10-K

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UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the Fiscal Year Ended December 31, 2018

Commission File No. 1-13653 

AMERICAN FINANCIAL GROUP, INC.

Incorporated under the Laws of Ohio IRS Employer I.D. No. 31-1544320

301 East Fourth Street, Cincinnati, Ohio 45202

(513) 579-2121

Securities Registered Pursuant to Section 12(b) of the Act:
	Title of Each Class	Name of Each Exchange on Which Registered
	Common Stock	New York Stock Exchange
	6-1/4% Subordinated Debentures due September 30, 2054	New York Stock Exchange
	6% Subordinated Debentures due November 15, 2055	New York Stock Exchange

Securities Registered Pursuant to Section 12(g) of the Act: None

Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes þ No ¨

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ¨ No þ

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months, and (2) has been subject to such filing requirements for the past 90 days. Yes þ No ¨

Indicate by check mark whether the Registrant has submitted electronically, every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months. Yes þ No ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of Registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. þ

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. 

Large accelerated filer  þ                        Accelerated filer  ¨                        Non-accelerated filer  ¨

Smaller reporting company  ¨                        Emerging growth company  ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ¨ No þ

State the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the Registrant’s most recently completed second fiscal quarter: $8.40 billion.

Indicate the number of shares outstanding of each of the Registrant’s classes of common stock, as of the latest practicable date: 89,312,398 shares (excluding 14.9 million shares owned by subsidiaries) as of February 1, 2019.

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Documents Incorporated by Reference:

Proxy Statement for 2019 Annual Meeting of Stockholders (portions of which are incorporated by reference into Part III hereof).

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AMERICAN FINANCIAL GROUP, INC.

INDEX TO ANNUAL REPORT ON FORM 10-K

			Page
FORWARD-LOOKING STATEMENTS			1
Part I
Item 1	—	Business	2
Item 1A	—	Risk Factors	14
Item 1B	—	Unresolved Staff Comments	none
Item 2	—	Properties	22
Item 3	—	Legal Proceedings	22
Item 4	—	Mine Safety Disclosures	none
Part II
Item 5	—	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	23
Item 6	—	Selected Financial Data	25
Item 7	—	Management’s Discussion and Analysis of Financial Condition and Results of Operations	27
Item 7A	—	Quantitative and Qualitative Disclosure About Market Risk	101
Item 8	—	Financial Statements and Supplementary Data	103
Item 9	—	Changes in and Disagreements With Accountants on Accounting and Financial Disclosure	none
Item 9A	—	Controls and Procedures	103
Item 9B	—	Other Information	none
Part III
Item 10	—	Directors, Executive Officers and Corporate Governance	S-1
Item 11	—	Executive Compensation	S-1
Item 12	—	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	S-1
Item 13	—	Certain Relationships and Related Transactions, and Director Independence	S-1
Item 14	—	Principal Accounting Fees and Services	S-1
Part IV
Item 15	—	Exhibits, Financial Statement Schedules	S-1

FORWARD-LOOKING STATEMENTS

The disclosures in this Form 10-K contain certain forward-looking statements that are subject to numerous assumptions, risks or uncertainties. The Private Securities Litigation Reform Act of 1995 provides a safe harbor for forward-looking statements. Some of the forward-looking statements can be identified by the use of words such as “anticipates”, “believes”, “expects”, “projects”, “estimates”, “intends”, “plans”, “seeks”, “could”, “may”, “should”, “will” or the negative version of those words or other comparable terminology. Such forward-looking statements include statements relating to: expectations concerning market and other conditions and their effect on future premiums, revenues, earnings, investment activities, and the amount and timing of share repurchases; recoverability of asset values; expected losses and the adequacy of reserves for asbestos, environmental pollution and mass tort claims; rate changes; and improved loss experience.

Actual results and/or financial condition could differ materially from those contained in or implied by such forward-looking statements for a variety of reasons including but not limited to the following and those discussed in Item 1A — Risk Factors.

• changes in financial, political and economic conditions, including changes in interest and inflation rates, currency fluctuations and extended economic recessions or expansions in the U.S. and/or abroad;

• performance of securities markets, including the cost of equity index options;

• new legislation or declines in credit quality or credit ratings that could have a material impact on the valuation of securities in AFG’s investment portfolio;

• the availability of capital;

• changes in insurance law or regulation, including changes in statutory accounting rules and changes in regulation of the Lloyd’s market, including modifications to the establishment of capital requirements for and approval of business plans for syndicate participation;

• changes in the legal environment affecting AFG or its customers;

• tax law and accounting changes, including the impact of recent changes in U.S. corporate tax law;

• levels of natural catastrophes and severe weather, terrorist activities (including any nuclear, biological, chemical or radiological events), incidents of war or losses resulting from civil unrest and other major losses;

• disruption caused by cyber-attacks or other technology breaches or failures by AFG or its business partners and service providers, which could negatively impact AFG’s business and/or expose AFG to litigation;

• development of insurance loss reserves and establishment of other reserves, particularly with respect to amounts associated with asbestos and environmental claims;

• availability of reinsurance and ability of reinsurers to pay their obligations;

• trends in persistency and mortality;

• competitive pressures;

• the ability to obtain adequate rates and policy terms;

• changes in AFG’s credit ratings or the financial strength ratings assigned by major ratings agencies to AFG’s operating subsidiaries; and

• the impact of the conditions in the international financial markets and the global economy relating to AFG’s international operations.

The forward-looking statements herein are made only as of the date of this report. The Company assumes no obligation to publicly update any forward-looking statements.

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PART I

ITEM 1

Business

Introduction

American Financial Group, Inc. (“AFG” or the “Company”) is an insurance holding company. Through the operations of Great American Insurance Group, AFG is engaged primarily in property and casualty insurance, focusing on specialized commercial products for businesses, and in the sale of traditional fixed, fixed-indexed and variable-indexed annuities in the retail, financial institutions, registered investment advisor and education markets. Its address is 301 East Fourth Street, Cincinnati, Ohio 45202; its phone number is (513) 579-2121. SEC filings, news releases, AFG’s Code of Ethics applicable to directors, officers and employees and other information may be accessed free of charge through AFG’s Internet site at: www.AFGinc.com. (Information on AFG’s Internet site is not part of this Form 10-K.)

See Note C — “Segments of Operations” to the financial statements for information on AFG’s assets, revenues and earnings before income taxes by segment.

Property and Casualty Insurance Segment

General

AFG’s property and casualty insurance operations provide a wide range of commercial coverages through over 30 niche insurance businesses that make up the Great American Insurance Group. AFG’s property and casualty insurance operations ultimately report to a single senior executive and operate under a business model that allows local decision-making for underwriting, claims and policy servicing in each of the niche operations. Each business is managed by experienced professionals in particular lines or customer groups and operates autonomously but with certain central controls and accountability. The decentralized approach allows each unit the autonomy necessary to respond to local and specialty market conditions while capitalizing on the efficiencies of centralized investment and administrative support functions. AFG’s property and casualty insurance operations employed approximately 6,700 people as of December 31, 2018. These operations are conducted through the subsidiaries listed in the following table, which includes independent financial strength ratings and 2018 gross written premiums (in millions) for each major subsidiary. These ratings are generally based on concerns for policyholders and agents and are not directed toward the protection of investors. AFG believes that maintaining a rating in the “A” category by A.M. Best is important to compete successfully in most lines of business.

	Ratings		Gross Written
	AM Best	S&P	Premiums
Insurance Group
Great American Insurance	A+	A+	$	4,478
National Interstate	A+	not rated	755
Summit (Bridgefield Casualty and Bridgefield Employers)	A	A+	605
Republic Indemnity	A	A+	219
Neon Lloyd’s Syndicate	A	A+	532
Mid-Continent Casualty	A+	A+	143
Other			108
			$	6,840

The primary objectives of AFG’s property and casualty insurance operations are to achieve solid underwriting profitability and provide excellent service to its policyholders and agents. Underwriting profitability is measured by the combined ratio, which is a sum of the ratios of losses, loss adjustment expenses (“LAE”), underwriting expenses and policyholder dividends to premiums. A combined ratio under 100% indicates an underwriting profit. The combined ratio does not reflect investment income, other income or federal income taxes.

While many costs included in underwriting are readily determined (commissions, administrative expenses and many of the losses on claims reported), the process of determining overall underwriting results is highly dependent upon the use of estimates in the case of losses incurred or expected but not yet reported or developed. Actuarial procedures and projections are

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used to obtain “point estimates” of ultimate losses. While the process is imprecise and develops amounts which are subject to change over time, management believes that the liabilities for unpaid losses and loss adjustment expenses are adequate.

Financial information is reported in accordance with U.S. generally accepted accounting principles (“GAAP”) for shareholder and other investor-related purposes and reported on a statutory basis for U.S. insurance regulatory purposes. Unless indicated otherwise, the financial information presented in the Form 10-K for AFG’s property and casualty insurance operations is presented based on GAAP. Statutory information is only prepared for AFG’s U.S.-based subsidiaries, which represented approximately 91% of AFG’s direct written premiums in 2018, and is provided for industry comparisons or where comparable GAAP information is not readily available.

Major differences for statutory accounting include charging policy acquisition costs to expense as incurred rather than spreading the costs over the periods covered by the policies; reporting investment grade bonds and redeemable preferred stocks at amortized cost rather than fair value; netting of reinsurance recoverables and prepaid reinsurance premiums against the corresponding liabilities rather than reporting such items separately; and charging to surplus certain GAAP assets, such as furniture and fixtures and agents’ balances over 90 days old.

AFG’s statutory combined ratio averaged 91.7% for the period 2016 to 2018 as compared to 101.8% for the property and casualty industry over the same period (Sources: Conning, Inc.’s Property - Casualty Forecast & Analysis (Fourth Quarter 2018 Edition, used with permission) and A.M. Best’s Review & Preview Report (February 2018 Edition)). AFG believes that its specialty niche focus, product line diversification and underwriting discipline have contributed to the Company’s ability to consistently outperform the industry’s underwriting results. Management’s philosophy is to refrain from writing business that is not expected to produce an underwriting profit even if it is necessary to limit premium growth to do so.

Property and Casualty Results

Performance measures such as underwriting profit or loss and related combined ratios are often used by property and casualty insurers to help users of their financial statements better understand the company’s performance. See Note C — “Segments of Operations” to the financial statements for the reconciliation of AFG’s earnings before income taxes by significant business segment to the statement of earnings.

The following table shows the performance of AFG’s property and casualty insurance operations (dollars in millions):

	2018			2017			2016
Gross written premiums	$	6,840		$	6,502		$	5,981
Ceded reinsurance	(1,817		)	(1,751		)	(1,595		)
Net written premiums	$	5,023		$	4,751		$	4,386
Net earned premiums	$	4,865		$	4,579		$	4,328
Loss and LAE	2,985			2,884			2,669
Special asbestos and environmental (“A&E”) charges	18			89			36
Neon exited lines charge	—			(18		)	65
Underwriting expenses	1,560			1,382			1,322
Underwriting gain	$	302		$	242		$	236
GAAP ratios:
Loss and LAE ratio	61.7		%	64.5		%	63.8		%
Underwriting expense ratio	32.1		%	30.2		%	30.7		%
Combined ratio	93.8		%	94.7		%	94.5		%
Statutory ratios:
Loss and LAE ratio	60.2		%	63.0		%	58.8		%
Underwriting expense ratio	31.6		%	30.1		%	31.4		%
Combined ratio	91.8		%	93.1		%	90.2		%
Industry statutory combined ratio (a)
All lines	99.4		%	105.1		%	100.9		%
Commercial lines	98.7		%	103.5		%	99.6		%

(a) The sources of the industry ratios are Conning, Inc.’s Property - Casualty Forecast & Analysis (Fourth Quarter 2018 Edition, used with permission) for 2018 and A.M. Best’s Review & Preview Report (February 2018 Edition) for 2017 and 2016.

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As with other property and casualty insurers, AFG’s operating results can be adversely affected by unpredictable catastrophe losses. Certain natural disasters (hurricanes, severe storms, earthquakes, tornadoes, floods, etc.) and other incidents of major loss (explosions, civil disorder, terrorist events, fires, etc.) are classified as catastrophes by industry associations. Losses from these incidents are usually tracked separately from other business of insurers because of their sizable effects on overall operations. Total net losses to AFG’s insurance operations from current accident year catastrophes were $103 million in 2018, $140 million in 2017 and $55 million in 2016 and are included in the table above.

AFG generally seeks to reduce its exposure to catastrophes through individual risk selection, including minimizing coastal and known fault-line exposures, and the purchase of reinsurance. AFG’s net exposure to a catastrophic earthquake or windstorm that industry models indicate should statistically occur once in every 500 years (a “500-year event”) is expected to be approximately 6% of AFG’s Shareholders’ Equity.

Property and Casualty Insurance Products

AFG is focused on growth opportunities in what it believes to be more profitable specialty businesses where AFG personnel are experts in particular lines of business or customer groups. The following are examples of AFG’s specialty businesses:

Property and Transportation
Inland and Ocean Marine	Provides coverage primarily for builders’ risk, contractors’ equipment, property, motor truck cargo, marine cargo, boat dealers, marina operators/dealers and excursion vessels.
Agricultural-related	Provides federally reinsured multi-peril crop (allied lines) insurance covering most perils as well as crop-hail, equine mortality and other coverages for full-time operating farms/ranches and agribusiness operations on a nationwide basis.
Commercial Automobile	Provides coverage for vehicles (such as buses and trucks) in a broad range of businesses including the moving and storage and transportation industries, and a specialized physical damage product for the trucking industry.
Specialty Casualty
Executive and Professional Liability	Markets coverage for directors and officers of businesses and non-profit organizations; errors and omissions; cyber; and mergers and acquisitions.
Umbrella and Excess Liability	Provides liability coverage in excess of primary layers.
Excess and Surplus	Provides liability, umbrella and excess coverage for unique, volatile or hard to place risks, using rates and forms that generally do not have to be approved by state insurance regulators.
General Liability	Provides coverage for contractor-related businesses, energy development and production risks, and environmental liability risks.
Targeted Programs	Includes coverage (primarily liability and property) for social service agencies, leisure, entertainment and non-profit organizations, customized solutions for other targeted markets and alternative risk programs using agency captives.
Workers’ Compensation	Provides coverage for prescribed benefits payable to employees who are injured on the job.
Specialty Financial
Fidelity and Surety	Provides fidelity and crime coverage for government, mercantile and financial institutions and surety coverage for various types of contractors and public and private corporations.
Lease and Loan Services	Provides coverage for insurance risk management programs for lending and leasing institutions, including equipment leasing and collateral and lender-placed mortgage property insurance.

Management believes specialization is the key element to the underwriting success of these business units. These specialty businesses are opportunistic and their premium volume will vary based on prevailing market conditions. AFG continually evaluates expansion in existing markets and opportunities in new specialty markets that meet its profitability objectives. Likewise, AFG will withdraw from markets that do not meet its profit objectives or business strategy.

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Premium Distribution

The following table shows the net written premiums by sub-segment for AFG’s property and casualty insurance operations for 2018, 2017 and 2016 (in millions):

	2018		2017		2016
Property and transportation	$	1,754	$	1,765	$	1,672
Specialty casualty	2,509		2,280		2,036
Specialty financial	602		596		572
Other	158		110		106
	$	5,023	$	4,751	$	4,386

The geographic distribution of statutory direct written premiums by AFG’s U.S.-based insurers for 2018, 2017 and 2016 is shown below. Approximately 9% of AFG’s direct written premiums in 2018 were derived from non U.S.-based insurers, primarily Neon, a United Kingdom-based Lloyd’s insurer.

	2018		2017		2016			2018		2017		2016
California	13.5	%	13.2	%	14.3	%	Missouri	2.5	%	2.8	%	2.7	%
Florida	10.0	%	10.0	%	9.6	%	Pennsylvania	2.5	%	2.4	%	2.5	%
New York	6.8	%	6.6	%	6.7	%	Iowa	2.3	%	2.4	%	2.3	%
Texas	6.8	%	6.2	%	6.1	%	Kansas	2.3	%	2.2	%	2.2	%
Illinois	5.3	%	5.6	%	5.3	%	North Carolina	2.1	%	2.1	%	2.4	%
Georgia	3.3	%	3.2	%	2.9	%	Arizona	2.0	%	2.6	%	2.1	%
New Jersey	2.6	%	2.6	%	2.5	%	Other	38.0	%	38.1	%	38.4	%
								100.0	%	100.0	%	100.0	%

Reinsurance

Consistent with standard practice of most insurance companies, AFG reinsures a portion of its property and casualty business with other insurance companies and assumes a relatively small amount of business from other insurers. AFG uses reinsurance for two primary purposes: (i) to provide higher limits of coverage than it would otherwise be willing to provide (i.e. large line capacity) and (ii) to protect its business by reducing the impact of catastrophes. The availability and cost of reinsurance are subject to prevailing market conditions, which may affect the volume and profitability of business that is written. AFG is subject to credit risk with respect to its reinsurers, as the ceding of risk to reinsurers does not relieve AFG of its liability to its insureds until claims are fully settled.

Reinsurance is provided on one of two bases, facultative or treaty. Facultative reinsurance is generally provided on a risk-by-risk basis. Individual risks are ceded and assumed based on an offer and acceptance of risk by each party to the transaction. AFG purchases facultative reinsurance, both pro rata and excess of loss, depending on the risk and available reinsurance markets. Treaty reinsurance provides for risks meeting prescribed criteria to be automatically ceded and assumed according to contract provisions.

Catastrophe Reinsurance AFG has taken steps to limit its exposure to wind and earthquake losses through individual risk selection, including minimizing coastal and known fault-line exposures, and purchasing catastrophe reinsurance. Catastrophe reinsurance is purchased separately for AFG’s U.S. property and casualty insurance group and for Neon, AFG’s Lloyd’s insurance business. In addition, AFG purchases catastrophe reinsurance for its workers’ compensation businesses. Although the cost of catastrophe reinsurance varies depending on exposure and the level of worldwide loss activity, AFG continues to obtain reinsurance coverage in adequate amounts at acceptable rates.

In June 2017, AFG’s property and casualty insurance subsidiaries entered into a reinsurance agreement to obtain supplemental catastrophe protection through a catastrophe bond structure with Riverfront Re Ltd. (“Riverfront”). The reinsurance agreement provides supplemental reinsurance coverage up to 95% of $200 million (fully collateralized) for catastrophe losses in excess of $104 million (per occurrence and annual aggregate) occurring between June 1, 2017 and December 31, 2020. In connection with the reinsurance agreement, Riverfront issued notes to unrelated investors for the full amount of coverage provided under the reinsurance agreement. Riverfront is a variable interest entity in which AFG does not have a variable interest because the variability in Riverfront’s results will be absorbed entirely by the investors in Riverfront. Accordingly, Riverfront is not

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consolidated in AFG’s financial statements and the reinsurance agreement is accounted for as ceded reinsurance. AFG’s cost for this coverage is approximately $11 million per year.

In January 2018, Neon launched NCM Re (UK PCC) Ltd. (“NCM Re”), the first insurance-linked securities (“ILS”) vehicle in the United Kingdom (“UK”). NCM Re utilizes recently approved UK regulations to provide Neon with the ability to further enhance its global reinsurance offering to clients. NCM Re uses a range of catastrophe modeling and pricing techniques to make use of Neon’s underwriting and risk selection skills to source business for third-party ILS investors in the capital markets. In early 2019, NCM Re completed its second ILS transaction, which provides $77 million in collateralized quota share reinsurance that assumed 17.1% of the Neon Lloyd’s syndicate’s property treaty reinsurance and direct and facultative portfolios. Losses are recovered from NCM Re before Neon’s catastrophe excess of loss reinsurance coverage applies. In addition to NCM Re, Neon also placed a 25.5% quota share reinsurance treaty covering its property insurance and a further 7.1% quota share treaty covering its property insurance placed under binding authorities.

Also in January 2019, AFG’s property and casualty insurance subsidiaries renewed their catastrophe reinsurance coverages. For AFG’s U.S. based operations, the Company continued to place $85 million of coverage in excess of a $15 million per event primary retention in the traditional reinsurance markets. Neon placed $225 million of coverage in excess of a $25 million per event primary retention. For the catastrophe excess of loss reinsurance coverage, recoveries from NCM Re and Neon’s property insurance quota share apply before calculating losses recoverable from the catastrophe excess of loss reinsurance treaty. In addition to Neon’s catastrophe excess of loss reinsurance coverage, Neon has placed a quota share treaty which covers 12.8% of Neon’s gross property losses with a $510 million event limit (maximum $65 million recoverable) which supplements its catastrophe excess of loss reinsurance coverage and property quota share coverages up to the event limit; recoveries from this quota share treaty also apply before calculating losses recoverable from the catastrophe excess of loss reinsurance treaty.

The commercial marketplace requires large policy limits ($25 million or more) in several of AFG’s lines of business, including certain executive and professional liability, umbrella and excess liability, and fidelity and surety coverages. Since these limits exceed management’s desired exposure to an individual risk, AFG generally enters into reinsurance agreements to reduce its net exposure under such policies to an acceptable level. Reinsurance continues to be available for this large line capacity exposure with satisfactory pricing and terms.

In addition to the catastrophe and large line capacity reinsurance programs discussed above, AFG purchases reinsurance on a product-by-product basis. AFG regularly reviews the financial strength of its current and potential reinsurers. These reviews include consideration of credit ratings, available capital, claims paying history and expertise. This process periodically results in the transfer of risks to more financially secure reinsurers. Substantially all reinsurance is ceded to companies with investment grade S&P ratings or is secured by “funds withheld” or other collateral. Under “funds withheld” arrangements, AFG retains ceded premiums to fund ceded losses as they become due from the reinsurer. Recoverables from the following companies were individually between 5% and 10% of AFG’s total property and casualty reinsurance recoverable (including prepaid reinsurance premiums and net of payables to reinsurers) at December 31, 2018: Hannover Rueck SE, Munich Reinsurance America, Inc. and Swiss Reinsurance America Corporation. In addition, AFG has a reinsurance recoverable from Ohio Casualty Insurance Company of $149 million related to that company’s purchase of AFG’s commercial lines business in 1998. No other reinsurers exceeded 5% of AFG’s property and casualty reinsurance recoverable.

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The following table presents (by type of coverage) the amount of each loss above the specified retention covered by treaty reinsurance programs in AFG’s U.S.-based property and casualty insurance operations (in millions) as of January 1, 2019:

			Reinsurance Coverage						AFG
	Primary		Coverage		AFG Participation (a)				Maximum
	Retention		Amount		%		$		Loss (b)
U.S.-based operations:
California Workers’ Compensation	$	2	$	148	1	%	$	1	$	3
Summit Workers’ Compensation	3		37		—	%	—		3
Other Workers’ Compensation	2		48		—	%	—		2
Commercial Umbrella	1		49		14	%	7		8
Property — General	5		45		1	%	1		6
Property — Catastrophe	15		85		—	%	—		15
Neon Lloyd’s Syndicate
Property — Catastrophe (c)	25		225		—	%	—		25
Riverfront Re Ltd. catastrophe bond (d)	104		200		5	%	10		N/A

(a) Includes the participation of AFG’s internal reinsurance program.

(b) Maximum loss per event for claims up to reinsurance coverage limit.

(c) Neon’s excess of loss catastrophe reinsurance limits the maximum retained loss per event to $25 million for a U.S. catastrophe and $15 million for a non-U.S. catastrophe until such coverage is exhausted. During 2019, Neon intends to evaluate purchasing additional catastrophe reinsurance to reduce its maximum retained loss per event from a U.S. catastrophe to $15 million.

(d) Includes aggregate coverage. See description above.

In addition to the coverage shown above, AFG reinsures a portion of its crop insurance business through the Federal Crop Insurance Corporation (“FCIC”). The FCIC offers both proportional (or “quota share”) and non-proportional coverages. The proportional coverage provides that a fixed percentage of risk is assumed by the FCIC. The non-proportional coverage allows AFG to select desired retention of risk on a state-by-state, county, crop or plan basis. AFG typically reinsures 15% to 25% of gross written premiums with the FCIC. AFG also purchases quota share reinsurance in the private market. This quota share provides for a ceding commission to AFG and a profit sharing provision. During 2018 and 2017, AFG reinsured 50% and 52.5%, respectively, of premiums not reinsured by the FCIC in the private market and purchased stop loss protection coverage for the remaining portion of the business. In 2019, AFG expects to reinsure 50% of the premiums not reinsured by the FCIC in the private market.

The balance sheet caption “recoverables from reinsurers” included approximately $109 million on paid losses and LAE and $2.94 billion on unpaid losses and LAE at December 31, 2018. These amounts are net of allowances of approximately $18 million for doubtful collection of reinsurance recoverables. The collectibility of a reinsurance balance is based upon the financial condition of a reinsurer as well as individual claim considerations.

Reinsurance premiums ceded and assumed are presented in the following table (in millions):

	2018		2017		2016
Reinsurance ceded	$	1,817	$	1,751	$	1,595
Reinsurance ceded, excluding crop	1,202		1,076		985
Reinsurance assumed — including involuntary pools and associations	214		192		123

Loss and Loss Adjustment Expense Reserves

The consolidated financial statements include the estimated liability for unpaid losses and LAE of AFG’s insurance subsidiaries. This liability represents estimates of the ultimate net cost of all unpaid losses and LAE and is determined by using case-basis evaluations, actuarial projections and management’s judgment. These estimates are subject to the effects of changes in claim amounts and frequency and are periodically reviewed and adjusted as additional information becomes known. In accordance with industry practices, such adjustments are reflected in current year operations. Generally, reserves for reinsurance assumed and involuntary pools and associations are reflected in AFG’s results at the amounts reported by those entities. See Note O — “Insurance — Property and Casualty Insurance Reserves” to the financial statements for information

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on the development of AFG’s liability for unpaid losses and loss adjustment expenses by accident year as well as a progression of the liability on a GAAP basis over the past three years.

The differences between the liability for losses and LAE reported in the annual statements filed with the state insurance departments in accordance with statutory accounting principles (“SAP”) and that reported in the accompanying consolidated financial statements in accordance with GAAP at December 31, 2018 are as follows (in millions):

Liability reported on a SAP basis, net of $145 million of retroactive reinsurance	$	6,234
Reinsurance recoverables, net of allowance	2,942
Other, including reserves of foreign insurers	565
Liability reported on a GAAP basis	$	9,741

Asbestos and Environmental (“A&E”) Reserves   AFG’s property and casualty group, like many others in the industry, has A&E claims arising in most cases from general liability policies written more than thirty years ago. The establishment of reserves for such A&E claims presents unique and difficult challenges and is subject to uncertainties significantly greater than those presented by other types of claims. For a discussion of these uncertainties, see Item 7— Management’s Discussion and Analysis— “Uncertainties — Asbestos and Environmental-related (“A&E”) Insurance Reserves” and Note M— “Contingencies” to the financial statements.

The following table (in millions) is a progression of the property and casualty group’s A&E reserves.

	2018			2017			2016
Reserves at beginning of year	$	403		$	337		$	327
Incurred losses and LAE	18			89			36
Paid losses and LAE	(26		)	(23		)	(26		)
Reserves at end of year, net of reinsurance recoverable	395			403			337
Reinsurance recoverable, net of allowance	129			125			106
Gross reserves at end of year	$	524		$	528		$	443

In addition to its ongoing internal monitoring of asbestos and environmental exposures, AFG has periodically conducted comprehensive external studies of its asbestos and environmental reserves relating to the run-off operations of its property and casualty insurance segment and exposures related to its former railroad and manufacturing operations with the aid of specialty actuarial, engineering and consulting firms and outside counsel, every two years in recent periods, with an in-depth internal review during the intervening years. AFG is currently evaluating the frequency of future external studies.

An in-depth internal review of AFG’s A&E reserves was completed in the third quarter of 2018 by AFG’s internal A&E claims specialists in consultation with specialty outside counsel and an outside consultant. As a result of the review, AFG’s property and casualty insurance segment recorded an $18 million pretax special charge to increase its asbestos reserves by $6 million (net of reinsurance) and its environmental reserves by $12 million (net of reinsurance). Over the past few years, the focus of AFG’s asbestos claims litigation has shifted to smaller companies and companies with ancillary exposures. AFG’s insureds with these exposures have been the driver of the property and casualty segment’s asbestos reserve increases in recent years. AFG is seeing modestly increasing estimates for indemnity and defense compared to prior studies on certain specific open claims.

The increase in property and casualty environmental reserves in 2018 (as well as in 2017 and 2016) was primarily associated with updated estimates of site investigation and remedial costs with respect to existing sites and newly identified sites. AFG has updated its view of legal defense costs on open environmental claims as well as a number of claims and sites where the estimated investigation and remediation costs have increased. As in recent past years, there were no new or emerging broad industry trends that were identified in this review.

As a result of the comprehensive external study completed in the third quarter of 2017, AFG’s property and casualty insurance segment recorded an $89 million pretax special charge to increase its asbestos reserves by $53 million (net of reinsurance) and its environmental reserves by $36 million (net of reinsurance).

An in-depth internal review of AFG’s A&E reserves was completed in the third quarter of 2016. As a result of the review, AFG’s property and casualty insurance segment recorded a $36 million pretax special charge to increase its asbestos reserves by $5 million (net of reinsurance) and its environmental reserves by $31 million (net of reinsurance).

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Marketing

The property and casualty insurance group directs its sales efforts primarily through independent insurance agents and brokers, although small portions are written through employee agents. Independent agents and brokers generally receive a commission on the sale of each policy. Some agents and brokers are eligible for a bonus commission based on the overall profitability of policies placed with AFG by the broker or agent in a particular year. The property and casualty insurance group writes insurance through several thousand agents and brokers.

Competition

AFG’s property and casualty insurance businesses compete with other individual insurers, state funds and insurance groups of varying sizes, some of which are mutual insurance companies possessing competitive advantages in that all their profits inure to their policyholders. See Item 1A — Risk Factors. They also compete with self-insurance plans, captive programs and risk retention groups. Due to the specialty nature of these coverages, competition is based primarily on service to policyholders and agents, specific characteristics of products offered and reputation for claims handling. Financial strength ratings, price, commissions and profit sharing terms are also important factors. Management believes that sophisticated data analysis for refinement of risk profiles, extensive specialized knowledge and loss prevention service have helped AFG compete successfully.

Annuity Segment

General

AFG sells traditional fixed, fixed-indexed and variable-indexed annuities in the retail, financial institutions, broker-dealer and registered investment advisor markets through independent producers and through direct relationships with certain financial institutions. The annuity operations employed approximately 600 people at December 31, 2018. These operations are conducted primarily through the subsidiaries listed in the following table, which includes 2018 statutory annuity premiums (in millions), annuity policies in force and independent ratings.

			Annuity
	Annuity		Policies	Ratings
Company	Premiums		In Force	AM Best	S&P
Great American Life Insurance Company	$	5,212	423,000	A	A+
Annuity Investors Life Insurance Company	195		111,000	A	A+

AFG believes that the ratings assigned by independent insurance rating agencies are an important competitive factor because agents, potential policyholders and financial institutions often use a company’s rating as an initial screening device in considering annuity products. AFG believes that a rating in the “A” category by at least one rating agency is necessary to successfully compete in its primary annuity markets.

Due to the deposit-type nature of annuities, annuity premiums received and benefit payments are recorded as increases or decreases in the annuity benefits accumulated liability rather than as revenue and expense under GAAP. Statutory premiums of AFG’s annuity operations for the last three years were as follows (in millions):

	Statutory Premiums
	2018		2017		2016
Financial institutions single premium annuities — indexed	$	1,776	$	1,711	$	1,950
Financial institutions single premium annuities — fixed	492		622		468
Retail single premium annuities — indexed	1,418		990		1,056
Retail single premium annuities — fixed	87		70		73
Broker-dealer single premium annuities — indexed	1,271		733		658
Broker-dealer single premium annuities — fixed	14		7		9
Pension risk transfer	132		6		—
Education market — fixed and indexed annuities	192		174		184
Total fixed annuity premiums	5,382		4,313		4,398
Variable annuities	25		28		37
Total annuity premiums	$	5,407	$	4,341	$	4,435

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Annuities are long-term retirement saving instruments that benefit from income accruing on a tax-deferred basis. The issuer of the annuity collects premiums, credits interest or earnings on the policy and pays out a benefit upon death, surrender or annuitization. Single premium annuities are generally issued in exchange for a one-time lump-sum premium payment. Certain annuities, primarily in the education market, have premium payments that are flexible in both amount and timing as determined by the policyholder and are generally made through payroll deductions.

Annuity contracts are generally classified as either fixed rate (including fixed-indexed and variable-indexed) or variable. With a traditional fixed rate annuity, AFG seeks to maintain a desired spread between the yield on its investment portfolio and the rate it credits to policyholders. AFG accomplishes this by: (i) offering crediting rates that it has the option to change after any initial guarantee period (subject to minimum interest rate and other contractual guarantees); (ii) designing annuity products that encourage persistency; and (iii) maintaining an appropriate matching of assets and liabilities.

An indexed annuity provides policyholders with the opportunity to receive a crediting rate tied, in part, to the performance of an existing market index (generally the S&P 500) or other external rate, price, or unit value (an “index”). A fixed-indexed annuity protects against the related downside risk through a guarantee of principal (excluding surrender charges, market value adjustments, and certain benefit charges). In 2018, AFG began offering variable-indexed annuities, which are similar to fixed-indexed annuities except that the product offers greater upside participation in the selected index as compared to a fixed-indexed annuity and replaces the guarantee of principal in a fixed-indexed annuity with a guaranteed maximum loss. AFG purchases and sells call and put options designed to substantially offset the effect of the index participation in the liabilities associated with indexed annuities.

As an accommodation in its education market, AFG offers a limited amount of variable annuities. With a variable annuity, the earnings credited to the policy vary based on the investment results of the underlying investment options chosen by the policyholder, generally without any guarantee of principal except in the case of death of the insured. Premiums directed to the underlying investment options maintained in separate accounts are invested in funds managed by various independent investment managers. AFG earns a fee on amounts deposited into separate accounts. Subject to contractual provisions, policyholders may also choose to direct all or a portion of their premiums to various fixed-rate options, in which case AFG earns a spread on amounts deposited.

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The profitability of a fixed annuity business is largely dependent on the ability of a company to earn income on the assets supporting the business in excess of the amounts credited to policyholder accounts plus expenses incurred (earning a “spread”). Performance measures such as net spread earned are often presented by annuity businesses to help users of their financial statements better understand the company’s performance. The following table shows the earnings before income taxes, as well as the net spread earned on fixed annuities, for the annuity segment both before and after the impact of fair value accounting for derivatives related to fixed-indexed (including variable-indexed) annuities (“FIAs”) (dollars in millions):

	Year ended December 31,
	2018			2017			2016
Annuity earnings before income taxes — before unlocking and change in fair value of derivatives related to FIAs	$	425		$	416		$	394
Unlocking	(31		)	(3		)	1
Impact of derivatives related to FIAs (a):
Change in fair value of derivatives	(51		)	(70		)	(53		)
Related impact on amortization of DPAC (b)	18			37			26
Annuity segment earnings before income taxes	$	361		$	380		$	368
Net spread earned on fixed annuities — before impact of unlocking and derivatives related to FIAs	1.26		%	1.34		%	1.38		%
Unlocking	(0.09		%)	(0.01		%)	0.01		%
Impact of derivatives related to FIAs:
Change in fair value of derivatives	(0.15		%)	(0.22		%)	(0.19		%)
Related impact on amortization of DPAC (b)	0.05		%	0.12		%	0.09		%
Net spread earned on fixed annuities	1.07		%	1.23		%	1.29		%

(a) FIAs provide policyholders with a crediting rate tied, in part, to the performance of an existing stock market or other financial index. AFG attempts to mitigate the risk in the index-based component of these products through the purchase and sale of call and put options on the appropriate index. AFG’s strategy is designed so that the change in the fair value of the call option assets and put option liabilities will generally offset the economic change in the policyholder liability from the index participation. Both the index-based component of the annuities (fair value of $2.72 billion at December 31, 2018) and the related call and put options (net fair value of $183 million at December 31, 2018) are considered derivatives that must be marked-to-market through earnings each period. Fluctuations in interest rates and the stock market, among other factors, can cause volatility in the periodic measurement of fair value of the embedded derivative that management believes can be inconsistent with the long-term economics of these products.

(b) An estimate of the related acceleration/deceleration of the amortization of deferred policy acquisition costs and deferred sales inducements.

Marketing

AFG sells its single premium annuities, excluding financial institution production (discussed below), primarily through a retail network of approximately 75 national marketing organizations (“NMOs”) and managing general agents (“MGAs”) who, in turn, direct approximately 1,600 actively producing agents.

AFG also sells single premium annuities in financial institutions through direct relationships with certain financial institutions and through independent agents and brokers. The table below highlights the percentage of AFG’s total annuity premiums generated through its top five financial institution relationships (ranked based on 2018 statutory premiums):

	2018		2017
Wells Fargo & Company	7.4	%	8.1	%
The PNC Financial Services Group, Inc.	6.6	%	9.1	%
Regions Financial Corporation	4.8	%	6.5	%
LPL Financial	4.8	%	5.5	%
BB&T Corporation	3.7	%	5.5	%

In the education market, schools may allow employees to save for retirement through contributions made on a before-tax basis. Federal income taxes are not payable on pretax contributions or earnings until amounts are withdrawn. AFG sells its education market annuities through regional and national agencies.

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AFG is licensed to sell its fixed annuity products in all states except New York; it is licensed to sell its variable products in all states except New York and Vermont. At December 31, 2018, AFG had approximately 536,000 annuity policies in force. The states that accounted for 5% or more of AFG’s statutory annuity premiums in 2018 and the comparable preceding years are shown below:

	2018		2017		2016
California	10.2	%	10.0	%	9.8	%
Florida	8.1	%	7.3	%	8.5	%
Pennsylvania	5.5	%	6.1	%	7.2	%
Ohio	5.2	%	5.4	%	5.2	%
Texas	5.1	%	5.1	%	4.6	%

Competition

AFG’s annuity businesses operate in highly competitive markets. They compete with other insurers and financial institutions based on many factors, including: (i) ratings; (ii) financial strength; (iii) reputation; (iv) service to policyholders and agents; (v) product design (including interest rates credited, bonus features and index participation); and (vi) commissions. Since most policies are marketed and distributed through independent agents, the insurance companies must also compete for agents.

No single insurer dominates the markets in which AFG’s annuity businesses compete. See Item 1A — Risk Factors. Competitors include (i) individual insurers and insurance groups, (ii) mutual funds and (iii) other financial institutions. In a broader sense, AFG’s annuity businesses compete for retirement savings with a variety of financial institutions offering a full range of financial services. In the financial institution annuity market, AFG’s annuities compete directly against competitors’ annuities, certificates of deposit and other investment alternatives at the point of sale. In addition, over the last few years, several offshore and/or hedge fund companies have made significant acquisitions of annuity businesses, resulting in annuity groups that are larger in size than AFG’s annuity business.

Sales of annuities, including renewal premiums, are affected by many factors, including: (i) competitive annuity products and rates; (ii) the general level and volatility of interest rates, including the slope of the yield curve; (iii) the favorable tax treatment of annuities; (iv) commissions paid to agents; (v) services offered; (vi) ratings from independent insurance rating agencies; (vii) other alternative investments; (viii) performance and volatility of the equity markets; (ix) media coverage of annuities; (x) regulatory developments regarding suitability and the sales process; and (xi) general economic conditions.

Other Operations

AFG ceased new sales of long-term care insurance in January 2010 and sold substantially all of its run-off long-term care business in December 2015. The legal entities sold in 2015, United Teacher Associates Insurance Company and Continental General Insurance Company, contained substantially all of AFG’s long-term care insurance reserves (96% as measured by net statutory reserves as of November 30, 2015), as well as smaller blocks of annuity and life insurance business. Renewal premiums on the remaining small block of long-term care policies (which are guaranteed renewable) covering approximately 1,500 lives will be accepted unless those policies lapse. At December 31, 2018, AFG’s long-term care insurance reserves were $45 million, net of reinsurance recoverables and excluding the impact of unrealized gains on securities.

Although AFG no longer actively markets new life insurance products, it continues to service and receive renewal premiums on its in-force block of approximately 97,000 policies and $10.82 billion gross ($3.13 billion net of reinsurance) of life insurance in force at December 31, 2018. Renewal premiums, net of reinsurance, were $21 million in 2018, $17 million in 2017 and $18 million in 2016. At December 31, 2018, AFG’s life insurance reserves were $292 million, net of reinsurance recoverables.

Through subsidiaries, AFG is engaged in a variety of other operations, including commercial real estate operations in Cincinnati (office buildings), Whitefield, New Hampshire (Mountain View Grand Resort), Chesapeake Bay (Skipjack Cove Yachting Resort and Bay Bridge Marina), Charleston (Charleston Harbor Resort and Marina) and Palm Beach (Sailfish Marina and Resort). These operations employed approximately 300 full-time employees at December 31, 2018.

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Investment Portfolio

General

A summary of AFG’s fixed maturities and equity securities is shown in Note E — “Investments” to the financial statements. For additional information on AFG’s investments, see Item 7 — Management’s Discussion and Analysis — “Investments.” AFG’s earned yield (net investment income divided by average invested assets) on fixed maturities was 4.4% for both 2018 and 2017 and 4.5% for 2016.

The table below compares total returns, which include changes in fair value, on AFG’s fixed maturities and common stocks and equivalents to comparable public indices. While there are no directly comparable indices to AFG’s portfolio, the two shown below are widely used benchmarks in the financial services industry.

	2018		2017		2016
Total return on AFG’s fixed maturities	1.3	%	5.9	%	4.7	%
Barclays Capital U.S. Universal Bond Index	(0.3	%)	4.1	%	3.9	%
Total return on AFG’s common stocks and equivalents	(12.0	%)	15.8	%	12.5	%
Standard & Poor’s 500 Index	(4.4	%)	21.8	%	12.0	%

AFG’s bond portfolio is invested primarily in taxable bonds. The following table shows AFG’s available for sale fixed maturity investments by Standard & Poor’s Corporation or comparable rating as of December 31, 2018 (dollars in millions).

	Amortized		Fair Value
	Cost		Amount		%
S&P or comparable rating
AAA, AA, A	$	25,999	$	26,091	62	%
BBB	12,195		12,042		29	%
Total investment grade	38,194		38,133		91	%
BB	700		682		2	%
B	261		254		—	%
CCC, CC, C	588		688		2	%
D	202		233		—	%
Total non-investment grade	1,751		1,857		4	%
Not rated	1,892		2,007		5	%
Total	$	41,837	$	41,997	100	%

The National Association of Insurance Commissioners (“NAIC”) has retained third-party investment management firms to assist in the determination of appropriate NAIC designations for mortgage-backed securities (“MBS”) based not only on the probability of loss (which is the primary basis of ratings by the major ratings firms), but also on the severity of loss and statutory carrying value. Approximately 9% of AFG’s fixed maturity investments are MBS. At December 31, 2018, 98% (based on statutory carrying value of $41.81 billion) of AFG’s fixed maturity investments held by its insurance companies had an NAIC designation of 1 or 2 (the highest of the six designations).

Regulation

AFG’s insurance company subsidiaries are subject to regulation in the jurisdictions where they do business. In general, the insurance laws of the various states establish regulatory agencies with broad administrative powers governing, among other things, premium rates, solvency standards, licensing of insurers, agents and brokers, trade practices, forms of policies, maintenance of specified reserves and capital for the protection of policyholders, deposits of securities for the benefit of policyholders, investment activities and relationships between insurance subsidiaries and their parents and affiliates. Material transactions between insurance subsidiaries and their parents and affiliates generally must receive prior approval of the applicable insurance regulatory authorities and be disclosed. In addition, while differing from state to state, these regulations typically restrict the maximum amount of dividends that may be paid by an insurer to its shareholders in any twelve-month period without advance regulatory approval. Such limitations are generally based on net earnings or statutory surplus. Under applicable restrictions, the maximum amount of dividends available to AFG in 2019 from its insurance subsidiaries without seeking regulatory approval is approximately $1.30 billion.

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The Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 (“Dodd-Frank Act”), among other things, established a Federal Insurance Office (“FIO”) within the U.S. Treasury. Under this law, regulations will need to be created for the FIO to carry out its mandate to focus on systemic risk oversight. Since its formation, the FIO has worked with the NAIC and other stakeholders to explore a hybrid approach to regulation of the insurance industry; however, the state-based system of regulation has largely been retained. AFG cannot predict the future role of the FIO and its role in regulation of the insurance industry and how that might ultimately affect AFG’s operations.

Neon, AFG’s UK-based Lloyd’s insurer, is subject to regulation by Lloyd’s, including the establishment of capital requirements and approval of business plans, and the Prudential Regulation Authority.

Most states have created insurance guaranty associations that assess solvent insurers to pay claims of insurance companies that become insolvent. Annual guaranty assessments for AFG’s insurance companies have not been material.

Disclosure of Certain Activities Under Section 13(r) of the Securities Exchange Act of 1934

Section 13(r) of the Securities Exchange Act of 1934, as amended (“Section 13(r)”), requires a registrant to disclose in its annual or quarterly reports whether it or an affiliate knowingly engaged in certain activities, transactions or dealings related to Iran during the period covered by the report.

Certain of the Company’s subsidiaries located outside the United States subscribe to insurance policies that provide insurance coverage to vessels owned by international shipping and marine entities with vessels that travel worldwide. As a result, the insurance policies may be called upon to respond to claims involving or that have exposure to Iranian petroleum resources, refined petroleum, and petrochemical industries. For example, certain of the Company’s non-U.S. subsidiaries participate in global marine hull and war policies that provide coverage for damage to vessels navigating into and out of ports worldwide, which could include Iran.

For the year ended December 31, 2018, the Company is not aware of any additional premium with respect to underwriting insurance or reinsurance activities reportable under Section 13(r). Should any such risks have entered into the stream of commerce covered by these insurance or reinsurance activities, the Company believes that the premiums associated with such business would be immaterial.

ITEM 1A

Risk Factors

In addition to the other information set forth in this report, particularly information under “Forward-Looking Statements” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” the following factors could materially affect AFG’s business, financial condition, cash flows or future results. Any one of these factors could cause AFG’s actual results to vary materially from recent results or from anticipated future results. The risks described below are not the only risks facing AFG. Additional risks and uncertainties not currently known to management or that management currently deems to be immaterial also may materially adversely affect AFG’s business, financial condition and/or operating results.

Adverse developments in the financial markets and deterioration in global economic conditions could have a material adverse effect on AFG’s results of operations and financial condition.

Worldwide financial markets have, from time to time, experienced significant and unpredictable disruption. A prolonged economic downturn would result in heightened credit risk, reduced valuation of certain investments and decreased economic activity.

Changes in financial markets including fluctuations in interest rates, credit conditions, equity prices and many other factors that are unpredictable and beyond AFG’s control can adversely affect the value of investments and the realization of investment income.

A significant majority of AFG’s investment portfolio consists of fixed maturity investments, and changes in global economic conditions, including interest rates, could have a material adverse effect on AFG’s results of operations and financial condition.

As of December 31, 2018, approximately 87% of AFG’s investment portfolio holdings consisted of fixed maturity investments that are sensitive to changes in interest rates. A decline in interest rates may reduce the returns earned on new and floating-rate

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fixed maturity investments, thereby reducing AFG’s net investment income, while an increase in interest rates may reduce the value of AFG’s existing fixed maturity investments, which primarily have fixed interest rates. The value of AFG’s fixed maturity investments is also subject to credit risk as certain investments may default or become impaired due to deterioration in the financial condition of issuers of those investments. If a decline in the fair value of a specific investment (below its amortized cost) is considered to be other-than-temporary, a provision for impairment would be charged to earnings.

Despite modest increases in the past year, long-term interest rates have remained at historical lows for an extended period. In addition, central banks in some countries have pursued largely unprecedented negative interest rate policies in recent years, the consequences of which are uncertain. The continuation of the current low interest rate environment or a deflationary environment with negative interest rates could affect business behavior in ways that are adverse to AFG and could constrict AFG’s net investment income.

As of December 31, 2018, mortgage-backed securities constituted approximately 9% of AFG’s fixed maturity portfolio. In addition to the risks applicable to the entire fixed maturity investment portfolio, changes in interest rates can expose AFG to prepayment risks on mortgage-backed securities. In periods of declining interest rates, mortgage prepayments generally increase and mortgage-backed securities are paid down more quickly, requiring AFG to reinvest the proceeds at the then current market rates, which may be lower than on the securities repaid.

Changes in interest rates could adversely affect AFG’s results of operations.

The profitability of AFG’s annuity segment is largely dependent on the spread between what it earns on its investments and the crediting rate it pays on its annuity contracts plus expenses incurred.

Both rising and declining interest rates can negatively affect AFG’s annuity results. Most of AFG’s annuity products have guaranteed minimum crediting rates. Although AFG could reduce the average crediting rate on a substantial portion of its traditional fixed and fixed-indexed annuities during periods of low or falling interest rates, AFG may not be able to fully offset the decline in investment earnings with lower crediting rates.

During periods of rising interest rates, AFG may experience competitive pressure to increase crediting rates to avoid a decline in sales or increased surrenders, thus resulting in lower spreads. In addition, an increase in surrenders could require the sale of investments at a time when the prices of those assets are lower due to the increase in market rates, which may result in realized investment losses.

Intense competition could adversely affect AFG’s results of operations.

The property and casualty insurance segment operates in a highly competitive industry that is affected by many factors that can cause significant fluctuations in its results of operations. The lines of business in this segment compete with other individual insurers, state funds and insurance groups of varying sizes, some of which are mutual insurance companies possessing competitive advantages in that all their profits inure to their policyholders. In addition, certain foreign insurers may be taxed at lower rates, which may result in a competitive advantage over AFG. The property and casualty insurance segment also competes with self-insurance plans, captive programs and risk retention groups. Competition is based on many factors, including service to policyholders and agents, product design, reputation for claims handling, price, commissions, ratings and financial strength. Peer companies and competitors in some or all of AFG’s specialty lines include the following companies and/or their subsidiaries: Alleghany Corp., American International Group Inc., American National Insurance Company, AmTrust Financial Services, Inc., Arch Capital Group Ltd., Chubb Ltd., Cincinnati Financial Corp., CNA Financial Corp., Fairfax Financial Holdings Ltd. (Zenith National), The Hartford Financial Services Group, Inc., Lancer Insurance Company, Liberty Mutual, Markel Corp., Munich Re Group (American Modern Insurance), Protective Insurance Company, RLI Corp., The Travelers Companies, Inc., Tokio Marine Holdings, Inc. (HCC Insurance, Philadelphia Consolidated), W.R. Berkley Corp., AXA (XL Group Ltd.) and Zurich Insurance Group Ltd.

AFG’s annuity segment competes with individual insurers and insurance groups, mutual funds and other financial institutions. In addition, in recent years, offshore and/or hedge fund companies have made significant acquisitions of annuity businesses. Competition is based on numerous factors including reputation, product design, interest crediting rates, performance, scope of distribution, price and perceived financial strength and credit ratings. Peer companies and competitors for AFG’s annuity segment include the following companies and/or their subsidiaries: Allianz Life Insurance Company of North America, American Equity Investment Life Holding Company (Eagle Life Insurance Company), American International Group Inc., Athene Holding Ltd, Global Atlantic Financial Group Ltd. (Forethought Life Insurance Company), Lincoln National Corp., MetLife, Inc., Nationwide Mutual Insurance Company, Pacific Life Insurance Company, Sumitomo Life Insurance Company (Symetra Financial Corp.) and Voya Financial, Inc.

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Some of AFG’s competitors have more capital and greater resources than AFG, and may offer a broader range of products and lower prices than AFG offers. If competition limits AFG’s ability to write new or renewal business at adequate rates, its results of operations will be adversely affected.

A significant percentage of AFG’s sales of annuity products through financial institutions is concentrated in a small number of institutions.

Annuity premiums generated through financial institutions represented 42% of AFG’s annuity premiums in 2018. In 2018, two large financial institutions accounted for 34% of AFG’s total sales through financial institutions and 14% of AFG’s overall annuity sales. In the financial institutions annuity market, AFG competes directly against competitors’ annuities, certificates of deposit and other investment alternatives at the point of sale. Loss of a substantial portion of this business coupled with a failure to replace these financial institutions if they significantly reduce sales of AFG annuities could reduce AFG’s future growth.

AFG’s revenues could be adversely affected if it is not able to attract and retain independent agents.

AFG’s reliance on the independent agency market makes it vulnerable to a reduction in the amount of business written by agents. Many of AFG’s competitors also rely significantly on the independent agency market. Some of AFG’s competitors offer a wider variety of products, lower prices for insurance coverage or higher commissions. A reduction in the number of independent agencies marketing AFG’s products, the failure of agencies to successfully market AFG’s products, changes in the strategy or operations of agencies (including agency consolidation) or the choice of agencies to reduce their writings of AFG products could adversely affect AFG’s revenues and profitability.

The inability to obtain reinsurance or to collect on ceded reinsurance could adversely affect AFG’s results of operations.

AFG purchases reinsurance to limit the amount of risk it retains. Market conditions determine the availability and cost of the reinsurance protection AFG purchases, which affects the level of AFG’s business and profitability, as well as the level and types of risk AFG retains. If AFG is unable to obtain sufficient reinsurance at a cost AFG deems acceptable, AFG may opt to reduce the volume of its underwriting. AFG is also subject to credit risk with respect to its reinsurers, as AFG will remain liable to its insureds regardless of whether a reinsurer is able to meet its obligations under agreements covering the reinsurance ceded. The collectability of recoverables from reinsurers is subject to uncertainty arising from a number of factors, including a reinsurers’ financial capacity and willingness to make payments under the terms of a reinsurance treaty or contract and changes in market conditions. As of December 31, 2018, AFG has $3.35 billion of recoverables from reinsurers on its balance sheet.

AFG is subject to comprehensive regulation, and its ability to earn profits may be restricted by these regulations.

AFG is subject to comprehensive regulation by government agencies in the states and countries where its insurance company subsidiaries are domiciled and where these subsidiaries issue policies and handle claims. In addition, the Lloyd’s marketplace sets rules under which its members operate, including Neon (AFG’s Lloyd’s syndicate). Most insurance regulations are designed to protect the interests of AFG’s policyholders and third party claimants as opposed to its investors.

The Dodd-Frank Act, enacted in June 2010, mandates changes to the regulation of the financial services industry. Implementation of the Dodd-Frank Act is ongoing. The potential impacts of the Act on the U.S. insurance industry are not clear, but may affect AFG’s operations and governance in ways that could adversely affect AFG’s financial condition and results of operations.

Changes in domestic or foreign tax laws or interpretations of such laws could increase AFG’s corporate taxes and reduce earnings. For example, on December 22, 2017, the U.S. enacted The Tax Cuts and Jobs Act of 2017 (“TCJA”), which significantly reformed the U.S. tax code. Clarifications and interpretations of the TCJA may adversely affect our expected effective tax rate and the realization of deferred taxes.

As a participant in the federal crop insurance program, AFG could also be impacted by regulatory and legislative changes affecting that program. For example, the reinsurance levels that the federal government provides to authorized carriers could be reduced by future legislation. AFG will continue to monitor new and changing federal regulations and their potential impact, if any, on its insurance company subsidiaries.

On April 18, 2018, the U.S. Securities and Exchange Commission released a package of regulatory proposals to enhance standards of conduct owed by broker-dealers to their clients known as Regulation Best Interest. If adopted as proposed,

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Regulation Best Interest would heighten the standards that registered representatives need to meet when making a recommendation by requiring them to act in the best interest of the retail customer at the time of the recommendation. Regulation Best Interest would require a registered representative to (i) disclose to the customer the material facts relating to scope and terms of the relationship, (ii) exercise reasonable diligence, care, skill and prudence in recommending a product that is in the customer’s best interest, and (iii) eliminate or, at a minimum, disclose, material conflicts of interests.

Existing insurance-related laws and regulations may become more restrictive in the future or new restrictive laws may be enacted; it is not possible to predict the potential effects of these laws and regulations. The costs of compliance or the failure to comply with existing or future regulations could impose significant burdens on AFG.

A downgrade or potential downgrade in AFG’s financial strength and/or credit ratings by one or more rating agencies could adversely affect its business, financial condition, results of operations and/or cash flows.

Financial strength ratings are an important factor in establishing the competitive position of insurance companies and may have an effect on an insurance company’s sales. A downgrade out of the “A” category in AFG’s insurers’ claims-paying and financial strength ratings could significantly reduce AFG’s business volumes in certain lines of business, adversely impact AFG’s ability to access the capital markets and increase AFG’s borrowing costs.

In addition to the financial strength ratings of AFG’s principal insurance company subsidiaries, various rating agencies also publish credit ratings for AFG. Credit ratings are indicators of a debt issuer’s ability to meet the terms of debt obligations in a timely manner, are part of AFG’s overall financial profile and affect AFG’s ability to access certain types of capital. A downgrade in AFG’s credit ratings could have a material adverse effect on AFG’s financial condition and results of operations and cash flows in a number of ways, including adversely limiting access to capital markets, potentially increasing the cost of debt or increasing borrowing costs under AFG’s current revolving credit facility.

The continued threat of terrorism and ongoing military and other actions, as well as civil unrest, may adversely affect AFG’s results of operations.

The occurrence of one or more terrorist attacks could cause significant losses from insurance claims that could adversely affect AFG’s profitability. Private sector catastrophe reinsurance is limited and generally unavailable for terrorism losses caused by attacks with nuclear, biological, chemical or radiological weapons. Reinsurance coverage from the federal government under the Terrorism Risk Insurance Program Reauthorization Act of 2015 (“TRIPRA”) is also limited. Although TRIPRA provides benefits for certified acts of terrorism that exceed a certain threshold of industry losses ($160 million in 2018, increasing by $20 million annually to $200 million by 2020), those benefits are subject to a deductible and other limitations. In 2019, AFG would have to sustain losses from terrorism of nearly $700 million to be eligible for reinsurance under the program. In addition, because the interpretation of this law is untested, there is substantial uncertainty as to how it will be applied to specific circumstances. Finally, the program currently expires at the end of 2020, and the elimination or modification of the program, or a failure to extend the program, could adversely affect AFG’s property and casualty insurance business through increased exposure to a catastrophic level of terrorism losses.

AFG may experience difficulties with technology or data security, which could have an adverse effect on its business or reputation.

AFG uses computer systems and services to store, retrieve, evaluate and utilize company and customer data and information. Systems failures or outages could compromise AFG’s ability to perform business functions in a timely manner, which could harm its ability to conduct business and hurt its relationships with business partners and customers. In the event of a disaster such as a natural catastrophe, an industrial accident, a blackout, malicious software, a terrorist attack or war, AFG’s systems may be inaccessible to employees, customers or business partners for an extended period of time. Even if AFG’s employees are able to report to work, they may be unable to perform their duties for an extended period of time if the Company’s data or systems are disabled or destroyed.

AFG’s computer systems are vulnerable to security breaches due to the sophistication of cyber-attacks, viruses, malware, hackers and other external hazards, as well as inadvertent errors, equipment and system failures, and employee misconduct. In addition, over time, and particularly recently, the sophistication of these threats continues to increase. AFG’s administrative and technical controls as well as other preventative actions used to reduce the risk of cyber incidents and protect AFG’s information may be insufficient to detect or prevent unauthorized access, other physical and electronic break-ins, cyber-attacks or other security breaches to AFG’s computer systems or those of third parties with whom AFG does business.

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AFG has increasingly outsourced certain technology and business process functions to third parties and may continue to do so in the future. Outsourcing of certain technology and business process functions to third parties may expose AFG to increased risk related to data security or service disruptions. If AFG does not effectively develop, implement and monitor these relationships, third party providers do not perform as anticipated, technological or other problems are incurred with a transition, or outsourcing relationships relevant to AFG’s business process functions are terminated, AFG may not realize expected productivity improvements or cost efficiencies and may experience operational difficulties, increased costs and a loss of business.

The increased risks identified above could expose AFG to data loss, disruption of service, monetary and reputational damages, competitive disadvantage and significant increases in compliance costs and costs to improve the security and resiliency of AFG’s computer systems. The compromise of personal, confidential or proprietary information could also subject AFG to legal liability or regulatory action under evolving cyber-security, data protection and privacy laws and regulations enacted by the U.S. federal and state governments, Canada, the European Union (the “EU”) or other jurisdictions or by various regulatory organizations or exchanges. As a result, AFG’s ability to conduct business and its results of operations might be materially and adversely affected.

Any failure to protect the confidentiality of customer information could adversely affect AFG’s reputation and have a material adverse effect on AFG’s business, financial condition and results of operations.

AFG and certain of its third-party vendors collect and store sensitive data in the ordinary course of AFG’s business, including personal identification information of its employees and that of its customers, vendors, investors and other third parties. In connection with AFG’s property and casualty insurance operations, data may include medical information. AFG is subject to numerous federal, state and international laws regarding the privacy and security of personal information, which laws vary significantly from jurisdiction to jurisdiction. If any disruption or security breach results in a loss or damage to AFG’s data, or inappropriate disclosure of AFG’s confidential information or that of others, it could damage AFG’s reputation, affect its relationships with customers and clients, lead to claims against AFG, result in regulatory action and harm AFG’s business. In addition, AFG may be required to incur significant costs to mitigate the damage caused by any security breach or to protect against future damage.

AFG’s property and casualty reserves may be inadequate, which could have a material adverse effect on AFG’s results of operations.

Liabilities for unpaid losses and loss adjustment expenses do not represent an exact calculation of liability but instead represent management estimates of what the ultimate settlement and administration of claims will cost, supported by actuarial expertise and projection techniques, at a given accounting date. The process of estimating unpaid losses and loss adjustment expense reserves involves a high degree of judgment and is subject to a number of variables. These variables can be affected by both internal and external events, such as: changes in claims handling procedures, adverse changes in loss cost trends (including inflationary pressures on medical costs), economic conditions (including general inflation), legal trends and legislative changes, and varying judgments and viewpoints of the individuals involved in the estimation process, among others. The impact of many of these items on ultimate costs for unpaid losses and loss adjustment expenses is difficult to estimate. Unpaid losses and loss adjustment expense reserve estimation difficulties also differ significantly by product line due to differences in claim complexity, the volume of claims, the potential severity of individual claims, the determination of an occurrence date for a claim and lags in the time between damage, loss or injury and when a claim is actually reported to the insurer. In addition, the historic development of AFG’s liability for unpaid losses and loss adjustment expenses may not necessarily reflect future trends in the development of these amounts. Accordingly, it is not appropriate to extrapolate future redundancies or deficiencies based on historical information. To the extent that reserves are inadequate and are strengthened, AFG’s profitability would be adversely affected because the amount of any such increase would be treated as a charge to earnings in the period in which the deficiency is recognized.

AFG’s results of operations could be adversely impacted by severe weather conditions or other catastrophes, both natural and man-made.

Catastrophes can be caused by unpredictable natural events such as hurricanes, windstorms, severe storms, tornadoes, floods, hailstorms, severe winter weather, earthquakes, explosions and fire, and by man-made events, such as terrorist attacks. While not considered a catastrophe by insurance industry standards, droughts can have a significant adverse impact on AFG’s crop insurance results. In addition, extreme weather events that are linked to rising temperatures, changing global weather patterns and fluctuating rain, snow and sea levels could result in increased occurrence and severity of catastrophes. The extent of gross losses from a catastrophe event is a function of both the total amount of insured exposure in the area affected by the event and the severity of the event, potentially mitigated by any reinsurance coverage purchased by AFG’s insurance subsidiaries. In

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addition, certain catastrophes could result in both property and non-property claims from the same event. A severe catastrophe or a series of catastrophes could result in losses exceeding AFG’s reinsurance protection and may have a material adverse impact on its results of operations or financial condition.

Volatility in crop prices, as a result of weather conditions or otherwise, could adversely impact AFG’s results of operations.

Weather conditions, including too much moisture (flooding or excessive rain) or not enough moisture (droughts), and the level of crop prices in the commodities market heavily impact AFG’s crop insurance business. These factors are inherently unpredictable and could result in significant volatility in the results of the crop insurance business from one year to the next. AFG’s crop results could also be negatively impacted by pests and plant disease. A large decline in the commodity prices of one or more of the major crops that AFG insures could have a material adverse effect on AFG’s results of operations or financial condition.

AFG’s international operations exposes it to investment, political and economic risks, including foreign currency and credit risk.

AFG’s international operations expose AFG to a number of additional risks. These risks include restrictions such as price controls, capital controls, currency exchange limits, ownership limits and other restrictive or anti-competitive governmental actions or requirements, which could have an adverse effect on AFG’s business and reputation. AFG’s business activities outside the United States may also be subject to political and economic risks, including foreign currency and credit risk.

AFG’s business activities outside the United States subject AFG to additional domestic and foreign laws and regulations, including the Foreign Corrupt Practices Act, the UK Bribery Act and similar laws in other countries that prohibit the making of improper payments to foreign officials. Although AFG has policies and controls in place that are designed to ensure compliance with these laws, if those controls are ineffective and an employee or intermediary fails to comply with applicable laws and regulations, AFG could suffer civil and criminal penalties and AFG’s business and reputation could be adversely affected. Some countries have laws and regulations that lack clarity and, even with local expertise and effective controls, it can be difficult to determine the exact requirements of, and potential liability under, the local laws. Failure to comply with local laws in a particular market may result in substantial liability and could have a significant and negative effect not only on AFG’s business in that market but also on AFG’s reputation generally.

Exposure to asbestos or environmental claims could materially adversely affect AFG’s results of operations and financial condition.

AFG has asbestos and environmental (“A&E”) exposures arising from its insurance operations and former railroad and manufacturing operations. Uncertainties surrounding the final resolution of these asbestos and environmental liabilities continue, and it is difficult to estimate AFG’s ultimate exposure to such liabilities and related litigation. Establishing A&E liabilities is subject to uncertainties that are significantly greater than those presented by other types of liabilities. Uncertainties include the long delays between exposure and manifestation of any bodily injury or property damage, difficulty in identifying the source of the asbestos or environmental contamination, long reporting delays, the risks inherent in complex litigation and difficulty in properly allocating liability for the asbestos or environmental damage. As a result, A&E liabilities are subject to revision as new information becomes available and as claims are made and develop. Claimants continue to assert new and novel theories of recovery, and from time to time, there is proposed state and federal legislation regarding A&E liability, which would also affect AFG’s exposure. If AFG has not established adequate reserves to cover future claims, AFG’s results of operations and financial condition could be materially adversely affected.

Ineffective use of options in the fixed-indexed and variable-indexed annuity business could affect AFG’s results of operations.

AFG’s fixed-indexed and variable-indexed annuities provide policyholders with a crediting rate tied, in part, to the performance of an existing stock market or other financial index. AFG attempts to mitigate the risk in the index-based component of these products through the purchase and sale of call and put options on the appropriate index. AFG’s strategy is designed so that the change in the fair value of the options will generally offset the economic change in the liabilities from the index participation. However, this strategy may not be fully effective at mitigating risk exposures in all market conditions or against all types of risk. In addition, AFG’s use of options may not be sufficient to completely hedge the associated risks or AFG may decide not to hedge all of the risks to which it is exposed.

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Variations from the actuarial assumptions used to establish certain assets and liabilities in AFG’s annuity business could adversely affect AFG’s results of operations.

The earnings on AFG’s annuity products depend significantly upon the extent to which actual experience is consistent with the assumptions used in setting reserves and establishing and amortizing deferred policy acquisition costs. These assumptions relate to investment yields (and spreads over fixed annuity crediting rates), benefit utilization rates, equity market performance, the cost of options used in the fixed-indexed (including variable-indexed) annuity business, mortality, surrenders, annuitizations and other withdrawals. Developing such assumptions is complex and involves information obtained from company-specific and industry-wide data, as well as general economic information. These assumptions, and therefore AFG’s results of operations, could be negatively impacted by changes in any of the factors listed above.

The modification or elimination of the London Inter-Bank Offering Rate may adversely affect AFG’s results of operations.

The modification or elimination of the London Inter-Bank Offered Rate (“LIBOR”), a long-standing benchmark interest rate for floating-rate financial contracts, may adversely affect the interest rates on and fair value of AFG’s floating rate investments, interest rate swaps, Federal Home Loan Bank advances and any other assets or liabilities whose value is tied to LIBOR. In addition, the majority of the assets and liabilities of the collateralized loan obligations that AFG manages and consolidates are tied to LIBOR. On July 27, 2017, the U.K. Financial Conduct Authority announced that it will no longer persuade or compel banks to submit rates for the calculation of LIBOR after 2021. However, it remains unclear if, how and in what form, LIBOR will continue to exist. Proposals for alternative reference rates for dollars and other currencies have been announced or have already begun publication. Markets are slowly developing in response to these new rates but questions around liquidity in these alternative reference rates and how to appropriately adjust these alternative reference rates to eliminate any economic value transfer at the time of transition persist. At this time, AFG cannot predict the overall effect of the modification or elimination of LIBOR or the establishment of alternative benchmark rates.

Changes to existing accounting standards could adversely impact AFG’s reported results of operations.

As a U.S.-based SEC registrant, AFG prepares its financial statements in accordance with GAAP, as promulgated by the Financial Accounting Standards Board, subject to the accounting-related rules and interpretations of the SEC. Changes in accounting standards, particularly those that specifically apply to insurance company operations, may impact AFG’s reported financial results and could cause increased volatility in reported earnings, resulting in other adverse impacts on AFG’s ratings and cost of capital, and decrease the understandability of AFG’s financial results as well as the comparability of AFG’s reported results with other insurers.

As a holding company, AFG is dependent on the operations of its insurance company subsidiaries to meet its obligations and pay future dividends.

AFG is a holding company and a legal entity separate and distinct from its insurance company subsidiaries. As a holding company without significant operations of its own, AFG’s principal sources of funds are dividends and other distributions from its insurance company subsidiaries. State insurance laws differ from state to state but, absent advance regulatory approval, restrict the maximum amount of dividends that may be paid by an insurer to its shareholders in any twelve-month period. AFG’s rights to participate in any distribution of assets of its insurance company subsidiaries are subject to prior claims of policyholders and creditors (except to the extent that its rights, if any, as a creditor are recognized). Consequently, AFG’s ability to pay its debts, expenses and dividends to its shareholders may be limited.

Statutory capital requirements set by the NAIC and the various state insurance regulatory bodies establish regulations that provide minimum capitalization requirements based on risk-based capital (“RBC”) ratios for insurance companies. Statutory surplus and RBC ratios may change in a given year based on a number of factors, including statutory earnings/losses, reserve changes, excess capital held to support growth, equity market and interest rate changes, the value of investment securities, and changes to the RBC formulas. Increases in the amount of capital or reserves that AFG’s larger insurance subsidiaries are required to hold could reduce the amount of future dividends such subsidiaries are able to distribute to the holding company or require capital contributions. Any reduction in the RBC ratios of AFG’s insurance subsidiaries could also adversely affect their financial strength ratings as determined by rating agencies.

Adverse developments in the financial markets may limit AFG’s access to capital.

Financial markets in the U.S. and elsewhere can experience extreme volatility, which exerts downward pressure on stock prices and limits access to the equity and debt markets for certain issuers, including AFG. AFG can borrow up to $500 million under

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its revolving credit facility, which expires in June 2021. In addition, AFG’s access to funds through this facility is dependent on the ability of its banks to meet their funding commitments. There were no borrowings outstanding under AFG’s bank credit line or any other parent company short-term borrowing arrangements during 2018. If AFG cannot obtain adequate capital or sources of credit on favorable terms, or at all, its business, operating results and financial condition would be adversely affected.

AFG may suffer losses from litigation, which could materially and adversely affect AFG’s financial condition and business operations.

AFG, primarily in its property and casualty insurance operations and historical operations, is involved in litigation. Litigation by nature is unpredictable, and the outcome of any case is uncertain and could result in liabilities that vary from the amounts AFG has currently recorded. Pervasive or significant changes in the judicial environment relating to matters such as trends in the size of jury awards, developments in the law relating to the liability of insurers or tort defendants, and rulings concerning the availability or amount of certain types of damages could cause AFG’s ultimate liabilities to change from current expectations. Changes in federal or state tort litigation laws or other applicable law could have a similar effect. It is not possible to predict changes in the judicial and legislative environment, including in connection with asbestos and environmental claims. AFG’s business, financial condition, results of operations and liquidity could also be adversely affected if judicial or legislative developments cause AFG’s ultimate liabilities to increase from current expectations.

Certain shareholders exercise substantial control over AFG’s affairs, which may impede a change of control transaction.

Carl H. Lindner III and S. Craig Lindner are each Co-Chief Executive Officers and Directors of AFG. Together, Carl H. Lindner III and S. Craig Lindner beneficially own 10.9% of AFG’s outstanding Common Stock as of February 1, 2019. Other members of the Lindner family own, directly or through trusts, a significant number of additional shares of AFG Common Stock. As a result, the Lindner family has the ability to exercise significant influence over AFG’s management, including over matters requiring shareholder approval. Such concentrated ownership could prevent an acquisition of AFG at a price which other shareholders may find attractive.

The price of AFG Common Stock may fluctuate significantly, which may make it difficult for holders to resell common stock when they want or at a price they find attractive.

The price of AFG’s Common Stock, which is listed on the NYSE, constantly changes. During 2018, AFG’s Common Stock traded at prices ranging between $84.18 and $121.69. AFG’s Common Stock price can fluctuate as a result of a variety of factors, many of which are beyond its control. These factors include but are not limited to:

• actual or anticipated variations in quarterly operating results;

• actual or anticipated changes in the dividends paid on AFG Common Stock;

• rating agency actions;

• recommendations by securities analysts;

• significant acquisitions or business combinations, strategic partnerships, joint ventures or capital commitments by or involving AFG or its competitors;

• operating and stock price performance of other companies that investors deem comparable to AFG;

• news reports relating to trends, concerns and other issues in AFG’s lines of business;

• general economic conditions, including volatility in the financial markets; and

• geopolitical conditions such as acts or threats of terrorism or military conflicts.

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ITEM 2

Properties

AFG and its insurance subsidiaries lease the majority of their office and storage facilities in numerous cities throughout the United States and internationally, including the Company’s headquarters in Cincinnati, Ohio. Subsidiaries of AFG own several other buildings in downtown Cincinnati. AFG and its affiliates occupy approximately half of the aggregate 670,000 square feet of commercial and office space in these buildings. A property and casualty insurance subsidiary occupies approximately 93% of the 281,000 square feet of rentable office space on 17.5 acres of land that it owns in Richfield, Ohio. See Item 1 — Business — “Other Operations” for a discussion of AFG’s other commercial real estate operations.

ITEM 3

Legal Proceedings

AFG and its subsidiaries are involved in litigation from time to time, generally arising in the ordinary course of business. This litigation may include, but is not limited to, general commercial disputes, lawsuits brought by policyholders, employment matters, reinsurance collection matters and actions challenging certain business practices of insurance subsidiaries. Except for the following, management believes that none of the litigation meets the threshold for disclosure under this Item.

AFG’s insurance company subsidiaries and its 100%-owned subsidiary, American Premier Underwriters (including its subsidiaries, “American Premier”), are parties to litigation and receive claims alleging injuries and damages from asbestos, environmental and other substances and workplace hazards and have established loss accruals for such potential liabilities. None of such litigation or claims is individually material to AFG; however, the ultimate loss for these claims may vary materially from amounts currently recorded as the conditions surrounding resolution of these claims continue to change.

American Premier is a party or named as a potentially responsible party in a number of proceedings and claims by regulatory agencies and private parties under various environmental protection laws, including the Comprehensive Environmental Response, Compensation and Liability Act, seeking to impose responsibility on American Premier for hazardous waste or discharge remediation costs at certain railroad sites formerly owned by its predecessor, Penn Central Transportation Company (“PCTC”), and at certain other sites where hazardous waste or discharge allegedly generated by PCTC’s railroad operations and American Premier’s former manufacturing operations is present. It is difficult to estimate American Premier’s liability for remediation costs at these sites for a number of reasons, including the number and financial resources of other potentially responsible parties involved at a given site, the varying availability of evidence by which to allocate responsibility among such parties, the wide range of costs for possible remediation alternatives, changing technology and the period of time over which these matters develop. Nevertheless, American Premier believes that its accruals for potential environmental liabilities are adequate to cover the probable amount of such liabilities, based on American Premier’s estimates of remediation costs and related expenses and its estimates of the portions of such costs that will be borne by other parties. Such estimates are based on information currently available to American Premier and are subject to future change as additional information becomes available.

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PART II

ITEM 5

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

AFG Common Stock is listed and traded on the New York Stock Exchange under the symbol AFG. There were approximately 5,500 shareholders of record of AFG Common Stock at February 1, 2019.

Issuer Purchases of Equity Securities   AFG repurchased shares of its Common Stock during 2018 as follows:

	Total Number of Shares Purchased	Average Price Paid Per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Number of Shares that May Yet be Purchased Under the Plans or Programs (a)
First Nine Months	—	$	—	—	4,132,838
Fourth Quarter:
October	12,500	99.48		12,500	4,120,338
November	—	—		—	4,120,338
December	53,089	91.95		53,089	3,000,000
Total	65,589	$	93.38	65,589

(a) Represents the remaining shares that may be repurchased under the Plans authorized by AFG’s Board of Directors in December 2014 and February 2016. On December 31, 2018, 1,067,249 shares that were authorized in December 2014 expired. In February 2019, AFG’s Board of Directors authorized the repurchase of two million additional shares.

In addition, AFG acquired 26,520 shares of its Common Stock (at an average of $111.91 per share) in the first nine months of 2018 in connection with its stock incentive plans.

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Stock Performance Graph   The following graph compares performance of AFG Common Stock during the five year period from December 31, 2013 through December 31, 2018 with the performance of (i) the S&P 500 Composite Stock Index (“S&P 500 Index”), (ii) the S&P 500 Property & Casualty Insurance Index and (iii) the S&P 500 Life & Health Index. The graph assumes that an initial investment of $100 was made on December 31, 2013 and all dividends were reinvested. The stock price performance presented below is not intended to be indicative of future price performance.

	As of December 31,
	2013		2014		2015		2016		2017		2018
AFG	$	100	$	109	$	133	$	167	$	216	$	188
S&P 500 Index	100		114		115		129		157		150
S&P 500 P&C Index (b)	100		116		127		147		180		171
S&P 500 Life & Health Index (c)	100		102		96		119		139		110

(a) Cumulative total shareholder return measures the performance of a company’s stock (or an index) over time and is calculated as the change in the stock price plus cumulative dividends (assuming dividends are reinvested) over a specific period of time divided by the stock price at the beginning of the time period.

(b) The S&P 500 Property & Casualty Insurance Index included the following companies at December 31, 2018 (weighted by market capitalization): The Allstate Corporation, Chubb Limited, Cincinnati Financial Corporation, The Progressive Corporation and The Travelers Companies, Inc.

(c) The S&P 500 Life & Health Insurance Index included the following companies at December 31, 2018 (weighted by market capitalization): Aflac Incorporated, Brighthouse Financial Inc., Lincoln National Corporation, MetLife Inc., Principal Financial Group, Inc., Prudential Financial, Inc., Torchmark Corporation and Unum Group.

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ITEM 6

Selected Financial Data

The following table sets forth certain data for the periods indicated (dollars in millions, except per share data).

	2018			2017		2016		2015		2014
Earnings Statement Data:
Total revenues	$	7,150		$	6,865	$	6,498	$	6,145	$	5,733
Earnings before income taxes	639			724		787		565		626
Net earnings, including noncontrolling interests	517			477		668		370		406
Less: Net earnings (loss) attributable to noncontrolling interests	(13		)	2		19		18		(46		)
Net earnings attributable to shareholders	530			475		649		352		452
Earnings attributable to shareholders per Common Share:
Basic — GAAP	$	5.95		$	5.40	$	7.47	$	4.02	$	5.07
Diluted — GAAP	5.85			5.28		7.33		3.94		4.97
Core net operating earnings per share (diluted) (a)	8.40			6.55		6.03		5.44		4.82
Cash dividends paid per share of Common Stock (b)	$	4.45		$	4.7875	$	2.1525	$	2.03	$	1.91
Ratio of earnings to fixed charges including annuity benefits (c)	1.54			1.72		1.85		1.66		1.90
Balance Sheet Data:
Cash and investments	$	48,498		$	46,048	$	41,433	$	37,736	$	36,210
Total assets	63,456			60,658		55,072		49,837		47,513
Property and casualty insurance reserves:
Unpaid losses and loss adjustment expenses	9,741			9,678		8,563		8,127		7,872
Unearned premiums	2,595			2,410		2,171		2,060		1,956
Annuity benefits accumulated	36,616			33,316		29,907		26,622		23,764
Life, accident and health reserves	635			658		691		705		2,175
Long-term debt	1,302			1,301		1,283		998		1,039
Shareholders’ equity	4,970			5,330		4,916		4,592		4,879
Less:
Net unrealized gains related to fixed maturities (d)	72			606		299		279		604
Appropriated retained earnings	—			—		—		—		(2		)
Adjusted shareholders’ equity (e)	4,898			4,724		4,617		4,313		4,277
Book value per share	$	55.66		$	60.38	$	56.55	$	52.50	$	55.62
Adjusted book value per share (e)	54.86			53.51		53.11		49.32		48.76

(a) AFG’s net earnings per share (diluted), determined in accordance with GAAP, includes certain items that may not be indicative of its ongoing core operations. AFG believes that its core net operating earnings per share provides management, financial analysts, rating agencies and investors with an understanding of the results from the ongoing operations of the Company by excluding the impact of net realized investment gains and losses and other items that are not necessarily indicative of operating trends. AFG’s management uses core net operating earnings to evaluate financial performance against historical results because it believes this provides a more comparable measure of its continuing business. Core net operating earnings is also used by AFG’s management as a basis for strategic planning and forecasting. Core net operating earnings per share (diluted) is a non-GAAP financial measure. See Item 7 — Management’s Discussion and Analysis — “Results of Operations — General” for additional details, including a reconciliation of core net operating earnings per share (diluted) to net earnings available to shareholders (diluted) computed in accordance with GAAP.

(b) AFG increased its quarterly dividend in October of each of the last five years as follows: increased to $0.40 per share in 2018, $0.35 per share in 2017, $0.3125 per share in 2016, $0.28 per share in 2015, and $0.25 per share in 2014. In addition, AFG paid special cash dividends of $3.00 per share in 2018, $3.50 per share in 2017 and $1.00 per share in 2016, 2015 and 2014.

(c) Fixed charges are computed on a “total enterprise” basis. For purposes of calculating the ratios, “earnings” have been computed by adding to pretax earnings the fixed charges and the noncontrolling interests in earnings of subsidiaries having fixed charges and the undistributed equity in earnings or losses of investees. Fixed charges include interest (including annuity benefits as indicated), amortization of debt premium/discount and expense, preferred dividend and distribution requirements of subsidiaries and a portion of rental expense deemed to be representative of the interest factor. The ratio of earnings to fixed charges excluding annuity benefits was 7.86, 7.67, 8.62, 6.58 and 7.95 for 2018, 2017, 2016, 2015 and 2014, respectively. Although the ratio of earnings to fixed charges excluding annuity benefits is not required or encouraged to be disclosed under Securities and

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Exchange Commission rules, some investors and lenders may not consider interest credited to annuity policyholders’ accounts a borrowing cost for an insurance company, and accordingly, believe this ratio is meaningful.

(d) Net unrealized gains related to fixed maturities, which includes net unrealized gains (losses) on cash flow hedges, is part of accumulated other comprehensive income and is shown net of related adjustments to deferred policy acquisition costs and certain liabilities in the annuity, long-term care and life businesses.

(e) Adjusted shareholders’ equity and adjusted book value per share exclude appropriated retained earnings and net unrealized gains related to fixed maturity securities. Management believes that investors find a measurement of shareholders’ equity excluding these items to be meaningful as (i) the unrealized gains related to fixed maturities fluctuates with changes in interest rates in a way that is primarily only meaningful to AFG if it sells those investments and (ii) appropriated retained earnings represented amounts that will ultimately inure to the debt holders of the collateralized loan obligations managed by AFG as reported under accounting guidance that was no longer applicable beginning in 2016.

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ITEM 7

Management’s Discussion and Analysis of Financial Condition and Results of Operations

INDEX TO MD&A
	Page		Page
General	27	Results of Operations	49
Overview	27	General	49
Critical Accounting Policies	28	Results of Operations — Fourth Quarter	51
Liquidity and Capital Resources	28	Segmented Statement of Earnings	51
Ratios	28	Property and Casualty Insurance	52
Condensed Consolidated Cash Flows	29	Annuity	62
Parent and Subsidiary Liquidity	30	Holding Company, Other and Unallocated	70
Condensed Parent Only Cash Flows	32	Results of Operations — Full Year	74
Contractual Obligations	33	Segmented Statement of Earnings	74
Off-Balance Sheet Arrangements	33	Property and Casualty Insurance	76
Investments	33	Annuity	87
Uncertainties	37	Holding Company, Other and Unallocated	96
Managed Investment Entities	44	Recent and Pending Accounting Standards	99

GENERAL

Following is a discussion and analysis of the financial statements and other statistical data that management believes will enhance the understanding of AFG’s financial condition and results of operations. This discussion should be read in conjunction with the financial statements beginning on page F-1.

OVERVIEW

Financial Condition

AFG is organized as a holding company with almost all of its operations being conducted by subsidiaries. AFG, however, has continuing cash needs for administrative expenses, the payment of principal and interest on borrowings, shareholder dividends, and taxes. Therefore, certain analyses are most meaningfully presented on a parent only basis while others are best done on a total enterprise basis. In addition, because most of its businesses are financial in nature, AFG does not prepare its consolidated financial statements using a current-noncurrent format. Consequently, certain traditional ratios and financial analysis tests are not meaningful.

At December 31, 2018, AFG (parent) held approximately $223 million in cash and securities and had $500 million available under a bank line of credit, which expires in June 2021.

Results of Operations

Through the operations of its subsidiaries, AFG is engaged primarily in property and casualty insurance, focusing on specialized commercial products for businesses, and in the sale of traditional fixed, fixed-indexed and variable-indexed annuities in the retail, financial institutions, broker-dealer and registered investment advisor markets.

AFG reported a fourth quarter 2018 net loss attributable to shareholders of $29 million ($0.33 per share, diluted) compared to net earnings attributable to shareholders of $166 million ($1.84 per share, diluted) in the fourth quarter of 2017, reflecting:

• net realized losses on securities in the fourth quarter of 2018 compared to net realized gains on securities in the fourth quarter of 2017. The 2018 period reflects the change in the fair value of equity securities that are required to be carried at fair value through net earnings under new accounting guidance adopted on January 1, 2018,

• lower earnings in the annuity segment,

• lower underwriting profit in the property and casualty insurance segment,

• higher net investment income in the property and casualty insurance segment,

• lower interest charges on borrowed money,

• lower holding company expenses,

• a lower corporate income tax rate,

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• the fourth quarter 2017 loss on retirement of debt,

• the fourth quarter 2017 tax benefit related to the Neon Underwriting Ltd. (“Neon”) restructuring, and

• the fourth quarter 2017 tax expense related to the change in the U.S. corporate tax rate.

Full year 2018 net earnings attributable to AFG’s shareholders were $530 million ($5.85 per share, diluted) compared to $475 million ($5.28 per share, diluted) in 2017, reflecting:

• higher underwriting profit in the property and casualty insurance segment due primarily to lower catastrophe losses and lower special charges to increase asbestos and environmental reserves,

• net realized losses on securities in 2018 compared to net realized gains on securities in 2017,

• higher net investment income in the property and casualty insurance segment,

• lower interest charges on borrowed money,

• lower holding company expenses,

• a lower corporate income tax rate,

• lower earnings in the annuity segment,

• income from the sale of real estate in 2017,

• the 2017 loss on retirement of debt,

• the fourth quarter 2017 tax benefit related to the Neon restructuring, and

• the fourth quarter 2017 tax expense related to the change in the U.S. corporate tax rate.

CRITICAL ACCOUNTING POLICIES

Significant accounting policies are summarized in Note A — “Accounting Policies” to the financial statements. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that can have a significant effect on amounts reported in the financial statements. As more information becomes known, these estimates and assumptions change and, thus, impact amounts reported in the future. The areas where management believes the degree of judgment required to determine amounts recorded in the financial statements is most significant are as follows:

• the establishment of insurance reserves, especially asbestos and environmental-related reserves,

• the recoverability of reinsurance,

• the recoverability of deferred acquisition costs,

• the measurement of the derivatives embedded in fixed-indexed and variable-indexed annuity liabilities,

• the establishment of asbestos and environmental reserves of former railroad and manufacturing operations, and

• the valuation of investments, including the determination of other-than-temporary impairments.

See “Liquidity and Capital Resources — Uncertainties” for a discussion of insurance reserves, recoverables from reinsurers, indexed annuity embedded derivatives and contingencies related to American Premier’s former operations and “Liquidity and Capital Resources — Investments” for a discussion of impairments on investments. Deferred policy acquisition costs (“DPAC”) and certain liabilities related to annuities are amortized in relation to the present value of expected gross profits on the policies. Assumptions considered in determining expected gross profits involve significant judgment and include management’s estimates of interest rates and investment spreads, surrenders, annuitizations, renewal premiums and mortality. Should actual experience require management to change its assumptions (commonly referred to as “unlocking”), a charge or credit would be recorded to adjust DPAC or annuity liabilities to the levels they would have been if the new assumptions had been used from the inception date of each policy.

LIQUIDITY AND CAPITAL RESOURCES

Ratios   AFG’s debt to total capital ratio on a consolidated basis is shown below (dollars in millions). Management intends to maintain the ratio of debt to capital at or below 25% and intends to maintain the capital of its significant insurance subsidiaries at or above levels currently indicated by rating agencies as appropriate for the current ratings.

	December 31,
	2018			2017
Principal amount of long-term debt	$	1,318		$	1,318
Total capital	6,218			6,046
Ratio of debt to total capital:
Including subordinated debt	21.2		%	21.8		%
Excluding subordinated debt	16.4		%	16.8		%

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The ratio of debt to total capital is a non-GAAP measure that management believes is useful for investors, analysts and independent ratings agencies to evaluate AFG’s financial strength and liquidity and to provide insight into how AFG finances its operations. In addition, maintaining a ratio of debt, excluding subordinated debt and debt secured by real estate (if any), to total capital of 35% or lower is a financial covenant in AFG’s bank credit facility. The ratio is calculated by dividing the principal amount of AFG’s long-term debt by its total capital, which includes long-term debt, noncontrolling interests and shareholders’ equity (excluding unrealized gains (losses) related to fixed maturity investments).

AFG’s ratio of earnings to fixed charges, including annuity benefits as a fixed charge, was 1.54 for the year ended December 31, 2018. Excluding annuity benefits, this ratio was 7.86. The ratio excluding annuity benefits is presented because interest credited to annuity policyholder accounts is not always considered a borrowing cost for an insurance company.

The NAIC’s model law for risk based capital (“RBC”) applies to both life and property and casualty companies. RBC formulas determine the amount of capital that an insurance company needs so that it has an acceptable expectation of not becoming financially impaired. At December 31, 2018, the capital ratios of all AFG insurance companies exceeded the RBC requirements.

Condensed Consolidated Cash FlowsAFG’s principal sources of cash include insurance premiums, income from its investment portfolio and proceeds from the maturities, redemptions and sales of investments. Insurance premiums in excess of acquisition expenses and operating costs are invested until they are needed to meet policyholder obligations or made available to the parent company through dividends to cover debt obligations and corporate expenses, and to provide returns to shareholders through share repurchases and dividends. Cash flows from operating, investing and financing activities as detailed in AFG’s Consolidated Statement of Cash Flows are shown below (in millions):

	Year ended December 31,
	2018			2017			2016
Net cash provided by operating activities	$	2,083		$	1,804		$	1,150
Net cash used in investing activities	(5,350		)	(3,292		)	(2,981		)
Net cash provided by financing activities	2,444			1,719			2,718
Net change in cash and cash equivalents	$	(823	)	$	231		$	887

Net Cash Provided by Operating Activities   AFG’s property and casualty insurance operations typically produce positive net operating cash flows as premiums collected and investment income exceed policy acquisition costs, claims payments and operating expenses. AFG’s net cash provided by operating activities is impacted by the level and timing of property and casualty premiums, claim and expense payments and recoveries from reinsurers. AFG’s annuity operations typically produce positive net operating cash flows as investment income exceeds acquisition costs and operating expenses. Interest credited on annuity policyholder funds is a non-cash increase in AFG’s annuity benefits accumulated liability and annuity premiums, benefits and withdrawals are considered financing activities due to the deposit-type nature of annuities. Cash flows provided by operating activities also include the activity of AFG’s managed investment entities (collateralized loan obligations) other than those activities included in investing or financing activities. The changes in the assets and liabilities of the managed investment entities included in operating activities increased cash flows from operating activities by $148 million in 2018, increased cash flows from operating activities by $60 million in 2017 and reduced cash flows from operating activities by $279 million in 2016, accounting for a $88 millionincrease in cash flows from operating activities in 2018 compared to 2017 and a $339 millionincrease in cash flows from operating activities in 2017 compared to 2016. As discussed in Note A — “Accounting Policies — Managed Investment Entities” to the financial statements, AFG has no right to use the CLO assets and no obligation to pay the CLO liabilities and such assets and liabilities are shown separately in AFG’s Balance Sheet. Excluding the impact of the managed investment entities, net cash provided by operating activities was $1.94 billion, $1.74 billion and $1.43 billion in 2018, 2017 and 2016, respectively.

Net Cash Used in Investing Activities   AFG’s investing activities consist primarily of the investment of funds provided by its property and casualty and annuity businesses. Net cash used in investing activities was $5.35 billion in 2018 compared to $3.29 billion in 2017, an increase of $2.06 billion. As discussed below (under net cash provided by financing activities), AFG’s annuity group had net cash flows from annuity policyholders of $2.76 billion in 2018 and $1.99 billion in 2017, which is the primary source of AFG’s cash used in investing activities. In addition, AFG’s cash on hand decreased by $823 million during 2018 as AFG invested a large portion of its cash on hand at December 31, 2017. In addition to the investment of funds provided by the insurance operations, investing activities also include the purchase and disposal of managed investment entity investments, which are presented separately in AFG’s Balance Sheet. Net investment activity in the managed investment entities was a $169 millionuse of cash in 2018 compared to a $205 millionuse of cash in 2017, accounting for a $36 million

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decrease in net cash used in investing activities in 2018 compared to 2017. See Note A — “Accounting Policies — Managed Investment Entities” and Note H — “Managed Investment Entities” to the financial statements.

Net cash used in investing activities was $3.29 billion in 2017 compared to $2.98 billion in 2016, an increase of $311 million. Purchases of fixed maturities and equity securities exceeded maturities, redemptions and sales by $2.95 billion in 2017 compared to $2.04 billion in 2016, accounting for a $912 million increase in cash used in investing activities in 2017 compared to 2016. Settlements of equity index call options exceeded purchases by $285 million in 2017 compared to purchases exceeding settlements by $110 million in 2016, accounting for a $395 million decrease in cash used in investing activities. In general, purchases of equity index call options have increased due to growth in the fixed-indexed annuity business while proceeds from settlements of equity options are impacted by the performance of the stock market during the term of the options. Net investment activity in the managed investment entities was a $205 millionuse of cash in 2017 compared to a $364 millionuse of cash in 2016, accounting for a $159 million decrease in net cash used in investing activities in 2017 compared to 2016.

Net Cash Provided by Financing Activities   AFG’s financing activities consist primarily of transactions with annuity policyholders, issuances and retirements of long-term debt, repurchases of common stock and dividend payments. Net cash provided by financing activities was $2.44 billion in 2018 compared to $1.72 billion in 2017, an increase of $725 million. Annuity receipts exceeded annuity surrenders, benefits, withdrawals and transfers by $2.76 billion in 2018 compared to $1.99 billion in 2017, resulting in a $773 millionincrease in net cash provided by financing activities in 2018 compared to 2017. During 2018, AFG had no additional long-term borrowings or repayments as compared to $712 million of additional long-term debt borrowings and $745 million of debt repayments in 2017. During 2018, AFG repurchased $6 million of its Common Stock compared to no shares in 2017. In addition to its regular quarterly cash dividends, AFG paid special cash dividends of $3.00 per share and $3.50 per share of American Financial Group Common Stock in 2018 and 2017, respectively, which resulted in total cash dividends of $394 million in 2018 compared to $417 million in 2017. Financing activities also include issuances and retirements of managed investment entity liabilities, which are nonrecourse to AFG and presented separately in AFG’s Balance Sheet. Issuances of managed investment entity liabilities exceeded retirements by $48 million in 2018 compared to $146 million in 2017, accounting for a $98 milliondecrease in net cash provided by financing activities in 2018 compared to 2017. See Note A — “Accounting Policies — Managed Investment Entities” and Note H — “Managed Investment Entities” to the financial statements.

Net cash provided by financing activities was $1.72 billion in 2017 compared to $2.72 billion in 2016, a decrease of $999 million. Annuity receipts exceeded annuity surrenders, benefits, withdrawals and transfers by $1.99 billion in 2017 compared to $2.35 billion in 2016, resulting in a $362 milliondecrease in net cash provided by financing activities in 2017 compared to 2016. In 2017, AFG issued $590 million of 4.50% Senior Notes due in 2047 and $125 million of 3.50% Senior Notes due in 2026, the net proceeds of which contributed $712 million to net cash provided by financing activities in 2017 compared to net proceeds from additional long-term borrowings of $302 million in 2016, which accounted for a $410 millionincrease in cash provided by financing activities in 2017 compared to 2016. Redemptions of long-term debt were a $745 millionuse of cash in 2017 and an $18 millionuse of cash in 2016, which accounted for a $727 million decrease in net cash provided by financing activities in 2017 compared to 2016. There were no shares of AFG Common Stock repurchased in 2017 compared to $133 million repurchased in 2016. In addition to its regular quarterly cash dividends, AFG paid special cash dividends of $3.50 per share and $1.00 per share of American Financial Group Common Stock in 2017 and 2016, respectively, which resulted in total cash dividends of $417 million in 2017 compared to $185 million in 2016. Additionally, in 2016, $315 million was used to fund the acquisition of the noncontrolling interest in National Interstate Corporation. Issuances of managed investment entity liabilities exceeded retirements by $146 million in 2017 compared to $693 million in 2016, accounting for a $547 milliondecrease in net cash provided by financing activities in 2017 compared to 2016.

Parent and Subsidiary Liquidity

Parent Holding Company Liquidity   Management believes AFG has sufficient resources to meet its liquidity requirements. If funds generated from operations, including dividends, tax payments and borrowings from subsidiaries, are insufficient to meet fixed charges in any period, AFG would be required to utilize parent company cash and marketable securities or to generate cash through borrowings, sales of other assets, or similar transactions.

AFG can borrow up to $500 million under its revolving credit facility which expires in June 2021. Amounts borrowed under this agreement bear interest at rates ranging from 1.00% to 1.875% (currently 1.375%) over LIBOR based on AFG’s credit rating. There were no borrowings under this agreement, or under any other parent company short-term borrowing arrangements, during 2018.

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In 2018, AFG paid special cash dividends of $3.00 per share of AFG Common Stock ($1.50 per share in May and November) totaling approximately $267 million and repurchased 65,589 shares of its Common Stock for $6 million.

In June 2017, AFG issued $350 million of 4.50% Senior Notes due in June 2047. Net proceeds from the offering were used to redeem AFG’s $230 million outstanding principal amount of 6-3/8% Senior Notes due in June 2042, at par value in June 2017 and AFG’s $125 million outstanding principal amount of 5-3/4% Senior Notes due in August 2042 at par value in August 2017.

In November 2017, AFG issued an additional $240 million of 4.50% Senior Notes due in 2047 and $125 million of 3.50% Senior Notes due in 2026. The net proceeds of the offering were used to redeem AFG’s $350 million outstanding principal amount of 9-7/8% Senior Notes due in June 2019 for $388 million (including a make-whole premium of $38 million) in December 2017.

In 2017, AFG paid special cash dividends of $3.50 per share of AFG Common Stock ($1.50 per share in May and $2.00 per share in November) totaling approximately $308 million.

In November 2016, AFG acquired the 49% of National Interstate Corporation (“NATL”) not previously owned by AFG’s wholly-owned subsidiary, Great American Insurance Company (“GAI”) for $315 million ($32.00 per share) in cash in a merger transaction. In addition, NATL paid a one-time special cash dividend of $0.50 per share to its shareholders immediately prior to the merger closing ($5 million was paid to noncontrolling shareholders). See Note B — “Acquisitions and Sale of Businesses” to the financial statements.

In August 2016, AFG issued $300 million of 3.50% Senior Notes due 2026. AFG used the net proceeds from the offering to fund a portion of the acquisition of NATL mentioned above.

During 2016, AFG repurchased 1.9 million shares of its Common Stock for $133 million. In December 2016, AFG paid a special cash dividend of $1.00 per share of AFG Common Stock totaling approximately $87 million.

All debentures and notes issued by AFG are rated investment grade by two nationally recognized rating agencies. Under a currently effective shelf registration statement, AFG can offer additional equity or debt securities. The shelf registration provides AFG with flexibility to access the capital markets from time to time as market and other conditions permit.

Under a tax allocation agreement with AFG, its 80%-owned U.S. subsidiaries generally pay taxes to (or recover taxes from) AFG based on each subsidiary’s contribution to amounts due under AFG’s consolidated tax return.

Subsidiary Liquidity   Great American Life Insurance Company (“GALIC”), a wholly-owned annuity subsidiary, is a member of the Federal Home Loan Bank of Cincinnati (“FHLB”). The FHLB makes advances and provides other banking services to member institutions, which provides the annuity operations with an additional source of liquidity. At December 31, 2018, GALIC had $1.1 billion in outstanding advances from the FHLB (included in annuity benefits accumulated), bearing interest at rates ranging from 0.15% to 0.24% over LIBOR (average rate of 2.68% at December 31, 2018). While these advances must be repaid between 2019 and 2021 ($445 million in 2019, $40 million in 2020 and $611 million in 2021), GALIC has the option to prepay all or a portion of the advances. GALIC has invested the proceeds from the advances in fixed maturity securities with similar expected lives as the advances for the purpose of earning a spread over the interest payments due to the FHLB. At December 31, 2018, GALIC estimated that it had additional borrowing capacity of approximately $300 million from the FHLB.

In the fourth quarter of 2018, GALIC, AFG’s primary annuity subsidiary, entered into a reinsurance treaty with Hannover Life Reassurance Company of America that transfers the risk of certain surrender activity in GALIC’s fixed-indexed annuity business. This treaty meets the statutory risk transfer rules and resulted in a $510 million increase in statutory surplus (through an after-tax reserve credit). The treaty reduces statutory capital and surplus volatility related to GALIC’s fixed-indexed annuity policies from stock market fluctuations, which could impact GALIC’s risk-based capital and the amount of dividends available in future periods. Under GAAP, this transaction does not meet the GAAP insurance risk transfer criteria and did not have a material impact on AFG’s financial statements.

The liquidity requirements of AFG’s insurance subsidiaries relate primarily to the liabilities associated with their products as well as operating costs and expenses, payments of dividends and taxes to AFG and contributions of capital to their subsidiaries. Historically, cash flows from premiums and investment income have generally provided more than sufficient funds to meet these requirements. Funds received in excess of cash requirements are generally invested in additional marketable securities. In addition, the insurance subsidiaries generally hold a significant amount of highly liquid, short-term investments.

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The excess cash flow of AFG’s property and casualty group allows it to extend the duration of its investment portfolio somewhat beyond that of its claim reserves.

In the annuity business, where profitability is largely dependent on earning a spread between invested assets and annuity liabilities, the duration of investments is generally maintained close to that of liabilities. In a rising interest rate environment, significant protection from withdrawals exists in the form of temporary and permanent surrender charges on AFG’s annuity products. With declining rates, AFG receives some protection (from spread compression) due to the ability to lower crediting rates, subject to contractually guaranteed minimum interest rates (“GMIRs”). AFG began selling policies with GMIRs below 2% in 2003; almost all new business since late 2010 has been issued with a 1% GMIR. At December 31, 2018, AFG could reduce the average crediting rate on approximately $28 billion of traditional fixed, fixed-indexed and variable-indexed annuities without guaranteed withdrawal benefits by approximately 119 basis points (on a weighted average basis). Annuity policies are subject to GMIRs at policy issuance. The table below shows the breakdown of annuity reserves by GMIR. The current interest crediting rates on substantially all of AFG’s annuities with a GMIR of 3% or higher are at their minimum.

	% of Reserves
	at December 31,
GMIR	2018	2017	2016
1 — 1.99%	79%	76%	72%
2 — 2.99%	4%	5%	6%
3 — 3.99%	8%	10%	12%
4.00% and above	9%	9%	10%
Annuity benefits accumulated (in millions)	$36,616	$33,316	$29,907

For statutory accounting purposes, equity securities of non-affiliates and equity call and put options used in the fixed-indexed annuity business are generally carried at fair value. At December 31, 2018, AFG’s insurance companies owned publicly traded equity securities with a fair value of $1.76 billion and equity index call and put options with a net fair value of $183 million. Decreases in market prices could adversely affect the insurance group’s capital, potentially impacting the amount of dividends available or necessitating a capital contribution. Conversely, increases in market prices could have a favorable impact on the group’s dividend-paying capability.

AFG believes its insurance subsidiaries maintain sufficient liquidity to pay claims and benefits and operating expenses. In addition, these subsidiaries have sufficient capital to meet commitments in the event of unforeseen events such as reserve deficiencies, inadequate premium rates or reinsurer insolvencies. Nonetheless, changes in statutory accounting rules, significant declines in the fair value of the insurance subsidiaries’ investment portfolios or significant ratings downgrades on these investments, could create a need for additional capital.

Condensed Parent Only Cash Flows   AFG’s parent holding company only condensed cash flows from operating, investing and financing activities are shown below (in millions):

	Year ended December 31,
	2018			2017			2016
Net cash provided by operating activities	$	215		$	578		$	555
Net cash provided by (used in) investing activities	10			(63		)	(560		)
Net cash provided by (used in) financing activities	(366		)	(413		)	13
Net change in cash and cash equivalents	$	(141	)	$	102		$	8

Parent Net Cash Provided by Operating Activities   Parent holding company cash flows from operating activities consist primarily of dividends and tax payments received from AFG’s insurance subsidiaries, reduced by tax payments to the IRS and holding company interest and other expenses. Parent holding company net cash provided by operating activities was $215 million in 2018 compared to $578 million in 2017 and $555 million in 2016. The $363 milliondecrease in net cash provided by operating activities in 2018 as compared to 2017 was due to lower dividends received from subsidiaries in 2018 as compared to 2017. The $23 millionincrease in net cash provided by operating activities in 2017 as compared to 2016 was due to lower taxes paid, partially offset by lower dividends received from subsidiaries for those comparable periods.

Parent Net Cash Provided by (Used in) Investing Activities   Parent holding company investing activities consist of capital contributions to and returns of capital from subsidiaries and, to a much lesser extent, parent company investment activity. Parent holding company net cash provided by investing activities was $10 million in 2018 compared to net cash used in

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investing activities of $63 million in 2017 and $560 million in 2016. The $10 million in net cash provided by investing activities in 2018 and the $63 million of net cash used in investing activities in 2017 are significantly lower than the $560 million in net cash used in investing activities in 2016 due primarily to 2016 capital contributions to a subsidiary to fund the acquisition of the noncontrolling interest in National Interstate Corporation.

Parent Net Cash Provided by (Used in) Financing Activities   Parent company financing activities consist primarily of repurchases of AFG Common Stock, dividends to shareholders, the issuance and retirement of long-term debt and, to a lesser extent, proceeds from employee stock option exercises. Significant long-term debt and common stock transactions are discussed above under “Parent Holding Company Liquidity.” Parent holding company net cash used in financing activities was $366 million in 2018 compared to $413 million in 2017 and net cash provided by financing activities of $13 million in 2016. The $47 milliondecrease in net cash used in financing activities in 2018 as compared to 2017 reflects lower net redemptions of long-term debt in 2018 and decreased dividends (due primarily to special dividends of $3.00 per share in 2018 compared to $3.50 per share in 2017). The $426 millionincrease in net cash used in financing activities in 2017 as compared to 2016 reflects higher net redemptions of long-term debt in 2017 and increased dividends (due primarily to special dividends of $3.50 per share in 2017 compared to $1.00 per share in 2016), partially offset by the absence of American Financial Group, Inc. Common Stock repurchases in 2017.

Contractual Obligations The following table shows an estimate (based on historical patterns and expected trends) of payments to be made for insurance reserve liabilities, as well as scheduled payments for major contractual obligations (in millions).

	Total		Within One Year		2-3 Years		4-5 Years		More than 5 Years
Annuities (a)	$	43,588	$	3,493	$	8,598	$	9,341	$	22,156
Life, accident and health liabilities (a)	1,363		114		195		199		855
Property and casualty unpaid losses and loss adjustment expenses (b)	9,741		2,630		2,572		1,101		3,438
Long-term debt, including interest	2,862		60		120		120		2,562
Operating leases	326		65		107		75		79
Total	$	57,880	$	6,362	$	11,592	$	10,836	$	29,090

(a) Amounts presented in the table represent estimated cash payments under such contracts, based on significant assumptions related to mortality, morbidity, lapse, renewal, retirement and annuitization. These assumptions also include interest and index crediting consistent with assumptions used to amortize DPAC and assess loss recognition. All estimated cash payments are undiscounted for the time value of money. As a result, total outflows for all years exceed the corresponding liabilities of $36.62 billion for annuity benefits accumulated and $635 million for life, accident and health reserves included in AFG’s Balance Sheet as of December 31, 2018. Based on the same assumptions, AFG projects reinsurance recoveries related to life, accident and health reserves totaling $651 million as follows: Within 1 year — $65 million; 2-3 years — $113 million; 4-5 years — $85 million; and thereafter — $388 million. Actual payments and their timing could differ significantly from these estimates.

(b) Dollar amounts and time periods are estimates based on historical net payment patterns applied to the gross reserves and do not represent actual contractual obligations. Based on the same assumptions, AFG projects reinsurance recoveries related to these reserves totaling $2.94 billion as follows: Within 1 year — $800 million; 2-3 years — $800 million; 4-5 years — $300 million; and thereafter — $1.04 billion. Actual payments and their timing could differ significantly from these estimates.

AFG has no material contractual purchase obligations or other long-term liabilities at December 31, 2018.

Off-Balance Sheet Arrangements   See Note P — “Additional Information— Financial Instruments — Unfunded Commitments” to the financial statements.

Investments   AFG attempts to optimize investment income while building the value of its portfolio, placing emphasis upon total long-term performance.

AFG’s investment portfolio at December 31, 2018, contained $42.00 billion in fixed maturity securities classified as available for sale and carried at fair value with unrealized gains and losses included in a separate component of shareholders’ equity on an after-tax basis and $105 million in fixed maturities classified as trading with holding gains and losses included in net investment income. In addition, AFG’s investment portfolio includes $1.63 billion in equity securities carried at fair value with

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holding gains and losses included in realized gains (losses) on securities and $187 million in equity securities carried at fair value with holding gains and losses included in net investment income.

As detailed in Note E — “Investments — Net Unrealized Gain on Marketable Securities” to the financial statements, unrealized gains and losses on AFG’s fixed maturity securities are included in shareholders’ equity after adjustments for related changes in DPAC and certain liabilities related to annuity, long-term care and life businesses, noncontrolling interests and deferred income taxes. DPAC and certain other balance sheet amounts applicable to annuity, long-term care and life businesses are adjusted for the impact of unrealized gains or losses on investments as if these gains or losses had been realized, with corresponding increases or decreases (net of tax) included in accumulated other comprehensive income in AFG’s Balance Sheet.

Fixed income investment funds are generally invested in securities with intermediate-term maturities with an objective of optimizing total return while allowing flexibility to react to changes in market conditions. At December 31, 2018, the average life of AFG’s fixed maturities was about 6 years.

Fair values for AFG’s portfolio are determined by AFG’s internal investment professionals using data from nationally recognized pricing services as well as non-binding broker quotes. Fair values of equity securities are generally based on published closing prices. For mortgage-backed securities (“MBS”), which comprise approximately 9% of AFG’s fixed maturities, prices for each security are generally obtained from both pricing services and broker quotes. For the remainder of AFG’s fixed maturity portfolio, approximately 74% are priced using pricing services and the balance is priced primarily by using non-binding broker quotes. When prices obtained for the same security vary, AFG’s internal investment professionals select the price they believe is most indicative of an exit price.

The pricing services use a variety of observable inputs to estimate fair value of fixed maturities that do not trade on a daily basis. Based upon information provided by the pricing services, these inputs include, but are not limited to, recent reported trades, benchmark yields, issuer spreads, bids or offers, reference data, and measures of volatility. Included in the pricing of MBS are estimates of the rate of future prepayments and defaults of principal over the remaining life of the underlying collateral. Due to the lack of transparency in the process that brokers use to develop prices, valuations that are based on brokers’ prices are classified as Level 3 in the GAAP hierarchy unless the price can be corroborated, for example, by comparison to similar securities priced using observable inputs.

Valuation techniques utilized by pricing services and prices obtained from external sources are reviewed by AFG’s internal investment professionals who are familiar with the securities being priced and the markets in which they trade to ensure the fair value determination is representative of an exit price. To validate the appropriateness of the prices obtained, these investment managers consider widely published indices (as benchmarks), recent trades, changes in interest rates, general economic conditions and the credit quality of the specific issuers. In addition, AFG communicates directly with pricing services regarding the methods and assumptions used in pricing, including verifying, on a test basis, the inputs used by the services to value specific securities.

In general, the fair value of AFG’s fixed maturity investments is inversely correlated to changes in interest rates. The following table demonstrates the sensitivity of such fair values to reasonably likely changes in interest rates by illustrating the estimated effect on AFG’s fixed maturity portfolio and accumulated other comprehensive income that an immediate increase of 100 basis points in the interest rate yield curve would have at December 31, 2018 (dollars in millions). Effects of increases or decreases from the 100 basis points illustrated would be approximately proportional.

Fair value of fixed maturity portfolio	$	42,102
Percentage impact on fair value of 100 bps increase in interest rates	(4.5		%)
Pretax impact on fair value of fixed maturity portfolio	$	(1,895	)
Offsetting adjustments to deferred policy acquisition costs and other balance sheet amounts	800
Estimated pretax impact on accumulated other comprehensive income	(1,095		)
Deferred income tax	230
Estimated after-tax impact on accumulated other comprehensive income	$	(865	)

Approximately 91% of the fixed maturities held by AFG at December 31, 2018, were rated “investment grade” (credit rating of AAA to BBB) by nationally recognized rating agencies. Investment grade securities generally bear lower yields and lower degrees of risk than those that are unrated and non-investment grade. Management believes that the high quality investment portfolio should generate a stable and predictable investment return.

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MBS are subject to significant prepayment risk due to the fact that, in periods of declining interest rates, mortgages may be repaid more rapidly than scheduled as borrowers refinance higher rate mortgages to take advantage of lower rates. Although interest rates have been low in recent years, tighter lending standards have resulted in fewer buyers being able to refinance the mortgages underlying much of AFG’s non-agency residential MBS portfolio.

Summarized information for AFG’s MBS (including those classified as trading) at December 31, 2018, is shown in the table below (dollars in millions). Agency-backed securities are those issued by a U.S. government-backed agency; Alt-A mortgages are those with risk profiles between prime and subprime. The average life of both the residential and commercial MBS is approximately 4-1/2 years.

	Amortized Cost		Fair Value		Fair Value as % of Cost		Unrealized Gain (Loss)			% Rated Investment Grade
Collateral type
Residential:
Agency-backed	$	170	$	168	99	%	$	(2	)	100	%
Non-agency prime	967		1,098		114	%	131			28	%
Alt-A	972		1,074		110	%	102			31	%
Subprime	369		406		110	%	37			27	%
Commercial	905		920		102	%	15			94	%
	$	3,383	$	3,666	108	%	$	283		49	%

The National Association of Insurance Commissioners (“NAIC”) assigns creditworthiness designations on a scale of 1 to 6 with 1 being the highest quality and 6 being the lowest quality. The NAIC retains third-party investment management firms to assist in the determination of appropriate NAIC designations for MBS based not only on the probability of loss (which is the primary basis of ratings by the major ratings firms), but also on the severity of loss and statutory carrying value. At December 31, 2018, 96% (based on statutory carrying value of $3.33 billion) of AFG’s MBS had an NAIC designation of 1.

Municipal bonds represented approximately 17% of AFG’s fixed maturity portfolio at December 31, 2018. AFG’s municipal bond portfolio is high quality, with 99% of the securities rated investment grade at that date. The portfolio is well diversified across the states of issuance and individual issuers. At December 31, 2018, approximately 78% of the municipal bond portfolio was held in revenue bonds, with the remaining 22% held in general obligation bonds. AFG does not own general obligation bonds issued by Puerto Rico.

Summarized information for the unrealized gains and losses recorded in AFG’s Balance Sheet at December 31, 2018, is shown in the following table (dollars in millions). Approximately $463 million of available for sale fixed maturity securities had no unrealized gains or losses at December 31, 2018.

	Securities With Unrealized Gains			Securities With Unrealized Losses
Available for Sale Fixed Maturities
Fair value of securities	$	19,866		$	21,668
Amortized cost of securities	$	19,103		$	22,271
Gross unrealized gain (loss)	$	763		$	(603	)
Fair value as % of amortized cost	104		%	97		%
Number of security positions	3,016			2,324
Number individually exceeding $2 million gain or loss	52			25
Concentration of gains (losses) by type or industry (exceeding 5% of unrealized):
Mortgage-backed securities	$	294		$	(11	)
States and municipalities	169			(55		)
Asset-backed securities	130			(100		)
Banks, savings and credit institutions	34			(112		)
Manufacturing	24			(80		)
Insurance companies	19			(45		)
Percentage rated investment grade	87		%	96		%

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The table below sets forth the scheduled maturities of AFG’s available for sale fixed maturity securities at December 31, 2018, based on their fair values. Securities with sinking funds are reported at average maturity. Actual maturities may differ from contractual maturities because certain securities may be called or prepaid by the issuers.

	Securities With Unrealized Gains		Securities With Unrealized Losses
Maturity
One year or less	5	%	1	%
After one year through five years	25	%	16	%
After five years through ten years	25	%	41	%
After ten years	12	%	11	%
	67	%	69	%
Asset-backed securities (average life of approximately 4-1/2 years)	18	%	28	%
Mortgage-backed securities (average life of approximately 4-1/2 years)	15	%	3	%
	100	%	100	%

The table below (dollars in millions) summarizes the unrealized gains and losses on fixed maturity securities by dollar amount:

	Aggregate Fair Value		Aggregate Unrealized Gain (Loss)			Fair Value as % of Cost
Fixed Maturities at December 31, 2018
Securities with unrealized gains:
Exceeding $500,000 (395 securities)	$	5,180	$	464		110	%
$500,000 or less (2,621securities)	14,686		299			102	%
	$	19,866	$	763		104	%
Securities with unrealized losses:
Exceeding $500,000 (342 securities)	$	6,392	$	(353	)	95	%
$500,000 or less (1,982 securities)	15,276		(250		)	98	%
	$	21,668	$	(603	)	97	%

The following table (dollars in millions) summarizes the unrealized losses for all securities with unrealized losses by issuer quality and the length of time those securities have been in an unrealized loss position:

	Aggregate Fair Value		Aggregate Unrealized Loss			Fair Value as % of Cost
Securities with Unrealized Losses at December 31, 2018
Investment grade fixed maturities with losses for:
Less than one year (1,571 securities)	$	17,103	$	(387	)	98	%
One year or longer (567 securities)	3,648		(167		)	96	%
	$	20,751	$	(554	)	97	%
Non-investment grade fixed maturities with losses for:
Less than one year (133 securities)	$	663	$	(24	)	97	%
One year or longer (53 securities)	254		(25		)	91	%
	$	917	$	(49	)	95	%

When a decline in the value of a specific investment is considered to be other-than-temporary, a provision for impairment is charged to earnings (accounted for as a realized loss) and the cost basis of that investment is reduced by the amount of the charge. The determination of whether unrealized losses are other-than-temporary requires judgment based on subjective as well as objective factors.Factors considered and resources used by management include:

a) whether the unrealized loss is credit-driven or a result of changes in market interest rates,

b) the extent to which fair value is less than cost basis,

c) cash flow projections received from independent sources,

d) historical operating, balance sheet and cash flow data contained in issuer SEC filings and news releases,

e) near-term prospects for improvement in the issuer and/or its industry,

f) third party research and communications with industry specialists,

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g) financial models and forecasts,

h) the continuity of interest payments, maintenance of investment grade ratings and hybrid nature of certain investments,

i) discussions with issuer management, and

j) ability and intent to hold the investment for a period of time sufficient to allow for anticipated recovery in fair value.

Based on its analysis of the factors listed above, management believes AFG will recover its cost basis in the fixed maturity securities with unrealized losses and that AFG has the ability to hold the securities until they recover in value and had no intent to sell them at December 31, 2018. Although AFG has the ability to continue holding its fixed maturity investments with unrealized losses, its intent to hold them may change due to deterioration in the issuers’ creditworthiness, decisions to lessen exposure to a particular issuer or industry, asset/liability management decisions, market movements, changes in views about appropriate asset allocation or the desire to offset taxable realized gains. Should AFG’s ability or intent change with regard to a particular security, a charge for impairment would likely be required. While it is not possible to accurately predict if or when a specific security will become impaired, charges for other-than-temporary impairment could be material to results of operations in future periods. Significant declines in the fair value of AFG’s investment portfolio could have a significant adverse effect on AFG’s liquidity. For information on AFG’s realized gains (losses) on securities, including charges for other-than-temporary impairment, see “Results of Operations — Consolidated Realized Gains (Losses) on Securities.”

As discussed in Note A — “Accounting Policies — Investments” to the financial statements, effective January 1, 2018, all equity securities previously classified as “available for sale” are now required to be carried at fair value through net earnings instead of accumulated other comprehensive income and will therefore no longer be evaluated for other-than-temporary impairment.

Uncertainties    As more fully explained in the following paragraphs, management believes that the areas posing the greatest risk of material loss are the adequacy of its insurance reserves and contingencies arising out of its former railroad and manufacturing operations.

Property and Casualty Insurance Reserves   Estimating the liability for unpaid losses and loss adjustment expenses (“LAE”) is inherently judgmental and is influenced by factors that are subject to significant variation. Determining the liability is a complex process incorporating input from many areas of the Company including actuarial, underwriting, pricing, claims and operations management.

The estimates of liabilities for unpaid claims and for expenses of investigation and adjustment of unpaid claims are based upon: (i) the accumulation of case estimates for losses reported prior to the close of the accounting periods on direct business written (“case reserves”); (ii) estimates received from ceding reinsurers and insurance pools and associations; (iii) estimates of claims incurred but not reported or “IBNR” (including possible development on known claims); (iv) estimates (based on experience) of expense for investigating and adjusting claims; and (v) the current state of law and coverage litigation.

The process used to determine the total reserve for liabilities involves estimating the ultimate incurred losses and LAE, adjusted for amounts already paid on the claims. The IBNR reserve is derived by first estimating the ultimate unpaid reserve liability and subtracting case reserves for loss and LAE. See Note O — “Insurance — Property and Casualty Insurance Reserves” to the financial statements for a discussion of the factors considered and actuarial methods used in determining management’s best estimate of the ultimate liability for unpaid losses and LAE.

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The following table shows (in millions) the breakdown of AFG’s property and casualty insurance reserves between case reserves, IBNR reserves and LAE reserves (estimated amounts required to adjust, record and settle claims, other than the claim payments themselves) at December 31, 2018 and gross written premiums for the year ended December 31, 2018.

	Gross Loss Reserves
	Case			IBNR		LAE		Total Reserves			Gross Written Premiums
Statutory Line of Business
Other liability — occurrence	$	679		$	1,811	$	440	$	2,930		$	1,000
Workers’ compensation	1,022			1,413		332		2,767			1,293
Other liability — claims made	198			320		247		765			474
Commercial auto/truck liability/medical	236			333		109		678			413
Special property (fire, allied lines, inland marine, earthquake)	379			127		25		531			1,369
Products liability — occurrence	76			152		141		369			142
Commercial multi-peril	153			136		69		358			276
Other lines	191			366		86		643			1,091
Total Statutory	2,934			4,658		1,449		9,041			6,058
Adjustments for GAAP:
Foreign operations	218			441		30		689			759
Deferred gains on retroactive reinsurance	—			34		—		34			—
Loss reserve discounting	(9		)	—		—		(9		)	—
Other	(14		)	—		—		(14		)	23
Total Adjustments for GAAP	195			475		30		700			782
Total GAAP Reserves and Premiums	$	3,129		$	5,133	$	1,479	$	9,741		$	6,840

While current factors and reasonably likely changes in variable factors are considered in estimating the liability for unpaid losses, there is no method or system that can eliminate the risk of actual ultimate results differing from such estimates.

Following is a discussion of certain critical variables affecting the estimation of loss reserves of the more significant long-tail lines of business (asbestos and environmental liabilities are separately discussed below). Many other variables may also impact ultimate claim costs.

An important assumption underlying reserve estimates is that the cost trends implicitly built into development patterns will continue into the future. However, future results could vary due to an unexpected change in the underlying cost trends. This unexpected change could arise from a variety of sources including a general increase in economic inflation, inflation from social programs, new medical technologies, or other factors such as those listed below in connection with AFG’s largest lines of business. It is not possible to isolate and measure the potential impact of just one of these variables, and future cost trends could be partially impacted by several such variables. However, it is reasonable to address the sensitivity of the reserves to potential impact from changes in these variables by measuring the effect of a possible overall 1% change in future cost trends that may be caused by one or more variables. Utilizing the effect of a 1% change in overall cost trends enables changes greater than 1% to be estimated by extrapolation. Each additional 1% change in the cost trend would increase the effect on net earnings by an amount slightly (about 5%) greater than the effect of the previous 1%. For example, if a 1% change in cost trends in a line of business would change net earnings by $20 million, a 2% change would change net earnings by approximately $41 million.

The estimated cumulative impact that a 1% change in cost trends in AFG’s more significant lines of property and casualty business (exceeding 5% of total reserves) would have on net earnings is shown below (in millions).

Line of business	Effect of 1% Change in Cost Trends
Other liability — occurrence	$	44
Workers’ compensation	75
Other liability — claims made	12
Commercial auto/truck liability/medical	10

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The judgments and uncertainties surrounding management’s reserve estimation process and the potential for reasonably possible variability in management’s most recent reserve estimates may also be viewed by looking at how recent historical estimates of reserves have developed. The following table shows (dollars in millions) what the impact on AFG’s net earnings would be on the more significant lines of business if the December 31, 2018, reserves (net of reinsurance) developed at the same rate as the average development of the most recent five years.

	5-yr. Average Development (a)(b)		Net Reserves (b) December 31, 2018		Effect on Net Earnings (b)
Other liability — occurrence	2.2	%	$	1,223	$	(27	)
Workers’ compensation	(2.8	%)	2,335		65
Other liability — claims made	(2.0	%)	556		11
Commercial auto/truck liability/medical	2.0	%	478		(10		)

(a) Adverse (favorable), net of tax effect.

(b) Excludes asbestos and environmental liabilities.

The following discussion describes key assumptions and important variables that affect the estimate of the reserve for loss and loss adjustment expenses of the more significant lines of business and explains what caused them to change from assumptions used in the preceding period.

Other Liability — Occurrence

This long-tail line of business consists of coverages protecting the insured against legal liability resulting from negligence, carelessness, or a failure to act causing property damage or personal injury to others. Some of the important variables affecting estimation of loss reserves for other liability — occurrence include:

• Litigious climate

• Unpredictability of judicial decisions regarding coverage issues

• Magnitude of jury awards

• Outside counsel costs

• Timing of claims reporting

AFG recorded adverse prior year reserve development of $48 million in 2018 related to its other liability — occurrence coverage due to continued claim severity increases in excess and umbrella liability coverages as well as late emergence of excess workers’ compensation and Texas non-subscribers workers’ injury claims. AFG recorded adverse prior year reserve development of $37 million in 2017 due to continued severity increases in New York contractor claims, as well as increased claim severity across other excess and umbrella liability coverages and general liability coverages. AFG recorded adverse prior year reserve development of $61 million in 2016 due primarily to increased severity in New York contractor claims.

While management applies the actuarial methods mentioned above, more judgment is involved in arriving at the final reserve to be held. For recent accident years, more weight is given to the Bornhuetter-Ferguson method.

Workers’ Compensation

This long-tail line of business provides coverage to employees who may be injured in the course of employment. Some of the important variables affecting estimation of loss reserves for workers’ compensation include:

• Legislative actions and regulatory and legal interpretations

• Future medical cost inflation

• Economic conditions

• Frequency of reopening claims previously closed

• Advances in medical equipment and processes

• Pace and intensity of employee rehabilitation

• Changes in the use of pharmaceutical drugs

• Changes in longevity trends for permanently injured workers

Approximately 25% and 22% of AFG’s workers’ compensation reserves at December 31, 2018 relate to policies written in Florida and California, respectively. The Castellanos v. Next Door Company decision in Florida and the implementation of Senate Bill 863 in California are two examples of recent changes that impacted the workers’ compensation operating environment and added difficulty and uncertainty to the estimation of related liabilities.

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AFG recorded favorable prior year reserve development of $127 million in 2018 related to its workers’ compensation coverage due to lower than anticipated claim severity in the southeastern United States and improving claim closure rates in California. AFG recorded favorable prior year reserve development of $79 million in 2017 due to lower than anticipated claim severity and improving claim closure rates, particularly in the southeastern United States and California. AFG recorded favorable prior year reserve development of $85 million in 2016 due to lower than anticipated claim severity and improving claim closure rates.

Other Liability — Claims Made

This long-tail line of business consists mostly of directors’ and officers’ liability (“D&O”). Some of the important variables affecting estimation of loss reserves for other liability — claims made include:

• Litigious climate

• Economic conditions

• Variability of stock prices

• Magnitude of jury awards

The general state of the economy and the variability of the stock price of the insured can affect the frequency and severity of shareholder class action suits and other situations that trigger coverage under D&O policies. For example, from 2008 to 2010, economic conditions led to higher frequency of claims, particularly in the D&O policies for small account and not-for-profit organizations. Since then, claim frequency has consistently decreased from its peak in 2010, offsetting increased claim severity.

AFG recorded favorable prior year reserve development of $9 million in 2018, $5 million in 2017 and $24 million in 2016 on its D&O business as claim severity was less than expected across several prior accident years.

Commercial Auto/Truck Liability/Medical

This line of business is a mix of coverage protecting the insured against legal liability for property damage or personal injury to others arising from the operation of commercial motor vehicles. The property damage liability exposure is usually short-tail with relatively quick reporting and settlement of claims. The bodily injury and medical payments exposures are longer-tailed; although the claim reporting is relatively quick, the final settlement can take longer to achieve. Some of the important variables affecting estimation of loss reserves for commercial auto/truck liability/medical are similar to other liability — occurrence and include:

• Magnitude of jury awards

• Unpredictability of judicial decisions regarding coverage issues

• Litigious climate and trends

• Change in frequency of severe accidents

• Health care costs and utilization of medical services by injured parties

AFG recorded favorable prior year reserve development of $26 million in 2018 for this line of business due primarily to lower than expected claim severity. AFG recorded adverse prior year reserve development of $2 million in 2017 and $28 million in 2016 for this line of business. Claim severity trends had been significantly higher than expected beginning with accident years 2010, but have more recently stabilized.

Reserves of Foreign Operations

Approximately $417 million of the $689 million in gross reserves of foreign operations relate to the operations of Neon Underwriting Limited, AFG’s wholly-owned United Kingdom-based Lloyd’s insurer. Neon writes cargo, cyber, financial lines, marine and energy liability, marine hull and war, personal accident and health, political and trade risk, professional indemnity, property reinsurance and terrorism and political violence insurance. Significant variables in estimating Neon’s loss reserves include:

• Litigious environment

• Magnitude of court awards

• Trends in claim costs, including medical cost inflation

• Global economic conditions

• Reporting lag from ceding property insurers

Neon recorded favorable prior year reserve development of $26 million in 2018, due primarily to lower than expected emergence in assumed 2017 property catastrophe losses.

In the fourth quarter of 2017, Neon entered into a reinsurance to close agreement for 2015 and prior years of account, which transfers the responsibility for all of the liabilities that attach to the transferred year of account (gross reserves of $385 million

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at December 31, 2017) as well as any income due to the closing year of account in return for a premium. The reinsurance to close agreement eliminates any remaining reserve volatility from years of account 2015 and prior, including all medical malpractice exposure. As a result of the reinsurance to close transaction, Neon recorded favorable reserve development of approximately $42 million, including $24 million related to its ongoing lines of business and $18 million that relates to the exited lines of business discussed below. In addition to the prior year reserve development related to the reinsurance to close transaction, Neon recorded favorable prior year reserve development of $29 million in 2017 related to the retained loss reserves across all of Neon’s ongoing lines of business, particularly property lines.

During the second quarter of 2016, Neon completed a strategic review of its business under a new leadership team. As part of its strategic review, Neon sold and/or exited certain historical lines of business including its medical malpractice and general liability classes. As a result of Neon’s claims review of its exited lines of business, AFG recorded a charge of approximately $65 million, including $57 million to increase loss reserves (adverse development) primarily related to Neon’s medical malpractice and general liability lines. In addition to the prior year reserve development related to the Neon exited lines charge, Neon recorded adverse prior year reserve development of $21 million in 2016, attributable to reserve strengthening in several lines of business, including political risk and personal accident.

Recoverables from Reinsurers and Availability of Reinsurance   AFG is subject to credit risk with respect to its reinsurers, as reinsurance contracts do not relieve AFG of its liability to policyholders. To mitigate this risk, substantially all reinsurance is ceded to companies with investment grade S&P ratings or is secured by “funds withheld” or other collateral.

The availability and cost of reinsurance are subject to prevailing market conditions, which are beyond AFG’s control and which may affect AFG’s level of business and profitability. Although the cost of certain reinsurance programs may increase, management believes that AFG will be able to maintain adequate reinsurance coverage at acceptable rates without a material adverse effect on AFG’s results of operations. AFG’s gross and net combined ratios are shown in the table below.

See Item 1— Business — “Property and Casualty Insurance Segment— Reinsurance” for more information on AFG’s reinsurance programs. For additional information on the effect of reinsurance on AFG’s historical results of operations see Note O— “Insurance — Reinsurance” to the financial statements.

The following table illustrates the effect that purchasing property and casualty reinsurance has had on AFG’s combined ratio over the last three years.

	2018		2017		2016
Before reinsurance (gross)	94.1	%	98.9	%	92.5	%
Effect of reinsurance	(0.3	%)	(4.2	%)	2.0	%
Actual (net of reinsurance)	93.8	%	94.7	%	94.5	%

Outside of its property and casualty operations, AFG also has reinsurance recoverables totaling $298 million, including $247 million related to the run-off life business. These recoverables include $210 million directly or indirectly from Hannover Life Reassurance Company of America (rated A+ by A.M. Best).

Asbestos and Environmental-related (“A&E”) Insurance Reserves   Asbestos and environmental reserves of the property and casualty group consisted of the following (in millions):

	December 31,
	2018		2017
Asbestos	$	234	$	238
Environmental	161		165
A&E reserves, net of reinsurance recoverable	395		403
Reinsurance recoverable, net of allowance	129		125
Gross A&E reserves	$	524	$	528

Asbestos reserves include claims asserting alleged injuries and damages from exposure to asbestos. Environmental reserves include claims relating to polluted sites.

Asbestos claims against manufacturers, distributors or installers of asbestos products were presented under the products liability section of their policies, which typically had aggregate limits that capped an insurer’s liability. In recent years, a number of asbestos claims are being presented as “non-products” claims, such as those by installers of asbestos products and by property

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owners or operators who allegedly had asbestos on their property, under the premises or operations section of their policies. Unlike products exposures, these non-products exposures typically had no aggregate limits, creating potentially greater exposure for insurers. Further, in an effort to seek additional insurance coverage, some insureds with installation activities who have substantially eroded their products coverage are presenting new asbestos claims as non-products operations claims or attempting to reclassify previously settled products claims as non-products claims to restore a portion of previously exhausted products aggregate limits. AFG, along with other insurers, is and will be subject to such non-products claims. It is difficult to predict whether insureds will be successful in asserting claims under non-products coverage or whether AFG and other insurers will be successful in asserting additional defenses. Therefore, the future impact of such efforts is uncertain.

Approximately 43% of AFG’s net asbestos reserves relate to policies written directly by AFG subsidiaries. Claims from these policies generally are product-oriented claims with only a limited amount of non-products exposures, and are dominated by small to mid-sized commercial entities that are mostly regional policyholders with few national target defendants. The remainder is assumed reinsurance business that includes exposures for the periods 1954 to 1983. The asbestos and environmental assumed claims are ceded by various insurance companies under reinsurance treaties. A majority of the individual assumed claims have exposures of less than $100,000 to AFG. Asbestos losses assumed include some of the industry known manufacturers, distributors and installers. Pollution losses include industry known insured names and sites.

Establishing reserves for A&E claims relating to policies and participations in reinsurance treaties and former operations is subject to uncertainties that are significantly greater than those presented by other types of claims. For this group of claims, traditional actuarial techniques that rely on historical loss development trends cannot be used and a range of reasonably possible losses cannot be estimated. Case reserves and expense reserves are established by the claims department as specific policies are identified. In addition to the case reserves established for known claims, management establishes additional reserves for claims not yet known or reported and for possible development on known claims. These additional reserves are management’s best estimate based on periodic comprehensive studies and internal reviews adjusted for payments and identifiable changes, supplemented by management’s review of industry information about such claims, with due consideration to individual claim situations.

Management believes that estimating the ultimate liability for asbestos claims presents a unique and difficult challenge to the insurance industry due to, among other things, inconsistent court decisions, an increase in bankruptcy filings as a result of asbestos-related liabilities, novel theories of coverage, and judicial interpretations that often expand theories of recovery and broaden the scope of coverage. The casualty insurance industry is engaged in extensive litigation over these coverage and liability issues as the volume and severity of claims against asbestos defendants continue to increase. Environmental claims likewise present challenges in prediction, due to uncertainty regarding the interpretation of insurance policies, complexities regarding multi-party involvements at sites, evolving cleanup standards and protracted time periods required to assess the level of cleanup required at contaminated sites.

The following factors could impact AFG’s reserves and payments:

• There is a growing interest at the state level to attempt to legislatively address asbestos liabilities and the manner in which asbestos claims are resolved. These developments are fluid and could result in piecemeal state-by-state solutions.

• The manner by which bankruptcy courts are addressing asbestos liabilities is in flux.

• AFG’s insureds may make claims alleging significant non-products exposures.

While management believes that AFG’s reserves for A&E claims are a reasonable estimate of ultimate liability for such claims, actual results may vary materially from the amounts currently recorded due to the difficulty in predicting the number of future claims, the impact of recent bankruptcy filings, and unresolved issues such as whether coverage exists, whether policies are subject to aggregate limits on coverage, how claims are to be allocated among triggered policies and implicated years, and whether claimants who exhibit no signs of illness will be successful in pursuing their claims. A 1% variation in loss cost trends, caused by any of the factors previously described, would change net earnings by approximately $33 million.

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AFG tracks its A&E claims by policyholder. The following table shows, by type of claim, the number of policyholders that did not receive any payments in the calendar year separate from policyholders that did receive a payment. Policyholder counts represent policies written by AFG subsidiaries and do not include assumed reinsurance.

	2018	2017	2016
Number of policyholders with no indemnity payments:
Asbestos	94	81	87
Environmental	112	101	107
	206	182	194
Number of policyholders with indemnity payments:
Asbestos	49	74	66
Environmental	32	31	28
	81	105	94
Total	287	287	288

Amounts paid (net of reinsurance recoveries) for asbestos and environmental claims, including loss adjustment expenses, were as follows (in millions):

	2018		2017		2016
Asbestos	$	9	$	11	$	12
Environmental	17		12		14
Total	$	26	$	23	$	26

The survival ratio is a measure often used by industry analysts to compare A&E reserves strength among companies. This ratio is typically calculated by dividing reserves for A&E exposures by the three-year average of paid losses, and therefore measures the number of years that it would take to pay off current reserves based on recent average payments. Because this ratio can be significantly impacted by a number of factors such as loss payout variability, caution should be exercised in attempting to determine reserve adequacy based simply on the survival ratio. At December 31, 2018, the property and casualty insurance segment’s three-year survival ratios compare favorably with industry survival ratios derived from data published by A.M. Best (as of December 31, 2017) as detailed in the following table:

	Property and Casualty Insurance Reserves
	Three-Year Survival Ratio (% Times Paid Losses)
	Asbestos	Environmental	Total A&E
AFG (12/31/2018)	21.8	11.4	15.9
Industry (12/31/2017)	6.6	6.8	6.6

In addition to its ongoing internal monitoring of asbestos and environmental exposures, AFG has periodically conducted comprehensive external studies of its asbestos and environmental reserves relating to the run-off operations of its property and casualty insurance segment and exposures related to its former railroad and manufacturing operations with the aid of specialty actuarial, engineering and consulting firms and outside counsel, every two years in recent periods, with an in-depth internal review during the intervening years. AFG is currently evaluating the frequency of future external studies.

An in-depth internal review of AFG’s A&E reserves was completed in the third quarter of 2018 by AFG’s internal A&E claims specialists in consultation with specialty outside counsel and an outside consultant. As a result of the review, AFG’s property and casualty insurance segment recorded an $18 million pretax special charge to increase its asbestos reserves by $6 million (net of reinsurance) and its environmental reserves by $12 million (net of reinsurance). Over the past few years, the focus of AFG’s asbestos claims litigation has shifted to smaller companies and companies with ancillary exposures. AFG’s insureds with these exposures have been the driver of the property and casualty segment’s asbestos reserve increases in recent years. AFG is seeing modestly increasing estimates for indemnity and defense compared to prior studies on certain specific open claims.

The increase in property and casualty environmental reserves was primarily associated with updated estimates of site investigation and remedial costs with respect to existing sites and newly identified sites. AFG has updated its view of legal defense costs on open environmental claims as well as a number of claims and sites where the estimated investigation and remediation costs have increased. As in past years, there were no new or emerging broad industry trends that were identified in this review.

As a result of the comprehensive external study completed in the third quarter of 2017, AFG’s property and casualty insurance segment recorded an $89 million pretax special charge to increase its asbestos reserves by $53 million (net of reinsurance) and

43

its environmental reserves by $36 million (net of reinsurance). The increase in property and casualty asbestos reserves reflects increasing life expectancies in the U.S., which have allowed more time for the impacts of asbestos exposure to emerge. AFG’s comprehensive external study incorporates, among other factors, the increase in projected industry ultimate losses attributable to asbestos exposures, as well as revised estimates for future claims emergence. The increase in property and casualty environmental reserves was attributed primarily to increased legal defense costs and a number of claims and sites where the estimated investigation and remediation costs have increased.

As a result of the in-depth internal review completed in the third quarter of 2016, AFG’s property and casualty insurance segment recorded a $36 million pretax special charge to increase its asbestos reserves by $5 million (net of reinsurance) and its environmental reserves by $31 million (net of reinsurance). The increase in property and casualty asbestos reserves was due primarily to increased estimates for indemnity and defense costs. The increase in property and casualty environmental reserves was attributed primarily to increased defense costs and a number of claims and sites where the estimated investigation and remediation costs have increased.

Contingencies related to Subsidiaries’ Former Operations   The A&E studies and reviews discussed above encompassed reserves for various environmental and occupational injury and disease claims and other contingencies arising out of the railroad operations disposed of by American Premier’s predecessor and certain manufacturing operations disposed of by American Premier and its subsidiaries and by Great American Financial Resources, Inc. Charges resulting from the A&E study and reviews were $9 million in 2018, $24 million in 2017 and $5 million in 2016. For a discussion of the charges recorded for those operations, see “Results of Operations — Holding Company, Other and Unallocated.” Liabilities for claims and contingencies arising from these former railroad and manufacturing operations totaled $91 million at December 31, 2018. For a discussion of the uncertainties in determining the ultimate liability, see Note M — “Contingencies” to the financial statements.

Fixed-indexed Annuity Embedded Derivatives   As of December 31, 2018, annuity benefits accumulated in AFG’s Balance Sheet includes $2.72 billion for the fair value of the derivatives embedded in its fixed-indexed and variable-indexed annuities. As discussed in Note F — “Derivatives” to the financial statements, AFG’s fixed-indexed and variable-indexed annuities provide policyholders with a crediting rate tied, in part, to the performance of an existing stock market or other financial index. Under GAAP, this index participation is considered an embedded derivative that is required to be carried at fair value in the financial statements. AFG attempts to mitigate the risk in the index-based component of these products through the purchase and sale of call and put options on the appropriate index. AFG’s strategy is designed so that the change in the fair value of the call and put options will generally offset the economic change in the liabilities from the index participation. The fair value of the embedded derivatives represents an estimate of the present value of projected policyholder benefits from the equity participation in excess of the projected minimum guaranteed contract values based on the estimated present value of certain projected future cash flows. As discussed in Note D — “Fair Value Measurements” to the financial statements, the fair value of the embedded derivatives is impacted by fluctuations in interest rates, the stock market (including the cost of options), policyholder behavior and other factors. Certain of these fluctuations, such as changes in interest rates and the performance of the stock market, are not economic in nature for the current reporting period, but rather impact the timing of reported results.

Run-off Long-term Care Insurance   In December 2015, AFG completed the sale of United Teacher Associates Insurance Company and Continental General Insurance Company, the legal entities containing substantially all of its run-off long-term care insurance business, to HC2 Holdings, Inc. (“HC2”) for approximately $13 million in net proceeds. AFG may also receive up to $13 million of additional proceeds from HC2 in the future contingent upon the release of certain statutory-basis liabilities of the legal entities sold by AFG. In connection with obtaining regulatory approval for the transaction, AFG agreed to provide up to an aggregate of $35 million of capital support for the insurance companies, on an as-needed basis to maintain specified surplus levels, subject to immediate reimbursement by HC2 through a five-year capital maintenance agreement expiring in 2020. With the completion of this sale, AFG divested substantially all of its long-term care business (96% as measured by net statutory reserves as of November 30, 2015) and retained only a small block of long-term care insurance (1,500 policies) with approximately $45 million of reserves at December 31, 2018. AFG will continue to accept renewal premiums on its remaining outstanding policies, which are guaranteed renewable.

MANAGED INVESTMENT ENTITIES

Accounting standards require AFG to consolidate its investments in collateralized loan obligation (“CLO”) entities that it manages and owns an interest in (in the form of debt). See Note A — “Accounting Policies— Managed Investment Entities” and Note H— “Managed Investment Entities” to the financial statements. The effect of consolidating these entities is shown in the tables below (in millions). The “Before CLO Consolidation” columns include AFG’s investment and earnings in the CLOs on an unconsolidated basis.

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CONDENSED CONSOLIDATING BALANCE SHEET

	Before CLO Consolidation		Managed Investment Entities		Consol. Entries				Consolidated As Reported
December 31, 2018
Assets:
Cash and investments	$	48,685	$	—	$	(187	)	(a)	$	48,498
Assets of managed investment entities	—		4,700		—				4,700
Other assets	10,259		—		(1		)	(a)	10,258
Total assets	$	58,944	$	4,700	$	(188	)		$	63,456
Liabilities:
Unpaid losses and loss adjustment expenses and unearned premiums	$	12,336	$	—	$	—			$	12,336
Annuity, life, accident and health benefits and reserves	37,251		—		—				37,251
Liabilities of managed investment entities	—		4,700		(188		)	(a)	4,512
Long-term debt and other liabilities	4,385		—		—				4,385
Total liabilities	53,972		4,700		(188		)		58,484
Redeemable noncontrolling interests	—		—		—				—
Shareholders’ equity:
Common Stock and Capital surplus	1,334		—		—				1,334
Retained earnings	3,588		—		—				3,588
Accumulated other comprehensive income, net of tax	48		—		—				48
Total shareholders’ equity	4,970		—		—				4,970
Noncontrolling interests	2		—		—				2
Total equity	4,972		—		—				4,972
Total liabilities and equity	$	58,944	$	4,700	$	(188	)		$	63,456
December 31, 2017
Assets:
Cash and investments	$	46,262	$	—	$	(214	)	(a)	$	46,048
Assets of managed investment entities	—		4,902		—				4,902
Other assets	9,709		—		(1		)	(a)	9,708
Total assets	$	55,971	$	4,902	$	(215	)		$	60,658
Liabilities:
Unpaid losses and loss adjustment expenses and unearned premiums	$	12,088	$	—	$	—			$	12,088
Annuity, life, accident and health benefits and reserves	33,974		—		—				33,974
Liabilities of managed investment entities	—		4,902		(215		)	(a)	4,687
Long-term debt and other liabilities	4,575		—		—				4,575
Total liabilities	50,637		4,902		(215		)		55,324
Redeemable noncontrolling interests	3		—		—				3
Shareholders’ equity:
Common Stock and Capital surplus	1,269		—		—				1,269
Retained earnings	3,248		—		—				3,248
Accumulated other comprehensive income, net of tax	813		—		—				813
Total shareholders’ equity	5,330		—		—				5,330
Noncontrolling interests	1		—		—				1
Total equity	5,331		—		—				5,331
Total liabilities and equity	$	55,971	$	4,902	$	(215	)		$	60,658

(a) Elimination of the fair value of AFG’s investment in CLOs and related accrued interest.

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CONDENSED CONSOLIDATING STATEMENT OF EARNINGS

	Before CLO Consolidation (a)			Managed Investment Entities			Consol. Entries				Consolidated As Reported
Three months ended December 31, 2018
Revenues:
Insurance net earned premiums	$	1,276		$	—		$	—			$	1,276
Net investment income	538			—			4			(b)	542
Realized losses on securities	(238		)	—			—				(238		)
Income of managed investment entities:
Investment income	—			68			—				68
Gain (loss) on change in fair value of assets/liabilities	—			(1		)	(10		)	(b)	(11		)
Other income	57			—			(4		)	(c)	53
Total revenues	1,633			67			(10		)		1,690
Costs and Expenses:
Insurance benefits and expenses	1,575			—			—				1,575
Expenses of managed investment entities	—			67			(10		)	(b)(c)	57
Interest charges on borrowed money and other expenses	97			—			—				97
Total costs and expenses	1,672			67			(10		)		1,729
Earnings (loss) before income taxes	(39		)	—			—				(39		)
Provision (credit) for income taxes	(4		)	—			—				(4		)
Net earnings (loss), including noncontrolling interests	(35		)	—			—				(35		)
Less: Net earnings (losses) attributable to noncontrolling interests	(6		)	—			—				(6		)
Net earnings (loss) attributable to shareholders	$	(29	)	$	—		$	—			$	(29	)
Three months ended December 31, 2017
Revenues:
Insurance net earned premiums	$	1,230		$	—		$	—			$	1,230
Net investment income	472			—			(7		)	(b)	465
Realized gains on securities	6			—			—				6
Income of managed investment entities:
Investment income	—			55			—				55
Gain on change in fair value of assets/liabilities	—			—			—			(b)	—
Other income	56			—			(4		)	(c)	52
Total revenues	1,764			55			(11		)		1,808
Costs and Expenses:
Insurance benefits and expenses	1,340			—			—				1,340
Expenses of managed investment entities	—			54			(10		)	(b)(c)	44
Interest charges on borrowed money and other expenses	157			—			—				157
Total costs and expenses	1,497			54			(10		)		1,541
Earnings before income taxes	267			1			(1		)		267
Provision (credit) for income taxes	101			—			—				101
Net earnings, including noncontrolling interests	166			1			(1		)		166
Less: Net earnings attributable to noncontrolling interests	—			—			—				—
Net earnings attributable to shareholders	$	166		$	1		$	(1	)		$	166

(a) Includes a loss of $4 million in the fourth quarter of 2018 and income of $7 million in the fourth quarter of 2017 representing the change in fair value of AFG’s CLO investments plus $4 million in both the fourth quarter of 2018 and 2017 in CLO management fees earned.

(b) Elimination of the change in fair value of AFG’s investments in the CLOs, including $6 million in both the fourth quarter of 2018 and 2017 in distributions recorded as interest expense by the CLOs.

(c) Elimination of management fees earned by AFG.

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CONDENSED CONSOLIDATING STATEMENT OF EARNINGS - CONTINUED

	Before CLO Consolidation (a)			Managed Investment Entities			Consol. Entries				Consolidated As Reported
Year ended December 31, 2018
Revenues:
Insurance net earned premiums	$	4,889		$	—		$	—			$	4,889
Net investment income	2,101			—			(7		)	(b)	2,094
Realized losses on securities	(266		)	—			—				(266		)
Income (loss) of managed investment entities:
Investment income	—			255			—				255
Gain (loss) on change in fair value of assets/liabilities	—			(7		)	(14		)	(b)	(21		)
Other income	215			—			(16		)	(c)	199
Total revenues	6,939			248			(37		)		7,150
Costs and Expenses:
Insurance benefits and expenses	5,885			—			—				5,885
Expenses of managed investment entities	—			248			(37		)	(b)(c)	211
Interest charges on borrowed money and other expenses	415			—			—				415
Total costs and expenses	6,300			248			(37		)		6,511
Earnings before income taxes	639			—			—				639
Provision for income taxes	122			—			—				122
Net earnings, including noncontrolling interests	517			—			—				517
Less: Net earnings (losses) attributable to noncontrolling interests	(13		)	—			—				(13		)
Net earnings attributable to shareholders	$	530		$	—		$	—			$	530
Year ended December 31, 2017
Revenues:
Insurance net earned premiums	$	4,601		$	—		$	—			$	4,601
Net investment income	1,854			—			(23		)	(b)	1,831
Realized gains on securities	5			—			—				5
Income of managed investment entities:
Investment income	—			210			—				210
Gain on change in fair value of assets/liabilities	—			22			(10		)	(b)	12
Other income	224			—			(18		)	(c)	206
Total revenues	6,684			232			(51		)		6,865
Costs and Expenses:
Insurance benefits and expenses	5,453			—			—				5,453
Expenses of managed investment entities	—			231			(50		)	(b)(c)	181
Interest charges on borrowed money and other expenses	507			—			—				507
Total costs and expenses	5,960			231			(50		)		6,141
Earnings before income taxes	724			1			(1		)		724
Provision for income taxes	247			—			—				247
Net earnings, including noncontrolling interests	477			1			(1		)		477
Less: Net earnings attributable to noncontrolling interests	2			—			—				2
Net earnings attributable to shareholders	$	475		$	1		$	(1	)		$	475

(a) Includes income of $7 million and $23 million in 2018 and 2017, respectively, representing the change in fair value of AFG’s CLO investments plus $16 million and $18 million in 2018 and 2017, respectively, in CLO management fees earned.

(b) Elimination of the change in fair value of AFG’s investments in the CLOs, including $21 million and $32 million in 2018 and 2017, respectively, in distributions recorded as interest expense by the CLOs.

(c) Elimination of management fees earned by AFG.

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CONDENSED CONSOLIDATING STATEMENT OF EARNINGS - CONTINUED

	Before CLO Consolidation (a)		Managed Investment Entities		Consol. Entries				Consolidated As Reported
Year ended December 31, 2016
Revenues:
Insurance net earned premiums	$	4,352	$	—	$	—			$	4,352
Net investment income	1,733		—		(37		)	(b)	1,696
Realized gains on:
Securities	19		—		—				19
Subsidiaries	2		—		—				2
Income of managed investment entities:
Investment income	—		190		—				190
Gain on change in fair value of assets/liabilities	—		8		7			(b)	15
Other income	241		—		(17		)	(c)	224
Total revenues	6,347		198		(47		)		6,498
Costs and Expenses:
Insurance benefits and expenses	5,130		—		—				5,130
Expenses of managed investment entities	—		197		(46		)	(b)(c)	151
Interest charges on borrowed money and other expenses	430		—		—				430
Total costs and expenses	5,560		197		(46		)		5,711
Earnings before income taxes	787		1		(1		)		787
Provision for income taxes	119		—		—				119
Net earnings, including noncontrolling interests	668		1		(1		)		668
Less: Net earnings attributable to noncontrolling interests	19		—		—				19
Net earnings attributable to shareholders	$	649	$	1	$	(1	)		$	649

(a) Includes income of $37 million representing the change in fair value of AFG’s CLO investments plus $17 million in CLO management fees earned.

(b) Elimination of the change in fair value of AFG’s investments in the CLOs, including $29 million in distributions recorded as interest expense by the CLOs.

(c) Elimination of management fees earned by AFG.

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RESULTS OF OPERATIONS

General AFG’s net earnings attributable to shareholders, determined in accordance with GAAP, include certain items that may not be indicative of its ongoing core operations. For example, core net operating earnings excludes realized gains (losses) on securities because such gains and losses are influenced significantly by financial markets, interest rates and the timing of sales. Similarly, significant gains and losses from the sale of real estate are excluded from core earnings as they are influenced by the timing of sales and realized gains (losses) and significant tax benefits (charges) related to subsidiaries are excluded because such gains and losses are largely the result of the changing business strategy and market opportunities. In addition, special charges related to coverage that AFG no longer writes, such as the Neon exited lines and for asbestos and environmental exposures are excluded from core earnings. The following table (in millions, except per share amounts) identifies non-core items and reconciles net earnings attributable to shareholders to core net operating earnings, a non-GAAP financial measure. AFG believes core net operating earnings is a useful tool for investors and analysts in analyzing ongoing operating trends and for management to evaluate financial performance against historical results because it believes this provides a more comparable measure of its continuing business.

	Three months ended December 31,						Year ended December 31,
	2018			2017			2018			2017			2016
Components of net earnings (loss) attributable to shareholders:
Core operating earnings before income taxes	$	199		$	283		$	932		$	865		$	840
Pretax non-core items:
Realized gains (losses) on securities	(238		)	6			(266		)	5			19
Realized gain on long-term care business	—			—			—			—			2
Gain on sale of apartment property	—			—			—			—			32
Special A&E charges	—			—			(27		)	(113		)	(41		)
Neon exited lines charge	—			18			—			18			(65		)
Loss on retirement of debt	—			(40		)	—			(51		)	—
Earnings (loss) before income taxes	(39		)	267			639			724			787
Provision (credit) for income taxes:
Core operating earnings	46			86			184			275			290
Non-core items:
Realized gains (losses) on securities	(50		)	2			(56		)	2			7
Tax benefit related to Neon restructuring	—			(56		)	—			(56		)	(111		)
Tax expense related to change in U.S. corporate tax rate	—			83			—			83			—
Tax benefit related to National Interstate merger	—			—			—			—			(66		)
Other	—			(14		)	(6		)	(57		)	(1		)
Total provision (credit) for income taxes	(4		)	101			122			247			119
Net earnings (loss), including noncontrolling interests	(35		)	166			517			477			668
Less net earnings (losses) attributable to noncontrolling interests:
Core operating earnings	(6		)	—			(13		)	2			16
Non-core items	—			—			—			—			3
Total net earnings (losses) attributable to noncontrolling interests	(6		)	—			(13		)	2			19
Net earnings (loss) attributable to shareholders	$	(29	)	$	166		$	530		$	475		$	649
Net earnings (loss):
Core net operating earnings	$	159		$	197		$	761		$	588		$	534
Non-core items	(188		)	(31		)	(231		)	(113		)	115
Net earnings (loss) attributable to shareholders	$	(29	)	$	166		$	530		$	475		$	649
Diluted per share amounts:
Core net operating earnings	$	1.75		$	2.20		$	8.40		$	6.55		$	6.03
Realized gains (losses) on securities	(2.08		)	0.04			(2.31		)	0.03			0.16
Realized gain on long-term care business	—			—			—			—			0.01
Gain on sale of apartment property	—			—			—			—			0.17
Special A&E charges	—			—			(0.24		)	(0.82		)	(0.30		)
Neon exited lines charge	—			0.19			—			0.19			(0.73		)
Loss on retirement of debt	—			(0.29		)	—			(0.37		)	—
Tax benefit related to Neon restructuring	—			0.62			—			0.62			1.25
Tax expense related to change in U.S. corporate tax rate	—			(0.92		)	—			(0.92		)	—
Tax benefit related to National Interstate merger	—			—			—			—			0.74
Net earnings (loss) attributable to shareholders	$	(0.33	)	$	1.84		$	5.85		$	5.28		$	7.33

AFG reported a net loss attributable to shareholders of $29 million in the fourth quarter of 2018 compared to net earnings attributable to shareholders of $166 million in the fourth quarter of 2017. Results for the fourth quarter of 2018 include $188 million in non-core net realized losses on securities. Comparatively, net earnings in the 2017 fourth quarter were

49

adversely impacted by $31 million in net non-core items. The change in the U.S. corporate tax rate from 35% to 21%, effective January 1, 2018, contributed to a lower effective tax rate in 2018 as compared to 2017. Core net operating earnings decreased$38 million in the fourth quarter of 2018 compared to the same period in 2017 reflecting lower earnings in the annuity segment and lower underwriting profit in the property and casualty insurance segment, partially offset by higher net investment income in the property and casualty insurance segment, lower holding company expenses and the lower corporate income tax rate. Realized losses on securities in the fourth quarter of 2018 includes the decline in fair value of equity securities that are required to be carried at fair value through net earnings under new accounting guidance adopted on January 1, 2018. Included in the $188 million of non-core net realized losses on securities in the fourth quarter of 2018 were $179 million in net losses on equity securities that AFG continued to own at December 31, 2018.

Net earnings attributable to shareholders increased$55 million for the full-year of 2018 compared to the same period in 2017 due primarily to higher core net operating earnings, lower special A&E charges recorded in 2018 compared to 2017, losses on the retirement of debt in 2017 and the 2017 tax expense related to the change in the U.S. corporate tax rate, partially offset by net realized losses on securities in 2018 compared to net realized gains on securities in 2017, the 2017 favorable development in the Neon exited lines in connection with a reinsurance to close transaction and the 2017 tax benefit from restructuring at Neon. Core net operating earnings increased$173 million in 2018 compared to 2017 reflecting higher net investment income in the property and casualty insurance segment, lower interest charges on borrowed money, lower holding company expenses and a lower corporate income tax rate, partially offset by lower earnings in the annuity segment and income from the sale of real estate in 2017. Realized losses on securities in 2018 includes the decline in fair value of equity securities that are required to be carried at fair value through net earnings under new accounting guidance adopted on January 1, 2018. Included in the $210 million of non-core net realized losses on securities in 2018 were $214 million in net losses on equity securities that AFG continued to own at December 31, 2018.

Net earnings attributable to shareholders decreased $174 million for the full-year of 2017 compared to the same period in 2016 due primarily to the 2017 tax expense related to the change in the U.S. corporate tax rate, the 2016 tax benefits related to the National Interstate merger and Neon restructuring, higher special A&E charges recorded in 2017 compared to 2016, lower net realized gains on securities in 2017 compared to 2016, a gain on the sale of an apartment property in 2016 and losses on the retirement of debt in 2017, partially offset by a 2016 charge related to the exit of certain lines of business within Neon and favorable development in 2017 on the Neon exited lines in connection with a reinsurance to close transaction, the 2017 tax benefit from restructuring at Neon and higher core net operating earnings. Core net operating earnings increased $54 million in 2017 compared to 2016 reflecting higher earnings in the property and casualty insurance and annuity segments.

50

RESULTS OF OPERATIONS — QUARTERS ENDED DECEMBER 31, 2018 AND 2017

Segmented Statement of Earnings   AFG reports its business as three segments: (i) Property and casualty insurance (“P&C”), (ii) Annuity and (iii) Other, which includes run-off long-term care and life, holding company costs and income and expenses related to the managed investment entities (“MIEs”).

Effective January 1, 2018, the results of AFG’s run-off long-term care and life businesses are included in the “Other” segment instead of as a separate reportable segment based on the immaterial size of the remaining operations. Prior periods amounts were reclassified for consistent presentation.

AFG’s net earnings attributable to shareholders, determined in accordance with GAAP, include certain items that may not be indicative of its ongoing core operations. The following tables for the three months ended December 31, 2018 and 2017 identify such items by segment and reconcile net earnings attributable to shareholders to core net operating earnings, a non-GAAP financial measure that AFG believes is a useful tool for investors and analysts in analyzing ongoing operating trends (in millions):

						Other
	P&C			Annuity		Consol. MIEs			Holding Co., other and unallocated			Total			Non-core reclass			GAAP Total
Three months ended December 31, 2018
Revenues:
Property and casualty insurance net earned premiums	$	1,270		$	—	$	—		$	—		$	1,270		$	—		$	1,270
Life, accident and health net earned premiums	—			—		—			6			6			—			6
Net investment income	115			419		4			4			542			—			542
Realized losses on securities	—			—		—			—			—			(238		)	(238		)
Income (loss) of MIEs:
Investment income	—			—		68			—			68			—			68
Gain (loss) on change in fair value of assets/liabilities	—			—		(11		)	—			(11		)	—			(11		)
Other income	2			27		(4		)	28			53			—			53
Total revenues	1,387			446		57			38			1,928			(238		)	1,690
Costs and Expenses:
Property and casualty insurance:
Losses and loss adjustment expenses	797			—		—			—			797			—			797
Commissions and other underwriting expenses	372			—		—			6			378			—			378
Annuity benefits	—			334		—			—			334			—			334
Life, accident and health benefits	—			—		—			8			8			—			8
Annuity and supplemental insurance acquisition expenses	—			56		—			2			58			—			58
Interest charges on borrowed money	—			—		—			16			16			—			16
Expenses of MIEs	—			—		57			—			57			—			57
Other expenses	10			36		—			35			81			—			81
Total costs and expenses	1,179			426		57			67			1,729			—			1,729
Earnings (loss) before income taxes	208			20		—			(29		)	199			(238		)	(39		)
Provision (credit) for income taxes	49			5		—			(8		)	46			(50		)	(4		)
Net earnings (loss), including noncontrolling interests	159			15		—			(21		)	153			(188		)	(35		)
Less: Net earnings (losses) attributable to noncontrolling interests	(6		)	—		—			—			(6		)	—			(6		)
Core Net Operating Earnings	165			15		—			(21		)	159
Non-core earnings attributable to shareholders (a):
Realized losses on securities, net of tax	—			—		—			(188		)	(188		)	188			—
Net Earnings (Loss) Attributable to Shareholders	$	165		$	15	$	—		$	(209	)	$	(29	)	$	—		$	(29	)

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						Other
	P&C			Annuity		Consol. MIEs			Holding Co., other and unallocated			Total			Non-core reclass			GAAP Total
Three months ended December 31, 2017
Revenues:
Property and casualty insurance net earned premiums	$	1,225		$	—	$	—		$	—		$	1,225		$	—		$	1,225
Life, accident and health net earned premiums	—			—		—			5			5			—			5
Net investment income	86			376		(7		)	10			465			—			465
Realized gains on securities	—			—		—			—			—			6			6
Income of MIEs:
Investment income	—			—		55			—			55			—			55
Gain on change in fair value of assets/liabilities	—			—		—			—			—			—			—
Other income	7			24		(4		)	25			52			—			52
Total revenues	1,318			400		44			40			1,802			6			1,808
Costs and Expenses:
Property and casualty insurance:
Losses and loss adjustment expenses	734			—		—			—			734			(18		)	716
Commissions and other underwriting expenses	336			—		—			9			345			—			345
Annuity benefits	—			257		—			—			257			—			257
Life, accident and health benefits	—			—		—			5			5			—			5
Annuity and supplemental insurance acquisition expenses	—			15		—			2			17			—			17
Interest charges on borrowed money	—			—		—			20			20			—			20
Expenses of MIEs	—			—		44			—			44			—			44
Other expenses	15			31		—			51			97			40			137
Total costs and expenses	1,085			303		44			87			1,519			22			1,541
Earnings before income taxes	233			97		—			(47		)	283			(16		)	267
Provision for income taxes	69			32		—			(15		)	86			15			101
Net earnings, including noncontrolling interests	164			65		—			(32		)	197			(31		)	166
Less: Net earnings attributable to noncontrolling interests	—			—		—			—			—			—			—
Core Net Operating Earnings	164			65		—			(32		)	197
Non-core earnings attributable to shareholders (a):
Realized gains on securities, net of tax	—			—		—			4			4			(4		)	—
Neon exited lines charge	18			—		—			—			18			(18		)	—
Loss on retirement of debt, net of tax	—			—		—			(26		)	(26		)	26			—
Tax benefit related to Neon restructuring	56			—		—			—			56			(56		)	—
Tax expense related to change in U.S. corporate tax rate	(88		)	25		—			(20		)	(83		)	83			—
Net Earnings Attributable to Shareholders	$	150		$	90	$	—		$	(74	)	$	166		$	—		$	166

(a) See the reconciliation of core earnings to GAAP net earnings under “Results of Operations — General” for details on the tax and noncontrolling interest impacts of these reconciling items.

Property and Casualty Insurance Segment — Results of Operations   Performance measures such as underwriting profit or loss and related combined ratios are often used by property and casualty insurers to help users of their financial statements better understand the company’s performance. Underwriting profitability is measured by the combined ratio, which is a sum of the ratios of losses and loss adjustment expenses, and commissions and other underwriting expenses to premiums. A combined ratio under 100% indicates an underwriting profit. The combined ratio does not reflect net investment income, other income, other expenses or federal income taxes.

AFG’s property and casualty insurance operations contributed $208 million in GAAP pretax earnings in the fourth quarter of 2018 compared to $251 million in the fourth quarter of 2017, a decrease of $43 million (17%). Property and casualty core pretax earnings were $208 million in the fourth quarter of 2018 compared to $233 million in the fourth quarter of 2017, a decrease of $25 million (11%). The decrease in GAAP and core pretax earnings reflects lower underwriting profits in the Property and transportation and Specialty casualty sub-segments, partially offset by higher net investment income due to higher

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earnings from limited partnerships and similar investments. The high returns from limited partnerships and similar investments should not be expected to repeat in future periods. The decrease in GAAP pretax earnings also reflects the impact of favorable development in the fourth quarter of 2017 in the Neon exited lines in connection with a reinsurance to close transaction.

The following table details AFG’s earnings before income taxes from its property and casualty insurance operations for the three months ended December 31, 2018 and 2017 (dollars in millions):

	Three months ended December 31,
	2018			2017			% Change
Gross written premiums	$	1,613		$	1,571		3	%
Reinsurance premiums ceded	(405		)	(410		)	(1	%)
Net written premiums	1,208			1,161			4	%
Change in unearned premiums	62			64			(3	%)
Net earned premiums	1,270			1,225			4	%
Loss and loss adjustment expenses (*)	797			734			9	%
Commissions and other underwriting expenses	372			336			11	%
Core underwriting gain	101			155			(35	%)
Net investment income	115			86			34	%
Other income and expenses, net	(8		)	(8		)	—	%
Core earnings before income taxes	208			233			(11	%)
Pretax non-core Neon exited lines charge	—			18			(100	%)
GAAP earnings before income taxes	$	208		$	251		(17	%)
(*) Excludes pretax non-core income of $18 million in the fourth quarter of 2017 representing favorable development related to the Neon exited lines in connection with a reinsurance to close transaction.
Combined Ratios:
Specialty lines							Change
Loss and LAE ratio	62.7		%	59.8		%	2.9	%
Underwriting expense ratio	29.3		%	27.5		%	1.8	%
Combined ratio	92.0		%	87.3		%	4.7	%
Aggregate — including exited lines
Loss and LAE ratio	62.7		%	58.5		%	4.2	%
Underwriting expense ratio	29.3		%	27.5		%	1.8	%
Combined ratio	92.0		%	86.0		%	6.0	%

AFG’s statutory combined ratio has been better than the U.S. industry average for 31 of the last 33 years. Management believes that AFG’s insurance operations have performed better than the industry as a result of its specialty niche focus, product line diversification, stringent underwriting discipline and alignment of compensation incentives.

AFG reports the underwriting performance of its Specialty property and casualty insurance business in the following sub-segments: (i) Property and transportation, (ii) Specialty casualty and (iii) Specialty financial.

To understand the overall profitability of particular lines, the timing of claims payments and the related impact of investment income must be considered. Certain “short-tail” lines of business (primarily property coverages) generally have quick loss payouts, which reduce the time funds are held, thereby limiting investment income earned thereon. In contrast, “long-tail” lines of business (primarily liability coverages and workers’ compensation) generally have payouts that are either structured over many years or take many years to settle, thereby significantly increasing investment income earned on related premiums received.

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Gross Written Premiums

Gross written premiums (“GWP”) for AFG’s property and casualty insurance segment were $1.61 billion for the fourth quarter of 2018 compared to $1.57 billion for the fourth quarter of 2017, an increase of $42 million (3%). Detail of AFG’s property and casualty gross written premiums is shown below (dollars in millions):

	Three months ended December 31,
	2018				2017
	GWP		%		GWP		%		% Change
Property and transportation	$	651	40	%	$	626	40	%	4	%
Specialty casualty	778		48	%	737		47	%	6	%
Specialty financial	184		12	%	208		13	%	(12	%)
	$	1,613	100	%	$	1,571	100	%	3	%

Reinsurance Premiums Ceded

Reinsurance premiums ceded (“Ceded”) for AFG’s property and casualty insurance segment were 25% of gross written premiums for the fourth quarter of 2018 compared to 26% for the fourth quarter of 2017, a decrease of 1 percentage point. Detail of AFG’s property and casualty reinsurance premiums ceded is shown below (dollars in millions):

	Three months ended December 31,
	2018					2017					Change in
	Ceded			% of GWP		Ceded			% of GWP		% of GWP
Property and transportation	$	(203	)	31	%	$	(202	)	32	%	(1	%)
Specialty casualty	(197		)	25	%	(182		)	25	%	—	%
Specialty financial	(42		)	23	%	(52		)	25	%	(2	%)
Other specialty	37					26
	$	(405	)	25	%	$	(410	)	26	%	(1	%)

Net Written Premiums

Net written premiums (“NWP”) for AFG’s property and casualty insurance segment were $1.21 billion for the fourth quarter of 2018 compared to $1.16 billion for the fourth quarter of 2017, an increase of $47 million (4%). Detail of AFG’s property and casualty net written premiums is shown below (dollars in millions):

	Three months ended December 31,
	2018				2017
	NWP		%		NWP		%		% Change
Property and transportation	$	448	37	%	$	424	37	%	6	%
Specialty casualty	581		48	%	555		48	%	5	%
Specialty financial	142		12	%	156		13	%	(9	%)
Other specialty	37		3	%	26		2	%	42	%
	$	1,208	100	%	$	1,161	100	%	4	%

Net Earned Premiums

Net earned premiums (“NEP”) for AFG’s property and casualty insurance segment were $1.27 billion for the fourth quarter of 2018 compared to $1.23 billion for the fourth quarter of 2017, an increase of $45 million (4%). Detail of AFG’s property and casualty net earned premiums is shown below (dollars in millions):

	Three months ended December 31,
	2018				2017
	NEP		%		NEP		%		% Change
Property and transportation	$	479	38	%	$	485	40	%	(1	%)
Specialty casualty	613		48	%	573		47	%	7	%
Specialty financial	141		11	%	141		11	%	—	%
Other specialty	37		3	%	26		2	%	42	%
	$	1,270	100	%	$	1,225	100	%	4	%

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The $42 million (3%) increase in gross written premiums in the fourth quarter of 2018 compared to the fourth quarter of 2017 reflects growth in the Property and transportation and Specialty casualty sub-segments, partially offset by lower gross written premiums in the Specialty financial sub-segment. Excluding the impact of the timing of renewal of two large accounts in the Property and transportation sub-segment, gross written premiums increased approximately 1% in the fourth quarter of 2018 compared to the prior year period. Overall average renewal rates increased approximately 2% in the fourth quarter of 2018. Excluding the workers’ compensation business, renewal pricing increased approximately 4%.

Property and transportation Gross written premiums increased$25 million (4%) in the fourth quarter of 2018 compared to the fourth quarter of 2017. This increase was largely the result of a change in the timing of two large policy renewals in one of the transportation businesses from the third quarter to the fourth quarter of 2018. Excluding the impact of the timing of these policy renewals, gross written premiums increased 1% in the fourth quarter of 2018 compared to the fourth quarter of 2017. Lower year-over-year premiums in the crop insurance business and underwriting actions on under-performing accounts in the Singapore branch also impacted fourth quarter premiums. Average renewal rates increased approximately 3% for this group in the fourth quarter of 2018. Reinsurance premiums ceded as a percentage of gross written premiums decreased 1 percentage point for the fourth quarter of 2018 compared to the fourth quarter of 2017. Lower cessions in the crop insurance business were partially offset by reinstatement premiums in the aviation business.

Specialty casualty Gross written premiums increased$41 million (6%) in the fourth quarter of 2018 compared to the fourth quarter of 2017. Higher premiums within Neon, resulting from the growth of its portfolio in targeted classes of business, along with growth in several other businesses and the addition of ABA Insurance Services, were partially offset by lower premiums in the workers’ compensation businesses. Average renewal rates for this group were flat in the fourth quarter of 2018. Excluding the workers’ compensation businesses, renewal rates for this group increased approximately 4%. Reinsurance premiums ceded as a percentage of gross written premiums were comparable between periods. Higher cessions to AFG’s internal reinsurance program, which is included in Other specialty and higher cessions in the workers’ compensation businesses were offset by lower reinstatement premiums resulting from reinsured hurricane losses in the 2018 period compared to the 2017 period.

Specialty financial Gross written premiums decreased$24 million (12%) in the fourth quarter of 2018 compared to the fourth quarter of 2017, due primarily to the timing of several new accounts in the lending and leasing businesses in 2017. Average renewal rates for this group increased approximately 5% in the fourth quarter of 2018. Reinsurance premiums ceded as a percentage of gross written premiums decreased 2 percentage points for the fourth quarter of 2018 compared to the fourth quarter of 2017 reflecting lower cessions in the equipment leasing business.

Other specialty The amounts shown as reinsurance premiums ceded represent business assumed by AFG’s internal reinsurance program from the operations that make up AFG’s other Specialty property and casualty insurance sub-segments. Reinsurance premiums assumed increased$11 million (42%) in the fourth quarter of 2018 compared to the fourth quarter of 2017, reflecting an increase in premiums retained, primarily from businesses in the Specialty casualty sub-segment.

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Combined Ratio

Performance measures such as the combined ratio are often used by property and casualty insurers to help users of their financial statements better understand the company’s performance. The combined ratio is the sum of the loss and loss adjustment expenses (“LAE”) and underwriting expense ratios. These ratios are calculated by dividing each of the respective expenses by net earned premiums. The table below (dollars in millions) details the components of the combined ratio for AFG’s property and casualty insurance segment:

	Three months ended December 31,						Three months ended December 31,
	2018		2017		Change		2018		2017
Property and transportation
Loss and LAE ratio	68.2	%	67.1	%	1.1	%
Underwriting expense ratio	18.3	%	15.5	%	2.8	%
Combined ratio	86.5	%	82.6	%	3.9	%
Underwriting profit							$	64	$	84
Specialty casualty
Loss and LAE ratio	63.5	%	59.1	%	4.4	%
Underwriting expense ratio	33.0	%	30.9	%	2.1	%
Combined ratio	96.5	%	90.0	%	6.5	%
Underwriting profit							$	22	$	58
Specialty financial
Loss and LAE ratio	36.4	%	33.1	%	3.3	%
Underwriting expense ratio	49.1	%	53.1	%	(4.0	%)
Combined ratio	85.5	%	86.2	%	(0.7	%)
Underwriting profit							$	20	$	19
Total Specialty
Loss and LAE ratio	62.7	%	59.8	%	2.9	%
Underwriting expense ratio	29.3	%	27.5	%	1.8	%
Combined ratio	92.0	%	87.3	%	4.7	%
Underwriting profit							$	102	$	156
Aggregate — including exited lines
Loss and LAE ratio	62.7	%	58.5	%	4.2	%
Underwriting expense ratio	29.3	%	27.5	%	1.8	%
Combined ratio	92.0	%	86.0	%	6.0	%
Underwriting profit							$	101	$	173

The Specialty property and casualty insurance operations generated an underwriting profit of $102 million for the fourth quarter of 2018 compared to $156 million in the fourth quarter of 2017, a decrease of $54 million (35%). Lower underwriting profitability in the Specialty casualty sub-segment, due primarily to higher catastrophe losses and lower favorable reserve development at Neon, and lower underwriting profit in the Property and transportation sub-segment, primarily the result of lower crop earnings, contributed to these results. Overall catastrophe losses were $39 million (3.0 points on the combined ratio) in the fourth quarter of 2018 compared to $8 million (0.6 points) in the fourth quarter of 2017. Net reinstatement premiums related to catastrophe losses were less than $1 million in the fourth quarter of 2018. In connection with catastrophe losses incurred in the fourth quarter of 2017, AFG paid $4 million in net reinstatement premiums, resulting in a total pretax loss from catastrophes of $12 million for the quarter. Losses related to third quarter 2018 catastrophes, primarily Hurricane Florence, developed favorably by $7 million, primarily in the Property and transportation and Specialty financial sub-segments. Losses related to third quarter 2017 catastrophes, specifically Hurricanes Harvey, Irma and Maria, and two earthquakes in Mexico, developed favorably by $25 million during the fourth quarter of 2017 across all property and casualty sub-segments.

Property and transportation Underwriting profit for this group was $64 million for the fourth quarter of 2018 compared to $84 million in the fourth quarter of 2017, a decrease of $20 million (24%). Improved underwriting results in the transportation, property and inland marine and ocean marine operations were more than offset by lower underwriting profits in the agricultural businesses and the Singapore branch. The crop insurance operations reported strong profitability in the fourth quarter of 2018, albeit at lower levels than the fourth quarter of 2017. Catastrophe losses for this group had a favorable impact of $2 million in

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the fourth quarter of 2018, compared to a favorable impact of $3 million in the 2017 fourth quarter, with catastrophe losses reported from the previous quarter developing favorably in the fourth quarters of both years.

Specialty casualty Underwriting profit for this group was $22 million for the fourth quarter of 2018 compared to $58 million for the fourth quarter of 2017, a decrease of $36 million (62%). Lower underwriting profit within Neon, primarily the result of higher 2018 catastrophe losses and lower year-over-year favorable reserve development due to the fourth quarter 2017 Neon reinsurance to close transaction, and to a lesser extent, lower profitability in the workers’ compensation businesses contributed to the decrease in underwriting profit in the fourth quarter of 2018 compared to the prior year period. Higher underwriting profits in the excess and surplus lines and targeted markets businesses partially offset these results. Catastrophe losses were $28 million (4.7 points on the combined ratio) for the fourth quarter of 2018 compared to $14 million (2.5 points) and related net reinstatement premiums paid of $4 million for the fourth quarter of 2017. Catastrophe losses for the fourth quarter of 2017 include the impact of the favorable reserve development on third quarter catastrophes discussed above.

Specialty financial Underwriting profit for this group was $20 million for the fourth quarter of 2018 compared to $19 million in the fourth quarter of 2017, an increase of $1 million (5%). Each business within this group achieved profitable underwriting results in both periods. Catastrophe losses were $10 million (7.1 points on the combined ratio) for the fourth quarter of 2018 compared to the favorable impact of catastrophes of $5 million (3.7 points) for the fourth quarter of 2017. Catastrophe losses reported from the previous quarter developed favorably in the fourth quarters of both years.

Other specialty This group reported an underwriting loss of $4 million for the fourth quarter of 2018 compared to $5 million in the fourth quarter of 2017, an improvement of $1 million (20%). The underwriting loss in the fourth quarter of 2018 is due primarily to losses in the business assumed by AFG’s internal reinsurance program from the operations that make up AFG’s other Specialty sub-segments. The underwriting loss in the fourth quarter of 2017 is due primarily to an $8 million charge to adjust the deferred gain on the retroactive reinsurance transaction entered into in connection with the sale of businesses in 1998.

Aggregate Aggregate underwriting results for AFG’s property and casualty insurance segment for the fourth quarter of 2017 includes favorable development in the Neon exited lines discussed in more detail below under “Net prior year reserve development.”

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Losses and Loss Adjustment Expenses

AFG’s overall loss and LAE ratio was 62.7% for the fourth quarter of 2018 compared to 58.5% for fourth quarter of 2017, an increase of 4.2 percentage points. The components of AFG’s property and casualty losses and LAE amounts and ratio are detailed below (dollars in millions):

	Three months ended December 31,
	Amount						Ratio				Change in
	2018			2017			2018		2017		Ratio
Property and transportation
Current year, excluding catastrophe losses	$	335		$	332		69.9	%	68.5	%	1.4	%
Prior accident years development	(7		)	(4		)	(1.5	%)	(0.8	%)	(0.7	%)
Current year catastrophe losses	(1		)	(3		)	(0.2	%)	(0.6	%)	0.4	%
Property and transportation losses and LAE and ratio	$	327		$	325		68.2	%	67.1	%	1.1	%
Specialty casualty
Current year, excluding catastrophe losses	$	413		$	376		67.3	%	65.8	%	1.5	%
Prior accident years development	(52		)	(52		)	(8.5	%)	(9.2	%)	0.7	%
Current year catastrophe losses	28			14			4.7	%	2.5	%	2.2	%
Specialty casualty losses and LAE and ratio	$	389		$	338		63.5	%	59.1	%	4.4	%
Specialty financial
Current year, excluding catastrophe losses	$	48		$	51		34.5	%	36.0	%	(1.5	%)
Prior accident years development	(7		)	1			(5.2	%)	0.8	%	(6.0	%)
Current year catastrophe losses	10			(5		)	7.1	%	(3.7	%)	10.8	%
Specialty financial losses and LAE and ratio	$	51		$	47		36.4	%	33.1	%	3.3	%
Total Specialty
Current year, excluding catastrophe losses	$	818		$	774		64.4	%	63.3	%	1.1	%
Prior accident years development	(61		)	(49		)	(4.7	%)	(4.1	%)	(0.6	%)
Current year catastrophe losses	39			8			3.0	%	0.6	%	2.4	%
Total Specialty losses and LAE and ratio	$	796		$	733		62.7	%	59.8	%	2.9	%
Aggregate — including exited lines
Current year, excluding catastrophe losses	$	819		$	774		64.4	%	63.3	%	1.1	%
Prior accident years development	(61		)	(66		)	(4.7	%)	(5.4	%)	0.7	%
Current year catastrophe losses	39			8			3.0	%	0.6	%	2.4	%
Aggregate losses and LAE and ratio	$	797		$	716		62.7	%	58.5	%	4.2	%

Current accident year losses and LAE, excluding catastrophe losses

The current accident year loss and LAE ratio, excluding catastrophe losses for AFG’s Specialty property and casualty insurance operations was 64.4% for the fourth quarter of 2018 compared to 63.3% for the fourth quarter of 2017, an increase of 1.1 percentage points.

Property and transportation   The 1.4 percentage points increase in the loss and LAE ratio for the current year, excluding catastrophe losses reflects an increase in the loss and LAE ratio in the aviation business and the Singapore branch, partially offset by a decrease in the loss and LAE ratio in the trucking business.

Specialty casualty   The 1.5 percentage points increase in the loss and LAE ratio for the current year, excluding catastrophe losses reflects an increase in the loss and LAE ratio at Neon.

Specialty financial   The 1.5 percentage points decrease in the loss and LAE ratio for the current year, excluding catastrophe losses reflects a decrease in the loss and LAE ratio of the equipment leasing and financial institutions businesses.

Net prior year reserve development

AFG’s Specialty property and casualty insurance operations recorded net favorable reserve development related to prior accident years of $61 million in the fourth quarter of 2018 compared to $49 million in the fourth quarter of 2017, an increase of $12 million (24%).

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Property and transportation   Net favorable reserve development of $7 million in the fourth quarter of 2018 reflects lower than expected claim frequency and severity at National Interstate and lower than expected losses in the crop business. Net favorable reserve development of $4 million in the fourth quarter of 2017 reflects lower than expected losses in the crop business and lower than expected claim severity in the property and inland marine and trucking businesses, partially offset by higher than expected claim severity and frequency in the ocean marine business.

Specialty casualty   Net favorable reserve development of $52 million in the fourth quarter of 2018 reflects lower than anticipated claim severity in the workers’ compensation businesses and lower than expected emergence in assumed 2017 property catastrophe losses at Neon. Net favorable reserve development of $52 million in the fourth quarter of 2017 reflects favorable reserve development on ongoing lines of business within Neon recorded in connection with the reinsurance to close agreement entered into in December 2017 for the 2015 and prior years of account, lower than anticipated claim severity in the workers’ compensation businesses and lower than expected losses in the executive liability business, partially offset by higher than anticipated claim severity in the targeted markets businesses and higher than anticipated severity in New York contractor claims.

In the fourth quarter of 2017, Neon entered into a reinsurance to close agreement for its 2015 and prior years of account, which transfers the responsibility for all of the liabilities that attach to the transferred year of account as well as any income due to the closing year of account in return for a premium. As a result of the reinsurance to close agreement, Neon recorded favorable development of $42 million, of which $24 million related to its ongoing lines of business (included in Specialty casualty) and $18 million related to the exited lines of business (treated as non-core). See “Net prior year reserve development” under “Results of Operations — Property and Casualty Insurance Segment” for the years ended 2018, 2017 and 2016.

Specialty financial   Net favorable reserve development of $7 million in the fourth quarter of 2018 reflects lower than expected claim frequency and severity in the surety business and lower than anticipated claim frequency in run-off businesses. Net adverse reserve development of $1 million in the fourth quarter of 2017 reflects higher than expected claim severity in the financial institutions business, partially offset by lower than anticipated claim frequency and severity in the surety business.

Other specialty In addition to the reserve development discussed above, total Specialty prior year reserve development for the fourth quarter of 2018 includes net adverse reserve development of $5 million, reflecting adverse development associated with AFG’s internal reinsurance program, partially offset by amortization of deferred gains on retroactive reinsurance. Total Specialty prior year reserve development for the fourth quarter of 2017 includes net adverse reserve development of $6 million, reflecting an $8 million charge to adjust the deferred gain on the retroactive reinsurance transaction entered into in connection with the sale of businesses in 1998, partially offset by the amortization of deferred gains on retroactive reinsurance.

Aggregate Aggregate net prior accident years reserve development for AFG’s property and casualty insurance segment for the fourth quarter of 2017 includes the favorable development on the Neon exited lines discussed above and adverse reserve development of $1 million related to business outside of the Specialty group that AFG no longer writes.

Catastrophe losses

AFG generally seeks to reduce its exposure to catastrophes through individual risk selection, including minimizing coastal and known fault-line exposures, and the purchase of reinsurance. Based on data available at December 31, 2018, AFG’s exposure to a catastrophic earthquake or windstorm that industry models indicate should statistically occur once in every 100, 250 or 500 years as a percentage of AFG’s Shareholders’ Equity is shown below:

	Impact of modeled loss on AFG’s
Industry Model	Shareholders’ Equity
100-year event	Less than 1%
250-year event	Less than 3%
500-year event	Approximately 6%

AFG maintains comprehensive catastrophe reinsurance coverage, including a $15 million per occurrence net retention for its U.S.-based property and casualty insurance operations for losses up to $100 million and a separate $25 million per occurrence retention for Neon for losses up to $250 million. AFG’s property and casualty insurance operations further maintain supplemental fully collateralized reinsurance coverage up to 95% of $200 million for catastrophe losses in excess of $104 million of traditional catastrophe reinsurance through a catastrophe bond.

Catastrophe losses of $39 million in the fourth quarter of 2018 resulted primarily from Hurricane Michael and wildfires in California. Catastrophe losses of $8 million in the fourth quarter of 2017 resulted primarily from wildfires in California,

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partially offset by favorable development related to third quarter 2017 catastrophe losses, specifically Hurricanes Harvey, Irma and Maria, and two earthquakes in Mexico.

Commissions and Other Underwriting Expenses

AFG’s property and casualty commissions and other underwriting expenses (“U/W Exp”) were $372 million in the fourth quarter of 2018 compared to $336 million for the fourth quarter of 2017, an increase of $36 million (11%). AFG’s underwriting expense ratio, calculated as commissions and other underwriting expenses divided by net premiums earned, was 29.3% for the fourth quarter of 2018 compared to 27.5% for the fourth quarter of 2017, an increase of 1.8 percentage points. Detail of AFG’s property and casualty commissions and other underwriting expenses and underwriting expense ratios is shown below (dollars in millions):

	Three months ended December 31,
	2018				2017				Change in
	U/W Exp		% of NEP		U/W Exp		% of NEP		% of NEP
Property and transportation	$	88	18.3	%	$	76	15.5	%	2.8	%
Specialty casualty	202		33.0	%	177		30.9	%	2.1	%
Specialty financial	70		49.1	%	75		53.1	%	(4.0	%)
Other specialty	12		35.8	%	8		36.8	%	(1.0	%)
	$	372	29.3	%	$	336	27.5	%	1.8	%

Property and transportation   Commissions and other underwriting expenses as a percentage of net earned premiums increased2.8 percentage points in the fourth quarter of 2018 compared to the fourth quarter of 2017 reflecting lower premiums in the crop business, which has a lower expense ratio than AFG’s overall Property and transportation group and an increase in the expense ratio in the transportation businesses.

Specialty casualty   Commissions and other underwriting expenses as a percentage of net earned premiums increased2.1 percentage points in the fourth quarter of 2018 compared to the fourth quarter of 2017 reflecting growth at Neon, which has a higher expense ratio than AFG’s overall Specialty casualty group, higher dividends paid to policyholders in the workers’ compensation businesses and lower underwriting, policy administration and claims services fees collected from unaffiliated insurers in the workers’ compensation businesses.

Specialty financial   Commissions and other underwriting expenses as a percentage of net earned premiums decreased4.0 percentage points in the fourth quarter of 2018 compared to the fourth quarter of 2017 reflecting lower profitability-based commissions paid to agents in the financial institutions business and the impact of higher premiums on the ratio in the international operations.

Property and Casualty Net Investment Income

Net investment income in AFG’s property and casualty insurance operations was $115 million in the fourth quarter of 2018 compared to $86 million in the fourth quarter of 2017, an increase of $29 million (34%). The average invested assets and overall yield earned on investments held by AFG’s property and casualty insurance operations are provided below (dollars in millions):

	Three months ended December 31,
	2018			2017			Change			% Change
Net investment income	$	115		$	86		$	29		34	%
Average invested assets (at amortized cost)	$	10,651		$	10,062		$	589		6	%
Yield (net investment income as a % of average invested assets)	4.32		%	3.42		%	0.90		%
Tax equivalent yield (*)	4.49		%	3.85		%	0.64		%

(*) Adjusts the yield on equity securities and tax-exempt bonds to the fully taxable equivalent yield.

The increase in net investment income in the property and casualty insurance segment for the fourth quarter of 2018 as compared to the fourth quarter of 2017 reflects growth in the property and casualty insurance segment and strong earnings from limited partnerships and similar investments. The property and casualty insurance segment’s overall yield on investments (net investment income as a percentage of average invested assets) was 4.32% for the fourth quarter of 2018 compared to 3.42% for the fourth quarter of 2017, an increase of 0.90 percentage points, reflecting the higher earnings of limited partnerships and

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similar investments. AFG’s property and casualty insurance operations recorded $22 million in earnings from partnerships and similar investments and AFG-managed CLOs in the fourth quarter of 2018 compared to $6 million in the fourth quarter of 2017, an increase of $16 million (267%). The annualized yield earned on these investments was 13.8% in the fourth quarter of 2018 compared to 4.1% in the prior year period. The high returns from limited partnerships and similar investments should not be expected to repeat in future periods.

Property and Casualty Other Income and Expenses, Net

Other income and expenses, net for AFG’s property and casualty insurance operations was a net expense of $8 million for both the fourth quarter of 2018 and the fourth quarter of 2017. The table below details the items included in other income and expenses, net for AFG’s property and casualty insurance operations (in millions):

	Three months ended December 31,
	2018			2017
Other income	$	2		$	7
Other expenses
Amortization of intangibles	2			2
Other	8			13
Total other expenses	10			15
Other income and expenses, net	$	(8	)	$	(8	)

Other income for AFG’s property and casualty insurance operations for the fourth quarter of 2017 includes a $3 million death benefit on a life insurance policy.

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Annuity Segment — Results of Operations

AFG’s annuity operations contributed $20 million in pretax earnings in the fourth quarter of 2018 compared to $97 million in the fourth quarter of 2017, a decrease of $77 million (79%). This decrease in AFG’s annuity segment results for the fourth quarter of 2018 as compared to the fourth quarter of 2017 is due primarily to the unfavorable impact of the significant decline in stock market performance on annuities with guaranteed withdrawal benefits and on the fair value of derivatives related to fixed-indexed annuities (“FIAs”) in the fourth quarter of 2018. AFG’s periodic detailed review (“unlocking”) of the major actuarial assumptions underlying its annuity operations resulted in a net annuity charge of $4 million in the fourth quarter of 2018 and $3 million in the fourth quarter of 2017.

The following table details AFG’s earnings before income taxes from its annuity operations for the three months ended December 31, 2018 and 2017 (dollars in millions):

	Three months ended December 31,
	2018		2017		% Change
Revenues:
Net investment income	$	419	$	376	11	%
Other income:
Guaranteed withdrawal benefit fees	17		17		—	%
Policy charges and other miscellaneous income	10		7		43	%
Total revenues	446		400		12	%
Costs and Expenses:
Annuity benefits (*)	334		257		30	%
Acquisition expenses	56		15		273	%
Other expenses	36		31		16	%
Total costs and expenses	426		303		41	%
Earnings before income taxes	$	20	$	97	(79	%)

(*) Details of the components of annuity benefits provided below.

The following tables provide analysis of AFG’s annuity earnings before income taxes (dollars in millions):

	Three months ended December 31,
	2018			2017			% Change
Earnings before income taxes — before the impact of unlocking and derivatives related to FIAs (see additional analysis below)	$	71		$	111		(36	%)
Unlocking	(4		)	(3		)	33	%
Impact of derivatives related to FIAs	(47		)	(11		)	327	%
Earnings before income taxes	$	20		$	97		(79	%)

The vast majority of AFG’s FIAs are indexed to the S&P 500, which decreased 14% in the fourth quarter of 2018. As highlighted in the table below, this poor stock market performance adversely impacted AFG’s earnings before income taxes from its annuity operations beyond the impact on derivatives related to FIAs by $30 million, particularly related to FIAs with guaranteed withdrawal benefits. If the stock market performance reverts back to AFG’s long-term expectation over the life of these policies, management expects a substantial portion of this unfavorable impact to reverse.

	Three months ended December 31,
	2018			2017		% Change
Earnings before income taxes — before the impact of unlocking, derivatives related to FIAs and other impacts of stock market performance on FIAs	$	101		$	104	(3	%)
Other impacts of stock market performance on FIAs:
FIAs with guaranteed withdrawal benefits	(22		)	5		(540	%)
DPAC associated with FIAs	(8		)	2		(500	%)
Earnings before income taxes — before the impact of unlocking and derivatives related to FIAs	$	71		$	111	(36	%)

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Annuity benefits consisted of the following (dollars in millions):

	Three months ended December 31,
	2018			2017			% Change
Interest credited — fixed	$	186		$	164		13	%
Interest credited — fixed component of variable annuities	1			1			—	%
Other annuity benefits:
Change in expected death and annuitization reserve	4			5			(20	%)
Amortization of sales inducements	4			5			(20	%)
Change in guaranteed withdrawal benefit reserve:
Impact of change in the stock market	22			(5		)	(540	%)
Accretion of benefits and other	24			21			14	%
Change in other benefit reserves	8			9			(11	%)
Total other annuity benefits	62			35			77	%
Total before impact of unlocking and derivatives related to FIAs	249			200			25	%
Unlocking	5			35			(86	%)
Derivatives related to fixed-indexed annuities:
Embedded derivative mark-to-market	(490		)	178			(375	%)
Equity option mark-to-market	570			(156		)	(465	%)
Impact of derivatives related to FIAs	80			22			264	%
Total annuity benefits	$	334		$	257		30	%

See “Annuity Unlocking” below for a discussion of the impact that the periodic review of actuarial assumptions had on annuity benefit expense.

Net Spread on Fixed Annuities (excludes variable annuity earnings)

The profitability of a fixed annuity business is largely dependent on the ability of a company to earn income on the assets supporting the business in excess of the amounts credited to policyholder accounts plus expenses incurred (earning a “spread”). Performance measures such as net interest spread and net spread earned are often presented by annuity businesses to help users of their financial statements better understand the company’s performance.

The table below (dollars in millions) details the components of these spreads for AFG’s fixed annuity operations (including fixed-indexed and variable-indexed annuities):

	Three months ended December 31,
	2018			2017			% Change
Average fixed annuity investments (at amortized cost)	$	35,993		$	32,245		12	%
Average fixed annuity benefits accumulated	36,103			32,680			10	%
As % of fixed annuity benefits accumulated (except as noted):
Net investment income (as % of fixed annuity investments)	4.64		%	4.62		%
Interest credited — fixed	(2.06		%)	(2.00		%)
Net interest spread	2.58		%	2.62		%
Policy charges and other miscellaneous income	0.08		%	0.10		%
Other annuity benefit expenses, net of guaranteed withdrawal benefit fees	(0.51		%)	(0.21		%)
Acquisition expenses	(0.59		%)	(0.60		%)
Other expenses	(0.38		%)	(0.37		%)
Change in fair value of derivatives related to fixed-indexed annuities	(0.89		%)	(0.27		%)
Unlocking	(0.04		%)	(0.06		%)
Net spread earned on fixed annuities	0.25		%	1.21		%

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The table below illustrates the impact of fair value accounting for derivatives related to fixed-indexed annuities on the annuity segment’s net spread earned on fixed annuities:

	Three months ended December 31,
	2018		2017
Net spread earned on fixed annuities — before impact of unlocking and derivatives related to FIAs	0.81	%	1.40	%
Unlocking	(0.04	%)	(0.06	%)
Impact of derivatives related to fixed-indexed annuities:
Change in fair value of derivatives	(0.89	%)	(0.27	%)
Related impact on amortization of DPAC (*)	0.36	%	0.14	%
Related impact on amortization of deferred sales inducements (*)	0.01	%	—	%
Net spread earned on fixed annuities	0.25	%	1.21	%

(*) An estimate of the related acceleration/deceleration of the amortization of deferred policy acquisition costs and deferred sales inducements.

The net spread on fixed annuities before the impact of unlocking and derivatives related to FIAs decreased 0.59 percentage points to 0.81% for the fourth quarter of 2018 from 1.40% for the fourth quarter of 2017 due primarily to the impact of poor stock market performance on annuities with guaranteed withdrawal benefits. As previously noted, if the stock market performance reverts back to AFG’s long-term expectation over the life of these policies, a substantial portion of this unfavorable impact would be expected to reverse.

Annuity Net Investment Income

Net investment income for the fourth quarter of 2018 was $419 million compared to $376 million for the fourth quarter of 2017, an increase of $43 million (11%). This increase reflects the growth in AFG’s annuity business and higher earnings from limited partnerships and similar investments, partially offset by the impact of lower fixed maturity investment yields. The overall yield earned on investments in AFG’s fixed annuity operations, calculated as net investment income divided by average investment balances (at amortized cost), increased by 0.02 percentage points to 4.64% from 4.62% in the fourth quarter of 2018 compared to the fourth quarter of 2017. The net investment yield between periods reflects higher earnings from limited partnerships and similar investments, offset by the impact of the reinvestment of proceeds from maturity and redemption of higher yielding investments at the lower yields available in the financial markets. For the period from October 1, 2017 through December 31, 2018, $5.8 billion in annuity segment investments with an average yield of approximately 4.9% were redeemed or sold with the proceeds reinvested at an approximately 0.5% lower yield.

Annuity Interest Credited — Fixed

Interest credited — fixed for the fourth quarter of 2018 was $186 million compared to $164 million for the fourth quarter of 2017, an increase of $22 million (13%). This increase reflects the impact of growth in the annuity business. The average interest rate credited to policyholders, calculated as interest credited divided by average fixed annuity benefits accumulated, increased0.06 percentage points to 2.06% in the fourth quarter of 2018 from 2.00% in the fourth quarter of 2017 due to higher crediting rates on new business.

Annuity Net Interest Spread

AFG’s net interest spread decreased0.04 percentage points to 2.58% from 2.62% in the fourth quarter of 2018 compared to the same period in 2017 due primarily to higher crediting rates on new business and lower fixed maturity investment yields, partially offset by higher earnings from limited partnerships and similar investments. Features included in current annuity product offerings allow AFG to achieve its desired profitability at a lower net interest spread than historical product offerings. As a result, AFG expects its net interest spread to narrow in the future.

Annuity Policy Charges and Other Miscellaneous Income

Annuity policy charges and other miscellaneous income, which consist primarily of surrender charges, amortization of deferred upfront policy charges (unearned revenue) and income from sales of real estate were $10 million in the fourth quarter of 2018 and $7 million the fourth quarter of 2017, an increase of $3 million (43%). Excluding the impact of unlocking charges of $3 million in the fourth quarter of 2017 related to unearned revenue, annuity policy charges and other miscellaneous income were $10 million in both the fourth quarter of 2018 and 2017. Excluding the impact of unlocking charges related to unearned revenue, annuity policy charges and other miscellaneous income as a percentage of average fixed annuity benefits accumulated decreased0.02 percentage points to 0.08% in the fourth quarter of 2018 from 0.10% in the fourth quarter of 2017.

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See “Annuity Unlocking” below for a discussion of the impact that the periodic review of actuarial assumptions had on annuity policy charges and other miscellaneous income.

Other Annuity Benefits, Net of Guaranteed Withdrawal Benefit Fees

Other annuity benefits, net of guaranteed withdrawal benefit fees (excluding the impact of unlocking) for the fourth quarter of 2018 were $45 million compared to $18 million for the fourth quarter of 2017, an increase of $27 million (150%). As a percentage of average fixed annuity benefits accumulated, these net expenses increased0.30 percentage points to 0.51% from 0.21% in the fourth quarter of 2018 compared to the fourth quarter of 2017. In addition to interest credited to policyholders’ accounts and the change in fair value of derivatives related to fixed-indexed annuities, annuity benefits expense also includes the following expenses (in millions, net of guaranteed withdrawal benefit fees):

	Three months ended December 31,
	2018			2017
Change in expected death and annuitization reserve	$	4		$	5
Amortization of sales inducements	4			5
Change in guaranteed withdrawal benefit reserve:
Impact of change in the stock market	22			(5		)
Accretion of benefits and other	24			21
Change in other benefit reserves	8			9
Other annuity benefits	62			35
Offset guaranteed withdrawal benefit fees	(17		)	(17		)
Other annuity benefits, net	$	45		$	18

As discussed under “Annuity Benefits Accumulated” in Note A — “Accounting Policies” to the financial statements, guaranteed withdrawal benefit reserves are accrued for and modified using assumptions similar to those used in establishing and amortizing deferred policy acquisition costs. The guaranteed withdrawal benefit reserve related to FIAs can be inversely impacted by the calculated FIA embedded derivative reserve as the value to policyholders of the guaranteed withdrawal benefits increases when the benefit of stock market participation decreases. As shown in the table above, the change in the stock market increased AFG’s guaranteed withdrawal benefit reserve by $22 million in the fourth quarter of 2018 compared to a favorable impact of $5 million in the fourth quarter of 2017. This $27 million increase (540%) was the primary cause of the $27 million overall increase in other annuity benefits, net of guaranteed withdrawal fees in the fourth quarter of 2018 compared to the fourth quarter of 2017.

See “Annuity Unlocking” below for a discussion of the impact that the periodic review of actuarial assumptions had on annuity benefits expense.

Annuity Acquisition Expenses

Annuity acquisition expenses for the fourth quarter of 2018 were $56 million compared to $15 million for the fourth quarter of 2017, an increase of $41 million (273%). Excluding the $1 million and $35 million favorable impact on amortization of DPAC from the unlocking recorded in the fourth quarter of 2018 and 2017, respectively, annuity acquisition expenses were $57 million for the fourth quarter of 2018 compared to $50 million for the fourth quarter of 2017, an increase of $7 million (14%), reflecting growth in the business. Excluding the impact of unlocking charges discussed under “Annuity Unlocking”below, AFG’s amortization of DPAC and commission expenses as a percentage of average fixed annuity benefits accumulated was 0.59% for the fourth quarter of 2018 compared to 0.60% for the fourth quarter of 2017 and has generally ranged between 0.75% and 0.85%. Variances from the general range relate primarily to the impact of (i) material changes in interest rates or the stock market on AFG’s FIA business, and (ii) differences in actual experience from actuarially projected estimates and assumptions. For example, the unfavorable impact of the significant decline in stock market performance during the fourth quarter of 2018 and the unfavorable impact of lower than anticipated interest rates in the fourth quarter of 2017 on the fair value of derivatives related to FIAs both resulted in a partially offsetting deceleration in the amortization of DPAC.

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The table below illustrates the estimated impact of fair value accounting for derivatives related to fixed-indexed annuities on annuity acquisition expenses as a percentage of average fixed annuity benefits accumulated (excluding the impact of unlocking):

	Three months ended December 31,
	2018		2017
Before the impact of changes in the fair value of derivatives related to FIAs on the amortization of DPAC	0.95	%	0.74	%
Impact of changes in fair value of derivatives related to FIAs on the amortization of DPAC (*)	(0.36	%)	(0.14	%)
Annuity acquisition expenses as a % of fixed annuity benefits accumulated	0.59	%	0.60	%

(*) An estimate of the acceleration/deceleration in the amortization of deferred policy acquisition costs resulting from fair value accounting for derivatives related to fixed-indexed annuities.

As illustrated in the table above, changes in the fair value of derivatives related to FIAs decreased annuity acquisition expenses as a percentage of average fixed annuity benefits accumulated by 0.36% in the fourth quarter of 2018 compared to 0.14% in the fourth quarter of 2017. In the fourth quarter of 2018, the favorable impact of the deceleration in the amortization of DPAC related to changes in the fair value of derivatives related to FIAs on annuity acquisition expenses as a percentage of average fixed annuity benefits accumulated was substantially offset by the unfavorable impact of poor stock market performance on projected future investment income generated by the investment of the projected net proceeds from the call and put options used in the FIA business. Depending on the timing and extent of a recovery in the stock market, a portion of this unfavorable impact would be expected to reverse.

See “Annuity Unlocking” below for a discussion of the impact that the periodic review of actuarial assumptions had on annuity and supplemental insurance acquisition expenses. Unanticipated spread compression, decreases in the stock market, adverse mortality experience, and higher than expected lapse rates could lead to future write-offs of DPAC or the present value of future profits on business in force of companies acquired (“PVFP”).

Annuity Other Expenses

Annuity other expenses were $36 million for the fourth quarter of 2018 compared to $31 million for the fourth quarter of 2017, an increase of $5 million (16%). Annuity other expenses represent primarily general and administrative expenses, as well as selling and issuance expenses that are not deferred. The increase in annuity other expenses reflects primarily growth in the business and an increase in the number of sales personnel focused on new initiatives and increased market share within existing financial institutions and retail marketing organizations in the fourth quarter of 2018 compared to the fourth quarter of 2017. As a percentage of average fixed annuity benefits accumulated, these expenses increased0.01 percentage points to 0.38% from 0.37% for the fourth quarter of 2018 as compared to the fourth quarter of 2017 due primarily to growth in the business.

Change in Fair Value of Derivatives Related to Fixed-Indexed (Including Variable-Indexed) Annuities

AFG’s fixed-indexed (including variable-indexed) annuities provide policyholders with a crediting rate tied, in part, to the performance of an existing stock market or other financial index. AFG attempts to mitigate the risk in the index-based component of these products through the purchase and sale of call and put options on the appropriate index. AFG’s strategy is designed so that the change in the fair value of the call option assets and put option liabilities will generally offset the economic change in the net liability from the index participation. Both the index-based component of the annuities (an embedded derivative) and the related call and put options are considered derivatives that must be adjusted for changes in fair value through earnings each period. The fair values of these derivatives are impacted by actual and expected stock market performance and interest rates as well as other factors. For a list of other factors impacting the fair value of the embedded derivative component of AFG’s annuity benefits accumulated, see Note D — “Fair Value Measurements” to the financial statements. Fluctuations in certain of these factors, such as changes in interest rates and the performance of the stock market, are not economic in nature for the current reporting period, but rather impact the timing of reported results.

Excluding the impact of unlocking charges, the net change in fair value of derivatives related to fixed-indexed annuities increased annuity benefits by $80 million in the fourth quarter of 2018 and $22 million in the fourth quarter of 2017. The change in the fair value of these derivatives includes $11 million in the fourth quarter of 2018 and $5 million in the fourth quarter of 2017 in interest accreted on the embedded derivative (before DPAC amortization), an increase of $6 million (120%). AFG expects both the size of the embedded derivative and interest rates to rise, resulting in continued increases in interest on the embedded derivative. The $80 million increase in annuity benefits in the fourth quarter of 2018 reflects the negative impact of the significant decline in the stock market on the fair value of these derivatives. The $22 million increase in annuity benefits in the fourth quarter of 2017 reflects the negative impact of lower than anticipated interest rates on the fair value of these derivatives, partially offset by the positive impact of strong stock market performance. As a percentage of average fixed annuity benefits accumulated, this net expense increased 0.62 percentage points to 0.89% in the fourth quarter of 2018 from 0.27% in

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the fourth quarter of 2017.

Fluctuations in interest rates and the stock market, among other factors, can cause volatility in the periodic measurement of fair value of the embedded derivative that management believes can be inconsistent with the long-term economics of these products. The table below illustrates the impact of fair value accounting for derivatives related to fixed-indexed annuities on the annuity segment’s earnings before income taxes (dollars in millions):

	Three months ended December 31,
	2018			2017			% Change
Earnings before income taxes — before unlocking and change in fair value of derivatives related to FIAs	$	71		$	111		(36	%)
Unlocking	(4		)	(3		)	33	%
Impact of derivatives related to fixed-indexed annuities:
Change in fair value of derivatives related to FIAs	(80		)	(22		)	264	%
Related impact on amortization of DPAC (*)	33			11			200	%
Earnings before income taxes	$	20		$	97		(79	%)

(*) An estimate of the related acceleration/deceleration of amortization of deferred sales inducements and deferred policy acquisition costs.

As illustrated in the table above, the change in fair value of derivatives related to fixed-indexed annuities, including the related impact on amortization of DPAC, decreased the annuity segment’s earnings before income taxes by $47 million in the fourth quarter of 2018 and $11 million in the fourth quarter of 2017.

The following table provides analysis of the primary factors impacting the change in the fair value of derivatives related to FIAs. Each factor is presented net of the estimated related impact on amortization of DPAC (dollars in millions).

	Three months ended December 31,
	2018			2017			% Change
Interest on the embedded derivative liability	$	(11	)	$	(5	)	120	%
Change in the stock market, including volatility	(27		)	9			(400	%)
Changes in interest rates higher (lower) than expected	(4		)	(12		)	(67	%)
Renewal option costs lower (higher) than expected	1			—			—	%
Other, including the impact of actual versus expected lapses	(6		)	(3		)	100	%
Impact of derivatives related to FIAs	$	(47	)	$	(11	)	327	%

The change in the fair value of derivatives related to FIAs includes an ongoing expense for annuity interest accreted on the embedded derivative reserve. The amount of interest accreted in any period is generally based on the size of the embedded derivative and current interest rates. AFG expects both the size of the embedded derivative and interest rates to rise, resulting in continued increases in interest on the embedded derivative liability.

In the fourth quarter of 2018, the 14% decline in the S&P 500 Index had a $27 million unfavorable impact on the derivatives related to FIAs compared to a $9 million favorable impact of strong stock market performance on these derivatives in the fourth quarter of 2017. The derivatives related to FIAs were unfavorably impacted by lower than expected interest rates in the fourth quarter of both 2018 and 2017. Management believes that the majority of this impact is non-economic and is expected to reverse over time, even in the absence of a stock market recovery.

See “Annuity Unlocking” below for a discussion of the impact that the periodic review of actuarial assumptions had on the change in the fair value of the embedded derivative liability.

Annuity Net Spread Earned on Fixed Annuities

AFG’s net spread earned on fixed annuities decreased0.96 percentage points to 0.25% from 1.21% in the fourth quarter of 2018 compared to the same period in 2017 due primarily to the net impact of poor stock market performance on annuities with guaranteed withdrawal benefits, changes in the fair value of derivatives and related DPAC amortization offset discussed above and the 0.04 percentage points decrease in AFG’s net interest spread.

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Annuity Benefits Accumulated

Annuity premiums received and benefit payments are recorded as increases or decreases in annuity benefits accumulated rather than as revenue and expense. Increases in this liability for interest credited and other benefits are charged to expense and decreases for surrender and other policy charges are credited to other income.

For certain products, annuity benefits accumulated also includes reserves for accrued persistency and premium bonuses, excess benefits expected to be paid on future deaths and annuitizations (“EDAR”) and guaranteed withdrawal benefits. Annuity benefits accumulated also includes amounts advanced from the Federal Home Loan Bank of Cincinnati. The following table is a progression of AFG’s annuity benefits accumulated liability for the three months ended December 31, 2018 and 2017 (in millions):

	Three months ended December 31,
	2018			2017
Beginning fixed annuity reserves	$	35,774		$	32,354
Fixed annuity premiums (receipts)	1,476			903
Federal Home Loan Bank advances and repayments	225			(64		)
Surrenders, benefits and other withdrawals	(796		)	(596		)
Interest and other annuity benefit expenses:
Interest credited	186			164
Embedded derivative mark-to-market	(490		)	178
Change in other benefit reserves	52			25
Unlocking	4			41
Ending fixed annuity reserves	$	36,431		$	33,005
Reconciliation to annuity benefits accumulated per balance sheet:
Ending fixed annuity reserves (from above)	$	36,431		$	33,005
Impact of unrealized investment gains	10			133
Fixed component of variable annuities	175			178
Annuity benefits accumulated per balance sheet	$	36,616		$	33,316

Statutory Annuity Premiums

AFG’s annuity operations generated statutory premiums of $1.48 billion in the fourth quarter of 2018 compared to $909 million in the fourth quarter of 2017, an increase of $573 million (63%). The following table summarizes AFG’s annuity sales (dollars in millions):

	Three months ended December 31,
	2018		2017		% Change
Financial institutions single premium annuities — indexed	$	455	$	364	25	%
Financial institutions single premium annuities — fixed	142		63		125	%
Retail single premium annuities — indexed	392		239		64	%
Retail single premium annuities — fixed	27		15		80	%
Broker dealer single premium annuities — indexed	335		174		93	%
Broker dealer single premium annuities — fixed	4		1		300	%
Pension risk transfer	75		6		1,150	%
Education market — fixed and indexed annuities	46		41		12	%
Total fixed annuity premiums	1,476		903		63	%
Variable annuities	6		6		—	%
Total annuity premiums	$	1,482	$	909	63	%

Management attributes the 63%increase in annuity premiums in the fourth quarter of 2018 compared to the fourth quarter of 2017 to the introduction of new products, efforts to expand in the retail and broker dealer markets and an overall improving interest rate environment during 2018.

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Annuity Unlocking

In the fourth quarters of 2018 and 2017, AFG conducted a detailed review (“unlocking”) of the major actuarial assumptions underlying its annuity operations. As a result of these reviews, AFG recorded a net charge related to its annuity business of $4 million in 2018 and $3 million in 2017, which impacted AFG’s financial statements as follows (in millions):

	Three months ended December 31,
	2018			2017
Policy charges and other miscellaneous income:
Unearned revenue	$	—		$	(3	)
Total revenues	—			(3		)
Annuity benefits:
Fixed-indexed annuity embedded derivative	—			25
Sales inducements	1			(6		)
Other reserves	4			16
Total annuity benefits	5			35
Annuity and supplemental insurance acquisition expenses:
Deferred policy acquisition costs	(1		)	(35		)
Total costs and expenses	4			—
Net charge	$	(4	)	$	(3	)

The net charge from unlocking annuity assumptions in the fourth quarter of 2018 reflects the favorable impact of an increase in projected net interest spreads on in-force business (due primarily to higher actual yields than previously anticipated), more than offset by a slight increase in projected expenses and the unfavorable impact of changes in projected policyholder annuitization and lapse behavior. Reinvestment rate assumptions are based primarily on 7-year and 10-year corporate bond yields. For the fourth quarter 2018 unlocking, AFG assumed a net reinvestment rate (net of default and expense assumptions) of 4.68% in 2019, grading up ratably to an ultimate net reinvestment rate of 5.54% in 2025 and beyond.

The table below compares the reinvestment rate assumed on assets purchased to directly support “fixed annuity benefits accumulated” in AFG’s fourth quarter unlockings for the next calendar year to the actual reinvestment rate achieved in that period (both net of investment expenses):

	First
Unlocking	Investment	Reinvestment Rate
Year	Period	Assumed (*)		Achieved
2015	2016	4.05	%	4.27	%
2016	2017	4.42	%	3.95	%
2017	2018	4.17	%	4.57	%
2018	2019	4.86	%	n/a

(*) Assumed reinvestment rates exclude default rates of 0.18% in each period.

Management believes that these results over the last several years demonstrate that AFG’s investment rate assumptions are reasonable and prudent. During 2018, credit spreads widened resulting in a higher achieved reinvestment rate than assumed in the 2017 unlocking. During 2017, long-term interest rates were lower than anticipated and credit spreads narrowed, resulting in a lower achieved reinvestment rate than assumed in the 2016 unlocking. In addition to the reinvestment rates above, actual default rates in 2018, 2017 and 2016 were lower than the long-term default rates of 0.18% assumed in the unlocking in each of the periods above.

The 2017 net charge reflects the unfavorable impacts of a decrease in projected net interest spreads on in-force business (due primarily to lower than previously anticipated reinvestment rates), a slight increase in projected expenses (due primarily to an increase in projected trailer commissions) and slightly higher projected option costs in the near term, substantially offset by the favorable impact of changes in projected policyholder annuitization and lapse behavior. For the 2017 unlocking, AFG assumed a net reinvestment rate (net of default and expense assumptions) of 3.99% in 2018, grading up ratably to an ultimate net reinvestment rate of 5.55% in 2023 and beyond.

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Annuity Earnings before Income Taxes Reconciliation

The following table reconciles the net spread earned on AFG’s fixed annuities to overall annuity pretax earnings for the three months ended December 31, 2018 and 2017 (in millions):

	Three months ended December 31,
	2018			2017
Earnings on fixed annuity benefits accumulated	$	22		$	99
Earnings impact of investments in excess of fixed annuity benefits accumulated (*)	(1		)	(5		)
Variable annuity earnings (loss)	(1		)	3
Earnings before income taxes	$	20		$	97

(*) Net investment income (as a % of investments) of 4.64% and 4.62% for the three months ended December 31, 2018 and 2017, respectively, multiplied by the difference between average fixed annuity investments (at amortized cost) and average fixed annuity benefits accumulated in each period.

Holding Company, Other and Unallocated — Results of Operations AFG’s net GAAP pretax loss outside of its property and casualty insurance and annuity operations (excluding realized gains and losses) totaled $29 million for the fourth quarter of 2018 compared to $87 million for the fourth quarter of 2017, a decrease of $58 million (67%). AFG’s net core pretax loss outside of its property and casualty insurance and annuity operations (excluding realized gains and losses) totaled $29 million in the fourth quarter of 2018 compared to $47 million in the fourth quarter of 2017, a decrease of $18 million (38%).

The following table details AFG’s GAAP and core loss before income taxes from operations outside of its property and casualty insurance and annuity operations for the three months ended December 31, 2018 and 2017 (dollars in millions):

	Three months ended December 31,
	2018			2017			% Change
Revenues:
Life, accident and health net earned premiums	$	6		$	5		20	%
Net investment income	4			10			(60	%)
Other income — P&C fees	19			20			(5	%)
Other income	9			5			80	%
Total revenues	38			40			(5	%)
Costs and Expenses:
Property and casualty insurance — commissions and other underwriting expenses	6			9			(33	%)
Life, accident and health benefits	8			5			60	%
Life, accident and health acquisition expenses	2			2			—	%
Other expense — expenses associated with P&C fees	13			11			18	%
Other expenses (*)	22			40			(45	%)
Costs and expenses, excluding interest charges on borrowed money	51			67			(24	%)
Core loss before income taxes, excluding realized gains and losses and interest charges on borrowed money	(13		)	(27		)	(52	%)
Interest charges on borrowed money	16			20			(20	%)
Core loss before income taxes, excluding realized gains and losses	(29		)	(47		)	(38	%)
Pretax non-core loss on retirement of debt	—			(40		)	(100	%)
GAAP loss before income taxes, excluding realized gains and losses	$	(29	)	$	(87	)	(67	%)

(*) Excludes a pretax non-core loss on retirement of debt of $40 million in the fourth quarter of 2017.

Holding Company and Other — Life, Accident and Health Premiums, Benefits and Acquisition Expenses

AFG’s run-off long-term care and life insurance operations recorded net earned premiums of $6 million and related benefits and acquisition expenses of $10 million in the fourth quarter of 2018 compared to net earned premiums of $5 million and related benefits and acquisition expenses of $7 million in the fourth quarter of 2017. The $3 million (60%) increase in life, accident and health benefits reflects higher claims in the run-off long-term care business.

Holding Company and Other — Net Investment Income

AFG recorded net investment income on investments held outside of its property and casualty insurance and annuity operations of $4 million in the fourth quarter of 2018 compared to $10 million in the fourth quarter of 2017, a decrease of $6 million

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(60%). The parent company holds a small portfolio of securities that are carried at fair value through net investment income. These securities decreased in value by $5 million in the fourth quarter of 2018 compared to an increase of $2 million in the fourth quarter of 2017.

Holding Company and Other — P&C Fees and Related Expenses

Summit, a workers’ compensation insurance subsidiary, collects fees from a small group of unaffiliated insurers for providing underwriting, policy administration and claims services. In addition, certain of AFG’s property and casualty insurance businesses collect fees from customers for ancillary services such as workplace safety programs and premium financing. In the fourth quarter of 2018, AFG collected $19 million in fees for these services compared to $20 million in the fourth quarter of 2017. Management views this fee income, net of the $13 million in the fourth quarter of 2018 and $11 million in the fourth quarter of 2017, in expenses incurred to generate such fees, as a reduction in the cost of underwriting its property and casualty insurance policies. Consistent with internal management reporting, these fees and the related expenses are netted and recorded as a reduction of commissions and other underwriting expenses in AFG’s segmented results.

Holding Company and Other — Other Income

Other income in the table above includes $4 million in both the fourth quarter of 2018 and 2017, in management fees paid to AFG by the AFG-managed CLOs (AFG’s consolidated managed investment entities). The management fees are eliminated in consolidation — see the other income line in the Consolidate MIEs column under “Results of Operations — Segmented Statement of Earnings.” Excluding amounts eliminated in consolidation, AFG recorded $5 million in other income outside of its property and casualty insurance and annuity operations in the fourth quarter of 2018 compared to $1 million in the fourth quarter of 2017. The increase in other income is due primarily to the impact of a loss recorded on the disposal of equipment in the fourth quarter of 2017.

Holding Company and Other — Other Expenses

Excluding the non-core loss on retirement of debt discussed below, AFG’s holding companies and other operations outside of its property and casualty insurance and annuity operations recorded other expenses of $22 million in the fourth quarter of 2018 compared to $40 million in the fourth quarter of 2017, a decrease of $18 million (45%). This decrease is due primarily to the impact of lower holding company expenses related to employee benefit plans that are tied to stock market performance in the fourth quarter of 2018 compared to the fourth quarter of 2017.

Holding Company and Other — Interest Charges on Borrowed Money

AFG’s holding companies and other operations outside of its insurance operations recorded interest expense of $16 million in the fourth quarter of 2018 compared to $20 million in the fourth quarter of 2017, a decrease of $4 million (20%). This decrease is due primarily to a lower weighted average interest rate on AFG’s outstanding debt. The following table details the principal amount of AFG’s long-term debt balances as of October 1, 2018 compared to October 1, 2017 (dollars in millions):

	October 1, 2018			October 1, 2017
Direct obligations of AFG:
4.50% Senior Notes due June 2047	$	590		$	350
3.50% Senior Notes due August 2026	425			300
9-7/8% Senior Notes due June 2019	—			350
6-1/4% Subordinated Debentures due September 2054	150			150
6% Subordinated Debentures due November 2055	150			150
Other	3			3
Total principal amount of Holding Company Debt	$	1,318		$	1,303
Weighted Average Interest Rate	4.6		%	6.1		%

The decrease in the weighted average interest rate for the fourth quarter of 2018 as compared to the fourth quarter of 2017 reflects the following financing transactions completed by AFG between October 1, 2017 and December 31, 2017:

• Issued an additional $125 million of 3.50% Senior Notes on November 9, 2017

• Issued an additional $240 million of 4.50% Senior Notes on November 9, 2017

• Redeemed $350 million of 9-7/8% Senior Notes on December 11, 2017

Holding Company and Other — Loss on Retirement of Debt

On December 11, 2017, AFG redeemed its $350 million outstanding principal amount of 9-7/8% Senior Notes due 2019 and recorded a pretax loss on retirement of debt of $40 million, primarily a $38 million make-whole premium.

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Consolidated Realized Gains (Losses) on Securities AFG’s consolidated realized gains (losses) on securities, which are not allocated to segments, were net losses of $238 million in the fourth quarter of 2018 compared to net gains of $6 million in the fourth quarter of 2017, a decrease of $244 million (4,067%). Realized gains (losses) on securities consisted of the following (in millions):

	Three months ended December 31,
	2018			2017
Realized gains (losses) before impairments:
Disposals	$	(2	)	$	26
Change in the fair value of equity securities (*)	(223		)	—
Change in the fair value of derivatives	3			(2		)
Adjustments to annuity deferred policy acquisition costs and related items	—			2
	(222		)	26
Impairment charges:
Securities	(23		)	(23		)
Adjustments to annuity deferred policy acquisition costs and related items	7			3
	(16		)	(20		)
Realized gains (losses) on securities	$	(238	)	$	6

(*) As discussed in Note A — “Accounting Policies — Investments,” beginning in January 2018, all equity securities other than those accounted for under the equity method are carried at fair value through net earnings. This amount includes a $228 million net loss on securities that were still held at December 31, 2018.

The $223 million net realized loss from the change in the fair value of equity securities in the fourth quarter of 2018 includes losses of $65 million on banks and financing companies, $23 million on asset management companies, $22 million on energy exploration and production companies and $21 million on technology companies. AFG’s impairment charges on securities for the fourth quarter of 2018 consist of $23 million on fixed maturities compared to $14 million on equity securities, $5 million on fixed maturities and $4 million on other investments in the fourth quarter of 2017. The 2018 fourth quarter impairment charges consisted of $17 million on corporate bonds and $6 million on residential MBS. Approximately $11 million in impairment charges in the fourth quarter of 2017 related to financial institutions and $4 million related to investments in pharmaceutical companies.

Consolidated Income Taxes   AFG’s consolidated provision (credit) for income taxes was a credit of $4 million for the fourth quarter of 2018 compared to an expense of $101 million in the fourth quarter of 2017. The following is a reconciliation of income taxes at the statutory rate (21% in 2018 and 35% in 2017) to the provision (credit) for income taxes as shown in the segmented statement of earnings (dollars in millions):

	Three months ended December 31,
	2018					2017
	Amount			% of EBT		Amount			% of EBT
Earnings (loss) before income taxes (“EBT”)	$	(39	)			$	267
Income taxes at statutory rate	$	(8	)	21	%	$	93		35	%
Effect of:
Tax exempt interest	(3		)	8	%	(6		)	(2	%)
Adjustment to prior year taxes	1			(3	%)	(2		)	(1	%)
Stock-based compensation	(1		)	3	%	(2		)	(1	%)
Dividend received deduction	(1		)	3	%	(2		)	(1	%)
Employee stock ownership plan dividend paid deduction	(1		)	3	%	(3		)	(1	%)
Foreign operations	(5		)	13	%	14			5	%
Change in valuation allowance (excluding change in tax rate)	8			(21	%)	(23		)	(9	%)
Nondeductible expenses	2			(5	%)	1			—	%
Neon restructuring	—			—	%	(56		)	(21	%)
Change in U.S. corporate tax rate	—			—	%	83			31	%
Other	4			(12	%)	4			3	%
Provision (credit) for income taxes	$	(4	)	10	%	$	101		38	%

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The impact of “foreign operations” for the fourth quarter of 2017 in the table above relates to a reduction in the “foreign underwriting losses” deferred tax asset as a result of the sale of the noncontrolling interest in Neon. Since AFG maintains a full valuation allowance against the deferred tax assets related to Neon, this reduction in deferred tax assets was offset by a corresponding reduction in the valuation allowance and had no overall impact on AFG’s income tax expense or results of operations.

The changes in valuation allowance in the table above are primarily related to the cumulative losses in the Neon Lloyd’s insurance business. Due to the uncertainty concerning the realization of the deferred tax benefits associated with these losses, AFG maintains a full valuation allowance against these deferred tax assets. The $61 million decrease in the valuation allowance in the fourth quarter of 2017 related to the change in the U.S. corporate tax rate is included in “Change in U.S. corporate tax rate” in the table above.

In connection with the reorganization of AFG’s Neon Lloyd’s business, in December 2016, AFG undertook a restructuring that included the liquidation for tax purposes of the foreign subsidiary that is the parent of the Neon Lloyd’s operations, resulting in a taxable loss on the liquidation on which AFG reported a $111 million tax benefit in the fourth quarter of 2016. An additional loss associated with the 2016 restructuring was deferred under U.S. tax laws, resulting in an unrecognized potential tax benefit of $48 million at December 31, 2016. On December 29, 2017, AFG entered into agreements under which certain Neon executives acquired an indirect noncontrolling interest in Neon. The sale of the noncontrolling interest in Neon resulted in the recognition for U.S. tax purposes of the loss deferred from the 2016 restructuring. AFG recorded a tax benefit of $56 million in the fourth quarter of 2017 related to the sale of the noncontrolling interest in Neon and the recognition of the previously deferred loss. See Note L — “Income Taxes” to the financial statements.

The Tax Cuts and Jobs Act of 2017 (“TCJA”), which lowered the U.S. corporate tax rate to 21% and made other widespread changes to the U.S. tax code beginning in 2018, was enacted on December 22, 2017. Because the TCJA was enacted in December 2017, AFG recorded the $83 million decrease in its net deferred tax asset resulting from the changes in the tax code (primarily the lower corporate tax rate applicable to 2018 and future years) in the fourth quarter of 2017. See Note L — “Income Taxes” to the financial statements. Although accounting for the TCJA reduced AFG’s net deferred tax asset, AFG’s effective tax rate and net earnings attributable to shareholders for the full-year 2018 were favorably impacted by the lower corporate income tax rate.

Excluding the tax benefits related to the Neon restructuring and the impact of the change in the U.S. corporate tax rate, AFG’s effective tax rate was 28% for the three months ended December 31, 2017.

Consolidated Noncontrolling Interests   AFG’s consolidated net earnings (losses) attributable to noncontrolling interests was a net loss of $6 million for the fourth quarter of 2018 related to losses at Neon, AFG’s United Kingdom-based Lloyd’s insurer, compared to earnings of less than $1 million for the fourth quarter of 2017.

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RESULTS OF OPERATIONS — YEARS ENDED DECEMBER 31, 2018, 2017 AND 2016

Segmented Statement of Earnings   AFG reports its business as three segments: (i) Property and casualty insurance (“P&C”), (ii) Annuity and (iii) Other, which includes run-off long-term care and life, holding company costs and income and expenses related to the managed investment entities (“MIEs”).

Effective January 1, 2018, the results of AFG’s run-off long-term care and life businesses are included in the “Other” segment instead of as a separate reportable segment based on the immaterial size of the remaining operations. Prior periods amounts were reclassified for consistent presentation.

AFG’s net earnings attributable to shareholders, determined in accordance with GAAP, include certain items that may not be indicative of its ongoing core operations. The following tables for the years ended December 31, 2018, 2017 and 2016 identify such items by segment and reconcile net earnings attributable to shareholders to core net operating earnings, a non-GAAP financial measure that AFG believes is a useful tool for investors and analysts in analyzing ongoing operating trends (in millions):

						Other
	P&C			Annuity		Consol. MIEs			Holding Co., other and unallocated			Total			Non-core reclass			GAAP Total
Year ended December 31, 2018
Revenues:
Property and casualty insurance net earned premiums	$	4,865		$	—	$	—		$	—		$	4,865		$	—		$	4,865
Life, accident and health net earned premiums	—			—		—			24			24			—			24
Net investment income	438			1,638		(7		)	25			2,094			—			2,094
Realized losses on securities	—			—		—			—			—			(266		)	(266		)
Income (loss) of MIEs:
Investment income	—			—		255			—			255			—			255
Gain (loss) on change in fair value of assets/liabilities	—			—		(21		)	—			(21		)	—			(21		)
Other income	10			107		(16		)	98			199			—			199
Total revenues	5,313			1,745		211			147			7,416			(266		)	7,150
Costs and Expenses:
Property and casualty insurance:
Losses and loss adjustment expenses	2,985			—		—			—			2,985			18			3,003
Commissions and other underwriting expenses	1,560			—		—			23			1,583			—			1,583
Annuity benefits	—			998		—			—			998			—			998
Life, accident and health benefits	—			—		—			40			40			—			40
Annuity and supplemental insurance acquisition expenses	—			255		—			6			261			—			261
Interest charges on borrowed money	—			—		—			62			62			—			62
Expenses of MIEs	—			—		211			—			211			—			211
Other expenses	41			131		—			172			344			9			353
Total costs and expenses	4,586			1,384		211			303			6,484			27			6,511
Earnings before income taxes	727			361		—			(156		)	932			(293		)	639
Provision for income taxes	149			70		—			(35		)	184			(62		)	122
Net earnings, including noncontrolling interests	578			291		—			(121		)	748			(231		)	517
Less: Net earnings (losses) attributable to noncontrolling interests	(13		)	—		—			—			(13		)	—			(13		)
Core Net Operating Earnings	591			291		—			(121		)	761
Non-core earnings attributable to shareholders (a):
Realized losses on securities, net of tax	—			—		—			(210		)	(210		)	210			—
Special A&E charges, net of tax	(14		)	—		—			(7		)	(21		)	21			—
Net Earnings Attributable to Shareholders	$	577		$	291	$	—		$	(338	)	$	530		$	—		$	530

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						Other
	P&C			Annuity		Consol. MIEs			Holding Co., other and unallocated			Total			Non-core reclass			GAAP Total
Year ended December 31, 2017
Revenues:
Property and casualty insurance net earned premiums	$	4,579		$	—	$	—		$	—		$	4,579		$	—		$	4,579
Life, accident and health net earned premiums	—			—		—			22			22			—			22
Net investment income	362			1,458		(23		)	34			1,831			—			1,831
Realized gains on securities	—			—		—			—			—			5			5
Income of MIEs:
Investment income	—			—		210			—			210			—			210
Gain on change in fair value of assets/liabilities	—			—		12			—			12			—			12
Other income	28			103		(18		)	93			206			—			206
Total revenues	4,969			1,561		181			149			6,860			5			6,865
Costs and Expenses:
Property and casualty insurance:
Losses and loss adjustment expenses	2,884			—		—			—			2,884			71			2,955
Commissions and other underwriting expenses	1,382			—		—			25			1,407			—			1,407
Annuity benefits	—			892		—			—			892			—			892
Life, accident and health benefits	—			—		—			26			26			—			26
Annuity and supplemental insurance acquisition expenses	—			168		—			5			173			—			173
Interest charges on borrowed money	—			—		—			85			85			—			85
Expenses of MIEs	—			—		181			—			181			—			181
Other expenses	41			121		—			185			347			75			422
Total costs and expenses	4,307			1,181		181			326			5,995			146			6,141
Earnings before income taxes	662			380		—			(177		)	865			(141		)	724
Provision for income taxes	219			128		—			(72		)	275			(28		)	247
Net earnings, including noncontrolling interests	443			252		—			(105		)	590			(113		)	477
Less: Net earnings attributable to noncontrolling interests	2			—		—			—			2			—			2
Core Net Operating Earnings	441			252		—			(105		)	588
Non-core earnings attributable to shareholders (a):
Realized gains on securities, net of tax	—			—		—			3			3			(3		)	—
Special A&E charges, net of tax	(58		)	—		—			(16		)	(74		)	74			—
Neon exited lines charge	18			—		—			—			18			(18		)	—
Loss on retirement of debt, net of tax	—			—		—			(33		)	(33		)	33			—
Tax benefit related to Neon restructuring	56			—		—			—			56			(56		)	—
Tax expense related to change in U.S. corporate tax rate	(88		)	25		—			(20		)	(83		)	83			—
Net Earnings Attributable to Shareholders	$	369		$	277	$	—		$	(171	)	$	475		$	—		$	475

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						Other
	P&C			Annuity		Consol. MIEs			Holding Co., other and unallocated			Total			Non-core reclass			GAAP Total
Year ended December 31, 2016
Revenues:
Property and casualty insurance net earned premiums	$	4,328		$	—	$	—		$	—		$	4,328		$	—		$	4,328
Life, accident and health net earned premiums	—			—		—			24			24			—			24
Net investment income	350			1,356		(37		)	27			1,696			—			1,696
Realized gains on:
Securities	—			—		—			—			—			19			19
Subsidiaries	—			—		—			—			—			2			2
Income of MIEs:
Investment income	—			—		190			—			190			—			190
Gain on change in fair value of assets/liabilities	—			—		15			—			15			—			15
Other income	19			103		(17		)	87			192			32			224
Total revenues	4,697			1,459		151			138			6,445			53			6,498
Costs and Expenses:
Property and casualty insurance:
Losses and loss adjustment expenses	2,669			—		—			—			2,669			93			2,762
Commissions and other underwriting expenses	1,322			—		—			19			1,341			8			1,349
Annuity benefits	—			800		—			—			800			—			800
Life, accident and health benefits	—			—		—			33			33			—			33
Annuity and supplemental insurance acquisition expenses	—			181		—			5			186			—			186
Interest charges on borrowed money	—			—		—			77			77			—			77
Expenses of MIEs	—			—		151			—			151			—			151
Other expenses	60			110		—			178			348			5			353
Total costs and expenses	4,051			1,091		151			312			5,605			106			5,711
Earnings before income taxes	646			368		—			(174		)	840			(53		)	787
Provision for income taxes	229			127		—			(66		)	290			(171		)	119
Net earnings, including noncontrolling interests	417			241		—			(108		)	550			118			668
Less: Net earnings attributable to noncontrolling interests	16			—		—			—			16			3			19
Core Net Operating Earnings	401			241		—			(108		)	534
Non-core earnings attributable to shareholders (a):
Realized gains on securities, net of tax and noncontrolling interests	—			—		—			13			13			(13		)	—
Realized gain on subsidiaries, net of tax	—			—		—			1			1			(1		)	—
Gain on sale of apartment property, net of tax and noncontrolling interests	15			—		—			—			15			(15		)	—
Special A&E charges, net of tax	(23		)	—		—			(3		)	(26		)	26			—
Neon exited lines charge	(65		)	—		—			—			(65		)	65			—
Tax benefit related to Neon restructuring	111			—		—			—			111			(111		)	—
Tax benefit related to National Interstate merger	66			—		—			—			66			(66		)	—
Net Earnings Attributable to Shareholders	$	505		$	241	$	—		$	(97	)	$	649		$	—		$	649

(a) See the reconciliation of core earnings to GAAP net earnings under “Results of Operations — General” for details on the tax and noncontrolling interest impacts of these reconciling items.

Property and Casualty Insurance Segment — Results of Operations  AFG’s property and casualty insurance operations contributed $709 million in GAAP pretax earnings in 2018 compared to $591 million in 2017, an increase of $118 million (20%). Property and casualty core pretax earnings were $727 million in 2018 compared to $662 million in 2017, an increase of $65 million (10%). The increase in GAAP and core pretax earnings reflects higher underwriting profit in 2018 compared to 2017 due primarily to higher favorable prior year reserve development and lower catastrophe losses, higher net investment income, due primarily to higher earnings from limited partnerships and similar investments and growth in the business, partially offset by the impact of income from the sale of real estate in 2017. The high returns on limited partnerships and similar

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investments should not be expected to repeat in future periods. The increase in GAAP pretax earnings also reflects lower special A&E charges in 2018 compared to 2017, partially offset by the impact of favorable reserve development of $18 million in the fourth quarter of 2017 in the Neon exited lines in connection with a reinsurance to close transaction.

AFG’s property and casualty insurance operations contributed $591 million in GAAP pretax earnings in 2017 compared to $577 million in 2016, an increase of $14 million (2%). Property and casualty core pretax earnings were $662 million in 2017 compared to $646 million in 2016, an increase of $16 million (2%). The increase in GAAP and core pretax earnings reflects higher underwriting profit in the Specialty casualty sub-segment, higher net investment income and lower other expenses, partially offset by lower underwriting profits in the Property and transportation and Specialty financial sub-segments. The increase in GAAP pretax earnings also reflects the impact of a pretax non-core charge of $65 million in the second quarter of 2016 related to the exit of certain lines of business within Neon and favorable development of $18 million in the fourth quarter of 2017 in the Neon exited lines in connection with a reinsurance to close transaction, partially offset by the impact of a $32 million pretax non-core gain on the sale of an apartment property in the second quarter of 2016 and special A&E charges of $89 million in 2017 compared to $36 million in 2016.

The following table details AFG’s GAAP and core earnings before income taxes from its property and casualty insurance operations for the years ended December 31, 2018, 2017 and 2016 (dollars in millions):

	Year ended December 31,									% Change
	2018			2017			2016			2018 - 2017		2017 - 2016
Gross written premiums	$	6,840		$	6,502		$	5,981		5	%	9	%
Reinsurance premiums ceded	(1,817		)	(1,751		)	(1,595		)	4	%	10	%
Net written premiums	5,023			4,751			4,386			6	%	8	%
Change in unearned premiums	(158		)	(172		)	(58		)	(8	%)	197	%
Net earned premiums	4,865			4,579			4,328			6	%	6	%
Loss and loss adjustment expenses (a)	2,985			2,884			2,669			4	%	8	%
Commissions and other underwriting expenses (b)	1,560			1,382			1,322			13	%	5	%
Core underwriting gain	320			313			337			2	%	(7	%)
Net investment income	438			362			350			21	%	3	%
Other income and expenses, net (c)	(31		)	(13		)	(41		)	138	%	(68	%)
Core earnings before income taxes	727			662			646			10	%	2	%
Pretax non-core special A&E charges	(18		)	(89		)	(36		)	(80	%)	147	%
Pretax non-core Neon exited lines charge	—			18			(65		)	(100	%)	(128	%)
Pretax non-core gain on sale of an apartment property	—			—			32			—	%	(100	%)
GAAP earnings before income taxes	$	709		$	591		$	577		20	%	2	%
(a) Excludes pretax non-core special A&E charges of $18 million, $89 million and $36 million in 2018, 2017 and 2016, respectively, a non-core charge of $57 million related to the exit of certain lines of business within Neon in 2016 and income of $18 million in 2017 representing favorable development related to the Neon exited lines in connection with a reinsurance to close transaction.
(b) Excludes a non-core charge of $8 million related to the exit of certain lines of business within Neon in 2016.
(c) Excludes a pretax non-core gain of $32 million on the sale of an apartment property in 2016.
										Change
										2018 - 2017		2017 - 2016
Combined Ratios:
Specialty lines
Loss and LAE ratio	61.3		%	62.9		%	61.7		%	(1.6	%)	1.2	%
Underwriting expense ratio	32.1		%	30.2		%	30.6		%	1.9	%	(0.4	%)
Combined ratio	93.4		%	93.1		%	92.3		%	0.3	%	0.8	%
Aggregate — including exited lines
Loss and LAE ratio	61.7		%	64.5		%	63.8		%	(2.8	%)	0.7	%
Underwriting expense ratio	32.1		%	30.2		%	30.7		%	1.9	%	(0.5	%)
Combined ratio	93.8		%	94.7		%	94.5		%	(0.9	%)	0.2	%

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AFG reports the underwriting performance of its Specialty property and casualty insurance business in the following sub-segments: (i) Property and transportation, (ii) Specialty casualty and (iii) Specialty financial.

Gross Written Premiums

Gross written premiums (“GWP”) for AFG’s property and casualty insurance segment were $6.84 billion in 2018 compared to $6.50 billion in 2017, an increase of $338 million (5%). GWP increased$521 million (9%) in 2017 compared to 2016. Detail of AFG’s property and casualty gross written premiums is shown below (dollars in millions):

	Year ended December 31,												% Change
	2018				2017				2016				2018 - 2017		2017 - 2016
	GWP		%		GWP		%		GWP		%
Property and transportation	$	2,645	39	%	$	2,688	41	%	$	2,504	42	%	(2	%)	7	%
Specialty casualty	3,445		50	%	3,087		48	%	2,792		47	%	12	%	11	%
Specialty financial	750		11	%	727		11	%	685		11	%	3	%	6	%
	$	6,840	100	%	$	6,502	100	%	$	5,981	100	%	5	%	9	%

Reinsurance Premiums Ceded

Reinsurance premiums ceded (“Ceded”) for AFG’s property and casualty insurance segment were 27% of gross written premiums for each of the years ended December 31, 2018, 2017 and 2016. Detail of AFG’s property and casualty reinsurance premiums ceded is shown below (dollars in millions):

	Year ended December 31,															Change in % of GWP
	2018					2017					2016					2018 - 2017		2017 - 2016
	Ceded			% of GWP		Ceded			% of GWP		Ceded			% of GWP
Property and transportation	$	(891	)	34	%	$	(923	)	34	%	$	(832	)	33	%	—	%	1	%
Specialty casualty	(936		)	27	%	(807		)	26	%	(756		)	27	%	1	%	(1	%)
Specialty financial	(148		)	20	%	(131		)	18	%	(113		)	16	%	2	%	2	%
Other specialty	158					110					106
	$	(1,817	)	27	%	$	(1,751	)	27	%	$	(1,595	)	27	%	—	%	—	%

Net Written Premiums

Net written premiums (“NWP”) for AFG’s property and casualty insurance segment were $5.02 billion in 2018 compared to $4.75 billion in 2017, an increase of $272 million (6%). NWP increased$365 million (8%) in 2017 compared to 2016. Detail of AFG’s property and casualty net written premiums is shown below (dollars in millions):

	Year ended December 31,												% Change
	2018				2017				2016				2018 - 2017		2017 - 2016
	NWP		%		NWP		%		NWP		%
Property and transportation	$	1,754	35	%	$	1,765	37	%	$	1,672	38	%	(1	%)	6	%
Specialty casualty	2,509		50	%	2,280		48	%	2,036		46	%	10	%	12	%
Specialty financial	602		12	%	596		13	%	572		13	%	1	%	4	%
Other specialty	158		3	%	110		2	%	106		3	%	44	%	4	%
	$	5,023	100	%	$	4,751	100	%	$	4,386	100	%	6	%	8	%

Net Earned Premiums

Net earned premiums (“NEP”) for AFG’s property and casualty insurance segment were $4.87 billion in 2018 compared to $4.58 billion in 2017, an increase of $286 million (6%). NEP increased$251 million (6%) in 2017 compared to 2016. Detail of AFG’s property and casualty net earned premiums is shown below (dollars in millions):

	Year ended December 31,												% Change
	2018				2017				2016				2018 - 2017		2017 - 2016
	NEP		%		NEP		%		NEP		%
Property and transportation	$	1,729	36	%	$	1,711	37	%	$	1,662	38	%	1	%	3	%
Specialty casualty	2,403		49	%	2,186		48	%	2,006		46	%	10	%	9	%
Specialty financial	598		12	%	576		13	%	557		13	%	4	%	3	%
Other specialty	135		3	%	106		2	%	103		3	%	27	%	3	%
	$	4,865	100	%	$	4,579	100	%	$	4,328	100	%	6	%	6	%

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The $338 million (5%) increase in gross written premiums in 2018 compared to 2017 reflects growth in the Specialty casualty and Specialty financial sub-segments. Overall average renewal rates increased approximately 1% in 2018. Excluding the workers’ compensation business, renewal pricing increased approximately 3%.

The $521 million (9%) increase in gross written premiums in 2017 compared to 2016 reflects growth in each of the Specialty property and casualty sub-segments. Overall average renewal rates increased approximately 1% in 2017.

Property and transportation Gross written premiums decreased$43 million (2%) in 2018 compared to 2017. This decrease was largely the result of lower year-over-year premiums in the crop insurance business and underwriting actions on under-performing accounts in the Singapore branch. Average renewal rates increased approximately 3% for this group in 2018. Reinsurance premiums ceded as a percentage of gross written premiums were comparable in 2018 and 2017.

Gross written premiums increased$184 million (7%) in 2017 compared to 2016. This increase was the result of higher gross written premiums in the crop, transportation and property and inland marine businesses, and the Singapore branch. This growth was partially offset by lower premiums resulting from an exit from the customs bond business, which was part of the ocean marine operations. Average renewal rates increased approximately 3% for this group in 2017. Reinsurance premiums ceded as a percentage of gross written premiums increased 1 percentage point in 2017 compared to 2016, reflecting a change in the mix of business and the impact of reinstatement premiums in 2017 resulting from reinsured hurricane losses.

Specialty casualty Gross written premiums increased$358 million (12%) in 2018 compared to 2017 due primarily to growth at Neon. Higher gross written premiums in the excess and surplus, targeted markets and executive liability businesses also contributed to the year-over-year growth. Average renewal rates decreased approximately 1% for this group in 2018. Excluding the workers’ compensation businesses, renewal rates for this group increased approximately 3% in 2018. Reinsurance premiums ceded as a percentage of gross written premiums increased1 percentage point in 2018 compared to 2017, reflecting higher cessions to AFG’s internal reinsurance program, which is included in Other specialty and higher cessions in the workers’ compensation businesses.

Gross written premiums increased$295 million (11%) in 2017 compared to 2016. New accounts written in the targeted markets businesses and higher gross written premiums at Neon, resulting from the growth of its portfolio in targeted classes of business were the primary drivers of the increase. Additionally, higher gross written premiums in the workers’ compensation businesses, primarily the result of rate increases in the state of Florida, coupled with growth in the executive liability and excess and surplus businesses contributed to the growth in gross written premiums in 2017. Average renewal rates were flat for this group in 2017. Reinsurance premiums ceded as a percentage of gross written premiums decreased 1 percentage point in 2017 compared to 2016, reflecting a change in the mix of business.

Specialty financial Gross written premiums increased$23 million (3%) in 2018 compared to 2017 due primarily to higher premiums in the financial institutions business. Average renewal rates for this group increased approximately 5% in 2018. Reinsurance premiums ceded as a percentage of gross written premiums increased2 percentage points in 2018 compared to 2017, reflecting higher cessions in the financial institutions and equipment leasing businesses and the impact of a reinstatement premium in 2018 related to a reinsured loss in the fidelity business.

Gross written premiums increased$42 million (6%) in 2017 compared to 2016 due primarily to higher premiums in the lending and leasing, fidelity and surety businesses. Average renewal rates for this group decreased approximately 2% in 2017. Reinsurance premiums ceded as a percentage of gross written premiums increased 2 percentage points in 2017 compared to 2016, reflecting higher cessions in the lending and leasing businesses.

Other specialty The amounts shown as reinsurance premiums ceded represent business assumed by AFG’s internal reinsurance program from the operations that make up AFG’s other Specialty property and casualty insurance sub-segments. Reinsurance premiums assumed increased$48 million (44%) in 2018 compared to 2017, reflecting an increase in premiums retained, primarily from businesses in the Specialty casualty sub-segment.

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Combined Ratio

The table below (dollars in millions) details the components of the combined ratio for AFG’s property and casualty insurance segment for 2018, 2017 and 2016:

	Year ended December 31,						Change				Year ended December 31,
	2018		2017		2016		2018 - 2017		2017 - 2016		2018		2017		2016
Property and transportation
Loss and LAE ratio	69.0	%	68.5	%	67.0	%	0.5	%	1.5	%
Underwriting expense ratio	24.1	%	22.5	%	23.0	%	1.6	%	(0.5	%)
Combined ratio	93.1	%	91.0	%	90.0	%	2.1	%	1.0	%
Underwriting profit											$	120	$	154	$	166
Specialty casualty
Loss and LAE ratio	61.5	%	64.5	%	65.8	%	(3.0	%)	(1.3	%)
Underwriting expense ratio	32.7	%	30.7	%	30.3	%	2.0	%	0.4	%
Combined ratio	94.2	%	95.2	%	96.1	%	(1.0	%)	(0.9	%)
Underwriting profit											$	141	$	104	$	78
Specialty financial
Loss and LAE ratio	37.6	%	39.4	%	32.0	%	(1.8	%)	7.4	%
Underwriting expense ratio	51.3	%	50.0	%	52.9	%	1.3	%	(2.9	%)
Combined ratio	88.9	%	89.4	%	84.9	%	(0.5	%)	4.5	%
Underwriting profit											$	66	$	61	$	84
Total Specialty
Loss and LAE ratio	61.3	%	62.9	%	61.7	%	(1.6	%)	1.2	%
Underwriting expense ratio	32.1	%	30.2	%	30.6	%	1.9	%	(0.4	%)
Combined ratio	93.4	%	93.1	%	92.3	%	0.3	%	0.8	%
Underwriting profit											$	322	$	317	$	337
Aggregate — including exited lines
Loss and LAE ratio	61.7	%	64.5	%	63.8	%	(2.8	%)	0.7	%
Underwriting expense ratio	32.1	%	30.2	%	30.7	%	1.9	%	(0.5	%)
Combined ratio	93.8	%	94.7	%	94.5	%	(0.9	%)	0.2	%
Underwriting profit											$	302	$	242	$	236

The Specialty property and casualty insurance operations generated an underwriting profit of $322 million in 2018 compared to $317 million in 2017, an increase of $5 million (2%). Higher underwriting profits in the Specialty casualty and Specialty financial sub-segments were partially offset by lower underwriting profit in the Property and transportation sub-segment. Overall catastrophe losses were $103 million (2.1 points on the combined ratio) for 2018 compared to $140 million (3.0 points) for 2017. In connection with catastrophe losses incurred in 2018, AFG paid $2 million in net reinstatement premiums, resulting in a total pretax loss from catastrophes of $105 million. In connection with catastrophe losses incurred in 2017, AFG reduced profit-based commissions payable to agents by $8 million in the Specialty financial sub-segment and paid $10 million in net reinstatement premiums, resulting in a total pretax loss from catastrophes of $142 million in 2017.

The Specialty property and casualty insurance operations generated an underwriting profit of $317 million in 2017 compared to $337 million in 2016, a decrease of $20 million (6%). The lower underwriting profit in 2017 as compared to 2016 reflects lower underwriting profits in the Property and transportation and Specialty financial insurance sub-segments, partially offset by higher underwriting profit in the Specialty casualty insurance sub-segment. Results for each of the Specialty property and casualty insurance sub-segments reflect higher catastrophe losses in 2017 compared to 2016. Overall catastrophe losses were $140 million (3.0 points on the combined ratio) for 2017 compared to $55 million (1.3 points) for 2016. In connection with catastrophe losses incurred in 2017, AFG reduced profit-based commissions payable to agents by $8 million in the Specialty financial sub-segment and paid $10 million in net reinstatement premiums, resulting in a total pretax loss from catastrophes of $142 million in 2017.

Property and transportation Underwriting profit for this group was $120 million in 2018 compared to $154 million in 2017, a decrease of $34 million (22%). Lower underwriting profits in the agricultural, property and inland marine and aviation businesses and the Singapore branch were partially offset by higher underwriting profit at National Interstate and improved

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results in the ocean marine operations. Catastrophe losses were $26 million (1.5 points on the combined ratio) in 2018 compared to catastrophe losses of $36 million (2.1 points) and related reinstatement premiums of $2 million in 2017.

Underwriting profit for this group was $154 million in 2017 compared to $166 million in 2016, a decrease of $12 million (7%). Lower underwriting profits in the crop and ocean marine businesses were the primary drivers of these lower results, partially offset by higher underwriting profit in the transportation businesses. The crop insurance operations reported strong underwriting profitability in 2017, albeit at lower levels than in 2016. Catastrophe losses were $36 million (2.1 points on the combined ratio) and related reinstatement premiums were $2 million in 2017 compared to catastrophe losses of $31 million (1.9 points) in 2016.

Specialty casualty Underwriting profit for this group was $141 million in 2018 compared to $104 million in 2017, an increase of $37 million (36%). These results reflect higher underwriting profits in the executive liability and targeted markets businesses and lower adverse prior year reserve development in run-off businesses. Catastrophe losses were $45 million (1.9 points on the combined ratio) and related net reinstatement premiums were $1 million in 2018 compared to catastrophe losses of $71 million (3.3 points) and related net reinstatement premiums of $6 million in 2017.

Underwriting profit for this group was $104 million in 2017 compared to $78 million in 2016, an increase of $26 million (33%), reflecting favorable reserve development within Neon, including the portion of the 2015 and prior years reinsurance to close transaction attributed to ongoing lines of business, and higher underwriting profits in the excess and surplus lines and workers’ compensation businesses. These improved results were partially offset by lower underwriting profit in the executive liability business, due primarily to lower favorable prior year reserve development, adverse prior year reserve development in the targeted markets operations and higher catastrophe losses. Catastrophe losses were $71 million (3.3 points on the combined ratio) and related net reinstatement premiums were $6 million in 2017 compared to catastrophe losses of $10 million (0.5 points) in 2016.

Specialty financial Underwriting profit for this group was $66 million in 2018 compared to $61 million in 2017, an increase of $5 million (8%) due primarily to favorable prior year reserve development in run-off businesses. Catastrophe losses were $28 million (4.7 points on the combined ratio) in 2018 compared to $30 million (5.2 points) in 2017. In connection with catastrophe losses incurred in 2018, the Specialty financial sub-segment paid $1 million in reinstatement premiums compared to a reduction of profit-based commissions payable to agents of $8 million (1.1 points on the combined ratio) and reinstatement premiums of $2 million in 2017.

Underwriting profit for this group was $61 million in 2017 compared to $84 million in 2016, a decrease of $23 million (27%), reflecting lower underwriting profitability in the financial institutions business due primarily to higher catastrophe losses and adverse prior year reserve development. Catastrophe losses were $30 million (5.2 points on the combined ratio) in 2017 compared to $11 million (2.0 points) in 2016. In connection with catastrophe losses incurred in 2017, the Specialty financial sub-segment reduced profit-based commissions payable to agents by $8 million (1.1 points on the combined ratio) and paid $2 million in reinstatement premiums.

Other specialty This group reported an underwriting loss of $5 million in 2018 compared to $2 million in 2017, an increase of $3 million (150%). The lower results are due primarily to losses in the business assumed by AFG’s internal reinsurance program from the operations that make up AFG’s other Specialty sub-segments in 2018, partially offset by the impact of a $14 million charge recorded in 2017 to adjust the deferred gain on the retroactive reinsurance transaction entered into in connection with the sale of businesses in 1998.

This group reported an underwriting loss of $2 million in 2017 compared to an underwriting profit of $9 million in 2016, a decrease of $11 million (122%). The decrease is due primarily to the $14 million charge to adjust the deferred gain on the retroactive reinsurance transaction entered into in connection with the sale of businesses in 1998.

Aggregate Aggregate underwriting results for AFG’s property and casualty insurance segment include the asbestos and environmental reserve charges and the Neon exited lines charge and favorable development in the Neon exited lines discussed below under “Net prior year reserve development.”

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Losses and Loss Adjustment Expenses

AFG’s overall loss and LAE ratio was 61.7%, 64.5% and 63.8% in 2018, 2017 and 2016, respectively. The components of AFG’s property and casualty losses and LAE amounts and ratio are detailed below (dollars in millions):

	Year ended December 31,
	Amount									Ratio						Change in Ratio
	2018			2017			2016			2018		2017		2016		2018 - 2017		2017 - 2016
Property and transportation
Current year, excluding catastrophe losses	$	1,216		$	1,176		$	1,104		70.3	%	68.7	%	66.3	%	1.6	%	2.4	%
Prior accident years development	(50		)	(40		)	(21		)	(2.8	%)	(2.3	%)	(1.2	%)	(0.5	%)	(1.1	%)
Current year catastrophe losses	26			36			31			1.5	%	2.1	%	1.9	%	(0.6	%)	0.2	%
Property and transportation losses and LAE and ratio	$	1,192		$	1,172		$	1,114		69.0	%	68.5	%	67.0	%	0.5	%	1.5	%
Specialty casualty
Current year, excluding catastrophe losses	$	1,570		$	1,425		$	1,323		65.4	%	65.2	%	66.0	%	0.2	%	(0.8	%)
Prior accident years development	(139		)	(86		)	(13		)	(5.8	%)	(4.0	%)	(0.7	%)	(1.8	%)	(3.3	%)
Current year catastrophe losses	45			71			10			1.9	%	3.3	%	0.5	%	(1.4	%)	2.8	%
Specialty casualty losses and LAE and ratio	$	1,476		$	1,410		$	1,320		61.5	%	64.5	%	65.8	%	(3.0	%)	(1.3	%)
Specialty financial
Current year, excluding catastrophe losses	$	223		$	218		$	190		37.3	%	37.8	%	34.0	%	(0.5	%)	3.8	%
Prior accident years development	(26		)	(21		)	(23		)	(4.4	%)	(3.6	%)	(4.0	%)	(0.8	%)	0.4	%
Current year catastrophe losses	28			30			11			4.7	%	5.2	%	2.0	%	(0.5	%)	3.2	%
Specialty financial losses and LAE and ratio	$	225		$	227		$	178		37.6	%	39.4	%	32.0	%	(1.8	%)	7.4	%
Total Specialty
Current year, excluding catastrophe losses	$	3,092		$	2,879		$	2,675		63.6	%	62.9	%	61.8	%	0.7	%	1.1	%
Prior accident years development	(212		)	(139		)	(61		)	(4.4	%)	(3.0	%)	(1.4	%)	(1.4	%)	(1.6	%)
Current year catastrophe losses	103			140			55			2.1	%	3.0	%	1.3	%	(0.9	%)	1.7	%
Total Specialty losses and LAE and ratio	$	2,983		$	2,880		$	2,669		61.3	%	62.9	%	61.7	%	(1.6	%)	1.2	%
Aggregate — including exited lines
Current year, excluding catastrophe losses	$	3,092		$	2,879		$	2,675		63.6	%	62.9	%	61.8	%	0.7	%	1.1	%
Prior accident years development	(192		)	(64		)	32			(4.0	%)	(1.4	%)	0.7	%	(2.6	%)	(2.1	%)
Current year catastrophe losses	103			140			55			2.1	%	3.0	%	1.3	%	(0.9	%)	1.7	%
Aggregate losses and LAE and ratio	$	3,003		$	2,955		$	2,762		61.7	%	64.5	%	63.8	%	(2.8	%)	0.7	%

Current accident year losses and LAE, excluding catastrophe losses

The current accident year loss and LAE ratio, excluding catastrophe losses for AFG’s Specialty property and casualty insurance operations was 63.6% in 2018, 62.9% in 2017 and 61.8% in 2016.

Property and transportation   The 1.6 percentage points increase in the loss and LAE ratio for the current year, excluding catastrophe losses in 2018 compared to 2017 reflects an increase in the loss and LAE ratio of the aviation business and the Singapore branch.

The 2.4 percentage points increase in the loss and LAE ratio for the current year, excluding catastrophe losses in 2017 compared to 2016 reflects an increase in the loss and LAE ratio of the crop and property and inland marine businesses and the Singapore branch.

Specialty casualty   The loss and LAE ratio for the current year, excluding catastrophe losses is comparable in 2018 and 2017.

The 0.8 percentage points improvement in the loss and LAE ratio for the current year, excluding catastrophe losses in 2017 compared to 2016 reflects a decrease in the loss and LAE ratio at Neon.

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Specialty financial   The loss and LAE ratio for the current year, excluding catastrophe losses is comparable in 2018 and 2017.

The 3.8 percentage points increase in the loss and LAE ratio for the current year, excluding catastrophe losses in 2017 compared to 2016 reflects an increase in the loss and LAE ratio of the financial institutions business.

Net prior year reserve development

AFG’s Specialty property and casualty insurance operations recorded net favorable reserve development related to prior accident years of $212 million in 2018 compared to $139 million in 2017 and $61 million in 2016, an increase of $73 million (53%) and $78 million (128%), respectively.

Property and transportation Net favorable reserve development of $50 million in 2018 reflects lower than expected losses in the crop business and lower than expected claim severity at National Interstate, partially offset by higher than expected claim frequency and severity in the Singapore branch and aviation operations.

Net favorable reserve development of $40 million in 2017 reflects lower than expected losses in the crop and equine businesses and lower than expected claim severity in the property and inland marine and transportation businesses, partially offset by higher than expected claim frequency and severity in the ocean marine business.

Net favorable reserve development of $21 million in 2016 reflects lower than expected losses in the crop operations and lower than expected claim severity in the property and inland marine and trucking businesses, partially offset by reserve strengthening at National Interstate and higher than expected claim frequency in the ocean marine business.

Specialty casualty Net favorable reserve development of $139 million in 2018 reflects lower than anticipated claim severity in the workers’ compensation businesses and lower than expected emergence in assumed 2017 property catastrophe losses at Neon, and to a lesser extent, lower than expected claim severity in the executive liability business.

Net favorable reserve development of $86 million in 2017 includes favorable reserve development on ongoing lines of business within Neon recorded in connection with the reinsurance to close agreement entered into in December 2017 for the 2015 and prior years of account, lower than anticipated claim severity in the workers’ compensation businesses and lower than expected losses in the executive liability business, partially offset by higher than anticipated claim severity in the targeted markets and general liability businesses and higher than anticipated severity in New York contractor claims.

In the fourth quarter of 2017, Neon entered into a reinsurance to close agreement for its 2015 and prior years of account, which transfers the responsibility for all of the liabilities that attach to the transferred year of account as well as any income due to the closing year of account in return for a premium. As a result of the reinsurance to close agreement, Neon recorded favorable development of $42 million, of which $24 million related to its ongoing lines of business (included in Specialty casualty) and $18 million related to the exited lines of business (discussed below and included in Neon exited lines charge).

Net favorable reserve development of $13 million in 2016 reflects lower than anticipated claim frequency and severity in workers’ compensation business, lower than expected claim severity in directors and officers liability insurance and lower than expected claim frequency and severity in excess liability business, partially offset by adverse reserve development at Neon, higher than anticipated severity in New York contractor claims, higher than anticipated claim frequency and severity in general liability insurance and higher than expected claim frequency and severity in the targeted markets business.

Specialty financial Net favorable reserve development of $26 million in 2018 reflects lower than expected claim frequency and severity in the surety business, lower than expected claim severity in the fidelity business and lower than expected claim frequency in run-off businesses.

Net favorable reserve development of $21 million in 2017 reflects lower than anticipated claim severity in the fidelity business and lower than expected claim frequency and severity in the surety business.

Net favorable reserve development of $23 million in 2016 reflects lower than anticipated claim severity in the fidelity business, lower than expected claim frequency and severity in the surety business and lower than anticipated claim frequency in the financial institutions business.

Other specialty In addition to the reserve development discussed above, total Specialty prior year reserve development includes net adverse reserve development of $3 million in 2018, net adverse reserve development of $8 million in 2017 and net

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favorable reserve development of $4 million in 2016. The adverse reserve development in 2018 reflects $10 million of adverse reserve development associated with AFG’s internal reinsurance program, partially offset by amortization of the deferred gains on the retroactive reinsurance transactions entered into in connection with the sale of businesses in 1998 and 2001. The adverse reserve development in 2017 reflects a $14 million charge to adjust the deferred gain on the retroactive reinsurance transaction entered into in connection with the sale of businesses in 1998, partially offset by the amortization of deferred gains on retroactive reinsurance and favorable reserve development associated with AFG’s internal reinsurance program. Favorable reserve development in 2016 reflects amortization of deferred gains on retroactive reinsurance and reserve development associated with AFG’s internal reinsurance program.

Asbestos and environmental reserve charges   As previously discussed under “Uncertainties” — “Asbestos and Environmental-related (“A&E”) Insurance Reserves,” AFG has established property and casualty reserves for claims related to environmental exposures and asbestos claims. Total charges recorded to increase reserves (net of reinsurance recoverable) for A&E exposures of AFG’s property and casualty group (included in loss and loss adjustment expenses) were $18 million in 2018, $89 million in 2017 and $36 million in 2016.

Neon exited lines charge During the second quarter of 2016, AFG’s specialist Lloyd’s market insurer completed a strategic review of its business under a new leadership team and re-launched as Neon Underwriting Ltd. As part of its strategic review, Neon sold and/or exited certain historical lines of business including its UK and international medical malpractice and general liability classes. As a result of Neon’s claims review of its exited lines of business, AFG recorded a charge of approximately $65 million including $57 million to increase loss reserves primarily related to its medical malpractice and general liability lines. Consistent with the treatment of other items that are not indicative of AFG’s ongoing operations (both favorable and unfavorable), the 2016 charge was treated as non-core because it resulted from a special strategic review of lines of business that Neon no longer writes. Similarly, the $18 million in favorable development related to the Neon exited lines recorded in connection with the December 2017 reinsurance to close transaction (discussed above under Specialty casualty) was treated as non-core.

Aggregate Aggregate net prior accident years reserve development for AFG’s property and casualty insurance segment includes the A&E charges, the Neon exited lines charge and the favorable development on the Neon exited lines mentioned above and adverse reserve development of $2 million in 2018 and $4 million in 2017 related to business outside the Specialty group that AFG no longer writes.

Catastrophe losses

AFG generally seeks to reduce its exposure to catastrophes through individual risk selection, including minimizing coastal and known fault-line exposures, and the purchase of reinsurance. AFG recorded net catastrophe losses of $103 million in 2018 primarily from mudslides in California in the first quarter, storms and flooding in several regions of the United States in the second quarter, Hurricane Florence in the third quarter and Hurricane Michael and wildfires in California in the fourth quarter. Catastrophe losses of $140 million in 2017 resulted primarily from storms and tornadoes in several regions of the United States in the first and second quarters, Hurricanes Harvey, Irma and Maria and earthquakes in Mexico in the third quarter and wildfires in California in the fourth quarter. Catastrophe losses of $55 million in 2016 resulted primarily from winter storms in the first quarter, storms in Texas in the second quarter, flooding in Louisiana and multiple storms in the southern United States in the third quarter and Hurricane Matthew in the fourth quarter.

Commissions and Other Underwriting Expenses

AFG’s property and casualty commissions and other underwriting expenses (“U/W Exp”) were $1.56 billion in 2018 compared to $1.38 billion in 2017, an increase of $178 million (13%). AFG’s underwriting expense ratio was 32.1% in 2018 compared to 30.2% in 2017, an increase of 1.9 percentage points.

AFG’s property and casualty U/W Exp were $1.38 billion in 2017 compared to $1.33 billion in 2016, an increase of $52 million (4%). AFG’s underwriting expense ratio was 30.2% in 2017 compared to 30.7% in 2016, a decrease of 0.5 percentage points.

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Detail of AFG’s property and casualty commissions and other underwriting expenses and underwriting expense ratios is shown below (dollars in millions):

	Year ended December 31,												Change in % of NEP
	2018				2017				2016				2018 - 2017		2017 - 2016
	U/W Exp		% of NEP		U/W Exp		% of NEP		U/W Exp		% of NEP
Property and transportation	$	417	24.1	%	$	385	22.5	%	$	382	23.0	%	1.6	%	(0.5	%)
Specialty casualty	786		32.7	%	672		30.7	%	608		30.3	%	2.0	%	0.4	%
Specialty financial	307		51.3	%	288		50.0	%	295		52.9	%	1.3	%	(2.9	%)
Other specialty	50		37.3	%	37		35.8	%	37		36.5	%	1.5	%	(0.7	%)
Total Specialty	1,560		32.1	%	1,382		30.2	%	1,322		30.6	%	1.9	%	(0.4	%)
Neon exited lines charge	—				—				8
Total Aggregate	$	1,560	32.1	%	$	1,382	30.2	%	$	1,330	30.7	%	1.9	%	(0.5	%)

AFG’s overall expense ratio increased 1.9% in 2018 as compared to 2017 and decreased 0.5% in 2017 compared to 2016.

Property and transportation   Commissions and other underwriting expenses as a percentage of net earned premiums increased1.6 percentage points in 2018 compared to 2017 reflecting lower premiums in the crop business, which has a lower expense ratio than AFG’s overall Property and transportation group and an increase in the expense ratio in the transportation businesses.

Commissions and other underwriting expenses as a percentage of net earned premiums decreased0.5 percentage points in 2017 compared to 2016 reflecting the impact of higher crop premiums on the ratio.

Specialty casualty   Commissions and other underwriting expenses as a percentage of net earned premiums increased2.0 percentage points in 2018 compared to 2017 reflecting growth at Neon, which has a higher expense ratio than AFG’s overall Specialty casualty group, higher dividends paid to policyholders in the workers’ compensation businesses and lower underwriting, policy administration and claims services fees collected from unaffiliated insurers in the workers’ compensation businesses.

Commissions and other underwriting expenses as a percentage of net earned premiums increased0.4 percentage points in 2017 compared to 2016 reflecting the impact of reinstatement premiums on the ratio.

Specialty financial   Commissions and other underwriting expenses as a percentage of net earned premiums increased1.3 percentage points in 2018 compared to 2017 reflecting higher profitability-based commissions paid to agents in the financial institutions business compared to 2017, which included an $8 million commission expense reduction due to hurricane losses in the 2017 period, partially offset by the impact of higher premiums on the ratio in the international operations.

Commissions and other underwriting expenses as a percentage of net earned premiums decreased2.9 percentage points in 2017 compared to 2016 reflecting lower profitability-based commissions paid to agents in the financial institutions business, including an $8 million commission expense reduction due to hurricane losses.

AggregateAggregate commissions and other underwriting expenses for AFG’s property and casualty insurance segment includes $8 million of restructuring charges recorded as part of the $65 million non-core charge related to the exit of certain lines of business within Neon, AFG’s Lloyd’s insurer, recorded in the second quarter of 2016. See “Net prior year reserve development” under “Results of Operations — Property and Casualty Insurance Segment” for the years ended December 31, 2018, 2017 and 2016.

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Property and Casualty Net Investment Income

Net investment income in AFG’s property and casualty insurance operations was $438 million in 2018 compared to $362 million in 2017, an increase of $76 million (21%). Net investment income in AFG’s property and casualty operations was $362 million in 2017 compared to $350 million in 2016, an increase of $12 million (3%). In recent years, yields available in the financial markets on fixed maturity securities have generally been lower than yields on maturing investments, placing downward pressure on AFG’s investment portfolio yield. The average invested assets and overall yield earned on investments held by AFG’s property and casualty insurance operations are provided below (dollars in millions):

	Year ended December 31,									2018 - 2017					2017 - 2016
	2018			2017			2016			Change			% Change		Change			% Change
Net investment income	$	438		$	362		$	350		$	76		21	%	$	12		3	%
Average invested assets (at amortized cost)	$	10,497		$	9,948		$	9,550		$	549		6	%	$	398		4	%
Yield (net investment income as a % of average invested assets)	4.17		%	3.64		%	3.66		%	0.53		%			(0.02		%)
Tax equivalent yield (*)	4.35		%	4.10		%	4.16		%	0.25		%			(0.06		%)

(*) Adjusts the yield on equity securities and tax-exempt bonds to the fully taxable equivalent yield.

The increase in average invested assets and net investment income in the property and casualty insurance segment in 2018 compared to 2017 reflects growth in the property and casualty insurance segment and very strong earnings from limited partnerships and similar investments. The property and casualty insurance segment’s overall yield on investments (net investment income as a percentage of average invested assets) was 4.17% in 2018 compared to 3.64% in 2017, an increase of 0.53 percentage points due primarily to the higher earnings from limited partnerships and similar investments. AFG’s property and casualty insurance operations recorded $80 million in earnings from partnerships and similar investments and AFG-managed CLOs in 2018 compared to $34 million in 2017, an increase of $46 million (135%). The yield earned on these investments was 13.9% in 2018 compared to 7.9% in 2017. The high returns from limited partnerships and similar investments should not be expected to repeat in future periods.

The increase in average invested assets and net investment income in the property and casualty insurance segment in 2017 as compared to 2016 is due primarily to growth in the property and casualty insurance segment. The property and casualty segment’s overall yield on investments was 3.64% in 2017 compared to 3.66% in 2016, a decrease of 0.02 percentage points reflecting the impact of lower yields available in the financial markets and lower income from certain investments that are required to be carried at fair value through earnings, partially offset by higher earnings from limited partnerships and similar investments.

Property and Casualty Other Income and Expenses, Net

GAAP other income and expenses, net for AFG’s property and casualty insurance operations was a net expense of $31 million in 2018, $13 million in 2017, and $9 million in 2016. Core other income and expenses, net for AFG’s property and casualty insurance operations was a net expense of $31 million, $13 million and $41 million in 2018, 2017 and 2016, respectively. The table below details the items included in GAAP and core other income and expenses, net for AFG’s property and casualty insurance operations (in millions):

	Year ended December 31,
	2018			2017			2016
Other income
Income from the sale of real estate (*)	$	—		$	16		$	1
Other	10			12			18
Total other income	10			28			19
Other expenses
Amortization of intangibles	9			8			8
NATL merger/tender offer expenses	—			—			10
Other	32			33			42
Total other expense	41			41			60
Core other income and expenses, net	(31		)	(13		)	(41		)
Pretax non-core gain on sale of an apartment property	—			—			32
GAAP other income and expenses, net	$	(31	)	$	(13	)	$	(9	)

(*) Excludes a pretax non-core gain of $32 million on the sale of an apartment property in 2016.

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Other income for AFG’s property and casualty insurance operations includes $3 million in 2017 and $4 million in 2016 in death benefits from life insurance policies.

AFG and its consolidated subsidiaries incurred $10 million in transaction expenses in 2016 related to GAI’s acquisition of all of the NATL common stock that it did not already own. These expenses consisted primarily of financial advisory and legal services. See Note B — “Acquisitions and Sale of Businesses” to the financial statements.

Annuity Segment — Results of Operations

AFG’s annuity operations contributed $361 million in pretax earnings in 2018 compared to $380 million in 2017, a decrease of $19 million (5%). AFG’s annuity segment results in 2018 compared to 2017 reflect a 10% increase in average annuity investments (at amortized cost) and higher earnings from limited partnerships and similar investments, more than offset by higher unlocking charges, the impact of lower investment yields due to the run-off of higher yielding investments and the impact from changes in stock market performance and interest rates discussed below. The high returns on limited partnerships and similar investments should not be expected to repeat in future periods.

The fair value of derivatives related to FIAs was favorably impacted by higher than anticipated interest rates in 2018 compared to the negative impact of lower than anticipated interest rates in 2017. The favorable impact of interest rates between periods was offset by the negative impact of higher interest on the embedded derivative (from growth in the FIA business and higher interest rates), higher than expected option costs in 2018 and the impact of lower stock market performance in the 2018 period. AFG monitors the major actuarial assumptions underlying its annuity operations throughout the year and conducts detailed reviews (“unlocking”) of its assumptions in the fourth quarter of each year. If changes in the economic environment of actual experience would cause material revisions to future estimates, these assumptions are updated (unlocked) in an interim quarter. In addition to the fourth quarter detailed review, AFG unlocked its assumptions for option costs and interest rates in the second quarter of 2018 due to the continued higher FIA option costs (resulting primarily from higher than expected risk-free rates). AFG’s unlocking of the actuarial assumptions underlying its annuity operations resulted in a net charge of $31 million in 2018 compared to $3 million in 2017.

AFG’s annuity operations contributed $380 million in pretax earnings in 2017 compared to $368 million in 2016, an increase of $12 million (3%). The increase in AFG’s annuity segment results in 2017 compared to 2016 reflect an 11% increase in average annuity investments (at amortized cost), partially offset by lower investment yields due to the run-off of higher yielding investments and higher general and administrative expenses. The change in fair value of derivatives related to FIAs had a negative impact of $33 million in 2017 compared to $27 million in 2016. Both periods reflect the negative impact of lower than anticipated interest rates, partially offset by the positive impact of a higher stock market on the fair value accounting for FIAs. Operating earnings also included a net unlocking annuity charge of $3 million in 2017 compared to a net annuity expense reduction of $1 million in 2016.

The following table details AFG’s earnings before income taxes from its annuity operations for 2018, 2017 and 2016 (dollars in millions):

	Year ended December 31,						% Change
	2018		2017		2016		2018 - 2017		2017 - 2016
Revenues:
Net investment income	$	1,638	$	1,458	$	1,356	12	%	8	%
Other income:
Guaranteed withdrawal benefit fees	65		60		53		8	%	13	%
Policy charges and other miscellaneous income	42		43		50		(2	%)	(14	%)
Total revenues	1,745		1,561		1,459		12	%	7	%
Costs and Expenses:
Annuity benefits (*)	998		892		800		12	%	12	%
Acquisition expenses	255		168		181		52	%	(7	%)
Other expenses	131		121		110		8	%	10	%
Total costs and expenses	1,384		1,181		1,091		17	%	8	%
Earnings before income taxes	$	361	$	380	$	368	(5	%)	3	%

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Detail of annuity earnings before income taxes (dollars in millions):

	Year ended December 31,									% Change
	2018			2017			2016			2018 - 2017		2017 - 2016
Earnings before income taxes — before the impact of unlocking and derivatives related to FIAs	$	425		$	416		$	394		2	%	6	%
Unlocking	(31		)	(3		)	1			933	%	(400	%)
Impact of derivatives related to FIAs	(33		)	(33		)	(27		)	—	%	22	%
Earnings before income taxes	$	361		$	380		$	368		(5	%)	3	%

(*) Annuity benefits consisted of the following (dollars in millions):

	Year ended December 31,									% Change
	2018			2017			2016			2018 - 2017		2017 - 2016
Interest credited — fixed	$	704		$	633		$	574		11	%	10	%
Interest credited — fixed component of variable annuities	5			5			5			—	%	—	%
Other annuity benefits:
Change in expected death and annuitization reserve	17			18			18			(6	%)	—	%
Amortization of sales inducements	19			19			24			—	%	(21	%)
Change in guaranteed withdrawal benefit reserve:
Impact of change in the stock market	14			(14		)	(6		)	(200	%)	133	%
Accretion of benefits and other	92			81			75			14	%	8	%
Change in other benefit reserves	37			45			34			(18	%)	32	%
Total other annuity benefits	179			149			145			20	%	3	%
Total before impact of unlocking and derivatives related to FIAs	888			787			724			13	%	9	%
Unlocking	59			35			23			69	%	52	%
Derivatives related to fixed-indexed annuities:
Embedded derivative mark-to-market	(248		)	564			194			(144	%)	191	%
Equity option mark-to-market	299			(494		)	(141		)	(161	%)	250	%
Impact of derivatives related to FIAs	51			70			53			(27	%)	32	%
Total annuity benefits	$	998		$	892		$	800		12	%	12	%

See “Annuity Unlocking” below for a discussion of the impact that the unlocking of actuarial assumptions had on annuity benefit expense.

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Net Spread on Fixed Annuities (excludes variable annuity earnings)

The table below (dollars in millions) details the components of the spreads for AFG’s fixed annuity operations (including fixed-indexed and variable-indexed annuities):

	Year ended December 31,									% Change
	2018			2017			2016			2018 - 2017		2017 - 2016
Average fixed annuity investments (at amortized cost)	$	34,471		$	31,250		$	28,223		10	%	11	%
Average fixed annuity benefits accumulated	34,706			31,526			28,146			10	%	12	%
As % of fixed annuity benefits accumulated (except as noted):
Net investment income (as % of fixed annuity investments)	4.73		%	4.63		%	4.77		%
Interest credited — fixed	(2.03		%)	(2.01		%)	(2.04		%)
Net interest spread	2.70		%	2.62		%	2.73		%
Policy charges and other miscellaneous income	0.10		%	0.11		%	0.15		%
Other annuity benefit expenses, net of guaranteed withdrawal benefit fees	(0.33		%)	(0.28		%)	(0.33		%)
Acquisition expenses	(0.79		%)	(0.62		%)	(0.70		%)
Other expenses	(0.37		%)	(0.37		%)	(0.38		%)
Change in fair value of derivatives related to fixed-indexed annuities	(0.15		%)	(0.22		%)	(0.19		%)
Unlocking	(0.09		%)	(0.01		%)	0.01		%
Net spread earned on fixed annuities	1.07		%	1.23		%	1.29		%

The table below illustrates the impact of fair value accounting for derivatives related to fixed-indexed annuities on the annuity segment’s net spread earned on fixed annuities:

	Year ended December 31,
	2018		2017		2016
Net spread earned on fixed annuities — before impact of unlocking and derivatives related to FIAs	1.26	%	1.34	%	1.38	%
Unlocking	(0.09	%)	(0.01	%)	0.01	%
Impact of derivatives related to fixed-indexed annuities:
Change in fair value of derivatives	(0.15	%)	(0.22	%)	(0.19	%)
Related impact on amortization of DPAC (*)	0.05	%	0.12	%	0.09	%
Related impact on amortization of deferred sales inducements (*)	—	%	—	%	—	%
Net spread earned on fixed annuities	1.07	%	1.23	%	1.29	%

(*) An estimate of the related acceleration/deceleration of the amortization of deferred policy acquisition costs and deferred sales inducements.

Annuity Net Investment Income

Net investment income in 2018 was $1.64 billion compared to $1.46 billion in 2017, an increase of $180 million (12%). This increase reflects the growth in AFG’s annuity business and higher earnings from limited partnerships and similar investments, partially offset by the impact of lower investment yields. The overall yield earned on investments in AFG’s annuity operations, calculated as net investment income divided by average investment balances (at amortized cost), increased by 0.10 percentage points to 4.73% from 4.63% in 2018 compared to 2017. This increase in net investment yield reflects higher earnings from limited partnerships and similar investments, partially offset by (i) the investment of new premium dollars at lower yields as compared to the existing investment portfolio and (ii) the impact of the reinvestment of proceeds from maturity and redemption of higher yielding investments at the lower yields available in the financial markets. AFG’s annuity operations recorded $114 million in earnings from partnerships and similar investments and AFG-managed CLOs in 2018 compared to $53 million in 2017, an increase of $61 million (115%). The yield earned on these investments was 12.4% in 2018 compared to 8.2% in 2017. The high returns from limited partnerships and similar investments should not be expected to repeat in future periods. For the period from October 1, 2017 through December 31, 2018, $5.8 billion in annuity segment investments with an average yield of approximately 4.9% were redeemed or sold with the proceeds reinvested at an approximately 0.5% lower yield.

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Net investment income in 2017 was $1.46 billion compared to $1.36 billion in 2016, an increase of $102 million (8%). This increase reflects growth in AFG’s annuity business, partially offset by the impact of lower investment yields. The overall yield earned on investments in AFG’s annuity operations decreased by 0.14 percentage points to 4.63% from 4.77% in 2017 compared to 2016. This decline in net investment yield reflects (i) the investment of new premium dollars at lower yields as compared to the existing investment portfolio and (ii) the impact of the reinvestment of proceeds from maturity and redemption of higher yielding investments at the lower yields available in the financial markets. During 2017, $4.9 billion in annuity segment investments with an average yield of 5.14% were redeemed or sold while the investments purchased during 2017 (with new premium dollars and the redemption/sale proceeds) had an average yield at purchase of 3.94%.

Annuity Interest Credited — Fixed

Interest credited — fixed in 2018 was $704 million compared to $633 million in 2017, an increase of $71 million (11%), reflecting the impact of growth in the annuity business. The average interest rate credited to policyholders, calculated as interest credited divided by average fixed annuity benefits accumulated, increased0.02 percentage points to 2.03% in 2018 from 2.01% in 2017 due primarily to higher crediting rates on new business.

Interest credited — fixed in 2017 was $633 million compared to $574 million in 2016, an increase of $59 million (10%). The impact of growth in the annuity business was partially offset by lower interest crediting rates on new premiums as compared to the crediting rates on policyholder funds surrendered or withdrawn. The average interest rate credited to policyholders decreased0.03 percentage points to 2.01% in 2017 from 2.04% in 2016.

Annuity Net Interest Spread

AFG’s net interest spread increased0.08 percentage points to 2.70% from 2.62% in 2018 compared to 2017 due primarily to higher earnings from limited partnerships and similar investments, partially offset by lower investment yields. Features included in current annuity offerings allow AFG to achieve its desired profitability at a lower net interest spread than historical product offerings. As a result, AFG expects its net interest spread to narrow in the future.

AFG’s net interest spread decreased0.11 percentage points to 2.62% in 2017 from 2.73% in 2016 due primarily to lower fixed maturity investment yields, partially offset by the impact of lower crediting rates.

Annuity Policy Charges and Other Miscellaneous Income

Annuity policy charges and other miscellaneous income, which consist primarily of surrender charges, amortization of deferred upfront policy charges (unearned revenue) and income from sales of real estate, were $42 million in 2018 compared to $43 million in 2017, a decrease of $1 million (2%). Excluding the impact of unlocking charges of $1 million in 2018 and $3 million in 2017 related to unearned revenue, annuity policy charges and other miscellaneous income were $43 million in 2018 compared to $46 million in 2017, a decrease of $3 million (7%). Other miscellaneous income includes $1 million from the sale of real estate in 2017. Excluding the impact of unlocking charges related to unearned revenue, annuity policy charges and other miscellaneous income as a percentage of average fixed annuity benefits accumulated decreased0.01 percentage points to 0.10% in 2018 from 0.11% in 2017.

Annuity policy charges and other miscellaneous income were $43 million in 2017 compared to $50 million in 2016, a decrease of $7 million (14%). Excluding the impact of unlocking charges of $3 million in 2017 and $1 million in 2016 related to unearned revenue, annuity policy charges and other miscellaneous income were $46 million in 2017 compared to $51 million in 2016, a decrease of $5 million (10%). Other miscellaneous income includes $1 million in income from the sale of real estate in 2017 compared to $5 million in 2016. Excluding the impact of unlocking charges related to unearned revenue, annuity policy charges and other miscellaneous income as a percentage of average fixed annuity benefits accumulated decreased0.04 percentage points to 0.11% in 2017 from 0.15% in 2016.

See “Annuity Unlocking” below for a discussion of the impact that the unlocking of actuarial assumptions had on annuity policy charges and other miscellaneous income.

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Other Annuity Benefits, Net of Guaranteed Withdrawal Benefit Fees

Other annuity benefits, net of guaranteed withdrawal benefit fees (excluding the impact of unlocking) were $114 million in 2018, $89 million in 2017 and $92 million in 2016, representing an increase of $25 million (28%) in 2018 compared to 2017 and a decrease of $3 million (3%) in 2017 compared to 2016. As a percentage of average fixed annuity benefits accumulated, these net expenses increased 0.05 percentage points to 0.33% in 2018 from 0.28% in 2017 and decreased 0.05 percentage points to 0.28% in 2017 from 0.33% in 2016. In addition to interest credited to policyholders’ accounts and the change in fair value of derivatives related to fixed-indexed annuities, annuity benefits expense also includes the following expenses (in millions, net of guaranteed withdrawal benefit fees):

	Year ended December 31,
	2018			2017			2016
Change in expected death and annuitization reserve	$	17		$	18		$	18
Amortization of sales inducements	19			19			24
Change in guaranteed withdrawal benefit reserve:
Impact of change in the stock market	14			(14		)	(6		)
Accretion of benefits and other	92			81			75
Change in other benefit reserves	37			45			34
Other annuity benefits	179			149			145
Offset guaranteed withdrawal benefit fees	(65		)	(60		)	(53		)
Other annuity benefits, net	$	114		$	89		$	92

As discussed under “Annuity Benefits Accumulated” in Note A — “Accounting Policies” to the financial statements, guaranteed withdrawal benefit reserves are accrued for and modified using assumptions similar to those used in establishing and amortizing deferred policy acquisition costs. The guaranteed withdrawal benefit reserve related to FIAs can be inversely impacted by the calculated FIA embedded derivative reserve as the value to policyholders of the guaranteed withdrawal benefits increases when the benefit of stock market participation decreases. As shown in the table above, the change in the stock market increased AFG’s guaranteed withdrawal benefit reserve by $14 million in 2018 compared to a favorable impact of $14 million in 2017. This $28 million increase (200%) was the primary cause of the $25 million overall increase in other annuity benefits, net of guaranteed withdrawal fees in 2018 compared to 2017.

See “Annuity Unlocking” below for a discussion of the impact that the unlocking of actuarial assumptions had on annuity benefits expense.

Annuity Acquisition Expenses

Annuity acquisition expenses were $255 million in 2018 compared to $168 million in 2017, an increase of $87 million (52%). Excluding the $29 million and $35 million favorable impact on amortization of DPAC from the unlocking recorded in 2018 and 2017, respectively, annuity acquisition expenses were $284 million in 2018 compared to $203 million in 2017, an increase of $81 million (40%), reflecting growth in the business and the acceleration (in 2018) and deceleration (in 2017) of DPAC amortization related to changes in the fair value of derivatives related to FIAs. Excluding the impact of unlocking charges (expense reductions) discussed under “Annuity Unlocking” below, AFG’s amortization of DPAC and commission expenses as a percentage of average fixed annuity benefits accumulated was 0.79% in 2018 compared to 0.62% in 2017 and 0.70% in 2016 and has generally ranged between 0.75% and 0.85%. Variances from the general range relate primarily to the impact of (i) material changes in interest rates or the stock market on AFG’s fixed-indexed annuity business, and (ii) differences in actual experience from actuarially projected estimates and assumptions. For example, the positive impact of higher than anticipated interest rates during 2018 on the fair value of derivatives related to FIAs (discussed below) resulted in a partially offsetting acceleration in the amortization of DPAC. In contrast, the negative impact of significantly lower than anticipated interest rates during 2017 and 2016 on the fair value of derivatives related to FIAs resulted in a partially offsetting deceleration of the amortization of DPAC.

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The table below illustrates the estimated impact of fair value accounting for derivatives related to fixed-indexed annuities on annuity acquisition expenses as a percentage of average fixed annuity benefits accumulated (excluding the impact of unlocking):

	Year ended December 31,
	2018		2017		2016
Before the impact of changes in the fair value of derivatives related to FIAs on the amortization of DPAC	0.84	%	0.74	%	0.79	%
Impact of changes in fair value of derivatives related to FIAs on the amortization of DPAC (*)	(0.05	%)	(0.12	%)	(0.09	%)
Annuity acquisition expenses as a % of fixed annuity benefits accumulated	0.79	%	0.62	%	0.70	%

(*) An estimate of the acceleration/deceleration in the amortization of deferred policy acquisition costs resulting from fair value accounting for derivatives related to fixed-indexed annuities.

See “Annuity Unlocking” below for a discussion of the impact that the unlocking of actuarial assumptions had on annuity and supplemental insurance acquisition expenses. Unanticipated spread compression, decreases in the stock market, adverse mortality experience, and higher than expected lapse rates could lead to write-offs of DPAC or PVFP in the future.

Annuity Other Expenses

Annuity other expenses were $131 million in 2018, $121 million in 2017 and $110 million in 2016, representing an increase of $10 million (8%) in 2018 compared to 2017 and an increase of $11 million (10%) in 2017 compared to 2016. Annuity other expenses represent primarily general and administrative expenses, as well as selling and issuance expenses that are not deferred. As a percentage of average fixed annuity benefits accumulated, these expenses remained unchanged at 0.37% in 2018 and 2017 and decreased0.01 percentage points to 0.37% in 2017 from 0.38% in 2016. The increase in annuity other expenses in 2017 compared to 2016 reflects primarily growth in the business and an increase in the number of sales personnel focused on new initiatives and increased market share within existing financial institutions and retail marketing organizations.

Change in Fair Value of Derivatives Related to Fixed-Indexed (Including Variable-Indexed) Annuities

AFG’s fixed-indexed (including variable-indexed) annuities provide policyholders with a crediting rate tied, in part, to the performance of an existing stock market or other financial index. AFG attempts to mitigate the risk in the index-based component of these products through the purchase and sale of call and put options on the appropriate index. AFG’s strategy is designed so that the change in the fair value of the call option assets and put option liabilities will generally offset the economic change in the net liability from the index participation. Both the index-based component of the annuities (an embedded derivative) and the related call and put options are considered derivatives that must be adjusted for changes in fair value through earnings each period. The change in the fair value of the embedded derivative includes an ongoing expense for interest accreted on the embedded derivative. The interest accreted in any period is generally based on the size of the embedded derivative and current interest rates. The fair values of these derivatives are impacted by actual and expected stock market performance and interest rates as well as other factors. For a list of other factors impacting the fair value of the embedded derivative component of AFG’s annuity benefits accumulated, see Note D — “Fair Value Measurements” to the financial statements. Fluctuations in certain of these factors, such as changes in interest rates and the performance of the stock market, are not economic in nature for the current reporting period, but rather impact the timing of reported results.

Excluding the impact of unlocking charges, the net change in fair value of derivatives related to fixed-indexed annuities increased annuity benefits by $51 million in 2018, $70 million in 2017 and $53 million in 2016. The change in the fair value of these derivatives includes $36 million in 2018, $16 million in 2017 and $7 million in 2016 in interest accreted on the embedded derivative (before DPAC amortization). AFG expects both the size of the embedded derivative and interest rates to rise, resulting in continued increases in interest on the embedded derivative. During 2018, the positive impact of higher than expected interest rates on the fair value of these derivatives was more than offset by the higher interest on the embedded derivative, the negative impact of higher than expected option costs and significantly lower stock market performance. The increase in 2017 and 2016 reflects the negative impact of significantly lower than anticipated interest rates on the fair value of these derivatives, partially offset by the positive impact of strong stock market performance in both periods. As a percentage of average fixed annuity benefits accumulated, this net expense decreased0.07 percentage points to 0.15% in 2018 from 0.22% in 2017, and increased0.03 percentage points to 0.22% in 2017 from 0.19% in 2016.

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Fluctuations in interest rates and the stock market, among other factors, can cause volatility in the periodic measurement of fair value of the embedded derivative that management believes can be inconsistent with the long-term economics of these products. The table below illustrates the impact of fair value accounting for derivatives related to fixed-indexed annuities on the annuity segment’s earnings before income taxes (dollars in millions):

	Year ended December 31,									% Change
	2018			2017			2016			2018 - 2017		2017 - 2016
Earnings before income taxes — before unlocking and change in fair value of derivatives related to FIAs	$	425		$	416		$	394		2	%	6	%
Unlocking	(31		)	(3		)	1			933	%	(400	%)
Impact of derivatives related to FIAs:
Change in fair value of derivatives related to FIAs	(51		)	(70		)	(53		)	(27	%)	32	%
Related impact on amortization of DPAC (*)	18			37			26			(51	%)	42	%
Earnings before income taxes	$	361		$	380		$	368		(5	%)	3	%

(*) An estimate of the related acceleration/deceleration of amortization of deferred sales inducements and deferred policy acquisition costs.

As illustrated in the table above, the change in fair value of derivatives related to fixed-indexed annuities, including the related impact on amortization of DPAC decreased the annuity segment’s earnings before income taxes by $33 million in both 2018 and 2017 and $27 million in 2016.

	Year ended December 31,									% Change
	2018			2017			2016			2018 - 2017		2017 - 2016
Interest on the embedded derivative liability	$	(36	)	$	(16	)	$	(7	)	125	%	129	%
Change in the stock market, including volatility	(11		)	29			6			(138	%)	383	%
Changes in interest rates higher (lower) than expected	33			(50		)	(29		)	(166	%)	72	%
Renewal option costs lower (higher) than expected	(6		)	4			5			(250	%)	(20	%)
Other, including the impact of actual versus expected lapses	(13		)	—			(2		)	—	%	(100	%)
Impact of derivatives related to FIAs	$	(33	)	$	(33	)	$	(27	)	—	%	22	%

See “Annuity Unlocking” below for a discussion of the impact that the unlocking of actuarial assumptions had on the change in the fair value of the embedded derivative liability.

Annuity Net Spread Earned on Fixed Annuities

AFG’s net spread earned on fixed annuities decreased0.16 percentage points to 1.07% in 2018 from 1.23% in 2017 due primarily to the net impact of changes in the fair value of derivatives and related DPAC amortization offset discussed above and the impact of the unlocking of actuarial assumptions discussed below, partially offset by the 0.08 percentage points increase in AFG’s net interest spread.

AFG’s net spread earned on fixed annuities decreased0.06 percentage points to 1.23% in 2017 from 1.29% in 2016 due primarily to the 0.11 percentage points decrease in AFG’s net interest spread, partially offset by other small net positive items.

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Annuity Benefits Accumulated

Annuity premiums received and benefit payments are recorded as increases or decreases in annuity benefits accumulated rather than as revenue and expense. Increases in this liability for interest credited and other benefits are charged to expense and decreases for surrender and other policy charges are credited to other income.

For certain products, annuity benefits accumulated also includes reserves for accrued persistency and premium bonuses, excess benefits expected to be paid on future deaths and annuitizations (“EDAR”) and guaranteed withdrawal benefits. Annuity benefits accumulated also includes amounts advanced from the Federal Home Loan Bank of Cincinnati. The following table is a progression of AFG’s annuity benefits accumulated liability for 2018, 2017 and 2016 (in millions):

	Year ended December 31,
	2018			2017			2016
Beginning fixed annuity reserves	$	33,005		$	29,647		$	26,371
Fixed annuity premiums (receipts)	5,382			4,313			4,398
Federal Home Loan Bank advances and repayments	225			(64		)	150
Surrenders, benefits and other withdrawals	(2,836		)	(2,246		)	(2,189		)
Interest and other annuity benefit expenses:
Interest credited	704			633			574
Embedded derivative mark-to-market	(248		)	564			194
Change in other benefit reserves	140			117			122
Unlocking	59			41			27
Ending fixed annuity reserves	$	36,431		$	33,005		$	29,647
Reconciliation to annuity benefits accumulated per balance sheet:
Ending fixed annuity reserves (from above)	$	36,431		$	33,005		$	29,647
Impact of unrealized investment gains	10			133			76
Fixed component of variable annuities	175			178			184
Annuity benefits accumulated per balance sheet	$	36,616		$	33,316		$	29,907

Statutory Annuity Premiums

AFG’s annuity operations generated statutory premiums of $5.41 billion in 2018, $4.34 billion in 2017 and $4.44 billion in 2016, an increase of $1.07 billion (25%) in 2018 compared to 2017 and a decrease of $94 million (2%) in 2017 compared to 2016. The following table summarizes AFG’s annuity sales (dollars in millions):

	Year ended December 31,						% Change
	2018		2017		2016		2018 - 2017		2017 - 2016
Financial institutions single premium annuities — indexed	$	1,776	$	1,711	$	1,950	4	%	(12	%)
Financial institutions single premium annuities — fixed	492		622		468		(21	%)	33	%
Retail single premium annuities — indexed	1,418		990		1,056		43	%	(6	%)
Retail single premium annuities — fixed	87		70		73		24	%	(4	%)
Broker dealer single premium annuities — indexed	1,271		733		658		73	%	11	%
Broker dealer single premium annuities — fixed	14		7		9		100	%	(22	%)
Pension risk transfer	132		6		—		2,100	%	—	%
Education market — fixed and indexed annuities	192		174		184		10	%	(5	%)
Total fixed annuity premiums	5,382		4,313		4,398		25	%	(2	%)
Variable annuities	25		28		37		(11	%)	(24	%)
Total annuity premiums	$	5,407	$	4,341	$	4,435	25	%	(2	%)

Management believes the 25% increase in annuity premiums in 2018 compared to 2017 is the result of the introduction of new products, efforts to expand in the retail and broker dealer markets and an improving interest rate environment in 2018.

Management attributes the 2% decrease in annuity premiums in 2017 compared to 2016 to AFG’s adherence to pricing discipline in a relatively low and decreasing interest rate environment during the year, as well as from aggressive pricing in certain of AFG’s competitors.

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Annuity Unlocking

AFG monitors the major actuarial assumptions underlying its annuity operations throughout the year and conducts detailed reviews (“unlocking”) of its assumptions in the fourth quarter of each year. If changes in the economic environment or actual experience would cause material revisions to future estimates, these assumptions are updated (unlocked) in an interim period. AFG recorded net unlocking charges related to its annuity business of $31 million and $3 million in 2018 and 2017, respectively, and a net expense reduction of $1 million in 2016, which impacted AFG’s financial statements as follows (in millions):

	Year ended December 31,
	2018			2017			2016
Policy charges and other miscellaneous income:
Unearned revenue	$	(1	)	$	(3	)	$	(1	)
Total revenues	(1		)	(3		)	(1		)
Annuity benefits:
Fixed-indexed annuities embedded derivative	44			25			17
Sales inducements	—			(6		)	(4		)
Other reserves	15			16			10
Total annuity benefits	59			35			23
Annuity and supplemental insurance acquisition expenses:
Deferred policy acquisition costs	(29		)	(35		)	(25		)
Total costs and expenses	30			—			(2		)
Net expense reduction (charge)	$	(31	)	$	(3	)	$	1

See “Annuity Unlocking” under “Annuity Segment — Results of Operations” for the quarters ended December 31, 2018 and 2017 for a discussion of the overall net expense reduction from the periodic review of actuarial assumptions in the fourth quarter of 2018 and 2017.

In addition to the $4 million net charge from the periodic review of annuity assumptions in the fourth quarter of 2018, AFG recorded a $27 million net unlocking charge in the second quarter of 2018 due primarily to the unfavorable impact of higher projected option costs, partially offset by the favorable impact of an increase in projected net interest spreads on in-force business (due primarily to higher than previously anticipated reinvestment rates). Reinvestment rate assumptions are based primarily on 7-year and 10-year corporate bond yields.

Annuity Earnings before Income Taxes Reconciliation

The following table reconciles the net spread earned on AFG’s fixed annuities to overall annuity pretax earnings for 2018, 2017 and 2016 (in millions):

	Year ended December 31,
	2018			2017			2016
Earnings on fixed annuity benefits accumulated	$	370		$	387		$	363
Earnings impact of investments in excess of fixed annuity benefits accumulated (*)	(11		)	(13		)	4
Variable annuity earnings	2			6			1
Earnings before income taxes	$	361		$	380		$	368

(*) Net investment income (as a % of investments) of 4.73%, 4.63% and 4.77% in 2018, 2017 and 2016, respectively, multiplied by the difference between average fixed annuity investments (at amortized cost) and average fixed annuity benefits accumulated in each period.

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Holding Company, Other and Unallocated — Results of Operations AFG’s net GAAP pretax loss outside of its property and casualty insurance and annuity operations (excluding realized gains and losses) totaled $165 million in 2018 compared to $252 million in 2017, a decrease of $87 million (35%). AFG’s net core pretax loss outside of its property and casualty insurance and annuity operations (excluding realized gains and losses) totaled $156 million in 2018 compared to $177 million in 2017, a decrease of $21 million (12%).

AFG’s net GAAP pretax loss outside of its property and casualty insurance and annuity operations (excluding realized gains and losses) totaled $252 million in 2017 compared to $177 million in 2016, an increase of $75 million (42%). AFG’s net core pretax loss outside of its property and casualty insurance and annuity operations (excluding realized gains and losses) totaled $177 million in 2017 compared to $174 million in 2016, an increase of $3 million (2%).

The following table details AFG’s GAAP and core loss before income taxes from operations outside of its insurance operations in 2018, 2017 and 2016 (dollars in millions):

	Year ended December 31,									% Change
	2018			2017			2016			2018 - 2017		2017 - 2016
Revenues:
Life, accident and health net earned premiums	$	24		$	22		$	24		9	%	(8	%)
Net investment income	25			34			27			(26	%)	26	%
Other income — P&C fees	69			66			60			5	%	10	%
Other income	29			27			27			7	%	—	%
Total revenues	147			149			138			(1	%)	8	%
Costs and Expenses:
Property and casualty insurance — commissions and other underwriting expenses	23			25			19			(8	%)	32	%
Life, accident and health benefits	40			26			33			54	%	(21	%)
Life, accident and health acquisition expenses	6			5			5			20	%	—	%
Other expense — expenses associated with P&C fees	46			41			41			12	%	—	%
Other expenses (*)	126			144			137			(13	%)	5	%
Costs and expenses, excluding interest charges on borrowed money	241			241			235			—	%	3	%
Core loss before income taxes, excluding realized gains and losses and interest charges on borrowed money	(94		)	(92		)	(97		)	2	%	(5	%)
Interest charges on borrowed money	62			85			77			(27	%)	10	%
Core loss before income taxes, excluding realized gains and losses	(156		)	(177		)	(174		)	(12	%)	2	%
Pretax non-core special A&E charges	(9		)	(24		)	(5		)	(63	%)	380	%
Pretax non-core loss on retirement of debt	—			(51		)	—			(100	%)	—	%
Pretax non-core realized gain on subsidiaries	—			—			2			—	%	(100	%)
GAAP loss before income taxes, excluding realized gains and losses	$	(165	)	$	(252	)	$	(177	)	(35	%)	42	%

(*) Excludes pretax non-core special A&E charges of $9 million, $24 million and $5 million in 2018, 2017 and 2016, respectively, and a pretax non-core loss on retirement of debt of $51 million in 2017.

Holding Company and Other — Life, Accident and Health Premiums, Benefits and Acquisition Expenses

AFG’s run-off long-term care and life insurance operations recorded net earned premiums of $24 million and related benefits and acquisition expenses of $46 million in 2018 compared to net earned premiums of $22 million and related benefits and acquisition expenses of $31 million in 2017. The $14 million (54%) increase in life, accident and health benefits reflects higher claims in both the run-off long-term care and run-off life insurance businesses in 2018 compared to 2017.

AFG’s run-off long-term care and life insurance operations recorded net earned premiums of $22 million and related benefits and acquisition expenses of $31 million in 2017 compared to net earned premiums of $24 million and related benefits and acquisition expenses of $38 million in 2016. The $7 million (21%) decrease in life, accident and health benefits reflects the impact of improved life claims experience in 2017 compared to 2016.

Holding Company and Other — Net Investment Income

AFG recorded net investment income on investments held outside of its property and casualty insurance and annuity operations of $25 million, $34 million and $27 million in 2018, 2017 and 2016, respectively. The $9 million (26%) decrease in 2018 as

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compared to 2017 and the $7 million (26%) increase in 2017 as compared to 2016 is due primarily to the impact of the market performance on a small portfolio of securities that are carried at fair value through net investment income. These securities decreased in value by $4 million in 2018 and increased in value by $6 million in 2017.

Holding Company and Other — P&C Fees and Related Expenses

Summit, a workers’ compensation insurance subsidiary, collects fees from a small group of unaffiliated insurers for providing underwriting, policy administration and claims services. In addition, certain of AFG’s property and casualty businesses collect fees from customers for ancillary services such as workplace safety programs and premium financing. In 2018, AFG collected $69 million in fees for these services compared to $66 million in 2017 and $60 million in 2016. Management views this fee income, net of the $46 million in 2018 and $41 million in both 2017 and 2016, in expenses incurred to generate such fees, as a reduction in the cost of underwriting its property and casualty insurance policies. Consistent with internal management reporting, these fees and the related expenses are netted and recorded as a reduction of commissions and other underwriting expenses in AFG’s segmented results.

Holding Company and Other — Other Income

Other income in the table above includes $16 million, $18 million and $17 million in 2018, 2017 and 2016, respectively, in management fees paid to AFG by the AFG-managed CLOs (AFG’s consolidated managed investment entities). The management fees are eliminated in consolidation — see the other income line in the Consolidated MIEs column under “Results of Operations — Segmented Statement of Earnings.” Excluding amounts eliminated in consolidation, AFG recorded other income outside of its property and casualty insurance and annuity operations of $13 million in 2018, $9 million in 2017 and $10 million in 2016.

Holding Company and Other — Other Expenses

Excluding the non-core special A&E charges and the non-core losses on retirement of debt discussed below, AFG’s holding companies and other operations outside of its property and casualty insurance and annuity operations recorded other expenses of $126 million in 2018 compared to $144 million in 2017, a decrease of $18 million (13%). This decrease reflects lower holding company expenses related to employee benefit plans that are tied to stock market performance, partially offset by a $5 million charge to increase liabilities related to the environmental exposures of AFG’s former railroad and manufacturing operations in 2018. AFG’s holding companies and other operations outside of its property and casualty insurance and annuity operations recorded other expenses of $144 million in 2017 compared to $137 million in 2016, an increase of $7 million (5%). This increase reflects higher holding company expenses related to employee benefit plans that are tied to stock market performance, partially offset by the impact of a $5 million donation to the University of Cincinnati College of Business in 2016.

Holding Company and Other — Interest Charges on Borrowed Money

The following table details the principal amount of AFG’s long-term debt balances as of January 1, 2018, January 1, 2017 and January 1, 2016 (dollars in millions):

	January 1, 2018			January 1, 2017			January 1, 2016
Direct obligations of AFG:
4.50% Senior Notes due June 2047	$	590		$	—		$	—
3.50% Senior Notes due August 2026	425			300			—
9-7/8% Senior Notes due June 2019	—			350			350
6-3/8% Senior Notes due June 2042	—			230			230
5-3/4% Senior Notes due August 2042	—			125			125
6-1/4% Subordinated Debentures due September 2054	150			150			150
6% Subordinated Debentures due November 2055	150			150			150
Other	3			3			3
Total principal amount of Holding Company Debt	$	1,318		$	1,308		$	1,008
Weighted Average Interest Rate	4.6		%	6.5		%	7.4		%

AFG’s holding companies and other operations outside of its property and casualty insurance and annuity operations recorded interest expense of $62 million in 2018, $85 million in 2017 and $77 million in 2016. The $23 million (27%) decrease in interest expense in 2018 compared to 2017 is due primarily to a lower weighted average interest rate on AFG’s outstanding debt. The $8 million (10%) increase in interest expense in 2017 compared to 2016 reflects higher average indebtedness during 2017 compared to 2016, partially offset by a lower weighted average interest rate on outstanding debt.

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The decrease in the weighted average interest rate for 2018 compared to 2017 and 2017 compared to 2016 reflects the following financing transactions completed by AFG in 2016 and 2017:

• Issued $300 million of 3.50% Senior Notes in August 2016

• Issued $350 million of 4.50% Senior Notes in June 2017

• Redeemed $230 million of 6-3/8% Senior Notes in June 2017

• Redeemed $125 million of 5-3/4% Senior Notes in August 2017

• Issued an additional $125 million of 3.50% Senior Notes in November 2017

• Issued an additional $240 million of 4.50% Senior Notes in November 2017

• Redeemed $350 million of 9-7/8% Senior Notes in December 2017

Holding Company and Other — Special A&E Charges

As a result of the comprehensive external studies and internal reviews of A&E exposures discussed under “Uncertainties — Asbestos and Environmental-related (“A&E”) Insurance Reserves,” AFG’s holding companies and other operations outside of its property and casualty insurance and annuity operations recorded non-core special charges of $9 million in 2018, $24 million in 2017 and $5 million in 2016 to increase liabilities related to the A&E exposures of AFG’s former railroad and manufacturing operations. The charges in 2018, 2017 and 2016 are due to relatively small movements across several sites that primarily reflect changes in the scope and costs of investigation. In addition, AFG has seen a small increase in claims arising from exposure to deleterious substances other than asbestos, which has caused it to increase its estimated future liability. Total charges recorded to increase liabilities for A&E exposures of AFG’s former railroad and manufacturing operations (included in other expenses) were $21 million in 2018, $31 million in 2017 and $20 million in 2016.

Holding Company and Other — Loss on Retirement of Debt

In December 2017, AFG redeemed its $350 million outstanding principal amount of 9-7/8% Senior Notes due 2019 and recorded a pretax loss on retirement of debt of $40 million, primarily a $38 million make-whole premium. In addition, AFG wrote off unamortized debt issuance costs of $7 million related to the redemption of its $230 million outstanding 6-3/8% Senior Notes due 2042 at par value in June 2017 and $4 million related to the redemption of its $125 million outstanding 5-3/4% Senior Notes due 2042 at par value in August 2017.

Consolidated Realized Gains (Losses) on Securities AFG’s consolidated realized gains (losses) on securities, which are not allocated to segments, were net losses of $266 million in 2018 compared to net gains of $5 million in 2017, a decrease of $271 million (5,420%). AFG’s consolidated realized gains (losses) on securities were net gains of $5 million in 2017 compared to $19 million in 2016, a decrease of $14 million (74%). Realized gains (losses) on securities consisted of the following (in millions):

	Year ended December 31,
	2018			2017			2016
Realized gains (losses) before impairments:
Disposals	$	9		$	87		$	151
Change in the fair value of equity securities (*)	(262		)	—			—
Change in the fair value of derivatives	(5		)	(6		)	(9		)
Adjustments to annuity deferred policy acquisition costs and related items	11			(3		)	(7		)
	(247		)	78			135
Impairment charges:
Securities	(26		)	(88		)	(131		)
Adjustments to annuity deferred policy acquisition costs and related items	7			15			15
	(19		)	(73		)	(116		)
Realized gains (losses) on securities	$	(266	)	$	5		$	19

(*) As discussed in Note A — “Accounting Policies — Investments,” beginning in January 2018, all equity securities other than those accounted for under the equity method are carried at fair value through net earnings. This amount includes a $279 million net loss on securities that were still held at December 31, 2018.

The $262 million net realized loss from the change in the fair value of equity securities in 2018 includes losses of $92 million on banks and financing companies, $31 million on real estate investment trusts, $30 million on energy exploration and production companies and $27 million on asset management companies. AFG’s impairment charges on securities in 2018 all relate to fixed maturities. Approximately $19 million of impairment charges were taken on corporate bonds and $6 million were taken on residential MBS.

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AFG’s impairment charges on securities in 2017 consist of $63 million on equity securities, $21 million on fixed maturities and $4 million on other investments. Approximately $28 million of the impairment charges in 2017 relates to investments in pharmaceutical companies, $24 million relates to investments in various industrial entities, $14 million relates to investments in financial institutions and $12 million relates to investments in media companies.

AFG’s impairment charges on securities in 2016 consist of $93 million on equity securities and $38 million on fixed maturities. Approximately $70 million in impairment charges in 2016 are related to financial institutions, $19 million are on energy related investments and $7 million relates to a pharmaceutical company.

Consolidated Income Taxes   AFG’s consolidated provision for income taxes was $122 million in 2018 compared to $247 million in 2017, a decrease of $125 million (51%). AFG’s consolidated provision for income taxes was $247 million in 2017 compared to $119 million in 2016, an increase of $128 million (108%). See NoteL — “Income Taxes” to the financial statements for an analysis of items affecting AFG’s effective tax rate.

Consolidated Noncontrolling Interests   AFG’s consolidated net earnings (losses) attributable to noncontrolling interests was a net loss of $13 million in 2018 compared to net earnings of $2 million in 2017, an increase of $15 million (750%). AFG’s consolidated net earnings (losses) attributable to noncontrolling interests was earnings of $2 million in 2017 compared to $19 million in 2016, a decrease of $17 million (89%). The following table details net earnings (losses) in consolidated subsidiaries attributable to holders other than AFG (dollars in millions):

	Year ended December 31,							% Change
	2018			2017		2016		2018 - 2017		2017 - 2016
Neon	$	(13	)	$	—	$	—	—	%	—	%
National Interstate	—			—		15		—	%	(100	%)
Other	—			2		4		(100	%)	(50	%)
Earnings (losses) attributable to noncontrolling interests	$	(13	)	$	2	$	19	(750	%)	(89	%)

Other noncontrolling interests includes $2 million related to the gain on the sale of a hotel property in the first quarter of 2017 and $4 million related to the gain on the sale of an apartment property in the second quarter of 2016. Both properties were owned by an 80%-owned subsidiary of GAI.

RECENTLY ADOPTED ACCOUNTING STANDARDS

In the fourth quarter of 2017, AFG adopted Accounting Standards Update (“ASU”) 2017-04, which simplifies the test for goodwill impairment. Under the previous guidance, if the quantitative test for impairment indicated that the carrying value of a reporting unit exceeded its fair value, an entity had to perform procedures to determine the fair value (at the impairment testing date) of its assets and liabilities (including unrecognized assets and liabilities) following the procedure that would be required in determining the fair value of assets acquired and liabilities assumed in a business combination. Under the new guidance, an impairment charge is measured as the excess of the reporting unit’s carrying value over its fair value (up to the full amount of the goodwill). Because the annual impairment testing of AFG’s goodwill in 2017 did not require quantitative testing, the implementation of the new guidance had no impact on AFG’s results of operations or financial position. In addition, AFG does not expect the new guidance to have a material effect on its results of operations or financial position in future periods.

See Note A — “Accounting Policies — Investments” to the financial statements for a discussion of accounting guidance adopted on January 1, 2018, which, among other things, requires equity investments that are not accounted for under the equity method of accounting to be measured at fair value with changes in fair value recognized in net earnings, clarifies that the need for a valuation allowance on a deferred tax asset related to available for sale securities should be evaluated with other deferred tax assets and modifies disclosure requirements for financial instruments.

See Note A — “Accounting Policies — Income Taxes” to the financial statements for a discussion of accounting guidance adopted effective December 31, 2017, which allows the reclassification of amounts stranded in accumulated other comprehensive income from accounting for the Tax Cuts and Jobs Act of 2017 to retained earnings.

99

ACCOUNTING STANDARDS TO BE ADOPTED

See Note A — “Accounting Policies — Lease Accounting Guidance Effective in 2019” to the financial statements for a discussion of accounting guidance adopted on January 1, 2019, which requires entities that lease assets for terms longer than one year to recognize the assets and liabilities for the rights and obligations created by those leases on the balance sheet based on the present value of cash flows.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, which provides a new credit loss model for determining credit-related impairments for financial instruments measured at amortized cost (e.g. mortgage loans or reinsurance recoverables) and requires an entity to estimate the credit losses expected over the life of an exposure or pool of exposures. The estimate of expected credit losses considers historical information, current information, as well as reasonable and supportable forecasts, including estimates of prepayments. The expected credit losses, and subsequent increases or decreases in such losses, will be recorded immediately through realized gains (losses) as an allowance that is deducted from the amortized cost basis of the financial asset, with the net carrying value of the financial asset presented on the balance sheet at the amount expected to be collected. The updated guidance also amends the current other-than-temporary impairment model for available for sale debt securities by requiring the recognition of impairments relating to credit losses through an allowance account and limits the amount of credit loss to the difference between a security’s amortized cost basis and its fair value. Subsequent increases or decreases in expected credit losses will be recorded immediately in the income statement through realized gains (losses). AFG will be required to adopt this guidance effective January 1, 2020. AFG cannot estimate the impact that the updated guidance will have on its results of operations, financial position or liquidity until the updated guidance is adopted.

In August 2018, the FASB issued ASU 2018-12, Financial Services – Insurance: Targeted Improvements to the Accounting for Long-Duration Contracts, which changes the assumptions used to measure the liability for future policy benefits for traditional and limited pay contracts (e.g. life, accident and health benefits) from being locked in at inception to being updated at least annually and standardizes the liability discount rate to be used and updated each reporting period, requires the measurement of market risk benefits associated with deposit contracts (e.g. annuities) to be recorded at fair value, simplifies the amortization of deferred policy acquisition costs to a constant level basis over the expected life of the related contracts and requires enhanced disclosures. AFG will be required to adopt this guidance effective January 1, 2022. AFG cannot estimate the impact that the updated guidance will have on its results of operations, financial position or liquidity until the updated guidance is adopted.

100

ITEM 7A

Quantitative and Qualitative Disclosures about Market Risk

Market risk represents the potential economic loss arising from adverse changes in the fair value of financial instruments. AFG’s exposures to market risk relate primarily to its investment portfolio and annuity contracts, which are exposed to interest rate risk and, to a lesser extent, equity price risk. To a much lesser extent, AFG’s long-term debt is also exposed to interest rate risk.

Fixed Maturity Portfolio   In general, the fair value of AFG’s fixed maturity investments is inversely correlated to changes in market interest rates. AFG’s fixed maturity portfolio is comprised of primarily fixed-rate investments with intermediate-term maturities. This practice is designed to allow flexibility in reacting to fluctuations of interest rates. The portfolios of AFG’s insurance operations are managed with an attempt to achieve an adequate risk-adjusted return while maintaining sufficient liquidity to meet policyholder obligations. AFG’s annuity and run-off long-term care and life operations attempt to align the duration of their invested assets to the projected cash flows of policyholder liabilities.

Consistent with the discussion in Item 7 — Management’s Discussion and Analysis — “Investments,” the following table demonstrates the sensitivity of the fair value of AFG’s fixed maturity portfolio to reasonably likely changes in interest rates by illustrating the estimated effect on AFG’s fixed maturity portfolio and accumulated other comprehensive income that an immediate increase of 100 basis points in the interest rate yield curve would have at December 31 (based on the duration of the portfolio, dollars in millions). Effects of increases or decreases from the 100 basis points illustrated would be approximately proportional.

	2018			2017
Fair value of fixed maturity portfolio	$	42,102		$	38,727
Percentage impact on fair value of 100 bps increase in interest rates	(4.5		%)	(5.0		%)
Pretax impact on fair value of fixed maturity portfolio	$	(1,895	)	$	(1,936	)
Offsetting adjustments to deferred policy acquisition costs and other balance sheet amounts	800			750
Estimated pretax impact on accumulated other comprehensive income	(1,095		)	(1,186		)
Deferred income tax	230			249
Estimated after-tax impact on accumulated other comprehensive income	$	(865	)	$	(937	)

Municipal bonds represented approximately 17% of AFG’s fixed maturity portfolio at December 31, 2018. AFG’s municipal bond portfolio is high quality, with 99% of the securities rated investment-grade at that date. The portfolio is well diversified across the states of issuance and individual issuers. At December 31, 2018, approximately 78% of the municipal bond portfolio was held in revenue bonds, with the remaining 22% held in general obligation bonds. AFG does not own general obligation bonds issued by Puerto Rico.

Annuity Contracts Substantially all of AFG’s fixed rate annuity contracts permit AFG to change crediting rates (subject to minimum interest rate guarantees as determined by applicable law) enabling management to react to changes in market interest rates. In 2003, AFG began issuing products with guaranteed minimum interest rates (“GMIRs”) of less than 2%; almost all new business since late 2010 has been issued at a 1% GMIR. At December 31, 2018, AFG could reduce the average crediting rate on approximately $28 billion of traditional fixed and fixed-indexed annuities without guaranteed withdrawal benefits by approximately 119 basis points (on a weighted average basis).

As presented in Item 7 — Management’s Discussion and Analysis — “Results of Operations — Annuity Segment — Years ended December 31, 2018, 2017 and 2016 — Net Spread on Fixed Annuities,” the interest credited rate as a percent of fixed annuity benefits accumulated on AFG’s in-force block of fixed annuities was 2.03% for the year ended December 31, 2018. Management estimates that the interest credited rate on this in-force business will range from 2.10% to 2.20% over the next five years. This rate reflects actuarial assumptions as to (i) expected investment spreads, (ii) deaths, (iii) annuitizations, (iv) surrenders and other withdrawals and (v) renewal premiums. Actual experience and changes in actuarial assumptions may result in different effective crediting rates than those above.

Actuarial assumptions used to estimate DPAC and certain annuity liabilities, as well as AFG’s ability to maintain spread, could be impacted if a low interest rate environment continues for an extended period, or if increases in interest rates cause policyholder behavior to differ significantly from current expectations.

101

Projected payments (in millions) in each of the subsequent five years and for all years thereafter on AFG’s fixed annuity liabilities at December 31 were as follows.

	First		Second		Third		Fourth		Fifth		Thereafter		Total		Fair Value (*)
2018	$	3,493	$	3,989	$	4,609	$	4,701	$	4,640	$	22,156	$	43,588	$	34,765
2017	2,655		3,071		3,481		4,121		4,343		20,982		38,653		32,461

(*) Fair value of annuity benefits accumulated excluding life contingent annuities in the payout phase (carrying value of $232 million at December 31, 2018 and $206 million at December 31, 2017).

AFG’s fixed-indexed (including variable-indexed) annuities provide policyholders with a crediting rate tied, in part, to the performance of an existing stock market or other financial index. AFG attempts to mitigate the risk in the index-based component of these products through the purchase and sale of call and put options on the appropriate index. AFG’s strategy is designed so that the change in the fair value of the call option assets and put option liabilities will generally offset the economic change in the net liability from the index participation. Both the index-based component of the annuities (an embedded derivative) and the related call and put options are considered derivatives that must be adjusted for changes in fair value through earnings each period. See Note D — “Fair Value Measurements” and Note F — “Derivatives” to the financial statements for a discussion of these derivatives.

Long-Term DebtThe following table shows scheduled principal payments on fixed-rate long-term debt of AFG and its subsidiaries and related weighted average interest rates for each of the subsequent five years and for all years thereafter (dollars in millions):

	December 31, 2018					December 31, 2017
	Scheduled Principal Payments		Rate			Scheduled Principal Payments		Rate
2019	$	—	—	%	2018	$	—	—	%
2020	—		—	%	2019	—		—	%
2021	—		—	%	2020	—		—	%
2022	—		—	%	2021	—		—	%
2023	—		—	%	2022	—		—	%
Thereafter	1,318		4.6	%	Thereafter	1,318		4.6	%
Total	$	1,318	4.6	%	Total	$	1,318	4.6	%
Fair Value	$	1,231			Fair Value	$	1,354

102

ITEM 8

Financial Statements and Supplementary Data

	Page
Report of Independent Registered Public Accounting Firm	F-1
Consolidated Balance Sheet as of December 31, 2018 and 2017	F-2
Consolidated Statement of Earnings for the years ended December 31, 2018, 2017 and 2016	F-3
Consolidated Statement of Comprehensive Income for the years ended December 31, 2018, 2017 and 2016	F-4
Consolidated Statement of Changes in Equity for the years ended December 31, 2018, 2017 and 2016	F-5
Consolidated Statement of Cash Flows for the years ended December 31, 2018, 2017 and 2016	F-6
Notes to Consolidated Financial Statements	F-7

Selected Quarterly Financial Data has been included in Note N to the Consolidated Financial Statements.

ITEM 9A

Controls and Procedures

AFG’s management, with participation of its Co-Chief Executive Officers and its Chief Financial Officer, has evaluated AFG’s disclosure controls and procedures (as defined in Exchange Act Rule 13a-15) as of the end of the period covered by this report. Based on that evaluation, AFG’s Co-CEOs and CFO concluded that the controls and procedures are effective. There have been no changes in AFG’s internal control over financial reporting during the fourth fiscal quarter of 2018 that materially affected, or are reasonably likely to materially affect, AFG’s internal control over financial reporting.

MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

AFG’s management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Securities Exchange Act Rules 13a-15(f). Under the supervision and with the participation of management, including AFG’s Co-Chief Executive Officers and Chief Financial Officer, AFG conducted an evaluation of the effectiveness of internal control over financial reporting as of December 31, 2018, based on the criteria set forth in “Internal Control — Integrated Framework” issued in 2013 by the Committee of Sponsoring Organizations of the Treadway Commission.

There are inherent limitations to the effectiveness of any system of internal controls and procedures, including the possibility of human error and the circumvention or overriding of the controls and procedures. Accordingly, even effective internal controls and procedures can only provide reasonable assurance of achieving their control objectives.

Based on AFG’s evaluation, management concluded that internal control over financial reporting was effective as of December 31, 2018. The attestation report of AFG’s independent registered public accounting firm on AFG’s internal control over financial reporting as of December 31, 2018, is set forth on the next page.

103

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

ON INTERNAL CONTROL OVER FINANCIAL REPORTING

To the shareholders and Board of Directors of American Financial Group, Inc. and subsidiaries

Opinion on Internal Control over Financial Reporting

We have audited American Financial Group, Inc. and subsidiaries’ internal control over financial reporting as of December 31, 2018, based on criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, American Financial Group, Inc. and subsidiaries (the “Company”) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2018, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the consolidated balance sheets of the Company as of December 31, 2018 and 2017, and the related consolidated statements of earnings, comprehensive income, changes in equity and cash flows for each of the three years in the period ended December 31, 2018, and the related notes and financial statement schedules listed in the Index at Item 15(a)(2) and our report dated February 26, 2019, expressed an unqualified opinion thereon.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ ERNST & YOUNG LLP

Cincinnati, Ohio

February 26, 2019

104

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the shareholders and Board of Directors of American Financial Group, Inc. and subsidiaries

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of American Financial Group, Inc. and subsidiaries (the “Company”) as of December 31, 2018 and 2017, the related consolidated statements of earnings, comprehensive income, changes in equity and cash flows for each of the three years in the period ended December 31, 2018, and the related notes and financial statement schedules listed in the Index at Item 15(a)(2) (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2018 and 2017, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2018, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the Company’s internal control over financial reporting as of December 31, 2018, based on criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated February 26, 2019 expressed an unqualified opinion thereon.

Adoption of New Accounting Standard

As discussed in Note A to the consolidated financial statements, the Company changed its method of accounting for equity investments, other than those accounted for under the equity method, to measure equity investments at fair value with changes in fair value recognized in net earnings for the year ended December 31, 2018.

Basis for Opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures include examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

/s/ ERNST & YOUNG LLP

We have served as the Company’s auditor since 1961.

Cincinnati, Ohio

February 26, 2019

F-1

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEET

(Dollars in Millions)

	December 31,
	2018		2017
Assets:
Cash and cash equivalents	$	1,515	$	2,338
Investments:
Fixed maturities, available for sale at fair value (amortized cost — $41,837 and $37,038)	41,997		38,379
Fixed maturities, trading at fair value	105		348
Equity securities, at fair value	1,814		1,662
Investments accounted for using the equity method	1,374		999
Mortgage loans	1,068		1,125
Policy loans	174		184
Equity index call options	184		701
Real estate and other investments	267		312
Total cash and investments	48,498		46,048
Recoverables from reinsurers	3,349		3,369
Prepaid reinsurance premiums	610		600
Agents’ balances and premiums receivable	1,234		1,146
Deferred policy acquisition costs	1,682		1,216
Assets of managed investment entities	4,700		4,902
Other receivables	1,090		1,030
Variable annuity assets (separate accounts)	557		644
Other assets	1,529		1,504
Goodwill	207		199
Total assets	$	63,456	$	60,658
Liabilities and Equity:
Unpaid losses and loss adjustment expenses	$	9,741	$	9,678
Unearned premiums	2,595		2,410
Annuity benefits accumulated	36,616		33,316
Life, accident and health reserves	635		658
Payable to reinsurers	752		743
Liabilities of managed investment entities	4,512		4,687
Long-term debt	1,302		1,301
Variable annuity liabilities (separate accounts)	557		644
Other liabilities	1,774		1,887
Total liabilities	58,484		55,324
Redeemable noncontrolling interests	—		3
Shareholders’ equity:
Common Stock, no par value — 200,000,000 shares authorized — 89,291,724 and 88,275,460 shares outstanding	89		88
Capital surplus	1,245		1,181
Retained earnings	3,588		3,248
Accumulated other comprehensive income, net of tax	48		813
Total shareholders’ equity	4,970		5,330
Noncontrolling interests	2		1
Total equity	4,972		5,331
Total liabilities and equity	$	63,456	$	60,658

See notes to consolidated financial statements.

F-2

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF EARNINGS

(In Millions, Except Per Share Data)

	Year ended December 31,
	2018			2017			2016
Revenues:
Property and casualty insurance net earned premiums	$	4,865		$	4,579		$	4,328
Life, accident and health net earned premiums	24			22			24
Net investment income	2,094			1,831			1,696
Realized gains (losses) on:
Securities (*)	(266		)	5			19
Subsidiaries	—			—			2
Income (loss) of managed investment entities:
Investment income	255			210			190
Gain (loss) on change in fair value of assets/liabilities	(21		)	12			15
Other income	199			206			224
Total revenues	7,150			6,865			6,498
Costs and Expenses:
Property and casualty insurance:
Losses and loss adjustment expenses	3,003			2,955			2,762
Commissions and other underwriting expenses	1,583			1,407			1,349
Annuity benefits	998			892			800
Life, accident and health benefits	40			26			33
Annuity and supplemental insurance acquisition expenses	261			173			186
Interest charges on borrowed money	62			85			77
Expenses of managed investment entities	211			181			151
Other expenses	353			422			353
Total costs and expenses	6,511			6,141			5,711
Earnings before income taxes	639			724			787
Provision for income taxes	122			247			119
Net earnings, including noncontrolling interests	517			477			668
Less: Net earnings (losses) attributable to noncontrolling interests	(13		)	2			19
Net Earnings Attributable to Shareholders	$	530		$	475		$	649
Earnings Attributable to Shareholders per Common Share:
Basic	$	5.95		$	5.40		$	7.47
Diluted	$	5.85		$	5.28		$	7.33
Average number of Common Shares:
Basic	89.0			87.8			86.9
Diluted	90.6			89.8			88.5
________________________________________
(*) Consists of the following:
Realized gains (losses) before impairments	$	(247	)	$	78		$	135
Losses on securities with impairment	(19		)	(74		)	(115		)
Non-credit portion recognized in other comprehensive income (loss)	—			1			(1		)
Impairment charges recognized in earnings	(19		)	(73		)	(116		)
Total realized gains (losses) on securities	$	(266	)	$	5		$	19

See notes to consolidated financial statements.

F-3

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME

(In Millions)

	Year ended December 31,
	2018			2017			2016
Net earnings, including noncontrolling interests	$	517		$	477		$	668
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on securities:
Unrealized holding gains (losses) on securities arising during the period	(544		)	297			80
Reclassification adjustment for realized (gains) losses included in net earnings	8			(10		)	(12		)
Total net unrealized gains (losses) on securities	(536		)	287			68
Net unrealized gains (losses) on cash flow hedges	2			(4		)	(8		)
Foreign currency translation adjustments	(10		)	12			7
Pension and other postretirement plans adjustments	—			1			—
Other comprehensive income (loss), net of tax	(544		)	296			67
Total comprehensive income (loss), net of tax	(27		)	773			735
Less: Comprehensive income (loss) attributable to noncontrolling interests	(13		)	2			24
Comprehensive income (loss) attributable to shareholders	$	(14	)	$	771		$	711

See notes to consolidated financial statements.

F-4

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY

(Dollars in Millions)

			Shareholders’ Equity																		Redeemable
	Common		Common Stock and Capital			Retained			Accumulated Other Comp.						Noncon- trolling			Total			Noncon- trolling
	Shares		Surplus			Earnings			Inc. (Loss)			Total			Interests			Equity			Interests
Balance at December 31, 2015	87,474,452		$	1,301		$	2,987		$	304		$	4,592		$	178		$	4,770		$	—
Net earnings	—		—			649			—			649			19			668			—
Other comprehensive income	—		—			—			62			62			5			67			—
Dividends ($2.1525 per share)	—		—			(187		)	—			(187		)	—			(187		)	—
Shares issued:
Exercise of stock options	958,344		32			—			—			32			—			32			—
Restricted stock awards	318,940		—			—			—			—			—			—			—
Other benefit plans	95,875		7			—			—			7			—			7			—
Dividend reinvestment plan	25,516		2			—			—			2			—			2			—
Stock-based compensation expense	—		22			—			—			22			—			22			—
Shares acquired and retired	(1,911,976	)	(29		)	(104		)	—			(133		)	—			(133		)	—
Shares exchanged — benefit plans	(32,707	)	—			(2		)	—			(2		)	—			(2		)	—
Forfeitures of restricted stock	(4,045	)	—			—			—			—			—			—			—
Acquisition of noncontrolling interests	—		(137		)	—			9			(128		)	(187		)	(315		)	—
Other	—		—			—			—			—			(12		)	(12		)	—
Balance at December 31, 2016	86,924,399		$	1,198		$	3,343		$	375		$	4,916		$	3		$	4,919		$	—
Net earnings	—		—			475			—			475			2			477			—
Other comprehensive income	—		—			—			296			296			—			296			—
Impact of the U.S. corporate tax rate change on AOCI	—		—			(145		)	145			—			—			—			—
Dividends ($4.7875 per share)	—		—			(421		)	—			(421		)	—			(421		)	—
Shares issued:
Exercise of stock options	1,020,986		34			—			—			34			—			34			—
Restricted stock awards	232,250		—			—			—			—			—			—			—
Other benefit plans	99,588		10			—			—			10			—			10			—
Dividend reinvestment plan	42,572		4			—			—			4			—			4			—
Stock-based compensation expense	—		24			—			—			24			—			24			—
Shares exchanged — benefit plans	(37,718	)	(1		)	(4		)	—			(5		)	—			(5		)	—
Forfeitures of restricted stock	(6,617	)	—			—			—			—			—			—			—
Sale of redeemable noncontrolling interests	—		—			—			(3		)	(3		)	—			(3		)	3
Other	—		—			—			—			—			(4		)	(4		)	—
Balance at December 31, 2017	88,275,460		$	1,269		$	3,248		$	813		$	5,330		$	1		$	5,331		$	3
Cumulative effect of accounting change	—		—			225			(221		)	4			—			4			—
Net earnings (losses)	—		—			530			—			530			1			531			(14		)
Other comprehensive loss	—		—			—			(544		)	(544		)	—			(544		)	—
Dividends ($4.45 per share)	—		—			(397		)	—			(397		)	—			(397		)	—
Shares issued:
Exercise of stock options	778,270		29			—			—			29			—			29			—
Restricted stock awards	200,625		—			—			—			—			—			—			—
Other benefit plans	103,797		12			—			—			12			—			12			—
Dividend reinvestment plan	29,998		3			—			—			3			—			3			—
Stock-based compensation expense	—		23			—			—			23			—			23			—
Shares acquired and retired	(65,589	)	(1		)	(5		)	—			(6		)	—			(6		)	—
Shares exchanged — benefit plans	(26,520	)	(1		)	(2		)	—			(3		)	—			(3		)	—
Forfeitures of restricted stock	(4,317	)	—			—			—			—			—			—			—
Other	—		—			(11		)	—			(11		)	—			(11		)	11
Balance at December 31, 2018	89,291,724		$	1,334		$	3,588		$	48		$	4,970		$	2		$	4,972		$	—

See notes to consolidated financial statements.

F-5

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF CASH FLOWS

(In Millions)

	Year ended December 31,
	2018			2017			2016
Operating Activities:
Net earnings, including noncontrolling interests	$	517		$	477		$	668
Adjustments:
Depreciation and amortization	210			107			134
Annuity benefits	998			892			800
Realized (gains) losses on investing activities	265			(23		)	(61		)
Net sales of trading securities	111			17			79
Deferred annuity and life policy acquisition costs	(263		)	(225		)	(230		)
Change in:
Reinsurance and other receivables	(211		)	(963		)	(315		)
Other assets	96			13			(467		)
Insurance claims and reserves	425			1,321			533
Payable to reinsurers	9			109			43
Other liabilities	(140		)	(18		)	265
Managed investment entities’ assets/liabilities	148			60			(279		)
Other operating activities, net	(82		)	37			(20		)
Net cash provided by operating activities	2,083			1,804			1,150
Investing Activities:
Purchases of:
Fixed maturities	(10,183		)	(9,485		)	(7,537		)
Equity securities	(568		)	(182		)	(207		)
Mortgage loans	(167		)	(254		)	(341		)
Equity index options and other investments	(973		)	(831		)	(738		)
Real estate, property and equipment	(80		)	(109		)	(49		)
Businesses	(36		)	—			—
Proceeds from:
Maturities and redemptions of fixed maturities	4,948			6,105			4,713
Repayments of mortgage loans	201			215			262
Sales of fixed maturities	501			392			641
Sales of equity securities	247			216			348
Sales and settlements of equity index options and other investments	883			789			319
Sales of real estate, property and equipment	3			55			55
Cash and cash equivalents of businesses acquired	13			—			—
Managed investment entities:
Purchases of investments	(2,117		)	(2,979		)	(2,254		)
Proceeds from sales and redemptions of investments	1,948			2,774			1,890
Other investing activities, net	30			2			(83		)
Net cash used in investing activities	(5,350		)	(3,292		)	(2,981		)
Financing Activities:
Annuity receipts	5,632			4,341			4,585
Annuity surrenders, benefits and withdrawals	(2,916		)	(2,405		)	(2,275		)
Net transfers from variable annuity assets	47			54			42
Additional long-term borrowings	—			712			302
Reductions of long-term debt	—			(745		)	(18		)
Issuances of managed investment entities’ liabilities	1,983			2,731			2,293
Retirements of managed investment entities’ liabilities	(1,935		)	(2,585		)	(1,600		)
Issuances of Common Stock	33			37			35
Repurchases of Common Stock	(6		)	—			(133		)
Cash dividends paid on Common Stock	(394		)	(417		)	(185		)
Acquisition of noncontrolling interests in subsidiary	—			—			(315		)
Other financing activities, net	—			(4		)	(13		)
Net cash provided by financing activities	2,444			1,719			2,718
Net Change in Cash and Cash Equivalents	(823		)	231			887
Cash and cash equivalents at beginning of year	2,338			2,107			1,220
Cash and cash equivalents at end of year	$	1,515		$	2,338		$	2,107

See notes to consolidated financial statements.

F-6

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

INDEX TO NOTES
A.	Accounting Policies	I.	Goodwill and Other Intangibles
B.	Acquisitions and Sale of Businesses	J.	Long-Term Debt
C.	Segments of Operations	K.	Shareholders’ Equity
D.	Fair Value Measurements	L.	Income Taxes
E.	Investments	M.	Contingencies
F.	Derivatives	N.	Quarterly Operating Results (Unaudited)
G.	Deferred Policy Acquisition Costs	O.	Insurance
H.	Managed Investment Entities	P.	Additional Information

A.     Accounting Policies

Basis of Presentation   The consolidated financial statements include the accounts of American Financial Group, Inc. and its subsidiaries (“AFG”). Certain reclassifications have been made to prior years to conform to the current year’s presentation. All significant intercompany balances and transactions have been eliminated. The results of operations of companies since their formation or acquisition are included in the consolidated financial statements. Events or transactions occurring subsequent to December 31, 2018, and prior to the filing of this Form 10-K, have been evaluated for potential recognition or disclosure herein.

The preparation of the financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Changes in circumstances could cause actual results to differ materially from those estimates.

Fair Value Measurements   Accounting standards define fair value as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants on the measurement date. The standards establish a hierarchy of valuation techniques based on whether the assumptions that market participants would use in pricing the asset or liability (“inputs”) are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect AFG’s assumptions about the assumptions market participants would use in pricing the asset or liability. AFG did not have any significant nonrecurring fair value measurements of nonfinancial assets and liabilities in 2018 or 2017.

Investments On January 1, 2018, AFG adopted Accounting Standards Update (“ASU”) 2016-01, which requires all equity securities other than those accounted for under the equity method to be reported at fair value with holding gains and losses recognized in net earnings. At December 31, 2017, AFG had $1.60 billion in equity securities classified as “available for sale” under the prior guidance with holding gains and losses included in accumulated other comprehensive income (“AOCI”) instead of net earnings. At the date of adoption, the $221 million net unrealized gain on equity securities included in AOCI was reclassified to retained earnings as the cumulative effect of an accounting change. The cumulative effect of the accounting change also includes the net unrealized gain on AFG’s small number of limited partnerships and similar investments carried at cost under the prior guidance that are carried at fair value through net earnings under the new guidance ($4 million net of tax at the date of adoption).

Holding gains and losses on equity securities carried at fair value under ASU 2016-01 are generally recorded in realized gains (losses) on securities. However, prior to the adoption of the new guidance, AFG classified a small portion of its equity securities as “trading” and reported those investments at fair value with holding gains and losses recognized in net investment income. These investments consisted primarily of equity securities held to offset the impact of changes in the stock market on employee benefit plans that are impacted by stock market performance and totaled $62 million at December 31, 2017. Following the adoption of the new guidance, AFG continues to record holding gains and losses on these securities, as well as its small portfolio of limited partnerships and similar investments carried at fair value under the new guidance and certain other securities classified at purchase as “fair value through net investment income” in net investment income.

Under the new guidance, AFG recorded holding losses of $257 million on equity securities in net earnings during 2018 on securities that were still owned at December 31, 2018. Under the prior guidance, these holding losses would have been recorded in AOCI (with the exception of any impairment charge that may have been recorded). Because almost all of the equity

F-7

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

securities impacted by the new guidance were carried at fair value through AOCI under the prior guidance, the adoption of the new guidance did not have a material impact on AFG’s financial position.

Fixed maturity securities classified as “available for sale” are reported at fair value with unrealized gains and losses included in AOCI in AFG’s Balance Sheet. Fixed maturity securities classified as “trading” are reported at fair value with changes in unrealized holding gains or losses during the period included in net investment income. Mortgage and policy loans are carried primarily at the aggregate unpaid balance.

Premiums and discounts on fixed maturity securities are amortized using the effective interest method. Mortgage-backed securities (“MBS”) are amortized over a period based on estimated future principal payments, including prepayments. Prepayment assumptions are reviewed periodically and adjusted to reflect actual prepayments and changes in expectations.

Limited partnerships and similar investments are generally accounted for using the equity method of accounting. Under the equity method, AFG records its share of the earnings or losses of the investee based on when they are reported by the investee in its financial statements rather than in the period in which the investee declares a dividend. AFG’s share of the earnings or losses from equity method investments is generally recorded on a quarter lag due to the timing of the receipt of the investee’s financial statements. AFG’s equity in the earnings (losses) of limited partnerships and similar investments is included in net investment income.

Gains or losses on fixed-maturity securities are determined on the specific identification basis. When a decline in the value of a specific investment is considered to be other-than-temporary at the balance sheet date, a provision for impairment is charged to earnings (included in realized gains (losses) on securities) and the cost basis of that investment is reduced. If management can assert that it does not intend to sell an impaired fixed maturity security and it is not more likely than not that it will have to sell the security before recovery of its amortized cost basis, then the other-than-temporary impairment is separated into two components: (i) the amount related to credit losses (recorded in earnings) and (ii) the amount related to all other factors (recorded in other comprehensive income). The credit-related portion of an other-than-temporary impairment is measured by comparing a security’s amortized cost to the present value of its current expected cash flows discounted at its effective yield prior to the impairment charge. Both components are shown in the statement of earnings. If management intends to sell an impaired security, or it is more likely than not that it will be required to sell the security before recovery, an impairment charge to earnings is recorded to reduce the amortized cost of that security to fair value.

Derivatives Derivatives included in AFG’s Balance Sheet are recorded at fair value. Changes in fair value of derivatives are included in earnings, unless the derivatives are designated and qualify as highly effective cash flow hedges. Derivatives that do not qualify for hedge accounting under GAAP consist primarily of (i) components of certain fixed maturity securities (primarily interest-only and principal-only MBS) and (ii) the equity-based component of certain annuity products (included in annuity benefits accumulated) and related equity index options designed to be consistent with the characteristics of the liabilities and used to mitigate the risk embedded in those annuity products.

To qualify for hedge accounting, at the inception of a derivative contract, AFG formally documents the relationship between the terms of the hedge and the hedged items and its risk management objective. This documentation includes defining how hedge effectiveness and ineffectiveness will be measured on a retrospective and prospective basis.

Changes in the fair value of derivatives that are designated and qualify as highly effective cash flow hedges are recorded in AOCI and are reclassified into earnings when the variability of the cash flows from the hedged items impacts earnings. Any hedge ineffectiveness is immediately recorded in current period earnings. When the change in the fair value of a qualifying cash flow hedge is included in earnings, it is included in the same line item in the statement of earnings as the cash flows from the hedged item. AFG uses interest rate swaps that are designated and qualify as highly effective cash flow hedges to mitigate interest rate risk related to certain floating-rate securities included in AFG’s portfolio of fixed maturity securities.

For derivatives that are designated and qualify as highly effective fair value hedges, changes in the fair value of the derivative, along with changes in the fair value of the hedged item attributable to the hedged risk, are recognized in current period earnings.

Goodwill Goodwill represents the excess of cost of subsidiaries over AFG’s equity in their underlying net assets. Goodwill is not amortized, but is subject to an impairment test at least annually. An entity is not required to complete the quantitative annual goodwill impairment test on a reporting unit if the entity elects to perform a qualitative analysis and determines that it is more likely than not that the reporting unit’s fair value exceeds its carrying amount.

F-8

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Reinsurance Amounts recoverable from reinsurers are estimated in a manner consistent with the claim liability associated with the reinsured policies. AFG’s property and casualty insurance subsidiaries report as assets (i) the estimated reinsurance recoverable on paid and unpaid losses, including an estimate for losses incurred but not reported, and (ii) amounts paid or due to reinsurers applicable to the unexpired terms of policies in force. Payable to reinsurers includes ceded premiums due to reinsurers, as well as ceded premiums retained by AFG’s property and casualty insurance subsidiaries under contracts to fund ceded losses as they become due. AFG’s insurance subsidiaries also assume reinsurance from other companies. Earnings on reinsurance assumed is recognized based on information received from ceding companies.

An AFG subsidiary cedes life insurance policies to a third party on a funds withheld basis whereby the subsidiary retains the assets (securities) associated with the reinsurance contract. Interest is credited to the reinsurer based on the actual investment performance of the retained assets. This reinsurance contract is considered to contain an embedded derivative (that must be adjusted to fair value) because the yield on the payable is based on a specific block of the ceding company’s assets, rather than the overall creditworthiness of the ceding company. AFG determined that changes in the fair value of the underlying portfolio of fixed maturity securities is an appropriate measure of the value of the embedded derivative. The securities related to this contract are classified as “trading.” The adjustment to fair value on the embedded derivative offsets the investment income recorded on the adjustment to fair value of the related trading portfolio.

Deferred Policy Acquisition Costs (“DPAC”)   Policy acquisition costs (principally commissions, premium taxes and certain underwriting and policy issuance costs) directly related to the successful acquisition or renewal of an insurance contract are deferred. DPAC also includes capitalized costs associated with sales inducements offered to fixed annuity policyholders such as enhanced interest rates and premium and persistency bonuses.

For the property and casualty companies, DPAC is limited based upon recoverability without any consideration for anticipated investment income and is charged against income ratably over the terms of the related policies. A premium deficiency is recognized if the sum of expected claims costs, claims adjustment expenses and unamortized acquisition costs exceed the related unearned premiums. A premium deficiency is first recognized by charging any unamortized acquisition costs to expense to the extent required to eliminate the deficiency. If the premium deficiency is greater than unamortized acquisition costs, a liability is accrued for the excess deficiency and reported with unpaid losses and loss adjustment expenses.

DPAC related to annuities is deferred to the extent deemed recoverable and amortized, with interest, in relation to the present value of actual and expected gross profits on the policies. Expected gross profits consist principally of estimated future investment margin (estimated future net investment income less interest credited on policyholder funds) and surrender, mortality, and other life and annuity policy charges, less death, annuitization and guaranteed withdrawal benefits in excess of account balances and estimated future policy administration expenses. To the extent that realized gains and losses result in adjustments to the amortization of DPAC related to annuities, such adjustments are reflected as components of realized gains (losses) on securities.

DPAC related to traditional life and health insurance is amortized over the expected premium paying period of the related policies, in proportion to the ratio of annual premium revenues to total anticipated premium revenues. See “Life, Accident and Health Reserves” below for details on the impact of loss recognition on the accounting for traditional life and health insurance contracts.

DPAC includes the present value of future profits on business in force of annuity and life, accident and health insurance companies acquired (“PVFP”). PVFP represents the portion of the costs to acquire companies that is allocated to the value of the right to receive future cash flows from insurance contracts existing at the date of acquisition. PVFP is amortized with interest in relation to expected gross profits of the acquired policies for annuities and universal life products and in relation to the premium paying period for traditional life and health insurance products.

DPAC and certain other balance sheet amounts related to annuity and life businesses are also adjusted, net of tax, for the change in expense that would have been recorded if the unrealized gains (losses) from securities had actually been realized. These adjustments are included in unrealized gains (losses) on marketable securities, a component of AOCI in AFG’s Balance Sheet.

Managed Investment EntitiesA company is considered the primary beneficiary of, and therefore must consolidate, a variable interest entity (“VIE”) based primarily on its ability to direct the activities of the VIE that most significantly impact that entity’s economic performance and the obligation to absorb losses of, or receive benefits from, the entity that could potentially be significant to the VIE.

F-9

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

AFG manages, and has investments in, collateralized loan obligations (“CLOs”) that are VIEs (see Note H — “Managed Investment Entities”). AFG has determined that it is the primary beneficiary of the CLOs because (i) its role as asset manager gives it the power to direct the activities that most significantly impact the economic performance of the CLOs and (ii) through its investment in the CLO debt tranches, it has exposure to CLO losses (limited to the amount AFG invested) and the right to receive CLO benefits that could potentially be significant to the CLOs.

Because AFG has no right to use the CLO assets and no obligation to pay the CLO liabilities, the assets and liabilities of the CLOs are shown separately in AFG’s Balance Sheet. AFG has elected the fair value option for reporting on the CLO assets and liabilities to improve the transparency of financial reporting related to the CLOs. The net gain or loss from accounting for the CLO assets and liabilities at fair value is presented separately in AFG’s Statement of Earnings.

The fair values of a CLO’s assets may differ from the separately measured fair values of its liabilities even though the CLO liabilities only have recourse to the CLO assets. AFG has set the carrying value of the CLO liabilities equal to the fair value of the CLO assets (which have more observable fair values) as an alternative to reporting those liabilities at a separately measured fair value. CLO earnings attributable to AFG’s shareholders are measured by the change in the fair value of AFG’s investments in the CLOs and management fees earned.

Unpaid Losses and Loss Adjustment Expenses   The net liabilities stated for unpaid claims and for expenses of investigation and adjustment of unpaid claims represent management’s best estimate and are based upon (i) the accumulation of case estimates for losses reported prior to the close of the accounting period on direct business written; (ii) estimates received from ceding reinsurers and insurance pools and associations; (iii) estimates of unreported losses (including possible development on known claims) based on past experience; (iv) estimates based on experience of expenses for investigating and adjusting claims; and (v) the current state of the law and coverage litigation. Establishing reserves for asbestos, environmental and other mass tort claims involves considerably more judgment than other types of claims due to, among other things, inconsistent court decisions, an increase in bankruptcy filings as a result of asbestos-related liabilities, novel theories of coverage, and judicial interpretations that often expand theories of recovery and broaden the scope of coverage.

Loss reserve liabilities are subject to the impact of changes in claim amounts and frequency and other factors. Changes in estimates of the liabilities for losses and loss adjustment expenses are reflected in the statement of earnings in the period in which determined. Despite the variability inherent in such estimates, management believes that the liabilities for unpaid losses and loss adjustment expenses are adequate.

Annuity Benefits Accumulated   Annuity receipts and benefit payments are recorded as increases or decreases in annuity benefits accumulated rather than as revenue and expense. Increases in this liability for interest credited are charged to annuity benefits expense and decreases for annuity policy charges are recorded in other income. For traditional fixed annuities, the liability for annuity benefits accumulated represents the account value that had accrued to the benefit of the policyholder as of the balance sheet date. For fixed-indexed annuities, the liability for annuity benefits accumulated includes an embedded derivative that represents the estimated fair value of the index participation with the remaining component representing the discounted value of the guaranteed minimum contract benefits.

For certain products, annuity benefits accumulated also includes reserves for accrued persistency and premium bonuses, guaranteed withdrawals and excess benefits expected to be paid on future deaths and annuitizations (“EDAR”). The liabilities for EDAR and guaranteed withdrawals are accrued for and modified using assumptions consistent with those used in determining DPAC and DPAC amortization, except that amounts are determined in relation to the present value of total expected assessments. Total expected assessments consist principally of estimated future investment margin, surrender, mortality, and other life and annuity policy charges, and unearned revenues once they are recognized as income.

Annuity benefits accumulated also includes amounts advanced from the Federal Home Loan Bank of Cincinnati.

Unearned Revenue   Certain upfront policy charges on annuities are deferred as unearned revenue (included in other liabilities) and recognized in net earnings (included in other income) using the same assumptions and estimated gross profits used to amortize DPAC.

F-10

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Life, Accident and Health Reserves Liabilities for future policy benefits under traditional life, accident and health policies are computed using the net level premium method. Computations are based on the original projections of investment yields, mortality, morbidity and surrenders and include provisions for unfavorable deviations unless a loss recognition event (premium deficiency) occurs. Claim reserves and liabilities established for accident and health claims are modified as necessary to reflect actual experience and developing trends.

For long-duration contracts (such as traditional life and long-term care policies), loss recognition occurs when, based on current expectations as of the measurement date, existing contract liabilities plus the present value of future premiums (including reasonably expected rate increases) are not expected to cover the present value of future claims payments and related settlement and maintenance costs (excluding overhead) as well as unamortized acquisition costs. If a block of business is determined to be in loss recognition, a charge is recorded in earnings in an amount equal to the excess of the present value of expected future claims costs and unamortized acquisition costs over existing reserves plus the present value of expected future premiums (with no provision for adverse deviation). The charge is recorded first to reduce unamortized acquisition costs and then as an additional reserve (if unamortized acquisition costs have been reduced to zero).

In addition, reserves for traditional life and long-term care policies are subject to adjustment for loss recognition charges that would have been recorded if the unrealized gains (losses) from securities had actually been realized. This adjustment is included in unrealized gains (losses) on marketable securities, a component of AOCI in AFG’s Balance Sheet.

Debt Issuance CostsDebt issuance costs related to AFG’s outstanding debt are presented in its Balance Sheet as a direct reduction in the carrying value of long-term debt and are amortized over the life of the related debt using the effective interest method as a component of interest expense. Debt issuance costs related to AFG’s revolving credit facilities are included in other assets in AFG’s Balance Sheet.

Variable Annuity Assets and Liabilities   Separate accounts related to variable annuities represent the fair value of deposits invested in underlying investment funds on which AFG earns a fee. Investment funds are selected and may be changed only by the policyholder, who retains all investment risk.

AFG’s variable annuity contracts contain a guaranteed minimum death benefit (“GMDB”) to be paid if the policyholder dies before the annuity payout period commences. In periods of declining equity markets, the GMDB may exceed the value of the policyholder’s account. A GMDB liability is established for future excess death benefits using assumptions together with a range of reasonably possible scenarios for investment fund performance that are consistent with DPAC capitalization and amortization assumptions.

Premium Recognition   Property and casualty premiums are earned generally over the terms of the policies on a pro rata basis. Unearned premiums represent that portion of premiums written, which is applicable to the unexpired terms of policies in force. On reinsurance assumed from other insurance companies or written through various underwriting organizations, unearned premiums are based on information received from such companies and organizations. For traditional life, accident and health products, premiums are recognized as revenue when legally collectible from policyholders. For interest-sensitive life and universal life products, premiums are recorded in a policyholder account, which is reflected as a liability. Revenue is recognized as amounts are assessed against the policyholder account for mortality coverage and contract expenses.

Noncontrolling Interests   For balance sheet purposes, noncontrolling interests represent the interests of shareholders other than AFG in consolidated entities. In the statement of earnings, net earnings and losses attributable to noncontrolling interests represents such shareholders’ interest in the earnings and losses of those entities. Noncontrolling interests that are redeemable at the option of the holder are presented separately in the mezzanine section of the balance sheet (between liabilities and equity).

Income Taxes   Deferred income taxes are calculated using the liability method. Under this method, deferred income tax assets and liabilities are determined based on differences between financial reporting and tax bases and are measured using enacted tax rates. A valuation allowance is established to reduce total deferred tax assets to an amount that will more likely than not be realized.

AFG recognizes the tax benefits of uncertain tax positions only when the position is more likely than not to be sustained under examination by the appropriate taxing authority. Interest and penalties on AFG’s reserve for uncertain tax positions are recognized as a component of tax expense.

F-11

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

The effect of a change in tax rates on deferred tax assets and liabilities is recorded in net earnings in the period that includes the enactment date. This includes the impact on deferred tax assets or liabilities established through AOCI, which results in an amount equal to the difference between the deferred tax at the historical corporate rate and the newly enacted rate stranded in AOCI. As permitted under guidance adopted effective December 31, 2017 (ASU 2018-02), AFG reclassified the $145 million stranded in AOCI from accounting for the Tax Cuts and Jobs Act of 2017 to retained earnings at December 31, 2017. See Note L — “Income Taxes” for further information.

Stock-Based Compensation All share-based grants are recognized as compensation expense on a straight-line basis over their vesting periods based on their calculated fair value at the date of grant. AFG uses the Black-Scholes pricing model to measure the fair value of employee stock options. See Note K — “Shareholders’ Equity” for further information.

Benefit Plans   AFG provides retirement benefits to qualified employees of participating companies through the AFG 401(k) Retirement and Savings Plan, a defined contribution plan. AFG makes all contributions to the retirement fund portion of the plan and matches a percentage of employee contributions to the savings fund. Company contributions are expensed in the year for which they are declared. AFG and many of its subsidiaries provide health care and life insurance benefits to eligible retirees. AFG also provides postemployment benefits to former or inactive employees (primarily those on disability) who were not deemed retired under other company plans. The projected future cost of providing these benefits is expensed over the period employees earn such benefits.

Earnings Per Share   Although basic earnings per share only considers shares of common stock outstanding during the period, the calculation of diluted earnings per share includes the following adjustments to weighted average common shares related to stock-based compensation plans: 2018 – 1.6 million, 2017 – 2.0 million and 2016 – 1.6 million.

AFG’s weighted average diluted shares outstanding excludes the following anti-dilutive potential common shares related to stock compensation plans: 2018 and 2017 – none and 2016 – 0.4 million. Adjustments to net earnings attributable to shareholders in the calculation of diluted earnings per share were nominal in the 2018, 2017 and 2016 periods.

Statement of Cash Flows   For cash flow purposes, “investing activities” are defined as making and collecting loans and acquiring and disposing of debt or equity instruments, property and equipment and businesses. “Financing activities” include obtaining resources from owners and providing them with a return on their investments, borrowing money and repaying amounts borrowed. Annuity receipts, surrenders, benefits and withdrawals are also reflected as financing activities. All other activities are considered “operating.” Short-term investments having original maturities of three months or less when purchased are considered to be cash equivalents for purposes of the financial statements.

Revenue Recognition Guidance Effective in 2018 On January 1, 2018, AFG adopted ASU 2014-09, which provides guidance on recognizing revenue when (or as) performance obligations under the contract are satisfied. The new guidance also updates the accounting for certain costs associated with obtaining and fulfilling contracts with customers and requires certain new disclosures. Because revenue recognition for insurance contracts and financial instruments (AFG’s primary sources of revenue) were excluded from the scope of the new guidance, the adoption of ASU 2014-09 did not have a material impact on AFG’s results of operations and financial position.

Lease Accounting Guidance Effective in 2019 In February 2016, the FASB issued ASU 2016-02, which requires entities that lease assets for terms longer than one year to recognize the assets and liabilities for the rights and obligations created by those leases on the balance sheet based on the present value of contractual cash flows. Qualitative and quantitative disclosures of the amount, timing and uncertainty of cash flows arising from leases will also be required. AFG will adopt the updated guidance effective January 1, 2019. The new guidance will not have a material effect on AFG’s results of operations because it does not change the manner in which lease-related expenses are recognized in the statement of earnings. In addition, the new guidance will not have a material effect on AFG’s financial position as recognizing the assets and liabilities related to operating leases upon adoption of the new guidance in January 2019 will increase AFG’s consolidated assets and consolidated liabilities by less than one-half of 1% as compared to AFG’s Balance Sheet at December 31, 2018.

F-12

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

B.     Acquisitions and Sale of Businesses

ABA Insurance Services Inc.   In November 2018, AFG acquired ABA Insurance Services Inc. (“ABAIS”) from American Bankers Mutual Insurance, Ltd. for approximately $30 million using cash on hand at the parent company. Additional contingent consideration of up to $3 million could be due after four years based on achieving certain operating milestones. ABAIS is based in Ohio and is a market-leading provider of directors and officers liability and other complementary insurance solutions for banks, small businesses and nonprofit organizations.

The allocation of the purchase price is shown in the table below (in millions):

	November 30, 2018
Total purchase price	$	30
Tangible assets acquired	28
Liabilities acquired	26
Net tangible assets acquired, at fair value	2
Excess purchase price over net tangible assets acquired	$	28
Allocation of excess purchase price:
Intangible assets acquired (*)	$	25
Deferred tax on intangible assets acquired (*)	(5		)
Goodwill	8
	$	28

(*) Included in Other assets in AFG’s Balance Sheet.

Approximately $25 million of the purchase price was recorded as a finite lived customer relationship intangible asset, which will be amortized over its estimated life of 9 years. The fair value of this intangible was estimated using a multi-period excess earnings method, which is a form of the income approach. The acquisition resulted in the recognition of $8 million in goodwill based on the excess of the purchase price over the fair value of the net assets acquired. The goodwill represents the fair value of acquired intangible assets that do not qualify for separate recognition, including the value of ABAIS’s assembled workforce. Business generated by ABAIS is included in the Specialty casualty sub-segment.

Neon Lloyd’s Business   On December 29, 2017, AFG completed the sale of an indirect noncontrolling interest in Neon, its United Kingdom-based Lloyd’s insurer, to certain Neon executives for cash equal to the fair value of the interest sold as determined by a third-party valuation firm. Because AFG continues to have a controlling interest in Neon, the sale was accounted for as an equity transaction with the excess of the carrying value of the net assets attributable to the noncontrolling interest sold over the consideration received recorded as a $3 million reduction in AFG’s Capital Surplus. As discussed in Note L — “Income Taxes,” the sale of the noncontrolling interest also resulted in the recognition of a $56 million tax benefit, including a $48 million tax benefit previously deferred in the 2016 restructuring of the Neon Lloyd’s operations.

Acquisition of Noncontrolling Interest in National Interstate Corporation   On November 10, 2016, AFG acquired the 49% of National Interstate Corporation (“NATL”) not previously owned by AFG’s wholly-owned subsidiary, Great American Insurance Company for $315 million ($32.00 per share) in a merger transaction. In addition, NATL paid a one-time special cash dividend of $0.50 per share to its shareholders immediately prior to the merger closing ($5 million was paid to noncontrolling shareholders). Expenses related to the merger were approximately $10 million and were expensed as incurred.

Because NATL was already a consolidated subsidiary of AFG prior to the merger, the acquisition was accounted for as an equity transaction. As a result, the excess of the consideration paid over the carrying value of the noncontrolling interest acquired was recorded as a $137 million reduction in AFG’s Capital Surplus. In addition, the merger allowed NATL and its subsidiaries to become members of the AFG consolidated tax group, which resulted in a tax benefit of $66 million in the fourth quarter of 2016.

F-13

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

C.    Segments of Operations

AFG manages its business as three segments: (i) Property and casualty insurance, (ii) Annuity and (iii) Other, which includes holding company assets and costs, revenues and costs of AFG’s limited insurance operations outside of property and casualty insurance and annuities, and operations attributable to the noncontrolling interests of the managed investment entities.

AFG reports its property and casualty insurance business in the following Specialty sub-segments: (i) Property and transportation, which includes physical damage and liability coverage for buses, trucks and recreational vehicles, inland and ocean marine, agricultural-related products and other property coverages, (ii) Specialty casualty, which includes primarily excess and surplus, general liability, executive liability, professional liability, umbrella and excess liability, specialty coverage in targeted markets, customized programs for small to mid-sized businesses and workers’ compensation insurance, and (iii) Specialty financial, which includes risk management insurance programs for leasing and financing institutions (including equipment leasing and collateral and lender-placed mortgage property insurance), surety and fidelity products and trade credit insurance. Premiums and underwriting profit included under Other specialty represent business assumed by AFG’s internal reinsurance program from the operations that make up AFG’s other Specialty sub-segments and amortization of deferred gains on retroactive reinsurance transactions related to the sales of businesses in prior years. AFG’s annuity business markets traditional fixed, fixed-indexed and variable-indexed annuities in the retail, financial institutions, registered investment advisor and education markets. AFG’s reportable segments and their components were determined based primarily upon similar economic characteristics, products and services. Effective January 1, 2018, the results of AFG’s run-off long-term care and life businesses are included in the “Other” segment instead of as a separate reportable segment based on the immaterial size of the remaining operations. Prior period amounts were reclassified for consistent presentation.

Sales of property and casualty insurance outside of the United States represented 7% of AFG’s revenues in 2018, 5% of AFG’s revenues in 2017 and 4% of AFG’s revenues in 2016.

The following tables (in millions) show AFG’s assets, revenues and earnings before income taxes by segment and sub-segment.

	2018		2017		2016
Assets
Property and casualty insurance (a)	$	17,681	$	17,171	$	15,574
Annuity	39,952		37,179		33,409
Other	5,823		6,308		6,089
Total assets	$	63,456	$	60,658	$	55,072

Revenues
Property and casualty insurance:
Premiums earned:
Specialty
Property and transportation	$	1,729		$	1,711	$	1,662
Specialty casualty	2,403			2,186		2,006
Specialty financial	598			576		557
Other specialty	135			106		103
Total premiums earned	4,865			4,579		4,328
Net investment income	438			362		350
Other income (b)	10			28		51
Total property and casualty insurance	5,313			4,969		4,729
Annuity:
Net investment income	1,638			1,458		1,356
Other income	107			103		103
Total annuity	1,745			1,561		1,459
Other	358			330		289
Total revenues before realized gains (losses)	7,416			6,860		6,477
Realized gains (losses) on securities	(266		)	5		19
Realized gains on subsidiaries	—			—		2
Total revenues	$	7,150		$	6,865	$	6,498

(a) Not allocable to sub-segments.

(b) Includes income of $32 million (before noncontrolling interest) from the sale of an apartment property in 2016.

F-14

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

	2018			2017			2016
Earnings Before Income Taxes
Property and casualty insurance:
Underwriting:
Specialty
Property and transportation	$	120		$	154		$	166
Specialty casualty	141			104			78
Specialty financial	66			61			84
Other specialty	(5		)	(2		)	9
Other lines (a)	(20		)	(75		)	(101		)
Total underwriting	302			242			236
Investment and other income, net (b)	407			349			341
Total property and casualty insurance	709			591			577
Annuity	361			380			368
Other (c)	(165		)	(252		)	(179		)
Total earnings before realized gains (losses) and income taxes	905			719			766
Realized gains (losses) on securities	(266		)	5			19
Realized gains on subsidiaries	—			—			2
Total earnings before income taxes	$	639		$	724		$	787

(a) Includes special charges to increase asbestos and environmental (“A&E”) reserves of $18 million, $89 million and $36 million in 2018, 2017 and 2016, respectively. Also includes $18 million in favorable development related to the Neon exited lines recorded in connection with a reinsurance to close transaction in 2017 and a charge of $65 million related to Neon exited lines in 2016.

(b) Includes income of $32 million (before noncontrolling interest) from the sale of an apartment property in 2016.

(c) Primarily holding company interest and expenses, including losses on retirement of debt of $51 million in 2017 and special charges to increase A&E reserves related to AFG’s former railroad and manufacturing operations ($9 million in 2018, $24 million in 2017 and $5 million in 2016).

F-15

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

D.    Fair Value Measurements

Accounting standards for measuring fair value are based on inputs used in estimating fair value. The three levels of the hierarchy are as follows:

Level 1 — Quoted prices for identical assets or liabilities in active markets (markets in which transactions occur with sufficient frequency and volume to provide pricing information on an ongoing basis). AFG’s Level 1 financial instruments consist primarily of publicly traded equity securities, highly liquid government bonds for which quoted market prices in active markets are available and short-term investments of managed investment entities.

Level 2 — Quoted prices for similar instruments in active markets; quoted prices for identical or similar assets or liabilities in inactive markets (markets in which there are few transactions, the prices are not current, price quotations vary substantially over time or among market makers, or in which little information is released publicly); and valuations based on other significant inputs that are observable in active markets. AFG’s Level 2 financial instruments include separate account assets, corporate and municipal fixed maturity securities, asset-backed securities (“ABS”), mortgage-backed securities (“MBS”), non-affiliated common stocks, equity index options and investments of managed investment entities priced using observable inputs. Level 2 inputs include benchmark yields, reported trades, corroborated broker/dealer quotes, issuer spreads and benchmark securities. When non-binding broker quotes can be corroborated by comparison to similar securities priced using observable inputs, they are classified as Level 2.

Level 3 — Valuations derived from market valuation techniques generally consistent with those used to estimate the fair values of Level 2 financial instruments in which one or more significant inputs are unobservable or when the market for a security exhibits significantly less liquidity relative to markets supporting Level 2 fair value measurements. The unobservable inputs may include management’s own assumptions about the assumptions market participants would use based on the best information available at the valuation date. AFG’s Level 3 is comprised of financial instruments whose fair value is estimated based on non-binding broker quotes or internally developed using significant inputs not based on, or corroborated by, observable market information.

As discussed in Note A — “Accounting Policies — Managed Investment Entities,” AFG has set the carrying value of its CLO liabilities equal to the fair value of the CLO assets (which have more observable fair values) as an alternative to reporting those liabilities at separately measured fair values. As a result, the CLO liabilities are categorized within the fair value hierarchy on the same basis (proportionally) as the related CLO assets. Since the portion of the CLO liabilities allocated to Level 3 is derived from the fair value of the CLO assets, these amounts are excluded from the progression of Level 3 financial instruments.

AFG’s management is responsible for the valuation process and uses data from outside sources (including nationally recognized pricing services and broker/dealers) in establishing fair value. AFG’s internal investment professionals are a group of approximately 25 analysts whose primary responsibility is to manage AFG’s investment portfolio. These professionals monitor individual investments as well as overall industries and are active in the financial markets on a daily basis. The group is led by AFG’s chief investment officer, who reports directly to one of AFG’s Co-CEOs. Valuation techniques utilized by pricing services and prices obtained from external sources are reviewed by AFG’s internal investment professionals who are familiar with the securities being priced and the markets in which they trade to ensure the fair value determination is representative of an exit price. To validate the appropriateness of the prices obtained, these investment managers consider widely published indices (as benchmarks), recent trades, changes in interest rates, general economic conditions and the credit quality of the specific issuers. In addition, the Company communicates directly with the pricing services regarding the methods and assumptions used in pricing, including verifying, on a test basis, the inputs used by the service to value specific securities.

F-16

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Assets and liabilities measured and carried at fair value in the financial statements are summarized below (in millions):

	Level 1		Level 2		Level 3		Total
December 31, 2018
Assets:
Available for sale (“AFS”) fixed maturities:
U.S. Government and government agencies	$	141	$	83	$	9	$	233
States, municipalities and political subdivisions	—		6,880		59		6,939
Foreign government	—		142		—		142
Residential MBS	—		2,547		197		2,744
Commercial MBS	—		864		56		920
Asset-backed securities	—		8,964		847		9,811
Corporate and other	28		19,184		1,996		21,208
Total AFS fixed maturities	169		38,664		3,164		41,997
Trading fixed maturities	9		96		—		105
Equity securities	1,410		68		336		1,814
Equity index call options	—		184		—		184
Assets of managed investment entities (“MIE”)	203		4,476		21		4,700
Variable annuity assets (separate accounts) (*)	—		557		—		557
Other assets — derivatives	—		16		—		16
Total assets accounted for at fair value	$	1,791	$	44,061	$	3,521	$	49,373
Liabilities:
Liabilities of managed investment entities	$	195	$	4,297	$	20	$	4,512
Derivatives in annuity benefits accumulated	—		—		2,720		2,720
Other liabilities — derivatives	—		49		—		49
Total liabilities accounted for at fair value	$	195	$	4,346	$	2,740	$	7,281
December 31, 2017
Assets:
Available for sale fixed maturities:
U.S. Government and government agencies	$	122	$	112	$	8	$	242
States, municipalities and political subdivisions	—		6,975		148		7,123
Foreign government	—		127		—		127
Residential MBS	—		3,105		122		3,227
Commercial MBS	—		926		36		962
Asset-backed securities	—		7,218		744		7,962
Corporate and other	30		17,662		1,044		18,736
Total AFS fixed maturities	152		36,125		2,102		38,379
Trading fixed maturities	44		304		—		348
Equity securities	1,411		86		165		1,662
Equity index call options	—		701		—		701
Assets of managed investment entities	307		4,572		23		4,902
Variable annuity assets (separate accounts) (*)	—		644		—		644
Other assets — derivatives	—		—		—		—
Total assets accounted for at fair value	$	1,914	$	42,432	$	2,290	$	46,636
Liabilities:
Liabilities of managed investment entities	$	293	$	4,372	$	22	$	4,687
Derivatives in annuity benefits accumulated	—		—		2,542		2,542
Other liabilities — derivatives	—		35		—		35
Total liabilities accounted for at fair value	$	293	$	4,407	$	2,564	$	7,264

 (*)   Variable annuity liabilities equal the fair value of variable annuity assets.

F-17

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

The transfers between Level 1 and Level 2 for the years ended December 31, 2018, 2017 and 2016 are reflected in the table below at fair value as of the end of the reporting period (dollars in millions):

	Level 2 To Level 1 Transfers									Level 1 To Level 2 Transfers
	# of Transfers			Fair Value						# of Transfers			Fair Value
	2018	2017	2016	2018		2017		2016		2018	2017	2016	2018		2017		2016
Perpetual preferred stocks	2	4	6	$	5	$	23	$	35	2	2	7	$	6	$	11	$	28
Common stocks	—	—	3	—		—		—		—	1	2	—		—		—

Transfers between Level 1 and Level 2 for all periods presented were a result of increases or decreases in observable trade activity.

Approximately 7% of the total assets carried at fair value on December 31, 2018, were Level 3 assets. Approximately 69% ($2.41 billion) of the Level 3 assets were priced using non-binding broker quotes, for which there is a lack of transparency as to the inputs used to determine fair value. Details as to the quantitative inputs are neither provided by the brokers nor otherwise reasonably obtainable by AFG.

Internally developed Level 3 asset fair values represent approximately $1.05 billion at December 31, 2018. Of this amount, approximately $590 million relates to fixed maturity securities that were priced using management’s best estimate of an appropriate credit spread over the treasury yield (of a similar duration) to discount future expected cash flows using a third party model. The credit spread applied by management is the significant unobservable input. For this group of approximately 100 securities, the average spread used was 585 basis points over the reference treasury yield and the spreads ranged from 131 basis points to 2,966 basis points (approximately 80% of the spreads were between 400 and 700 basis points). Had management used higher spreads, the fair value of this group of securities would have been lower. Conversely, if the spreads used were lower, the fair values would have been higher. For the remainder of the internally developed prices, any justifiable changes in unobservable inputs used to determine fair value would not have resulted in a material change in AFG’s financial position.

The derivatives embedded in AFG’s fixed-indexed and variable-indexed annuity liabilities are measured using a discounted cash flow approach and had a fair value of $2.72 billion at December 31, 2018. The following table presents information about the unobservable inputs used by management in determining fair value of these Level 3 liabilities. See Note F — “Derivatives.”

Unobservable Input	Range
Adjustment for insurance subsidiary’s credit risk	0.6% – 2.1% over the risk free rate
Risk margin for uncertainty in cash flows	0.73% reduction in the discount rate
Surrenders	3% – 23% of indexed account value
Partial surrenders	2% – 9% of indexed account value
Annuitizations	0.1% – 1% of indexed account value
Deaths	1.5% – 9.5% of indexed account value
Budgeted option costs	2.6% – 3.6% of indexed account value

The range of adjustments for insurance subsidiary’s credit risk is based on the Moody’s corporate A2 bond index and reflects credit spread variations across the yield curve. The range of projected surrender rates reflects the specific surrender charges and other features of AFG’s individual fixed-indexed and variable-indexed annuity products with an expected range of 7% to 11% in the majority of future calendar years (3% to 23% over all periods). Increasing the budgeted option cost or risk margin for uncertainty in cash flow assumptions in the table above would increase the fair value of the fixed-indexed and variable-indexed annuity embedded derivatives, while increasing any of the other unobservable inputs in the table above would decrease the fair value of the embedded derivatives.

F-18

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Changes in balances of Level 3 financial assets and liabilities carried at fair value during 2018, 2017 and 2016 are presented below (in millions). The transfers into and out of Level 3 were due to changes in the availability of market observable inputs and $29 million of equity securities transferred into Level 3 in the first quarter of 2018 related to a small number of limited partnerships and similar investments carried at cost under the prior guidance that are carried at fair value through net earnings under new guidance adopted on January 1, 2018, as discussed in Note A — “Accounting Policies — Investments.” All transfers are reflected in the table at fair value as of the end of the reporting period.

				Total realized/unrealized gains (losses) included in
	Balance at December 31, 2017			Net earnings			Other comprehensive income (loss)			Purchases and issuances			Sales and settlements			Transfer into Level 3		Transfer out of Level 3			Balance at December 31, 2018
AFS fixed maturities:
U.S. government agency	$	8		$	—		$	—		$	—		$	—		$	1	$	—		$	9
State and municipal	148			—			(2		)	—			(3		)	—		(84		)	59
Residential MBS	122			(9		)	(4		)	—			(21		)	130		(21		)	197
Commercial MBS	36			—			—			20			—			—		—			56
Asset-backed securities	744			(3		)	(15		)	426			(248		)	82		(139		)	847
Corporate and other	1,044			(10		)	(18		)	1,221			(204		)	27		(64		)	1,996
Total AFS fixed maturities	2,102			(22		)	(39		)	1,667			(476		)	240		(308		)	3,164
Equity securities	165			9			—			155			(6		)	30		(17		)	336
Assets of MIE	23			(8		)	—			6			—			—		—			21
Total Level 3 assets	$	2,290		$	(21	)	$	(39	)	$	1,828		$	(482	)	$	270	$	(325	)	$	3,521
Embedded derivatives (a)	$	(2,542	)	$	204		$	—		$	(545	)	$	163		$	—	$	—		$	(2,720	)
Total Level 3 liabilities (b)	$	(2,542	)	$	204		$	—		$	(545	)	$	163		$	—	$	—		$	(2,720	)

(a) Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $44 million in 2018.

(b) As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

				Total realized/unrealized gains (losses) included in
	Balance at December 31, 2016			Net earnings			Other comprehensive income (loss)		Purchases and issuances			Sales and settlements			Transfer into Level 3		Transfer out of Level 3			Balance at December 31, 2017
AFS fixed maturities:
U.S. government agency	$	8		$	—		$	—	$	—		$	—		$	—	$	—		$	8
State and municipal	140			—			2		—			(2		)	10		(2		)	148
Residential MBS	190			(4		)	2		1			(40		)	44		(71		)	122
Commercial MBS	25			2			—		15			(10		)	4		—			36
Asset-backed securities	484			—			1		410			(132		)	202		(221		)	744
Corporate and other	712			(5		)	2		606			(237		)	29		(63		)	1,044
Total AFS fixed maturities	1,559			(7		)	7		1,032			(421		)	289		(357		)	2,102
Equity securities	174			(21		)	10		38			(16		)	—		(20		)	165
Assets of MIE	29			(11		)	—		9			—			—		(4		)	23
Total Level 3 assets	$	1,762		$	(39	)	$	17	$	1,079		$	(437	)	$	289	$	(381	)	$	2,290
Embedded derivatives (a)	$	(1,759	)	$	(589	)	$	—	$	(300	)	$	106		$	—	$	—		$	(2,542	)
Total Level 3 liabilities (b)	$	(1,759	)	$	(589	)	$	—	$	(300	)	$	106		$	—	$	—		$	(2,542	)

(a) Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $25 million in 2017.

(b) As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

F-19

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

				Total realized/unrealized gains (losses) included in
	Balance at December 31, 2015			Net earnings			Other comprehensive income (loss)			Purchases and issuances			Sales and settlements			Transfer into Level 3		Transfer out of Level 3			Balance at December 31, 2016
AFS fixed maturities:
U.S. government agency	$	15		$	(8	)	$	1		$	—		$	—		$	—	$	—		$	8
State and municipal	89			—			(4		)	57			(2		)	—		—			140
Residential MBS	224			(4		)	(2		)	8			(28		)	34		(42		)	190
Commercial MBS	39			(1		)	—			—			(7		)	—		(6		)	25
Asset-backed securities	470			(1		)	1			50			(52		)	60		(44		)	484
Corporate and other	633			—			(10		)	176			(100		)	30		(17		)	712
Total AFS fixed maturities	1,470			(14		)	(14		)	291			(189		)	124		(109		)	1,559
Equity securities	140			(12		)	35			44			(28		)	15		(20		)	174
Assets of MIE	26			(9		)	—			12			—			—		—			29
Total Level 3 assets	$	1,636		$	(35	)	$	21		$	347		$	(217	)	$	139	$	(129	)	$	1,762
Embedded derivatives (a)	$	(1,369	)	$	(211	)	$	—		$	(277	)	$	98		$	—	$	—		$	(1,759	)
Total Level 3 liabilities (b)	$	(1,369	)	$	(211	)	$	—		$	(277	)	$	98		$	—	$	—		$	(1,759	)

(a) Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $17 million in 2016.

(b) As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

Fair Value of Financial Instruments   The carrying value and fair value of financial instruments that are not carried at fair value in the financial statements at December 31 are summarized below (in millions):

	Carrying		Fair Value
	Value		Total		Level 1		Level 2		Level 3
2018
Financial assets:
Cash and cash equivalents	$	1,515	$	1,515	$	1,515	$	—	$	—
Mortgage loans	1,068		1,056		—		—		1,056
Policy loans	174		174		—		—		174
Total financial assets not accounted for at fair value	$	2,757	$	2,745	$	1,515	$	—	$	1,230
Financial liabilities:
Annuity benefits accumulated (*)	$	36,384	$	34,765	$	—	$	—	$	34,765
Long-term debt	1,302		1,231		—		1,228		3
Total financial liabilities not accounted for at fair value	$	37,686	$	35,996	$	—	$	1,228	$	34,768
2017
Financial assets:
Cash and cash equivalents	$	2,338	$	2,338	$	2,338	$	—	$	—
Mortgage loans	1,125		1,119		—		—		1,119
Policy loans	184		184		—		—		184
Total financial assets not accounted for at fair value	$	3,647	$	3,641	$	2,338	$	—	$	1,303
Financial liabilities:
Annuity benefits accumulated (*)	$	33,110	$	32,461	$	—	$	—	$	32,461
Long-term debt	1,301		1,354		—		1,351		3
Total financial liabilities not accounted for at fair value	$	34,411	$	33,815	$	—	$	1,351	$	32,464

(*) Excludes $232 million and $206 million of life contingent annuities in the payout phase at December 31, 2018 and 2017, respectively.

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AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

The carrying amount of cash and cash equivalents approximates fair value. Fair values for mortgage loans are estimated by discounting the future contractual cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings. The fair value of policy loans is estimated to approximate carrying value; policy loans have no defined maturity dates and are inseparable from insurance contracts. The fair value of annuity benefits was estimated based on expected cash flows discounted using forward interest rates adjusted for the Company’s credit risk and includes the impact of maintenance expenses and capital costs. Fair values of long-term debt are based primarily on quoted market prices.

E.    Investments

Available for sale fixed maturities at December 31 consisted of the following (in millions):

	2018												2017
	Amortized Cost		Gross Unrealized					Net Unrealized			Fair Value		Amortized Cost		Gross Unrealized					Net Unrealized			Fair Value
			Gains		Losses										Gains		Losses
Fixed maturities:
U.S. Government and government agencies	$	235	$	1	$	(3	)	$	(2	)	$	233	$	244	$	1	$	(3	)	$	(2	)	$	242
States, municipalities and political subdivisions	6,825		169		(55		)	114			6,939		6,887		254		(18		)	236			7,123
Foreign government	140		2		—			2			142		124		3		—			3			127
Residential MBS	2,476		277		(9		)	268			2,744		2,884		349		(6		)	343			3,227
Commercial MBS	905		17		(2		)	15			920		927		36		(1		)	35			962
Asset-backed securities	9,781		130		(100		)	30			9,811		7,836		142		(16		)	126			7,962
Corporate and other	21,475		167		(434		)	(267		)	21,208		18,136		638		(38		)	600			18,736
Total fixed maturities	$	41,837	$	763	$	(603	)	$	160		$	41,997	$	37,038	$	1,423	$	(82	)	$	1,341		$	38,379

The non-credit related portion of other-than-temporary impairment charges is included in other comprehensive income. Cumulative non-credit charges taken for securities still owned at December 31, 2018 and December 31, 2017, respectively, were $140 million and $158 million. Gross unrealized gains on such securities at December 31, 2018 and December 31, 2017 were $119 million and $137 million, respectively. Gross unrealized losses on such securities at both December 31, 2018 and December 31, 2017 were $4 million. These amounts represent the non-credit other-than-temporary impairment charges recorded in AOCI adjusted for subsequent changes in fair values and relate primarily to residential MBS.

As discussed in Note A — “Accounting Policies — Investments,” AFG implemented new accounting guidance effective on January 1, 2018, which requires all equity securities previously classified as “available for sale” to be reported at fair value, with holding gains and losses recognized in net earnings. Equity securities reported at fair value consisted of the following at December 31, 2018 (in millions):

					Fair Value
					over (under)
	Actual Cost		Fair Value		Cost
Common stocks	$	1,241	$	1,148	$	(93	)
Perpetual preferred stocks	705		666		(39		)
Total equity securities carried at fair value	$	1,946	$	1,814	$	(132	)

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AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

The following tables show gross unrealized losses (dollars in millions) on available for sale fixed maturities and equity securities by investment category and length of time that individual securities have been in a continuous unrealized loss position at the following balance sheet dates.

	Less Than Twelve Months							Twelve Months or More
	Unrealized Loss			Fair Value		Fair Value as % of Cost		Unrealized Loss			Fair Value		Fair Value as % of Cost
December 31, 2018
Fixed maturities:
U.S. Government and government agencies	$	—		$	41	100	%	$	(3	)	$	120	98	%
States, municipalities and political subdivisions	(23		)	1,497		98	%	(32		)	902		97	%
Foreign government	—			18		100	%	—			4		100	%
Residential MBS	(4		)	279		99	%	(5		)	139		97	%
Commercial MBS	(1		)	147		99	%	(1		)	30		97	%
Asset-backed securities	(77		)	5,406		99	%	(23		)	629		96	%
Corporate and other	(306		)	10,378		97	%	(128		)	2,078		94	%
Total fixed maturities	$	(411	)	$	17,766	98	%	$	(192	)	$	3,902	95	%
December 31, 2017
Fixed maturities:
U.S. Government and government agencies	$	—		$	55	100	%	$	(3	)	$	123	98	%
States, municipalities and political subdivisions	(8		)	825		99	%	(10		)	431		98	%
Foreign government	—			4		100	%	—			—		—	%
Residential MBS	(1		)	118		99	%	(5		)	118		96	%
Commercial MBS	(1		)	67		99	%	—			—		—	%
Asset-backed securities	(7		)	1,195		99	%	(9		)	299		97	%
Corporate and other	(20		)	2,031		99	%	(18		)	603		97	%
Total fixed maturities	$	(37	)	$	4,295	99	%	$	(45	)	$	1,574	97	%
Equity securities:
Common stocks	$	(22	)	$	117	84	%	$	—		$	—	—	%
Perpetual preferred stocks	—			41		100	%	(1		)	13		93	%
Total equity securities	$	(22	)	$	158	88	%	$	(1	)	$	13	93	%

At December 31, 2018, the gross unrealized losses on fixed maturities of $603 million relate to 2,324 securities. Investment grade securities (as determined by nationally recognized rating agencies) represented approximately 92% of the gross unrealized loss and 96% of the fair value.

The determination of whether unrealized losses are other-than-temporary requires judgment based on subjective as well as objective factors.Factors considered and resources used by management include:

a) whether the unrealized loss is credit-driven or a result of changes in market interest rates,

b) the extent to which fair value is less than cost basis,

c) cash flow projections received from independent sources,

d) historical operating, balance sheet and cash flow data contained in issuer SEC filings and news releases,

e) near-term prospects for improvement in the issuer and/or its industry,

f) third party research and communications with industry specialists,

g) financial models and forecasts,

h) the continuity of interest payments, maintenance of investment grade ratings and hybrid nature of certain investments,

i) discussions with issuer management, and

j) ability and intent to hold the investment for a period of time sufficient to allow for anticipated recovery in fair value.

AFG analyzes its MBS securities for other-than-temporary impairment each quarter based upon expected future cash flows. Management estimates expected future cash flows based upon its knowledge of the MBS market, cash flow projections (which

F-22

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

reflect loan to collateral values, subordination, vintage and geographic concentration) received from independent sources, implied cash flows inherent in security ratings and analysis of historical payment data. During 2018, 2017 and 2016, AFG recorded other-than-temporary impairment charges related to its residential MBS of $6 million, $1 million and $3 million, respectively.

In 2018, AFG recorded approximately $20 million in other-than-temporary impairment charges related to fixed maturities other than residential MBS, including $14 million related to aircraft financing. Other-than-temporary impairment charges on fixed maturities other than residential MBS were $19 million in 2017 and $35 million in 2016. In addition, AFG recorded $4 million in other-than-temporary impairment charges in 2017 on investments that are included in other investments on the balance sheet.

Management believes AFG will recover its cost basis in the securities with unrealized losses and that AFG has the ability to hold the securities until they recover in value and had no intent to sell them at December 31, 2018.

As discussed in Note A — “Accounting Policies — Investments,” effective January 1, 2018, all equity securities previously classified as “available for sale” are required to be carried at fair value through net earnings instead of accumulated other comprehensive income and therefore are no longer evaluated for other-than-temporary impairment. In 2017 and 2016, AFG recorded other-than-temporary impairment charges on equity securities classified as available for sale of $64 million and $93 million, respectively.

A progression of the credit portion of other-than-temporary impairments on fixed maturity securities for which the non-credit portion of an impairment has been recognized in other comprehensive income is shown below (in millions):

	2018			2017			2016
Balance at January 1	$	145		$	153		$	160
Additional credit impairments on:
Previously impaired securities	1			1			2
Securities without prior impairments	1			3			1
Reductions due to sales or redemptions	(5		)	(12		)	(10		)
Balance at December 31	$	142		$	145		$	153

The table below sets forth the scheduled maturities of available for sale fixed maturities as of December 31, 2018 (dollars in millions). Securities with sinking funds are reported at average maturity. Actual maturities may differ from contractual maturities because certain securities may be called or prepaid by the issuers.

	Amortized		Fair Value
	Cost		Amount		%
Maturity
One year or less	$	1,310	$	1,318	3	%
After one year through five years	8,521		8,554		20	%
After five years through ten years	14,235		14,044		34	%
After ten years	4,609		4,606		11	%
	28,675		28,522		68	%
ABS (average life of approximately 4.5 years)	9,781		9,811		23	%
MBS (average life of approximately 4.5 years)	3,381		3,664		9	%
Total	$	41,837	$	41,997	100	%

Certain risks are inherent in fixed maturity securities, including loss upon default, price volatility in reaction to changes in interest rates, and general market factors and risks associated with reinvestment of proceeds due to prepayments or redemptions in a period of declining interest rates.

There were no investments in individual issuers that exceeded 10% of shareholders’ equity at December 31, 2018 or 2017.

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AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Net Unrealized Gain on Marketable Securities In addition to adjusting fixed maturity securities and equity securities classified as “available for sale” to fair value, GAAP requires that deferred policy acquisition costs and certain other balance sheet amounts related to annuity, long-term care and life businesses be adjusted to the extent that unrealized gains and losses from securities would result in adjustments to those balances had the unrealized gains or losses actually been realized. The following table shows (in millions) the components of the net unrealized gain on securities that is included in AOCI in AFG’s Balance Sheet.

	Pretax			Deferred Tax			Net
December 31, 2018
Net unrealized gain on:
Fixed maturities — annuity segment (a)	$	101		$	(21	)	$	80
Fixed maturities — all other	59			(13		)	46
Total fixed maturities	160			(34		)	126
Deferred policy acquisition costs — annuity segment	(42		)	9			(33		)
Annuity benefits accumulated	(14		)	3			(11		)
Unearned revenue	1			—			1
Total net unrealized gain on marketable securities	$	105		$	(22	)	$	83
December 31, 2017
Net unrealized gain on:
Fixed maturities — annuity segment (a)	$	1,082		$	(227	)	$	855
Fixed maturities — all other	259			(55		)	204
Total fixed maturities	1,341			(282		)	1,059
Equity securities (b)	279			(58		)	221
Total investments	1,620			(340		)	1,280
Deferred policy acquisition costs — annuity segment	(433		)	91			(342		)
Annuity benefits accumulated	(137		)	29			(108		)
Unearned revenue	13			(3		)	10
Total net unrealized gain on marketable securities	$	1,063		$	(223	)	$	840

(a) Net unrealized gains on fixed maturity investments supporting AFG’s annuity benefits accumulated.

(b) As discussed in Note A — “Accounting Policies — Investments,” effective January 1, 2018, all equity securities other than those accounted for under the equity method are carried at fair value through net earnings.

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AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Net Investment Income   The following table shows (in millions) investment income earned and investment expenses incurred.

	2018			2017			2016
Investment income:
Fixed maturities	$	1,742		$	1,607		$	1,510
Equity securities:
Dividends	79			73			77
Change in fair value (*)	22			6			4
Equity in earnings of partnerships and similar investments	161			64			44
Other	112			102			81
Gross investment income	2,116			1,852			1,716
Investment expenses	(22		)	(21		)	(20		)
Net investment income	$	2,094		$	1,831		$	1,696

(*) As discussed in Note A — “Accounting Policies — Investments,” AFG adopted guidance in January 2018 that requires all equity securities other than those accounted for under the equity method to be reported at fair value with holding gains and losses recognized in net earnings. Although the change in the fair value of the majority of AFG’s equity securities is recorded in realized gains (losses) on securities, AFG records holding gains and losses in net investment income on equity securities classified as “trading” under the previous guidance and on a small portfolio of limited partnership and similar investments that do not qualify for the equity method of accounting.

Realized gains (losses) and changes in unrealized appreciation (depreciation) included in AOCI related to fixed maturity and equity security investments are summarized as follows (in millions):

	2018												2017
	Realized gains (losses)												Realized gains (losses)
	Before Impairments			Impairments			Total			Change in Unrealized			Before Impairments			Impairments			Total			Change in Unrealized
Fixed maturities	$	6		$	(26	)	$	(20	)	$	(1,181	)	$	17		$	(20	)	$	(3	)	$	532
Equity securities	(265		)	—			(265		)	—			70			(64		)	6			128
Mortgage loans and other investments	1			—			1			—			(6		)	(4		)	(10		)	—
Other (*)	11			7			18			502			(3		)	15			12			(219		)
Total pretax	(247		)	(19		)	(266		)	(679		)	78			(73		)	5			441
Tax effects:
Reclassify impact of U.S. corporate tax rate change	—			—			—			—			—			—			—			149
Other	52			4			56			143			(27		)	25			(2		)	(154		)
Total tax effects	52			4			56			143			(27		)	25			(2		)	(5		)
Net of tax	$	(195	)	$	(15	)	$	(210	)	$	(536	)	$	51		$	(48	)	$	3		$	436

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AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

	2016
	Realized gains (losses)
	Before Impairments			Impairments			Total			Change in Unrealized
Fixed maturities	$	36		$	(38	)	$	(2	)	$	90
Equity securities	106			(93		)	13			67
Other (*)	(7		)	15			8			(52		)
Total pretax	135			(116		)	19			105
Tax effects	(48		)	41			(7		)	(37		)
Noncontrolling interests	(2		)	3			1			4
Net of tax and noncontrolling interests	$	85		$	(72	)	$	13		$	72

(*) Primarily adjustments to deferred policy acquisition costs and reserves related to the annuity business.

As discussed in Note A — “Accounting Policies — Investments,” effective January 1, 2018, all equity securities other than those accounted for under the equity method are carried at fair value through net earnings. AFG recorded net holding gains (losses) on equity securities during 2018 on securities that were still owned at December 31, 2018 as follows (in millions):

	2018
Included in realized gains (losses)	$	(279	)
Included in net investment income	22
	$	(257	)

Gross realized gains and losses (excluding impairment write-downs and mark-to-market of derivatives) on available for sale fixed maturity investment transactions consisted of the following (in millions):

	2018			2017			2016
Fixed maturities:
Gross gains	$	22		$	43		$	55
Gross losses	(14		)	(20		)	(10		)

During 2017 and 2016, AFG recorded gross gains of $87 million and $110 million and gross losses of $17 million and $4 million, respectively, on available for sale equity securities.

F.    Derivatives

As discussed under “Derivatives” in Note A— “Accounting Policies,” AFG uses derivatives in certain areas of its operations.

Derivatives That Do Not Qualify for Hedge Accounting   The following derivatives that do not qualify for hedge accounting under GAAP are included in AFG’s Balance Sheet at fair value (in millions):

		December 31, 2018				December 31, 2017
Derivative	Balance Sheet Line	Asset		Liability		Asset		Liability
MBS with embedded derivatives	Fixed maturities	$	109	$	—	$	105	$	—
Public company warrants	Equity securities	—		—		4		—
Fixed-indexed and variable-indexed annuities (embedded derivative)	Annuity benefits accumulated	—		2,720		—		2,542
Equity index call options	Equity index call options	184		—		701		—
Equity index put options	Other liabilities	—		1		—		—
Reinsurance contract (embedded derivative)	Other liabilities	—		2		—		4
		$	293	$	2,723	$	810	$	2,546

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AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

The MBS with embedded derivatives consist of primarily interest-only and principal-only MBS. AFG records the entire change in the fair value of these securities in earnings. These investments are part of AFG’s overall investment strategy and represent a small component of AFG’s overall investment portfolio.

Warrants to purchase shares of publicly traded companies, which represent a small component of AFG’s overall investment portfolio, are considered to be derivatives that are required to be carried at fair value through earnings.

AFG’s fixed-indexed and variable-indexed annuities provide policyholders with a crediting rate tied, in part, to the performance of an existing stock market or other financial index. AFG attempts to mitigate the risk in the index-based component of these products through the purchase and sale of call and put options on the appropriate index. AFG receives collateral from certain counterparties to support its purchased call option assets (net of collateral required under put option contracts with the same counterparties). This collateral ($103 million at December 31, 2018 and $389 million at December 31, 2017) is included in other assets in AFG’s Balance Sheet with an offsetting liability to return the collateral, which is included in other liabilities. AFG’s strategy is designed so that the change in the fair value of the call and put options will generally offset the economic change in the liabilities from the index participation. Both the index-based component of the annuities and the related call and put options are considered derivatives. Fluctuations in interest rates and the stock market, among other factors, can cause volatility in the periodic measurement of fair value of the embedded derivative that management believes can be inconsistent with the long-term economics of these products.

As discussed under “Reinsurance” in Note A, AFG has a reinsurance contract that is considered to contain an embedded derivative.

The following table summarizes the gains (losses) included in AFG’s Statement of Earnings for changes in the fair value of derivatives that do not qualify for hedge accounting for 2018, 2017 and 2016 (in millions):

Derivative	Statement of Earnings Line	2018			2017			2016
MBS with embedded derivatives	Realized gains (losses) on securities	$	(7	)	$	(6	)	$	(9	)
Public company warrants	Realized gains (losses) on securities	(3		)	—			—
Fixed-indexed and variable-indexed annuities (embedded derivative) (*)	Annuity benefits	204			(589		)	(211		)
Equity index call options	Annuity benefits	(298		)	494			141
Equity index put options	Annuity benefits	(1		)	—			—
Reinsurance contracts (embedded derivative)	Net investment income	2			(2		)	(1		)
		$	(103	)	$	(103	)	$	(80	)

(*) The change in fair value of the embedded derivative includes losses related to unlocking of actuarial assumptions of $44 million in 2018, $25 million in 2017 and $17 million in 2016.

Derivatives Designated and Qualifying as Cash Flow Hedges   As of December 31, 2018, AFG has entered into sixteen interest rate swaps that are designated and qualify as highly effective cash flow hedges to mitigate interest rate risk related to certain floating-rate securities included in AFG’s portfolio of fixed maturity securities. The purpose of each of these swaps is to effectively convert a portion of AFG’s floating-rate fixed maturity securities to fixed rates by offsetting the variability in cash flows attributable to changes in short-term LIBOR.

Under the terms of the swaps, AFG receives fixed-rate interest payments in exchange for variable interest payments based on short-term LIBOR. The notional amounts of the interest rate swaps generally decline over each swap’s respective life (the swaps expire between August 2019 and June 2030) in anticipation of the expected decline in AFG’s portfolio of fixed maturity securities with floating interest rates based on short-term LIBOR. The total outstanding notional amount of AFG’s interest rate swaps increased to $2.35 billion at December 31, 2018 compared to $1.58 billion at December 31, 2017, reflecting six new swaps with an aggregate notional amount at issuance of $911 million entered into in 2018, partially offset by the scheduled amortization discussed above. The fair value of the effective portion of the interest rate swaps in an asset position and included in other assets was $16 million at December 31, 2018 and less than $1 million at December 31, 2017. The fair value of the effective portion of interest rate swaps in a liability position and included in other liabilities was $46 million at December 31, 2018 and $31 million at December 31, 2017. The net unrealized gain or loss on cash flow hedges is included in AOCI, net of DPAC and deferred taxes. Amounts reclassified from AOCI (before DPAC and taxes) to net investment income were losses of

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

$3 million in 2018 compared to income of $6 million in 2017 and $7 million in 2016. There was no ineffectiveness recorded in net earnings during these periods. A collateral receivable supporting these swaps of $135 million at December 31, 2018 and $70 million at December 31, 2017 is included in other assets in AFG’s Balance Sheet.

G.    Deferred Policy Acquisition Costs

A progression of deferred policy acquisition costs is presented below (in millions):

	P&C			Annuity and Run-off Long-term Care and Life
	Deferred			Deferred			Sales															Consolidated
	Costs			Costs			Inducements			PVFP			Subtotal			Unrealized (*)			Total			Total
Balance at December 31, 2015	$	226		$	1,018		$	119		$	55		$	1,192		$	(234	)	$	958		$	1,184
Additions	535			230			9			—			239			—			239			774
Amortization:
Periodic amortization	(520		)	(169		)	(24		)	(9		)	(202		)	—			(202		)	(722		)
Annuity unlocking	—			25			4			—			29			—			29			29
Included in realized gains	—			6			2			—			8			—			8			8
Foreign currency translation	(3		)	—			—			—			—			—			—			(3		)
Change in unrealized	—			—			—			—			—			(31		)	(31		)	(31		)
Balance at December 31, 2016	238			1,110			110			46			1,266			(265		)	1,001			1,239
Additions	588			225			4			—			229			—			229			817
Amortization:
Periodic amortization	(556		)	(161		)	(19		)	(8		)	(188		)	—			(188		)	(744		)
Annuity unlocking	—			34			6			1			41			—			41			41
Included in realized gains	—			9			1			—			10			—			10			10
Foreign currency translation	—			—			—			—			—			—			—			—
Other	—			—			—			10			10			—			10			10
Change in unrealized	—			—			—			—			—			(157		)	(157		)	(157		)
Balance at December 31, 2017	270			1,217			102			49			1,368			(422		)	946			1,216
Additions	675			263			2			—			265			—			265			940
Amortization:
Periodic amortization	(644		)	(238		)	(19		)	(7		)	(264		)	—			(264		)	(908		)
Annuity unlocking	—			29			—			—			29			—			29			29
Included in realized gains	—			14			1			—			15			—			15			15
Foreign currency translation	(2		)	—			—			—			—			—			—			(2		)
Change in unrealized	—			—			—			—			—			392			392			392
Balance at December 31, 2018	$	299		$	1,285		$	86		$	42		$	1,413		$	(30	)	$	1,383		$	1,682

(*) Adjustments to DPAC related to net unrealized gains/losses on securities and cash flow hedges.

The present value of future profits (“PVFP”) amounts in the table above are net of $148 million and $141 million of accumulated amortization at December 31, 2018 and 2017, respectively. During each of the next five years, the PVFP is expected to decrease at a rate of approximately one-eighth of the balance at the beginning of each respective year.

H.    Managed Investment Entities

AFG is the investment manager and its subsidiaries have investments ranging from 15.0% to 60.9% of the most subordinate debt tranche of fifteen collateralized loan obligation entities or “CLOs,” which are considered variable interest entities. AFG’s subsidiaries also own portions of the senior debt tranches of certain of these CLOs. Upon formation between 2004 and 2018, these entities issued securities in various senior and subordinate classes and invested the proceeds primarily in secured bank

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

loans, which serve as collateral for the debt securities issued by each particular CLO. None of the collateral was purchased from AFG. AFG’s investments in the subordinate debt tranches of these entities receive residual income from the CLOs only after the CLOs pay expenses (including management fees to AFG) and interest on and returns of capital to senior levels of debt securities. There are no contractual requirements for AFG to provide additional funding for these entities. AFG has not provided and does not intend to provide any financial support to these entities.

AFG’s maximum exposure to economic loss on its CLOs is limited to its investment in the CLOs, which had an aggregate fair value of $188 million (including $125 million invested in the most subordinate tranches) at December 31, 2018, and $215 million at December 31, 2017.

In 2018, AFG formed a new CLO, which issued $463 million face amount of liabilities (including $31 million face amount purchased by subsidiaries of AFG). During 2018, AFG subsidiaries also purchased $7 million face amount of a senior debt tranche of an existing CLO for $7 million and received $45 million in sale and redemption proceeds from its CLO investments. In 2017, AFG formed two new CLOs, which issued an aggregate of $865 million face amount of liabilities (including $48 million face amount purchased by subsidiaries of AFG). During 2017, AFG subsidiaries also purchased $71 million face amount of senior debt and subordinate tranches of existing CLOs for $71 million and received $103 million in sale and redemption proceeds from its CLO investments. In 2016, AFG formed two new CLOs, which issued an aggregate of $866 million face amount of liabilities (including $64 million face amount purchased by subsidiaries of AFG). During 2016, AFG subsidiaries also purchased $24 million face amount of senior debt and subordinate tranches of existing CLOs for $17 million and received $115 million in sale and redemption proceeds from its CLO investments. In 2018 and 2017, one and two AFG CLOs, respectively, were substantially liquidated, as permitted by the CLO indentures.

The revenues and expenses of the CLOs are separately identified in AFG’s Statement of Earnings, after the elimination of management fees and earnings attributable to shareholders of AFG as measured by the change in the fair value of AFG’s investments in the CLOs. Selected financial information related to the CLOs is shown below (in millions):

	Year ended December 31,
	2018			2017			2016
Investment in CLO tranches	$	188		$	215		$	216
Gains (losses) on change in fair value of assets/liabilities (a):
Assets	(189		)	(8		)	131
Liabilities	168			20			(116		)
Management fees paid to AFG	16			18			17
CLO earnings attributable to AFG Shareholders (b)	7			23			37

(a) Included in revenues in AFG’s Statement of Earnings.

(b) Included in earnings before income taxes in AFG’s Statement of Earnings.

The aggregate unpaid principal balance of the CLOs’ fixed maturity investments exceeded the fair value of the investments by $232 million and $55 million at December 31, 2018 and 2017. The aggregate unpaid principal balance of the CLOs’ debt exceeded its carrying value by $241 million and $118 million at those dates. The CLO assets include loans with an aggregate fair value of $1 million at December 31, 2017, for which the CLOs are not accruing interest because the loans are in default (aggregate unpaid principal balance of $8 million; none at December 31, 2018).

I.    Goodwill and Other Intangibles

Changes in the carrying value of goodwill during 2016, 2017 and 2018, by reporting segment, are presented in the following table (in millions):

	Property and Casualty		Annuity		Total
Balance at January 1, 2016, December 31, 2016 and December 31, 2017	$	168	$	31	$	199
Acquisition of subsidiary in 2018	8		—		8
Balance at December 31, 2018	$	176	$	31	$	207

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Goodwill increased by $8 million in the fourth quarter of 2018 due to the purchase of ABAIS as discussed in Note B — “Acquisitions and Sale of Businesses.”

Included in other assets in AFG’s Balance Sheet is $54 million at December 31, 2018 and $26 million at December 31, 2017 of amortizable intangible assets related to property and casualty insurance acquisitions. These amounts are net of accumulated amortization of $39 million and $30 million, respectively. The increase in amortizable intangible assets in 2018 relates to the November 2018 acquisition of ABAIS (discussed in Note B — “Acquisitions and Sale of Businesses”) and a renewal rights intangible asset established in connection with the acquisition of a small property and casualty book of business in January 2018. Amortization of intangibles was $9 million in 2018 and $8 million in both 2017 and 2016. Future amortization of intangibles (weighted average amortization period of 7 years) is estimated to be $12 million per year in 2019 and 2020, $6 million in 2021, $4 million per year in 2022 and 2023 and $16 million thereafter.

J.    Long-Term Debt

Long-term debt consisted of the following at December 31 (in millions):

	2018							2017
	Principal		Discount and Issue Costs			Carrying Value		Principal		Discount and Issue Costs			Carrying Value
Direct Senior Obligations of AFG:
4.50% Senior Notes due June 2047	$	590	$	(2	)	$	588	$	590	$	(2	)	$	588
3.50% Senior Notes due August 2026	425		(4		)	421		425		(5		)	420
Other	3		—			3		3		—			3
	1,018		(6		)	1,012		1,018		(7		)	1,011
Direct Subordinated Obligations of AFG:
6-1/4% Subordinated Debentures due September 2054	150		(5		)	145		150		(5		)	145
6% Subordinated Debentures due November 2055	150		(5		)	145		150		(5		)	145
	300		(10		)	290		300		(10		)	290
	$	1,318	$	(16	)	$	1,302	$	1,318	$	(17	)	$	1,301

AFG has no scheduled principal payments on its long-term debt in the next five years.

In June 2017, AFG issued $350 million in 4.50% Senior Notes due in 2047 at a price of 99.46%. The net proceeds of the offering were used to redeem AFG’s $230 million outstanding principal amount of 6-3/8% Senior Notes due June 2042 at par value and to redeem AFG’s $125 million outstanding principal amount of 5-3/4% Senior Notes due August 2042 at par value in June 2017 and August 2017, respectively.

In November 2017, AFG issued an additional $125 million of 3.50% Senior Notes due in 2026 at a price of 99.698% and $240 million of 4.50% Senior Notes due in 2047 at a price of 102.374%. The net proceeds of the offering were used to redeem AFG’s $350 million outstanding principal amount of 9-7/8% Senior Notes due in June 2019 for $388 million (including a make-whole premium of $38 million) in December 2017.

In August 2016, AFG issued $300 million in 3.50% Senior Notes due in 2026 at a price of 99.608%. The net proceeds of the offering were used to fund a portion of the November 2016 acquisition of the noncontrolling interest in NATL (discussed in Note B — “Acquisitions and Sale of Businesses”). At the acquisition date, the $18 million outstanding under NATL’s bank credit facility, including $6 million borrowed in September 2016, was repaid and the credit agreement was terminated.

To achieve a desired balance between fixed and variable rate debt, AFG entered into an interest rate swap in June 2015, which effectively converted its 9-7/8% Senior Notes to a floating rate of three-month LIBOR plus 8.099%. In December 2017, AFG settled the interest rate swap contemporaneously with the redemption of the 9-7/8% Senior Notes.

AFG can borrow up to $500 million under its revolving credit facility, which expires in June 2021. Amounts borrowed under this agreement bear interest at rates ranging from 1.00% to 1.875% (currently 1.375%) over LIBOR based on AFG’s credit rating. No amounts were borrowed under this facility at December 31, 2018 or December 31, 2017.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Cash interest payments on long-term debt were $59 million in 2018, $85 million in 2017 and $75 million in 2016. In 2017 and 2016, AFG received $2 million and $3 million, respectively, in interest under the interest rate swap discussed above.

K.    Shareholders’ Equity

AFG is authorized to issue 12.5 million shares of Voting Preferred Stock and 12.5 million shares of Nonvoting Preferred Stock, each without par value.

Stock Incentive Plans   Under AFG’s stock incentive plans, employees of AFG and its subsidiaries are eligible to receive equity awards in the form of stock options, stock appreciation rights, restricted stock awards, restricted stock units and stock awards. At December 31, 2018, there were 7.0 million shares of AFG Common Stock reserved for issuance under AFG’s stock incentive plans.

The restricted Common Stock that AFG has granted generally vests over a three or four year period. Data relating to grants of restricted stock is presented below:

	Shares		Average Grant Date Fair Value
Outstanding at January 1, 2018	759,035		$	73.40
Granted	200,625		$	112.86
Vested	(86,177	)	$	56.89
Forfeited	(7,553	)	$	87.47
Outstanding at December 31, 2018	865,930		$	84.06

The total fair value of restricted stock that vested during 2018, 2017 and 2016 was $10 million, $14 million and $10 million, respectively.

AFG issued 45,804 shares of Common Stock (fair value of $115.49 per share) in the first quarter of 2018 and 47,826 shares (fair value of $96.13 per share) in the first quarter of 2017 under its Equity Bonus Plan.

AFG did not grant any stock options in 2018, 2017 or 2016. Options granted in years prior to 2016 have an exercise price equal to the market price of AFG Common Stock at the date of grant. Options generally become exercisable at the rate of 20% per year commencing one year after grant and expire ten years after the date of grant.

Data for stock options issued under AFG’s stock incentive plans is presented below:

	Shares		Average Exercise Price		Average Remaining Contractual Term	Aggregate Intrinsic Value (in millions)
Outstanding at January 1, 2018	3,467,340		$	45.80
Exercised	(778,270	)	$	37.66
Forfeited/Cancelled	(21,628	)	$	42.10
Outstanding at December 31, 2018	2,667,442		$	48.20	4.2 years	$	113
Options exercisable at December 31, 2018	2,253,003		$	45.95	3.9 years	$	100

The total intrinsic value of options exercised during 2018, 2017 and 2016 was $57 million, $65 million and $38 million, respectively. During 2018, 2017 and 2016, AFG received $29 million, $34 million and $32 million, respectively, in cash from the exercise of stock options. The total tax benefit related to the exercises was $9 million, $18 million and $11 million during those years, respectively.

Total compensation expense related to stock incentive plans of AFG and its subsidiaries for 2018, 2017 and 2016 was $23 million, $30 million and $28 million, respectively. AFG’s provision for income tax includes tax benefits of $13 million in 2018, $27 million in 2017 and $19 million in 2016 related to AFG’s stock incentive plans. At December 31, 2018, there was $3 million and $35 million of unrecognized compensation expense related to nonvested stock options and restricted stock awards, respectively. The nonvested stock options and restricted stock awards amounts are expected to be recognized over a weighted average of 1.0 year and 2.5 years, respectively.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Accumulated Other Comprehensive Income, Net of Tax (“AOCI”)   Comprehensive income is defined as all changes in shareholders’ equity except those arising from transactions with shareholders. Comprehensive income includes net earnings and other comprehensive income, which consists primarily of changes in net unrealized gains or losses on available for sale securities. The progression of the components of accumulated other comprehensive income follows (in millions):

				Other Comprehensive Income (Loss)
	AOCI Beginning Balance			Pretax			Tax			Net of tax			Attributable to noncontrolling interests			Attributable to shareholders			Other (c)			AOCI Ending Balance
Year ended December 31, 2018
Net unrealized gains (losses) on securities:
Unrealized holding losses on securities arising during the period				$	(689	)	$	145		$	(544	)	$	—		$	(544	)
Reclassification adjustment for realized (gains) losses included in net earnings (a)				10			(2		)	8			—			8
Total net unrealized gains (losses) on securities (b)	$	840		(679		)	143			(536		)	—			(536		)	$	(221	)	$	83
Net unrealized gains (losses) on cash flow hedges	(13		)	2			—			2			—			2			—			(11		)
Foreign currency translation adjustments	(6		)	(9		)	(1		)	(10		)	—			(10		)	—			(16		)
Pension and other postretirement plans adjustments	(8		)	—			—			—			—			—			—			(8		)
Total	$	813		$	(686	)	$	142		$	(544	)	$	—		$	(544	)	$	(221	)	$	48
Year ended December 31, 2017
Net unrealized gains on securities:
Unrealized holding gains on securities arising during the period				$	456		$	(159	)	$	297		$	—		$	297
Reclassification adjustment for realized (gains) losses included in net earnings (a)				(15		)	5			(10		)	—			(10		)
Total net unrealized gains on securities (b)	$	404		441			(154		)	287			—			287			$	149		$	840
Net unrealized losses on cash flow hedges	(7		)	(6		)	2			(4		)	—			(4		)	(2		)	(13		)
Foreign currency translation adjustments	(15		)	9			3			12			—			12			(3		)	(6		)
Pension and other postretirement plans adjustments	(7		)	1			—			1			—			1			(2		)	(8		)
Total	$	375		$	445		$	(149	)	$	296		$	—		$	296		$	142		$	813
Year ended December 31, 2016
Net unrealized gains on securities:
Unrealized holding gains on securities arising during the period				$	124		$	(44	)	$	80		$	(4	)	$	76
Reclassification adjustment for realized (gains) losses included in net earnings (a)				(19		)	7			(12		)	(1		)	(13		)
Total net unrealized gains on securities (b)	$	332		105			(37		)	68			(5		)	63			$	9		$	404
Net unrealized gains (losses) on cash flow hedges	1			(12		)	4			(8		)	—			(8		)	—			(7		)
Foreign currency translation adjustments	(22		)	6			1			7			—			7			—			(15		)
Pension and other postretirement plans adjustments	(7		)	—			—			—			—			—			—			(7		)
Total	$	304		$	99		$	(32	)	$	67		$	(5	)	$	62		$	9		$	375

(a)    The reclassification adjustment out of net unrealized gains on securities affected the following lines in AFG’s Statement of Earnings:

OCI component	Affected line in the statement of earnings
Pretax	Realized gains (losses) on securities
Tax	Provision for income taxes
Attributable to noncontrolling interests	Net earnings attributable to noncontrolling interests

(b) Includes net unrealized gains of $58 million at December 31, 2018 compared to net unrealized gains of $68 million and $52 million at December 31, 2017 and 2016, related to securities for which only the credit portion of an other-than-temporary impairment has been recorded in earnings.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

(c) On January 1, 2018, AFG adopted new guidance that requires all equity securities other than those accounted for under the equity method to be reported at fair value with holding gains and losses recognized in net earnings. At the date of adoption, the $221 million net unrealized gain on equity securities classified as available for sale (with unrealized holding gains and losses reported in AOCI) under the prior guidance was reclassified from AOCI to retained earnings as the cumulative effect of an accounting change. Other also includes the December 2017 reclassification of $145 million stranded in AOCI from accounting for the Tax Cuts and Jobs Act of 2017 to retained earnings (see Note A — “Accounting Policies — Income Taxes”), the impact on AOCI of the December 2017 sale of redeemable noncontrolling interests in Neon and the November 2016 acquisition of the noncontrolling interest in NATL (see Note B — “Acquisitions and Sale of Businesses”).

L.    Income Taxes

The following is a reconciliation of income taxes at the statutory rate (21% in 2018 and 35% in both 2017 and 2016) to the provision for income taxes as shown in AFG’s Statement of Earnings (dollars in millions):

	2018					2017					2016
	Amount			% of EBT		Amount			% of EBT		Amount			% of EBT
Earnings before income taxes (“EBT”)	$	639				$	724				$	787
Income taxes at statutory rate	$	134		21	%	$	253		35	%	$	275		35	%
Effect of:
Tax exempt interest	(13		)	(2	%)	(23		)	(3	%)	(24		)	(3	%)
Adjustment to prior year taxes	(8		)	(1	%)	(4		)	(1	%)	(2		)	—	%
Stock-based compensation	(8		)	(1	%)	(16		)	(2	%)	(9		)	(1	%)
Dividend received deduction	(4		)	(1	%)	(8		)	(1	%)	(7		)	(1	%)
Employee stock ownership plan dividend paid deduction	(3		)	(1	%)	(5		)	(1	%)	(2		)	—	%
Foreign operations	(2		)	—	%	21			3	%	5			—	%
Change in valuation allowance (excluding change in tax rate)	11			2	%	(7		)	(1	%)	52			7	%
Nondeductible expenses	7			1	%	6			1	%	7			1	%
Neon restructuring	—			—	%	(56		)	(8	%)	(111		)	(14	%)
Change in U.S corporate tax rate	—			—	%	83			11	%	—			—	%
Acquisition of noncontrolling interest in NATL	—			—	%	—			—	%	(66		)	(8	%)
Subsidiaries not in AFG’s tax return	—			—	%	—			—	%	3			—	%
Other	8			1	%	3			1	%	(2		)	(1	%)
Provision for income taxes as shown in the statement of earnings	$	122		19	%	$	247		34	%	$	119		15	%

The favorable impact of stock-based compensation on AFG’s effective tax rate in the year ended December 31, 2017 reflects the high volume of employee stock option exercises during that period and the increase in the market price of AFG Common Stock.

In January 2008, AFG paid $75 million in cash to acquire approximately 67% of Neon Underwriting Limited (“Neon”, formerly known as Marketform Group Limited), a United Kingdom-based Lloyd’s insurer. During 2012, AFG acquired the then-remaining shares of Neon that it did not already own for $17 million. AFG’s investment in Neon includes the cost of acquiring the company as well as additional capital provided to Neon since the date of acquisition.

In 2011, cumulative losses at Neon across multiple lines of business resulted in uncertainty concerning the realization of the deferred tax benefits associated with the losses. Consequently, AFG began maintaining a full valuation allowance against the deferred tax assets related to the Lloyd’s insurance business in 2011.

Approximately $14 million of the $21 million impact of “foreign operations” for 2017 in the table above relates to a reduction in the “foreign underwriting losses” deferred tax asset as a result of the sale of the noncontrolling interest in Neon. Since AFG maintains a full valuation allowance against the deferred tax assets related to Neon, this reduction in deferred tax assets was offset by a corresponding reduction in the valuation allowance and had no overall impact on AFG’s income tax expense or results of operations.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

The changes in valuation allowance in the table above are primarily increases in the valuation allowance on tax benefits related to losses in the Neon Lloyd’s insurance business. The $61 million decrease in the valuation allowance in 2017 related to the change in the U.S. corporate tax rate is included in “Change in U.S. corporate tax rate” in table above.

In connection with the reorganization of the Neon Lloyd’s business, in December 2016, AFG undertook a restructuring that included the liquidation for tax purposes of the foreign subsidiary that is the parent of the Neon Lloyd’s operations, resulting in a taxable loss for U.S. tax purposes. AFG reported a $111 million tax benefit associated with this loss in the fourth quarter of 2016. Approximately $29 million of the $111 million tax benefit recorded in 2016 reduced current taxes payable for 2016, while the remaining tax benefit was received in 2017 from the carry-back of the tax-basis capital loss to offset capital gains in prior years. An additional loss associated with the 2016 restructuring was deferred under U.S. tax laws, resulting in an unrecognized potential tax benefit of $48 million at December 31, 2016. The sale of the noncontrolling interest in Neon resulted in the recognition of an additional tax benefit of $56 million in the fourth quarter of 2017, including the recognition of the deferred loss from the 2016 restructuring. Approximately $20 million of the $56 million tax benefit recorded in 2017 reduced current taxes payable for 2017. The majority of the remaining 2017 tax benefit is expected to be received in 2019 as a result of the filing of a refund claim in 2018 to carry back tax basis capital losses to offset prior year tax basis capital gains.

The Tax Cuts and Jobs Act of 2017 (“TCJA”), which was enacted on December 22, 2017, lowered the U.S corporate tax rate to 21% and made other widespread changes to the U.S. tax code effective in 2018. Because the TCJA was enacted in December 2017, AFG recorded the $83 million decrease in its net deferred tax asset resulting from the changes in the tax code (primarily the lower corporate tax rate applicable to 2018 and future years) in the fourth quarter of 2017.

In addition to the lower U.S. corporate tax rate, the TCJA implemented a new global minimum tax on income earned by foreign subsidiaries of U.S.-based entities known as the Global Intangible Low-taxed Income (“GILTI”) provision. Since almost all of AFG’s earnings are taxable based on U.S. tax rates, the GILTI is not expected to be material to AFG’s results of operations and will be recorded in the period that any tax arises.

At the time it was enacted, the TCJA was subject to further clarification and interpretation by the U.S. Treasury Department and the Internal Revenue Service. For example, the TCJA changed the way that companies calculate their insurance claims and reserves for tax purposes, including revaluing those tax basis liabilities as of January 1, 2018, based on a methodology and discount factors that had not been published. The resulting transitional deferred tax liability (taxes payable over eight years under the TCJA) and offsetting increase in AFG’s insurance claims and reserves deferred tax assets, were recorded at December 31, 2017 using reasonable estimates based on available information and were considered provisional in accordance with Securities and Exchange Commission Staff Accounting Bulletin No. 118 (“SAB 118”). Because the established transition liability was completely offset by an increase in related deferred tax assets, the adjustment to the final amount when the factors were published in 2018 did not impact AFG’s effective tax rate. In accordance with SAB 118, the insurance claims and reserves transitional deferred tax liability (and offsetting adjustment to the related deferred tax assets) and all other changes in deferred taxes resulting from clarification and interpretation of the TCJA were recorded in 2018 in the period in which the guidance was published and did not have a material impact on AFG’s effective tax rate. As a result, AFG’s implementation of the TCJA is complete as of December 31, 2018.

As discussed in Note B — “Acquisitions and Sale of Businesses,” AFG acquired the noncontrolling interest in NATL in November 2016. This transaction allowed NATL and its subsidiaries to become members of the AFG consolidated tax group, which resulted in a tax benefit of $66 million to AFG during the fourth quarter of 2016.

Excluding the tax benefit related to the Neon restructuring and the impact of the change in the U.S. corporate tax rate, AFG’s effective tax rate for the year ended December 31, 2017 was 31%. Excluding a $65 million charge related to the exit of certain lines of business within Neon and the tax benefits related to the acquisition of the noncontrolling interest in NATL and the Neon restructuring, AFG’s effective tax rate for the year ended December 31, 2016 was 35%.

AFG’s 2012 — 2018 tax years remain subject to examination by the IRS.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Total earnings before income taxes include losses subject to tax in foreign jurisdictions of $69 million in 2018, $58 million in 2017 and $160 million in 2016, primarily related to the Neon Lloyd’s operations.

The total income tax provision (credit) consists of (in millions):

	2018			2017		2016
Current taxes:
Federal	$	196		$	153	$	299
State	8			6		12
Deferred taxes:
Federal	(82		)	5		(192		)
Impact of change in U.S. corporate tax rate	—			83		—
Total Federal deferred taxes	(82		)	88		(192		)
Provision for income taxes	$	122		$	247	$	119

For income tax purposes, AFG and its subsidiaries had the following carryforwards available at December 31, 2018 (in millions):

	Expiring	Amount
Operating Loss – U.S.	2019 - 2022	$	112
Operating Loss – United Kingdom	indefinite	215		(*)

(*) £168 million

Deferred income tax assets and liabilities reflect temporary differences between the carrying amounts of assets and liabilities recognized for financial reporting purposes and the amounts recognized for tax purposes. The significant components of deferred tax assets and liabilities included in AFG’s Balance Sheet at December 31 were as follows (in millions):

	2018									2017
	Excluding Unrealized Gains			Impact of Unrealized Gains			Total			Excluding Unrealized Gains			Impact of Unrealized Gains			Total
Deferred tax assets:
Federal net operating loss carryforwards	$	23		$	—		$	23		$	27		$	—		$	27
Foreign underwriting losses	93			—			93			80			—			80
Capital loss carryforwards	—			—			—			32			—			32
Insurance claims and reserves	740			3			743			665			29			694
Employee benefits	88			—			88			84			—			84
Other, net	44			—			44			48			(3		)	45
Total deferred tax assets before valuation allowance	988			3			991			936			26			962
Valuation allowance against deferred tax assets	(119		)	—			(119		)	(109		)	—			(109		)
Total deferred tax assets	869			3			872			827			26			853
Deferred tax liabilities:
Investment securities	(36		)	(34		)	(70		)	(1		)	(340		)	(341		)
Deferred policy acquisition costs	(300		)	9			(291		)	(293		)	91			(202		)
Insurance claims and reserves transition liability	(110		)	—			(110		)	(128		)	—			(128		)
Real estate, property and equipment	(36		)	—			(36		)	(35		)	—			(35		)
Total deferred tax liabilities	(482		)	(25		)	(507		)	(457		)	(249		)	(706		)
Net deferred tax asset (liability)	$	387		$	(22	)	$	365		$	370		$	(223	)	$	147

AFG’s net deferred tax asset at December 31, 2018 and 2017 is included in other assets in AFG’s Balance Sheet. The increase in AFG’s net deferred tax asset at December 31, 2018 compared to December 31, 2017 reflects significantly lower pretax unrealized gains on securities.

The likelihood of realizing deferred tax assets is reviewed periodically; any adjustments required to the valuation allowance are made in the period during which developments requiring an adjustment become known.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

“Foreign underwriting losses” in the table above include the net operating loss carryforward and other deferred tax assets related to the Neon Lloyd’s insurance business. Due to uncertainty concerning the realization of the deferred tax benefits associated with these losses, AFG maintains a full valuation allowance of $93 million against these deferred tax assets at December 31, 2018. In addition to the valuation allowance related to the Neon Lloyd’s insurance business, the gross deferred tax asset has also been reduced by a $23 million valuation allowance related to AFG’s net operating loss carryforwards (“NOL”) subject to the separate return limitation year (“SRLY”) tax rules. A SRLY NOL can be used only by the entity that created it and only in years that both it and the consolidated group have taxable income. Approximately $19 million of AFG’s SRLY NOLs expired unutilized at December 31, 2018. Since AFG maintains a full valuation allowance against its SRLY NOLs, the expiration of these loss carryforwards was offset by corresponding reduction in the valuation allowance and had no overall impact on AFG’s income tax expense or results of operations.

AFG increased its liability for uncertain tax positions by $1 million in 2015 due to uncertainty in state taxation of its surplus lines insurance subsidiaries. In 2017, this uncertainty was resolved, resulting in total tax payments of less than $1 million.

A progression of the liability for uncertain tax positions, excluding interest and penalties, follows (in millions):

	2018		2017			2016
Balance at January 1	$	—	$	1		$	1
Additions for tax positions of prior years	—		—			—
Reductions for tax positions of prior years	—		—			—
Additions for tax positions of current year	—		—			—
Settlements	—		(1		)	—
Balance at December 31	$	—	$	—		$	1

The total unrecognized tax benefits and related interest and penalties that, if recognized, would impact the effective tax rate is less than $1 million at December 31, 2018 and December 31, 2017. AFG’s provision for income taxes in 2018, 2017 and 2016 included interest expense related to unrecognized tax benefits of less than $1 million in each year (net of federal benefit or expense). There was no liability for interest related to unrecognized tax benefits at December 31, 2018. AFG’s liability for interest related to unrecognized tax benefits was less than $1 million at December 31, 2017 (net of federal benefit). AFG’s provision for income taxes in 2018, 2017 and 2016 included penalties of less than $1 million in each year. AFG’s liability for penalties related to unrecognized tax benefits was less than $1 million at December 31, 2018 and December 31, 2017.

Cash payments for income taxes, net of refunds, were $156 million, $194 million and $308 million for 2018, 2017 and 2016, respectively.

M.     Contingencies

Establishing property and casualty insurance reserves for claims related to environmental exposures, asbestos and other mass tort claims is subject to uncertainties that are significantly greater than those presented by other types of claims. For this group of claims, traditional actuarial techniques that rely on historical loss development trends cannot be used and a range of reasonably possible losses cannot be estimated. In addition, accruals (included in other liabilities) have been recorded for various environmental and occupational injury and disease claims and other contingencies arising out of the railroad operations disposed of by American Premier’s predecessor, Penn Central Transportation Company (“PCTC”) and its subsidiaries, prior to its bankruptcy reorganization in 1978 and certain manufacturing operations disposed of by American Premier and Great American Financial Resources, Inc. (“GAFRI”).

AFG completed an in-depth internal review of its asbestos and environmental (“A&E”) exposures in the third quarter of 2018. The review resulted in special A&E charges of $18 million for the property and casualty group and $9 million for the former railroad and manufacturing operations. AFG completed a comprehensive external study of its A&E exposures in the third quarter of 2017 with the aid of specialty actuarial, engineering and consulting firms and outside counsel. The study resulted in special A&E charges of $89 million for the property and casualty group and $24 million for the former railroad and manufacturing operations. AFG completed an in-depth internal review of its A&E exposures in the third quarter of 2016. The review resulted in special A&E charges of $36 million for the property and casualty group and $5 million for the former railroad and manufacturing operations.

The property and casualty group’s liability for A&E reserves was $524 million at December 31, 2018; related recoverables from reinsurers (net of allowances for doubtful accounts) at that date were $129 million.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

At December 31, 2018, American Premier and its subsidiaries had liabilities for environmental and personal injury claims and other contingencies aggregating $83 million. The environmental claims consist of a number of proceedings and claims seeking to impose responsibility for hazardous waste remediation costs related to certain sites formerly owned or operated by the railroad and manufacturing operations. Remediation costs are difficult to estimate for a number of reasons, including the number and financial resources of other potentially responsible parties, the range of costs for remediation alternatives, changing technology and the time period over which these matters develop. The personal injury claims and other contingencies include pending and expected claims, primarily by former employees of PCTC, for injury or disease allegedly caused by exposure to excessive noise, asbestos or other substances in the workplace and other labor disputes.

At December 31, 2018, GAFRI had a liability of $8 million for environmental costs and certain other matters associated with the sales of its former manufacturing operations.

In December 2015, AFG completed the sale of substantially all of its run-off long-term care insurance business to HC2 Holdings, Inc. (“HC2”). In connection with obtaining regulatory approval for the transaction, AFG agreed to provide up to an aggregate of $35 million of capital support for the insurance companies, on an as-needed basis to maintain specified surplus levels, subject to immediate reimbursement by HC2 through a five-year capital maintenance agreement expiring in 2020.

While management believes AFG has recorded adequate reserves for the items discussed above, the outcome is uncertain and could result in liabilities that may vary from amounts AFG has currently recorded. Such amounts could have a material effect on AFG’s future results of operations and financial condition.

In addition, AFG and its subsidiaries are involved in litigation from time to time, generally arising in the ordinary course of business. This litigation may include, but is not limited to, general commercial disputes, lawsuits brought by policyholders, employment matters, reinsurance collection matters and actions challenging certain business practices of insurance subsidiaries. None of these matters are expected to have a material adverse impact on AFG’s results of operations or financial condition.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

N.     Quarterly Operating Results (Unaudited)

The operations of certain AFG business segments are seasonal in nature. While insurance premiums are recognized on a relatively level basis, claim losses related to adverse weather (snow, hail, hurricanes, severe storms, tornadoes, etc.) may be seasonal. The profitability of AFG’s crop insurance business is primarily recognized during the second half of the year as crop prices and yields are determined. Quarterly results necessarily rely heavily on estimates. These estimates and certain other factors, such as the discretionary sales of assets, cause the quarterly results not to be necessarily indicative of results for longer periods of time.

The following are quarterly results of consolidated operations for the two years ended December 31, 2018 (in millions, except per share amounts). Quarterly earnings per share do not add to year-to-date amounts due to changes in shares outstanding.

	1st Quarter		2nd Quarter		3rd Quarter		4th Quarter			Total Year
2018
Revenues	$	1,619	$	1,833	$	2,008	$	1,690		$	7,150
Net earnings (losses), including noncontrolling interests	141		208		203		(35		)	517
Net earnings (losses) attributable to shareholders	145		210		204		(29		)	530
Earnings (losses) attributable to shareholders per Common Share:
Basic	$	1.64	$	2.36	$	2.30	$	(0.33	)	$	5.95
Diluted	1.60		2.31		2.26		(0.33		)	5.85
Average number of Common Shares:
Basic	88.6		89.0		89.1		89.3			89.0
Diluted	90.4		90.7		90.7		89.3			90.6
2017
Revenues	$	1,576	$	1,646	$	1,835	$	1,808		$	6,865
Net earnings, including noncontrolling interests	155		145		11		166			477
Net earnings attributable to shareholders	153		145		11		166			475
Earnings attributable to shareholders per Common Share:
Basic	$	1.76	$	1.64	$	0.13	$	1.88		$	5.40
Diluted	1.72		1.61		0.13		1.84			5.28
Average number of Common Shares:
Basic	87.2		87.8		88.1		88.2			87.8
Diluted	89.3		89.8		90.0		90.1			89.8

Pretax realized gains on subsidiaries and securities (including other-than-temporary impairments), favorable (adverse) prior year development of AFG’s liability for losses and loss adjustment expenses (“LAE”) and the impact of derivatives related to fixed-indexed and variable-indexed annuities (“FIAs”) were as follows (in millions):

	1st Quarter			2nd Quarter			3rd Quarter			4th Quarter			Total Year
Realized Gains (Losses) on Securities and Subsidiaries
2018 – change in fair value of equity securities	$	(95	)	$	23		$	33		$	(223	)	$	(262	)
2018 – other realized gains (losses)	2			8			1			(15		)	(4		)
2017	3			8			(12		)	6			5
Prior Year Development Favorable (Adverse)
2018	$	56		$	44		$	31		$	61		$	192
2017	28			22			(52		)	66			64
Impact of Derivatives related to FIAs Favorable (Adverse)
2018	$	13		$	3		$	(2	)	$	(47	)	$	(33	)
2017	(2		)	(16		)	(4		)	(11		)	(33		)

As discussed in Note A — “Accounting Policies — Investments” and Note E — “Investments,” effective January 1, 2018, all equity securities other than those accounted for under the equity method are carried at fair value through net earnings. Realized gains (losses) on securities for the fourth quarter and full-year 2018 includes net holding losses on equity securities that were

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

still owned at December 31, 2018 of $228 million and $279 million, respectively. Under the prior guidance, these holding losses would have been recorded in AOCI (with the exception of any impairment charge that may have been recorded).

Prior year development in the third quarters of 2018 and 2017 includes pretax special charges of $18 million and $89 million, respectively, to strengthen property and casualty insurance A&E reserves. As a result of the Neon reinsurance to close agreement discussed in Note O — “Insurance,” Neon recorded $42 million in favorable development in the fourth quarter of 2017, of which $24 million related to its ongoing lines of business and $18 million related to its exited lines of business.

FIAs provide policyholders with a crediting rate tied, in part, to the performance of an existing stock market or other financial index. AFG attempts to mitigate the risk in the index-based component of these products through the purchase and sale of call and put options on the appropriate index. AFG’s strategy is designed so that the change in the fair value of the call and put options will generally offset the economic change in the liabilities from the index participation. Both the index-based component of the annuities and the related call and put options are considered derivatives that must be marked-to-market through earnings each period. Fluctuations in interest rates and the stock market, among other factors, can cause volatility in the periodic measurement of fair value of the embedded derivative that management believes can be inconsistent with the long-term economics of these products. In the table above, the impact of changes in the fair value of the derivatives related to FIAs is presented net of an estimate of the related acceleration/deceleration of the amortization of deferred policy acquisition costs and deferred sales inducements.

The vast majority of AFG’s FIAs are indexed to the S&P 500, which decreased 14% in the fourth quarter of 2018. This poor stock market performance adversely impacted AFG’s earnings before income taxes from its annuity operations for the fourth quarter of 2018 beyond the impact on derivatives related to FIAs by $30 million, particularly related to FIAs with guaranteed withdrawal benefits.

AFG recorded net charges as a result of updating (unlocking) actuarial assumptions underlying its annuity operations of $27 million in the second quarter of 2018, $4 million in the fourth quarter of 2018 and $3 million in the fourth quarter of 2017.

AFG’s property and casualty operations recorded catastrophe losses totaling $103 million in 2018 (primarily from Hurricanes Florence and Michael and wildfires in California). Catastrophe losses for 2017 totaled $140 million, including $107 million in the third quarter (primarily from Hurricanes Harvey, Irma and Maria and earthquakes in Mexico).

Results include pretax gains (included in other income) of $13 million from the sale of a hotel in the first quarter of 2017.

Results for the third quarter of 2018 and 2017 include pretax special charges of $9 million and $24 million, respectively, to strengthen reserves for A&E exposures related to AFG’s former railroad and manufacturing operations.

In 2017, AFG recorded pretax losses on the retirement of debt of $7 million in the second quarter, $4 million in the third quarter and $40 million in the fourth quarter.

Net earnings in the fourth quarter of 2017 includes $56 million in tax benefits related to the Neon restructuring. See Note L— “Income Taxes.”

O.     Insurance

Cash and securities owned by U.S.-based insurance subsidiaries, having a carrying value of approximately $1.06 billion at December 31, 2018, were on deposit as required by regulatory authorities. In addition, $118 million was on deposit in support of AFG’s underwriting activities at Lloyd’s. At December 31, 2018, AFG and its subsidiaries had $296 million in undrawn letters of credit (none of which was collateralized) supporting the underwriting capacity of its U.K.-based Lloyd’s insurer, Neon.

Property and Casualty Insurance Reserves Estimating the liability for unpaid losses and loss adjustment expenses (“LAE”) is inherently judgmental and is influenced by factors that are subject to significant variation. Determining the liability is a complex process incorporating input from many areas of the Company including actuarial, underwriting, pricing, claims and operations management.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

The process used to determine the total reserve for liabilities involves estimating the ultimate incurred losses and LAE, adjusted for amounts already paid on the claims. The IBNR reserve is derived by first estimating the ultimate unpaid reserve liability and subtracting case reserves for loss and LAE.

In determining management’s best estimate of the ultimate liability, management (with the assistance of Company actuaries) considers items such as the effect of inflation on medical, hospitalization, material, repair and replacement costs, the nature and maturity of lines of insurance, general economic trends and the legal environment. In addition, historical trends adjusted for changes in underwriting standards, policy provisions, product mix and other factors are analyzed using actuarial reserve development techniques. Weighing all of the factors, the management team determines a single or “point” estimate that it records as its best estimate of the ultimate liability. Ranges of loss reserves are not developed by Company actuaries. This reserve analysis and review is completed each quarter and for almost every business within AFG’s property and casualty insurance sub-segments.

Each review includes in-depth analysis of several hundred subdivisions of the business, employing multiple actuarial techniques. For each subdivision, actuaries use informed, professional judgment to adjust these techniques as necessary to respond to specific conditions in the data or within the business.

Some of the standard actuarial methods employed for the quarterly reserve analysis may include (but may not be limited to):

• Case Incurred Development Method

• Paid Development Method

• Bornhuetter-Ferguson Method

• Incremental Paid LAE to Paid Loss Methods

Management believes that each method has particular strengths and weaknesses and that no single estimation method is most accurate in all situations. When applied to a particular group of claims, the relative strengths and weaknesses of each method can change over time based on the facts and circumstances. Ultimately, the estimation methods chosen are those which management believes produce the most reliable indication for the particular liabilities under review.

The period of time from the occurrence of a loss through the settlement of the liability is referred to as the “tail”. Generally, the same actuarial methods are considered for both short-tail and long-tail lines of business because most of them work properly for both. The methods are designed to incorporate the effects of the differing length of time to settle particular claims. For short-tail lines, management tends to give more weight to the Case Incurred and Paid Development methods, although the various methods tend to produce similar results. For long-tail lines, more judgment is involved, and more weight may be given to the Bornhuetter-Ferguson method. Liability claims for long-tail lines are more susceptible to litigation and can be significantly affected by changing contract interpretation and the legal environment. Therefore, the estimation of loss reserves for these classes is more complex and subject to a higher degree of variability.

The level of detail in which data is analyzed varies among the different lines of business. Data is generally analyzed by major product or by coverage within product, using countrywide data; however, in some situations, data may be reviewed by state or region. Appropriate segmentation of the data is determined based on data credibility, homogeneity of development patterns, mix of business, and other actuarial considerations.

Supplementary statistical information is also reviewed to determine which methods are most appropriate to use or if adjustments are needed to particular methods. Such information includes:

• Open and closed claim counts

• Average case reserves and average incurred on open claims

• Closure rates and statistics related to closed and open claim percentages

• Average closed claim severity

• Ultimate claim severity

• Reported loss ratios

• Projected ultimate loss ratios

• Loss payment patterns

Within each business, results of individual methods are reviewed, supplementary statistical information is analyzed, and data from underwriting, operating and claim management are considered in deriving management’s best estimate of the ultimate liability. This estimate may be the result of one method, a weighted average of several methods, or a judgmental selection as the management team determines is appropriate.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

The liability for losses and LAE for a very limited number of claims with long-term scheduled payments under certain workers’ compensation policies has been discounted at 4.5% at both December 31, 2018 and 2017, which represents an approximation of long-term investment yields. Because of the limited amount of claims involved, the net impact of discounting did not materially impact AFG’s total liability for unpaid losses and loss adjustment expenses (net reductions from discounting of $13 million and $15 million at December 31, 2018 and 2017, respectively).

The following table provides an analysis of changes in the liability for losses and loss adjustment expenses over the past three years (in millions):

	2018			2017			2016
Balance at beginning of period	$	9,678		$	8,563		$	8,127
Less reinsurance recoverables, net of allowance	2,957			2,302			2,201
Net liability at beginning of period	6,721			6,261			5,926
Provision for losses and LAE occurring in the current year	3,195			3,019			2,730
Net increase (decrease) in the provision for claims of prior years:
Special A&E charges	18			89			36
Neon exited lines charge	—			(18		)	57
Other	(210		)	(135		)	(61		)
Total losses and LAE incurred	3,003			2,955			2,762
Payments for losses and LAE of:
Current year	(963		)	(942		)	(841		)
Prior years	(1,639		)	(1,586		)	(1,512		)
Total payments	(2,602		)	(2,528		)	(2,353		)
Reserves of businesses disposed (*)	(319		)	—			(40		)
Foreign currency translation and other	(4		)	33			(34		)
Net liability at end of period	6,799			6,721			6,261
Add back reinsurance recoverables, net of allowance	2,942			2,957			2,302
Gross unpaid losses and LAE included in the balance sheet	$	9,741		$	9,678		$	8,563

(*) Reflects the reinsurance to close transactions at Neon (discussed below).

The net decrease in the provision for claims of prior years in 2018 reflects (i) lower than expected losses in the crop business and lower than expected claim severity at National Interstate (within the Property and transportation sub-segment), (ii) lower than anticipated claim severity in the workers’ compensation businesses, lower than expected emergence in assumed 2017 property catastrophe losses at Neon and lower than expected claim severity in the executive liability business (within the Specialty casualty sub-segment) and (iii) lower than expected claim frequency and severity in the surety business, lower than expected claim severity in the fidelity business and lower than expected claim frequency in run-off businesses (within the Specialty financial sub-segment). This favorable development was partially offset by (i) the $18 million special charge to increase asbestos and environmental reserves and (ii) higher than expected claim frequency and severity in the Singapore branch and aviation operations (within the Property and transportation sub-segment).

The net decrease in the provision for claims of prior years in 2017 reflects (i) lower than expected losses in the crop and equine businesses and lower than expected claim severity in the property and inland marine and transportation businesses (all within the Property and transportation sub-segment), (ii) favorable reserve development of $18 million on Neon’s exited lines, as well as additional favorable development on ongoing lines of business within Neon, recorded in connection with the reinsurance to close agreement entered into in December 2017 for the 2015 and prior years of account, lower than anticipated claim severity in the workers’ compensation businesses and lower than expected losses in the executive liability business (all within the Specialty casualty sub-segment) and (iii) lower than anticipated claim severity in the fidelity business and lower than expected claim frequency and severity in the surety business (both within the Specialty financial sub-segment). This favorable development was partially offset by (i) the $89 million special charge to increase asbestos and environmental reserves, (ii) higher than expected claim frequency and severity in the ocean marine business (within the Property and transportation sub-segment), (iii) higher than anticipated claim severity in the targeted markets and general liability businesses and higher than anticipated severity in New York contractor claims (all within the Specialty casualty sub-segment) and (iv) a charge to adjust to the deferred gain on the retroactive reinsurance transaction entered into in connection with the sale of businesses in 1998 (included in Other specialty sub-segment).

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

The net increase in the provision for claims of prior years in 2016 reflects (i) the $36 million special charge to increase asbestos and environmental reserves, (ii) reserve strengthening at National Interstate and higher than expected claim frequency in the ocean marine business (within the Property and transportation sub-segment), (iii) adverse reserve development at Neon, higher than anticipated severity in New York contractor claims, higher than anticipated claim frequency and severity in general liability insurance and higher than expected claim frequency and severity in the targeted markets business (within the Specialty casualty sub-segment) and (iv) the $57 million special charge to increase loss reserves related to Neon’s exit of its UK and international medical malpractice and general liability lines of business. This adverse development was partially offset by (i) lower than expected losses in the crop business and lower than expected claim severity in the property and inland marine and trucking businesses (all within the Property and transportation sub-segment), (ii) lower than anticipated claim frequency and severity in workers’ compensation business, lower than expected claim severity in directors and officers liability insurance and lower than expected claim frequency and severity in excess liability business (all within the Specialty casualty sub-segment) and (iii) lower than anticipated claim severity in the fidelity and crime business, lower than expected claim frequency and severity in the surety business and lower than anticipated claim frequency in the financial institutions business (within the Specialty financial sub-segment).

In December 2017, the Neon Lloyd’s syndicate entered into a reinsurance to close transaction for the 2015 and prior years of account with StarStone Underwriting Limited, a subsidiary of Enstar Group Limited, which was effective as of December 31, 2017 and settled in early 2018. In the Lloyd’s market, a reinsurance to close transaction transfers the responsibility for discharging all of the liabilities that attach to the transferred year of account plus the right to any income due to the closing year of account in return for a premium. This transaction provides Neon with finality on its legacy business. As a result of the reinsurance to close agreement, Neon was able to better estimate its ultimate liability for the 2015 and prior years of account as of December 31, 2017, resulting in favorable development of $42 million, of which $24 million related to its ongoing lines of business (included in Specialty casualty) and $18 million related to its exited lines of business (discussed below and included in Neon exited lines charge). In November 2016, the Neon Lloyd’s syndicate completed a similar reinsurance to close transaction with StarStone, which covered liabilities relating to the syndicate’s 2007 and prior years of account. That transaction also included a quota share of the Italian public hospital business written in Neon’s 2008 year of account and represented Neon’s complete exit from the Italian public hospital medical malpractice business.

A reconciliation of incurred and paid claims development information to the aggregate carrying amount of the liability for unpaid losses and LAE, with separate disclosure of reinsurance recoverables on unpaid claims is shown below (in millions):

	2018
Unpaid losses and allocated LAE, net of reinsurance:
Specialty
Property and transportation	$	1,117
Specialty casualty	3,884
Specialty financial	225
Other specialty	280
Total Specialty (excluding foreign reserves)	5,506
Other reserves
Reserves for foreign operations:
Neon Lloyd’s business	265
Other subsidiaries	268
A&E reserves	395
Unallocated LAE	335
Other	30
Total other reserves	1,293
Total reserves, net of reinsurance	6,799
Add back reinsurance recoverables, net of allowance	2,942
Gross unpaid losses and LAE included in the balance sheet	$	9,741

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

The following claims development tables and associated disclosures related to short-duration insurance contracts are prepared by sub-segment within the property and casualty insurance business for the most recent 10 accident years. AFG determines its claim counts at the claimant or policy feature level depending on the particular facts and circumstances of the underlying claim. While the methodology is generally consistent within each sub-segment, there are minor differences between and within the sub-segments. The methods used to summarize claim counts have not changed significantly over the time periods reported in the tables below.

Property and transportation
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	503	$	487	$	505	$	498	$	494	$	494	$	491	$	491	$	491	$	490	$	2	138,248
2010			680		640		646		654		656		657		661		659		657		3		138,235
2011					816		803		819		833		844		856		853		850		6		139,345
2012							875		866		880		892		905		900		897		13		145,636
2013									894		881		884		890		890		890		18		141,293
2014											856		842		831		834		831		25		136,259
2015													831		794		789		789		36		134,484
2016															762		730		733		74		122,623
2017																	904		868		128		140,963
2018																			952		277		119,817
																	Total		$	7,957

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (a)
2009	$	219	$	333	$	397	$	440	$	462	$	476	$	480	$	481	$	484	$	485	99.0	%
2010			316		487		536		597		627		638		643		648		650		98.9	%
2011					367		670		732		777		810		828		836		839		98.7	%
2012							574		715		780		826		852		866		892		99.4	%
2013									440		710		769		814		843		859		96.5	%
2014											332		638		702		756		784		94.3	%
2015													361		587		675		717		90.9	%
2016															296		528		590		80.5	%
2017																	383		648		74.7	%
2018																			399		41.9	%
																	Total		$	6,863
									Unpaid losses and LAE — years 2009 through 2018										1,094
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																23
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	1,117

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	46.2	%	28.7	%	8.6	%	6.5	%	3.7	%	2.0	%	1.4	%	0.4	%	0.5	%	0.2	%
Cumulative	46.2	%	74.9	%	83.5	%	90.0	%	93.7	%	95.7	%	97.1	%	97.5	%	98.0	%	98.2	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Specialty casualty
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	888	$	887	$	864	$	844	$	833	$	828	$	829	$	824	$	820	$	811	$	34	56,985
2010			870		886		887		865		879		868		867		864		853		47		56,411
2011					847		845		833		842		827		822		819		811		52		53,385
2012							890		883		876		876		872		867		838		64		51,885
2013									956		938		933		928		933		913		99		51,620
2014											1,023		994		994		992		966		139		54,494
2015													1,068		1,033		1,031		1,030		185		55,468
2016															1,115		1,108		1,097		313		53,038
2017																	1,196		1,200		539		52,658
2018																			1,257		705		48,996
																	Total		$	9,776

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (a)
2009	$	170	$	381	$	510	$	591	$	653	$	691	$	715	$	731	$	740	$	748	92.2	%
2010			191		411		559		644		699		735		756		770		782		91.7	%
2011					172		380		517		606		655		687		707		725		89.4	%
2012							171		378		508		611		674		713		735		87.7	%
2013									180		388		545		656		717		754		82.6	%
2014											187		406		565		668		741		76.7	%
2015													176		406		569		692		67.2	%
2016															184		411		571		52.1	%
2017																	196		414		34.5	%
2018																			207		16.5	%
																	Total		$	6,369
									Unpaid losses and LAE — years 2009 through 2018										3,407
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																477
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	3,884

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	19.1	%	23.2	%	16.2	%	11.1	%	7.0	%	4.3	%	2.6	%	1.9	%	1.3	%	1.0	%
Cumulative	19.1	%	42.3	%	58.5	%	69.6	%	76.6	%	80.9	%	83.5	%	85.4	%	86.7	%	87.7	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

F-44

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Specialty financial
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	192	$	192	$	186	$	184	$	188	$	186	$	187	$	186	$	185	$	186	$	1	27,431
2010			138		145		132		132		135		133		130		127		126		1		21,922
2011					138		157		155		153		147		144		143		139		6		16,368
2012							163		163		151		139		137		135		132		6		21,064
2013									140		145		137		131		127		126		9		28,449
2014											146		157		156		153		147		9		29,411
2015													156		160		158		153		16		37,483
2016															179		184		187		24		44,820
2017																	212		215		34		46,921
2018																			212		79		36,606
																	Total		$	1,623

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018			% (a)
2009	$	112	$	145	$	157	$	166	$	171	$	181	$	185	$	186	$	186	$	185		99.5	%
2010			61		93		104		122		132		130		128		126		126			100.0	%
2011					58		111		115		123		130		131		131		132			95.0	%
2012							71		104		109		117		121		126		128			97.0	%
2013									70		100		107		113		117		117			92.9	%
2014											62		109		125		128		137			93.2	%
2015													72		110		129		133			86.9	%
2016															88		141		158			84.5	%
2017																	120		169			78.6	%
2018																			112			52.8	%
																	Total		$	1,397
									Unpaid losses and LAE — years 2009 through 2018										226
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																(1		)
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	225

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	50.5	%	26.4	%	7.5	%	5.8	%	4.7	%	1.7	%	0.5	%	(0.1	%)	—	%	(0.5	%)
Cumulative	50.5	%	76.9	%	84.4	%	90.2	%	94.9	%	96.6	%	97.1	%	97.0	%	97.0	%	96.5	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

F-45

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Other specialty
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims (a)
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	41	$	41	$	41	$	40	$	37	$	37	$	36	$	38	$	33	$	32	$	6	—
2010			36		39		40		39		40		40		40		40		40		3		—
2011					39		43		42		43		43		44		44		43		3		—
2012							42		40		39		40		41		39		39		6		—
2013									46		47		46		47		50		53		2		—
2014											58		57		59		59		60		13		—
2015													59		60		63		66		8		—
2016															61		61		65		21		—
2017																	63		65		36		—
2018																			86		62		—
																	Total		$	549

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (b)
2009	$	8	$	12	$	15	$	19	$	22	$	22	$	24	$	26	$	25	$	27	84.4	%
2010			8		14		21		24		27		33		35		36		37		92.5	%
2011					12		20		25		28		34		36		37		38		88.4	%
2012							8		17		21		25		28		30		30		76.9	%
2013									7		16		22		34		37		44		83.0	%
2014											13		21		30		36		43		71.7	%
2015													10		26		31		50		75.8	%
2016															9		19		31		47.7	%
2017																	10		19		29.2	%
2018																			12		14.0	%
																	Total		$	331
									Unpaid losses and LAE — years 2009 through 2018										218
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																62
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	280

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	18.7	%	17.0	%	12.6	%	14.1	%	9.3	%	7.6	%	3.4	%	3.7	%	(0.3	%)	6.3	%
Cumulative	18.7	%	35.7	%	48.3	%	62.4	%	71.7	%	79.3	%	82.7	%	86.4	%	86.1	%	92.4	%

(a) The amounts shown in Other specialty represent business assumed by AFG’s internal reinsurance program from the operations that make up AFG’s other Specialty property and casualty insurance sub-segments. Accordingly, the liability for incurred claims and allocated LAE represents additional reserves held on claims counted in the tables provided for the other sub-segments (above).

(b) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

F-46

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Total Specialty Group
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	1,624	$	1,607	$	1,596	$	1,566	$	1,552	$	1,545	$	1,543	$	1,539	$	1,529	$	1,519	$	43	222,664
2010			1,724		1,710		1,705		1,690		1,710		1,698		1,698		1,690		1,676		54		216,568
2011					1,840		1,848		1,849		1,871		1,861		1,866		1,859		1,843		67		209,098
2012							1,970		1,952		1,946		1,947		1,955		1,941		1,906		89		218,585
2013									2,036		2,011		2,000		1,996		2,000		1,982		128		221,362
2014											2,083		2,050		2,040		2,038		2,004		186		220,164
2015													2,114		2,047		2,041		2,038		245		227,435
2016															2,117		2,083		2,082		432		220,481
2017																	2,375		2,348		737		240,542
2018																			2,507		1,123		205,419
																	Total		$	19,905

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (a)
2009	$	509	$	871	$	1,079	$	1,216	$	1,308	$	1,370	$	1,404	$	1,424	$	1,435	$	1,445	95.1	%
2010			576		1,005		1,220		1,387		1,485		1,536		1,562		1,580		1,595		95.2	%
2011					609		1,181		1,389		1,534		1,629		1,682		1,711		1,734		94.1	%
2012							824		1,214		1,418		1,579		1,675		1,735		1,785		93.7	%
2013									697		1,214		1,443		1,617		1,714		1,774		89.5	%
2014											594		1,174		1,422		1,588		1,705		85.1	%
2015													619		1,129		1,404		1,592		78.1	%
2016															577		1,099		1,350		64.8	%
2017																	709		1,250		53.2	%
2018																			730		29.1	%
																	Total		$	14,960
									Unpaid losses and LAE — years 2009 through 2018										4,945
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																561
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	5,506

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	32.6	%	25.5	%	12.2	%	8.8	%	5.5	%	3.2	%	2.0	%	1.2	%	0.8	%	0.7	%
Cumulative	32.6	%	58.1	%	70.3	%	79.1	%	84.6	%	87.8	%	89.8	%	91.0	%	91.8	%	92.5	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Closed Block of Long-Term Care Insurance Following the completion of the sale of substantially all of its run-off long-term care insurance business in December 2015, AFG’s remaining long-term care insurance reserves were $45 million at December 31, 2018 and $39 million at December 31, 2017, net of reinsurance recoverables and excluding the impact of unrealized gains on securities. AFG’s remaining outstanding long-term care policies have level premiums and are guaranteed renewable. Premium rates can potentially be increased in reaction to adverse experience; however, any rate increases would require regulatory approval.

F-47

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

FHLB Funding Agreements   Great American Life Insurance Company (“GALIC”), a wholly-owned annuity subsidiary, is a member of the Federal Home Loan Bank of Cincinnati (“FHLB”). The FHLB makes advances and provides other banking services to member institutions. Members are required to purchase stock in the FHLB in addition to maintaining collateral deposits that back any funds advanced. GALIC’s $47 million investment in FHLB capital stock at December 31, 2018 is included in other investments at cost. Membership in the FHLB provides the annuity operations with an additional source of liquidity. These advances further the FHLB’s mission of improving access to housing by increasing liquidity in the residential mortgage-backed securities market. In the fourth quarter of 2018, GALIC refinanced the terms on a $40 million advance to extend the maturity and the FHLB advanced GALIC $225 million, increasing the total amount advanced to $1.10 billion (included in annuity benefits accumulated) at December 31, 2018. In 2017, GALIC refinanced the terms on advances totaling $831 million, which lowered the weighted average spread over LIBOR. Interest rates under the various funding agreements on the advances range from 0.15% to 0.24% over LIBOR (average rate of 2.68% at December 31, 2018). While these advances must be repaid between 2019 and 2021 ($445 million in 2019, $40 million in 2020 and $611 million in 2021), GALIC has the option to prepay all or a portion of the advances. GALIC has invested the proceeds from the advances in fixed maturity securities with similar expected lives as the advances for the purpose of earning a spread over the interest payments due to the FHLB. The advances on these agreements are collateralized by fixed maturity investments, which have a total fair value of $1.28 billion (included in available for sale fixed maturity securities) at December 31, 2018. Interest credited on the funding agreements, which is included in annuity benefits, was $20 million in 2018, $14 million in 2017 and $8 million in 2016.

Statutory Information   AFG’s U.S.-based insurance subsidiaries are required to file financial statements with state insurance regulatory authorities prepared on an accounting basis prescribed or permitted by such authorities (statutory basis). Net earnings and capital and surplus on a statutory basis for the insurance subsidiaries were as follows (in millions):

	Net Earnings						Capital and Surplus
	2018		2017		2016		2018		2017
Property and casualty companies	$	546	$	484	$	461	$	2,867	$	2,729
Life insurance companies	802		286		167		2,701		2,132

In the fourth quarter of 2018, GALIC, AFG’s primary annuity subsidiary, entered into a reinsurance treaty with Hannover Life Reassurance Company of America that transfers the risk of certain surrender activity in GALIC’s fixed-indexed annuity business. This treaty meets the statutory risk transfer rules and resulted in a $510 million increase in statutory surplus (through an after-tax reserve credit), which is reflected in the life insurance companies capital and surplus in the table above. Under GAAP, this transaction does not meet the GAAP insurance risk transfer criteria and did not have a material impact on AFG’s financial statements.

The National Association of Insurance Commissioners’ (“NAIC”) model law for risk based capital (“RBC”) applies to both life and property and casualty insurance companies. RBC formulas determine the amount of capital that an insurance company needs so that it has an acceptable expectation of not becoming financially impaired. Companies below specific trigger points or ratios are subject to regulatory action. At December 31, 2018 and 2017, the capital ratios of all AFG insurance companies substantially exceeded the RBC requirements. AFG’s insurance companies did not use any prescribed or permitted statutory accounting practices that differed from the NAIC statutory accounting practices at December 31, 2018 or 2017.

Payments of dividends by AFG’s insurance companies are subject to various state laws that limit the amount of dividends that can be paid. Under applicable restrictions, the maximum amount of dividends available to AFG in 2019 from its insurance subsidiaries without seeking regulatory approval is $1.30 billion. Additional amounts of dividends require regulatory approval.

Holding Company Dividends   AFG declared and paid common stock dividends to shareholders totaling $397 million, $421 million and $187 million in 2018, 2017 and 2016, respectively. Currently, there are no regulatory restrictions on AFG’s retained earnings or net earnings that materially impact its ability to pay dividends. Based on shareholders’ equity at December 31, 2018, AFG could pay dividends of nearly $2 billion without violating its most restrictive debt covenant. However, the payment of future dividends will be at the discretion of AFG’s Board of Directors and will be dependent on many factors including AFG’s financial condition and results of operations, the capital requirements of its insurance subsidiaries, and rating agency commitments.

F-48

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

Reinsurance In the normal course of business, AFG’s insurance subsidiaries cede reinsurance to other companies to diversify risk and limit maximum loss arising from large claims. However, AFG remains liable to its insureds regardless of whether a reinsurer is able to meet its obligations. The following table shows (in millions) (i) amounts deducted from property and casualty written and earned premiums in connection with reinsurance ceded, (ii) written and earned premiums included in income for reinsurance assumed and (iii) reinsurance recoveries, which represent ceded losses and loss adjustment expenses.

	2018			2017			2016
Direct premiums written	$	6,626		$	6,310		$	5,858
Reinsurance assumed	214			192			123
Reinsurance ceded	(1,817		)	(1,751		)	(1,595		)
Net written premiums	$	5,023		$	4,751		$	4,386
Direct premiums earned	$	6,472		$	6,112		$	5,745
Reinsurance assumed	204			157			118
Reinsurance ceded	(1,811		)	(1,690		)	(1,535		)
Net earned premiums	$	4,865		$	4,579		$	4,328
Reinsurance recoveries	$	1,249		$	1,379		$	810

In June 2017, AFG’s property and casualty insurance subsidiaries entered into a reinsurance agreement to obtain supplemental catastrophe protection through a catastrophe bond structure with Riverfront Re Ltd. (“Riverfront”). The reinsurance agreement provides supplemental reinsurance coverage up to 95% of $200 million (fully collateralized) for catastrophe losses in excess of $104 million (per occurrence and annual aggregate) occurring between June 1, 2017 and December 31, 2020. In connection with the reinsurance agreement, Riverfront issued notes to unrelated investors for the full amount of coverage provided under the reinsurance agreement. Through December 31, 2018, AFG’s incurred catastrophe losses have not reached the level of attachment for the catastrophe bond structure. Riverfront is a variable interest entity in which AFG does not have a variable interest because the variability in Riverfront’s results will be absorbed entirely by the investors in Riverfront. Accordingly, Riverfront is not consolidated in AFG’s financial statements and the reinsurance agreement is accounted for as ceded reinsurance. AFG’s cost for this coverage is approximately $11 million per year.

AFG’s property and casualty insurance operations entered into a similar reinsurance agreement in March 2014 to obtain additional catastrophe protection through a catastrophe bond structure with Riverfront, which provided supplemental reinsurance coverage for catastrophe losses occurring between April 1, 2014 and January 6, 2017.

AFG has reinsured approximately $7.69 billion of its $10.82 billion in face amount of life insurance at December 31, 2018 compared to $8.32 billion of its $12.05 billion in face amount of life insurance at December 31, 2017. Life written premiums ceded were $22 million, $28 million and $31 million for 2018, 2017 and 2016, respectively. Reinsurance recoveries on ceded life policies were $38 million, $35 million and $41 million for 2018, 2017 and 2016, respectively.

Fixed Annuities   For certain products, the liability for “annuity benefits accumulated” includes reserves for excess benefits expected to be paid on future deaths and annuitizations guaranteed withdrawal benefits and accrued persistency and premium bonuses. The liabilities included in AFG’s Balance Sheet for these benefits, excluding the impact of unrealized gains on securities, were as follows at December 31 (in millions):

	2018		2017
Expected death and annuitization	$	229	$	228
Guaranteed withdrawal benefits	472		358
Accrued persistency and premium bonuses	1		3

Variable Annuities   At December 31, 2018, the aggregate guaranteed minimum death benefit value (assuming every variable annuity policyholder died on that date) on AFG’s variable annuity policies exceeded the fair value of the underlying variable annuities by $35 million, compared to $15 million at December 31, 2017. Death benefits paid in excess of the variable annuity account balances were less than $1 million in each of the last three years ended December 31, 2018, 2017 and 2016.

F-49

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — CONTINUED

P.     Additional Information

Allowance for Uncollectible Reinsurance   AFG’s aggregate allowance for uncollectible reinsurance recoverables was $18 million at December 31, 2018 and $20 million at December 31, 2017. AFG reviews the allowance quarterly and adjusts it as necessary to reflect changes in estimates of uncollectible balances. AFG recorded net expense reductions against the allowance of $2 million in 2018 and less than $1 million in both 2017 and 2016. In 2017, the allowance was reduced by reinsurance recoverable write-offs of $2 million.

Operating Leases   Total rental expense for various leases of office space and equipment was $70 million in 2018, $69 million in 2017 and $67 million in 2016. Future minimum rentals, related principally to office space, required under operating leases having initial or remaining noncancelable lease terms in excess of one year at December 31, 2018, were as follows: 2019 – $65 million; 2020 – $57 million; 2021 – $50 million; 2022 – $40 million; 2023 – $35 million; and $79 million thereafter.

Financial Instruments — Unfunded Commitments On occasion, AFG and its subsidiaries have entered into financial instrument transactions that may present off-balance-sheet risks of both a credit and market risk nature. These transactions include commitments to fund loans, loan guarantees and commitments to purchase and sell securities or loans. At December 31, 2018, AFG and its subsidiaries had commitments to fund credit facilities and contribute capital to limited partnerships and limited liability corporations of approximately $949 million.

Benefit Plans   AFG expensed approximately $37 million in 2018, $45 million in 2017 and $43 million in 2016 for its retirement and employee savings plans.

F-50

PART III

The information required by the following Items will be included in AFG’s definitive Proxy Statement for the 2019 Annual Meeting of Shareholders, which will be filed with the Securities and Exchange Commission within 120 days after the end of the Registrant’s fiscal year and is incorporated herein by reference.

ITEM 10	Directors, Executive Officers of the Registrant and Corporate Governance
ITEM 11	Executive Compensation
ITEM 12	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
ITEM 13	Certain Relationships and Related Transactions, and Director Independence
ITEM 14	Principal Accountant Fees and Services

PART IV

ITEM 15

Exhibits and Financial Statement Schedules

(a)	Documents filed as part of this Report:
	1.	Financial Statements are included in Part II, Item 8.
	2.	Financial Statement Schedules:
		A.	Selected Quarterly Financial Data is included in Note N to the Consolidated Financial Statements.
		B.	Schedules filed herewith for 2018, 2017 and 2016:
				Page
			II — Condensed Financial Information of Registrant	S-3
			III — Supplementary Insurance Information	S-5
			All other schedules for which provisions are made in the applicable regulation of the Securities and Exchange Commission have been omitted as they are not applicable, not required, or the information required thereby is set forth in the Financial Statements or the notes thereto.
	3.	Exhibits — See Exhibit Index on the next page.

S-1

INDEX TO EXHIBITS

AMERICAN FINANCIAL GROUP, INC.

Number	Exhibit Description
3(a)	Amended and Restated Articles of Incorporation, filed as Exhibit 3(a) to AFG’s 10-K for 2017.		(*)
3(b)	Amended and Restated Code of Regulations, filed as Exhibit 3 to AFG’s Form 8-K filed on August 16, 2012.		(*)
4	Instruments defining the rights of security holders.	Registrant has no outstanding debt issues exceeding 10% of the assets of Registrant and consolidated subsidiaries.
	Material Contracts:
10(a)	Amended and Restated Non-Employee Directors Compensation Plan, filed as Exhibit 10 to the Form S-8 Registration Statement (File No. 333-181913) filed by AFG on November 13, 2012.		(*)
10(b)	Amended and Restated Deferred Compensation Plan, filed as Exhibit 10(b) to AFG’s Form 10-K for 2008.		(*)
10(c)	Annual Senior Executive Bonus Plan, filed as Exhibit 10(d) to AFG’s 10-K for 2017.		(*)
10(d)	Amended and restated Nonqualified Auxiliary RASP, filed as Exhibit 10(f) to AFG’s Form 10-K for 2008.		(*)
10(e)	2005 Stock Incentive Plan Exhibit 10 to the Form S-8 Registration Statement (File No. 333-184914) filed by AFG on November 13, 2012.		(*)
10(f)	2015 Stock Incentive Plan filed as Exhibit 10(g) to AFG’s Form 10-K for 2015.		(*)
10(g)	Senior Executive Long Term Incentive Compensation Plan, filed as Appendix A to AFG’s Proxy Statement filed on April 1, 2016.		(*)
10(h)	Credit Agreement dated June 2, 2016, among American Financial Group, Inc., Bank of America, N.A., as Administrative Agent, and several lenders, filed as Exhibit 10.1 to AFG’s Form 8-K filed on June 2, 2016.		(*)
21	Subsidiaries of the Registrant.
23	Consent of independent registered public accounting firm.
31(a)	Certification of Co-Chief Executive Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002.
31(b)	Certification of Co-Chief Executive Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002.
31(c)	Certification of Chief Financial Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002.
32	Certification of Co-Chief Executive Officers and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	The following financial information from American Financial Group’s Form 10-K for the year ended December 31, 2018, formatted in XBRL (Extensible Business Reporting Language):
	(i)     Consolidated Balance Sheet
	(ii)    Consolidated Statement of Earnings
	(iii)   Consolidated Statement of Comprehensive Income
	(iv)   Consolidated Statement of Changes in Equity
	(v)    Consolidated Statement of Cash Flows
	(vi)   Notes to Consolidated Financial Statements
	(vii)  Financial Statement Schedules
(*) Incorporated herein by reference.

S-2

AMERICAN FINANCIAL GROUP, INC. — PARENT ONLY

SCHEDULE II — CONDENSED FINANCIAL INFORMATION OF REGISTRANT

(In Millions)

Condensed Balance Sheet

	December 31,
	2018		2017
Assets:
Cash and cash equivalents	$	158	$	299
Investment in securities	65		70
Investment in subsidiaries (a)	6,155		6,310
Other investments	2		2
Other assets	68		141
Total assets	$	6,448	$	6,822
Liabilities and Equity:
Long-term debt	$	1,302	$	1,301
Other liabilities	176		191
Shareholders’ equity	4,970		5,330
Total liabilities and equity	$	6,448	$	6,822

Condensed Statement of Earnings

	Year ended December 31,
	2018		2017		2016
Revenues:
Dividends from subsidiaries	$	261	$	681	$	643
Equity in undistributed earnings of subsidiaries	529		264		286
Investment and other income	2		13		7
Total revenues	792		958		936
Costs and Expenses:
Interest charges on intercompany borrowings	8		9		9
Interest charges on other borrowings	62		85		77
Other expenses	70		142		82
Total costs and expenses	140		236		168
Earnings before income taxes	652		722		768
Provision for income taxes	122		247		119
Net Earnings Attributable to Shareholders	$	530	$	475	$	649

Condensed Statement of Comprehensive Income

Net earnings attributable to shareholders	$	530		$	475	$	649
Other comprehensive income (loss), net of tax	(544		)	296		62
Total comprehensive income (loss), net of tax	$	(14	)	$	771	$	711

________________________

(a) Investment in subsidiaries includes intercompany receivables and payables.

S-3

AMERICAN FINANCIAL GROUP, INC. — PARENT ONLY

SCHEDULE II — CONDENSED FINANCIAL INFORMATION OF REGISTRANT — CONTINUED

(In Millions)

Condensed Statement of Cash Flows

	Year ended December 31,
	2018			2017			2016
Operating Activities:
Net earnings attributable to shareholders	$	530		$	475		$	649
Adjustments:
Equity in net earnings of subsidiaries	(637		)	(575		)	(638		)
Dividends from subsidiaries	238			580			611
Other operating activities, net	84			98			(67		)
Net cash provided by operating activities	215			578			555
Investing Activities:
Capital contributions to subsidiaries	(11		)	(93		)	(560		)
Returns of capital from subsidiaries	23			30			—
Purchases of investments, property and equipment	(5		)	(2		)	(1		)
Proceeds from maturities and redemptions of investments	3			2			1
Net cash provided by (used in) investing activities	10			(63		)	(560		)
Financing Activities:
Additional long-term borrowings	—			712			296
Reductions of long-term debt	—			(745		)	—
Issuances of Common Stock	34			37			35
Repurchases of Common Stock	(6		)	—			(133		)
Cash dividends paid on Common Stock	(394		)	(417		)	(185		)
Net cash provided by (used in) financing activities	(366		)	(413		)	13
Net Change in Cash and Cash Equivalents	(141		)	102			8
Cash and cash equivalents at beginning of year	299			197			189
Cash and cash equivalents at end of year	$	158		$	299		$	197

S-4

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

SCHEDULE III — SUPPLEMENTARY INSURANCE INFORMATION

THREE YEARS ENDED DECEMBER 31, 2018

(IN MILLIONS)

Segment	Deferred policy acquisition costs		Reserves for future policy benefits, claims and unpaid losses and LAE		Unearned premiums		Net earned premiums		Net investment income			Benefits, claims, losses and settlement expenses		Amortization of deferred policy acquisition costs		Other operating expenses		Net written premiums (excluding life)
2018
Property and casualty insurance	$	299	$	9,741	$	2,595	$	4,865	$	438		$	3,003	$	644	$	957	$	5,023
Annuity	1,360		36,616		—		—		1,638			998		212		174		—
Other	23		635		—		24		18			40		4		479		3
Total	$	1,682	$	46,992	$	2,595	$	4,889	$	2,094		$	4,041	$	860	$	1,610	$	5,026
2017
Property and casualty insurance	$	270	$	9,678	$	2,410	$	4,579	$	362		$	2,955	$	556	$	867	$	4,751
Annuity	920		33,316		—		—		1,458			892		130		159		—
Other	26		658		—		22		11			26		4		552		3
Total	$	1,216	$	43,652	$	2,410	$	4,601	$	1,831		$	3,873	$	690	$	1,578	$	4,754
2016
Property and casualty insurance	$	238	$	8,563	$	2,171	$	4,328	$	350		$	2,762	$	520	$	870	$	4,386
Annuity	981		29,907		—		—		1,356			800		149		142		—
Other	20		691		—		24		(10		)	33		4		431		3
Total	$	1,239	$	39,161	$	2,171	$	4,352	$	1,696		$	3,595	$	673	$	1,443	$	4,389

S-5

Signatures

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	American Financial Group, Inc.
February 26, 2019	By:	/s/ Joseph E. (Jeff) Consolino
		Joseph E. (Jeff) Consolino
		Executive Vice President and Chief Financial Officer

__________________________________________________________________________________________

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated:

Signature	Capacity	Date
/s/ Carl H. Lindner III	Co-Chief Executive Officer and Director	February 26, 2019
Carl H. Lindner III	(Principal Executive Officer)
/s/ S. Craig Lindner	Co-Chief Executive Officer and Director	February 26, 2019
S. Craig Lindner	(Principal Executive Officer)
/s/ Joseph E. (Jeff) Consolino	Executive Vice President, Chief Financial Officer and Director	February 26, 2019
Joseph E. (Jeff) Consolino	(Principal Financial and Accounting Officer)
/s/ Kenneth C. Ambrecht	Director	February 26, 2019
Kenneth C. Ambrecht
/s/ John B. Berding	Director	February 26, 2019
John B. Berding
/s/ Virginia (Gina) C. Drosos	Director*	February 26, 2019
Virginia (Gina) C. Drosos
/s/ James E. Evans	Director	February 26, 2019
James E. Evans
/s/ Terry S. Jacobs	Director*	February 26, 2019
Terry S. Jacobs
/s/ Gregory G. Joseph	Director*	February 26, 2019
Gregory G. Joseph
/s/ William W. Verity	Director	February 26, 2019
William W. Verity
/s/ John I. Von Lehman	Director*	February 26, 2019
John I. Von Lehman
* Member of the Audit Committee

S-6

EX-21

Exhibit 21

AMERICAN FINANCIAL GROUP, INC.

SUBSIDIARIES OF THE REGISTRANT

The following is a list of subsidiaries of AFG at December 31, 2018. All corporations are subsidiaries of AFG and, if indented, subsidiaries of the company under which they are listed. The names of certain subsidiaries are omitted, as such subsidiaries in the aggregate would not constitute a significant subsidiary.

Name of Company	Incorporated	Percentage of Ownership
American Money Management Corporation	Ohio	100
American Real Estate Capital Company, LLC	Ohio	100
APU Holding Company	Ohio	100
American Premier Underwriters, Inc.	Pennsylvania	100
GAI Holding Bermuda Ltd.	Bermuda	77 (a)
GAI Indemnity, Ltd.	United Kingdom	100
Neon Capital Limited	United Kingdom	100
Neon Holdings (U.K.) Limited	United Kingdom	100
Lavenham Underwriting Limited	United Kingdom	100
Neon Service Company (U.K.) Limited	United Kingdom	100
Sampford Underwriting Limited	United Kingdom	100
Great American Financial Resources, Inc.	Delaware	100
Great American Life Insurance Company	Ohio	100
Annuity Investors Life Insurance Company	Ohio	100
Manhattan National Holding Corporation	Ohio	100
Manhattan National Life Insurance Company	Ohio	100
Great American Holding, Inc.	Ohio	100
ABA Insurance Services, Inc.	Ohio	100
Great American International Insurance Designated Activity Company	Ireland	100
Mid-Continent Casualty Company	Ohio	100
Mid-Continent Assurance Company	Ohio	100
Mid-Continent Excess and Surplus Insurance Company	Delaware	100
Oklahoma Surety Company	Ohio	100
National Interstate Corporation	Ohio	100
Hudson Indemnity, Ltd.	Cayman Islands	100
National Interstate Insurance Company	Ohio	100
National Interstate Insurance Company of Hawaii, Inc.	Ohio	100
Triumphe Casualty Company	Ohio	100
Vanliner Insurance Company	Missouri	100
Republic Indemnity Company of America	California	100
Republic Indemnity Company of California	California	100
Summit Holding Southeast, Inc.	Florida	100
Bridgefield Employers Insurance Company	Florida	100
Bridgefield Casualty Insurance Company	Florida	100
Great American Insurance Company	Ohio	100
American Empire Insurance Company	Ohio	100
American Empire Surplus Lines Insurance Company	Delaware	100
El Aguila, Compañia de Seguros, S.A. de C.V.	Mexico	100
GAI Warranty Company	Ohio	100
GAI Warranty Company of Florida	Florida	100
Great American Alliance Insurance Company	Ohio	100
Great American Assurance Company	Ohio	100
Great American Casualty Insurance Company	Ohio	100
Great American Contemporary Insurance Company	Ohio	100
Great American E&S Insurance Company	Delaware	100
Great American Fidelity Insurance Company	Delaware	100
Great American Insurance Company of New York	New York	100
Great American Protection Insurance Company	Ohio	100
Great American Security Insurance Company	Ohio	100
Great American Spirit Insurance Company	Ohio	100
Professional Risk Brokers, Inc.	Illinois	100
Helium Holdings Limited	Bermuda	100
Neon Employee Ownership LLC	Delaware	23.35 (b)
GAI Australia Pty Ltd.	Australia	100 (c)

(a) AFG directly owns 69.99% of GAI Holding Bermuda Ltd. and the remaining 30.01% is owned by GAI Australia Pty Ltd. (see footnote C below).

(b) AFG's 100%-owned subsidiary, Helium Holdings Limited, owns 23.35% (but the majority of the voting interest) of Neon Employee Ownership LLC ("NEO"). The remaining 76.65% is owned by the management of Neon Capital Limited.

(c) NEO owns 100% of the common stock of GAI Australia Pty Ltd. Accordingly, the noncontrolling shareholders of NEO indirectly own approximately 23% of GAI Holding Bermuda (76.65% of NEO multiplied by the 30.01% of GAI Holding Bermuda owned by GAI Australia).

E-1

EX-23

Exhibit 23

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the following Registration Statements and related Prospectuses of American Financial Group, Inc.:

	Registration
Form	Number	Description
S-8	33-58827	Employee Stock Purchase Plan
S-3	333-102567	Dividend Reinvestment Plan
S-8	333-117062	Non-employee Directors Compensation Plan
S-8	333-184913	Non-employee Directors Compensation Plan
S-8	333-14935	Retirement and Savings Plan
S-8	333-91945	Deferred Compensation Plan
S-8	333-125304	2005 Stock Incentive Plan
S-8	333-170343	2005 Stock Incentive Plan
S-8	333-184914	2005 Stock Incentive Plan
S-8	333-206291	2015 Stock Incentive Plan
S-3	333-223216	Shelf Registration

of our reports dated February 26, 2019, with respect to the consolidated financial statements and schedules of American Financial Group, Inc. and subsidiaries and the effectiveness of internal control over financial reporting of American Financial Group, Inc. and subsidiaries, included in this Annual Report (Form 10-K) of American Financial Group, Inc. and subsidiaries for the year ended December 31, 2018.

/s/ ERNST & YOUNG LLP

Cincinnati, Ohio

February 26, 2019

E-2

EX-31.A

Exhibit 31(a)

AMERICAN FINANCIAL GROUP, INC.

SARBANES-OXLEY SECTION 302(a) CERTIFICATIONS

I, Carl H. Lindner III, certify that:

1. I have reviewed this annual report on Form 10-K of American Financial Group, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

February 26, 2019	By:	/s/ Carl H. Lindner III
		Carl H. Lindner III
		Co-Chief Executive Officer

E-3

EX-31.B

Exhibit 31(b)

AMERICAN FINANCIAL GROUP, INC.

SARBANES-OXLEY SECTION 302(a) CERTIFICATIONS

I, S. Craig Lindner, certify that:

1. I have reviewed this annual report on Form 10-K of American Financial Group, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

February 26, 2019	By:	/s/ S. Craig Lindner
		S. Craig Lindner
		Co-Chief Executive Officer

E-4

EX-31.C

Exhibit 31(c)

AMERICAN FINANCIAL GROUP, INC.

SARBANES-OXLEY SECTION 302(a) CERTIFICATIONS

I, Joseph E. (Jeff) Consolino, certify that:

1. I have reviewed this annual report on Form 10-K of American Financial Group, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

February 26, 2019	By:	/s/ Joseph E. (Jeff) Consolino
		Joseph E. (Jeff) Consolino
		Executive Vice President and Chief Financial Officer

E-5

EX-32

Exhibit 32

AMERICAN FINANCIAL GROUP, INC.

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

Pursuant to section 906 of the Sarbanes-Oxley Act of 2002

In connection with the filing with the Securities and Exchange Commission of the Annual Report of American Financial Group, Inc. (the “Company”) on Form 10-K for the period ended December 31, 2018 (the “Report”), the undersigned officers of the Company, certify, pursuant to section 906 of the Sarbanes-Oxley Act of 2002, that to the best of their knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

February 26, 2019	By:	/s/ Carl H. Lindner III
Date		Carl H. Lindner III
		Co-Chief Executive Officer
February 26, 2019	By:	/s/ S. Craig Lindner
Date		S. Craig Lindner
		Co-Chief Executive Officer
February 26, 2019	By:	/s/ Joseph E. (Jeff) Consolino
Date		Joseph E. (Jeff) Consolino
		Executive Vice President and Chief Financial Officer

A signed original of this written statement will be retained by the Registrant and

furnished to the Securities and Exchange Commission or its staff upon request.

E-6

XML

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Feb. 01, 2019	Jun. 30, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	AMERICAN FINANCIAL GROUP INC
Entity Central Index Key	0001042046
Document Type	10-K
Document Period End Date	Dec. 31, 2018
Amendment Flag	false
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Public Float			$ 8,400
Entity Common Stock, Shares Outstanding		89,312,398

XML

Consolidated Balance Sheet - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Assets:
Cash and cash equivalents	$ 1,515	$ 2,338
Investments:
Fixed maturities, available for sale at fair value (amortized cost — $41,837 and $37,038)	41,997	38,379
Fixed maturities, trading at fair value	105	348
Equity securities, at fair value	1,814	1,662
Investments accounted for using the equity method	1,374	999
Mortgage loans	1,068	1,125
Policy loans	174	184
Equity index call options	184	701
Real estate and other investments	267	312
Total cash and investments	48,498	46,048
Recoverables from reinsurers	3,349	3,369
Prepaid reinsurance premiums	610	600
Agents’ balances and premiums receivable	1,234	1,146
Deferred policy acquisition costs	1,682	1,216
Assets of managed investment entities	4,700	4,902
Other receivables	1,090	1,030
Variable annuity assets (separate accounts)	557	644
Other assets	1,529	1,504
Goodwill	207	199
Total assets	63,456	60,658
Liabilities and Equity:
Unpaid losses and loss adjustment expenses	9,741	9,678
Unearned premiums	2,595	2,410
Annuity benefits accumulated	36,616	33,316
Life, accident and health reserves	635	658
Payable to reinsurers	752	743
Liabilities of managed investment entities	4,512	4,687
Long-term debt	1,302	1,301
Variable annuity liabilities (separate accounts)	557	644
Other liabilities	1,774	1,887
Total liabilities	58,484	55,324
Redeemable noncontrolling interests	0	3
Shareholders’ equity:
Common Stock, no par value — 200,000,000 shares authorized — 89,291,724 and 88,275,460 shares outstanding	89	88
Capital surplus	1,245	1,181
Retained earnings	3,588	3,248
Accumulated other comprehensive income, net of tax	48	813
Total shareholders’ equity	4,970	5,330
Noncontrolling interests	2	1
Total equity	4,972	5,331
Total liabilities and equity	$ 63,456	$ 60,658

XML

Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Fixed maturities, available for sale at amortized cost	$ 41,837	$ 37,038
Common Stock, par value (USD per share)	$ 0	$ 0
Common Stock, shares authorized	200,000,000	200,000,000
Common Stock, shares outstanding	89,291,724	88,275,460

XML

Consolidated Statement of Earnings - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues:
Property and casualty insurance net earned premiums	$ 4,865	$ 4,579	$ 4,328
Life, accident and health net earned premiums	24	22	24
Net investment income	2,094	1,831	1,696
Realized gains (losses) on:
Securities	(266)	5	19
Subsidiaries	0	0	2
Income (loss) of managed investment entities:
Investment income	255	210	190
Gain (loss) on change in fair value of assets/liabilities	(21)	12	15
Other income	199	206	224
Total revenues	7,150	6,865	6,498
Costs and Expenses:
Property and casualty insurance: Losses and loss adjustment expenses	3,003	2,955	2,762
Property and casualty insurance: Commissions and other underwriting expenses	1,583	1,407	1,349
Annuity benefits	998	892	800
Life, accident and health benefits	40	26	33
Annuity and supplemental insurance acquisition expenses	261	173	186
Interest charges on borrowed money	62	85	77
Expenses of managed investment entities	211	181	151
Other expenses	353	422	353
Total costs and expenses	6,511	6,141	5,711
Earnings before income taxes	639	724	787
Provision for income taxes	122	247	119
Net earnings, including noncontrolling interests	517	477	668
Less: Net earnings (losses) attributable to noncontrolling interests	(13)	2	19
Net Earnings Attributable to Shareholders	$ 530	$ 475	$ 649
Earnings Attributable to Shareholders per Common Share:
Basic (USD per share)	$ 5.95	$ 5.40	$ 7.47
Diluted (USD per share)	$ 5.85	$ 5.28	$ 7.33
Average number of Common Shares:
Basic (shares)	89.0	87.8	86.9
Diluted (shares)	90.6	89.8	88.5
Supplemental disclosure of Realized gains (losses) on securities:
Realized gains (losses) before impairments	$ (247)	$ 78	$ 135
Losses on securities with impairment	(19)	(74)	(115)
Non-credit portion recognized in other comprehensive income (loss)	0	1	(1)
Impairment charges recognized in earnings	(19)	(73)	(116)
Total realized gains (losses) on securities	$ (266)	$ 5	$ 19

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Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net earnings, including noncontrolling interests	$ 517	$ 477	$ 668
Net unrealized gains (losses) on securities:
Unrealized holding gains (losses) on securities arising during the period	(544)	297	80
Reclassification adjustment for realized (gains) losses included in net earnings	8	(10)	(12)
Total net unrealized gains (losses) on securities	(536)	287	68
Net unrealized gains (losses) on cash flow hedges	2	(4)	(8)
Foreign currency translation adjustments	(10)	12	7
Pension and other postretirement plans adjustments	0	1	0
Other comprehensive income (loss), net of tax	(544)	296	67
Total comprehensive income (loss), net of tax	(27)	773	735
Less: Comprehensive income (loss) attributable to noncontrolling interests	(13)	2	24
Comprehensive income (loss) attributable to shareholders	$ (14)	$ 771	$ 711

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Consolidated Statement of Changes in Equity - USD ($) $ in Millions	Total	Total	Common Shares	Common Stock and Capital Surplus	Retained Earnings	Accumulated Other Comprehensive Inc. (Loss)		Noncontrolling Interests
Beginning Balance, shares at Dec. 31, 2015			87,474,452
Beginning Balance at Dec. 31, 2015	$ 4,770	$ 4,592		$ 1,301	$ 2,987	$ 304		$ 178
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to parent	649	649			649
Net income (loss), including portion attributable to nonredeemable noncontrolling interest	668							19
Other comprehensive income (loss)	67	62				62		5
Dividends	(187)	(187)			(187)
Shares issued:
Exercise of stock options, shares			958,344
Exercise of stock options	32	32		32
Restricted stock awards, shares			318,940
Restricted stock awards	0	0		0
Other benefit plans, shares			95,875
Other benefit plans	7	7		7
Dividend reinvestment plan, shares			25,516
Dividend reinvestment plan	2	2		2
Stock-based compensation: Expense	22	22		22
Shares acquired and retired, shares			(1,911,976)
Shares acquired and retired	(133)	(133)		(29)	(104)
Shares exchanged — benefit plans, shares			(32,707)
Shares exchanged — benefit plans	(2)	(2)		0	(2)
Forfeitures of restricted stock, shares			(4,045)
Forfeitures of restricted stock	0	0		0
Acquisition of noncontrolling interests	(315)	(128)		(137)		9	[1]	(187)
Other	(12)				0			(12)
Ending Balance, shares at Dec. 31, 2016			86,924,399
Ending Balance at Dec. 31, 2016	4,919	4,916		1,198	3,343	375		3
Beginning Balance, Redeemable Noncontrolling Interests at Dec. 31, 2015	0
Ending Balance, Redeemable Noncontrolling Interests at Dec. 31, 2016	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to parent	475	475			475
Net income (loss), including portion attributable to nonredeemable noncontrolling interest	477							2
Other comprehensive income (loss)	296	296				296		0
Impact of the U.S. corporate tax rate change on AOCI	0	0			(145)	145		0
Dividends	(421)	(421)			(421)
Shares issued:
Exercise of stock options, shares			1,020,986
Exercise of stock options	34	34		34
Restricted stock awards, shares			232,250
Restricted stock awards	0	0		0
Other benefit plans, shares			99,588
Other benefit plans	10	10		10
Dividend reinvestment plan, shares			42,572
Dividend reinvestment plan	4	4		4
Stock-based compensation: Expense	24	24		24
Shares exchanged — benefit plans, shares			(37,718)
Shares exchanged — benefit plans	(5)	(5)		(1)	(4)
Forfeitures of restricted stock, shares			(6,617)
Forfeitures of restricted stock	0	0		0
Sale of redeemable noncontrolling interests	(3)	(3)				(3)		0
Other	$ (4)	0			0	0		(4)
Ending Balance, shares at Dec. 31, 2017	88,275,460		88,275,460
Ending Balance at Dec. 31, 2017	$ 5,331	5,330		1,269	3,248	813		1
Ending Balance, Redeemable Noncontrolling Interests at Dec. 31, 2017	3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of accounting change	4	4			225	(221)
Redeemable Noncontrolling Interest, Equity, Carrying Amount [Abstract]
Redeemable noncontrolling interests	3
Net income (loss) attributable to parent	530	530			530
Net income (loss), including portion attributable to nonredeemable noncontrolling interest	531							1
Other comprehensive income (loss)	(544)	(544)				(544)		0
Dividends	$ (397)	(397)			(397)
Exercise of stock options, shares	778,270		778,270
Exercise of stock options	$ 29	29		29
Restricted stock awards, shares			200,625
Restricted stock awards	0	0		0
Other benefit plans, shares			103,797
Other benefit plans	12	12		12
Dividend reinvestment plan, shares			29,998
Dividend reinvestment plan	3	3		3
Stock-based compensation: Expense	23	23		23
Shares acquired and retired, shares			(65,589)
Shares acquired and retired	(6)	(6)		(1)	(5)
Shares exchanged — benefit plans, shares			(26,520)
Shares exchanged — benefit plans	(3)	(3)		(1)	(2)
Forfeitures of restricted stock, shares			(4,317)
Forfeitures of restricted stock	0	0		0
Other	$ (11)	(11)			(11)			0
Ending Balance, shares at Dec. 31, 2018	89,291,724		89,291,724
Ending Balance at Dec. 31, 2018	$ 4,972	$ 4,970		$ 1,334	$ 3,588	$ 48		$ 2
Redeemable Noncontrolling Interest, Equity, Carrying Amount [Abstract]
Net income (loss) attributable to redeemable noncontrolling interest	(14)
Shareholders' equity, redeemable noncontrolling interests, other changes	11
Ending Balance, Redeemable Noncontrolling Interests at Dec. 31, 2018	0
Redeemable Noncontrolling Interest, Equity, Carrying Amount [Abstract]
Redeemable noncontrolling interests	$ 0

[1] On January 1, 2018, AFG adopted new guidance that requires all equity securities other than those accounted for under the equity method to be reported at fair value with holding gains and losses recognized in net earnings. At the date of adoption, the $221 million net unrealized gain on equity securities classified as available for sale (with unrealized holding gains and losses reported in AOCI) under the prior guidance was reclassified from AOCI to retained earnings as the cumulative effect of an accounting change. Other also includes the December 2017 reclassification of $145 million stranded in AOCI from accounting for the Tax Cuts and Jobs Act of 2017 to retained earnings (see Note A — “Accounting Policies — Income Taxes”), the impact on AOCI of the December 2017 sale of redeemable noncontrolling interests in Neon and the November 2016 acquisition of the noncontrolling interest in NATL (see Note B — “Acquisitions and Sale of Businesses”).

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Consolidated Statement of Changes in Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Stockholders' Equity [Abstract]
Cash dividends per Common Share (USD per share)	$ 4.45	$ 4.7875	$ 2.1525

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Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Activities:
Net earnings, including noncontrolling interests	$ 517	$ 477	$ 668
Adjustments:
Depreciation and amortization	210	107	134
Annuity benefits	998	892	800
Realized (gains) losses on investing activities	265	(23)	(61)
Net sales of trading securities	111	17	79
Deferred annuity and life policy acquisition costs	(263)	(225)	(230)
Change in:
Reinsurance and other receivables	(211)	(963)	(315)
Other assets	96	13	(467)
Insurance claims and reserves	425	1,321	533
Payable to reinsurers	9	109	43
Other liabilities	(140)	(18)	265
Managed investment entities’ assets/liabilities	148	60	(279)
Other operating activities, net	(82)	37	(20)
Net cash provided by operating activities	2,083	1,804	1,150
Investing Activities:
Purchases of fixed maturities	(10,183)	(9,485)	(7,537)
Purchases of equity securities	(568)	(182)	(207)
Purchases of mortgage loans	(167)	(254)	(341)
Purchases of equity index call options and other investments	(973)	(831)	(738)
Purchases of real estate, property and equipment	(80)	(109)	(49)
Purchases of businesses	(36)	0	0
Proceeds from maturities and redemptions of fixed maturities	4,948	6,105	4,713
Proceeds from repayments of mortgage loans	201	215	262
Proceeds from sales of fixed maturities	501	392	641
Proceeds from sales of equity securities	247	216	348
Proceeds from sales and settlements of equity index call options and other investments	883	789	319
Proceeds from sales of real estate, property and equipment	3	55	55
Cash and cash equivalents of businesses acquired	13	0	0
Managed investment entities:
Purchases of investments	(2,117)	(2,979)	(2,254)
Proceeds from sales and redemptions of investments	1,948	2,774	1,890
Other investing activities, net	30	2	(83)
Net cash used in investing activities	(5,350)	(3,292)	(2,981)
Financing Activities:
Annuity receipts	5,632	4,341	4,585
Annuity surrenders, benefits and withdrawals	(2,916)	(2,405)	(2,275)
Net transfers from variable annuity assets	47	54	42
Additional long-term borrowings	0	712	302
Reductions of long-term debt	0	(745)	(18)
Issuances of managed investment entities’ liabilities	1,983	2,731	2,293
Retirements of managed investment entities’ liabilities	(1,935)	(2,585)	(1,600)
Issuances of Common Stock	33	37	35
Repurchases of Common Stock	(6)	0	(133)
Cash dividends paid on Common Stock	(394)	(417)	(185)
Acquisition of noncontrolling interests in subsidiary	0	0	(315)
Other financing activities, net	0	(4)	(13)
Net cash provided by (used in) financing activities	2,444	1,719	2,718
Net Change in Cash and Cash Equivalents	(823)	231	887
Cash and cash equivalents at beginning of year	2,338	2,107	1,220
Cash and cash equivalents at end of year	$ 1,515	$ 2,338	$ 2,107

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Accounting Policies

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Accounting Policies

Accounting Policies

Basis of Presentation   The consolidated financial statements include the accounts of American Financial Group, Inc. and its subsidiaries (“AFG”). Certain reclassifications have been made to prior years to conform to the current year’s presentation. All significant intercompany balances and transactions have been eliminated. The results of operations of companies since their formation or acquisition are included in the consolidated financial statements. Events or transactions occurring subsequent to December 31, 2018, and prior to the filing of this Form 10-K, have been evaluated for potential recognition or disclosure herein.

The preparation of the financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Changes in circumstances could cause actual results to differ materially from those estimates.

Fair Value Measurements   Accounting standards define fair value as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants on the measurement date. The standards establish a hierarchy of valuation techniques based on whether the assumptions that market participants would use in pricing the asset or liability (“inputs”) are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect AFG’s assumptions about the assumptions market participants would use in pricing the asset or liability. AFG did not have any significant nonrecurring fair value measurements of nonfinancial assets and liabilities in 2018 or 2017.

Investments On January 1, 2018, AFG adopted Accounting Standards Update (“ASU”) 2016-01, which requires all equity securities other than those accounted for under the equity method to be reported at fair value with holding gains and losses recognized in net earnings. At December 31, 2017, AFG had $1.60 billion in equity securities classified as “available for sale” under the prior guidance with holding gains and losses included in accumulated other comprehensive income (“AOCI”) instead of net earnings. At the date of adoption, the $221 million net unrealized gain on equity securities included in AOCI was reclassified to retained earnings as the cumulative effect of an accounting change. The cumulative effect of the accounting change also includes the net unrealized gain on AFG’s small number of limited partnerships and similar investments carried at cost under the prior guidance that are carried at fair value through net earnings under the new guidance ($4 million net of tax at the date of adoption).

Holding gains and losses on equity securities carried at fair value under ASU 2016-01 are generally recorded in realized gains (losses) on securities. However, prior to the adoption of the new guidance, AFG classified a small portion of its equity securities as “trading” and reported those investments at fair value with holding gains and losses recognized in net investment income. These investments consisted primarily of equity securities held to offset the impact of changes in the stock market on employee benefit plans that are impacted by stock market performance and totaled $62 million at December 31, 2017. Following the adoption of the new guidance, AFG continues to record holding gains and losses on these securities, as well as its small portfolio of limited partnerships and similar investments carried at fair value under the new guidance and certain other securities classified at purchase as “fair value through net investment income” in net investment income.

Under the new guidance, AFG recorded holding losses of $257 million on equity securities in net earnings during 2018 on securities that were still owned at December 31, 2018. Under the prior guidance, these holding losses would have been recorded in AOCI (with the exception of any impairment charge that may have been recorded). Because almost all of the equity securities impacted by the new guidance were carried at fair value through AOCI under the prior guidance, the adoption of the new guidance did not have a material impact on AFG’s financial position.

Fixed maturity securities classified as “available for sale” are reported at fair value with unrealized gains and losses included in AOCI in AFG’s Balance Sheet. Fixed maturity securities classified as “trading” are reported at fair value with changes in unrealized holding gains or losses during the period included in net investment income. Mortgage and policy loans are carried primarily at the aggregate unpaid balance.

Premiums and discounts on fixed maturity securities are amortized using the effective interest method. Mortgage-backed securities (“MBS”) are amortized over a period based on estimated future principal payments, including prepayments. Prepayment assumptions are reviewed periodically and adjusted to reflect actual prepayments and changes in expectations.

Limited partnerships and similar investments are generally accounted for using the equity method of accounting. Under the equity method, AFG records its share of the earnings or losses of the investee based on when they are reported by the investee in its financial statements rather than in the period in which the investee declares a dividend. AFG’s share of the earnings or losses from equity method investments is generally recorded on a quarter lag due to the timing of the receipt of the investee’s financial statements. AFG’s equity in the earnings (losses) of limited partnerships and similar investments is included in net investment income.

Gains or losses on fixed-maturity securities are determined on the specific identification basis. When a decline in the value of a specific investment is considered to be other-than-temporary at the balance sheet date, a provision for impairment is charged to earnings (included in realized gains (losses) on securities) and the cost basis of that investment is reduced. If management can assert that it does not intend to sell an impaired fixed maturity security and it is not more likely than not that it will have to sell the security before recovery of its amortized cost basis, then the other-than-temporary impairment is separated into two components: (i) the amount related to credit losses (recorded in earnings) and (ii) the amount related to all other factors (recorded in other comprehensive income). The credit-related portion of an other-than-temporary impairment is measured by comparing a security’s amortized cost to the present value of its current expected cash flows discounted at its effective yield prior to the impairment charge. Both components are shown in the statement of earnings. If management intends to sell an impaired security, or it is more likely than not that it will be required to sell the security before recovery, an impairment charge to earnings is recorded to reduce the amortized cost of that security to fair value.

Derivatives Derivatives included in AFG’s Balance Sheet are recorded at fair value. Changes in fair value of derivatives are included in earnings, unless the derivatives are designated and qualify as highly effective cash flow hedges. Derivatives that do not qualify for hedge accounting under GAAP consist primarily of (i) components of certain fixed maturity securities (primarily interest-only and principal-only MBS) and (ii) the equity-based component of certain annuity products (included in annuity benefits accumulated) and related equity index options designed to be consistent with the characteristics of the liabilities and used to mitigate the risk embedded in those annuity products.

To qualify for hedge accounting, at the inception of a derivative contract, AFG formally documents the relationship between the terms of the hedge and the hedged items and its risk management objective. This documentation includes defining how hedge effectiveness and ineffectiveness will be measured on a retrospective and prospective basis.

Changes in the fair value of derivatives that are designated and qualify as highly effective cash flow hedges are recorded in AOCI and are reclassified into earnings when the variability of the cash flows from the hedged items impacts earnings. Any hedge ineffectiveness is immediately recorded in current period earnings. When the change in the fair value of a qualifying cash flow hedge is included in earnings, it is included in the same line item in the statement of earnings as the cash flows from the hedged item. AFG uses interest rate swaps that are designated and qualify as highly effective cash flow hedges to mitigate interest rate risk related to certain floating-rate securities included in AFG’s portfolio of fixed maturity securities.

For derivatives that are designated and qualify as highly effective fair value hedges, changes in the fair value of the derivative, along with changes in the fair value of the hedged item attributable to the hedged risk, are recognized in current period earnings.

Goodwill Goodwill represents the excess of cost of subsidiaries over AFG’s equity in their underlying net assets. Goodwill is not amortized, but is subject to an impairment test at least annually. An entity is not required to complete the quantitative annual goodwill impairment test on a reporting unit if the entity elects to perform a qualitative analysis and determines that it is more likely than not that the reporting unit’s fair value exceeds its carrying amount.

Reinsurance Amounts recoverable from reinsurers are estimated in a manner consistent with the claim liability associated with the reinsured policies. AFG’s property and casualty insurance subsidiaries report as assets (i) the estimated reinsurance recoverable on paid and unpaid losses, including an estimate for losses incurred but not reported, and (ii) amounts paid or due to reinsurers applicable to the unexpired terms of policies in force. Payable to reinsurers includes ceded premiums due to reinsurers, as well as ceded premiums retained by AFG’s property and casualty insurance subsidiaries under contracts to fund ceded losses as they become due. AFG’s insurance subsidiaries also assume reinsurance from other companies. Earnings on reinsurance assumed is recognized based on information received from ceding companies.

An AFG subsidiary cedes life insurance policies to a third party on a funds withheld basis whereby the subsidiary retains the assets (securities) associated with the reinsurance contract. Interest is credited to the reinsurer based on the actual investment performance of the retained assets. This reinsurance contract is considered to contain an embedded derivative (that must be adjusted to fair value) because the yield on the payable is based on a specific block of the ceding company’s assets, rather than the overall creditworthiness of the ceding company. AFG determined that changes in the fair value of the underlying portfolio of fixed maturity securities is an appropriate measure of the value of the embedded derivative. The securities related to this contract are classified as “trading.” The adjustment to fair value on the embedded derivative offsets the investment income recorded on the adjustment to fair value of the related trading portfolio.

Deferred Policy Acquisition Costs (“DPAC”)   Policy acquisition costs (principally commissions, premium taxes and certain underwriting and policy issuance costs) directly related to the successful acquisition or renewal of an insurance contract are deferred. DPAC also includes capitalized costs associated with sales inducements offered to fixed annuity policyholders such as enhanced interest rates and premium and persistency bonuses.

For the property and casualty companies, DPAC is limited based upon recoverability without any consideration for anticipated investment income and is charged against income ratably over the terms of the related policies. A premium deficiency is recognized if the sum of expected claims costs, claims adjustment expenses and unamortized acquisition costs exceed the related unearned premiums. A premium deficiency is first recognized by charging any unamortized acquisition costs to expense to the extent required to eliminate the deficiency. If the premium deficiency is greater than unamortized acquisition costs, a liability is accrued for the excess deficiency and reported with unpaid losses and loss adjustment expenses.

DPAC related to annuities is deferred to the extent deemed recoverable and amortized, with interest, in relation to the present value of actual and expected gross profits on the policies. Expected gross profits consist principally of estimated future investment margin (estimated future net investment income less interest credited on policyholder funds) and surrender, mortality, and other life and annuity policy charges, less death, annuitization and guaranteed withdrawal benefits in excess of account balances and estimated future policy administration expenses. To the extent that realized gains and losses result in adjustments to the amortization of DPAC related to annuities, such adjustments are reflected as components of realized gains (losses) on securities.

DPAC related to traditional life and health insurance is amortized over the expected premium paying period of the related policies, in proportion to the ratio of annual premium revenues to total anticipated premium revenues. See “Life, Accident and Health Reserves” below for details on the impact of loss recognition on the accounting for traditional life and health insurance contracts.

DPAC includes the present value of future profits on business in force of annuity and life, accident and health insurance companies acquired (“PVFP”). PVFP represents the portion of the costs to acquire companies that is allocated to the value of the right to receive future cash flows from insurance contracts existing at the date of acquisition. PVFP is amortized with interest in relation to expected gross profits of the acquired policies for annuities and universal life products and in relation to the premium paying period for traditional life and health insurance products.

DPAC and certain other balance sheet amounts related to annuity and life businesses are also adjusted, net of tax, for the change in expense that would have been recorded if the unrealized gains (losses) from securities had actually been realized. These adjustments are included in unrealized gains (losses) on marketable securities, a component of AOCI in AFG’s Balance Sheet.

Managed Investment EntitiesA company is considered the primary beneficiary of, and therefore must consolidate, a variable interest entity (“VIE”) based primarily on its ability to direct the activities of the VIE that most significantly impact that entity’s economic performance and the obligation to absorb losses of, or receive benefits from, the entity that could potentially be significant to the VIE.

AFG manages, and has investments in, collateralized loan obligations (“CLOs”) that are VIEs (see Note H — “Managed Investment Entities”). AFG has determined that it is the primary beneficiary of the CLOs because (i) its role as asset manager gives it the power to direct the activities that most significantly impact the economic performance of the CLOs and (ii) through its investment in the CLO debt tranches, it has exposure to CLO losses (limited to the amount AFG invested) and the right to receive CLO benefits that could potentially be significant to the CLOs.

Because AFG has no right to use the CLO assets and no obligation to pay the CLO liabilities, the assets and liabilities of the CLOs are shown separately in AFG’s Balance Sheet. AFG has elected the fair value option for reporting on the CLO assets and liabilities to improve the transparency of financial reporting related to the CLOs. The net gain or loss from accounting for the CLO assets and liabilities at fair value is presented separately in AFG’s Statement of Earnings.

The fair values of a CLO’s assets may differ from the separately measured fair values of its liabilities even though the CLO liabilities only have recourse to the CLO assets. AFG has set the carrying value of the CLO liabilities equal to the fair value of the CLO assets (which have more observable fair values) as an alternative to reporting those liabilities at a separately measured fair value. CLO earnings attributable to AFG’s shareholders are measured by the change in the fair value of AFG’s investments in the CLOs and management fees earned.

Unpaid Losses and Loss Adjustment Expenses   The net liabilities stated for unpaid claims and for expenses of investigation and adjustment of unpaid claims represent management’s best estimate and are based upon (i) the accumulation of case estimates for losses reported prior to the close of the accounting period on direct business written; (ii) estimates received from ceding reinsurers and insurance pools and associations; (iii) estimates of unreported losses (including possible development on known claims) based on past experience; (iv) estimates based on experience of expenses for investigating and adjusting claims; and (v) the current state of the law and coverage litigation. Establishing reserves for asbestos, environmental and other mass tort claims involves considerably more judgment than other types of claims due to, among other things, inconsistent court decisions, an increase in bankruptcy filings as a result of asbestos-related liabilities, novel theories of coverage, and judicial interpretations that often expand theories of recovery and broaden the scope of coverage.

Loss reserve liabilities are subject to the impact of changes in claim amounts and frequency and other factors. Changes in estimates of the liabilities for losses and loss adjustment expenses are reflected in the statement of earnings in the period in which determined. Despite the variability inherent in such estimates, management believes that the liabilities for unpaid losses and loss adjustment expenses are adequate.

Annuity Benefits Accumulated   Annuity receipts and benefit payments are recorded as increases or decreases in annuity benefits accumulated rather than as revenue and expense. Increases in this liability for interest credited are charged to annuity benefits expense and decreases for annuity policy charges are recorded in other income. For traditional fixed annuities, the liability for annuity benefits accumulated represents the account value that had accrued to the benefit of the policyholder as of the balance sheet date. For fixed-indexed annuities, the liability for annuity benefits accumulated includes an embedded derivative that represents the estimated fair value of the index participation with the remaining component representing the discounted value of the guaranteed minimum contract benefits.

For certain products, annuity benefits accumulated also includes reserves for accrued persistency and premium bonuses, guaranteed withdrawals and excess benefits expected to be paid on future deaths and annuitizations (“EDAR”). The liabilities for EDAR and guaranteed withdrawals are accrued for and modified using assumptions consistent with those used in determining DPAC and DPAC amortization, except that amounts are determined in relation to the present value of total expected assessments. Total expected assessments consist principally of estimated future investment margin, surrender, mortality, and other life and annuity policy charges, and unearned revenues once they are recognized as income.

Annuity benefits accumulated also includes amounts advanced from the Federal Home Loan Bank of Cincinnati.

Unearned Revenue   Certain upfront policy charges on annuities are deferred as unearned revenue (included in other liabilities) and recognized in net earnings (included in other income) using the same assumptions and estimated gross profits used to amortize DPAC.

Life, Accident and Health Reserves Liabilities for future policy benefits under traditional life, accident and health policies are computed using the net level premium method. Computations are based on the original projections of investment yields, mortality, morbidity and surrenders and include provisions for unfavorable deviations unless a loss recognition event (premium deficiency) occurs. Claim reserves and liabilities established for accident and health claims are modified as necessary to reflect actual experience and developing trends.

For long-duration contracts (such as traditional life and long-term care policies), loss recognition occurs when, based on current expectations as of the measurement date, existing contract liabilities plus the present value of future premiums (including reasonably expected rate increases) are not expected to cover the present value of future claims payments and related settlement and maintenance costs (excluding overhead) as well as unamortized acquisition costs. If a block of business is determined to be in loss recognition, a charge is recorded in earnings in an amount equal to the excess of the present value of expected future claims costs and unamortized acquisition costs over existing reserves plus the present value of expected future premiums (with no provision for adverse deviation). The charge is recorded first to reduce unamortized acquisition costs and then as an additional reserve (if unamortized acquisition costs have been reduced to zero).

In addition, reserves for traditional life and long-term care policies are subject to adjustment for loss recognition charges that would have been recorded if the unrealized gains (losses) from securities had actually been realized. This adjustment is included in unrealized gains (losses) on marketable securities, a component of AOCI in AFG’s Balance Sheet.

Debt Issuance CostsDebt issuance costs related to AFG’s outstanding debt are presented in its Balance Sheet as a direct reduction in the carrying value of long-term debt and are amortized over the life of the related debt using the effective interest method as a component of interest expense. Debt issuance costs related to AFG’s revolving credit facilities are included in other assets in AFG’s Balance Sheet.

Variable Annuity Assets and Liabilities   Separate accounts related to variable annuities represent the fair value of deposits invested in underlying investment funds on which AFG earns a fee. Investment funds are selected and may be changed only by the policyholder, who retains all investment risk.

AFG’s variable annuity contracts contain a guaranteed minimum death benefit (“GMDB”) to be paid if the policyholder dies before the annuity payout period commences. In periods of declining equity markets, the GMDB may exceed the value of the policyholder’s account. A GMDB liability is established for future excess death benefits using assumptions together with a range of reasonably possible scenarios for investment fund performance that are consistent with DPAC capitalization and amortization assumptions.

Premium Recognition   Property and casualty premiums are earned generally over the terms of the policies on a pro rata basis. Unearned premiums represent that portion of premiums written, which is applicable to the unexpired terms of policies in force. On reinsurance assumed from other insurance companies or written through various underwriting organizations, unearned premiums are based on information received from such companies and organizations. For traditional life, accident and health products, premiums are recognized as revenue when legally collectible from policyholders. For interest-sensitive life and universal life products, premiums are recorded in a policyholder account, which is reflected as a liability. Revenue is recognized as amounts are assessed against the policyholder account for mortality coverage and contract expenses.

Noncontrolling Interests   For balance sheet purposes, noncontrolling interests represent the interests of shareholders other than AFG in consolidated entities. In the statement of earnings, net earnings and losses attributable to noncontrolling interests represents such shareholders’ interest in the earnings and losses of those entities. Noncontrolling interests that are redeemable at the option of the holder are presented separately in the mezzanine section of the balance sheet (between liabilities and equity).

Income Taxes   Deferred income taxes are calculated using the liability method. Under this method, deferred income tax assets and liabilities are determined based on differences between financial reporting and tax bases and are measured using enacted tax rates. A valuation allowance is established to reduce total deferred tax assets to an amount that will more likely than not be realized.

AFG recognizes the tax benefits of uncertain tax positions only when the position is more likely than not to be sustained under examination by the appropriate taxing authority. Interest and penalties on AFG’s reserve for uncertain tax positions are recognized as a component of tax expense.

The effect of a change in tax rates on deferred tax assets and liabilities is recorded in net earnings in the period that includes the enactment date. This includes the impact on deferred tax assets or liabilities established through AOCI, which results in an amount equal to the difference between the deferred tax at the historical corporate rate and the newly enacted rate stranded in AOCI. As permitted under guidance adopted effective December 31, 2017 (ASU 2018-02), AFG reclassified the $145 million stranded in AOCI from accounting for the Tax Cuts and Jobs Act of 2017 to retained earnings at December 31, 2017. See Note L — “Income Taxes” for further information.

Stock-Based Compensation All share-based grants are recognized as compensation expense on a straight-line basis over their vesting periods based on their calculated fair value at the date of grant. AFG uses the Black-Scholes pricing model to measure the fair value of employee stock options. See Note K — “Shareholders’ Equity” for further information.

Benefit Plans   AFG provides retirement benefits to qualified employees of participating companies through the AFG 401(k) Retirement and Savings Plan, a defined contribution plan. AFG makes all contributions to the retirement fund portion of the plan and matches a percentage of employee contributions to the savings fund. Company contributions are expensed in the year for which they are declared. AFG and many of its subsidiaries provide health care and life insurance benefits to eligible retirees. AFG also provides postemployment benefits to former or inactive employees (primarily those on disability) who were not deemed retired under other company plans. The projected future cost of providing these benefits is expensed over the period employees earn such benefits.

Earnings Per Share   Although basic earnings per share only considers shares of common stock outstanding during the period, the calculation of diluted earnings per share includes the following adjustments to weighted average common shares related to stock-based compensation plans: 2018 – 1.6 million, 2017 – 2.0 million and 2016 – 1.6 million.

AFG’s weighted average diluted shares outstanding excludes the following anti-dilutive potential common shares related to stock compensation plans: 2018 and 2017 – none and 2016 – 0.4 million. Adjustments to net earnings attributable to shareholders in the calculation of diluted earnings per share were nominal in the 2018, 2017 and 2016 periods.

Statement of Cash Flows   For cash flow purposes, “investing activities” are defined as making and collecting loans and acquiring and disposing of debt or equity instruments, property and equipment and businesses. “Financing activities” include obtaining resources from owners and providing them with a return on their investments, borrowing money and repaying amounts borrowed. Annuity receipts, surrenders, benefits and withdrawals are also reflected as financing activities. All other activities are considered “operating.” Short-term investments having original maturities of three months or less when purchased are considered to be cash equivalents for purposes of the financial statements.

Revenue Recognition Guidance Effective in 2018 On January 1, 2018, AFG adopted ASU 2014-09, which provides guidance on recognizing revenue when (or as) performance obligations under the contract are satisfied. The new guidance also updates the accounting for certain costs associated with obtaining and fulfilling contracts with customers and requires certain new disclosures. Because revenue recognition for insurance contracts and financial instruments (AFG’s primary sources of revenue) were excluded from the scope of the new guidance, the adoption of ASU 2014-09 did not have a material impact on AFG’s results of operations and financial position.

Lease Accounting Guidance Effective in 2019 In February 2016, the FASB issued ASU 2016-02, which requires entities that lease assets for terms longer than one year to recognize the assets and liabilities for the rights and obligations created by those leases on the balance sheet based on the present value of contractual cash flows. Qualitative and quantitative disclosures of the amount, timing and uncertainty of cash flows arising from leases will also be required. AFG will adopt the updated guidance effective January 1, 2019. The new guidance will not have a material effect on AFG’s results of operations because it does not change the manner in which lease-related expenses are recognized in the statement of earnings. In addition, the new guidance will not have a material effect on AFG’s financial position as recognizing the assets and liabilities related to operating leases upon adoption of the new guidance in January 2019 will increase AFG’s consolidated assets and consolidated liabilities by less than one-half of 1% as compared to AFG’s Balance Sheet at December 31, 2018.

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Acquisitions and Sale of Businesses

12 Months Ended

Dec. 31, 2018

Business Combinations [Abstract]

Acquisitions and Sale of Businesses

Acquisitions and Sale of Businesses

ABA Insurance Services Inc.   In November 2018, AFG acquired ABA Insurance Services Inc. (“ABAIS”) from American Bankers Mutual Insurance, Ltd. for approximately $30 million using cash on hand at the parent company. Additional contingent consideration of up to $3 million could be due after four years based on achieving certain operating milestones. ABAIS is based in Ohio and is a market-leading provider of directors and officers liability and other complementary insurance solutions for banks, small businesses and nonprofit organizations.

The allocation of the purchase price is shown in the table below (in millions):

	November 30, 2018
Total purchase price	$	30
Tangible assets acquired	28
Liabilities acquired	26
Net tangible assets acquired, at fair value	2
Excess purchase price over net tangible assets acquired	$	28
Allocation of excess purchase price:
Intangible assets acquired (*)	$	25
Deferred tax on intangible assets acquired (*)	(5		)
Goodwill	8
	$	28

(*) Included in Other assets in AFG’s Balance Sheet.

Approximately $25 million of the purchase price was recorded as a finite lived customer relationship intangible asset, which will be amortized over its estimated life of 9 years. The fair value of this intangible was estimated using a multi-period excess earnings method, which is a form of the income approach. The acquisition resulted in the recognition of $8 million in goodwill based on the excess of the purchase price over the fair value of the net assets acquired. The goodwill represents the fair value of acquired intangible assets that do not qualify for separate recognition, including the value of ABAIS’s assembled workforce. Business generated by ABAIS is included in the Specialty casualty sub-segment.

Neon Lloyd’s Business   On December 29, 2017, AFG completed the sale of an indirect noncontrolling interest in Neon, its United Kingdom-based Lloyd’s insurer, to certain Neon executives for cash equal to the fair value of the interest sold as determined by a third-party valuation firm. Because AFG continues to have a controlling interest in Neon, the sale was accounted for as an equity transaction with the excess of the carrying value of the net assets attributable to the noncontrolling interest sold over the consideration received recorded as a $3 million reduction in AFG’s Capital Surplus. As discussed in Note L — “Income Taxes,” the sale of the noncontrolling interest also resulted in the recognition of a $56 million tax benefit, including a $48 million tax benefit previously deferred in the 2016 restructuring of the Neon Lloyd’s operations.

Acquisition of Noncontrolling Interest in National Interstate Corporation   On November 10, 2016, AFG acquired the 49% of National Interstate Corporation (“NATL”) not previously owned by AFG’s wholly-owned subsidiary, Great American Insurance Company for $315 million ($32.00 per share) in a merger transaction. In addition, NATL paid a one-time special cash dividend of $0.50 per share to its shareholders immediately prior to the merger closing ($5 million was paid to noncontrolling shareholders). Expenses related to the merger were approximately $10 million and were expensed as incurred.

Because NATL was already a consolidated subsidiary of AFG prior to the merger, the acquisition was accounted for as an equity transaction. As a result, the excess of the consideration paid over the carrying value of the noncontrolling interest acquired was recorded as a $137 million reduction in AFG’s Capital Surplus. In addition, the merger allowed NATL and its subsidiaries to become members of the AFG consolidated tax group, which resulted in a tax benefit of $66 million in the fourth quarter of 2016.

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Segments of Operations

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Segments of Operations

Segments of Operations

AFG manages its business as three segments: (i) Property and casualty insurance, (ii) Annuity and (iii) Other, which includes holding company assets and costs, revenues and costs of AFG’s limited insurance operations outside of property and casualty insurance and annuities, and operations attributable to the noncontrolling interests of the managed investment entities.

AFG reports its property and casualty insurance business in the following Specialty sub-segments: (i) Property and transportation, which includes physical damage and liability coverage for buses, trucks and recreational vehicles, inland and ocean marine, agricultural-related products and other property coverages, (ii) Specialty casualty, which includes primarily excess and surplus, general liability, executive liability, professional liability, umbrella and excess liability, specialty coverage in targeted markets, customized programs for small to mid-sized businesses and workers’ compensation insurance, and (iii) Specialty financial, which includes risk management insurance programs for leasing and financing institutions (including equipment leasing and collateral and lender-placed mortgage property insurance), surety and fidelity products and trade credit insurance. Premiums and underwriting profit included under Other specialty represent business assumed by AFG’s internal reinsurance program from the operations that make up AFG’s other Specialty sub-segments and amortization of deferred gains on retroactive reinsurance transactions related to the sales of businesses in prior years. AFG’s annuity business markets traditional fixed, fixed-indexed and variable-indexed annuities in the retail, financial institutions, registered investment advisor and education markets. AFG’s reportable segments and their components were determined based primarily upon similar economic characteristics, products and services. Effective January 1, 2018, the results of AFG’s run-off long-term care and life businesses are included in the “Other” segment instead of as a separate reportable segment based on the immaterial size of the remaining operations. Prior period amounts were reclassified for consistent presentation.

Sales of property and casualty insurance outside of the United States represented 7% of AFG’s revenues in 2018, 5% of AFG’s revenues in 2017 and 4% of AFG’s revenues in 2016.

The following tables (in millions) show AFG’s assets, revenues and earnings before income taxes by segment and sub-segment.

	2018		2017		2016
Assets
Property and casualty insurance (a)	$	17,681	$	17,171	$	15,574
Annuity	39,952		37,179		33,409
Other	5,823		6,308		6,089
Total assets	$	63,456	$	60,658	$	55,072

Revenues
Property and casualty insurance:
Premiums earned:
Specialty
Property and transportation	$	1,729		$	1,711	$	1,662
Specialty casualty	2,403			2,186		2,006
Specialty financial	598			576		557
Other specialty	135			106		103
Total premiums earned	4,865			4,579		4,328
Net investment income	438			362		350
Other income (b)	10			28		51
Total property and casualty insurance	5,313			4,969		4,729
Annuity:
Net investment income	1,638			1,458		1,356
Other income	107			103		103
Total annuity	1,745			1,561		1,459
Other	358			330		289
Total revenues before realized gains (losses)	7,416			6,860		6,477
Realized gains (losses) on securities	(266		)	5		19
Realized gains on subsidiaries	—			—		2
Total revenues	$	7,150		$	6,865	$	6,498

(a) Not allocable to sub-segments.

(b) Includes income of $32 million (before noncontrolling interest) from the sale of an apartment property in 2016.

	2018			2017			2016
Earnings Before Income Taxes
Property and casualty insurance:
Underwriting:
Specialty
Property and transportation	$	120		$	154		$	166
Specialty casualty	141			104			78
Specialty financial	66			61			84
Other specialty	(5		)	(2		)	9
Other lines (a)	(20		)	(75		)	(101		)
Total underwriting	302			242			236
Investment and other income, net (b)	407			349			341
Total property and casualty insurance	709			591			577
Annuity	361			380			368
Other (c)	(165		)	(252		)	(179		)
Total earnings before realized gains (losses) and income taxes	905			719			766
Realized gains (losses) on securities	(266		)	5			19
Realized gains on subsidiaries	—			—			2
Total earnings before income taxes	$	639		$	724		$	787

(a) Includes special charges to increase asbestos and environmental (“A&E”) reserves of $18 million, $89 million and $36 million in 2018, 2017 and 2016, respectively. Also includes $18 million in favorable development related to the Neon exited lines recorded in connection with a reinsurance to close transaction in 2017 and a charge of $65 million related to Neon exited lines in 2016.

(b) Includes income of $32 million (before noncontrolling interest) from the sale of an apartment property in 2016.

(c) Primarily holding company interest and expenses, including losses on retirement of debt of $51 million in 2017 and special charges to increase A&E reserves related to AFG’s former railroad and manufacturing operations ($9 million in 2018, $24 million in 2017 and $5 million in 2016).

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Fair Value Measurements

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

Accounting standards for measuring fair value are based on inputs used in estimating fair value. The three levels of the hierarchy are as follows:

Level 1 — Quoted prices for identical assets or liabilities in active markets (markets in which transactions occur with sufficient frequency and volume to provide pricing information on an ongoing basis). AFG’s Level 1 financial instruments consist primarily of publicly traded equity securities, highly liquid government bonds for which quoted market prices in active markets are available and short-term investments of managed investment entities.

Level 2 — Quoted prices for similar instruments in active markets; quoted prices for identical or similar assets or liabilities in inactive markets (markets in which there are few transactions, the prices are not current, price quotations vary substantially over time or among market makers, or in which little information is released publicly); and valuations based on other significant inputs that are observable in active markets. AFG’s Level 2 financial instruments include separate account assets, corporate and municipal fixed maturity securities, asset-backed securities (“ABS”), mortgage-backed securities (“MBS”), non-affiliated common stocks, equity index options and investments of managed investment entities priced using observable inputs. Level 2 inputs include benchmark yields, reported trades, corroborated broker/dealer quotes, issuer spreads and benchmark securities. When non-binding broker quotes can be corroborated by comparison to similar securities priced using observable inputs, they are classified as Level 2.

Level 3 — Valuations derived from market valuation techniques generally consistent with those used to estimate the fair values of Level 2 financial instruments in which one or more significant inputs are unobservable or when the market for a security exhibits significantly less liquidity relative to markets supporting Level 2 fair value measurements. The unobservable inputs may include management’s own assumptions about the assumptions market participants would use based on the best information available at the valuation date. AFG’s Level 3 is comprised of financial instruments whose fair value is estimated based on non-binding broker quotes or internally developed using significant inputs not based on, or corroborated by, observable market information.

As discussed in Note A — “Accounting Policies — Managed Investment Entities,” AFG has set the carrying value of its CLO liabilities equal to the fair value of the CLO assets (which have more observable fair values) as an alternative to reporting those liabilities at separately measured fair values. As a result, the CLO liabilities are categorized within the fair value hierarchy on the same basis (proportionally) as the related CLO assets. Since the portion of the CLO liabilities allocated to Level 3 is derived from the fair value of the CLO assets, these amounts are excluded from the progression of Level 3 financial instruments.

AFG’s management is responsible for the valuation process and uses data from outside sources (including nationally recognized pricing services and broker/dealers) in establishing fair value. AFG’s internal investment professionals are a group of approximately 25 analysts whose primary responsibility is to manage AFG’s investment portfolio. These professionals monitor individual investments as well as overall industries and are active in the financial markets on a daily basis. The group is led by AFG’s chief investment officer, who reports directly to one of AFG’s Co-CEOs. Valuation techniques utilized by pricing services and prices obtained from external sources are reviewed by AFG’s internal investment professionals who are familiar with the securities being priced and the markets in which they trade to ensure the fair value determination is representative of an exit price. To validate the appropriateness of the prices obtained, these investment managers consider widely published indices (as benchmarks), recent trades, changes in interest rates, general economic conditions and the credit quality of the specific issuers. In addition, the Company communicates directly with the pricing services regarding the methods and assumptions used in pricing, including verifying, on a test basis, the inputs used by the service to value specific securities.

Assets and liabilities measured and carried at fair value in the financial statements are summarized below (in millions):

	Level 1		Level 2		Level 3		Total
December 31, 2018
Assets:
Available for sale (“AFS”) fixed maturities:
U.S. Government and government agencies	$	141	$	83	$	9	$	233
States, municipalities and political subdivisions	—		6,880		59		6,939
Foreign government	—		142		—		142
Residential MBS	—		2,547		197		2,744
Commercial MBS	—		864		56		920
Asset-backed securities	—		8,964		847		9,811
Corporate and other	28		19,184		1,996		21,208
Total AFS fixed maturities	169		38,664		3,164		41,997
Trading fixed maturities	9		96		—		105
Equity securities	1,410		68		336		1,814
Equity index call options	—		184		—		184
Assets of managed investment entities (“MIE”)	203		4,476		21		4,700
Variable annuity assets (separate accounts) (*)	—		557		—		557
Other assets — derivatives	—		16		—		16
Total assets accounted for at fair value	$	1,791	$	44,061	$	3,521	$	49,373
Liabilities:
Liabilities of managed investment entities	$	195	$	4,297	$	20	$	4,512
Derivatives in annuity benefits accumulated	—		—		2,720		2,720
Other liabilities — derivatives	—		49		—		49
Total liabilities accounted for at fair value	$	195	$	4,346	$	2,740	$	7,281
December 31, 2017
Assets:
Available for sale fixed maturities:
U.S. Government and government agencies	$	122	$	112	$	8	$	242
States, municipalities and political subdivisions	—		6,975		148		7,123
Foreign government	—		127		—		127
Residential MBS	—		3,105		122		3,227
Commercial MBS	—		926		36		962
Asset-backed securities	—		7,218		744		7,962
Corporate and other	30		17,662		1,044		18,736
Total AFS fixed maturities	152		36,125		2,102		38,379
Trading fixed maturities	44		304		—		348
Equity securities	1,411		86		165		1,662
Equity index call options	—		701		—		701
Assets of managed investment entities	307		4,572		23		4,902
Variable annuity assets (separate accounts) (*)	—		644		—		644
Other assets — derivatives	—		—		—		—
Total assets accounted for at fair value	$	1,914	$	42,432	$	2,290	$	46,636
Liabilities:
Liabilities of managed investment entities	$	293	$	4,372	$	22	$	4,687
Derivatives in annuity benefits accumulated	—		—		2,542		2,542
Other liabilities — derivatives	—		35		—		35
Total liabilities accounted for at fair value	$	293	$	4,407	$	2,564	$	7,264

 (*)   Variable annuity liabilities equal the fair value of variable annuity assets.

The transfers between Level 1 and Level 2 for the years ended December 31, 2018, 2017 and 2016 are reflected in the table below at fair value as of the end of the reporting period (dollars in millions):

	Level 2 To Level 1 Transfers									Level 1 To Level 2 Transfers
	# of Transfers			Fair Value						# of Transfers			Fair Value
	2018	2017	2016	2018		2017		2016		2018	2017	2016	2018		2017		2016
Perpetual preferred stocks	2	4	6	$	5	$	23	$	35	2	2	7	$	6	$	11	$	28
Common stocks	—	—	3	—		—		—		—	1	2	—		—		—

Transfers between Level 1 and Level 2 for all periods presented were a result of increases or decreases in observable trade activity.

Approximately 7% of the total assets carried at fair value on December 31, 2018, were Level 3 assets. Approximately 69% ($2.41 billion) of the Level 3 assets were priced using non-binding broker quotes, for which there is a lack of transparency as to the inputs used to determine fair value. Details as to the quantitative inputs are neither provided by the brokers nor otherwise reasonably obtainable by AFG.

Internally developed Level 3 asset fair values represent approximately $1.05 billion at December 31, 2018. Of this amount, approximately $590 million relates to fixed maturity securities that were priced using management’s best estimate of an appropriate credit spread over the treasury yield (of a similar duration) to discount future expected cash flows using a third party model. The credit spread applied by management is the significant unobservable input. For this group of approximately 100 securities, the average spread used was 585 basis points over the reference treasury yield and the spreads ranged from 131 basis points to 2,966 basis points (approximately 80% of the spreads were between 400 and 700 basis points). Had management used higher spreads, the fair value of this group of securities would have been lower. Conversely, if the spreads used were lower, the fair values would have been higher. For the remainder of the internally developed prices, any justifiable changes in unobservable inputs used to determine fair value would not have resulted in a material change in AFG’s financial position.

The derivatives embedded in AFG’s fixed-indexed and variable-indexed annuity liabilities are measured using a discounted cash flow approach and had a fair value of $2.72 billion at December 31, 2018. The following table presents information about the unobservable inputs used by management in determining fair value of these Level 3 liabilities. See Note F — “Derivatives.”

Unobservable Input	Range
Adjustment for insurance subsidiary’s credit risk	0.6% – 2.1% over the risk free rate
Risk margin for uncertainty in cash flows	0.73% reduction in the discount rate
Surrenders	3% – 23% of indexed account value
Partial surrenders	2% – 9% of indexed account value
Annuitizations	0.1% – 1% of indexed account value
Deaths	1.5% – 9.5% of indexed account value
Budgeted option costs	2.6% – 3.6% of indexed account value

The range of adjustments for insurance subsidiary’s credit risk is based on the Moody’s corporate A2 bond index and reflects credit spread variations across the yield curve. The range of projected surrender rates reflects the specific surrender charges and other features of AFG’s individual fixed-indexed and variable-indexed annuity products with an expected range of 7% to 11% in the majority of future calendar years (3% to 23% over all periods). Increasing the budgeted option cost or risk margin for uncertainty in cash flow assumptions in the table above would increase the fair value of the fixed-indexed and variable-indexed annuity embedded derivatives, while increasing any of the other unobservable inputs in the table above would decrease the fair value of the embedded derivatives.

Changes in balances of Level 3 financial assets and liabilities carried at fair value during 2018, 2017 and 2016 are presented below (in millions). The transfers into and out of Level 3 were due to changes in the availability of market observable inputs and $29 million of equity securities transferred into Level 3 in the first quarter of 2018 related to a small number of limited partnerships and similar investments carried at cost under the prior guidance that are carried at fair value through net earnings under new guidance adopted on January 1, 2018, as discussed in Note A — “Accounting Policies — Investments.” All transfers are reflected in the table at fair value as of the end of the reporting period.

				Total realized/unrealized gains (losses) included in
	Balance at December 31, 2017			Net earnings			Other comprehensive income (loss)			Purchases and issuances			Sales and settlements			Transfer into Level 3		Transfer out of Level 3			Balance at December 31, 2018
AFS fixed maturities:
U.S. government agency	$	8		$	—		$	—		$	—		$	—		$	1	$	—		$	9
State and municipal	148			—			(2		)	—			(3		)	—		(84		)	59
Residential MBS	122			(9		)	(4		)	—			(21		)	130		(21		)	197
Commercial MBS	36			—			—			20			—			—		—			56
Asset-backed securities	744			(3		)	(15		)	426			(248		)	82		(139		)	847
Corporate and other	1,044			(10		)	(18		)	1,221			(204		)	27		(64		)	1,996
Total AFS fixed maturities	2,102			(22		)	(39		)	1,667			(476		)	240		(308		)	3,164
Equity securities	165			9			—			155			(6		)	30		(17		)	336
Assets of MIE	23			(8		)	—			6			—			—		—			21
Total Level 3 assets	$	2,290		$	(21	)	$	(39	)	$	1,828		$	(482	)	$	270	$	(325	)	$	3,521
Embedded derivatives (a)	$	(2,542	)	$	204		$	—		$	(545	)	$	163		$	—	$	—		$	(2,720	)
Total Level 3 liabilities (b)	$	(2,542	)	$	204		$	—		$	(545	)	$	163		$	—	$	—		$	(2,720	)

(a) Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $44 million in 2018.

(b) As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

				Total realized/unrealized gains (losses) included in
	Balance at December 31, 2016			Net earnings			Other comprehensive income (loss)		Purchases and issuances			Sales and settlements			Transfer into Level 3		Transfer out of Level 3			Balance at December 31, 2017
AFS fixed maturities:
U.S. government agency	$	8		$	—		$	—	$	—		$	—		$	—	$	—		$	8
State and municipal	140			—			2		—			(2		)	10		(2		)	148
Residential MBS	190			(4		)	2		1			(40		)	44		(71		)	122
Commercial MBS	25			2			—		15			(10		)	4		—			36
Asset-backed securities	484			—			1		410			(132		)	202		(221		)	744
Corporate and other	712			(5		)	2		606			(237		)	29		(63		)	1,044
Total AFS fixed maturities	1,559			(7		)	7		1,032			(421		)	289		(357		)	2,102
Equity securities	174			(21		)	10		38			(16		)	—		(20		)	165
Assets of MIE	29			(11		)	—		9			—			—		(4		)	23
Total Level 3 assets	$	1,762		$	(39	)	$	17	$	1,079		$	(437	)	$	289	$	(381	)	$	2,290
Embedded derivatives (a)	$	(1,759	)	$	(589	)	$	—	$	(300	)	$	106		$	—	$	—		$	(2,542	)
Total Level 3 liabilities (b)	$	(1,759	)	$	(589	)	$	—	$	(300	)	$	106		$	—	$	—		$	(2,542	)

(a) Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $25 million in 2017.

(b) As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

				Total realized/unrealized gains (losses) included in
	Balance at December 31, 2015			Net earnings			Other comprehensive income (loss)			Purchases and issuances			Sales and settlements			Transfer into Level 3		Transfer out of Level 3			Balance at December 31, 2016
AFS fixed maturities:
U.S. government agency	$	15		$	(8	)	$	1		$	—		$	—		$	—	$	—		$	8
State and municipal	89			—			(4		)	57			(2		)	—		—			140
Residential MBS	224			(4		)	(2		)	8			(28		)	34		(42		)	190
Commercial MBS	39			(1		)	—			—			(7		)	—		(6		)	25
Asset-backed securities	470			(1		)	1			50			(52		)	60		(44		)	484
Corporate and other	633			—			(10		)	176			(100		)	30		(17		)	712
Total AFS fixed maturities	1,470			(14		)	(14		)	291			(189		)	124		(109		)	1,559
Equity securities	140			(12		)	35			44			(28		)	15		(20		)	174
Assets of MIE	26			(9		)	—			12			—			—		—			29
Total Level 3 assets	$	1,636		$	(35	)	$	21		$	347		$	(217	)	$	139	$	(129	)	$	1,762
Embedded derivatives (a)	$	(1,369	)	$	(211	)	$	—		$	(277	)	$	98		$	—	$	—		$	(1,759	)
Total Level 3 liabilities (b)	$	(1,369	)	$	(211	)	$	—		$	(277	)	$	98		$	—	$	—		$	(1,759	)

(a) Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $17 million in 2016.

(b) As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

Fair Value of Financial Instruments   The carrying value and fair value of financial instruments that are not carried at fair value in the financial statements at December 31 are summarized below (in millions):

	Carrying		Fair Value
	Value		Total		Level 1		Level 2		Level 3
2018
Financial assets:
Cash and cash equivalents	$	1,515	$	1,515	$	1,515	$	—	$	—
Mortgage loans	1,068		1,056		—		—		1,056
Policy loans	174		174		—		—		174
Total financial assets not accounted for at fair value	$	2,757	$	2,745	$	1,515	$	—	$	1,230
Financial liabilities:
Annuity benefits accumulated (*)	$	36,384	$	34,765	$	—	$	—	$	34,765
Long-term debt	1,302		1,231		—		1,228		3
Total financial liabilities not accounted for at fair value	$	37,686	$	35,996	$	—	$	1,228	$	34,768
2017
Financial assets:
Cash and cash equivalents	$	2,338	$	2,338	$	2,338	$	—	$	—
Mortgage loans	1,125		1,119		—		—		1,119
Policy loans	184		184		—		—		184
Total financial assets not accounted for at fair value	$	3,647	$	3,641	$	2,338	$	—	$	1,303
Financial liabilities:
Annuity benefits accumulated (*)	$	33,110	$	32,461	$	—	$	—	$	32,461
Long-term debt	1,301		1,354		—		1,351		3
Total financial liabilities not accounted for at fair value	$	34,411	$	33,815	$	—	$	1,351	$	32,464

(*) Excludes $232 million and $206 million of life contingent annuities in the payout phase at December 31, 2018 and 2017, respectively.

The carrying amount of cash and cash equivalents approximates fair value. Fair values for mortgage loans are estimated by discounting the future contractual cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings. The fair value of policy loans is estimated to approximate carrying value; policy loans have no defined maturity dates and are inseparable from insurance contracts. The fair value of annuity benefits was estimated based on expected cash flows discounted using forward interest rates adjusted for the Company’s credit risk and includes the impact of maintenance expenses and capital costs. Fair values of long-term debt are based primarily on quoted market prices.

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Investments

12 Months Ended

Dec. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Investments

Investments

Available for sale fixed maturities at December 31 consisted of the following (in millions):

	2018												2017
	Amortized Cost		Gross Unrealized					Net Unrealized			Fair Value		Amortized Cost		Gross Unrealized					Net Unrealized			Fair Value
			Gains		Losses										Gains		Losses
Fixed maturities:
U.S. Government and government agencies	$	235	$	1	$	(3	)	$	(2	)	$	233	$	244	$	1	$	(3	)	$	(2	)	$	242
States, municipalities and political subdivisions	6,825		169		(55		)	114			6,939		6,887		254		(18		)	236			7,123
Foreign government	140		2		—			2			142		124		3		—			3			127
Residential MBS	2,476		277		(9		)	268			2,744		2,884		349		(6		)	343			3,227
Commercial MBS	905		17		(2		)	15			920		927		36		(1		)	35			962
Asset-backed securities	9,781		130		(100		)	30			9,811		7,836		142		(16		)	126			7,962
Corporate and other	21,475		167		(434		)	(267		)	21,208		18,136		638		(38		)	600			18,736
Total fixed maturities	$	41,837	$	763	$	(603	)	$	160		$	41,997	$	37,038	$	1,423	$	(82	)	$	1,341		$	38,379

The non-credit related portion of other-than-temporary impairment charges is included in other comprehensive income. Cumulative non-credit charges taken for securities still owned at December 31, 2018 and December 31, 2017, respectively, were $140 million and $158 million. Gross unrealized gains on such securities at December 31, 2018 and December 31, 2017 were $119 million and $137 million, respectively. Gross unrealized losses on such securities at both December 31, 2018 and December 31, 2017 were $4 million. These amounts represent the non-credit other-than-temporary impairment charges recorded in AOCI adjusted for subsequent changes in fair values and relate primarily to residential MBS.

As discussed in Note A — “Accounting Policies — Investments,” AFG implemented new accounting guidance effective on January 1, 2018, which requires all equity securities previously classified as “available for sale” to be reported at fair value, with holding gains and losses recognized in net earnings. Equity securities reported at fair value consisted of the following at December 31, 2018 (in millions):

					Fair Value
					over (under)
	Actual Cost		Fair Value		Cost
Common stocks	$	1,241	$	1,148	$	(93	)
Perpetual preferred stocks	705		666		(39		)
Total equity securities carried at fair value	$	1,946	$	1,814	$	(132	)

The following tables show gross unrealized losses (dollars in millions) on available for sale fixed maturities and equity securities by investment category and length of time that individual securities have been in a continuous unrealized loss position at the following balance sheet dates.

	Less Than Twelve Months							Twelve Months or More
	Unrealized Loss			Fair Value		Fair Value as % of Cost		Unrealized Loss			Fair Value		Fair Value as % of Cost
December 31, 2018
Fixed maturities:
U.S. Government and government agencies	$	—		$	41	100	%	$	(3	)	$	120	98	%
States, municipalities and political subdivisions	(23		)	1,497		98	%	(32		)	902		97	%
Foreign government	—			18		100	%	—			4		100	%
Residential MBS	(4		)	279		99	%	(5		)	139		97	%
Commercial MBS	(1		)	147		99	%	(1		)	30		97	%
Asset-backed securities	(77		)	5,406		99	%	(23		)	629		96	%
Corporate and other	(306		)	10,378		97	%	(128		)	2,078		94	%
Total fixed maturities	$	(411	)	$	17,766	98	%	$	(192	)	$	3,902	95	%
December 31, 2017
Fixed maturities:
U.S. Government and government agencies	$	—		$	55	100	%	$	(3	)	$	123	98	%
States, municipalities and political subdivisions	(8		)	825		99	%	(10		)	431		98	%
Foreign government	—			4		100	%	—			—		—	%
Residential MBS	(1		)	118		99	%	(5		)	118		96	%
Commercial MBS	(1		)	67		99	%	—			—		—	%
Asset-backed securities	(7		)	1,195		99	%	(9		)	299		97	%
Corporate and other	(20		)	2,031		99	%	(18		)	603		97	%
Total fixed maturities	$	(37	)	$	4,295	99	%	$	(45	)	$	1,574	97	%
Equity securities:
Common stocks	$	(22	)	$	117	84	%	$	—		$	—	—	%
Perpetual preferred stocks	—			41		100	%	(1		)	13		93	%
Total equity securities	$	(22	)	$	158	88	%	$	(1	)	$	13	93	%

At December 31, 2018, the gross unrealized losses on fixed maturities of $603 million relate to 2,324 securities. Investment grade securities (as determined by nationally recognized rating agencies) represented approximately 92% of the gross unrealized loss and 96% of the fair value.

The determination of whether unrealized losses are other-than-temporary requires judgment based on subjective as well as objective factors.Factors considered and resources used by management include:

a) whether the unrealized loss is credit-driven or a result of changes in market interest rates,

b) the extent to which fair value is less than cost basis,

c) cash flow projections received from independent sources,

d) historical operating, balance sheet and cash flow data contained in issuer SEC filings and news releases,

e) near-term prospects for improvement in the issuer and/or its industry,

f) third party research and communications with industry specialists,

g) financial models and forecasts,

h) the continuity of interest payments, maintenance of investment grade ratings and hybrid nature of certain investments,

i) discussions with issuer management, and

j) ability and intent to hold the investment for a period of time sufficient to allow for anticipated recovery in fair value.

AFG analyzes its MBS securities for other-than-temporary impairment each quarter based upon expected future cash flows. Management estimates expected future cash flows based upon its knowledge of the MBS market, cash flow projections (which reflect loan to collateral values, subordination, vintage and geographic concentration) received from independent sources, implied cash flows inherent in security ratings and analysis of historical payment data. During 2018, 2017 and 2016, AFG recorded other-than-temporary impairment charges related to its residential MBS of $6 million, $1 million and $3 million, respectively.

In 2018, AFG recorded approximately $20 million in other-than-temporary impairment charges related to fixed maturities other than residential MBS, including $14 million related to aircraft financing. Other-than-temporary impairment charges on fixed maturities other than residential MBS were $19 million in 2017 and $35 million in 2016. In addition, AFG recorded $4 million in other-than-temporary impairment charges in 2017 on investments that are included in other investments on the balance sheet.

Management believes AFG will recover its cost basis in the securities with unrealized losses and that AFG has the ability to hold the securities until they recover in value and had no intent to sell them at December 31, 2018.

As discussed in Note A — “Accounting Policies — Investments,” effective January 1, 2018, all equity securities previously classified as “available for sale” are required to be carried at fair value through net earnings instead of accumulated other comprehensive income and therefore are no longer evaluated for other-than-temporary impairment. In 2017 and 2016, AFG recorded other-than-temporary impairment charges on equity securities classified as available for sale of $64 million and $93 million, respectively.

A progression of the credit portion of other-than-temporary impairments on fixed maturity securities for which the non-credit portion of an impairment has been recognized in other comprehensive income is shown below (in millions):

	2018			2017			2016
Balance at January 1	$	145		$	153		$	160
Additional credit impairments on:
Previously impaired securities	1			1			2
Securities without prior impairments	1			3			1
Reductions due to sales or redemptions	(5		)	(12		)	(10		)
Balance at December 31	$	142		$	145		$	153

The table below sets forth the scheduled maturities of available for sale fixed maturities as of December 31, 2018 (dollars in millions). Securities with sinking funds are reported at average maturity. Actual maturities may differ from contractual maturities because certain securities may be called or prepaid by the issuers.

	Amortized		Fair Value
	Cost		Amount		%
Maturity
One year or less	$	1,310	$	1,318	3	%
After one year through five years	8,521		8,554		20	%
After five years through ten years	14,235		14,044		34	%
After ten years	4,609		4,606		11	%
	28,675		28,522		68	%
ABS (average life of approximately 4.5 years)	9,781		9,811		23	%
MBS (average life of approximately 4.5 years)	3,381		3,664		9	%
Total	$	41,837	$	41,997	100	%

Certain risks are inherent in fixed maturity securities, including loss upon default, price volatility in reaction to changes in interest rates, and general market factors and risks associated with reinvestment of proceeds due to prepayments or redemptions in a period of declining interest rates.

There were no investments in individual issuers that exceeded 10% of shareholders’ equity at December 31, 2018 or 2017.

Net Unrealized Gain on Marketable Securities In addition to adjusting fixed maturity securities and equity securities classified as “available for sale” to fair value, GAAP requires that deferred policy acquisition costs and certain other balance sheet amounts related to annuity, long-term care and life businesses be adjusted to the extent that unrealized gains and losses from securities would result in adjustments to those balances had the unrealized gains or losses actually been realized. The following table shows (in millions) the components of the net unrealized gain on securities that is included in AOCI in AFG’s Balance Sheet.

	Pretax			Deferred Tax			Net
December 31, 2018
Net unrealized gain on:
Fixed maturities — annuity segment (a)	$	101		$	(21	)	$	80
Fixed maturities — all other	59			(13		)	46
Total fixed maturities	160			(34		)	126
Deferred policy acquisition costs — annuity segment	(42		)	9			(33		)
Annuity benefits accumulated	(14		)	3			(11		)
Unearned revenue	1			—			1
Total net unrealized gain on marketable securities	$	105		$	(22	)	$	83
December 31, 2017
Net unrealized gain on:
Fixed maturities — annuity segment (a)	$	1,082		$	(227	)	$	855
Fixed maturities — all other	259			(55		)	204
Total fixed maturities	1,341			(282		)	1,059
Equity securities (b)	279			(58		)	221
Total investments	1,620			(340		)	1,280
Deferred policy acquisition costs — annuity segment	(433		)	91			(342		)
Annuity benefits accumulated	(137		)	29			(108		)
Unearned revenue	13			(3		)	10
Total net unrealized gain on marketable securities	$	1,063		$	(223	)	$	840

(a) Net unrealized gains on fixed maturity investments supporting AFG’s annuity benefits accumulated.

(b) As discussed in Note A — “Accounting Policies — Investments,” effective January 1, 2018, all equity securities other than those accounted for under the equity method are carried at fair value through net earnings.

Net Investment Income   The following table shows (in millions) investment income earned and investment expenses incurred.

	2018			2017			2016
Investment income:
Fixed maturities	$	1,742		$	1,607		$	1,510
Equity securities:
Dividends	79			73			77
Change in fair value (*)	22			6			4
Equity in earnings of partnerships and similar investments	161			64			44
Other	112			102			81
Gross investment income	2,116			1,852			1,716
Investment expenses	(22		)	(21		)	(20		)
Net investment income	$	2,094		$	1,831		$	1,696

(*) As discussed in Note A — “Accounting Policies — Investments,” AFG adopted guidance in January 2018 that requires all equity securities other than those accounted for under the equity method to be reported at fair value with holding gains and losses recognized in net earnings. Although the change in the fair value of the majority of AFG’s equity securities is recorded in realized gains (losses) on securities, AFG records holding gains and losses in net investment income on equity securities classified as “trading” under the previous guidance and on a small portfolio of limited partnership and similar investments that do not qualify for the equity method of accounting.

Realized gains (losses) and changes in unrealized appreciation (depreciation) included in AOCI related to fixed maturity and equity security investments are summarized as follows (in millions):

	2018												2017
	Realized gains (losses)												Realized gains (losses)
	Before Impairments			Impairments			Total			Change in Unrealized			Before Impairments			Impairments			Total			Change in Unrealized
Fixed maturities	$	6		$	(26	)	$	(20	)	$	(1,181	)	$	17		$	(20	)	$	(3	)	$	532
Equity securities	(265		)	—			(265		)	—			70			(64		)	6			128
Mortgage loans and other investments	1			—			1			—			(6		)	(4		)	(10		)	—
Other (*)	11			7			18			502			(3		)	15			12			(219		)
Total pretax	(247		)	(19		)	(266		)	(679		)	78			(73		)	5			441
Tax effects:
Reclassify impact of U.S. corporate tax rate change	—			—			—			—			—			—			—			149
Other	52			4			56			143			(27		)	25			(2		)	(154		)
Total tax effects	52			4			56			143			(27		)	25			(2		)	(5		)
Net of tax	$	(195	)	$	(15	)	$	(210	)	$	(536	)	$	51		$	(48	)	$	3		$	436

	2016
	Realized gains (losses)
	Before Impairments			Impairments			Total			Change in Unrealized
Fixed maturities	$	36		$	(38	)	$	(2	)	$	90
Equity securities	106			(93		)	13			67
Other (*)	(7		)	15			8			(52		)
Total pretax	135			(116		)	19			105
Tax effects	(48		)	41			(7		)	(37		)
Noncontrolling interests	(2		)	3			1			4
Net of tax and noncontrolling interests	$	85		$	(72	)	$	13		$	72

(*) Primarily adjustments to deferred policy acquisition costs and reserves related to the annuity business.

As discussed in Note A — “Accounting Policies — Investments,” effective January 1, 2018, all equity securities other than those accounted for under the equity method are carried at fair value through net earnings. AFG recorded net holding gains (losses) on equity securities during 2018 on securities that were still owned at December 31, 2018 as follows (in millions):

	2018
Included in realized gains (losses)	$	(279	)
Included in net investment income	22
	$	(257	)

Gross realized gains and losses (excluding impairment write-downs and mark-to-market of derivatives) on available for sale fixed maturity investment transactions consisted of the following (in millions):

	2018			2017			2016
Fixed maturities:
Gross gains	$	22		$	43		$	55
Gross losses	(14		)	(20		)	(10		)

During 2017 and 2016, AFG recorded gross gains of $87 million and $110 million and gross losses of $17 million and $4 million, respectively, on available for sale equity securities.

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Derivatives

12 Months Ended

Dec. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives

Derivatives

As discussed under “Derivatives” in Note A— “Accounting Policies,” AFG uses derivatives in certain areas of its operations.

Derivatives That Do Not Qualify for Hedge Accounting   The following derivatives that do not qualify for hedge accounting under GAAP are included in AFG’s Balance Sheet at fair value (in millions):

		December 31, 2018				December 31, 2017
Derivative	Balance Sheet Line	Asset		Liability		Asset		Liability
MBS with embedded derivatives	Fixed maturities	$	109	$	—	$	105	$	—
Public company warrants	Equity securities	—		—		4		—
Fixed-indexed and variable-indexed annuities (embedded derivative)	Annuity benefits accumulated	—		2,720		—		2,542
Equity index call options	Equity index call options	184		—		701		—
Equity index put options	Other liabilities	—		1		—		—
Reinsurance contract (embedded derivative)	Other liabilities	—		2		—		4
		$	293	$	2,723	$	810	$	2,546

The MBS with embedded derivatives consist of primarily interest-only and principal-only MBS. AFG records the entire change in the fair value of these securities in earnings. These investments are part of AFG’s overall investment strategy and represent a small component of AFG’s overall investment portfolio.

Warrants to purchase shares of publicly traded companies, which represent a small component of AFG’s overall investment portfolio, are considered to be derivatives that are required to be carried at fair value through earnings.

AFG’s fixed-indexed and variable-indexed annuities provide policyholders with a crediting rate tied, in part, to the performance of an existing stock market or other financial index. AFG attempts to mitigate the risk in the index-based component of these products through the purchase and sale of call and put options on the appropriate index. AFG receives collateral from certain counterparties to support its purchased call option assets (net of collateral required under put option contracts with the same counterparties). This collateral ($103 million at December 31, 2018 and $389 million at December 31, 2017) is included in other assets in AFG’s Balance Sheet with an offsetting liability to return the collateral, which is included in other liabilities. AFG’s strategy is designed so that the change in the fair value of the call and put options will generally offset the economic change in the liabilities from the index participation. Both the index-based component of the annuities and the related call and put options are considered derivatives. Fluctuations in interest rates and the stock market, among other factors, can cause volatility in the periodic measurement of fair value of the embedded derivative that management believes can be inconsistent with the long-term economics of these products.

As discussed under “Reinsurance” in Note A, AFG has a reinsurance contract that is considered to contain an embedded derivative.

The following table summarizes the gains (losses) included in AFG’s Statement of Earnings for changes in the fair value of derivatives that do not qualify for hedge accounting for 2018, 2017 and 2016 (in millions):

Derivative	Statement of Earnings Line	2018			2017			2016
MBS with embedded derivatives	Realized gains (losses) on securities	$	(7	)	$	(6	)	$	(9	)
Public company warrants	Realized gains (losses) on securities	(3		)	—			—
Fixed-indexed and variable-indexed annuities (embedded derivative) (*)	Annuity benefits	204			(589		)	(211		)
Equity index call options	Annuity benefits	(298		)	494			141
Equity index put options	Annuity benefits	(1		)	—			—
Reinsurance contracts (embedded derivative)	Net investment income	2			(2		)	(1		)
		$	(103	)	$	(103	)	$	(80	)

(*) The change in fair value of the embedded derivative includes losses related to unlocking of actuarial assumptions of $44 million in 2018, $25 million in 2017 and $17 million in 2016.

Derivatives Designated and Qualifying as Cash Flow Hedges   As of December 31, 2018, AFG has entered into sixteen interest rate swaps that are designated and qualify as highly effective cash flow hedges to mitigate interest rate risk related to certain floating-rate securities included in AFG’s portfolio of fixed maturity securities. The purpose of each of these swaps is to effectively convert a portion of AFG’s floating-rate fixed maturity securities to fixed rates by offsetting the variability in cash flows attributable to changes in short-term LIBOR.

Under the terms of the swaps, AFG receives fixed-rate interest payments in exchange for variable interest payments based on short-term LIBOR. The notional amounts of the interest rate swaps generally decline over each swap’s respective life (the swaps expire between August 2019 and June 2030) in anticipation of the expected decline in AFG’s portfolio of fixed maturity securities with floating interest rates based on short-term LIBOR. The total outstanding notional amount of AFG’s interest rate swaps increased to $2.35 billion at December 31, 2018 compared to $1.58 billion at December 31, 2017, reflecting six new swaps with an aggregate notional amount at issuance of $911 million entered into in 2018, partially offset by the scheduled amortization discussed above. The fair value of the effective portion of the interest rate swaps in an asset position and included in other assets was $16 million at December 31, 2018 and less than $1 million at December 31, 2017. The fair value of the effective portion of interest rate swaps in a liability position and included in other liabilities was $46 million at December 31, 2018 and $31 million at December 31, 2017. The net unrealized gain or loss on cash flow hedges is included in AOCI, net of DPAC and deferred taxes. Amounts reclassified from AOCI (before DPAC and taxes) to net investment income were losses of $3 million in 2018 compared to income of $6 million in 2017 and $7 million in 2016. There was no ineffectiveness recorded in net earnings during these periods. A collateral receivable supporting these swaps of $135 million at December 31, 2018 and $70 million at December 31, 2017 is included in other assets in AFG’s Balance Sheet.

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Deferred Policy Acquisition Costs

12 Months Ended

Dec. 31, 2018

Deferred Policy Acquisition Costs Disclosures [Abstract]

Deferred Policy Acquisition Costs

Deferred Policy Acquisition Costs

A progression of deferred policy acquisition costs is presented below (in millions):

	P&C			Annuity and Run-off Long-term Care and Life
	Deferred			Deferred			Sales															Consolidated
	Costs			Costs			Inducements			PVFP			Subtotal			Unrealized (*)			Total			Total
Balance at December 31, 2015	$	226		$	1,018		$	119		$	55		$	1,192		$	(234	)	$	958		$	1,184
Additions	535			230			9			—			239			—			239			774
Amortization:
Periodic amortization	(520		)	(169		)	(24		)	(9		)	(202		)	—			(202		)	(722		)
Annuity unlocking	—			25			4			—			29			—			29			29
Included in realized gains	—			6			2			—			8			—			8			8
Foreign currency translation	(3		)	—			—			—			—			—			—			(3		)
Change in unrealized	—			—			—			—			—			(31		)	(31		)	(31		)
Balance at December 31, 2016	238			1,110			110			46			1,266			(265		)	1,001			1,239
Additions	588			225			4			—			229			—			229			817
Amortization:
Periodic amortization	(556		)	(161		)	(19		)	(8		)	(188		)	—			(188		)	(744		)
Annuity unlocking	—			34			6			1			41			—			41			41
Included in realized gains	—			9			1			—			10			—			10			10
Foreign currency translation	—			—			—			—			—			—			—			—
Other	—			—			—			10			10			—			10			10
Change in unrealized	—			—			—			—			—			(157		)	(157		)	(157		)
Balance at December 31, 2017	270			1,217			102			49			1,368			(422		)	946			1,216
Additions	675			263			2			—			265			—			265			940
Amortization:
Periodic amortization	(644		)	(238		)	(19		)	(7		)	(264		)	—			(264		)	(908		)
Annuity unlocking	—			29			—			—			29			—			29			29
Included in realized gains	—			14			1			—			15			—			15			15
Foreign currency translation	(2		)	—			—			—			—			—			—			(2		)
Change in unrealized	—			—			—			—			—			392			392			392
Balance at December 31, 2018	$	299		$	1,285		$	86		$	42		$	1,413		$	(30	)	$	1,383		$	1,682

(*) Adjustments to DPAC related to net unrealized gains/losses on securities and cash flow hedges.

The present value of future profits (“PVFP”) amounts in the table above are net of $148 million and $141 million of accumulated amortization at December 31, 2018 and 2017, respectively. During each of the next five years, the PVFP is expected to decrease at a rate of approximately one-eighth of the balance at the beginning of each respective year.

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Managed Investment Entities

12 Months Ended

Dec. 31, 2018

Variable Interest Entity, Primary Beneficiary, Does Not Hold Majority Voting Interest, Disclosures [Abstract]

Managed Investment Entities

Managed Investment Entities

AFG is the investment manager and its subsidiaries have investments ranging from 15.0% to 60.9% of the most subordinate debt tranche of fifteen collateralized loan obligation entities or “CLOs,” which are considered variable interest entities. AFG’s subsidiaries also own portions of the senior debt tranches of certain of these CLOs. Upon formation between 2004 and 2018, these entities issued securities in various senior and subordinate classes and invested the proceeds primarily in secured bank loans, which serve as collateral for the debt securities issued by each particular CLO. None of the collateral was purchased from AFG. AFG’s investments in the subordinate debt tranches of these entities receive residual income from the CLOs only after the CLOs pay expenses (including management fees to AFG) and interest on and returns of capital to senior levels of debt securities. There are no contractual requirements for AFG to provide additional funding for these entities. AFG has not provided and does not intend to provide any financial support to these entities.

AFG’s maximum exposure to economic loss on its CLOs is limited to its investment in the CLOs, which had an aggregate fair value of $188 million (including $125 million invested in the most subordinate tranches) at December 31, 2018, and $215 million at December 31, 2017.

In 2018, AFG formed a new CLO, which issued $463 million face amount of liabilities (including $31 million face amount purchased by subsidiaries of AFG). During 2018, AFG subsidiaries also purchased $7 million face amount of a senior debt tranche of an existing CLO for $7 million and received $45 million in sale and redemption proceeds from its CLO investments. In 2017, AFG formed two new CLOs, which issued an aggregate of $865 million face amount of liabilities (including $48 million face amount purchased by subsidiaries of AFG). During 2017, AFG subsidiaries also purchased $71 million face amount of senior debt and subordinate tranches of existing CLOs for $71 million and received $103 million in sale and redemption proceeds from its CLO investments. In 2016, AFG formed two new CLOs, which issued an aggregate of $866 million face amount of liabilities (including $64 million face amount purchased by subsidiaries of AFG). During 2016, AFG subsidiaries also purchased $24 million face amount of senior debt and subordinate tranches of existing CLOs for $17 million and received $115 million in sale and redemption proceeds from its CLO investments. In 2018 and 2017, one and two AFG CLOs, respectively, were substantially liquidated, as permitted by the CLO indentures.

The revenues and expenses of the CLOs are separately identified in AFG’s Statement of Earnings, after the elimination of management fees and earnings attributable to shareholders of AFG as measured by the change in the fair value of AFG’s investments in the CLOs. Selected financial information related to the CLOs is shown below (in millions):

	Year ended December 31,
	2018			2017			2016
Investment in CLO tranches	$	188		$	215		$	216
Gains (losses) on change in fair value of assets/liabilities (a):
Assets	(189		)	(8		)	131
Liabilities	168			20			(116		)
Management fees paid to AFG	16			18			17
CLO earnings attributable to AFG Shareholders (b)	7			23			37

(a) Included in revenues in AFG’s Statement of Earnings.

(b) Included in earnings before income taxes in AFG’s Statement of Earnings.

The aggregate unpaid principal balance of the CLOs’ fixed maturity investments exceeded the fair value of the investments by $232 million and $55 million at December 31, 2018 and 2017. The aggregate unpaid principal balance of the CLOs’ debt exceeded its carrying value by $241 million and $118 million at those dates. The CLO assets include loans with an aggregate fair value of $1 million at December 31, 2017, for which the CLOs are not accruing interest because the loans are in default (aggregate unpaid principal balance of $8 million; none at December 31, 2018).

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Goodwill and Other Intangibles

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangibles

Goodwill and Other Intangibles

Changes in the carrying value of goodwill during 2016, 2017 and 2018, by reporting segment, are presented in the following table (in millions):

	Property and Casualty		Annuity		Total
Balance at January 1, 2016, December 31, 2016 and December 31, 2017	$	168	$	31	$	199
Acquisition of subsidiary in 2018	8		—		8
Balance at December 31, 2018	$	176	$	31	$	207

Goodwill increased by $8 million in the fourth quarter of 2018 due to the purchase of ABAIS as discussed in Note B — “Acquisitions and Sale of Businesses.”

Included in other assets in AFG’s Balance Sheet is $54 million at December 31, 2018 and $26 million at December 31, 2017 of amortizable intangible assets related to property and casualty insurance acquisitions. These amounts are net of accumulated amortization of $39 million and $30 million, respectively. The increase in amortizable intangible assets in 2018 relates to the November 2018 acquisition of ABAIS (discussed in Note B — “Acquisitions and Sale of Businesses”) and a renewal rights intangible asset established in connection with the acquisition of a small property and casualty book of business in January 2018. Amortization of intangibles was $9 million in 2018 and $8 million in both 2017 and 2016. Future amortization of intangibles (weighted average amortization period of 7 years) is estimated to be $12 million per year in 2019 and 2020, $6 million in 2021, $4 million per year in 2022 and 2023 and $16 million thereafter.

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Long-Term Debt

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Long-Term Debt

Long-Term Debt

Long-term debt consisted of the following at December 31 (in millions):

	2018							2017
	Principal		Discount and Issue Costs			Carrying Value		Principal		Discount and Issue Costs			Carrying Value
Direct Senior Obligations of AFG:
4.50% Senior Notes due June 2047	$	590	$	(2	)	$	588	$	590	$	(2	)	$	588
3.50% Senior Notes due August 2026	425		(4		)	421		425		(5		)	420
Other	3		—			3		3		—			3
	1,018		(6		)	1,012		1,018		(7		)	1,011
Direct Subordinated Obligations of AFG:
6-1/4% Subordinated Debentures due September 2054	150		(5		)	145		150		(5		)	145
6% Subordinated Debentures due November 2055	150		(5		)	145		150		(5		)	145
	300		(10		)	290		300		(10		)	290
	$	1,318	$	(16	)	$	1,302	$	1,318	$	(17	)	$	1,301

AFG has no scheduled principal payments on its long-term debt in the next five years.

In June 2017, AFG issued $350 million in 4.50% Senior Notes due in 2047 at a price of 99.46%. The net proceeds of the offering were used to redeem AFG’s $230 million outstanding principal amount of 6-3/8% Senior Notes due June 2042 at par value and to redeem AFG’s $125 million outstanding principal amount of 5-3/4% Senior Notes due August 2042 at par value in June 2017 and August 2017, respectively.

In November 2017, AFG issued an additional $125 million of 3.50% Senior Notes due in 2026 at a price of 99.698% and $240 million of 4.50% Senior Notes due in 2047 at a price of 102.374%. The net proceeds of the offering were used to redeem AFG’s $350 million outstanding principal amount of 9-7/8% Senior Notes due in June 2019 for $388 million (including a make-whole premium of $38 million) in December 2017.

In August 2016, AFG issued $300 million in 3.50% Senior Notes due in 2026 at a price of 99.608%. The net proceeds of the offering were used to fund a portion of the November 2016 acquisition of the noncontrolling interest in NATL (discussed in Note B — “Acquisitions and Sale of Businesses”). At the acquisition date, the $18 million outstanding under NATL’s bank credit facility, including $6 million borrowed in September 2016, was repaid and the credit agreement was terminated.

To achieve a desired balance between fixed and variable rate debt, AFG entered into an interest rate swap in June 2015, which effectively converted its 9-7/8% Senior Notes to a floating rate of three-month LIBOR plus 8.099%. In December 2017, AFG settled the interest rate swap contemporaneously with the redemption of the 9-7/8% Senior Notes.

AFG can borrow up to $500 million under its revolving credit facility, which expires in June 2021. Amounts borrowed under this agreement bear interest at rates ranging from 1.00% to 1.875% (currently 1.375%) over LIBOR based on AFG’s credit rating. No amounts were borrowed under this facility at December 31, 2018 or December 31, 2017.

Cash interest payments on long-term debt were $59 million in 2018, $85 million in 2017 and $75 million in 2016. In 2017 and 2016, AFG received $2 million and $3 million, respectively, in interest under the interest rate swap discussed above.

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Shareholders' Equity

12 Months Ended

Dec. 31, 2018

Stockholders' Equity Note [Abstract]

Shareholders' Equity

Shareholders’ Equity

AFG is authorized to issue 12.5 million shares of Voting Preferred Stock and 12.5 million shares of Nonvoting Preferred Stock, each without par value.

Stock Incentive Plans   Under AFG’s stock incentive plans, employees of AFG and its subsidiaries are eligible to receive equity awards in the form of stock options, stock appreciation rights, restricted stock awards, restricted stock units and stock awards. At December 31, 2018, there were 7.0 million shares of AFG Common Stock reserved for issuance under AFG’s stock incentive plans.

The restricted Common Stock that AFG has granted generally vests over a three or four year period. Data relating to grants of restricted stock is presented below:

	Shares		Average Grant Date Fair Value
Outstanding at January 1, 2018	759,035		$	73.40
Granted	200,625		$	112.86
Vested	(86,177	)	$	56.89
Forfeited	(7,553	)	$	87.47
Outstanding at December 31, 2018	865,930		$	84.06

The total fair value of restricted stock that vested during 2018, 2017 and 2016 was $10 million, $14 million and $10 million, respectively.

AFG issued 45,804 shares of Common Stock (fair value of $115.49 per share) in the first quarter of 2018 and 47,826 shares (fair value of $96.13 per share) in the first quarter of 2017 under its Equity Bonus Plan.

AFG did not grant any stock options in 2018, 2017 or 2016. Options granted in years prior to 2016 have an exercise price equal to the market price of AFG Common Stock at the date of grant. Options generally become exercisable at the rate of 20% per year commencing one year after grant and expire ten years after the date of grant.

Data for stock options issued under AFG’s stock incentive plans is presented below:

	Shares		Average Exercise Price		Average Remaining Contractual Term	Aggregate Intrinsic Value (in millions)
Outstanding at January 1, 2018	3,467,340		$	45.80
Exercised	(778,270	)	$	37.66
Forfeited/Cancelled	(21,628	)	$	42.10
Outstanding at December 31, 2018	2,667,442		$	48.20	4.2 years	$	113
Options exercisable at December 31, 2018	2,253,003		$	45.95	3.9 years	$	100

The total intrinsic value of options exercised during 2018, 2017 and 2016 was $57 million, $65 million and $38 million, respectively. During 2018, 2017 and 2016, AFG received $29 million, $34 million and $32 million, respectively, in cash from the exercise of stock options. The total tax benefit related to the exercises was $9 million, $18 million and $11 million during those years, respectively.

Total compensation expense related to stock incentive plans of AFG and its subsidiaries for 2018, 2017 and 2016 was $23 million, $30 million and $28 million, respectively. AFG’s provision for income tax includes tax benefits of $13 million in 2018, $27 million in 2017 and $19 million in 2016 related to AFG’s stock incentive plans. At December 31, 2018, there was $3 million and $35 million of unrecognized compensation expense related to nonvested stock options and restricted stock awards, respectively. The nonvested stock options and restricted stock awards amounts are expected to be recognized over a weighted average of 1.0 year and 2.5 years, respectively.

Accumulated Other Comprehensive Income, Net of Tax (“AOCI”)   Comprehensive income is defined as all changes in shareholders’ equity except those arising from transactions with shareholders. Comprehensive income includes net earnings and other comprehensive income, which consists primarily of changes in net unrealized gains or losses on available for sale securities. The progression of the components of accumulated other comprehensive income follows (in millions):

				Other Comprehensive Income (Loss)
	AOCI Beginning Balance			Pretax			Tax			Net of tax			Attributable to noncontrolling interests			Attributable to shareholders			Other (c)			AOCI Ending Balance
Year ended December 31, 2018
Net unrealized gains (losses) on securities:
Unrealized holding losses on securities arising during the period				$	(689	)	$	145		$	(544	)	$	—		$	(544	)
Reclassification adjustment for realized (gains) losses included in net earnings (a)				10			(2		)	8			—			8
Total net unrealized gains (losses) on securities (b)	$	840		(679		)	143			(536		)	—			(536		)	$	(221	)	$	83
Net unrealized gains (losses) on cash flow hedges	(13		)	2			—			2			—			2			—			(11		)
Foreign currency translation adjustments	(6		)	(9		)	(1		)	(10		)	—			(10		)	—			(16		)
Pension and other postretirement plans adjustments	(8		)	—			—			—			—			—			—			(8		)
Total	$	813		$	(686	)	$	142		$	(544	)	$	—		$	(544	)	$	(221	)	$	48
Year ended December 31, 2017
Net unrealized gains on securities:
Unrealized holding gains on securities arising during the period				$	456		$	(159	)	$	297		$	—		$	297
Reclassification adjustment for realized (gains) losses included in net earnings (a)				(15		)	5			(10		)	—			(10		)
Total net unrealized gains on securities (b)	$	404		441			(154		)	287			—			287			$	149		$	840
Net unrealized losses on cash flow hedges	(7		)	(6		)	2			(4		)	—			(4		)	(2		)	(13		)
Foreign currency translation adjustments	(15		)	9			3			12			—			12			(3		)	(6		)
Pension and other postretirement plans adjustments	(7		)	1			—			1			—			1			(2		)	(8		)
Total	$	375		$	445		$	(149	)	$	296		$	—		$	296		$	142		$	813
Year ended December 31, 2016
Net unrealized gains on securities:
Unrealized holding gains on securities arising during the period				$	124		$	(44	)	$	80		$	(4	)	$	76
Reclassification adjustment for realized (gains) losses included in net earnings (a)				(19		)	7			(12		)	(1		)	(13		)
Total net unrealized gains on securities (b)	$	332		105			(37		)	68			(5		)	63			$	9		$	404
Net unrealized gains (losses) on cash flow hedges	1			(12		)	4			(8		)	—			(8		)	—			(7		)
Foreign currency translation adjustments	(22		)	6			1			7			—			7			—			(15		)
Pension and other postretirement plans adjustments	(7		)	—			—			—			—			—			—			(7		)
Total	$	304		$	99		$	(32	)	$	67		$	(5	)	$	62		$	9		$	375

(a)    The reclassification adjustment out of net unrealized gains on securities affected the following lines in AFG’s Statement of Earnings:

OCI component	Affected line in the statement of earnings
Pretax	Realized gains (losses) on securities
Tax	Provision for income taxes
Attributable to noncontrolling interests	Net earnings attributable to noncontrolling interests

(b) Includes net unrealized gains of $58 million at December 31, 2018 compared to net unrealized gains of $68 million and $52 million at December 31, 2017 and 2016, related to securities for which only the credit portion of an other-than-temporary impairment has been recorded in earnings.

(c) On January 1, 2018, AFG adopted new guidance that requires all equity securities other than those accounted for under the equity method to be reported at fair value with holding gains and losses recognized in net earnings. At the date of adoption, the $221 million net unrealized gain on equity securities classified as available for sale (with unrealized holding gains and losses reported in AOCI) under the prior guidance was reclassified from AOCI to retained earnings as the cumulative effect of an accounting change. Other also includes the December 2017 reclassification of $145 million stranded in AOCI from accounting for the Tax Cuts and Jobs Act of 2017 to retained earnings (see Note A — “Accounting Policies — Income Taxes”), the impact on AOCI of the December 2017 sale of redeemable noncontrolling interests in Neon and the November 2016 acquisition of the noncontrolling interest in NATL (see Note B — “Acquisitions and Sale of Businesses”).

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Income Taxes

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The following is a reconciliation of income taxes at the statutory rate (21% in 2018 and 35% in both 2017 and 2016) to the provision for income taxes as shown in AFG’s Statement of Earnings (dollars in millions):

	2018					2017					2016
	Amount			% of EBT		Amount			% of EBT		Amount			% of EBT
Earnings before income taxes (“EBT”)	$	639				$	724				$	787
Income taxes at statutory rate	$	134		21	%	$	253		35	%	$	275		35	%
Effect of:
Tax exempt interest	(13		)	(2	%)	(23		)	(3	%)	(24		)	(3	%)
Adjustment to prior year taxes	(8		)	(1	%)	(4		)	(1	%)	(2		)	—	%
Stock-based compensation	(8		)	(1	%)	(16		)	(2	%)	(9		)	(1	%)
Dividend received deduction	(4		)	(1	%)	(8		)	(1	%)	(7		)	(1	%)
Employee stock ownership plan dividend paid deduction	(3		)	(1	%)	(5		)	(1	%)	(2		)	—	%
Foreign operations	(2		)	—	%	21			3	%	5			—	%
Change in valuation allowance (excluding change in tax rate)	11			2	%	(7		)	(1	%)	52			7	%
Nondeductible expenses	7			1	%	6			1	%	7			1	%
Neon restructuring	—			—	%	(56		)	(8	%)	(111		)	(14	%)
Change in U.S corporate tax rate	—			—	%	83			11	%	—			—	%
Acquisition of noncontrolling interest in NATL	—			—	%	—			—	%	(66		)	(8	%)
Subsidiaries not in AFG’s tax return	—			—	%	—			—	%	3			—	%
Other	8			1	%	3			1	%	(2		)	(1	%)
Provision for income taxes as shown in the statement of earnings	$	122		19	%	$	247		34	%	$	119		15	%

The favorable impact of stock-based compensation on AFG’s effective tax rate in the year ended December 31, 2017 reflects the high volume of employee stock option exercises during that period and the increase in the market price of AFG Common Stock.

In January 2008, AFG paid $75 million in cash to acquire approximately 67% of Neon Underwriting Limited (“Neon”, formerly known as Marketform Group Limited), a United Kingdom-based Lloyd’s insurer. During 2012, AFG acquired the then-remaining shares of Neon that it did not already own for $17 million. AFG’s investment in Neon includes the cost of acquiring the company as well as additional capital provided to Neon since the date of acquisition.

In 2011, cumulative losses at Neon across multiple lines of business resulted in uncertainty concerning the realization of the deferred tax benefits associated with the losses. Consequently, AFG began maintaining a full valuation allowance against the deferred tax assets related to the Lloyd’s insurance business in 2011.

Approximately $14 million of the $21 million impact of “foreign operations” for 2017 in the table above relates to a reduction in the “foreign underwriting losses” deferred tax asset as a result of the sale of the noncontrolling interest in Neon. Since AFG maintains a full valuation allowance against the deferred tax assets related to Neon, this reduction in deferred tax assets was offset by a corresponding reduction in the valuation allowance and had no overall impact on AFG’s income tax expense or results of operations.

The changes in valuation allowance in the table above are primarily increases in the valuation allowance on tax benefits related to losses in the Neon Lloyd’s insurance business. The $61 million decrease in the valuation allowance in 2017 related to the change in the U.S. corporate tax rate is included in “Change in U.S. corporate tax rate” in table above.

In connection with the reorganization of the Neon Lloyd’s business, in December 2016, AFG undertook a restructuring that included the liquidation for tax purposes of the foreign subsidiary that is the parent of the Neon Lloyd’s operations, resulting in a taxable loss for U.S. tax purposes. AFG reported a $111 million tax benefit associated with this loss in the fourth quarter of 2016. Approximately $29 million of the $111 million tax benefit recorded in 2016 reduced current taxes payable for 2016, while the remaining tax benefit was received in 2017 from the carry-back of the tax-basis capital loss to offset capital gains in prior years. An additional loss associated with the 2016 restructuring was deferred under U.S. tax laws, resulting in an unrecognized potential tax benefit of $48 million at December 31, 2016. The sale of the noncontrolling interest in Neon resulted in the recognition of an additional tax benefit of $56 million in the fourth quarter of 2017, including the recognition of the deferred loss from the 2016 restructuring. Approximately $20 million of the $56 million tax benefit recorded in 2017 reduced current taxes payable for 2017. The majority of the remaining 2017 tax benefit is expected to be received in 2019 as a result of the filing of a refund claim in 2018 to carry back tax basis capital losses to offset prior year tax basis capital gains.

The Tax Cuts and Jobs Act of 2017 (“TCJA”), which was enacted on December 22, 2017, lowered the U.S corporate tax rate to 21% and made other widespread changes to the U.S. tax code effective in 2018. Because the TCJA was enacted in December 2017, AFG recorded the $83 million decrease in its net deferred tax asset resulting from the changes in the tax code (primarily the lower corporate tax rate applicable to 2018 and future years) in the fourth quarter of 2017.

In addition to the lower U.S. corporate tax rate, the TCJA implemented a new global minimum tax on income earned by foreign subsidiaries of U.S.-based entities known as the Global Intangible Low-taxed Income (“GILTI”) provision. Since almost all of AFG’s earnings are taxable based on U.S. tax rates, the GILTI is not expected to be material to AFG’s results of operations and will be recorded in the period that any tax arises.

At the time it was enacted, the TCJA was subject to further clarification and interpretation by the U.S. Treasury Department and the Internal Revenue Service. For example, the TCJA changed the way that companies calculate their insurance claims and reserves for tax purposes, including revaluing those tax basis liabilities as of January 1, 2018, based on a methodology and discount factors that had not been published. The resulting transitional deferred tax liability (taxes payable over eight years under the TCJA) and offsetting increase in AFG’s insurance claims and reserves deferred tax assets, were recorded at December 31, 2017 using reasonable estimates based on available information and were considered provisional in accordance with Securities and Exchange Commission Staff Accounting Bulletin No. 118 (“SAB 118”). Because the established transition liability was completely offset by an increase in related deferred tax assets, the adjustment to the final amount when the factors were published in 2018 did not impact AFG’s effective tax rate. In accordance with SAB 118, the insurance claims and reserves transitional deferred tax liability (and offsetting adjustment to the related deferred tax assets) and all other changes in deferred taxes resulting from clarification and interpretation of the TCJA were recorded in 2018 in the period in which the guidance was published and did not have a material impact on AFG’s effective tax rate. As a result, AFG’s implementation of the TCJA is complete as of December 31, 2018.

As discussed in Note B — “Acquisitions and Sale of Businesses,” AFG acquired the noncontrolling interest in NATL in November 2016. This transaction allowed NATL and its subsidiaries to become members of the AFG consolidated tax group, which resulted in a tax benefit of $66 million to AFG during the fourth quarter of 2016.

Excluding the tax benefit related to the Neon restructuring and the impact of the change in the U.S. corporate tax rate, AFG’s effective tax rate for the year ended December 31, 2017 was 31%. Excluding a $65 million charge related to the exit of certain lines of business within Neon and the tax benefits related to the acquisition of the noncontrolling interest in NATL and the Neon restructuring, AFG’s effective tax rate for the year ended December 31, 2016 was 35%.

AFG’s 2012 — 2018 tax years remain subject to examination by the IRS.

Total earnings before income taxes include losses subject to tax in foreign jurisdictions of $69 million in 2018, $58 million in 2017 and $160 million in 2016, primarily related to the Neon Lloyd’s operations.

The total income tax provision (credit) consists of (in millions):

	2018			2017		2016
Current taxes:
Federal	$	196		$	153	$	299
State	8			6		12
Deferred taxes:
Federal	(82		)	5		(192		)
Impact of change in U.S. corporate tax rate	—			83		—
Total Federal deferred taxes	(82		)	88		(192		)
Provision for income taxes	$	122		$	247	$	119

For income tax purposes, AFG and its subsidiaries had the following carryforwards available at December 31, 2018 (in millions):

	Expiring	Amount
Operating Loss – U.S.	2019 - 2022	$	112
Operating Loss – United Kingdom	indefinite	215		(*)

(*) £168 million

Deferred income tax assets and liabilities reflect temporary differences between the carrying amounts of assets and liabilities recognized for financial reporting purposes and the amounts recognized for tax purposes. The significant components of deferred tax assets and liabilities included in AFG’s Balance Sheet at December 31 were as follows (in millions):

	2018									2017
	Excluding Unrealized Gains			Impact of Unrealized Gains			Total			Excluding Unrealized Gains			Impact of Unrealized Gains			Total
Deferred tax assets:
Federal net operating loss carryforwards	$	23		$	—		$	23		$	27		$	—		$	27
Foreign underwriting losses	93			—			93			80			—			80
Capital loss carryforwards	—			—			—			32			—			32
Insurance claims and reserves	740			3			743			665			29			694
Employee benefits	88			—			88			84			—			84
Other, net	44			—			44			48			(3		)	45
Total deferred tax assets before valuation allowance	988			3			991			936			26			962
Valuation allowance against deferred tax assets	(119		)	—			(119		)	(109		)	—			(109		)
Total deferred tax assets	869			3			872			827			26			853
Deferred tax liabilities:
Investment securities	(36		)	(34		)	(70		)	(1		)	(340		)	(341		)
Deferred policy acquisition costs	(300		)	9			(291		)	(293		)	91			(202		)
Insurance claims and reserves transition liability	(110		)	—			(110		)	(128		)	—			(128		)
Real estate, property and equipment	(36		)	—			(36		)	(35		)	—			(35		)
Total deferred tax liabilities	(482		)	(25		)	(507		)	(457		)	(249		)	(706		)
Net deferred tax asset (liability)	$	387		$	(22	)	$	365		$	370		$	(223	)	$	147

AFG’s net deferred tax asset at December 31, 2018 and 2017 is included in other assets in AFG’s Balance Sheet. The increase in AFG’s net deferred tax asset at December 31, 2018 compared to December 31, 2017 reflects significantly lower pretax unrealized gains on securities.

The likelihood of realizing deferred tax assets is reviewed periodically; any adjustments required to the valuation allowance are made in the period during which developments requiring an adjustment become known.

“Foreign underwriting losses” in the table above include the net operating loss carryforward and other deferred tax assets related to the Neon Lloyd’s insurance business. Due to uncertainty concerning the realization of the deferred tax benefits associated with these losses, AFG maintains a full valuation allowance of $93 million against these deferred tax assets at December 31, 2018. In addition to the valuation allowance related to the Neon Lloyd’s insurance business, the gross deferred tax asset has also been reduced by a $23 million valuation allowance related to AFG’s net operating loss carryforwards (“NOL”) subject to the separate return limitation year (“SRLY”) tax rules. A SRLY NOL can be used only by the entity that created it and only in years that both it and the consolidated group have taxable income. Approximately $19 million of AFG’s SRLY NOLs expired unutilized at December 31, 2018. Since AFG maintains a full valuation allowance against its SRLY NOLs, the expiration of these loss carryforwards was offset by corresponding reduction in the valuation allowance and had no overall impact on AFG’s income tax expense or results of operations.

AFG increased its liability for uncertain tax positions by $1 million in 2015 due to uncertainty in state taxation of its surplus lines insurance subsidiaries. In 2017, this uncertainty was resolved, resulting in total tax payments of less than $1 million.

A progression of the liability for uncertain tax positions, excluding interest and penalties, follows (in millions):

	2018		2017			2016
Balance at January 1	$	—	$	1		$	1
Additions for tax positions of prior years	—		—			—
Reductions for tax positions of prior years	—		—			—
Additions for tax positions of current year	—		—			—
Settlements	—		(1		)	—
Balance at December 31	$	—	$	—		$	1

The total unrecognized tax benefits and related interest and penalties that, if recognized, would impact the effective tax rate is less than $1 million at December 31, 2018 and December 31, 2017. AFG’s provision for income taxes in 2018, 2017 and 2016 included interest expense related to unrecognized tax benefits of less than $1 million in each year (net of federal benefit or expense). There was no liability for interest related to unrecognized tax benefits at December 31, 2018. AFG’s liability for interest related to unrecognized tax benefits was less than $1 million at December 31, 2017 (net of federal benefit). AFG’s provision for income taxes in 2018, 2017 and 2016 included penalties of less than $1 million in each year. AFG’s liability for penalties related to unrecognized tax benefits was less than $1 million at December 31, 2018 and December 31, 2017.

Cash payments for income taxes, net of refunds, were $156 million, $194 million and $308 million for 2018, 2017 and 2016, respectively.

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Contingencies

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Contingencies

Contingencies

Establishing property and casualty insurance reserves for claims related to environmental exposures, asbestos and other mass tort claims is subject to uncertainties that are significantly greater than those presented by other types of claims. For this group of claims, traditional actuarial techniques that rely on historical loss development trends cannot be used and a range of reasonably possible losses cannot be estimated. In addition, accruals (included in other liabilities) have been recorded for various environmental and occupational injury and disease claims and other contingencies arising out of the railroad operations disposed of by American Premier’s predecessor, Penn Central Transportation Company (“PCTC”) and its subsidiaries, prior to its bankruptcy reorganization in 1978 and certain manufacturing operations disposed of by American Premier and Great American Financial Resources, Inc. (“GAFRI”).

AFG completed an in-depth internal review of its asbestos and environmental (“A&E”) exposures in the third quarter of 2018. The review resulted in special A&E charges of $18 million for the property and casualty group and $9 million for the former railroad and manufacturing operations. AFG completed a comprehensive external study of its A&E exposures in the third quarter of 2017 with the aid of specialty actuarial, engineering and consulting firms and outside counsel. The study resulted in special A&E charges of $89 million for the property and casualty group and $24 million for the former railroad and manufacturing operations. AFG completed an in-depth internal review of its A&E exposures in the third quarter of 2016. The review resulted in special A&E charges of $36 million for the property and casualty group and $5 million for the former railroad and manufacturing operations.

The property and casualty group’s liability for A&E reserves was $524 million at December 31, 2018; related recoverables from reinsurers (net of allowances for doubtful accounts) at that date were $129 million.

At December 31, 2018, American Premier and its subsidiaries had liabilities for environmental and personal injury claims and other contingencies aggregating $83 million. The environmental claims consist of a number of proceedings and claims seeking to impose responsibility for hazardous waste remediation costs related to certain sites formerly owned or operated by the railroad and manufacturing operations. Remediation costs are difficult to estimate for a number of reasons, including the number and financial resources of other potentially responsible parties, the range of costs for remediation alternatives, changing technology and the time period over which these matters develop. The personal injury claims and other contingencies include pending and expected claims, primarily by former employees of PCTC, for injury or disease allegedly caused by exposure to excessive noise, asbestos or other substances in the workplace and other labor disputes.

At December 31, 2018, GAFRI had a liability of $8 million for environmental costs and certain other matters associated with the sales of its former manufacturing operations.

In December 2015, AFG completed the sale of substantially all of its run-off long-term care insurance business to HC2 Holdings, Inc. (“HC2”). In connection with obtaining regulatory approval for the transaction, AFG agreed to provide up to an aggregate of $35 million of capital support for the insurance companies, on an as-needed basis to maintain specified surplus levels, subject to immediate reimbursement by HC2 through a five-year capital maintenance agreement expiring in 2020.

While management believes AFG has recorded adequate reserves for the items discussed above, the outcome is uncertain and could result in liabilities that may vary from amounts AFG has currently recorded. Such amounts could have a material effect on AFG’s future results of operations and financial condition.

In addition, AFG and its subsidiaries are involved in litigation from time to time, generally arising in the ordinary course of business. This litigation may include, but is not limited to, general commercial disputes, lawsuits brought by policyholders, employment matters, reinsurance collection matters and actions challenging certain business practices of insurance subsidiaries. None of these matters are expected to have a material adverse impact on AFG’s results of operations or financial condition.

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Quarterly Operating Results (Unaudited)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Quarterly Operating Results (Unaudited)

Quarterly Operating Results (Unaudited)

The operations of certain AFG business segments are seasonal in nature. While insurance premiums are recognized on a relatively level basis, claim losses related to adverse weather (snow, hail, hurricanes, severe storms, tornadoes, etc.) may be seasonal. The profitability of AFG’s crop insurance business is primarily recognized during the second half of the year as crop prices and yields are determined. Quarterly results necessarily rely heavily on estimates. These estimates and certain other factors, such as the discretionary sales of assets, cause the quarterly results not to be necessarily indicative of results for longer periods of time.

The following are quarterly results of consolidated operations for the two years ended December 31, 2018 (in millions, except per share amounts). Quarterly earnings per share do not add to year-to-date amounts due to changes in shares outstanding.

	1st Quarter		2nd Quarter		3rd Quarter		4th Quarter			Total Year
2018
Revenues	$	1,619	$	1,833	$	2,008	$	1,690		$	7,150
Net earnings (losses), including noncontrolling interests	141		208		203		(35		)	517
Net earnings (losses) attributable to shareholders	145		210		204		(29		)	530
Earnings (losses) attributable to shareholders per Common Share:
Basic	$	1.64	$	2.36	$	2.30	$	(0.33	)	$	5.95
Diluted	1.60		2.31		2.26		(0.33		)	5.85
Average number of Common Shares:
Basic	88.6		89.0		89.1		89.3			89.0
Diluted	90.4		90.7		90.7		89.3			90.6
2017
Revenues	$	1,576	$	1,646	$	1,835	$	1,808		$	6,865
Net earnings, including noncontrolling interests	155		145		11		166			477
Net earnings attributable to shareholders	153		145		11		166			475
Earnings attributable to shareholders per Common Share:
Basic	$	1.76	$	1.64	$	0.13	$	1.88		$	5.40
Diluted	1.72		1.61		0.13		1.84			5.28
Average number of Common Shares:
Basic	87.2		87.8		88.1		88.2			87.8
Diluted	89.3		89.8		90.0		90.1			89.8

Pretax realized gains on subsidiaries and securities (including other-than-temporary impairments), favorable (adverse) prior year development of AFG’s liability for losses and loss adjustment expenses (“LAE”) and the impact of derivatives related to fixed-indexed and variable-indexed annuities (“FIAs”) were as follows (in millions):

	1st Quarter			2nd Quarter			3rd Quarter			4th Quarter			Total Year
Realized Gains (Losses) on Securities and Subsidiaries
2018 – change in fair value of equity securities	$	(95	)	$	23		$	33		$	(223	)	$	(262	)
2018 – other realized gains (losses)	2			8			1			(15		)	(4		)
2017	3			8			(12		)	6			5
Prior Year Development Favorable (Adverse)
2018	$	56		$	44		$	31		$	61		$	192
2017	28			22			(52		)	66			64
Impact of Derivatives related to FIAs Favorable (Adverse)
2018	$	13		$	3		$	(2	)	$	(47	)	$	(33	)
2017	(2		)	(16		)	(4		)	(11		)	(33		)

As discussed in Note A — “Accounting Policies — Investments” and Note E — “Investments,” effective January 1, 2018, all equity securities other than those accounted for under the equity method are carried at fair value through net earnings. Realized gains (losses) on securities for the fourth quarter and full-year 2018 includes net holding losses on equity securities that were still owned at December 31, 2018 of $228 million and $279 million, respectively. Under the prior guidance, these holding losses would have been recorded in AOCI (with the exception of any impairment charge that may have been recorded).

Prior year development in the third quarters of 2018 and 2017 includes pretax special charges of $18 million and $89 million, respectively, to strengthen property and casualty insurance A&E reserves. As a result of the Neon reinsurance to close agreement discussed in Note O — “Insurance,” Neon recorded $42 million in favorable development in the fourth quarter of 2017, of which $24 million related to its ongoing lines of business and $18 million related to its exited lines of business.

FIAs provide policyholders with a crediting rate tied, in part, to the performance of an existing stock market or other financial index. AFG attempts to mitigate the risk in the index-based component of these products through the purchase and sale of call and put options on the appropriate index. AFG’s strategy is designed so that the change in the fair value of the call and put options will generally offset the economic change in the liabilities from the index participation. Both the index-based component of the annuities and the related call and put options are considered derivatives that must be marked-to-market through earnings each period. Fluctuations in interest rates and the stock market, among other factors, can cause volatility in the periodic measurement of fair value of the embedded derivative that management believes can be inconsistent with the long-term economics of these products. In the table above, the impact of changes in the fair value of the derivatives related to FIAs is presented net of an estimate of the related acceleration/deceleration of the amortization of deferred policy acquisition costs and deferred sales inducements.

The vast majority of AFG’s FIAs are indexed to the S&P 500, which decreased 14% in the fourth quarter of 2018. This poor stock market performance adversely impacted AFG’s earnings before income taxes from its annuity operations for the fourth quarter of 2018 beyond the impact on derivatives related to FIAs by $30 million, particularly related to FIAs with guaranteed withdrawal benefits.

AFG recorded net charges as a result of updating (unlocking) actuarial assumptions underlying its annuity operations of $27 million in the second quarter of 2018, $4 million in the fourth quarter of 2018 and $3 million in the fourth quarter of 2017.

AFG’s property and casualty operations recorded catastrophe losses totaling $103 million in 2018 (primarily from Hurricanes Florence and Michael and wildfires in California). Catastrophe losses for 2017 totaled $140 million, including $107 million in the third quarter (primarily from Hurricanes Harvey, Irma and Maria and earthquakes in Mexico).

Results include pretax gains (included in other income) of $13 million from the sale of a hotel in the first quarter of 2017.

Results for the third quarter of 2018 and 2017 include pretax special charges of $9 million and $24 million, respectively, to strengthen reserves for A&E exposures related to AFG’s former railroad and manufacturing operations.

In 2017, AFG recorded pretax losses on the retirement of debt of $7 million in the second quarter, $4 million in the third quarter and $40 million in the fourth quarter.

Net earnings in the fourth quarter of 2017 includes $56 million in tax benefits related to the Neon restructuring. See Note L— “Income Taxes.”

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Insurance

12 Months Ended

Dec. 31, 2018

Insurance [Abstract]

Insurance

Insurance

Cash and securities owned by U.S.-based insurance subsidiaries, having a carrying value of approximately $1.06 billion at December 31, 2018, were on deposit as required by regulatory authorities. In addition, $118 million was on deposit in support of AFG’s underwriting activities at Lloyd’s. At December 31, 2018, AFG and its subsidiaries had $296 million in undrawn letters of credit (none of which was collateralized) supporting the underwriting capacity of its U.K.-based Lloyd’s insurer, Neon.

Property and Casualty Insurance Reserves Estimating the liability for unpaid losses and loss adjustment expenses (“LAE”) is inherently judgmental and is influenced by factors that are subject to significant variation. Determining the liability is a complex process incorporating input from many areas of the Company including actuarial, underwriting, pricing, claims and operations management.

The process used to determine the total reserve for liabilities involves estimating the ultimate incurred losses and LAE, adjusted for amounts already paid on the claims. The IBNR reserve is derived by first estimating the ultimate unpaid reserve liability and subtracting case reserves for loss and LAE.

In determining management’s best estimate of the ultimate liability, management (with the assistance of Company actuaries) considers items such as the effect of inflation on medical, hospitalization, material, repair and replacement costs, the nature and maturity of lines of insurance, general economic trends and the legal environment. In addition, historical trends adjusted for changes in underwriting standards, policy provisions, product mix and other factors are analyzed using actuarial reserve development techniques. Weighing all of the factors, the management team determines a single or “point” estimate that it records as its best estimate of the ultimate liability. Ranges of loss reserves are not developed by Company actuaries. This reserve analysis and review is completed each quarter and for almost every business within AFG’s property and casualty insurance sub-segments.

Each review includes in-depth analysis of several hundred subdivisions of the business, employing multiple actuarial techniques. For each subdivision, actuaries use informed, professional judgment to adjust these techniques as necessary to respond to specific conditions in the data or within the business.

Some of the standard actuarial methods employed for the quarterly reserve analysis may include (but may not be limited to):

• Case Incurred Development Method

• Paid Development Method

• Bornhuetter-Ferguson Method

• Incremental Paid LAE to Paid Loss Methods

Management believes that each method has particular strengths and weaknesses and that no single estimation method is most accurate in all situations. When applied to a particular group of claims, the relative strengths and weaknesses of each method can change over time based on the facts and circumstances. Ultimately, the estimation methods chosen are those which management believes produce the most reliable indication for the particular liabilities under review.

The period of time from the occurrence of a loss through the settlement of the liability is referred to as the “tail”. Generally, the same actuarial methods are considered for both short-tail and long-tail lines of business because most of them work properly for both. The methods are designed to incorporate the effects of the differing length of time to settle particular claims. For short-tail lines, management tends to give more weight to the Case Incurred and Paid Development methods, although the various methods tend to produce similar results. For long-tail lines, more judgment is involved, and more weight may be given to the Bornhuetter-Ferguson method. Liability claims for long-tail lines are more susceptible to litigation and can be significantly affected by changing contract interpretation and the legal environment. Therefore, the estimation of loss reserves for these classes is more complex and subject to a higher degree of variability.

The level of detail in which data is analyzed varies among the different lines of business. Data is generally analyzed by major product or by coverage within product, using countrywide data; however, in some situations, data may be reviewed by state or region. Appropriate segmentation of the data is determined based on data credibility, homogeneity of development patterns, mix of business, and other actuarial considerations.

Supplementary statistical information is also reviewed to determine which methods are most appropriate to use or if adjustments are needed to particular methods. Such information includes:

• Open and closed claim counts

• Average case reserves and average incurred on open claims

• Closure rates and statistics related to closed and open claim percentages

• Average closed claim severity

• Ultimate claim severity

• Reported loss ratios

• Projected ultimate loss ratios

• Loss payment patterns

Within each business, results of individual methods are reviewed, supplementary statistical information is analyzed, and data from underwriting, operating and claim management are considered in deriving management’s best estimate of the ultimate liability. This estimate may be the result of one method, a weighted average of several methods, or a judgmental selection as the management team determines is appropriate.

The liability for losses and LAE for a very limited number of claims with long-term scheduled payments under certain workers’ compensation policies has been discounted at 4.5% at both December 31, 2018 and 2017, which represents an approximation of long-term investment yields. Because of the limited amount of claims involved, the net impact of discounting did not materially impact AFG’s total liability for unpaid losses and loss adjustment expenses (net reductions from discounting of $13 million and $15 million at December 31, 2018 and 2017, respectively).

The following table provides an analysis of changes in the liability for losses and loss adjustment expenses over the past three years (in millions):

	2018			2017			2016
Balance at beginning of period	$	9,678		$	8,563		$	8,127
Less reinsurance recoverables, net of allowance	2,957			2,302			2,201
Net liability at beginning of period	6,721			6,261			5,926
Provision for losses and LAE occurring in the current year	3,195			3,019			2,730
Net increase (decrease) in the provision for claims of prior years:
Special A&E charges	18			89			36
Neon exited lines charge	—			(18		)	57
Other	(210		)	(135		)	(61		)
Total losses and LAE incurred	3,003			2,955			2,762
Payments for losses and LAE of:
Current year	(963		)	(942		)	(841		)
Prior years	(1,639		)	(1,586		)	(1,512		)
Total payments	(2,602		)	(2,528		)	(2,353		)
Reserves of businesses disposed (*)	(319		)	—			(40		)
Foreign currency translation and other	(4		)	33			(34		)
Net liability at end of period	6,799			6,721			6,261
Add back reinsurance recoverables, net of allowance	2,942			2,957			2,302
Gross unpaid losses and LAE included in the balance sheet	$	9,741		$	9,678		$	8,563

(*) Reflects the reinsurance to close transactions at Neon (discussed below).

The net decrease in the provision for claims of prior years in 2018 reflects (i) lower than expected losses in the crop business and lower than expected claim severity at National Interstate (within the Property and transportation sub-segment), (ii) lower than anticipated claim severity in the workers’ compensation businesses, lower than expected emergence in assumed 2017 property catastrophe losses at Neon and lower than expected claim severity in the executive liability business (within the Specialty casualty sub-segment) and (iii) lower than expected claim frequency and severity in the surety business, lower than expected claim severity in the fidelity business and lower than expected claim frequency in run-off businesses (within the Specialty financial sub-segment). This favorable development was partially offset by (i) the $18 million special charge to increase asbestos and environmental reserves and (ii) higher than expected claim frequency and severity in the Singapore branch and aviation operations (within the Property and transportation sub-segment).

The net decrease in the provision for claims of prior years in 2017 reflects (i) lower than expected losses in the crop and equine businesses and lower than expected claim severity in the property and inland marine and transportation businesses (all within the Property and transportation sub-segment), (ii) favorable reserve development of $18 million on Neon’s exited lines, as well as additional favorable development on ongoing lines of business within Neon, recorded in connection with the reinsurance to close agreement entered into in December 2017 for the 2015 and prior years of account, lower than anticipated claim severity in the workers’ compensation businesses and lower than expected losses in the executive liability business (all within the Specialty casualty sub-segment) and (iii) lower than anticipated claim severity in the fidelity business and lower than expected claim frequency and severity in the surety business (both within the Specialty financial sub-segment). This favorable development was partially offset by (i) the $89 million special charge to increase asbestos and environmental reserves, (ii) higher than expected claim frequency and severity in the ocean marine business (within the Property and transportation sub-segment), (iii) higher than anticipated claim severity in the targeted markets and general liability businesses and higher than anticipated severity in New York contractor claims (all within the Specialty casualty sub-segment) and (iv) a charge to adjust to the deferred gain on the retroactive reinsurance transaction entered into in connection with the sale of businesses in 1998 (included in Other specialty sub-segment).

The net increase in the provision for claims of prior years in 2016 reflects (i) the $36 million special charge to increase asbestos and environmental reserves, (ii) reserve strengthening at National Interstate and higher than expected claim frequency in the ocean marine business (within the Property and transportation sub-segment), (iii) adverse reserve development at Neon, higher than anticipated severity in New York contractor claims, higher than anticipated claim frequency and severity in general liability insurance and higher than expected claim frequency and severity in the targeted markets business (within the Specialty casualty sub-segment) and (iv) the $57 million special charge to increase loss reserves related to Neon’s exit of its UK and international medical malpractice and general liability lines of business. This adverse development was partially offset by (i) lower than expected losses in the crop business and lower than expected claim severity in the property and inland marine and trucking businesses (all within the Property and transportation sub-segment), (ii) lower than anticipated claim frequency and severity in workers’ compensation business, lower than expected claim severity in directors and officers liability insurance and lower than expected claim frequency and severity in excess liability business (all within the Specialty casualty sub-segment) and (iii) lower than anticipated claim severity in the fidelity and crime business, lower than expected claim frequency and severity in the surety business and lower than anticipated claim frequency in the financial institutions business (within the Specialty financial sub-segment).

In December 2017, the Neon Lloyd’s syndicate entered into a reinsurance to close transaction for the 2015 and prior years of account with StarStone Underwriting Limited, a subsidiary of Enstar Group Limited, which was effective as of December 31, 2017 and settled in early 2018. In the Lloyd’s market, a reinsurance to close transaction transfers the responsibility for discharging all of the liabilities that attach to the transferred year of account plus the right to any income due to the closing year of account in return for a premium. This transaction provides Neon with finality on its legacy business. As a result of the reinsurance to close agreement, Neon was able to better estimate its ultimate liability for the 2015 and prior years of account as of December 31, 2017, resulting in favorable development of $42 million, of which $24 million related to its ongoing lines of business (included in Specialty casualty) and $18 million related to its exited lines of business (discussed below and included in Neon exited lines charge). In November 2016, the Neon Lloyd’s syndicate completed a similar reinsurance to close transaction with StarStone, which covered liabilities relating to the syndicate’s 2007 and prior years of account. That transaction also included a quota share of the Italian public hospital business written in Neon’s 2008 year of account and represented Neon’s complete exit from the Italian public hospital medical malpractice business.

A reconciliation of incurred and paid claims development information to the aggregate carrying amount of the liability for unpaid losses and LAE, with separate disclosure of reinsurance recoverables on unpaid claims is shown below (in millions):

	2018
Unpaid losses and allocated LAE, net of reinsurance:
Specialty
Property and transportation	$	1,117
Specialty casualty	3,884
Specialty financial	225
Other specialty	280
Total Specialty (excluding foreign reserves)	5,506
Other reserves
Reserves for foreign operations:
Neon Lloyd’s business	265
Other subsidiaries	268
A&E reserves	395
Unallocated LAE	335
Other	30
Total other reserves	1,293
Total reserves, net of reinsurance	6,799
Add back reinsurance recoverables, net of allowance	2,942
Gross unpaid losses and LAE included in the balance sheet	$	9,741

The following claims development tables and associated disclosures related to short-duration insurance contracts are prepared by sub-segment within the property and casualty insurance business for the most recent 10 accident years. AFG determines its claim counts at the claimant or policy feature level depending on the particular facts and circumstances of the underlying claim. While the methodology is generally consistent within each sub-segment, there are minor differences between and within the sub-segments. The methods used to summarize claim counts have not changed significantly over the time periods reported in the tables below.

Property and transportation
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	503	$	487	$	505	$	498	$	494	$	494	$	491	$	491	$	491	$	490	$	2	138,248
2010			680		640		646		654		656		657		661		659		657		3		138,235
2011					816		803		819		833		844		856		853		850		6		139,345
2012							875		866		880		892		905		900		897		13		145,636
2013									894		881		884		890		890		890		18		141,293
2014											856		842		831		834		831		25		136,259
2015													831		794		789		789		36		134,484
2016															762		730		733		74		122,623
2017																	904		868		128		140,963
2018																			952		277		119,817
																	Total		$	7,957

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (a)
2009	$	219	$	333	$	397	$	440	$	462	$	476	$	480	$	481	$	484	$	485	99.0	%
2010			316		487		536		597		627		638		643		648		650		98.9	%
2011					367		670		732		777		810		828		836		839		98.7	%
2012							574		715		780		826		852		866		892		99.4	%
2013									440		710		769		814		843		859		96.5	%
2014											332		638		702		756		784		94.3	%
2015													361		587		675		717		90.9	%
2016															296		528		590		80.5	%
2017																	383		648		74.7	%
2018																			399		41.9	%
																	Total		$	6,863
									Unpaid losses and LAE — years 2009 through 2018										1,094
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																23
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	1,117

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	46.2	%	28.7	%	8.6	%	6.5	%	3.7	%	2.0	%	1.4	%	0.4	%	0.5	%	0.2	%
Cumulative	46.2	%	74.9	%	83.5	%	90.0	%	93.7	%	95.7	%	97.1	%	97.5	%	98.0	%	98.2	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Specialty casualty
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	888	$	887	$	864	$	844	$	833	$	828	$	829	$	824	$	820	$	811	$	34	56,985
2010			870		886		887		865		879		868		867		864		853		47		56,411
2011					847		845		833		842		827		822		819		811		52		53,385
2012							890		883		876		876		872		867		838		64		51,885
2013									956		938		933		928		933		913		99		51,620
2014											1,023		994		994		992		966		139		54,494
2015													1,068		1,033		1,031		1,030		185		55,468
2016															1,115		1,108		1,097		313		53,038
2017																	1,196		1,200		539		52,658
2018																			1,257		705		48,996
																	Total		$	9,776

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (a)
2009	$	170	$	381	$	510	$	591	$	653	$	691	$	715	$	731	$	740	$	748	92.2	%
2010			191		411		559		644		699		735		756		770		782		91.7	%
2011					172		380		517		606		655		687		707		725		89.4	%
2012							171		378		508		611		674		713		735		87.7	%
2013									180		388		545		656		717		754		82.6	%
2014											187		406		565		668		741		76.7	%
2015													176		406		569		692		67.2	%
2016															184		411		571		52.1	%
2017																	196		414		34.5	%
2018																			207		16.5	%
																	Total		$	6,369
									Unpaid losses and LAE — years 2009 through 2018										3,407
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																477
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	3,884

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	19.1	%	23.2	%	16.2	%	11.1	%	7.0	%	4.3	%	2.6	%	1.9	%	1.3	%	1.0	%
Cumulative	19.1	%	42.3	%	58.5	%	69.6	%	76.6	%	80.9	%	83.5	%	85.4	%	86.7	%	87.7	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Specialty financial
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	192	$	192	$	186	$	184	$	188	$	186	$	187	$	186	$	185	$	186	$	1	27,431
2010			138		145		132		132		135		133		130		127		126		1		21,922
2011					138		157		155		153		147		144		143		139		6		16,368
2012							163		163		151		139		137		135		132		6		21,064
2013									140		145		137		131		127		126		9		28,449
2014											146		157		156		153		147		9		29,411
2015													156		160		158		153		16		37,483
2016															179		184		187		24		44,820
2017																	212		215		34		46,921
2018																			212		79		36,606
																	Total		$	1,623

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018			% (a)
2009	$	112	$	145	$	157	$	166	$	171	$	181	$	185	$	186	$	186	$	185		99.5	%
2010			61		93		104		122		132		130		128		126		126			100.0	%
2011					58		111		115		123		130		131		131		132			95.0	%
2012							71		104		109		117		121		126		128			97.0	%
2013									70		100		107		113		117		117			92.9	%
2014											62		109		125		128		137			93.2	%
2015													72		110		129		133			86.9	%
2016															88		141		158			84.5	%
2017																	120		169			78.6	%
2018																			112			52.8	%
																	Total		$	1,397
									Unpaid losses and LAE — years 2009 through 2018										226
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																(1		)
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	225

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	50.5	%	26.4	%	7.5	%	5.8	%	4.7	%	1.7	%	0.5	%	(0.1	%)	—	%	(0.5	%)
Cumulative	50.5	%	76.9	%	84.4	%	90.2	%	94.9	%	96.6	%	97.1	%	97.0	%	97.0	%	96.5	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Other specialty
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims (a)
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	41	$	41	$	41	$	40	$	37	$	37	$	36	$	38	$	33	$	32	$	6	—
2010			36		39		40		39		40		40		40		40		40		3		—
2011					39		43		42		43		43		44		44		43		3		—
2012							42		40		39		40		41		39		39		6		—
2013									46		47		46		47		50		53		2		—
2014											58		57		59		59		60		13		—
2015													59		60		63		66		8		—
2016															61		61		65		21		—
2017																	63		65		36		—
2018																			86		62		—
																	Total		$	549

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (b)
2009	$	8	$	12	$	15	$	19	$	22	$	22	$	24	$	26	$	25	$	27	84.4	%
2010			8		14		21		24		27		33		35		36		37		92.5	%
2011					12		20		25		28		34		36		37		38		88.4	%
2012							8		17		21		25		28		30		30		76.9	%
2013									7		16		22		34		37		44		83.0	%
2014											13		21		30		36		43		71.7	%
2015													10		26		31		50		75.8	%
2016															9		19		31		47.7	%
2017																	10		19		29.2	%
2018																			12		14.0	%
																	Total		$	331
									Unpaid losses and LAE — years 2009 through 2018										218
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																62
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	280

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	18.7	%	17.0	%	12.6	%	14.1	%	9.3	%	7.6	%	3.4	%	3.7	%	(0.3	%)	6.3	%
Cumulative	18.7	%	35.7	%	48.3	%	62.4	%	71.7	%	79.3	%	82.7	%	86.4	%	86.1	%	92.4	%

(a) The amounts shown in Other specialty represent business assumed by AFG’s internal reinsurance program from the operations that make up AFG’s other Specialty property and casualty insurance sub-segments. Accordingly, the liability for incurred claims and allocated LAE represents additional reserves held on claims counted in the tables provided for the other sub-segments (above).

(b) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Total Specialty Group
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	1,624	$	1,607	$	1,596	$	1,566	$	1,552	$	1,545	$	1,543	$	1,539	$	1,529	$	1,519	$	43	222,664
2010			1,724		1,710		1,705		1,690		1,710		1,698		1,698		1,690		1,676		54		216,568
2011					1,840		1,848		1,849		1,871		1,861		1,866		1,859		1,843		67		209,098
2012							1,970		1,952		1,946		1,947		1,955		1,941		1,906		89		218,585
2013									2,036		2,011		2,000		1,996		2,000		1,982		128		221,362
2014											2,083		2,050		2,040		2,038		2,004		186		220,164
2015													2,114		2,047		2,041		2,038		245		227,435
2016															2,117		2,083		2,082		432		220,481
2017																	2,375		2,348		737		240,542
2018																			2,507		1,123		205,419
																	Total		$	19,905

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (a)
2009	$	509	$	871	$	1,079	$	1,216	$	1,308	$	1,370	$	1,404	$	1,424	$	1,435	$	1,445	95.1	%
2010			576		1,005		1,220		1,387		1,485		1,536		1,562		1,580		1,595		95.2	%
2011					609		1,181		1,389		1,534		1,629		1,682		1,711		1,734		94.1	%
2012							824		1,214		1,418		1,579		1,675		1,735		1,785		93.7	%
2013									697		1,214		1,443		1,617		1,714		1,774		89.5	%
2014											594		1,174		1,422		1,588		1,705		85.1	%
2015													619		1,129		1,404		1,592		78.1	%
2016															577		1,099		1,350		64.8	%
2017																	709		1,250		53.2	%
2018																			730		29.1	%
																	Total		$	14,960
									Unpaid losses and LAE — years 2009 through 2018										4,945
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																561
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	5,506

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	32.6	%	25.5	%	12.2	%	8.8	%	5.5	%	3.2	%	2.0	%	1.2	%	0.8	%	0.7	%
Cumulative	32.6	%	58.1	%	70.3	%	79.1	%	84.6	%	87.8	%	89.8	%	91.0	%	91.8	%	92.5	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Closed Block of Long-Term Care Insurance Following the completion of the sale of substantially all of its run-off long-term care insurance business in December 2015, AFG’s remaining long-term care insurance reserves were $45 million at December 31, 2018 and $39 million at December 31, 2017, net of reinsurance recoverables and excluding the impact of unrealized gains on securities. AFG’s remaining outstanding long-term care policies have level premiums and are guaranteed renewable. Premium rates can potentially be increased in reaction to adverse experience; however, any rate increases would require regulatory approval.

FHLB Funding Agreements   Great American Life Insurance Company (“GALIC”), a wholly-owned annuity subsidiary, is a member of the Federal Home Loan Bank of Cincinnati (“FHLB”). The FHLB makes advances and provides other banking services to member institutions. Members are required to purchase stock in the FHLB in addition to maintaining collateral deposits that back any funds advanced. GALIC’s $47 million investment in FHLB capital stock at December 31, 2018 is included in other investments at cost. Membership in the FHLB provides the annuity operations with an additional source of liquidity. These advances further the FHLB’s mission of improving access to housing by increasing liquidity in the residential mortgage-backed securities market. In the fourth quarter of 2018, GALIC refinanced the terms on a $40 million advance to extend the maturity and the FHLB advanced GALIC $225 million, increasing the total amount advanced to $1.10 billion (included in annuity benefits accumulated) at December 31, 2018. In 2017, GALIC refinanced the terms on advances totaling $831 million, which lowered the weighted average spread over LIBOR. Interest rates under the various funding agreements on the advances range from 0.15% to 0.24% over LIBOR (average rate of 2.68% at December 31, 2018). While these advances must be repaid between 2019 and 2021 ($445 million in 2019, $40 million in 2020 and $611 million in 2021), GALIC has the option to prepay all or a portion of the advances. GALIC has invested the proceeds from the advances in fixed maturity securities with similar expected lives as the advances for the purpose of earning a spread over the interest payments due to the FHLB. The advances on these agreements are collateralized by fixed maturity investments, which have a total fair value of $1.28 billion (included in available for sale fixed maturity securities) at December 31, 2018. Interest credited on the funding agreements, which is included in annuity benefits, was $20 million in 2018, $14 million in 2017 and $8 million in 2016.

Statutory Information   AFG’s U.S.-based insurance subsidiaries are required to file financial statements with state insurance regulatory authorities prepared on an accounting basis prescribed or permitted by such authorities (statutory basis). Net earnings and capital and surplus on a statutory basis for the insurance subsidiaries were as follows (in millions):

	Net Earnings						Capital and Surplus
	2018		2017		2016		2018		2017
Property and casualty companies	$	546	$	484	$	461	$	2,867	$	2,729
Life insurance companies	802		286		167		2,701		2,132

In the fourth quarter of 2018, GALIC, AFG’s primary annuity subsidiary, entered into a reinsurance treaty with Hannover Life Reassurance Company of America that transfers the risk of certain surrender activity in GALIC’s fixed-indexed annuity business. This treaty meets the statutory risk transfer rules and resulted in a $510 million increase in statutory surplus (through an after-tax reserve credit), which is reflected in the life insurance companies capital and surplus in the table above. Under GAAP, this transaction does not meet the GAAP insurance risk transfer criteria and did not have a material impact on AFG’s financial statements.

The National Association of Insurance Commissioners’ (“NAIC”) model law for risk based capital (“RBC”) applies to both life and property and casualty insurance companies. RBC formulas determine the amount of capital that an insurance company needs so that it has an acceptable expectation of not becoming financially impaired. Companies below specific trigger points or ratios are subject to regulatory action. At December 31, 2018 and 2017, the capital ratios of all AFG insurance companies substantially exceeded the RBC requirements. AFG’s insurance companies did not use any prescribed or permitted statutory accounting practices that differed from the NAIC statutory accounting practices at December 31, 2018 or 2017.

Payments of dividends by AFG’s insurance companies are subject to various state laws that limit the amount of dividends that can be paid. Under applicable restrictions, the maximum amount of dividends available to AFG in 2019 from its insurance subsidiaries without seeking regulatory approval is $1.30 billion. Additional amounts of dividends require regulatory approval.

Holding Company Dividends   AFG declared and paid common stock dividends to shareholders totaling $397 million, $421 million and $187 million in 2018, 2017 and 2016, respectively. Currently, there are no regulatory restrictions on AFG’s retained earnings or net earnings that materially impact its ability to pay dividends. Based on shareholders’ equity at December 31, 2018, AFG could pay dividends of nearly $2 billion without violating its most restrictive debt covenant. However, the payment of future dividends will be at the discretion of AFG’s Board of Directors and will be dependent on many factors including AFG’s financial condition and results of operations, the capital requirements of its insurance subsidiaries, and rating agency commitments.

Reinsurance In the normal course of business, AFG’s insurance subsidiaries cede reinsurance to other companies to diversify risk and limit maximum loss arising from large claims. However, AFG remains liable to its insureds regardless of whether a reinsurer is able to meet its obligations. The following table shows (in millions) (i) amounts deducted from property and casualty written and earned premiums in connection with reinsurance ceded, (ii) written and earned premiums included in income for reinsurance assumed and (iii) reinsurance recoveries, which represent ceded losses and loss adjustment expenses.

	2018			2017			2016
Direct premiums written	$	6,626		$	6,310		$	5,858
Reinsurance assumed	214			192			123
Reinsurance ceded	(1,817		)	(1,751		)	(1,595		)
Net written premiums	$	5,023		$	4,751		$	4,386
Direct premiums earned	$	6,472		$	6,112		$	5,745
Reinsurance assumed	204			157			118
Reinsurance ceded	(1,811		)	(1,690		)	(1,535		)
Net earned premiums	$	4,865		$	4,579		$	4,328
Reinsurance recoveries	$	1,249		$	1,379		$	810

In June 2017, AFG’s property and casualty insurance subsidiaries entered into a reinsurance agreement to obtain supplemental catastrophe protection through a catastrophe bond structure with Riverfront Re Ltd. (“Riverfront”). The reinsurance agreement provides supplemental reinsurance coverage up to 95% of $200 million (fully collateralized) for catastrophe losses in excess of $104 million (per occurrence and annual aggregate) occurring between June 1, 2017 and December 31, 2020. In connection with the reinsurance agreement, Riverfront issued notes to unrelated investors for the full amount of coverage provided under the reinsurance agreement. Through December 31, 2018, AFG’s incurred catastrophe losses have not reached the level of attachment for the catastrophe bond structure. Riverfront is a variable interest entity in which AFG does not have a variable interest because the variability in Riverfront’s results will be absorbed entirely by the investors in Riverfront. Accordingly, Riverfront is not consolidated in AFG’s financial statements and the reinsurance agreement is accounted for as ceded reinsurance. AFG’s cost for this coverage is approximately $11 million per year.

AFG’s property and casualty insurance operations entered into a similar reinsurance agreement in March 2014 to obtain additional catastrophe protection through a catastrophe bond structure with Riverfront, which provided supplemental reinsurance coverage for catastrophe losses occurring between April 1, 2014 and January 6, 2017.

AFG has reinsured approximately $7.69 billion of its $10.82 billion in face amount of life insurance at December 31, 2018 compared to $8.32 billion of its $12.05 billion in face amount of life insurance at December 31, 2017. Life written premiums ceded were $22 million, $28 million and $31 million for 2018, 2017 and 2016, respectively. Reinsurance recoveries on ceded life policies were $38 million, $35 million and $41 million for 2018, 2017 and 2016, respectively.

Fixed Annuities   For certain products, the liability for “annuity benefits accumulated” includes reserves for excess benefits expected to be paid on future deaths and annuitizations guaranteed withdrawal benefits and accrued persistency and premium bonuses. The liabilities included in AFG’s Balance Sheet for these benefits, excluding the impact of unrealized gains on securities, were as follows at December 31 (in millions):

	2018		2017
Expected death and annuitization	$	229	$	228
Guaranteed withdrawal benefits	472		358
Accrued persistency and premium bonuses	1		3

Variable Annuities   At December 31, 2018, the aggregate guaranteed minimum death benefit value (assuming every variable annuity policyholder died on that date) on AFG’s variable annuity policies exceeded the fair value of the underlying variable annuities by $35 million, compared to $15 million at December 31, 2017. Death benefits paid in excess of the variable annuity account balances were less than $1 million in each of the last three years ended December 31, 2018, 2017 and 2016.

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Additional Information

12 Months Ended

Dec. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Additional Information

Additional Information

Allowance for Uncollectible Reinsurance   AFG’s aggregate allowance for uncollectible reinsurance recoverables was $18 million at December 31, 2018 and $20 million at December 31, 2017. AFG reviews the allowance quarterly and adjusts it as necessary to reflect changes in estimates of uncollectible balances. AFG recorded net expense reductions against the allowance of $2 million in 2018 and less than $1 million in both 2017 and 2016. In 2017, the allowance was reduced by reinsurance recoverable write-offs of $2 million.

Operating Leases   Total rental expense for various leases of office space and equipment was $70 million in 2018, $69 million in 2017 and $67 million in 2016. Future minimum rentals, related principally to office space, required under operating leases having initial or remaining noncancelable lease terms in excess of one year at December 31, 2018, were as follows: 2019 – $65 million; 2020 – $57 million; 2021 – $50 million; 2022 – $40 million; 2023 – $35 million; and $79 million thereafter.

Financial Instruments — Unfunded Commitments On occasion, AFG and its subsidiaries have entered into financial instrument transactions that may present off-balance-sheet risks of both a credit and market risk nature. These transactions include commitments to fund loans, loan guarantees and commitments to purchase and sell securities or loans. At December 31, 2018, AFG and its subsidiaries had commitments to fund credit facilities and contribute capital to limited partnerships and limited liability corporations of approximately $949 million.

Benefit Plans   AFG expensed approximately $37 million in 2018, $45 million in 2017 and $43 million in 2016 for its retirement and employee savings plans.

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Condensed Financial Information of Parent Company

12 Months Ended

Dec. 31, 2018

Condensed Financial Information Disclosure [Abstract]

Condensed Financial Information of Parent Company

AMERICAN FINANCIAL GROUP, INC. — PARENT ONLY

SCHEDULE II — CONDENSED FINANCIAL INFORMATION OF REGISTRANT

(In Millions)

Condensed Balance Sheet

	December 31,
	2018		2017
Assets:
Cash and cash equivalents	$	158	$	299
Investment in securities	65		70
Investment in subsidiaries (a)	6,155		6,310
Other investments	2		2
Other assets	68		141
Total assets	$	6,448	$	6,822
Liabilities and Equity:
Long-term debt	$	1,302	$	1,301
Other liabilities	176		191
Shareholders’ equity	4,970		5,330
Total liabilities and equity	$	6,448	$	6,822

Condensed Statement of Earnings

	Year ended December 31,
	2018		2017		2016
Revenues:
Dividends from subsidiaries	$	261	$	681	$	643
Equity in undistributed earnings of subsidiaries	529		264		286
Investment and other income	2		13		7
Total revenues	792		958		936
Costs and Expenses:
Interest charges on intercompany borrowings	8		9		9
Interest charges on other borrowings	62		85		77
Other expenses	70		142		82
Total costs and expenses	140		236		168
Earnings before income taxes	652		722		768
Provision for income taxes	122		247		119
Net Earnings Attributable to Shareholders	$	530	$	475	$	649

Condensed Statement of Comprehensive Income

Net earnings attributable to shareholders	$	530		$	475	$	649
Other comprehensive income (loss), net of tax	(544		)	296		62
Total comprehensive income (loss), net of tax	$	(14	)	$	771	$	711

________________________

(a) Investment in subsidiaries includes intercompany receivables and payables.

Condensed Statement of Cash Flows

	Year ended December 31,
	2018			2017			2016
Operating Activities:
Net earnings attributable to shareholders	$	530		$	475		$	649
Adjustments:
Equity in net earnings of subsidiaries	(637		)	(575		)	(638		)
Dividends from subsidiaries	238			580			611
Other operating activities, net	84			98			(67		)
Net cash provided by operating activities	215			578			555
Investing Activities:
Capital contributions to subsidiaries	(11		)	(93		)	(560		)
Returns of capital from subsidiaries	23			30			—
Purchases of investments, property and equipment	(5		)	(2		)	(1		)
Proceeds from maturities and redemptions of investments	3			2			1
Net cash provided by (used in) investing activities	10			(63		)	(560		)
Financing Activities:
Additional long-term borrowings	—			712			296
Reductions of long-term debt	—			(745		)	—
Issuances of Common Stock	34			37			35
Repurchases of Common Stock	(6		)	—			(133		)
Cash dividends paid on Common Stock	(394		)	(417		)	(185		)
Net cash provided by (used in) financing activities	(366		)	(413		)	13
Net Change in Cash and Cash Equivalents	(141		)	102			8
Cash and cash equivalents at beginning of year	299			197			189
Cash and cash equivalents at end of year	$	158		$	299		$	197

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Supplementary Insurance Information

12 Months Ended

Dec. 31, 2018

SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract]

Supplementary Insurance Information

AMERICAN FINANCIAL GROUP, INC. AND SUBSIDIARIES

SCHEDULE III — SUPPLEMENTARY INSURANCE INFORMATION

THREE YEARS ENDED DECEMBER 31, 2018

(IN MILLIONS)

Segment	Deferred policy acquisition costs		Reserves for future policy benefits, claims and unpaid losses and LAE		Unearned premiums		Net earned premiums		Net investment income			Benefits, claims, losses and settlement expenses		Amortization of deferred policy acquisition costs		Other operating expenses		Net written premiums (excluding life)
2018
Property and casualty insurance	$	299	$	9,741	$	2,595	$	4,865	$	438		$	3,003	$	644	$	957	$	5,023
Annuity	1,360		36,616		—		—		1,638			998		212		174		—
Other	23		635		—		24		18			40		4		479		3
Total	$	1,682	$	46,992	$	2,595	$	4,889	$	2,094		$	4,041	$	860	$	1,610	$	5,026
2017
Property and casualty insurance	$	270	$	9,678	$	2,410	$	4,579	$	362		$	2,955	$	556	$	867	$	4,751
Annuity	920		33,316		—		—		1,458			892		130		159		—
Other	26		658		—		22		11			26		4		552		3
Total	$	1,216	$	43,652	$	2,410	$	4,601	$	1,831		$	3,873	$	690	$	1,578	$	4,754
2016
Property and casualty insurance	$	238	$	8,563	$	2,171	$	4,328	$	350		$	2,762	$	520	$	870	$	4,386
Annuity	981		29,907		—		—		1,356			800		149		142		—
Other	20		691		—		24		(10		)	33		4		431		3
Total	$	1,239	$	39,161	$	2,171	$	4,352	$	1,696		$	3,595	$	673	$	1,443	$	4,389

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Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation   The consolidated financial statements include the accounts of American Financial Group, Inc. and its subsidiaries (“AFG”). Certain reclassifications have been made to prior years to conform to the current year’s presentation. All significant intercompany balances and transactions have been eliminated. The results of operations of companies since their formation or acquisition are included in the consolidated financial statements. Events or transactions occurring subsequent to December 31, 2018, and prior to the filing of this Form 10-K, have been evaluated for potential recognition or disclosure herein.

The preparation of the financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Changes in circumstances could cause actual results to differ materially from those estimates.

Fair Value Measurements

Fair Value Measurements   Accounting standards define fair value as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants on the measurement date. The standards establish a hierarchy of valuation techniques based on whether the assumptions that market participants would use in pricing the asset or liability (“inputs”) are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect AFG’s assumptions about the assumptions market participants would use in pricing the asset or liability. AFG did not have any significant nonrecurring fair value measurements of nonfinancial assets and liabilities in 2018 or 2017.

Investments

Investments On January 1, 2018, AFG adopted Accounting Standards Update (“ASU”) 2016-01, which requires all equity securities other than those accounted for under the equity method to be reported at fair value with holding gains and losses recognized in net earnings. At December 31, 2017, AFG had $1.60 billion in equity securities classified as “available for sale” under the prior guidance with holding gains and losses included in accumulated other comprehensive income (“AOCI”) instead of net earnings. At the date of adoption, the $221 million net unrealized gain on equity securities included in AOCI was reclassified to retained earnings as the cumulative effect of an accounting change. The cumulative effect of the accounting change also includes the net unrealized gain on AFG’s small number of limited partnerships and similar investments carried at cost under the prior guidance that are carried at fair value through net earnings under the new guidance ($4 million net of tax at the date of adoption).

Holding gains and losses on equity securities carried at fair value under ASU 2016-01 are generally recorded in realized gains (losses) on securities. However, prior to the adoption of the new guidance, AFG classified a small portion of its equity securities as “trading” and reported those investments at fair value with holding gains and losses recognized in net investment income. These investments consisted primarily of equity securities held to offset the impact of changes in the stock market on employee benefit plans that are impacted by stock market performance and totaled $62 million at December 31, 2017. Following the adoption of the new guidance, AFG continues to record holding gains and losses on these securities, as well as its small portfolio of limited partnerships and similar investments carried at fair value under the new guidance and certain other securities classified at purchase as “fair value through net investment income” in net investment income.

Under the new guidance, AFG recorded holding losses of $257 million on equity securities in net earnings during 2018 on securities that were still owned at December 31, 2018. Under the prior guidance, these holding losses would have been recorded in AOCI (with the exception of any impairment charge that may have been recorded). Because almost all of the equity securities impacted by the new guidance were carried at fair value through AOCI under the prior guidance, the adoption of the new guidance did not have a material impact on AFG’s financial position.

Fixed maturity securities classified as “available for sale” are reported at fair value with unrealized gains and losses included in AOCI in AFG’s Balance Sheet. Fixed maturity securities classified as “trading” are reported at fair value with changes in unrealized holding gains or losses during the period included in net investment income. Mortgage and policy loans are carried primarily at the aggregate unpaid balance.

Premiums and discounts on fixed maturity securities are amortized using the effective interest method. Mortgage-backed securities (“MBS”) are amortized over a period based on estimated future principal payments, including prepayments. Prepayment assumptions are reviewed periodically and adjusted to reflect actual prepayments and changes in expectations.

Limited partnerships and similar investments are generally accounted for using the equity method of accounting. Under the equity method, AFG records its share of the earnings or losses of the investee based on when they are reported by the investee in its financial statements rather than in the period in which the investee declares a dividend. AFG’s share of the earnings or losses from equity method investments is generally recorded on a quarter lag due to the timing of the receipt of the investee’s financial statements. AFG’s equity in the earnings (losses) of limited partnerships and similar investments is included in net investment income.

Gains or losses on fixed-maturity securities are determined on the specific identification basis. When a decline in the value of a specific investment is considered to be other-than-temporary at the balance sheet date, a provision for impairment is charged to earnings (included in realized gains (losses) on securities) and the cost basis of that investment is reduced. If management can assert that it does not intend to sell an impaired fixed maturity security and it is not more likely than not that it will have to sell the security before recovery of its amortized cost basis, then the other-than-temporary impairment is separated into two components: (i) the amount related to credit losses (recorded in earnings) and (ii) the amount related to all other factors (recorded in other comprehensive income). The credit-related portion of an other-than-temporary impairment is measured by comparing a security’s amortized cost to the present value of its current expected cash flows discounted at its effective yield prior to the impairment charge. Both components are shown in the statement of earnings. If management intends to sell an impaired security, or it is more likely than not that it will be required to sell the security before recovery, an impairment charge to earnings is recorded to reduce the amortized cost of that security to fair value.

Derivatives

Derivatives Derivatives included in AFG’s Balance Sheet are recorded at fair value. Changes in fair value of derivatives are included in earnings, unless the derivatives are designated and qualify as highly effective cash flow hedges. Derivatives that do not qualify for hedge accounting under GAAP consist primarily of (i) components of certain fixed maturity securities (primarily interest-only and principal-only MBS) and (ii) the equity-based component of certain annuity products (included in annuity benefits accumulated) and related equity index options designed to be consistent with the characteristics of the liabilities and used to mitigate the risk embedded in those annuity products.

To qualify for hedge accounting, at the inception of a derivative contract, AFG formally documents the relationship between the terms of the hedge and the hedged items and its risk management objective. This documentation includes defining how hedge effectiveness and ineffectiveness will be measured on a retrospective and prospective basis.

Changes in the fair value of derivatives that are designated and qualify as highly effective cash flow hedges are recorded in AOCI and are reclassified into earnings when the variability of the cash flows from the hedged items impacts earnings. Any hedge ineffectiveness is immediately recorded in current period earnings. When the change in the fair value of a qualifying cash flow hedge is included in earnings, it is included in the same line item in the statement of earnings as the cash flows from the hedged item. AFG uses interest rate swaps that are designated and qualify as highly effective cash flow hedges to mitigate interest rate risk related to certain floating-rate securities included in AFG’s portfolio of fixed maturity securities.

For derivatives that are designated and qualify as highly effective fair value hedges, changes in the fair value of the derivative, along with changes in the fair value of the hedged item attributable to the hedged risk, are recognized in current period earnings.

Goodwill

Goodwill Goodwill represents the excess of cost of subsidiaries over AFG’s equity in their underlying net assets. Goodwill is not amortized, but is subject to an impairment test at least annually. An entity is not required to complete the quantitative annual goodwill impairment test on a reporting unit if the entity elects to perform a qualitative analysis and determines that it is more likely than not that the reporting unit’s fair value exceeds its carrying amount.

Reinsurance

Reinsurance Amounts recoverable from reinsurers are estimated in a manner consistent with the claim liability associated with the reinsured policies. AFG’s property and casualty insurance subsidiaries report as assets (i) the estimated reinsurance recoverable on paid and unpaid losses, including an estimate for losses incurred but not reported, and (ii) amounts paid or due to reinsurers applicable to the unexpired terms of policies in force. Payable to reinsurers includes ceded premiums due to reinsurers, as well as ceded premiums retained by AFG’s property and casualty insurance subsidiaries under contracts to fund ceded losses as they become due. AFG’s insurance subsidiaries also assume reinsurance from other companies. Earnings on reinsurance assumed is recognized based on information received from ceding companies.

An AFG subsidiary cedes life insurance policies to a third party on a funds withheld basis whereby the subsidiary retains the assets (securities) associated with the reinsurance contract. Interest is credited to the reinsurer based on the actual investment performance of the retained assets. This reinsurance contract is considered to contain an embedded derivative (that must be adjusted to fair value) because the yield on the payable is based on a specific block of the ceding company’s assets, rather than the overall creditworthiness of the ceding company. AFG determined that changes in the fair value of the underlying portfolio of fixed maturity securities is an appropriate measure of the value of the embedded derivative. The securities related to this contract are classified as “trading.” The adjustment to fair value on the embedded derivative offsets the investment income recorded on the adjustment to fair value of the related trading portfolio.

Deferred Policy Acquisition Costs (''DPAC'')

Deferred Policy Acquisition Costs (“DPAC”)   Policy acquisition costs (principally commissions, premium taxes and certain underwriting and policy issuance costs) directly related to the successful acquisition or renewal of an insurance contract are deferred. DPAC also includes capitalized costs associated with sales inducements offered to fixed annuity policyholders such as enhanced interest rates and premium and persistency bonuses.

For the property and casualty companies, DPAC is limited based upon recoverability without any consideration for anticipated investment income and is charged against income ratably over the terms of the related policies. A premium deficiency is recognized if the sum of expected claims costs, claims adjustment expenses and unamortized acquisition costs exceed the related unearned premiums. A premium deficiency is first recognized by charging any unamortized acquisition costs to expense to the extent required to eliminate the deficiency. If the premium deficiency is greater than unamortized acquisition costs, a liability is accrued for the excess deficiency and reported with unpaid losses and loss adjustment expenses.

DPAC related to annuities is deferred to the extent deemed recoverable and amortized, with interest, in relation to the present value of actual and expected gross profits on the policies. Expected gross profits consist principally of estimated future investment margin (estimated future net investment income less interest credited on policyholder funds) and surrender, mortality, and other life and annuity policy charges, less death, annuitization and guaranteed withdrawal benefits in excess of account balances and estimated future policy administration expenses. To the extent that realized gains and losses result in adjustments to the amortization of DPAC related to annuities, such adjustments are reflected as components of realized gains (losses) on securities.

DPAC related to traditional life and health insurance is amortized over the expected premium paying period of the related policies, in proportion to the ratio of annual premium revenues to total anticipated premium revenues. See “Life, Accident and Health Reserves” below for details on the impact of loss recognition on the accounting for traditional life and health insurance contracts.

DPAC includes the present value of future profits on business in force of annuity and life, accident and health insurance companies acquired (“PVFP”). PVFP represents the portion of the costs to acquire companies that is allocated to the value of the right to receive future cash flows from insurance contracts existing at the date of acquisition. PVFP is amortized with interest in relation to expected gross profits of the acquired policies for annuities and universal life products and in relation to the premium paying period for traditional life and health insurance products.

DPAC and certain other balance sheet amounts related to annuity and life businesses are also adjusted, net of tax, for the change in expense that would have been recorded if the unrealized gains (losses) from securities had actually been realized. These adjustments are included in unrealized gains (losses) on marketable securities, a component of AOCI in AFG’s Balance Sheet.

Managed Investment Entities

Managed Investment EntitiesA company is considered the primary beneficiary of, and therefore must consolidate, a variable interest entity (“VIE”) based primarily on its ability to direct the activities of the VIE that most significantly impact that entity’s economic performance and the obligation to absorb losses of, or receive benefits from, the entity that could potentially be significant to the VIE.

AFG manages, and has investments in, collateralized loan obligations (“CLOs”) that are VIEs (see Note H — “Managed Investment Entities”). AFG has determined that it is the primary beneficiary of the CLOs because (i) its role as asset manager gives it the power to direct the activities that most significantly impact the economic performance of the CLOs and (ii) through its investment in the CLO debt tranches, it has exposure to CLO losses (limited to the amount AFG invested) and the right to receive CLO benefits that could potentially be significant to the CLOs.

Because AFG has no right to use the CLO assets and no obligation to pay the CLO liabilities, the assets and liabilities of the CLOs are shown separately in AFG’s Balance Sheet. AFG has elected the fair value option for reporting on the CLO assets and liabilities to improve the transparency of financial reporting related to the CLOs. The net gain or loss from accounting for the CLO assets and liabilities at fair value is presented separately in AFG’s Statement of Earnings.

The fair values of a CLO’s assets may differ from the separately measured fair values of its liabilities even though the CLO liabilities only have recourse to the CLO assets. AFG has set the carrying value of the CLO liabilities equal to the fair value of the CLO assets (which have more observable fair values) as an alternative to reporting those liabilities at a separately measured fair value. CLO earnings attributable to AFG’s shareholders are measured by the change in the fair value of AFG’s investments in the CLOs and management fees earned.

Unpaid Losses and Loss Adjustment Expenses

Unpaid Losses and Loss Adjustment Expenses   The net liabilities stated for unpaid claims and for expenses of investigation and adjustment of unpaid claims represent management’s best estimate and are based upon (i) the accumulation of case estimates for losses reported prior to the close of the accounting period on direct business written; (ii) estimates received from ceding reinsurers and insurance pools and associations; (iii) estimates of unreported losses (including possible development on known claims) based on past experience; (iv) estimates based on experience of expenses for investigating and adjusting claims; and (v) the current state of the law and coverage litigation. Establishing reserves for asbestos, environmental and other mass tort claims involves considerably more judgment than other types of claims due to, among other things, inconsistent court decisions, an increase in bankruptcy filings as a result of asbestos-related liabilities, novel theories of coverage, and judicial interpretations that often expand theories of recovery and broaden the scope of coverage.

Loss reserve liabilities are subject to the impact of changes in claim amounts and frequency and other factors. Changes in estimates of the liabilities for losses and loss adjustment expenses are reflected in the statement of earnings in the period in which determined. Despite the variability inherent in such estimates, management believes that the liabilities for unpaid losses and loss adjustment expenses are adequate.

Annuity Benefits Accumulated

Annuity Benefits Accumulated   Annuity receipts and benefit payments are recorded as increases or decreases in annuity benefits accumulated rather than as revenue and expense. Increases in this liability for interest credited are charged to annuity benefits expense and decreases for annuity policy charges are recorded in other income. For traditional fixed annuities, the liability for annuity benefits accumulated represents the account value that had accrued to the benefit of the policyholder as of the balance sheet date. For fixed-indexed annuities, the liability for annuity benefits accumulated includes an embedded derivative that represents the estimated fair value of the index participation with the remaining component representing the discounted value of the guaranteed minimum contract benefits.

For certain products, annuity benefits accumulated also includes reserves for accrued persistency and premium bonuses, guaranteed withdrawals and excess benefits expected to be paid on future deaths and annuitizations (“EDAR”). The liabilities for EDAR and guaranteed withdrawals are accrued for and modified using assumptions consistent with those used in determining DPAC and DPAC amortization, except that amounts are determined in relation to the present value of total expected assessments. Total expected assessments consist principally of estimated future investment margin, surrender, mortality, and other life and annuity policy charges, and unearned revenues once they are recognized as income.

Annuity benefits accumulated also includes amounts advanced from the Federal Home Loan Bank of Cincinnati.

Unearned Revenue

Unearned Revenue   Certain upfront policy charges on annuities are deferred as unearned revenue (included in other liabilities) and recognized in net earnings (included in other income) using the same assumptions and estimated gross profits used to amortize DPAC.

Life, Accident and Health Reserves

Life, Accident and Health Reserves Liabilities for future policy benefits under traditional life, accident and health policies are computed using the net level premium method. Computations are based on the original projections of investment yields, mortality, morbidity and surrenders and include provisions for unfavorable deviations unless a loss recognition event (premium deficiency) occurs. Claim reserves and liabilities established for accident and health claims are modified as necessary to reflect actual experience and developing trends.

For long-duration contracts (such as traditional life and long-term care policies), loss recognition occurs when, based on current expectations as of the measurement date, existing contract liabilities plus the present value of future premiums (including reasonably expected rate increases) are not expected to cover the present value of future claims payments and related settlement and maintenance costs (excluding overhead) as well as unamortized acquisition costs. If a block of business is determined to be in loss recognition, a charge is recorded in earnings in an amount equal to the excess of the present value of expected future claims costs and unamortized acquisition costs over existing reserves plus the present value of expected future premiums (with no provision for adverse deviation). The charge is recorded first to reduce unamortized acquisition costs and then as an additional reserve (if unamortized acquisition costs have been reduced to zero).

In addition, reserves for traditional life and long-term care policies are subject to adjustment for loss recognition charges that would have been recorded if the unrealized gains (losses) from securities had actually been realized. This adjustment is included in unrealized gains (losses) on marketable securities, a component of AOCI in AFG’s Balance Sheet.

Debt Issuance Costs

Debt Issuance CostsDebt issuance costs related to AFG’s outstanding debt are presented in its Balance Sheet as a direct reduction in the carrying value of long-term debt and are amortized over the life of the related debt using the effective interest method as a component of interest expense. Debt issuance costs related to AFG’s revolving credit facilities are included in other assets in AFG’s Balance Sheet.

Variable Annuity Assets and Liabilities

Variable Annuity Assets and Liabilities   Separate accounts related to variable annuities represent the fair value of deposits invested in underlying investment funds on which AFG earns a fee. Investment funds are selected and may be changed only by the policyholder, who retains all investment risk.

AFG’s variable annuity contracts contain a guaranteed minimum death benefit (“GMDB”) to be paid if the policyholder dies before the annuity payout period commences. In periods of declining equity markets, the GMDB may exceed the value of the policyholder’s account. A GMDB liability is established for future excess death benefits using assumptions together with a range of reasonably possible scenarios for investment fund performance that are consistent with DPAC capitalization and amortization assumptions.

Premium Recognition

Premium Recognition   Property and casualty premiums are earned generally over the terms of the policies on a pro rata basis. Unearned premiums represent that portion of premiums written, which is applicable to the unexpired terms of policies in force. On reinsurance assumed from other insurance companies or written through various underwriting organizations, unearned premiums are based on information received from such companies and organizations. For traditional life, accident and health products, premiums are recognized as revenue when legally collectible from policyholders. For interest-sensitive life and universal life products, premiums are recorded in a policyholder account, which is reflected as a liability. Revenue is recognized as amounts are assessed against the policyholder account for mortality coverage and contract expenses.

Noncontrolling Interests

Noncontrolling Interests   For balance sheet purposes, noncontrolling interests represent the interests of shareholders other than AFG in consolidated entities. In the statement of earnings, net earnings and losses attributable to noncontrolling interests represents such shareholders’ interest in the earnings and losses of those entities. Noncontrolling interests that are redeemable at the option of the holder are presented separately in the mezzanine section of the balance sheet (between liabilities and equity).

Income Taxes

Income Taxes   Deferred income taxes are calculated using the liability method. Under this method, deferred income tax assets and liabilities are determined based on differences between financial reporting and tax bases and are measured using enacted tax rates. A valuation allowance is established to reduce total deferred tax assets to an amount that will more likely than not be realized.

AFG recognizes the tax benefits of uncertain tax positions only when the position is more likely than not to be sustained under examination by the appropriate taxing authority. Interest and penalties on AFG’s reserve for uncertain tax positions are recognized as a component of tax expense.

The effect of a change in tax rates on deferred tax assets and liabilities is recorded in net earnings in the period that includes the enactment date. This includes the impact on deferred tax assets or liabilities established through AOCI, which results in an amount equal to the difference between the deferred tax at the historical corporate rate and the newly enacted rate stranded in AOCI. As permitted under guidance adopted effective December 31, 2017 (ASU 2018-02), AFG reclassified the $145 million stranded in AOCI from accounting for the Tax Cuts and Jobs Act of 2017 to retained earnings at December 31, 2017. See Note L — “Income Taxes” for further information.

Stock-Based Compensation

Stock-Based Compensation All share-based grants are recognized as compensation expense on a straight-line basis over their vesting periods based on their calculated fair value at the date of grant. AFG uses the Black-Scholes pricing model to measure the fair value of employee stock options. See Note K — “Shareholders’ Equity” for further information.

Benefit Plans

Benefit Plans   AFG provides retirement benefits to qualified employees of participating companies through the AFG 401(k) Retirement and Savings Plan, a defined contribution plan. AFG makes all contributions to the retirement fund portion of the plan and matches a percentage of employee contributions to the savings fund. Company contributions are expensed in the year for which they are declared. AFG and many of its subsidiaries provide health care and life insurance benefits to eligible retirees. AFG also provides postemployment benefits to former or inactive employees (primarily those on disability) who were not deemed retired under other company plans. The projected future cost of providing these benefits is expensed over the period employees earn such benefits.

Earnings Per Share

Earnings Per Share   Although basic earnings per share only considers shares of common stock outstanding during the period, the calculation of diluted earnings per share includes the following adjustments to weighted average common shares related to stock-based compensation plans: 2018 – 1.6 million, 2017 – 2.0 million and 2016 – 1.6 million.

AFG’s weighted average diluted shares outstanding excludes the following anti-dilutive potential common shares related to stock compensation plans: 2018 and 2017 – none and 2016 – 0.4 million. Adjustments to net earnings attributable to shareholders in the calculation of diluted earnings per share were nominal in the 2018, 2017 and 2016 periods.

Statement of Cash Flows

Statement of Cash Flows   For cash flow purposes, “investing activities” are defined as making and collecting loans and acquiring and disposing of debt or equity instruments, property and equipment and businesses. “Financing activities” include obtaining resources from owners and providing them with a return on their investments, borrowing money and repaying amounts borrowed. Annuity receipts, surrenders, benefits and withdrawals are also reflected as financing activities. All other activities are considered “operating.” Short-term investments having original maturities of three months or less when purchased are considered to be cash equivalents for purposes of the financial statements.

New Accounting Pronouncements

Revenue Recognition Guidance Effective in 2018 On January 1, 2018, AFG adopted ASU 2014-09, which provides guidance on recognizing revenue when (or as) performance obligations under the contract are satisfied. The new guidance also updates the accounting for certain costs associated with obtaining and fulfilling contracts with customers and requires certain new disclosures. Because revenue recognition for insurance contracts and financial instruments (AFG’s primary sources of revenue) were excluded from the scope of the new guidance, the adoption of ASU 2014-09 did not have a material impact on AFG’s results of operations and financial position.

Lease Accounting Guidance Effective in 2019 In February 2016, the FASB issued ASU 2016-02, which requires entities that lease assets for terms longer than one year to recognize the assets and liabilities for the rights and obligations created by those leases on the balance sheet based on the present value of contractual cash flows. Qualitative and quantitative disclosures of the amount, timing and uncertainty of cash flows arising from leases will also be required. AFG will adopt the updated guidance effective January 1, 2019. The new guidance will not have a material effect on AFG’s results of operations because it does not change the manner in which lease-related expenses are recognized in the statement of earnings. In addition, the new guidance will not have a material effect on AFG’s financial position as recognizing the assets and liabilities related to operating leases upon adoption of the new guidance in January 2019 will increase AFG’s consolidated assets and consolidated liabilities by less than one-half of 1% as compared to AFG’s Balance Sheet at December 31, 2018.

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Acquisitions and Sale of Businesses (Tables)

12 Months Ended

Dec. 31, 2018

Business Combinations [Abstract]

Schedule of estimated fair values of assets acquired and liabilities assumed

The allocation of the purchase price is shown in the table below (in millions):

	November 30, 2018
Total purchase price	$	30
Tangible assets acquired	28
Liabilities acquired	26
Net tangible assets acquired, at fair value	2
Excess purchase price over net tangible assets acquired	$	28
Allocation of excess purchase price:
Intangible assets acquired (*)	$	25
Deferred tax on intangible assets acquired (*)	(5		)
Goodwill	8
	$	28

(*) Included in Other assets in AFG’s Balance Sheet.

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Segments of Operations (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Segment Reporting Information, by Segment

The following tables (in millions) show AFG’s assets, revenues and earnings before income taxes by segment and sub-segment.

	2018		2017		2016
Assets
Property and casualty insurance (a)	$	17,681	$	17,171	$	15,574
Annuity	39,952		37,179		33,409
Other	5,823		6,308		6,089
Total assets	$	63,456	$	60,658	$	55,072

Revenues
Property and casualty insurance:
Premiums earned:
Specialty
Property and transportation	$	1,729		$	1,711	$	1,662
Specialty casualty	2,403			2,186		2,006
Specialty financial	598			576		557
Other specialty	135			106		103
Total premiums earned	4,865			4,579		4,328
Net investment income	438			362		350
Other income (b)	10			28		51
Total property and casualty insurance	5,313			4,969		4,729
Annuity:
Net investment income	1,638			1,458		1,356
Other income	107			103		103
Total annuity	1,745			1,561		1,459
Other	358			330		289
Total revenues before realized gains (losses)	7,416			6,860		6,477
Realized gains (losses) on securities	(266		)	5		19
Realized gains on subsidiaries	—			—		2
Total revenues	$	7,150		$	6,865	$	6,498

(a) Not allocable to sub-segments.

(b) Includes income of $32 million (before noncontrolling interest) from the sale of an apartment property in 2016.

	2018			2017			2016
Earnings Before Income Taxes
Property and casualty insurance:
Underwriting:
Specialty
Property and transportation	$	120		$	154		$	166
Specialty casualty	141			104			78
Specialty financial	66			61			84
Other specialty	(5		)	(2		)	9
Other lines (a)	(20		)	(75		)	(101		)
Total underwriting	302			242			236
Investment and other income, net (b)	407			349			341
Total property and casualty insurance	709			591			577
Annuity	361			380			368
Other (c)	(165		)	(252		)	(179		)
Total earnings before realized gains (losses) and income taxes	905			719			766
Realized gains (losses) on securities	(266		)	5			19
Realized gains on subsidiaries	—			—			2
Total earnings before income taxes	$	639		$	724		$	787

(a) Includes special charges to increase asbestos and environmental (“A&E”) reserves of $18 million, $89 million and $36 million in 2018, 2017 and 2016, respectively. Also includes $18 million in favorable development related to the Neon exited lines recorded in connection with a reinsurance to close transaction in 2017 and a charge of $65 million related to Neon exited lines in 2016.

(b) Includes income of $32 million (before noncontrolling interest) from the sale of an apartment property in 2016.

(c) Primarily holding company interest and expenses, including losses on retirement of debt of $51 million in 2017 and special charges to increase A&E reserves related to AFG’s former railroad and manufacturing operations ($9 million in 2018, $24 million in 2017 and $5 million in 2016).

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Assets and liabilities measured at fair value

Assets and liabilities measured and carried at fair value in the financial statements are summarized below (in millions):

	Level 1		Level 2		Level 3		Total
December 31, 2018
Assets:
Available for sale (“AFS”) fixed maturities:
U.S. Government and government agencies	$	141	$	83	$	9	$	233
States, municipalities and political subdivisions	—		6,880		59		6,939
Foreign government	—		142		—		142
Residential MBS	—		2,547		197		2,744
Commercial MBS	—		864		56		920
Asset-backed securities	—		8,964		847		9,811
Corporate and other	28		19,184		1,996		21,208
Total AFS fixed maturities	169		38,664		3,164		41,997
Trading fixed maturities	9		96		—		105
Equity securities	1,410		68		336		1,814
Equity index call options	—		184		—		184
Assets of managed investment entities (“MIE”)	203		4,476		21		4,700
Variable annuity assets (separate accounts) (*)	—		557		—		557
Other assets — derivatives	—		16		—		16
Total assets accounted for at fair value	$	1,791	$	44,061	$	3,521	$	49,373
Liabilities:
Liabilities of managed investment entities	$	195	$	4,297	$	20	$	4,512
Derivatives in annuity benefits accumulated	—		—		2,720		2,720
Other liabilities — derivatives	—		49		—		49
Total liabilities accounted for at fair value	$	195	$	4,346	$	2,740	$	7,281
December 31, 2017
Assets:
Available for sale fixed maturities:
U.S. Government and government agencies	$	122	$	112	$	8	$	242
States, municipalities and political subdivisions	—		6,975		148		7,123
Foreign government	—		127		—		127
Residential MBS	—		3,105		122		3,227
Commercial MBS	—		926		36		962
Asset-backed securities	—		7,218		744		7,962
Corporate and other	30		17,662		1,044		18,736
Total AFS fixed maturities	152		36,125		2,102		38,379
Trading fixed maturities	44		304		—		348
Equity securities	1,411		86		165		1,662
Equity index call options	—		701		—		701
Assets of managed investment entities	307		4,572		23		4,902
Variable annuity assets (separate accounts) (*)	—		644		—		644
Other assets — derivatives	—		—		—		—
Total assets accounted for at fair value	$	1,914	$	42,432	$	2,290	$	46,636
Liabilities:
Liabilities of managed investment entities	$	293	$	4,372	$	22	$	4,687
Derivatives in annuity benefits accumulated	—		—		2,542		2,542
Other liabilities — derivatives	—		35		—		35
Total liabilities accounted for at fair value	$	293	$	4,407	$	2,564	$	7,264

 (*)   Variable annuity liabilities equal the fair value of variable annuity assets.

Fair value measurements, Levels 1 and 2 transfers

The transfers between Level 1 and Level 2 for the years ended December 31, 2018, 2017 and 2016 are reflected in the table below at fair value as of the end of the reporting period (dollars in millions):

	Level 2 To Level 1 Transfers									Level 1 To Level 2 Transfers
	# of Transfers			Fair Value						# of Transfers			Fair Value
	2018	2017	2016	2018		2017		2016		2018	2017	2016	2018		2017		2016
Perpetual preferred stocks	2	4	6	$	5	$	23	$	35	2	2	7	$	6	$	11	$	28
Common stocks	—	—	3	—		—		—		—	1	2	—		—		—

Unobservable inputs used by management in determining fair value of embedded derivatives

The following table presents information about the unobservable inputs used by management in determining fair value of these Level 3 liabilities. See Note F — “Derivatives.”

Unobservable Input	Range
Adjustment for insurance subsidiary’s credit risk	0.6% – 2.1% over the risk free rate
Risk margin for uncertainty in cash flows	0.73% reduction in the discount rate
Surrenders	3% – 23% of indexed account value
Partial surrenders	2% – 9% of indexed account value
Annuitizations	0.1% – 1% of indexed account value
Deaths	1.5% – 9.5% of indexed account value
Budgeted option costs	2.6% – 3.6% of indexed account value

Changes in asset balances of Level 3 financial assets

Changes in balances of Level 3 financial assets and liabilities carried at fair value during 2018, 2017 and 2016 are presented below (in millions). The transfers into and out of Level 3 were due to changes in the availability of market observable inputs and $29 million of equity securities transferred into Level 3 in the first quarter of 2018 related to a small number of limited partnerships and similar investments carried at cost under the prior guidance that are carried at fair value through net earnings under new guidance adopted on January 1, 2018, as discussed in Note A — “Accounting Policies — Investments.” All transfers are reflected in the table at fair value as of the end of the reporting period.

				Total realized/unrealized gains (losses) included in
	Balance at December 31, 2017			Net earnings			Other comprehensive income (loss)			Purchases and issuances			Sales and settlements			Transfer into Level 3		Transfer out of Level 3			Balance at December 31, 2018
AFS fixed maturities:
U.S. government agency	$	8		$	—		$	—		$	—		$	—		$	1	$	—		$	9
State and municipal	148			—			(2		)	—			(3		)	—		(84		)	59
Residential MBS	122			(9		)	(4		)	—			(21		)	130		(21		)	197
Commercial MBS	36			—			—			20			—			—		—			56
Asset-backed securities	744			(3		)	(15		)	426			(248		)	82		(139		)	847
Corporate and other	1,044			(10		)	(18		)	1,221			(204		)	27		(64		)	1,996
Total AFS fixed maturities	2,102			(22		)	(39		)	1,667			(476		)	240		(308		)	3,164
Equity securities	165			9			—			155			(6		)	30		(17		)	336
Assets of MIE	23			(8		)	—			6			—			—		—			21
Total Level 3 assets	$	2,290		$	(21	)	$	(39	)	$	1,828		$	(482	)	$	270	$	(325	)	$	3,521
Embedded derivatives (a)	$	(2,542	)	$	204		$	—		$	(545	)	$	163		$	—	$	—		$	(2,720	)
Total Level 3 liabilities (b)	$	(2,542	)	$	204		$	—		$	(545	)	$	163		$	—	$	—		$	(2,720	)

(a) Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $44 million in 2018.

(b) As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

				Total realized/unrealized gains (losses) included in
	Balance at December 31, 2016			Net earnings			Other comprehensive income (loss)		Purchases and issuances			Sales and settlements			Transfer into Level 3		Transfer out of Level 3			Balance at December 31, 2017
AFS fixed maturities:
U.S. government agency	$	8		$	—		$	—	$	—		$	—		$	—	$	—		$	8
State and municipal	140			—			2		—			(2		)	10		(2		)	148
Residential MBS	190			(4		)	2		1			(40		)	44		(71		)	122
Commercial MBS	25			2			—		15			(10		)	4		—			36
Asset-backed securities	484			—			1		410			(132		)	202		(221		)	744
Corporate and other	712			(5		)	2		606			(237		)	29		(63		)	1,044
Total AFS fixed maturities	1,559			(7		)	7		1,032			(421		)	289		(357		)	2,102
Equity securities	174			(21		)	10		38			(16		)	—		(20		)	165
Assets of MIE	29			(11		)	—		9			—			—		(4		)	23
Total Level 3 assets	$	1,762		$	(39	)	$	17	$	1,079		$	(437	)	$	289	$	(381	)	$	2,290
Embedded derivatives (a)	$	(1,759	)	$	(589	)	$	—	$	(300	)	$	106		$	—	$	—		$	(2,542	)
Total Level 3 liabilities (b)	$	(1,759	)	$	(589	)	$	—	$	(300	)	$	106		$	—	$	—		$	(2,542	)

(a) Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $25 million in 2017.

(b) As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

				Total realized/unrealized gains (losses) included in
	Balance at December 31, 2015			Net earnings			Other comprehensive income (loss)			Purchases and issuances			Sales and settlements			Transfer into Level 3		Transfer out of Level 3			Balance at December 31, 2016
AFS fixed maturities:
U.S. government agency	$	15		$	(8	)	$	1		$	—		$	—		$	—	$	—		$	8
State and municipal	89			—			(4		)	57			(2		)	—		—			140
Residential MBS	224			(4		)	(2		)	8			(28		)	34		(42		)	190
Commercial MBS	39			(1		)	—			—			(7		)	—		(6		)	25
Asset-backed securities	470			(1		)	1			50			(52		)	60		(44		)	484
Corporate and other	633			—			(10		)	176			(100		)	30		(17		)	712
Total AFS fixed maturities	1,470			(14		)	(14		)	291			(189		)	124		(109		)	1,559
Equity securities	140			(12		)	35			44			(28		)	15		(20		)	174
Assets of MIE	26			(9		)	—			12			—			—		—			29
Total Level 3 assets	$	1,636		$	(35	)	$	21		$	347		$	(217	)	$	139	$	(129	)	$	1,762
Embedded derivatives (a)	$	(1,369	)	$	(211	)	$	—		$	(277	)	$	98		$	—	$	—		$	(1,759	)
Total Level 3 liabilities (b)	$	(1,369	)	$	(211	)	$	—		$	(277	)	$	98		$	—	$	—		$	(1,759	)

(a) Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $17 million in 2016.

(b) As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

Changes in liability balances of Level 3 financial liabilities

Changes in balances of Level 3 financial assets and liabilities carried at fair value during 2018, 2017 and 2016 are presented below (in millions). The transfers into and out of Level 3 were due to changes in the availability of market observable inputs and $29 million of equity securities transferred into Level 3 in the first quarter of 2018 related to a small number of limited partnerships and similar investments carried at cost under the prior guidance that are carried at fair value through net earnings under new guidance adopted on January 1, 2018, as discussed in Note A — “Accounting Policies — Investments.” All transfers are reflected in the table at fair value as of the end of the reporting period.

				Total realized/unrealized gains (losses) included in
	Balance at December 31, 2017			Net earnings			Other comprehensive income (loss)			Purchases and issuances			Sales and settlements			Transfer into Level 3		Transfer out of Level 3			Balance at December 31, 2018
AFS fixed maturities:
U.S. government agency	$	8		$	—		$	—		$	—		$	—		$	1	$	—		$	9
State and municipal	148			—			(2		)	—			(3		)	—		(84		)	59
Residential MBS	122			(9		)	(4		)	—			(21		)	130		(21		)	197
Commercial MBS	36			—			—			20			—			—		—			56
Asset-backed securities	744			(3		)	(15		)	426			(248		)	82		(139		)	847
Corporate and other	1,044			(10		)	(18		)	1,221			(204		)	27		(64		)	1,996
Total AFS fixed maturities	2,102			(22		)	(39		)	1,667			(476		)	240		(308		)	3,164
Equity securities	165			9			—			155			(6		)	30		(17		)	336
Assets of MIE	23			(8		)	—			6			—			—		—			21
Total Level 3 assets	$	2,290		$	(21	)	$	(39	)	$	1,828		$	(482	)	$	270	$	(325	)	$	3,521
Embedded derivatives (a)	$	(2,542	)	$	204		$	—		$	(545	)	$	163		$	—	$	—		$	(2,720	)
Total Level 3 liabilities (b)	$	(2,542	)	$	204		$	—		$	(545	)	$	163		$	—	$	—		$	(2,720	)

(a) Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $44 million in 2018.

(b) As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

				Total realized/unrealized gains (losses) included in
	Balance at December 31, 2016			Net earnings			Other comprehensive income (loss)		Purchases and issuances			Sales and settlements			Transfer into Level 3		Transfer out of Level 3			Balance at December 31, 2017
AFS fixed maturities:
U.S. government agency	$	8		$	—		$	—	$	—		$	—		$	—	$	—		$	8
State and municipal	140			—			2		—			(2		)	10		(2		)	148
Residential MBS	190			(4		)	2		1			(40		)	44		(71		)	122
Commercial MBS	25			2			—		15			(10		)	4		—			36
Asset-backed securities	484			—			1		410			(132		)	202		(221		)	744
Corporate and other	712			(5		)	2		606			(237		)	29		(63		)	1,044
Total AFS fixed maturities	1,559			(7		)	7		1,032			(421		)	289		(357		)	2,102
Equity securities	174			(21		)	10		38			(16		)	—		(20		)	165
Assets of MIE	29			(11		)	—		9			—			—		(4		)	23
Total Level 3 assets	$	1,762		$	(39	)	$	17	$	1,079		$	(437	)	$	289	$	(381	)	$	2,290
Embedded derivatives (a)	$	(1,759	)	$	(589	)	$	—	$	(300	)	$	106		$	—	$	—		$	(2,542	)
Total Level 3 liabilities (b)	$	(1,759	)	$	(589	)	$	—	$	(300	)	$	106		$	—	$	—		$	(2,542	)

(a) Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $25 million in 2017.

(b) As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

				Total realized/unrealized gains (losses) included in
	Balance at December 31, 2015			Net earnings			Other comprehensive income (loss)			Purchases and issuances			Sales and settlements			Transfer into Level 3		Transfer out of Level 3			Balance at December 31, 2016
AFS fixed maturities:
U.S. government agency	$	15		$	(8	)	$	1		$	—		$	—		$	—	$	—		$	8
State and municipal	89			—			(4		)	57			(2		)	—		—			140
Residential MBS	224			(4		)	(2		)	8			(28		)	34		(42		)	190
Commercial MBS	39			(1		)	—			—			(7		)	—		(6		)	25
Asset-backed securities	470			(1		)	1			50			(52		)	60		(44		)	484
Corporate and other	633			—			(10		)	176			(100		)	30		(17		)	712
Total AFS fixed maturities	1,470			(14		)	(14		)	291			(189		)	124		(109		)	1,559
Equity securities	140			(12		)	35			44			(28		)	15		(20		)	174
Assets of MIE	26			(9		)	—			12			—			—		—			29
Total Level 3 assets	$	1,636		$	(35	)	$	21		$	347		$	(217	)	$	139	$	(129	)	$	1,762
Embedded derivatives (a)	$	(1,369	)	$	(211	)	$	—		$	(277	)	$	98		$	—	$	—		$	(1,759	)
Total Level 3 liabilities (b)	$	(1,369	)	$	(211	)	$	—		$	(277	)	$	98		$	—	$	—		$	(1,759	)

(a) Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $17 million in 2016.

(b) As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

Fair value of financial instruments

The carrying value and fair value of financial instruments that are not carried at fair value in the financial statements at December 31 are summarized below (in millions):

	Carrying		Fair Value
	Value		Total		Level 1		Level 2		Level 3
2018
Financial assets:
Cash and cash equivalents	$	1,515	$	1,515	$	1,515	$	—	$	—
Mortgage loans	1,068		1,056		—		—		1,056
Policy loans	174		174		—		—		174
Total financial assets not accounted for at fair value	$	2,757	$	2,745	$	1,515	$	—	$	1,230
Financial liabilities:
Annuity benefits accumulated (*)	$	36,384	$	34,765	$	—	$	—	$	34,765
Long-term debt	1,302		1,231		—		1,228		3
Total financial liabilities not accounted for at fair value	$	37,686	$	35,996	$	—	$	1,228	$	34,768
2017
Financial assets:
Cash and cash equivalents	$	2,338	$	2,338	$	2,338	$	—	$	—
Mortgage loans	1,125		1,119		—		—		1,119
Policy loans	184		184		—		—		184
Total financial assets not accounted for at fair value	$	3,647	$	3,641	$	2,338	$	—	$	1,303
Financial liabilities:
Annuity benefits accumulated (*)	$	33,110	$	32,461	$	—	$	—	$	32,461
Long-term debt	1,301		1,354		—		1,351		3
Total financial liabilities not accounted for at fair value	$	34,411	$	33,815	$	—	$	1,351	$	32,464

(*) Excludes $232 million and $206 million of life contingent annuities in the payout phase at December 31, 2018 and 2017, respectively.

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Investments (Tables)

12 Months Ended

Dec. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Available for sale fixed maturities and equity securities

Available for sale fixed maturities at December 31 consisted of the following (in millions):

	2018												2017
	Amortized Cost		Gross Unrealized					Net Unrealized			Fair Value		Amortized Cost		Gross Unrealized					Net Unrealized			Fair Value
			Gains		Losses										Gains		Losses
Fixed maturities:
U.S. Government and government agencies	$	235	$	1	$	(3	)	$	(2	)	$	233	$	244	$	1	$	(3	)	$	(2	)	$	242
States, municipalities and political subdivisions	6,825		169		(55		)	114			6,939		6,887		254		(18		)	236			7,123
Foreign government	140		2		—			2			142		124		3		—			3			127
Residential MBS	2,476		277		(9		)	268			2,744		2,884		349		(6		)	343			3,227
Commercial MBS	905		17		(2		)	15			920		927		36		(1		)	35			962
Asset-backed securities	9,781		130		(100		)	30			9,811		7,836		142		(16		)	126			7,962
Corporate and other	21,475		167		(434		)	(267		)	21,208		18,136		638		(38		)	600			18,736
Total fixed maturities	$	41,837	$	763	$	(603	)	$	160		$	41,997	$	37,038	$	1,423	$	(82	)	$	1,341		$	38,379

Equity securities reported at fair value

As discussed in Note A — “Accounting Policies — Investments,” AFG implemented new accounting guidance effective on January 1, 2018, which requires all equity securities previously classified as “available for sale” to be reported at fair value, with holding gains and losses recognized in net earnings. Equity securities reported at fair value consisted of the following at December 31, 2018 (in millions):

					Fair Value
					over (under)
	Actual Cost		Fair Value		Cost
Common stocks	$	1,241	$	1,148	$	(93	)
Perpetual preferred stocks	705		666		(39		)
Total equity securities carried at fair value	$	1,946	$	1,814	$	(132	)

Available for sale securities in a continuous unrealized loss position

The following tables show gross unrealized losses (dollars in millions) on available for sale fixed maturities and equity securities by investment category and length of time that individual securities have been in a continuous unrealized loss position at the following balance sheet dates.

	Less Than Twelve Months							Twelve Months or More
	Unrealized Loss			Fair Value		Fair Value as % of Cost		Unrealized Loss			Fair Value		Fair Value as % of Cost
December 31, 2018
Fixed maturities:
U.S. Government and government agencies	$	—		$	41	100	%	$	(3	)	$	120	98	%
States, municipalities and political subdivisions	(23		)	1,497		98	%	(32		)	902		97	%
Foreign government	—			18		100	%	—			4		100	%
Residential MBS	(4		)	279		99	%	(5		)	139		97	%
Commercial MBS	(1		)	147		99	%	(1		)	30		97	%
Asset-backed securities	(77		)	5,406		99	%	(23		)	629		96	%
Corporate and other	(306		)	10,378		97	%	(128		)	2,078		94	%
Total fixed maturities	$	(411	)	$	17,766	98	%	$	(192	)	$	3,902	95	%
December 31, 2017
Fixed maturities:
U.S. Government and government agencies	$	—		$	55	100	%	$	(3	)	$	123	98	%
States, municipalities and political subdivisions	(8		)	825		99	%	(10		)	431		98	%
Foreign government	—			4		100	%	—			—		—	%
Residential MBS	(1		)	118		99	%	(5		)	118		96	%
Commercial MBS	(1		)	67		99	%	—			—		—	%
Asset-backed securities	(7		)	1,195		99	%	(9		)	299		97	%
Corporate and other	(20		)	2,031		99	%	(18		)	603		97	%
Total fixed maturities	$	(37	)	$	4,295	99	%	$	(45	)	$	1,574	97	%
Equity securities:
Common stocks	$	(22	)	$	117	84	%	$	—		$	—	—	%
Perpetual preferred stocks	—			41		100	%	(1		)	13		93	%
Total equity securities	$	(22	)	$	158	88	%	$	(1	)	$	13	93	%

Roll forward of cumulative credit portion of other-than-temporary impairments on fixed maturity securities

A progression of the credit portion of other-than-temporary impairments on fixed maturity securities for which the non-credit portion of an impairment has been recognized in other comprehensive income is shown below (in millions):

	2018			2017			2016
Balance at January 1	$	145		$	153		$	160
Additional credit impairments on:
Previously impaired securities	1			1			2
Securities without prior impairments	1			3			1
Reductions due to sales or redemptions	(5		)	(12		)	(10		)
Balance at December 31	$	142		$	145		$	153

Available for sale fixed maturity securities by contractual maturity date

The table below sets forth the scheduled maturities of available for sale fixed maturities as of December 31, 2018 (dollars in millions). Securities with sinking funds are reported at average maturity. Actual maturities may differ from contractual maturities because certain securities may be called or prepaid by the issuers.

	Amortized		Fair Value
	Cost		Amount		%
Maturity
One year or less	$	1,310	$	1,318	3	%
After one year through five years	8,521		8,554		20	%
After five years through ten years	14,235		14,044		34	%
After ten years	4,609		4,606		11	%
	28,675		28,522		68	%
ABS (average life of approximately 4.5 years)	9,781		9,811		23	%
MBS (average life of approximately 4.5 years)	3,381		3,664		9	%
Total	$	41,837	$	41,997	100	%

Components of the net unrealized gain on securities, included in Accumulated Other Comprehensive Income

The following table shows (in millions) the components of the net unrealized gain on securities that is included in AOCI in AFG’s Balance Sheet.

	Pretax			Deferred Tax			Net
December 31, 2018
Net unrealized gain on:
Fixed maturities — annuity segment (a)	$	101		$	(21	)	$	80
Fixed maturities — all other	59			(13		)	46
Total fixed maturities	160			(34		)	126
Deferred policy acquisition costs — annuity segment	(42		)	9			(33		)
Annuity benefits accumulated	(14		)	3			(11		)
Unearned revenue	1			—			1
Total net unrealized gain on marketable securities	$	105		$	(22	)	$	83
December 31, 2017
Net unrealized gain on:
Fixed maturities — annuity segment (a)	$	1,082		$	(227	)	$	855
Fixed maturities — all other	259			(55		)	204
Total fixed maturities	1,341			(282		)	1,059
Equity securities (b)	279			(58		)	221
Total investments	1,620			(340		)	1,280
Deferred policy acquisition costs — annuity segment	(433		)	91			(342		)
Annuity benefits accumulated	(137		)	29			(108		)
Unearned revenue	13			(3		)	10
Total net unrealized gain on marketable securities	$	1,063		$	(223	)	$	840

(a) Net unrealized gains on fixed maturity investments supporting AFG’s annuity benefits accumulated.

(b) As discussed in Note A — “Accounting Policies — Investments,” effective January 1, 2018, all equity securities other than those accounted for under the equity method are carried at fair value through net earnings.

Net investment income earned and investment expenses incurred

The following table shows (in millions) investment income earned and investment expenses incurred.

	2018			2017			2016
Investment income:
Fixed maturities	$	1,742		$	1,607		$	1,510
Equity securities:
Dividends	79			73			77
Change in fair value (*)	22			6			4
Equity in earnings of partnerships and similar investments	161			64			44
Other	112			102			81
Gross investment income	2,116			1,852			1,716
Investment expenses	(22		)	(21		)	(20		)
Net investment income	$	2,094		$	1,831		$	1,696

(*) As discussed in Note A — “Accounting Policies — Investments,” AFG adopted guidance in January 2018 that requires all equity securities other than those accounted for under the equity method to be reported at fair value with holding gains and losses recognized in net earnings. Although the change in the fair value of the majority of AFG’s equity securities is recorded in realized gains (losses) on securities, AFG records holding gains and losses in net investment income on equity securities classified as “trading” under the previous guidance and on a small portfolio of limited partnership and similar investments that do not qualify for the equity method of accounting.

Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments

Realized gains (losses) and changes in unrealized appreciation (depreciation) included in AOCI related to fixed maturity and equity security investments are summarized as follows (in millions):

	2018												2017
	Realized gains (losses)												Realized gains (losses)
	Before Impairments			Impairments			Total			Change in Unrealized			Before Impairments			Impairments			Total			Change in Unrealized
Fixed maturities	$	6		$	(26	)	$	(20	)	$	(1,181	)	$	17		$	(20	)	$	(3	)	$	532
Equity securities	(265		)	—			(265		)	—			70			(64		)	6			128
Mortgage loans and other investments	1			—			1			—			(6		)	(4		)	(10		)	—
Other (*)	11			7			18			502			(3		)	15			12			(219		)
Total pretax	(247		)	(19		)	(266		)	(679		)	78			(73		)	5			441
Tax effects:
Reclassify impact of U.S. corporate tax rate change	—			—			—			—			—			—			—			149
Other	52			4			56			143			(27		)	25			(2		)	(154		)
Total tax effects	52			4			56			143			(27		)	25			(2		)	(5		)
Net of tax	$	(195	)	$	(15	)	$	(210	)	$	(536	)	$	51		$	(48	)	$	3		$	436

	2016
	Realized gains (losses)
	Before Impairments			Impairments			Total			Change in Unrealized
Fixed maturities	$	36		$	(38	)	$	(2	)	$	90
Equity securities	106			(93		)	13			67
Other (*)	(7		)	15			8			(52		)
Total pretax	135			(116		)	19			105
Tax effects	(48		)	41			(7		)	(37		)
Noncontrolling interests	(2		)	3			1			4
Net of tax and noncontrolling interests	$	85		$	(72	)	$	13		$	72

(*) Primarily adjustments to deferred policy acquisition costs and reserves related to the annuity business.

Holding gains (losses) on equity securities still held

As discussed in Note A — “Accounting Policies — Investments,” effective January 1, 2018, all equity securities other than those accounted for under the equity method are carried at fair value through net earnings. AFG recorded net holding gains (losses) on equity securities during 2018 on securities that were still owned at December 31, 2018 as follows (in millions):

	2018
Included in realized gains (losses)	$	(279	)
Included in net investment income	22
	$	(257	)

Gross realized gains and losses on available for sale fixed maturity and equity security investments

Gross realized gains and losses (excluding impairment write-downs and mark-to-market of derivatives) on available for sale fixed maturity investment transactions consisted of the following (in millions):

	2018			2017			2016
Fixed maturities:
Gross gains	$	22		$	43		$	55
Gross losses	(14		)	(20		)	(10		)

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Derivatives (Tables)

12 Months Ended

Dec. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives included in Balance Sheet at fair value

The following derivatives that do not qualify for hedge accounting under GAAP are included in AFG’s Balance Sheet at fair value (in millions):

		December 31, 2018				December 31, 2017
Derivative	Balance Sheet Line	Asset		Liability		Asset		Liability
MBS with embedded derivatives	Fixed maturities	$	109	$	—	$	105	$	—
Public company warrants	Equity securities	—		—		4		—
Fixed-indexed and variable-indexed annuities (embedded derivative)	Annuity benefits accumulated	—		2,720		—		2,542
Equity index call options	Equity index call options	184		—		701		—
Equity index put options	Other liabilities	—		1		—		—
Reinsurance contract (embedded derivative)	Other liabilities	—		2		—		4
		$	293	$	2,723	$	810	$	2,546

Summary of gain (loss) included in the Statement of Earnings for changes in the fair value of derivatives

The following table summarizes the gains (losses) included in AFG’s Statement of Earnings for changes in the fair value of derivatives that do not qualify for hedge accounting for 2018, 2017 and 2016 (in millions):

Derivative	Statement of Earnings Line	2018			2017			2016
MBS with embedded derivatives	Realized gains (losses) on securities	$	(7	)	$	(6	)	$	(9	)
Public company warrants	Realized gains (losses) on securities	(3		)	—			—
Fixed-indexed and variable-indexed annuities (embedded derivative) (*)	Annuity benefits	204			(589		)	(211		)
Equity index call options	Annuity benefits	(298		)	494			141
Equity index put options	Annuity benefits	(1		)	—			—
Reinsurance contracts (embedded derivative)	Net investment income	2			(2		)	(1		)
		$	(103	)	$	(103	)	$	(80	)

(*) The change in fair value of the embedded derivative includes losses related to unlocking of actuarial assumptions of $44 million in 2018, $25 million in 2017 and $17 million in 2016.

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Deferred Policy Acquisition Costs (Tables)

12 Months Ended

Dec. 31, 2018

Deferred Policy Acquisition Costs Disclosures [Abstract]

Deferred Policy Acquisition Costs Details

A progression of deferred policy acquisition costs is presented below (in millions):

	P&C			Annuity and Run-off Long-term Care and Life
	Deferred			Deferred			Sales															Consolidated
	Costs			Costs			Inducements			PVFP			Subtotal			Unrealized (*)			Total			Total
Balance at December 31, 2015	$	226		$	1,018		$	119		$	55		$	1,192		$	(234	)	$	958		$	1,184
Additions	535			230			9			—			239			—			239			774
Amortization:
Periodic amortization	(520		)	(169		)	(24		)	(9		)	(202		)	—			(202		)	(722		)
Annuity unlocking	—			25			4			—			29			—			29			29
Included in realized gains	—			6			2			—			8			—			8			8
Foreign currency translation	(3		)	—			—			—			—			—			—			(3		)
Change in unrealized	—			—			—			—			—			(31		)	(31		)	(31		)
Balance at December 31, 2016	238			1,110			110			46			1,266			(265		)	1,001			1,239
Additions	588			225			4			—			229			—			229			817
Amortization:
Periodic amortization	(556		)	(161		)	(19		)	(8		)	(188		)	—			(188		)	(744		)
Annuity unlocking	—			34			6			1			41			—			41			41
Included in realized gains	—			9			1			—			10			—			10			10
Foreign currency translation	—			—			—			—			—			—			—			—
Other	—			—			—			10			10			—			10			10
Change in unrealized	—			—			—			—			—			(157		)	(157		)	(157		)
Balance at December 31, 2017	270			1,217			102			49			1,368			(422		)	946			1,216
Additions	675			263			2			—			265			—			265			940
Amortization:
Periodic amortization	(644		)	(238		)	(19		)	(7		)	(264		)	—			(264		)	(908		)
Annuity unlocking	—			29			—			—			29			—			29			29
Included in realized gains	—			14			1			—			15			—			15			15
Foreign currency translation	(2		)	—			—			—			—			—			—			(2		)
Change in unrealized	—			—			—			—			—			392			392			392
Balance at December 31, 2018	$	299		$	1,285		$	86		$	42		$	1,413		$	(30	)	$	1,383		$	1,682

(*) Adjustments to DPAC related to net unrealized gains/losses on securities and cash flow hedges.

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Managed Investment Entities (Tables)

12 Months Ended

Dec. 31, 2018

Variable Interest Entity, Primary Beneficiary, Does Not Hold Majority Voting Interest, Disclosures [Abstract]

Selected financial information related to collateralized loan obligations

Selected financial information related to the CLOs is shown below (in millions):

	Year ended December 31,
	2018			2017			2016
Investment in CLO tranches	$	188		$	215		$	216
Gains (losses) on change in fair value of assets/liabilities (a):
Assets	(189		)	(8		)	131
Liabilities	168			20			(116		)
Management fees paid to AFG	16			18			17
CLO earnings attributable to AFG Shareholders (b)	7			23			37

(a) Included in revenues in AFG’s Statement of Earnings.

(b) Included in earnings before income taxes in AFG’s Statement of Earnings.

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Goodwill and Other Intangibles (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying value of goodwill by reporting segment

Changes in the carrying value of goodwill during 2016, 2017 and 2018, by reporting segment, are presented in the following table (in millions):

	Property and Casualty		Annuity		Total
Balance at January 1, 2016, December 31, 2016 and December 31, 2017	$	168	$	31	$	199
Acquisition of subsidiary in 2018	8		—		8
Balance at December 31, 2018	$	176	$	31	$	207

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Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Schedule of long-term debt instruments

Long-term debt consisted of the following at December 31 (in millions):

	2018							2017
	Principal		Discount and Issue Costs			Carrying Value		Principal		Discount and Issue Costs			Carrying Value
Direct Senior Obligations of AFG:
4.50% Senior Notes due June 2047	$	590	$	(2	)	$	588	$	590	$	(2	)	$	588
3.50% Senior Notes due August 2026	425		(4		)	421		425		(5		)	420
Other	3		—			3		3		—			3
	1,018		(6		)	1,012		1,018		(7		)	1,011
Direct Subordinated Obligations of AFG:
6-1/4% Subordinated Debentures due September 2054	150		(5		)	145		150		(5		)	145
6% Subordinated Debentures due November 2055	150		(5		)	145		150		(5		)	145
	300		(10		)	290		300		(10		)	290
	$	1,318	$	(16	)	$	1,302	$	1,318	$	(17	)	$	1,301

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Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2018

Stockholders' Equity Note [Abstract]

Summary of restricted stock awards activity

The restricted Common Stock that AFG has granted generally vests over a three or four year period. Data relating to grants of restricted stock is presented below:

	Shares		Average Grant Date Fair Value
Outstanding at January 1, 2018	759,035		$	73.40
Granted	200,625		$	112.86
Vested	(86,177	)	$	56.89
Forfeited	(7,553	)	$	87.47
Outstanding at December 31, 2018	865,930		$	84.06

Summary of stock options activity

Data for stock options issued under AFG’s stock incentive plans is presented below:

	Shares		Average Exercise Price		Average Remaining Contractual Term	Aggregate Intrinsic Value (in millions)
Outstanding at January 1, 2018	3,467,340		$	45.80
Exercised	(778,270	)	$	37.66
Forfeited/Cancelled	(21,628	)	$	42.10
Outstanding at December 31, 2018	2,667,442		$	48.20	4.2 years	$	113
Options exercisable at December 31, 2018	2,253,003		$	45.95	3.9 years	$	100

Components of accumulated other comprehensive income (loss)

The progression of the components of accumulated other comprehensive income follows (in millions):

				Other Comprehensive Income (Loss)
	AOCI Beginning Balance			Pretax			Tax			Net of tax			Attributable to noncontrolling interests			Attributable to shareholders			Other (c)			AOCI Ending Balance
Year ended December 31, 2018
Net unrealized gains (losses) on securities:
Unrealized holding losses on securities arising during the period				$	(689	)	$	145		$	(544	)	$	—		$	(544	)
Reclassification adjustment for realized (gains) losses included in net earnings (a)				10			(2		)	8			—			8
Total net unrealized gains (losses) on securities (b)	$	840		(679		)	143			(536		)	—			(536		)	$	(221	)	$	83
Net unrealized gains (losses) on cash flow hedges	(13		)	2			—			2			—			2			—			(11		)
Foreign currency translation adjustments	(6		)	(9		)	(1		)	(10		)	—			(10		)	—			(16		)
Pension and other postretirement plans adjustments	(8		)	—			—			—			—			—			—			(8		)
Total	$	813		$	(686	)	$	142		$	(544	)	$	—		$	(544	)	$	(221	)	$	48
Year ended December 31, 2017
Net unrealized gains on securities:
Unrealized holding gains on securities arising during the period				$	456		$	(159	)	$	297		$	—		$	297
Reclassification adjustment for realized (gains) losses included in net earnings (a)				(15		)	5			(10		)	—			(10		)
Total net unrealized gains on securities (b)	$	404		441			(154		)	287			—			287			$	149		$	840
Net unrealized losses on cash flow hedges	(7		)	(6		)	2			(4		)	—			(4		)	(2		)	(13		)
Foreign currency translation adjustments	(15		)	9			3			12			—			12			(3		)	(6		)
Pension and other postretirement plans adjustments	(7		)	1			—			1			—			1			(2		)	(8		)
Total	$	375		$	445		$	(149	)	$	296		$	—		$	296		$	142		$	813
Year ended December 31, 2016
Net unrealized gains on securities:
Unrealized holding gains on securities arising during the period				$	124		$	(44	)	$	80		$	(4	)	$	76
Reclassification adjustment for realized (gains) losses included in net earnings (a)				(19		)	7			(12		)	(1		)	(13		)
Total net unrealized gains on securities (b)	$	332		105			(37		)	68			(5		)	63			$	9		$	404
Net unrealized gains (losses) on cash flow hedges	1			(12		)	4			(8		)	—			(8		)	—			(7		)
Foreign currency translation adjustments	(22		)	6			1			7			—			7			—			(15		)
Pension and other postretirement plans adjustments	(7		)	—			—			—			—			—			—			(7		)
Total	$	304		$	99		$	(32	)	$	67		$	(5	)	$	62		$	9		$	375

(a)    The reclassification adjustment out of net unrealized gains on securities affected the following lines in AFG’s Statement of Earnings:

OCI component	Affected line in the statement of earnings
Pretax	Realized gains (losses) on securities
Tax	Provision for income taxes
Attributable to noncontrolling interests	Net earnings attributable to noncontrolling interests

(b) Includes net unrealized gains of $58 million at December 31, 2018 compared to net unrealized gains of $68 million and $52 million at December 31, 2017 and 2016, related to securities for which only the credit portion of an other-than-temporary impairment has been recorded in earnings.

(c) On January 1, 2018, AFG adopted new guidance that requires all equity securities other than those accounted for under the equity method to be reported at fair value with holding gains and losses recognized in net earnings. At the date of adoption, the $221 million net unrealized gain on equity securities classified as available for sale (with unrealized holding gains and losses reported in AOCI) under the prior guidance was reclassified from AOCI to retained earnings as the cumulative effect of an accounting change. Other also includes the December 2017 reclassification of $145 million stranded in AOCI from accounting for the Tax Cuts and Jobs Act of 2017 to retained earnings (see Note A — “Accounting Policies — Income Taxes”), the impact on AOCI of the December 2017 sale of redeemable noncontrolling interests in Neon and the November 2016 acquisition of the noncontrolling interest in NATL (see Note B — “Acquisitions and Sale of Businesses”).

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Reconciliation of income taxes at the statutory rate and income taxes shown in the Statement of Earnings

The following is a reconciliation of income taxes at the statutory rate (21% in 2018 and 35% in both 2017 and 2016) to the provision for income taxes as shown in AFG’s Statement of Earnings (dollars in millions):

	2018					2017					2016
	Amount			% of EBT		Amount			% of EBT		Amount			% of EBT
Earnings before income taxes (“EBT”)	$	639				$	724				$	787
Income taxes at statutory rate	$	134		21	%	$	253		35	%	$	275		35	%
Effect of:
Tax exempt interest	(13		)	(2	%)	(23		)	(3	%)	(24		)	(3	%)
Adjustment to prior year taxes	(8		)	(1	%)	(4		)	(1	%)	(2		)	—	%
Stock-based compensation	(8		)	(1	%)	(16		)	(2	%)	(9		)	(1	%)
Dividend received deduction	(4		)	(1	%)	(8		)	(1	%)	(7		)	(1	%)
Employee stock ownership plan dividend paid deduction	(3		)	(1	%)	(5		)	(1	%)	(2		)	—	%
Foreign operations	(2		)	—	%	21			3	%	5			—	%
Change in valuation allowance (excluding change in tax rate)	11			2	%	(7		)	(1	%)	52			7	%
Nondeductible expenses	7			1	%	6			1	%	7			1	%
Neon restructuring	—			—	%	(56		)	(8	%)	(111		)	(14	%)
Change in U.S corporate tax rate	—			—	%	83			11	%	—			—	%
Acquisition of noncontrolling interest in NATL	—			—	%	—			—	%	(66		)	(8	%)
Subsidiaries not in AFG’s tax return	—			—	%	—			—	%	3			—	%
Other	8			1	%	3			1	%	(2		)	(1	%)
Provision for income taxes as shown in the statement of earnings	$	122		19	%	$	247		34	%	$	119		15	%

Components of income tax provision (credit)

The total income tax provision (credit) consists of (in millions):

	2018			2017		2016
Current taxes:
Federal	$	196		$	153	$	299
State	8			6		12
Deferred taxes:
Federal	(82		)	5		(192		)
Impact of change in U.S. corporate tax rate	—			83		—
Total Federal deferred taxes	(82		)	88		(192		)
Provision for income taxes	$	122		$	247	$	119

Summary of operating loss carryforwards

For income tax purposes, AFG and its subsidiaries had the following carryforwards available at December 31, 2018 (in millions):

	Expiring	Amount
Operating Loss – U.S.	2019 - 2022	$	112
Operating Loss – United Kingdom	indefinite	215		(*)

(*) £168 million

Components of deferred tax assets and liabilities

Deferred income tax assets and liabilities reflect temporary differences between the carrying amounts of assets and liabilities recognized for financial reporting purposes and the amounts recognized for tax purposes. The significant components of deferred tax assets and liabilities included in AFG’s Balance Sheet at December 31 were as follows (in millions):

	2018									2017
	Excluding Unrealized Gains			Impact of Unrealized Gains			Total			Excluding Unrealized Gains			Impact of Unrealized Gains			Total
Deferred tax assets:
Federal net operating loss carryforwards	$	23		$	—		$	23		$	27		$	—		$	27
Foreign underwriting losses	93			—			93			80			—			80
Capital loss carryforwards	—			—			—			32			—			32
Insurance claims and reserves	740			3			743			665			29			694
Employee benefits	88			—			88			84			—			84
Other, net	44			—			44			48			(3		)	45
Total deferred tax assets before valuation allowance	988			3			991			936			26			962
Valuation allowance against deferred tax assets	(119		)	—			(119		)	(109		)	—			(109		)
Total deferred tax assets	869			3			872			827			26			853
Deferred tax liabilities:
Investment securities	(36		)	(34		)	(70		)	(1		)	(340		)	(341		)
Deferred policy acquisition costs	(300		)	9			(291		)	(293		)	91			(202		)
Insurance claims and reserves transition liability	(110		)	—			(110		)	(128		)	—			(128		)
Real estate, property and equipment	(36		)	—			(36		)	(35		)	—			(35		)
Total deferred tax liabilities	(482		)	(25		)	(507		)	(457		)	(249		)	(706		)
Net deferred tax asset (liability)	$	387		$	(22	)	$	365		$	370		$	(223	)	$	147

Progression of the liability for uncertain tax positions, excluding interest and penalties

A progression of the liability for uncertain tax positions, excluding interest and penalties, follows (in millions):

	2018		2017			2016
Balance at January 1	$	—	$	1		$	1
Additions for tax positions of prior years	—		—			—
Reductions for tax positions of prior years	—		—			—
Additions for tax positions of current year	—		—			—
Settlements	—		(1		)	—
Balance at December 31	$	—	$	—		$	1

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Quarterly Operating Results (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly operating results

The following are quarterly results of consolidated operations for the two years ended December 31, 2018 (in millions, except per share amounts). Quarterly earnings per share do not add to year-to-date amounts due to changes in shares outstanding.

	1st Quarter		2nd Quarter		3rd Quarter		4th Quarter			Total Year
2018
Revenues	$	1,619	$	1,833	$	2,008	$	1,690		$	7,150
Net earnings (losses), including noncontrolling interests	141		208		203		(35		)	517
Net earnings (losses) attributable to shareholders	145		210		204		(29		)	530
Earnings (losses) attributable to shareholders per Common Share:
Basic	$	1.64	$	2.36	$	2.30	$	(0.33	)	$	5.95
Diluted	1.60		2.31		2.26		(0.33		)	5.85
Average number of Common Shares:
Basic	88.6		89.0		89.1		89.3			89.0
Diluted	90.4		90.7		90.7		89.3			90.6
2017
Revenues	$	1,576	$	1,646	$	1,835	$	1,808		$	6,865
Net earnings, including noncontrolling interests	155		145		11		166			477
Net earnings attributable to shareholders	153		145		11		166			475
Earnings attributable to shareholders per Common Share:
Basic	$	1.76	$	1.64	$	0.13	$	1.88		$	5.40
Diluted	1.72		1.61		0.13		1.84			5.28
Average number of Common Shares:
Basic	87.2		87.8		88.1		88.2			87.8
Diluted	89.3		89.8		90.0		90.1			89.8

Quarterly information on realized gains (losses) and favorable (unfavorable) development on unpaid loss and loss adjustment expenses

Pretax realized gains on subsidiaries and securities (including other-than-temporary impairments), favorable (adverse) prior year development of AFG’s liability for losses and loss adjustment expenses (“LAE”) and the impact of derivatives related to fixed-indexed and variable-indexed annuities (“FIAs”) were as follows (in millions):

	1st Quarter			2nd Quarter			3rd Quarter			4th Quarter			Total Year
Realized Gains (Losses) on Securities and Subsidiaries
2018 – change in fair value of equity securities	$	(95	)	$	23		$	33		$	(223	)	$	(262	)
2018 – other realized gains (losses)	2			8			1			(15		)	(4		)
2017	3			8			(12		)	6			5
Prior Year Development Favorable (Adverse)
2018	$	56		$	44		$	31		$	61		$	192
2017	28			22			(52		)	66			64
Impact of Derivatives related to FIAs Favorable (Adverse)
2018	$	13		$	3		$	(2	)	$	(47	)	$	(33	)
2017	(2		)	(16		)	(4		)	(11		)	(33		)

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Insurance (Tables)

12 Months Ended

Dec. 31, 2018

Insurance [Abstract]

Reconciliation of beginning and ending liability for unpaid losses and loss adjustment expenses

The following table provides an analysis of changes in the liability for losses and loss adjustment expenses over the past three years (in millions):

	2018			2017			2016
Balance at beginning of period	$	9,678		$	8,563		$	8,127
Less reinsurance recoverables, net of allowance	2,957			2,302			2,201
Net liability at beginning of period	6,721			6,261			5,926
Provision for losses and LAE occurring in the current year	3,195			3,019			2,730
Net increase (decrease) in the provision for claims of prior years:
Special A&E charges	18			89			36
Neon exited lines charge	—			(18		)	57
Other	(210		)	(135		)	(61		)
Total losses and LAE incurred	3,003			2,955			2,762
Payments for losses and LAE of:
Current year	(963		)	(942		)	(841		)
Prior years	(1,639		)	(1,586		)	(1,512		)
Total payments	(2,602		)	(2,528		)	(2,353		)
Reserves of businesses disposed (*)	(319		)	—			(40		)
Foreign currency translation and other	(4		)	33			(34		)
Net liability at end of period	6,799			6,721			6,261
Add back reinsurance recoverables, net of allowance	2,942			2,957			2,302
Gross unpaid losses and LAE included in the balance sheet	$	9,741		$	9,678		$	8,563

(*) Reflects the reinsurance to close transactions at Neon (discussed below).

Short-duration insurance contracts, reconciliation of claims development to liability

A reconciliation of incurred and paid claims development information to the aggregate carrying amount of the liability for unpaid losses and LAE, with separate disclosure of reinsurance recoverables on unpaid claims is shown below (in millions):

	2018
Unpaid losses and allocated LAE, net of reinsurance:
Specialty
Property and transportation	$	1,117
Specialty casualty	3,884
Specialty financial	225
Other specialty	280
Total Specialty (excluding foreign reserves)	5,506
Other reserves
Reserves for foreign operations:
Neon Lloyd’s business	265
Other subsidiaries	268
A&E reserves	395
Unallocated LAE	335
Other	30
Total other reserves	1,293
Total reserves, net of reinsurance	6,799
Add back reinsurance recoverables, net of allowance	2,942
Gross unpaid losses and LAE included in the balance sheet	$	9,741

Short-duration insurance contracts, claims development

The following claims development tables and associated disclosures related to short-duration insurance contracts are prepared by sub-segment within the property and casualty insurance business for the most recent 10 accident years. AFG determines its claim counts at the claimant or policy feature level depending on the particular facts and circumstances of the underlying claim. While the methodology is generally consistent within each sub-segment, there are minor differences between and within the sub-segments. The methods used to summarize claim counts have not changed significantly over the time periods reported in the tables below.

Property and transportation
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	503	$	487	$	505	$	498	$	494	$	494	$	491	$	491	$	491	$	490	$	2	138,248
2010			680		640		646		654		656		657		661		659		657		3		138,235
2011					816		803		819		833		844		856		853		850		6		139,345
2012							875		866		880		892		905		900		897		13		145,636
2013									894		881		884		890		890		890		18		141,293
2014											856		842		831		834		831		25		136,259
2015													831		794		789		789		36		134,484
2016															762		730		733		74		122,623
2017																	904		868		128		140,963
2018																			952		277		119,817
																	Total		$	7,957

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (a)
2009	$	219	$	333	$	397	$	440	$	462	$	476	$	480	$	481	$	484	$	485	99.0	%
2010			316		487		536		597		627		638		643		648		650		98.9	%
2011					367		670		732		777		810		828		836		839		98.7	%
2012							574		715		780		826		852		866		892		99.4	%
2013									440		710		769		814		843		859		96.5	%
2014											332		638		702		756		784		94.3	%
2015													361		587		675		717		90.9	%
2016															296		528		590		80.5	%
2017																	383		648		74.7	%
2018																			399		41.9	%
																	Total		$	6,863
									Unpaid losses and LAE — years 2009 through 2018										1,094
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																23
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	1,117

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	46.2	%	28.7	%	8.6	%	6.5	%	3.7	%	2.0	%	1.4	%	0.4	%	0.5	%	0.2	%
Cumulative	46.2	%	74.9	%	83.5	%	90.0	%	93.7	%	95.7	%	97.1	%	97.5	%	98.0	%	98.2	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Specialty casualty
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	888	$	887	$	864	$	844	$	833	$	828	$	829	$	824	$	820	$	811	$	34	56,985
2010			870		886		887		865		879		868		867		864		853		47		56,411
2011					847		845		833		842		827		822		819		811		52		53,385
2012							890		883		876		876		872		867		838		64		51,885
2013									956		938		933		928		933		913		99		51,620
2014											1,023		994		994		992		966		139		54,494
2015													1,068		1,033		1,031		1,030		185		55,468
2016															1,115		1,108		1,097		313		53,038
2017																	1,196		1,200		539		52,658
2018																			1,257		705		48,996
																	Total		$	9,776

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (a)
2009	$	170	$	381	$	510	$	591	$	653	$	691	$	715	$	731	$	740	$	748	92.2	%
2010			191		411		559		644		699		735		756		770		782		91.7	%
2011					172		380		517		606		655		687		707		725		89.4	%
2012							171		378		508		611		674		713		735		87.7	%
2013									180		388		545		656		717		754		82.6	%
2014											187		406		565		668		741		76.7	%
2015													176		406		569		692		67.2	%
2016															184		411		571		52.1	%
2017																	196		414		34.5	%
2018																			207		16.5	%
																	Total		$	6,369
									Unpaid losses and LAE — years 2009 through 2018										3,407
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																477
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	3,884

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	19.1	%	23.2	%	16.2	%	11.1	%	7.0	%	4.3	%	2.6	%	1.9	%	1.3	%	1.0	%
Cumulative	19.1	%	42.3	%	58.5	%	69.6	%	76.6	%	80.9	%	83.5	%	85.4	%	86.7	%	87.7	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Specialty financial
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	192	$	192	$	186	$	184	$	188	$	186	$	187	$	186	$	185	$	186	$	1	27,431
2010			138		145		132		132		135		133		130		127		126		1		21,922
2011					138		157		155		153		147		144		143		139		6		16,368
2012							163		163		151		139		137		135		132		6		21,064
2013									140		145		137		131		127		126		9		28,449
2014											146		157		156		153		147		9		29,411
2015													156		160		158		153		16		37,483
2016															179		184		187		24		44,820
2017																	212		215		34		46,921
2018																			212		79		36,606
																	Total		$	1,623

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018			% (a)
2009	$	112	$	145	$	157	$	166	$	171	$	181	$	185	$	186	$	186	$	185		99.5	%
2010			61		93		104		122		132		130		128		126		126			100.0	%
2011					58		111		115		123		130		131		131		132			95.0	%
2012							71		104		109		117		121		126		128			97.0	%
2013									70		100		107		113		117		117			92.9	%
2014											62		109		125		128		137			93.2	%
2015													72		110		129		133			86.9	%
2016															88		141		158			84.5	%
2017																	120		169			78.6	%
2018																			112			52.8	%
																	Total		$	1,397
									Unpaid losses and LAE — years 2009 through 2018										226
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																(1		)
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	225

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	50.5	%	26.4	%	7.5	%	5.8	%	4.7	%	1.7	%	0.5	%	(0.1	%)	—	%	(0.5	%)
Cumulative	50.5	%	76.9	%	84.4	%	90.2	%	94.9	%	96.6	%	97.1	%	97.0	%	97.0	%	96.5	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Other specialty
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims (a)
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	41	$	41	$	41	$	40	$	37	$	37	$	36	$	38	$	33	$	32	$	6	—
2010			36		39		40		39		40		40		40		40		40		3		—
2011					39		43		42		43		43		44		44		43		3		—
2012							42		40		39		40		41		39		39		6		—
2013									46		47		46		47		50		53		2		—
2014											58		57		59		59		60		13		—
2015													59		60		63		66		8		—
2016															61		61		65		21		—
2017																	63		65		36		—
2018																			86		62		—
																	Total		$	549

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (b)
2009	$	8	$	12	$	15	$	19	$	22	$	22	$	24	$	26	$	25	$	27	84.4	%
2010			8		14		21		24		27		33		35		36		37		92.5	%
2011					12		20		25		28		34		36		37		38		88.4	%
2012							8		17		21		25		28		30		30		76.9	%
2013									7		16		22		34		37		44		83.0	%
2014											13		21		30		36		43		71.7	%
2015													10		26		31		50		75.8	%
2016															9		19		31		47.7	%
2017																	10		19		29.2	%
2018																			12		14.0	%
																	Total		$	331
									Unpaid losses and LAE — years 2009 through 2018										218
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																62
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	280

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	18.7	%	17.0	%	12.6	%	14.1	%	9.3	%	7.6	%	3.4	%	3.7	%	(0.3	%)	6.3	%
Cumulative	18.7	%	35.7	%	48.3	%	62.4	%	71.7	%	79.3	%	82.7	%	86.4	%	86.1	%	92.4	%

(a) The amounts shown in Other specialty represent business assumed by AFG’s internal reinsurance program from the operations that make up AFG’s other Specialty property and casualty insurance sub-segments. Accordingly, the liability for incurred claims and allocated LAE represents additional reserves held on claims counted in the tables provided for the other sub-segments (above).

(b) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Total Specialty Group
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	1,624	$	1,607	$	1,596	$	1,566	$	1,552	$	1,545	$	1,543	$	1,539	$	1,529	$	1,519	$	43	222,664
2010			1,724		1,710		1,705		1,690		1,710		1,698		1,698		1,690		1,676		54		216,568
2011					1,840		1,848		1,849		1,871		1,861		1,866		1,859		1,843		67		209,098
2012							1,970		1,952		1,946		1,947		1,955		1,941		1,906		89		218,585
2013									2,036		2,011		2,000		1,996		2,000		1,982		128		221,362
2014											2,083		2,050		2,040		2,038		2,004		186		220,164
2015													2,114		2,047		2,041		2,038		245		227,435
2016															2,117		2,083		2,082		432		220,481
2017																	2,375		2,348		737		240,542
2018																			2,507		1,123		205,419
																	Total		$	19,905

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (a)
2009	$	509	$	871	$	1,079	$	1,216	$	1,308	$	1,370	$	1,404	$	1,424	$	1,435	$	1,445	95.1	%
2010			576		1,005		1,220		1,387		1,485		1,536		1,562		1,580		1,595		95.2	%
2011					609		1,181		1,389		1,534		1,629		1,682		1,711		1,734		94.1	%
2012							824		1,214		1,418		1,579		1,675		1,735		1,785		93.7	%
2013									697		1,214		1,443		1,617		1,714		1,774		89.5	%
2014											594		1,174		1,422		1,588		1,705		85.1	%
2015													619		1,129		1,404		1,592		78.1	%
2016															577		1,099		1,350		64.8	%
2017																	709		1,250		53.2	%
2018																			730		29.1	%
																	Total		$	14,960
									Unpaid losses and LAE — years 2009 through 2018										4,945
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																561
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	5,506

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	32.6	%	25.5	%	12.2	%	8.8	%	5.5	%	3.2	%	2.0	%	1.2	%	0.8	%	0.7	%
Cumulative	32.6	%	58.1	%	70.3	%	79.1	%	84.6	%	87.8	%	89.8	%	91.0	%	91.8	%	92.5	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Short-duration insurance contracts, schedule of historical claims duration

The following claims development tables and associated disclosures related to short-duration insurance contracts are prepared by sub-segment within the property and casualty insurance business for the most recent 10 accident years. AFG determines its claim counts at the claimant or policy feature level depending on the particular facts and circumstances of the underlying claim. While the methodology is generally consistent within each sub-segment, there are minor differences between and within the sub-segments. The methods used to summarize claim counts have not changed significantly over the time periods reported in the tables below.

Property and transportation
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	503	$	487	$	505	$	498	$	494	$	494	$	491	$	491	$	491	$	490	$	2	138,248
2010			680		640		646		654		656		657		661		659		657		3		138,235
2011					816		803		819		833		844		856		853		850		6		139,345
2012							875		866		880		892		905		900		897		13		145,636
2013									894		881		884		890		890		890		18		141,293
2014											856		842		831		834		831		25		136,259
2015													831		794		789		789		36		134,484
2016															762		730		733		74		122,623
2017																	904		868		128		140,963
2018																			952		277		119,817
																	Total		$	7,957

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (a)
2009	$	219	$	333	$	397	$	440	$	462	$	476	$	480	$	481	$	484	$	485	99.0	%
2010			316		487		536		597		627		638		643		648		650		98.9	%
2011					367		670		732		777		810		828		836		839		98.7	%
2012							574		715		780		826		852		866		892		99.4	%
2013									440		710		769		814		843		859		96.5	%
2014											332		638		702		756		784		94.3	%
2015													361		587		675		717		90.9	%
2016															296		528		590		80.5	%
2017																	383		648		74.7	%
2018																			399		41.9	%
																	Total		$	6,863
									Unpaid losses and LAE — years 2009 through 2018										1,094
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																23
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	1,117

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	46.2	%	28.7	%	8.6	%	6.5	%	3.7	%	2.0	%	1.4	%	0.4	%	0.5	%	0.2	%
Cumulative	46.2	%	74.9	%	83.5	%	90.0	%	93.7	%	95.7	%	97.1	%	97.5	%	98.0	%	98.2	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Specialty casualty
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	888	$	887	$	864	$	844	$	833	$	828	$	829	$	824	$	820	$	811	$	34	56,985
2010			870		886		887		865		879		868		867		864		853		47		56,411
2011					847		845		833		842		827		822		819		811		52		53,385
2012							890		883		876		876		872		867		838		64		51,885
2013									956		938		933		928		933		913		99		51,620
2014											1,023		994		994		992		966		139		54,494
2015													1,068		1,033		1,031		1,030		185		55,468
2016															1,115		1,108		1,097		313		53,038
2017																	1,196		1,200		539		52,658
2018																			1,257		705		48,996
																	Total		$	9,776

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (a)
2009	$	170	$	381	$	510	$	591	$	653	$	691	$	715	$	731	$	740	$	748	92.2	%
2010			191		411		559		644		699		735		756		770		782		91.7	%
2011					172		380		517		606		655		687		707		725		89.4	%
2012							171		378		508		611		674		713		735		87.7	%
2013									180		388		545		656		717		754		82.6	%
2014											187		406		565		668		741		76.7	%
2015													176		406		569		692		67.2	%
2016															184		411		571		52.1	%
2017																	196		414		34.5	%
2018																			207		16.5	%
																	Total		$	6,369
									Unpaid losses and LAE — years 2009 through 2018										3,407
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																477
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	3,884

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	19.1	%	23.2	%	16.2	%	11.1	%	7.0	%	4.3	%	2.6	%	1.9	%	1.3	%	1.0	%
Cumulative	19.1	%	42.3	%	58.5	%	69.6	%	76.6	%	80.9	%	83.5	%	85.4	%	86.7	%	87.7	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Specialty financial
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	192	$	192	$	186	$	184	$	188	$	186	$	187	$	186	$	185	$	186	$	1	27,431
2010			138		145		132		132		135		133		130		127		126		1		21,922
2011					138		157		155		153		147		144		143		139		6		16,368
2012							163		163		151		139		137		135		132		6		21,064
2013									140		145		137		131		127		126		9		28,449
2014											146		157		156		153		147		9		29,411
2015													156		160		158		153		16		37,483
2016															179		184		187		24		44,820
2017																	212		215		34		46,921
2018																			212		79		36,606
																	Total		$	1,623

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018			% (a)
2009	$	112	$	145	$	157	$	166	$	171	$	181	$	185	$	186	$	186	$	185		99.5	%
2010			61		93		104		122		132		130		128		126		126			100.0	%
2011					58		111		115		123		130		131		131		132			95.0	%
2012							71		104		109		117		121		126		128			97.0	%
2013									70		100		107		113		117		117			92.9	%
2014											62		109		125		128		137			93.2	%
2015													72		110		129		133			86.9	%
2016															88		141		158			84.5	%
2017																	120		169			78.6	%
2018																			112			52.8	%
																	Total		$	1,397
									Unpaid losses and LAE — years 2009 through 2018										226
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																(1		)
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	225

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	50.5	%	26.4	%	7.5	%	5.8	%	4.7	%	1.7	%	0.5	%	(0.1	%)	—	%	(0.5	%)
Cumulative	50.5	%	76.9	%	84.4	%	90.2	%	94.9	%	96.6	%	97.1	%	97.0	%	97.0	%	96.5	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Other specialty
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims (a)
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	41	$	41	$	41	$	40	$	37	$	37	$	36	$	38	$	33	$	32	$	6	—
2010			36		39		40		39		40		40		40		40		40		3		—
2011					39		43		42		43		43		44		44		43		3		—
2012							42		40		39		40		41		39		39		6		—
2013									46		47		46		47		50		53		2		—
2014											58		57		59		59		60		13		—
2015													59		60		63		66		8		—
2016															61		61		65		21		—
2017																	63		65		36		—
2018																			86		62		—
																	Total		$	549

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (b)
2009	$	8	$	12	$	15	$	19	$	22	$	22	$	24	$	26	$	25	$	27	84.4	%
2010			8		14		21		24		27		33		35		36		37		92.5	%
2011					12		20		25		28		34		36		37		38		88.4	%
2012							8		17		21		25		28		30		30		76.9	%
2013									7		16		22		34		37		44		83.0	%
2014											13		21		30		36		43		71.7	%
2015													10		26		31		50		75.8	%
2016															9		19		31		47.7	%
2017																	10		19		29.2	%
2018																			12		14.0	%
																	Total		$	331
									Unpaid losses and LAE — years 2009 through 2018										218
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																62
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	280

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	18.7	%	17.0	%	12.6	%	14.1	%	9.3	%	7.6	%	3.4	%	3.7	%	(0.3	%)	6.3	%
Cumulative	18.7	%	35.7	%	48.3	%	62.4	%	71.7	%	79.3	%	82.7	%	86.4	%	86.1	%	92.4	%

(a) The amounts shown in Other specialty represent business assumed by AFG’s internal reinsurance program from the operations that make up AFG’s other Specialty property and casualty insurance sub-segments. Accordingly, the liability for incurred claims and allocated LAE represents additional reserves held on claims counted in the tables provided for the other sub-segments (above).

(b) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Total Specialty Group
(Dollars in Millions)
	Incurred Claims and Allocated LAE, Net of Reinsurance																				As of December 31, 2018
	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)																				Total IBNR Plus Expected Development on Reported Claims		Cumulative Number of Reported Claims
Accident Year	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018
2009	$	1,624	$	1,607	$	1,596	$	1,566	$	1,552	$	1,545	$	1,543	$	1,539	$	1,529	$	1,519	$	43	222,664
2010			1,724		1,710		1,705		1,690		1,710		1,698		1,698		1,690		1,676		54		216,568
2011					1,840		1,848		1,849		1,871		1,861		1,866		1,859		1,843		67		209,098
2012							1,970		1,952		1,946		1,947		1,955		1,941		1,906		89		218,585
2013									2,036		2,011		2,000		1,996		2,000		1,982		128		221,362
2014											2,083		2,050		2,040		2,038		2,004		186		220,164
2015													2,114		2,047		2,041		2,038		245		227,435
2016															2,117		2,083		2,082		432		220,481
2017																	2,375		2,348		737		240,542
2018																			2,507		1,123		205,419
																	Total		$	19,905

	Cumulative Paid Claims and Allocated LAE, Net of Reinsurance
Accident Year	For the Years Ended (2009–2017 is Supplementary Information and Unaudited)
	2009		2010		2011		2012		2013		2014		2015		2016		2017		2018		% (a)
2009	$	509	$	871	$	1,079	$	1,216	$	1,308	$	1,370	$	1,404	$	1,424	$	1,435	$	1,445	95.1	%
2010			576		1,005		1,220		1,387		1,485		1,536		1,562		1,580		1,595		95.2	%
2011					609		1,181		1,389		1,534		1,629		1,682		1,711		1,734		94.1	%
2012							824		1,214		1,418		1,579		1,675		1,735		1,785		93.7	%
2013									697		1,214		1,443		1,617		1,714		1,774		89.5	%
2014											594		1,174		1,422		1,588		1,705		85.1	%
2015													619		1,129		1,404		1,592		78.1	%
2016															577		1,099		1,350		64.8	%
2017																	709		1,250		53.2	%
2018																			730		29.1	%
																	Total		$	14,960
									Unpaid losses and LAE — years 2009 through 2018										4,945
			Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)																561
			Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)																$	5,506

	Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Supplementary Information and Unaudited)
	Year 1		Year 2		Year 3		Year 4		Year 5		Year 6		Year 7		Year 8		Year 9		Year 10
Annual	32.6	%	25.5	%	12.2	%	8.8	%	5.5	%	3.2	%	2.0	%	1.2	%	0.8	%	0.7	%
Cumulative	32.6	%	58.1	%	70.3	%	79.1	%	84.6	%	87.8	%	89.8	%	91.0	%	91.8	%	92.5	%

(a) Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

Statutory information

Net earnings and capital and surplus on a statutory basis for the insurance subsidiaries were as follows (in millions):

	Net Earnings						Capital and Surplus
	2018		2017		2016		2018		2017
Property and casualty companies	$	546	$	484	$	461	$	2,867	$	2,729
Life insurance companies	802		286		167		2,701		2,132

Reinsurance information

The following table shows (in millions) (i) amounts deducted from property and casualty written and earned premiums in connection with reinsurance ceded, (ii) written and earned premiums included in income for reinsurance assumed and (iii) reinsurance recoveries, which represent ceded losses and loss adjustment expenses.

	2018			2017			2016
Direct premiums written	$	6,626		$	6,310		$	5,858
Reinsurance assumed	214			192			123
Reinsurance ceded	(1,817		)	(1,751		)	(1,595		)
Net written premiums	$	5,023		$	4,751		$	4,386
Direct premiums earned	$	6,472		$	6,112		$	5,745
Reinsurance assumed	204			157			118
Reinsurance ceded	(1,811		)	(1,690		)	(1,535		)
Net earned premiums	$	4,865		$	4,579		$	4,328
Reinsurance recoveries	$	1,249		$	1,379		$	810

Schedule of reserve liabilities for annuity benefits accumulated

For certain products, the liability for “annuity benefits accumulated” includes reserves for excess benefits expected to be paid on future deaths and annuitizations guaranteed withdrawal benefits and accrued persistency and premium bonuses. The liabilities included in AFG’s Balance Sheet for these benefits, excluding the impact of unrealized gains on securities, were as follows at December 31 (in millions):

	2018		2017
Expected death and annuitization	$	229	$	228
Guaranteed withdrawal benefits	472		358
Accrued persistency and premium bonuses	1		3

XML

Accounting Policies - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2018
Significant Accounting Policies [Line Items]
Cumulative effect of accounting change	$ 4		$ 4
Stranded amount reclassified from AOCI to retained earnings			$ 0
Weighted average common shares adjustment related to stock-based compensation		1,600,000	2,000,000	1,600,000
Anti-dilutive potential common shares related to stock-based compensation plans		0	0	400,000
Maturities of short term investments		3 months
Accounting Standards Update 2016-02 | Maximum
Significant Accounting Policies [Line Items]
Cumulative effect of accounting change		0.50%
Equity securities
Significant Accounting Policies [Line Items]
Available-for-sale securities, Equity securities	1,600		$ 1,600
Equity securities, trading at fair value	62		$ 62
Equity securities | Accounting Standards Update 2016-01
Significant Accounting Policies [Line Items]
Cumulative effect of accounting change					$ (221)
Tax Cuts and Jobs Act of 2017 | Accounting Standards Update 2018-02
Significant Accounting Policies [Line Items]
Stranded amount reclassified from AOCI to retained earnings	$ 145
Limited partnerships and similar investments | Accounting Standards Update 2016-01
Significant Accounting Policies [Line Items]
Cumulative effect of accounting change					$ (4)
Equity securities still owned | Equity securities | Accounting Standards Update 2016-01
Significant Accounting Policies [Line Items]
Net holding gains (losses) on equity securities		$ (257)

XML

Acquisitions and Sale of Businesses - Narrative on acquisitions of subsidiaries (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	3 Months Ended			12 Months Ended
	Nov. 10, 2016	Nov. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisitions [Line Items]
Payments to acquire subsidiaries						$ 36	$ 0	$ 0
Goodwill acquired during period			$ 8			8
Payments to acquire additional interest in subsidiaries						0	0	315
Income tax expense (benefit)						122	247	119
National Interstate
Business Acquisitions [Line Items]
Percentage ownership of National Interstate by noncontrolling owners prior to acquisition	49.00%
Payments to acquire additional interest in subsidiaries	$ 315
Acquisition price per share (USD per share)	$ 32.00
Cash dividend paid (USD per share)	$ 0.50
Payment of special cash dividends	$ 5
Payments for acquisition related costs					$ 10
ABA Insurance Services
Business Acquisitions [Line Items]
Payments to acquire subsidiaries		$ 30
Contingent consideration			$ 3			$ 3
Contingent consideration term						4 years
Finite-lived intangible assets acquired		25
Finite-lived intangible asset useful life						9 years
Goodwill acquired during period		$ 8
AFG
Business Acquisitions [Line Items]
Income tax expense (benefit)				$ (56)		$ 122	$ 247	$ 119
AFG | National Interstate
Business Acquisitions [Line Items]
Reduction to capital surplus	$ (137)
Income tax expense (benefit)					$ (66)

XML

Acquisitions and Sale of Businesses - Narrative on sale of businesses (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Sale of Businesses
Sale of redeemable noncontrolling interests				$ (3)
Income tax expense (benefit)			$ 122	247	$ 119
Neon Capital Limited
Sale of Businesses
Sale of redeemable noncontrolling interests	$ (3)
Income tax expense (benefit)	(56)	$ (111)			(48)
AFG
Sale of Businesses
Income tax expense (benefit)	$ (56)		$ 122	$ 247	$ 119

XML

Acquisitions and Sale of Businesses - Allocation of the purchase price of subsidiary (Details) - USD ($) $ in Millions		1 Months Ended	12 Months Ended
		Nov. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Business Acquisitions [Line Items]
Total purchase price			$ 36	$ 0	$ 0
Goodwill			$ 207	$ 199	$ 199	$ 199
ABA Insurance Services
Business Acquisitions [Line Items]
Total purchase price		$ 30
Tangible assets acquired		28
Liabilities acquired		26
Net tangible assets acquire, at fair value		2
Excess purchase price over net tangible assets acquired		28
Intangible assets acquired	[1]	25
Deferred tax on intangible assets acquired	[1]	(5)
Goodwill		$ 8

[1] Included in Other assets in AFG’s Balance Sheet.

XML

Segments of Operations - Narrative (Details) $ in Millions	3 Months Ended				12 Months Ended
	Sep. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2018 USD ($) segment	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Segment Reporting Information [Line Items]
Number of segments | segment					3
Revenue derived from sales of property and casualty insurance outside of the United States					7.00%	5.00%	4.00%
Property and casualty insurance | Real estate investment
Segment Reporting Information [Line Items]
Pretax income from the sale of real estate properties included in other income				$ 13			$ 32
Property and casualty insurance | Other lines
Segment Reporting Information [Line Items]
Special charges to increase asbestos and environmental reserves	$ 18		$ 89		$ 18	$ 89	36
Favorable reserve development related to certain lines of business within subsidiaries in connection with a reinsurance to close agreement						18
Special charges related to the exit of certain lines of business within subsidiaries							65
Other
Segment Reporting Information [Line Items]
Special charges to increase asbestos and environmental reserves					$ 9	24	$ 5
Make-whole premium, settlement of interest rate swap and write off of deferred debt issuance cost included in the loss on the retirement of debt		$ 40				$ 51

XML

Segments of Operations - Assets by segment and sub-segment (Details) - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total assets		$ 63,456	$ 60,658	$ 55,072
Property and casualty insurance
Segment Reporting Information [Line Items]
Total assets	[1]	17,681	17,171	15,574
Annuity
Segment Reporting Information [Line Items]
Total assets		39,952	37,179	33,409
Other
Segment Reporting Information [Line Items]
Total assets		$ 5,823	$ 6,308	$ 6,089

[1] Not allocable to sub-segments.

XML

Segments of Operations - Revenues by segment and sub-segment (Details) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
		Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total premiums earned										$ 4,865	$ 4,579	$ 4,328
Net investment income										2,094	1,831	1,696
Other income										199	206	224
Revenues before realized gains (losses)										7,416	6,860	6,477
Realized gains (losses) on securities										(266)	5	19
Realized gains on subsidiaries										0	0	2
Total revenues		$ 1,690	$ 2,008	$ 1,833	$ 1,619	$ 1,808	$ 1,835	$ 1,646	$ 1,576	7,150	6,865	6,498
Property and casualty insurance
Segment Reporting Information [Line Items]
Total premiums earned										4,865	4,579	4,328
Net investment income										438	362	350
Other income	[1]									10	28	51
Revenues before realized gains (losses)										5,313	4,969	4,729
Annuity
Segment Reporting Information [Line Items]
Net investment income										1,638	1,458	1,356
Other income										107	103	103
Revenues before realized gains (losses)										1,745	1,561	1,459
Other
Segment Reporting Information [Line Items]
Revenues before realized gains (losses)										358	330	289
Property and transportation | Property and casualty insurance
Segment Reporting Information [Line Items]
Total premiums earned										1,729	1,711	1,662
Specialty casualty | Property and casualty insurance
Segment Reporting Information [Line Items]
Total premiums earned										2,403	2,186	2,006
Specialty financial | Property and casualty insurance
Segment Reporting Information [Line Items]
Total premiums earned										598	576	557
Other specialty | Property and casualty insurance
Segment Reporting Information [Line Items]
Total premiums earned										$ 135	$ 106	$ 103

[1] Includes income of $32 million (before noncontrolling interest) from the sale of an apartment property in 2016.

XML

Segments of Operations - Earnings before income taxes by segment and sub-segment (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Earnings before realized gains (losses) and income taxes		$ 905	$ 719	$ 766
Realized gains (losses) on securities		(266)	5	19
Realized gains on subsidiaries		0	0	2
Earnings before income taxes		639	724	787
Property and casualty insurance
Segment Reporting Information [Line Items]
Property and casualty insurance underwriting		302	242	236
Investment and other income, net	[1]	407	349	341
Earnings before realized gains (losses) and income taxes		709	591	577
Annuity
Segment Reporting Information [Line Items]
Earnings before realized gains (losses) and income taxes		361	380	368
Other
Segment Reporting Information [Line Items]
Earnings before realized gains (losses) and income taxes	[2]	(165)	(252)	(179)
Property and transportation | Property and casualty insurance
Segment Reporting Information [Line Items]
Property and casualty insurance underwriting		120	154	166
Specialty casualty | Property and casualty insurance
Segment Reporting Information [Line Items]
Property and casualty insurance underwriting		141	104	78
Specialty financial | Property and casualty insurance
Segment Reporting Information [Line Items]
Property and casualty insurance underwriting		66	61	84
Other specialty | Property and casualty insurance
Segment Reporting Information [Line Items]
Property and casualty insurance underwriting		(5)	(2)	9
Other lines | Property and casualty insurance
Segment Reporting Information [Line Items]
Property and casualty insurance underwriting	[3]	$ (20)	$ (75)	$ (101)

[1] Includes income of $32 million (before noncontrolling interest) from the sale of an apartment property in 2016.

[2] Primarily holding company interest and expenses, including losses on retirement of debt of $51 million in 2017 and special charges to increase A&E reserves related to AFG’s former railroad and manufacturing operations ($9 million in 2018, $24 million in 2017 and $5 million in 2016).

[3] Includes special charges to increase asbestos and environmental (“A&E”) reserves of $18 million, $89 million and $36 million in 2018, 2017 and 2016, respectively. Also includes $18 million in favorable development related to the Neon exited lines recorded in connection with a reinsurance to close transaction in 2017 and a charge of $65 million related to Neon exited lines in 2016.

XML

Fair Value Measurements - Narrative (Details) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($) basispoint security professional	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Fair Value Measurements (Textual) [Abstract]
AFG's internal investment professionals | professional		25
Level 3 assets as a percentage of total assets measured at fair value		7.00%
Percentage of level 3 assets that were priced using non-binding broker quotes		69.00%
Level 3 assets that were priced using non-binding broker quotes		$ 2,410
Percent of spreads between 400 and 700 basis points		80.00%
Fair value of equity securities transferred into level 3		$ 270	$ 289	$ 139
Life contingent annuities		232	206
Fixed-indexed and variable-indexed annuities (embedded derivative)
Fair Value Measurements (Textual) [Abstract]
Fair value of derivatives in annuity benefits accumulated measured using a discounted cash flow approach		$ 2,720
Fixed-indexed and variable-indexed annuities (embedded derivative) | Minimum
Fair Value Measurements (Textual) [Abstract]
Unobservable input surrenders used in Level 3 fair value determination		3.00%
Fixed-indexed and variable-indexed annuities (embedded derivative) | Maximum
Fair Value Measurements (Textual) [Abstract]
Unobservable input surrenders used in Level 3 fair value determination		23.00%
Fixed-indexed annuities (embedded derivative), majority of future years | Minimum
Fair Value Measurements (Textual) [Abstract]
Unobservable input surrenders used in Level 3 fair value determination		7.00%
Fixed-indexed annuities (embedded derivative), majority of future years | Maximum
Fair Value Measurements (Textual) [Abstract]
Unobservable input surrenders used in Level 3 fair value determination		11.00%
Not Designated as Hedging Instrument | Annuity benefits | Fixed-indexed and variable-indexed annuities (embedded derivative)
Fair Value Measurements (Textual) [Abstract]
Total realized/unrealized gains (losses) included in net income for the embedded derivatives related to the unlocking of actuarial assumptions		$ (44)	(25)	(17)
Level 3
Fair Value Measurements (Textual) [Abstract]
Internally developed level 3 assets		1,050
Fixed maturities
Fair Value Measurements (Textual) [Abstract]
Fair value of equity securities transferred into level 3		240	289	124
Equity securities
Fair Value Measurements (Textual) [Abstract]
Fair value of equity securities transferred into level 3	$ 29	30	$ 0	$ 15
Third party pricing model | Fixed maturities | Level 3
Fair Value Measurements (Textual) [Abstract]
Internally developed level 3 assets		$ 590
Securities priced using third-party model | security		100
Basis points credit spread applied by management using third party model | basispoint		585
Third party pricing model | Fixed maturities | Level 3 | Minimum
Fair Value Measurements (Textual) [Abstract]
Basis points credit spread applied by management using third party model | basispoint		131
Third party pricing model | Fixed maturities | Level 3 | Maximum
Fair Value Measurements (Textual) [Abstract]
Basis points credit spread applied by management using third party model | basispoint		2,966
Maximum | Third party pricing model | Fixed maturities | Level 3
Fair Value Measurements (Textual) [Abstract]
Basis points credit spread applied by management using third party model | basispoint		700
Minimum | Third party pricing model | Fixed maturities | Level 3
Fair Value Measurements (Textual) [Abstract]
Basis points credit spread applied by management using third party model | basispoint		400

XML

Fair Value Measurements - Assets and liabilities measured and carried at fair value in the financial statements (Details) - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017
Assets:
Available for sale (AFS) fixed maturities		$ 41,997	$ 38,379
Trading fixed maturities		105	348
Equity securities, at fair value		1,814	1,662
Assets of managed investment entities (MIE)		4,700	4,902
Variable annuity assets (separate accounts)	[1]	557	644
Derivatives including equity index call options and other assets		184	701
Total assets accounted for at fair value		49,373	46,636
Liabilities:
Liabilities of managed investment entities		4,512	4,687
Total liabilities accounted for at fair value		7,281	7,264
Derivatives in annuity benefits accumulated
Liabilities:
Derivatives included in annuity benefits accumulated, long-term debt, and other liabilities		2,720	2,542
Other liabilities — derivatives
Liabilities:
Derivatives included in annuity benefits accumulated, long-term debt, and other liabilities		49	35
Fixed maturities
Assets:
Available for sale (AFS) fixed maturities		41,997	38,379
Trading fixed maturities		105	348
U.S. Government and government agencies
Assets:
Available for sale (AFS) fixed maturities		233	242
States, municipalities and political subdivisions
Assets:
Available for sale (AFS) fixed maturities		6,939	7,123
Foreign government
Assets:
Available for sale (AFS) fixed maturities		142	127
Residential MBS
Assets:
Available for sale (AFS) fixed maturities		2,744	3,227
Commercial MBS
Assets:
Available for sale (AFS) fixed maturities		920	962
Asset-backed securities
Assets:
Available for sale (AFS) fixed maturities		9,811	7,962
Corporate and other
Assets:
Available for sale (AFS) fixed maturities		21,208	18,736
Equity securities
Assets:
Equity securities, at fair value		1,814	1,662
Other assets — derivatives
Assets:
Derivatives including equity index call options and other assets		16	0
Level 1
Assets:
Assets of managed investment entities (MIE)		203	307
Variable annuity assets (separate accounts)	[1]	0	0
Total assets accounted for at fair value		1,791	1,914
Liabilities:
Liabilities of managed investment entities		195	293
Total liabilities accounted for at fair value		195	293
Level 1 | Derivatives in annuity benefits accumulated
Liabilities:
Derivatives included in annuity benefits accumulated, long-term debt, and other liabilities		0	0
Level 1 | Other liabilities — derivatives
Liabilities:
Derivatives included in annuity benefits accumulated, long-term debt, and other liabilities		0	0
Level 1 | Fixed maturities
Assets:
Available for sale (AFS) fixed maturities		169	152
Trading fixed maturities		9	44
Level 1 | U.S. Government and government agencies
Assets:
Available for sale (AFS) fixed maturities		141	122
Level 1 | States, municipalities and political subdivisions
Assets:
Available for sale (AFS) fixed maturities		0	0
Level 1 | Foreign government
Assets:
Available for sale (AFS) fixed maturities		0	0
Level 1 | Residential MBS
Assets:
Available for sale (AFS) fixed maturities		0	0
Level 1 | Commercial MBS
Assets:
Available for sale (AFS) fixed maturities		0	0
Level 1 | Asset-backed securities
Assets:
Available for sale (AFS) fixed maturities		0	0
Level 1 | Corporate and other
Assets:
Available for sale (AFS) fixed maturities		28	30
Level 1 | Equity securities
Assets:
Equity securities, at fair value		1,410	1,411
Level 1 | Other assets — derivatives
Assets:
Derivatives including equity index call options and other assets		0	0
Level 2
Assets:
Assets of managed investment entities (MIE)		4,476	4,572
Variable annuity assets (separate accounts)	[1]	557	644
Total assets accounted for at fair value		44,061	42,432
Liabilities:
Liabilities of managed investment entities		4,297	4,372
Total liabilities accounted for at fair value		4,346	4,407
Level 2 | Derivatives in annuity benefits accumulated
Liabilities:
Derivatives included in annuity benefits accumulated, long-term debt, and other liabilities		0	0
Level 2 | Other liabilities — derivatives
Liabilities:
Derivatives included in annuity benefits accumulated, long-term debt, and other liabilities		49	35
Level 2 | Fixed maturities
Assets:
Available for sale (AFS) fixed maturities		38,664	36,125
Trading fixed maturities		96	304
Level 2 | U.S. Government and government agencies
Assets:
Available for sale (AFS) fixed maturities		83	112
Level 2 | States, municipalities and political subdivisions
Assets:
Available for sale (AFS) fixed maturities		6,880	6,975
Level 2 | Foreign government
Assets:
Available for sale (AFS) fixed maturities		142	127
Level 2 | Residential MBS
Assets:
Available for sale (AFS) fixed maturities		2,547	3,105
Level 2 | Commercial MBS
Assets:
Available for sale (AFS) fixed maturities		864	926
Level 2 | Asset-backed securities
Assets:
Available for sale (AFS) fixed maturities		8,964	7,218
Level 2 | Corporate and other
Assets:
Available for sale (AFS) fixed maturities		19,184	17,662
Level 2 | Equity securities
Assets:
Equity securities, at fair value		68	86
Level 2 | Other assets — derivatives
Assets:
Derivatives including equity index call options and other assets		16	0
Level 3
Assets:
Assets of managed investment entities (MIE)		21	23
Variable annuity assets (separate accounts)	[1]	0	0
Total assets accounted for at fair value		3,521	2,290
Liabilities:
Liabilities of managed investment entities		20	22
Total liabilities accounted for at fair value		2,740	2,564
Level 3 | Derivatives in annuity benefits accumulated
Liabilities:
Derivatives included in annuity benefits accumulated, long-term debt, and other liabilities		2,720	2,542
Level 3 | Other liabilities — derivatives
Liabilities:
Derivatives included in annuity benefits accumulated, long-term debt, and other liabilities		0	0
Level 3 | Fixed maturities
Assets:
Available for sale (AFS) fixed maturities		3,164	2,102
Trading fixed maturities		0	0
Level 3 | U.S. Government and government agencies
Assets:
Available for sale (AFS) fixed maturities		9	8
Level 3 | States, municipalities and political subdivisions
Assets:
Available for sale (AFS) fixed maturities		59	148
Level 3 | Foreign government
Assets:
Available for sale (AFS) fixed maturities		0	0
Level 3 | Residential MBS
Assets:
Available for sale (AFS) fixed maturities		197	122
Level 3 | Commercial MBS
Assets:
Available for sale (AFS) fixed maturities		56	36
Level 3 | Asset-backed securities
Assets:
Available for sale (AFS) fixed maturities		847	744
Level 3 | Corporate and other
Assets:
Available for sale (AFS) fixed maturities		1,996	1,044
Level 3 | Equity securities
Assets:
Equity securities, at fair value		336	165
Level 3 | Other assets — derivatives
Assets:
Derivatives including equity index call options and other assets		0	0
Equity index call options | Equity index call options
Assets:
Derivatives including equity index call options and other assets		184	701
Equity index call options | Level 1 | Equity index call options
Assets:
Derivatives including equity index call options and other assets		0	0
Equity index call options | Level 2 | Equity index call options
Assets:
Derivatives including equity index call options and other assets		184	701
Equity index call options | Level 3 | Equity index call options
Assets:
Derivatives including equity index call options and other assets		$ 0	$ 0

[1] Variable annuity liabilities equal the fair value of variable annuity assets.

XML

Fair Value Measurements - Transfers between Level 1 and Level 2 (Details) $ in Millions	Dec. 31, 2018 USD ($) stock	Dec. 31, 2017 USD ($) stock	Dec. 31, 2016 USD ($) stock
Perpetual preferred stocks
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of stocks transferred from Level 2 to Level 1 | stock	2	4	6
Fair value of assets transferred from Level 2 to Level 1 | $	$ 5	$ 23	$ 35
Number of stocks transferred from Level 1 to Level 2 | stock	2	2	7
Fair value of assets transferred from Level 1 to Level 2 | $	$ 6	$ 11	$ 28
Common stocks
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of stocks transferred from Level 2 to Level 1 | stock	0	0	3
Fair value of assets transferred from Level 2 to Level 1 | $	$ 0	$ 0	$ 0
Number of stocks transferred from Level 1 to Level 2 | stock	0	1	2
Fair value of assets transferred from Level 1 to Level 2 | $	$ 0	$ 0	$ 0

XML

Fair Value Measurements - Unobservable inputs used in determining fair value of embedded derivatives (Details) - Embedded derivatives	12 Months Ended
	Dec. 31, 2018
Unobservable inputs used by management in determining fair value of embedded derivatives
Risk margin for uncertainty in cash flows	0.73%
Minimum
Unobservable inputs used by management in determining fair value of embedded derivatives
Fair Value Input Adjustment for Insurance Subsidiary’s Credit Risk	0.60%
Surrenders	3.00%
Partial surrenders	2.00%
Annuitizations	0.10%
Deaths	1.50%
Budgeted option costs	2.60%
Maximum
Unobservable inputs used by management in determining fair value of embedded derivatives
Fair Value Input Adjustment for Insurance Subsidiary’s Credit Risk	2.10%
Surrenders	23.00%
Partial surrenders	9.00%
Annuitizations	1.00%
Deaths	9.50%
Budgeted option costs	3.60%

XML

Fair Value Measurements - Changes in balances of Level 3 financial assets carried at fair value (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Financial assets, Beginning Balance	$ 2,290	$ 2,290	$ 1,762	$ 1,636
Total realized/unrealized gains (losses) included in Net earnings		(21)	(39)	(35)
Total realized/unrealized gains (losses) included in other comprehensive income (loss)		(39)	17	21
Purchases and issuances		1,828	1,079	347
Sales and settlements		(482)	(437)	(217)
Transfer into Level 3		270	289	139
Transfer out of Level 3		(325)	(381)	(129)
Financial assets, Ending Balance		3,521	2,290	1,762
Fixed maturities
Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Financial assets, Beginning Balance	2,102	2,102	1,559	1,470
Total realized/unrealized gains (losses) included in Net earnings		(22)	(7)	(14)
Total realized/unrealized gains (losses) included in other comprehensive income (loss)		(39)	7	(14)
Purchases and issuances		1,667	1,032	291
Sales and settlements		(476)	(421)	(189)
Transfer into Level 3		240	289	124
Transfer out of Level 3		(308)	(357)	(109)
Financial assets, Ending Balance		3,164	2,102	1,559
U.S. government agency
Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Financial assets, Beginning Balance	8	8	8	15
Total realized/unrealized gains (losses) included in Net earnings		0	0	(8)
Total realized/unrealized gains (losses) included in other comprehensive income (loss)		0	0	1
Purchases and issuances		0	0	0
Sales and settlements		0	0	0
Transfer into Level 3		1	0	0
Transfer out of Level 3		0	0	0
Financial assets, Ending Balance		9	8	8
State and municipal
Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Financial assets, Beginning Balance	148	148	140	89
Total realized/unrealized gains (losses) included in Net earnings		0	0	0
Total realized/unrealized gains (losses) included in other comprehensive income (loss)		(2)	2	(4)
Purchases and issuances		0	0	57
Sales and settlements		(3)	(2)	(2)
Transfer into Level 3		0	10	0
Transfer out of Level 3		(84)	(2)	0
Financial assets, Ending Balance		59	148	140
Residential MBS
Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Financial assets, Beginning Balance	122	122	190	224
Total realized/unrealized gains (losses) included in Net earnings		(9)	(4)	(4)
Total realized/unrealized gains (losses) included in other comprehensive income (loss)		(4)	2	(2)
Purchases and issuances		0	1	8
Sales and settlements		(21)	(40)	(28)
Transfer into Level 3		130	44	34
Transfer out of Level 3		(21)	(71)	(42)
Financial assets, Ending Balance		197	122	190
Commercial MBS
Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Financial assets, Beginning Balance	36	36	25	39
Total realized/unrealized gains (losses) included in Net earnings		0	2	(1)
Total realized/unrealized gains (losses) included in other comprehensive income (loss)		0	0	0
Purchases and issuances		20	15	0
Sales and settlements		0	(10)	(7)
Transfer into Level 3		0	4	0
Transfer out of Level 3		0	0	(6)
Financial assets, Ending Balance		56	36	25
Asset-backed securities
Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Financial assets, Beginning Balance	744	744	484	470
Total realized/unrealized gains (losses) included in Net earnings		(3)	0	(1)
Total realized/unrealized gains (losses) included in other comprehensive income (loss)		(15)	1	1
Purchases and issuances		426	410	50
Sales and settlements		(248)	(132)	(52)
Transfer into Level 3		82	202	60
Transfer out of Level 3		(139)	(221)	(44)
Financial assets, Ending Balance		847	744	484
Corporate and other
Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Financial assets, Beginning Balance	1,044	1,044	712	633
Total realized/unrealized gains (losses) included in Net earnings		(10)	(5)	0
Total realized/unrealized gains (losses) included in other comprehensive income (loss)		(18)	2	(10)
Purchases and issuances		1,221	606	176
Sales and settlements		(204)	(237)	(100)
Transfer into Level 3		27	29	30
Transfer out of Level 3		(64)	(63)	(17)
Financial assets, Ending Balance		1,996	1,044	712
Equity securities
Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Financial assets, Beginning Balance	165	165	174	140
Total realized/unrealized gains (losses) included in Net earnings		9	(21)	(12)
Total realized/unrealized gains (losses) included in other comprehensive income (loss)		0	10	35
Purchases and issuances		155	38	44
Sales and settlements		(6)	(16)	(28)
Transfer into Level 3	29	30	0	15
Transfer out of Level 3		(17)	(20)	(20)
Financial assets, Ending Balance		336	165	174
Assets of MIE
Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Financial assets, Beginning Balance	$ 23	23	29	26
Total realized/unrealized gains (losses) included in Net earnings		(8)	(11)	(9)
Total realized/unrealized gains (losses) included in other comprehensive income (loss)		0	0	0
Purchases and issuances		6	9	12
Sales and settlements		0	0	0
Transfer into Level 3		0	0	0
Transfer out of Level 3		0	(4)	0
Financial assets, Ending Balance		$ 21	$ 23	$ 29

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Fair Value Measurements - Changes in balances of Level 3 financial liabilities carried at fair value (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018		Dec. 31, 2017		Dec. 31, 2016
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Financial liabilities, Beginning Balance	$ (2,542)	[1]	$ (1,759)	[2]	$ (1,369)
Total realized/unrealized gains (losses) included in Net earnings	204		(589)		(211)
Total realized/unrealized gains (losses) included in other comprehensive income (loss)	0		0		0
Purchases and issuances	(545)		(300)		(277)
Sales and settlements	163		106		98
Transfer into Level 3	0		0		0
Transfer out of Level 3	0		0		0
Financial liabilities, Ending Balance	(2,720)	[3]	(2,542)	[1]	(1,759)	[2]
Embedded derivatives
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Financial liabilities, Beginning Balance	(2,542)		(1,759)		(1,369)
Total realized/unrealized gains (losses) included in Net earnings	204	[4]	(589)	[5]	(211)	[6]
Total realized/unrealized gains (losses) included in other comprehensive income (loss)	0		0		0
Purchases and issuances	(545)		(300)		(277)
Sales and settlements	163		106		98
Transfer into Level 3	0		0		0
Transfer out of Level 3	0		0		0
Financial liabilities, Ending Balance	$ (2,720)		$ (2,542)		$ (1,759)

[1] As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

[2] As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

[3] As previously discussed, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.

[4] Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $44 million in 2018.

[5] Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $25 million in 2017.

[6] Total realized/unrealized gains (losses) included in net earnings for the embedded derivatives reflects losses related to the unlocking of actuarial assumptions of $17 million in 2016.

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Fair Value Measurements - The carrying value and fair value of financial instruments (Details) - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017
Financial assets:
Mortgage loans		$ 1,068	$ 1,125
Policy loans		174	184
Financial liabilities:
Long-term debt		1,302	1,301
Level 1
Financial assets:
Cash and cash equivalents		1,515	2,338
Mortgage loans		0	0
Policy loans		0	0
Total financial assets not accounted for at fair value		1,515	2,338
Financial liabilities:
Annuity benefits accumulated	[1]	0	0
Long-term debt		0	0
Total financial liabilities not accounted for at fair value		0	0
Level 2
Financial assets:
Cash and cash equivalents		0	0
Mortgage loans		0	0
Policy loans		0	0
Total financial assets not accounted for at fair value		0	0
Financial liabilities:
Annuity benefits accumulated	[1]	0	0
Long-term debt		1,228	1,351
Total financial liabilities not accounted for at fair value		1,228	1,351
Level 3
Financial assets:
Cash and cash equivalents		0	0
Mortgage loans		1,056	1,119
Policy loans		174	184
Total financial assets not accounted for at fair value		1,230	1,303
Financial liabilities:
Annuity benefits accumulated	[1]	34,765	32,461
Long-term debt		3	3
Total financial liabilities not accounted for at fair value		34,768	32,464
Carrying Value
Financial assets:
Cash and cash equivalents		1,515	2,338
Mortgage loans		1,068	1,125
Policy loans		174	184
Total financial assets not accounted for at fair value		2,757	3,647
Financial liabilities:
Annuity benefits accumulated	[1]	36,384	33,110
Long-term debt		1,302	1,301
Total financial liabilities not accounted for at fair value		37,686	34,411
Fair Value
Financial assets:
Cash and cash equivalents		1,515	2,338
Mortgage loans		1,056	1,119
Policy loans		174	184
Total financial assets not accounted for at fair value		2,745	3,641
Financial liabilities:
Annuity benefits accumulated	[1]	34,765	32,461
Long-term debt		1,231	1,354
Total financial liabilities not accounted for at fair value		$ 35,996	$ 33,815

[1] Excludes $232 million and $206 million of life contingent annuities in the payout phase at December 31, 2018 and 2017, respectively.

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Investments - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) security	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Investment [Line Items]
Percentage (based on amount of unrealized loss) of available for sale fixed maturities that are in an unrealized loss position and rated investment grade	92.00%
Percentage (based on fair value) of available for sale fixed maturities that are in an unrealized loss position and rated investment grade	96.00%
Other than temporary impairment charges	$ 19	$ 73	$ 116
Average life of ABS	4 years 6 months
Average life of MBS	4 years 6 months
Residential MBS
Investment [Line Items]
Non-credit related portion of other-than-temporary impairment charges taken for securities still owned	$ 140	158
Fixed maturities, Gross Unrealized, Losses	(9)	(6)
Other than temporary impairment charges	6	1	3
Securities with non-credit other-than-temporary impairment charges
Investment [Line Items]
Gross Unrealized, Gains	119	137
Gross Unrealized, Losses	(4)	(4)
Fixed maturities
Investment [Line Items]
Fixed maturities, Gross Unrealized, Losses	$ (603)	(82)
Number of available for sale securities in an unrealized loss position | security	2,324
Other than temporary impairment charges	$ 26	20	38
Available-for-sale Securities, Gross Realized Gains	22	43	55
Available-for-sale Securities, Gross Realized Losses	(14)	(20)	(10)
Fixed maturities excluding residential MBS
Investment [Line Items]
Other than temporary impairment charges	20	19	35
Other investments
Investment [Line Items]
Other than temporary impairment charges		4
Equity securities
Investment [Line Items]
Other than temporary impairment charges	0	64	93
Available-for-sale Securities, Gross Realized Gains		87	110
Available-for-sale Securities, Gross Realized Losses		(17)	(4)
Equity securities | Available-for-sale securities
Investment [Line Items]
Other than temporary impairment charges		$ 64	$ 93
Aircraft financing | Fixed maturities excluding residential MBS
Investment [Line Items]
Other than temporary impairment charges	$ 14

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Investments - Available for sale fixed maturities (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]
Fixed maturities, Available for sale, Amortized Cost	$ 41,837	$ 37,038
Available for sale (AFS) fixed maturities	41,997	38,379
Total fixed maturities
Debt Securities, Available-for-sale [Line Items]
Fixed maturities, Available for sale, Amortized Cost	41,837	37,038
Fixed maturities, Available for sale, Gross Unrealized, Gains	763	1,423
Fixed maturities, Available for sale, Gross Unrealized, Losses	(603)	(82)
Fixed maturities, Available for sale, Net Unrealized, Gains (Losses)	160	1,341
Available for sale (AFS) fixed maturities	41,997	38,379
U.S. Government and government agencies
Debt Securities, Available-for-sale [Line Items]
Fixed maturities, Available for sale, Amortized Cost	235	244
Fixed maturities, Available for sale, Gross Unrealized, Gains	1	1
Fixed maturities, Available for sale, Gross Unrealized, Losses	(3)	(3)
Fixed maturities, Available for sale, Net Unrealized, Gains (Losses)	(2)	(2)
Available for sale (AFS) fixed maturities	233	242
States, municipalities and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Fixed maturities, Available for sale, Amortized Cost	6,825	6,887
Fixed maturities, Available for sale, Gross Unrealized, Gains	169	254
Fixed maturities, Available for sale, Gross Unrealized, Losses	(55)	(18)
Fixed maturities, Available for sale, Net Unrealized, Gains (Losses)	114	236
Available for sale (AFS) fixed maturities	6,939	7,123
Foreign government
Debt Securities, Available-for-sale [Line Items]
Fixed maturities, Available for sale, Amortized Cost	140	124
Fixed maturities, Available for sale, Gross Unrealized, Gains	2	3
Fixed maturities, Available for sale, Gross Unrealized, Losses	0	0
Fixed maturities, Available for sale, Net Unrealized, Gains (Losses)	2	3
Available for sale (AFS) fixed maturities	142	127
Residential MBS
Debt Securities, Available-for-sale [Line Items]
Fixed maturities, Available for sale, Amortized Cost	2,476	2,884
Fixed maturities, Available for sale, Gross Unrealized, Gains	277	349
Fixed maturities, Available for sale, Gross Unrealized, Losses	(9)	(6)
Fixed maturities, Available for sale, Net Unrealized, Gains (Losses)	268	343
Available for sale (AFS) fixed maturities	2,744	3,227
Commercial MBS
Debt Securities, Available-for-sale [Line Items]
Fixed maturities, Available for sale, Amortized Cost	905	927
Fixed maturities, Available for sale, Gross Unrealized, Gains	17	36
Fixed maturities, Available for sale, Gross Unrealized, Losses	(2)	(1)
Fixed maturities, Available for sale, Net Unrealized, Gains (Losses)	15	35
Available for sale (AFS) fixed maturities	920	962
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Fixed maturities, Available for sale, Amortized Cost	9,781	7,836
Fixed maturities, Available for sale, Gross Unrealized, Gains	130	142
Fixed maturities, Available for sale, Gross Unrealized, Losses	(100)	(16)
Fixed maturities, Available for sale, Net Unrealized, Gains (Losses)	30	126
Available for sale (AFS) fixed maturities	9,811	7,962
Corporate and other
Debt Securities, Available-for-sale [Line Items]
Fixed maturities, Available for sale, Amortized Cost	21,475	18,136
Fixed maturities, Available for sale, Gross Unrealized, Gains	167	638
Fixed maturities, Available for sale, Gross Unrealized, Losses	(434)	(38)
Fixed maturities, Available for sale, Net Unrealized, Gains (Losses)	(267)	600
Available for sale (AFS) fixed maturities	$ 21,208	$ 18,736

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Investments - Equity securities reported at fair value (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Debt and Equity Securities, FV-NI [Line Items]
Equity securities	$ 1,814	$ 1,662
Common stocks
Debt and Equity Securities, FV-NI [Line Items]
Equity securities, at cost	1,241
Equity securities	1,148
Equity securities, fair value in excess of cost	(93)
Perpetual preferred stocks
Debt and Equity Securities, FV-NI [Line Items]
Equity securities, at cost	705
Equity securities	666
Equity securities, fair value in excess of cost	(39)
Equity securities
Debt and Equity Securities, FV-NI [Line Items]
Equity securities, at cost	1,946
Equity securities	1,814
Equity securities, fair value in excess of cost	$ (132)

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Investments - Gross unrealized losses on securities by investment category and length of time that have been in a continuous unrealized loss position (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Fixed maturities
Available-for-sale securities in a continuous unrealized loss position
Unrealized Loss - Less than twelve months	$ (411)	$ (37)
Fair Value - Less than twelve months	$ 17,766	$ 4,295
Fair Value as % of Cost - Less than twelve months	98.00%	99.00%
Unrealized Loss - Twelve months or more	$ (192)	$ (45)
Fair Value - Twelve months or more	$ 3,902	$ 1,574
Fair Value as % of Cost - Twelve months or more	95.00%	97.00%
U.S. Government and government agencies
Available-for-sale securities in a continuous unrealized loss position
Unrealized Loss - Less than twelve months	$ 0	$ 0
Fair Value - Less than twelve months	$ 41	$ 55
Fair Value as % of Cost - Less than twelve months	100.00%	100.00%
Unrealized Loss - Twelve months or more	$ (3)	$ (3)
Fair Value - Twelve months or more	$ 120	$ 123
Fair Value as % of Cost - Twelve months or more	98.00%	98.00%
States, municipalities and political subdivisions
Available-for-sale securities in a continuous unrealized loss position
Unrealized Loss - Less than twelve months	$ (23)	$ (8)
Fair Value - Less than twelve months	$ 1,497	$ 825
Fair Value as % of Cost - Less than twelve months	98.00%	99.00%
Unrealized Loss - Twelve months or more	$ (32)	$ (10)
Fair Value - Twelve months or more	$ 902	$ 431
Fair Value as % of Cost - Twelve months or more	97.00%	98.00%
Foreign government
Available-for-sale securities in a continuous unrealized loss position
Unrealized Loss - Less than twelve months	$ 0	$ 0
Fair Value - Less than twelve months	$ 18	$ 4
Fair Value as % of Cost - Less than twelve months	100.00%	100.00%
Unrealized Loss - Twelve months or more	$ 0	$ 0
Fair Value - Twelve months or more	$ 4	$ 0
Fair Value as % of Cost - Twelve months or more	100.00%	0.00%
Residential MBS
Available-for-sale securities in a continuous unrealized loss position
Unrealized Loss - Less than twelve months	$ (4)	$ (1)
Fair Value - Less than twelve months	$ 279	$ 118
Fair Value as % of Cost - Less than twelve months	99.00%	99.00%
Unrealized Loss - Twelve months or more	$ (5)	$ (5)
Fair Value - Twelve months or more	$ 139	$ 118
Fair Value as % of Cost - Twelve months or more	97.00%	96.00%
Commercial MBS
Available-for-sale securities in a continuous unrealized loss position
Unrealized Loss - Less than twelve months	$ (1)	$ (1)
Fair Value - Less than twelve months	$ 147	$ 67
Fair Value as % of Cost - Less than twelve months	99.00%	99.00%
Unrealized Loss - Twelve months or more	$ (1)	$ 0
Fair Value - Twelve months or more	$ 30	$ 0
Fair Value as % of Cost - Twelve months or more	97.00%	0.00%
Asset-backed securities
Available-for-sale securities in a continuous unrealized loss position
Unrealized Loss - Less than twelve months	$ (77)	$ (7)
Fair Value - Less than twelve months	$ 5,406	$ 1,195
Fair Value as % of Cost - Less than twelve months	99.00%	99.00%
Unrealized Loss - Twelve months or more	$ (23)	$ (9)
Fair Value - Twelve months or more	$ 629	$ 299
Fair Value as % of Cost - Twelve months or more	96.00%	97.00%
Corporate and other
Available-for-sale securities in a continuous unrealized loss position
Unrealized Loss - Less than twelve months	$ (306)	$ (20)
Fair Value - Less than twelve months	$ 10,378	$ 2,031
Fair Value as % of Cost - Less than twelve months	97.00%	99.00%
Unrealized Loss - Twelve months or more	$ (128)	$ (18)
Fair Value - Twelve months or more	$ 2,078	$ 603
Fair Value as % of Cost - Twelve months or more	94.00%	97.00%
Equity securities
Available-for-sale securities in a continuous unrealized loss position
Unrealized Loss - Less than twelve months		$ (22)
Fair Value - Less than twelve months		$ 158
Fair Value as % of Cost - Less than twelve months		88.00%
Unrealized Loss - Twelve months or more		$ (1)
Fair Value - Twelve months or more		$ 13
Fair Value as % of Cost - Twelve months or more		93.00%
Common stocks
Available-for-sale securities in a continuous unrealized loss position
Unrealized Loss - Less than twelve months		$ (22)
Fair Value - Less than twelve months		$ 117
Fair Value as % of Cost - Less than twelve months		84.00%
Unrealized Loss - Twelve months or more		$ 0
Fair Value - Twelve months or more		$ 0
Fair Value as % of Cost - Twelve months or more		0.00%
Perpetual preferred stocks
Available-for-sale securities in a continuous unrealized loss position
Unrealized Loss - Less than twelve months		$ 0
Fair Value - Less than twelve months		$ 41
Fair Value as % of Cost - Less than twelve months		100.00%
Unrealized Loss - Twelve months or more		$ (1)
Fair Value - Twelve months or more		$ 13
Fair Value as % of Cost - Twelve months or more		93.00%

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Investments - Credit portion of other-than-temporary impairments on fixed maturities for which the non-credit portion of an impairment has been recognized in OCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Balance at January 1	$ 145	$ 153	$ 160
Additional credit impairments on:
Previously impaired securities	1	1	2
Securities without prior impairments	1	3	1
Reductions due to sales or redemptions	(5)	(12)	(10)
Balance at December 31	$ 142	$ 145	$ 153

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Investments - Scheduled maturities of available for sale fixed maturities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Fair Value Percent, Fiscal Year Maturity [Abstract]
Average life of ABS	4 years 6 months
Average life of MBS	4 years 6 months
Securities With Non-Credit Other Than Temporary Impairment Charges [Member]
Fair Value Percent, Fiscal Year Maturity [Abstract]
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	$ (4)	$ (4)
Fixed maturities
Amortized Cost Basis, Fiscal Year Maturity [Abstract]
One year or less	1,310
After one year through five years	8,521
After five years through ten years	14,235
After ten years	4,609
Fixed maturities amortized cost, Subtotal	28,675
ABS (average life of approximately 4.5 years)	9,781
MBS (average life of approximately 4.5 years)	3,381
Amortized Cost	41,837
Fair Value, Fiscal Year Maturity [Abstract]
One year or less	1,318
After one year through five years	8,554
After five years through ten years	14,044
After ten years	4,606
Fixed maturities fair value, Subtotal	28,522
ABS (average life of approximately 4.5 years)	9,811
MBS (average life of approximately 4.5 years)	3,664
Fair Value	$ 41,997
Fair Value Percent, Fiscal Year Maturity [Abstract]
One year or less	3.00%
After one year through five years	20.00%
After five years through ten years	34.00%
After ten years	11.00%
Fixed maturities fair value, Subtotal, Percent	68.00%
ABS (average life of approximately 4.5 years)	23.00%
MBS (average life of approximately 4.5 years)	9.00%
Fair value, Total, Percent	100.00%

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Investments - Components of the net unrealized gain on securities that is included in AOCI in the Balance Sheet (Details) - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017
Unrealized gain on:
Pretax		$ 105	$ 1,063
Deferred Tax		(22)	(223)
Net		83	840
Total investments
Unrealized gain on:
Pretax			1,620
Deferred Tax			(340)
Net			1,280
Total fixed maturities
Unrealized gain on:
Pretax		160	1,341
Deferred Tax		(34)	(282)
Net		126	1,059
Fixed maturities — annuity segment
Unrealized gain on:
Pretax	[1]	101	1,082
Deferred Tax	[1]	(21)	(227)
Net	[1]	80	855
Fixed maturities — all other
Unrealized gain on:
Pretax		59	259
Deferred Tax		(13)	(55)
Net		46	204
Equity securities
Unrealized gain on:
Pretax	[2]		279
Deferred Tax	[2]		(58)
Net	[2]		221
Deferred policy acquisition costs — annuity segment
Unrealized gain on:
Pretax		(42)	(433)
Deferred Tax		9	91
Net		(33)	(342)
Annuity benefits accumulated
Unrealized gain on:
Pretax		(14)	(137)
Deferred Tax		3	29
Net		(11)	(108)
Unearned revenue
Unrealized gain on:
Pretax		1	13
Deferred Tax		0	(3)
Net		$ 1	$ 10

[1] Net unrealized gains on fixed maturity investments supporting AFG’s annuity benefits accumulated.

[2] As discussed in Note A — “Accounting Policies — Investments,” effective January 1, 2018, all equity securities other than those accounted for under the equity method are carried at fair value through net earnings.

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Investments - Schedule of sources of net investment income (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net Investment Income [Line Items]
Gross investment income		$ 2,116	$ 1,852	$ 1,716
Investment expenses		(22)	(21)	(20)
Net investment income		2,094	1,831	1,696
Fixed maturities
Net Investment Income [Line Items]
Gross investment income		1,742	1,607	1,510
Equity in earnings of partnerships and similar investments
Net Investment Income [Line Items]
Gross investment income		161	64	44
Other
Net Investment Income [Line Items]
Gross investment income		112	102	81
Investment income | Equity securities
Net Investment Income [Line Items]
Gross investment income		79	73	77
Accounting Standards Update 2016-01 | Equity securities
Net Investment Income [Line Items]
Gross investment income	[1]	$ 22	$ 6	$ 4

[1] As discussed in Note A — “Accounting Policies — Investments,” AFG adopted guidance in January 2018 that requires all equity securities other than those accounted for under the equity method to be reported at fair value with holding gains and losses recognized in net earnings. Although the change in the fair value of the majority of AFG’s equity securities is recorded in realized gains (losses) on securities, AFG records holding gains and losses in net investment income on equity securities classified as “trading” under the previous guidance and on a small portfolio of limited partnership and similar investments that do not qualify for the equity method of accounting.

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Investments - Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments
Realized before impairments		$ (247)	$ 78	$ 135
Realized - impairments		(19)	(73)	(116)
Total realized gains (losses) on securities		(266)	5	19
Net of tax
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments
Realized before impairments		(195)	51	85
Realized - impairments		(15)	(48)	(72)
Total realized gains (losses) on securities		(210)	3	13
Change in unrealized		(536)	436	72
Total pretax
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments
Realized before impairments		(247)	78	135
Realized - impairments		(19)	(73)	(116)
Total realized gains (losses) on securities		(266)	5	19
Change in unrealized		(679)	441	105
Fixed maturities
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments
Realized before impairments		6	17	36
Realized - impairments		(26)	(20)	(38)
Total realized gains (losses) on securities		(20)	(3)	(2)
Change in unrealized		(1,181)	532	90
Equity securities
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments
Realized before impairments		(265)	70	106
Realized - impairments		0	(64)	(93)
Total realized gains (losses) on securities		(265)	6	13
Change in unrealized		0	128	67
Mortgage loans and other investments
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments
Realized before impairments		1	(6)
Realized - impairments		0	(4)
Total realized gains (losses) on securities		1	(10)
Change in unrealized		0	0
Other, Including DPAC and reserves on annuities and long-term care
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments
Realized before impairments	[1]	11	(3)	(7)
Realized - impairments	[1]	7	15	15
Total realized gains (losses) on securities	[1]	18	12	8
Change in unrealized	[1]	502	(219)	(52)
Total tax effects
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments
Realized before impairments		52	(27)	(48)
Realized - impairments		4	25	41
Total realized gains (losses) on securities		56	(2)	(7)
Change in unrealized		143	(5)	(37)
Effects Of Tax Cuts And Jobs Act Of 2017
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments
Realized before impairments		0	0
Realized - impairments		0	0
Total realized gains (losses) on securities		0	0
Change in unrealized		0	149
Other tax effects
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments
Realized before impairments		52	(27)
Realized - impairments		4	25
Total realized gains (losses) on securities		56	(2)
Change in unrealized		$ 143	$ (154)
Noncontrolling interests
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments
Realized before impairments				(2)
Realized - impairments				3
Total realized gains (losses) on securities				1
Change in unrealized				$ 4

[1] Primarily adjustments to deferred policy acquisition costs and reserves related to the annuity business.

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Investments - Holding gains (losses) on equity securities still held (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Holding Gains (Losses) on Equity Securities Still Held [Line Items]
Realized gains (losses) on securities		$ (266)	$ 5	$ 19
Gross investment income		2,116	1,852	1,716
Equity securities
Holding Gains (Losses) on Equity Securities Still Held [Line Items]
Realized gains (losses) on securities		(265)	$ 6	$ 13
Accounting Standards Update 2016-01 | Equity securities still owned | Equity securities
Holding Gains (Losses) on Equity Securities Still Held [Line Items]
Net holding gains (losses) on equity securities		(257)
Accounting Standards Update 2016-01 | Realized gains (losses) on securities | Equity securities still owned | Equity securities
Holding Gains (Losses) on Equity Securities Still Held [Line Items]
Realized gains (losses) on securities		(279)
Net holding gains (losses) on equity securities	$ (228)	(279)
Accounting Standards Update 2016-01 | Investment income | Equity securities still owned | Equity securities
Holding Gains (Losses) on Equity Securities Still Held [Line Items]
Gross investment income		$ 22

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Investments - Gross realized gains and losses on available for sale fixed maturity security investment transactions (Details) - Fixed maturities - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Gross realized gains and losses on the sale of available for sale fixed maturity security investments
Gross gains	$ 22	$ 43	$ 55
Gross losses	$ (14)	$ (20)	$ (10)

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Derivatives - Narrative (Details)	12 Months Ended
	Dec. 31, 2018 USD ($) swap	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Carrying value of collateral received to support purchased call options	$ 103,000,000	$ 389,000,000
Not Designated as Hedging Instrument | Fixed-indexed and variable-indexed annuities (embedded derivative) | Annuity benefits
Derivative Instruments, Gain (Loss) [Line Items]
The portion of the change in fair value of the embedded derivative related to the unlocking of actuarial assumptions	(44,000,000)	(25,000,000)	$ (17,000,000)
Designated as Hedging Instrument | Interest rate swaps | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of derivative instrument outstanding	$ 2,350,000,000.00	1,580,000,000.00
Designated as Hedging Instrument | Interest rate swaps | Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Number of interest rate swaps designated and qualifying as a cash flow hedges | swap	16
Number of interest rate swaps entered into during the period | swap	6
Gain (loss) reclassified from AOCI into net investment income	$ (3,000,000)	6,000,000	7,000,000
Gain (loss) on cash flow hedge ineffectiveness recorded in Net Earnings	0	0	$ 0
Collateral receivable supporting interest rate swaps	135,000,000	70,000,000
Designated as Hedging Instrument | Interest rate swaps | Cash Flow Hedges | Other assets
Derivative Instruments, Gain (Loss) [Line Items]
Net derivatives, at fair value	16,000,000
Designated as Hedging Instrument | Interest rate swaps | Cash Flow Hedges | Other assets | Maximum
Derivative Instruments, Gain (Loss) [Line Items]
Net derivatives, at fair value		1,000,000
Designated as Hedging Instrument | Interest rate swaps | Cash Flow Hedges | Other liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Net derivatives, at fair value	(46,000,000)	$ (31,000,000)
Designated as Hedging Instrument | Interest rate swaps | Cash Flow Hedges | New interest rate swaps entered into during the period
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of derivative instrument outstanding	$ 911,000,000

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Derivatives - Derivatives that do not qualify for hedge accounting under GAAP included in the Balance Sheet at fair value (Details) - Not Designated as Hedging Instrument - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Derivatives included in AFG' s Balance Sheet at fair value
Derivative asset, at fair value	$ 293	$ 810
Derivative liability, at fair value	2,723	2,546
MBS with embedded derivatives | Fixed maturities
Derivatives included in AFG' s Balance Sheet at fair value
Derivative asset, at fair value	109	105
Public company warrants | Equity securities
Derivatives included in AFG' s Balance Sheet at fair value
Derivative asset, at fair value	0	4
Fixed-indexed and variable-indexed annuities (embedded derivative) | Annuity benefits accumulated
Derivatives included in AFG' s Balance Sheet at fair value
Derivative liability, at fair value	2,720	2,542
Equity index call options | Equity index call options
Derivatives included in AFG' s Balance Sheet at fair value
Derivative asset, at fair value	184	701
Equity index put options | Other liabilities
Derivatives included in AFG' s Balance Sheet at fair value
Derivative liability, at fair value	1	0
Reinsurance contract (embedded derivative) | Other liabilities
Derivatives included in AFG' s Balance Sheet at fair value
Derivative liability, at fair value	$ 2	$ 4

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Derivatives - Gain (loss) included in the Statement of Earnings for changes in the fair value of derivatives that do not qualify for hedge accounting (Details) - Not Designated as Hedging Instrument - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net		$ (103)	$ (103)	$ (80)
MBS with embedded derivatives | Realized gains (losses) on securities
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net		(7)	(6)	(9)
Public company warrants | Realized gains (losses) on securities
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net		(3)	0	0
Fixed-indexed and variable-indexed annuities (embedded derivative) | Annuity benefits
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	[1]	204	(589)	(211)
Equity index call options | Annuity benefits
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net		(298)	494	141
Equity index put options | Annuity benefits
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net		(1)	0	0
Reinsurance contract (embedded derivative) | Net investment income
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net		$ 2	$ (2)	$ (1)

[1] The change in fair value of the embedded derivative includes losses related to unlocking of actuarial assumptions of $44 million in 2018, $25 million in 2017 and $17 million in 2016.

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Deferred Policy Acquisition Costs - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Deferred Policy Acquisition Costs Disclosures [Abstract]
Accumulated amortization of present value of future profits	$ 148	$ 141
Approximate annual rate of decrease in present value of future profits during next five years	12.50%

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Deferred Policy Acquisition Costs - Progression of deferred policy acquisition costs (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Movement Analysis of Deferred Policy Acquisition Costs and Present Value of Future Profits [Roll Forward]
Deferred policy acquisition costs and present value of future profits, beginning balance		$ 1,216	$ 1,239	$ 1,184
Deferred policy acquisition costs and present value of future profits, additions		940	817	774
Deferred policy acquisition costs and present value of future profits, periodic amortization		(908)	(744)	(722)
Deferred policy acquisition costs and present value of future profits, annuity unlocking		29	41	29
Deferred policy acquisition costs and present value of future profits, change included in realized gains		15	10	8
Deferred policy acquisition costs and present value of future profits, foreign currency translation		(2)	0	(3)
Deferred policy acquisition costs and present value of future profits, other			10
Deferred policy acquisition costs and present value of future profits, change in unrealized		392	(157)	(31)
Deferred policy acquisition costs and present value of future profits, ending balance		1,682	1,216	1,239
Property and casualty insurance
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Deferred policy acquisition costs, beginning balance		270	238	226
Deferred policy acquisition costs, additions		675	588	535
Deferred policy acquisition costs, periodic amortization		(644)	(556)	(520)
Deferred policy acquisition costs, foreign currency translation		(2)	0	(3)
Deferred policy acquisition costs, ending balance		299	270	238
Annuity and Run-off Long-term Care and Life
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Deferred policy acquisition costs, beginning balance		1,217	1,110	1,018
Deferred policy acquisition costs, additions		263	225	230
Deferred policy acquisition costs, periodic amortization		(238)	(161)	(169)
Deferred policy acquisition costs, annuity unlocking		29	34	25
Deferred policy acquisition costs, change included in realized gains		14	9	6
Deferred policy acquisition costs, ending balance		1,285	1,217	1,110
Movement in Deferred Sales Inducements [Roll Forward]
Deferred sales inducements, beginning balance		102	110	119
Deferred sales inducements, additions		2	4	9
Deferred sales inducements, periodic amortization		(19)	(19)	(24)
Deferred sales inducements, annuity unlocking		0	6	4
Deferred sales inducements, change included in realized gains		1	1	2
Deferred sales inducements, ending balance		86	102	110
Movement in Present Value of Future Insurance Profits [Roll Forward]
Present value of future profits, beginning balance		49	46	55
Present value of future profits, periodic amortization		(7)	(8)	(9)
Present value of future profits, annuity unlocking		0	1	0
Present value of future profits, other			10
Present value of future profits, ending balance		42	49	46
Movement in Unrealized Gains (Losses) Related to Deferred Policy Acquisition Costs and Present Value of Future Profits [Roll Forward]
Unrealized investment gains (losses), beginning balance	[1]	(422)	(265)	(234)
Unrealized investment gains (losses), change in unrealized	[1]	392	(157)	(31)
Unrealized investment gains (losses), ending balance	[1]	(30)	(422)	(265)
Movement Analysis of Deferred Policy Acquisition Costs and Present Value of Future Profits [Roll Forward]
Deferred policy acquisition costs and present value of future profits, beginning balance		946	1,001	958
Deferred policy acquisition costs and present value of future profits, additions		265	229	239
Deferred policy acquisition costs and present value of future profits, periodic amortization		(264)	(188)	(202)
Deferred policy acquisition costs and present value of future profits, annuity unlocking		29	41	29
Deferred policy acquisition costs and present value of future profits, change included in realized gains		15	10	8
Deferred policy acquisition costs and present value of future profits, other			10
Deferred policy acquisition costs and present value of future profits, change in unrealized		392	(157)	(31)
Deferred policy acquisition costs and present value of future profits, ending balance		1,383	946	1,001
Excluding Unrealized Gains | Annuity and Run-off Long-term Care and Life
Movement Analysis of Deferred Policy Acquisition Costs and Present Value of Future Profits [Roll Forward]
Deferred policy acquisition costs and present value of future profits, beginning balance		1,368	1,266	1,192
Deferred policy acquisition costs and present value of future profits, change in unrealized		0	0	0
Deferred policy acquisition costs and present value of future profits, ending balance		$ 1,413	$ 1,368	$ 1,266

[1] Adjustments to DPAC related to net unrealized gains/losses on securities and cash flow hedges.

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Managed Investment Entities - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) collateralizedloanobligation	Dec. 31, 2017 USD ($) collateralizedloanobligation	Dec. 31, 2016 USD ($) collateralizedloanobligation
Variable Interest Entity [Line Items]
Percentage of investment of most subordinate debt tranche, Minimum	15.00%
Percentage of investment of most subordinate debt tranche, Maximum	60.90%
Number of collateralized loan obligation entities | collateralizedloanobligation	15
Number of collateralized loan obligation entities formed during the period | collateralizedloanobligation	1	2	2
Face amount of managed investment entities liabilities purchased by subsidiaries after issuance date	$ 7	$ 71	$ 24
Amount paid by subsidiaries to purchase managed investment entities liabilities after issuance date	7	71	17
Proceeds received by subsidiaries related to sales and redemptions of managed investment entities liabilities	$ 45	$ 103	115
Number of collateralized loan obligation entities that were substantially liquidated during the period | collateralizedloanobligation	1	2
Difference between aggregate unpaid principal balance and fair value of CLOs' fixed maturity investments	$ 232	$ 55
Difference between aggregate unpaid principal balance and fair value of CLOs' debt	241	118
Carrying amount of CLO loans in default		1
Aggregate unpaid principal balance of CLO loans in default	0	8
Variable interest entity, primary beneficiary
Variable Interest Entity [Line Items]
Aggregate fair value of investment in collateralized loan obligations	188	215	216
New collateralized loan obligation entities
Variable Interest Entity [Line Items]
Face value of liabilities issued by managed investment entities on issuance date	463	865	866
Face amount of managed investment entities liabilities purchased by subsidiaries at issuance date	31	$ 48	$ 64
Subordinated debt obligations | Variable interest entity, primary beneficiary
Variable Interest Entity [Line Items]
Aggregate fair value of investment in collateralized loan obligations	$ 125

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Managed Investment Entities - Selected financial information related to CLOs (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Gains (losses) on change in fair value of assets/liabilities:
Assets	[1]	$ (189)	$ (8)	$ 131
Liabilities	[1]	168	20	(116)
Management fees paid to AFG		16	18	17
CLO earnings (losses) attributable to AFG Shareholders	[2]	7	23	37
Variable interest entity, primary beneficiary
Variable Interest Entity [Line Items]
Investment in CLO tranches		$ 188	$ 215	$ 216

[1] Included in revenues in AFG’s Statement of Earnings.

[2] Included in earnings before income taxes in AFG’s Statement of Earnings.

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Goodwill and Other Intangibles - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill acquired during period	$ 8	$ 8
Amortizable intangible assets related to property and casualty insurance acquisitions	54	54	$ 26
Accumulated amortization	39	39	30
Amortization of intangible assets		$ 9	$ 8	$ 8
Weighted average useful life of finite-lived intangible assets acquired		7 years
Future amortization of intangibles in next year	12	$ 12
Future amortization of intangibles in year two	12	12
Future amortization of intangibles in year three	6	6
Future amortization of intangibles in year four	4	4
Future amortization of intangibles in year five	4	4
Future amortization of intangibles after year five	$ 16	$ 16

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Goodwill and Other Intangibles - Changes in the carrying value of goodwill (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Changes in the carrying value of goodwill by reporting segment
Goodwill, Beginning balance	$ 207	$ 207	$ 199	$ 199	$ 199
Goodwill, acquisition of subsidiary	8	8
Goodwill, Ending balance	207	207
Property and Casualty
Changes in the carrying value of goodwill by reporting segment
Goodwill, Beginning balance	176	176	168	168	168
Goodwill, acquisition of subsidiary		8
Goodwill, Ending balance	176	176
Annuity
Changes in the carrying value of goodwill by reporting segment
Goodwill, Beginning balance	31	31	$ 31	$ 31	$ 31
Goodwill, acquisition of subsidiary		0
Goodwill, Ending balance	$ 31	$ 31

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Long-Term Debt - Narrative (Details) - USD ($)	1 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 11, 2017	Nov. 30, 2017	Aug. 31, 2017	Jun. 30, 2017	Nov. 10, 2016	Aug. 31, 2016	Jun. 30, 2015
Long-term Debt, Fiscal Year Maturity [Abstract]
Scheduled principal payments on debt in next year		$ 0
Scheduled principal payments on debt in year two		0
Scheduled principal payments on debt in year three		0
Scheduled principal payments on debt in year four		0
Scheduled principal payments on debt in year five		0
Principal	$ 1,318,000,000	1,318,000,000	$ 1,318,000,000
Cash interest payments on long-term debt		59,000,000	85,000,000	$ 75,000,000
AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Revolving credit line		500,000,000
Amount borrowed under AFG revolving credit facility	0	$ 0	0
Interest rate description of fair value hedge activity		three-month LIBOR plus 8.099%
Interest rate description for revolving credit facility		1.00% to 1.875% (currently 1.375%) over LIBOR
LIBOR | AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Interest rate on revolving debt facility		1.375%
LIBOR | AFG | Minimum
Long-term Debt, Fiscal Year Maturity [Abstract]
Interest rate on revolving debt facility		1.00%
LIBOR | AFG | Maximum
Long-term Debt, Fiscal Year Maturity [Abstract]
Interest rate on revolving debt facility		1.875%
Interest rate swaps | Fair Value Hedge | Designated as Hedging Instrument | AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Cash interest received on long-term debt affiliated with interest rate swap			2,000,000	$ 3,000,000
Interest rate swaps | Fair Value Hedge | Designated as Hedging Instrument | LIBOR | AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Basis spread on variable interest rate					8.099%
Senior Notes | AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Principal	1,018,000,000	$ 1,018,000,000	1,018,000,000
Senior Notes | 4.50% Senior Notes due June 2047 | AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Senior Notes, aggregate principal amount						$ 240,000,000		$ 350,000,000
Senior Notes, issuance price as a percentage of par value						102.374%		99.46%
Principal	590,000,000	$ 590,000,000	590,000,000
Interest rate on debt instruments		4.50%				4.50%		4.50%
Senior Notes | 3.50% Senior Notes due August 2026 | AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Senior Notes, aggregate principal amount						$ 125,000,000				$ 300,000,000
Senior Notes, issuance price as a percentage of par value						99.698%				99.608%
Principal	425,000,000	$ 425,000,000	425,000,000
Interest rate on debt instruments		3.50%				3.50%				3.50%
Senior Notes | 9-7/8% Senior Notes due June 2019 | AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Senior Notes, amount of the original debt instrument that was redeemed					$ 350,000,000
Senior Notes, amount of the original debt instrument that was redeemed plus a make-whole premium					$ 388,000,000
Interest rate on debt instruments					9.875%						9.875%
Senior Notes | 6-3/8% Senior Notes due June 2042 | AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Senior Notes, amount of the original debt instrument that was redeemed								$ 230,000,000
Interest rate on debt instruments								6.375%
Senior Notes | 5-3/4% Senior Notes due August 2042 | AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Senior Notes, amount of the original debt instrument that was redeemed							$ 125,000,000
Interest rate on debt instruments							5.75%
Subordinated Debt | AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Principal	300,000,000	$ 300,000,000	300,000,000
Subordinated Debt | 6-1/4% Subordinated Debentures due September 2054 | AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Principal	150,000,000	$ 150,000,000	150,000,000
Interest rate on debt instruments		6.25%
Subordinated Debt | 6% Subordinated Debentures due November 2055 | AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Principal	150,000,000	$ 150,000,000	$ 150,000,000
Interest rate on debt instruments		6.00%
Revolving Credit Facility | National Interstate
Long-term Debt, Fiscal Year Maturity [Abstract]
Principal									$ 18,000,000
Revolving Credit Facility | Line of Credit | National Interstate
Long-term Debt, Fiscal Year Maturity [Abstract]
Principal									$ 6,000,000
Make-whole premium | Senior Notes | 9-7/8% Senior Notes due June 2019 | AFG
Long-term Debt, Fiscal Year Maturity [Abstract]
Make-whole premium included in the loss on the retirement of debt	$ (38,000,000)

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Long-Term Debt - Schedule of long-term debt (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Summary of Carrying value of long-term debt
Principal	$ 1,318	$ 1,318
Discount and Issue Costs	(16)	(17)
Carrying Value	1,302	1,301
AFG
Summary of Carrying value of long-term debt
Carrying Value	1,302	1,301
Senior Notes | AFG
Summary of Carrying value of long-term debt
Principal	1,018	1,018
Discount and Issue Costs	(6)	(7)
Carrying Value	1,012	1,011
Senior Notes | 4.50% Senior Notes due June 2047 | AFG
Summary of Carrying value of long-term debt
Principal	590	590
Discount and Issue Costs	(2)	(2)
Carrying Value	588	588
Senior Notes | 3.50% Senior Notes due August 2026 | AFG
Summary of Carrying value of long-term debt
Principal	425	425
Discount and Issue Costs	(4)	(5)
Carrying Value	421	420
Senior Notes | Other | AFG
Summary of Carrying value of long-term debt
Principal	3	3
Discount and Issue Costs	0	0
Carrying Value	3	3
Subordinated Debentures | AFG
Summary of Carrying value of long-term debt
Principal	300	300
Discount and Issue Costs	(10)	(10)
Carrying Value	290	290
Subordinated Debentures | 6-1/4% Subordinated Debentures due September 2054 | AFG
Summary of Carrying value of long-term debt
Principal	150	150
Discount and Issue Costs	(5)	(5)
Carrying Value	145	145
Subordinated Debentures | 6% Subordinated Debentures due November 2055 | AFG
Summary of Carrying value of long-term debt
Principal	150	150
Discount and Issue Costs	(5)	(5)
Carrying Value	$ 145	$ 145

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Shareholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended		12 Months Ended
	Dec. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Rate of options exercisable per year, commencing one year after grant				20% per year commencing one year after grant
Duration of options expiration, after date of grant				10 years
Total intrinsic value of options exercised				$ 57	$ 65	$ 38
Cash received from the exercise of stock options				29	34	32
Tax benefit related to exercise of stock options				9	18	11
Total compensation expense related to stock incentive plans				23	30	28
Tax benefit related to compensation costs				13	27	19
Net of tax unrealized gains (losses) related to credit-only impaired securities	$ 68			$ 58	68	$ 52
Impact of the U.S. corporate tax rate change on AOCI	4				$ 4
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Common Stock vesting period				3 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Common Stock vesting period				4 years
Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock reserved for issuance under stock incentive plans (shares)				7,000,000.0
Common Stock options issued under stock incentive plan (shares)				0	0	0
Annual Equity Bonus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other benefit plans, shares issued (shares)		45,804	47,826
Common Stock issued, fair value per share (USD per share)		$ 115.49	$ 96.13
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to equity-based awards that have yet to vest				$ 3
Weighted average period of cost expected to be recognized				1 year
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Common Stock vested during period, fair value				$ 10	$ 14	$ 10
Unrecognized compensation expense related to equity-based awards that have yet to vest				$ 35
Weighted average period of cost expected to be recognized				2 years 6 months
Accounting Standards Update 2018-02 | Tax Cuts and Jobs Act of 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax Cuts and Jobs Act of 2017, Reclassification from AOCI to Retained Earnings, Tax Effect	$ 145
Equity securities | Accounting Standards Update 2016-01
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Impact of the U.S. corporate tax rate change on AOCI							$ (221)

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Shareholders' Equity - Preferred stock authorized for issuance (Details)	Dec. 31, 2018 $ / shares shares
Voting Preferred Stock
Class of Stock [Line Items]
Preferred Stock, par value | $ / shares	$ 0
Preferred Stock, shares authorized | shares	12,500,000.0
Nonvoting Preferred Stock
Class of Stock [Line Items]
Preferred Stock, par value | $ / shares	$ 0
Preferred Stock, shares authorized | shares	12,500,000.0

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Shareholders' Equity - Data relating to grants of restricted stock (Details) - Restricted Stock	12 Months Ended
	Dec. 31, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at January 1, 2018 | shares	759,035
Granted | shares	200,625
Vested | shares	(86,177)
Forfeited | shares	(7,553)
Outstanding at December 31, 2018 | shares	865,930
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Average grant date fair value, Outstanding, Beginning balance | $ / shares	$ 73.40
Average grant date fair value, Granted | $ / shares	112.86
Average grant date fair value, Vested | $ / shares	56.89
Average grant date fair value, Forfeited | $ / shares	87.47
Average grant date fair value, Outstanding, Ending balance | $ / shares	$ 84.06

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Shareholders' Equity - Data for stock options issued under the stock incentive plans (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at January 1, 2018 | shares	3,467,340
Exercised | shares	(778,270)
Forfeited/Cancelled | shares	(21,628)
Outstanding at December 31, 2018 | shares	2,667,442
Options exercisable at December 31, 2018 | shares	2,253,003
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Average exercise price, Beginning balance | $ / shares	$ 45.80
Average exercise price, Exercised | $ / shares	37.66
Average exercise price, Forfeited/Cancelled | $ / shares	42.10
Average exercise price, Ending balance | $ / shares	48.20
Average exercise price, Options exercisable | $ / shares	$ 45.95
Average remaining contractual term, Options outstanding	4 years 2 months 12 days
Average remaining contractual term, Options exercisable	3 years 10 months 24 days
Aggregate intrinsic value, Options outstanding | $	$ 113
Aggregate intrinsic value, Options exercisable | $	$ 100

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Shareholders' Equity - Progression of the components of accumulated other comprehensive income (Details) - USD ($) $ in Millions			12 Months Ended
		Dec. 31, 2017	Dec. 31, 2018		Dec. 31, 2017		Dec. 31, 2016	Jan. 01, 2018
Accumulated Other Comprehensive Income [Roll Forward]
AOCI beginning balance			$ 813
Other comprehensive income (loss), net of tax			(544)		$ 296		$ 67
Cumulative effect of accounting change		$ 4			4
Other comprehensive income (loss), net of tax, acquisition of noncontrolling interest							(315)
AOCI ending balance		813	48		813
Accumulated net investment gain (loss) including portion attributable to noncontrolling interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), unrealized holding gains on securities arising during the period, Pretax			(689)		456		124
Other comprehensive income (loss), unrealized holding gains on securities arising during the period, tax			145		(159)		(44)
Other comprehensive income (loss), unrealized holding gains on securities arising during the period, net of tax			(544)		297		80
Reclassification from accumulated other comprehensive income, pretax	[1]		10		(15)		(19)
Reclassification from accumulated other comprehensive income, tax	[1]		(2)		5		7
Reclassification from accumulated other comprehensive income, net of tax			8		(10)		(12)
Accumulated Other Comprehensive Income [Roll Forward]
Other comprehensive income (loss), pretax			(679)		441		105
Other comprehensive income (loss), tax			143		(154)		(37)
Other comprehensive income (loss), net of tax			(536)		287		68
Accumulated net investment gain (loss) attributable to noncontrolling interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), unrealized holding gains on securities arising during the period, net of tax			0		0		(4)
Reclassification from accumulated other comprehensive income, net of tax	[1]		0		0		(1)
Accumulated Other Comprehensive Income [Roll Forward]
Other comprehensive income (loss), net of tax			0		0		(5)
Accumulated net investment gain (loss) attributable to parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), unrealized holding gains on securities arising during the period, net of tax			(544)		297		76
Reclassification from accumulated other comprehensive income, net of tax			8		(10)		(13)
Accumulated Other Comprehensive Income [Roll Forward]
AOCI beginning balance			840	[2]	404	[2]	332
Other comprehensive income (loss), net of tax			(536)		287		63
Cumulative effect of accounting change	[3]							$ (221)
Other comprehensive income (loss), net of tax, acquisition of noncontrolling interest	[3]						9
AOCI ending balance	[2]	840	83		840		404
Accumulated net gain (loss) from cash flow hedges including portion attributable to noncontrolling interest
Accumulated Other Comprehensive Income [Roll Forward]
Other comprehensive income (loss), pretax			2		(6)		(12)
Other comprehensive income (loss), tax			0		2		4
Other comprehensive income (loss), net of tax			2		(4)		(8)
Accumulated net gain (loss) from cash flow hedges attributable to noncontrolling interest
Accumulated Other Comprehensive Income [Roll Forward]
Other comprehensive income (loss), net of tax			0		0		0
Accumulated net gain (loss) from cash flow hedges attributable to parent
Accumulated Other Comprehensive Income [Roll Forward]
AOCI beginning balance			(13)		(7)		1
Other comprehensive income (loss), net of tax			2		(4)		(8)
Cumulative effect of accounting change	[3]							0
AOCI ending balance		(13)	(11)		(13)		(7)
Accumulated foreign currency adjustment including portion attributable to noncontrolling interest
Accumulated Other Comprehensive Income [Roll Forward]
Other comprehensive income (loss), pretax			(9)		9		6
Other comprehensive income (loss), tax			(1)		3		1
Other comprehensive income (loss), net of tax			(10)		12		7
Accumulated foreign currency adjustment attributable to noncontrolling interest
Accumulated Other Comprehensive Income [Roll Forward]
Other comprehensive income (loss), net of tax			0		0		0
Accumulated foreign currency adjustment attributable to parent
Accumulated Other Comprehensive Income [Roll Forward]
AOCI beginning balance			(6)		(15)		(22)
Other comprehensive income (loss), net of tax			(10)		12		7
Cumulative effect of accounting change	[3]							0
AOCI ending balance		(6)	(16)		(6)		(15)
Accumulated defined benefit plans adjustment including portion attributable to noncontrolling interest
Accumulated Other Comprehensive Income [Roll Forward]
Other comprehensive income (loss), pretax			0		1		0
Other comprehensive income (loss), tax			0		0		0
Other comprehensive income (loss), net of tax			0		1		0
Accumulated defined benefit plans adjustment attributable to noncontrolling interest
Accumulated Other Comprehensive Income [Roll Forward]
Other comprehensive income (loss), net of tax			0		0		0
Accumulated defined benefit plans adjustment attributable to parent
Accumulated Other Comprehensive Income [Roll Forward]
AOCI beginning balance			(8)		(7)		(7)
Other comprehensive income (loss), net of tax			0		1		0
Cumulative effect of accounting change	[3]							0
AOCI ending balance		(8)	(8)		(8)		(7)
AOCI including portion attributable to noncontrolling interest
Accumulated Other Comprehensive Income [Roll Forward]
Other comprehensive income (loss), pretax			(686)		445		99
Other comprehensive income (loss), tax			142		(149)		(32)
Other comprehensive income (loss), net of tax			(544)		296		67
AOCI attributable to noncontrolling interest
Accumulated Other Comprehensive Income [Roll Forward]
Other comprehensive income (loss), net of tax			0		0		(5)
AOCI attributable to parent
Accumulated Other Comprehensive Income [Roll Forward]
AOCI beginning balance			813		375		304
Other comprehensive income (loss), net of tax			(544)		296		62
Cumulative effect of accounting change		(221)			(221)			$ (221)	[3]
Other comprehensive income (loss), net of tax, acquisition of noncontrolling interest	[3]						9
AOCI ending balance		813	$ 48		$ 813		$ 375
Tax Cuts and Jobs Act of 2017 | Accumulated net investment gain (loss) attributable to parent
Accumulated Other Comprehensive Income [Roll Forward]
Tax Cuts and Jobs Act of 2017, Reclassification from AOCI to Retained Earnings, Tax Effect	[3]	149
Tax Cuts and Jobs Act of 2017 | Accumulated net gain (loss) from cash flow hedges attributable to parent
Accumulated Other Comprehensive Income [Roll Forward]
Tax Cuts and Jobs Act of 2017, Reclassification from AOCI to Retained Earnings, Tax Effect	[3]	(2)
Tax Cuts and Jobs Act of 2017 | Accumulated defined benefit plans adjustment attributable to parent
Accumulated Other Comprehensive Income [Roll Forward]
Tax Cuts and Jobs Act of 2017, Reclassification from AOCI to Retained Earnings, Tax Effect	[3]	(2)
Tax Cuts and Jobs Act of 2017 | AOCI attributable to parent
Accumulated Other Comprehensive Income [Roll Forward]
Tax Cuts and Jobs Act of 2017, Reclassification from AOCI to Retained Earnings, Tax Effect	[3]	142
Redeemable noncontrolling interest | Tax Cuts and Jobs Act of 2017 | Accumulated foreign currency adjustment attributable to parent
Accumulated Other Comprehensive Income [Roll Forward]
Tax Cuts and Jobs Act of 2017, Reclassification from AOCI to Retained Earnings, Tax Effect	[3]	$ (3)

[1] The reclassification adjustment out of net unrealized gains on securities affected the following lines in AFG’s Statement of Earnings: OCI component Affected line in the statement of earnings Pretax Realized gains (losses) on securities Tax Provision for income taxes Attributable to noncontrolling interests Net earnings attributable to noncontrolling interests

[2] Includes net unrealized gains of $58 million at December 31, 2018 compared to net unrealized gains of $68 million and $52 million at December 31, 2017 and 2016, related to securities for which only the credit portion of an other-than-temporary impairment has been recorded in earnings.

[3] On January 1, 2018, AFG adopted new guidance that requires all equity securities other than those accounted for under the equity method to be reported at fair value with holding gains and losses recognized in net earnings. At the date of adoption, the $221 million net unrealized gain on equity securities classified as available for sale (with unrealized holding gains and losses reported in AOCI) under the prior guidance was reclassified from AOCI to retained earnings as the cumulative effect of an accounting change. Other also includes the December 2017 reclassification of $145 million stranded in AOCI from accounting for the Tax Cuts and Jobs Act of 2017 to retained earnings (see Note A — “Accounting Policies — Income Taxes”), the impact on AOCI of the December 2017 sale of redeemable noncontrolling interests in Neon and the November 2016 acquisition of the noncontrolling interest in NATL (see Note B — “Acquisitions and Sale of Businesses”).

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Income Taxes - Narrative (Details) £ in Millions, $ in Millions			1 Months Ended	3 Months Ended		12 Months Ended
		Jan. 01, 2018	Jan. 31, 2008 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2018 GBP (£)
Income Tax Reconciliation [Line Items]
Statutory rate of income taxes						21.00%	35.00%	35.00%
Payments to acquire additional interest in subsidiaries						$ 0	$ 0	$ 315
Impact of foreign operations included in the provision for income taxes						(2)	21	5
Decrease in the valuation allowance related to the change in the U.S. corporate tax rate						11	(7)	52
Income tax expense (benefit)						122	247	119
Decrease in net deferred tax assets resulting from the changes in the Tax Cuts and Jobs Act of 2017						0	$ 83	$ 0
Effective tax rate excluding the charge related to the exit of certain lines of business within subsidiaries and impact of the change in the U.S. corporate tax rate							31.00%
Effective tax rate excluding the charge related to the exit of certain lines of business within subsidiaries, acquisition of the noncontrolling interest, and restructuring of subsidiaries								35.00%
Income (losses) subject to tax in foreign jurisdictions						(69)	$ (58)	$ (160)
Operating loss carryforwards, valuation allowance						23
Cash payments for income taxes						$ 156	194	308
Limitation on the use of tax credit carryforwards						A SRLY NOL can be used only by the entity that created it and only in years that both it and the consolidated group have taxable income. Approximately $19 million of AFG’s SRLY NOLs expired unutilized at December 31, 2018.
Tax Cuts and Jobs Act implementation complete						true
AFG
Income Tax Reconciliation [Line Items]
Income tax expense (benefit)				$ (56)		$ 122	247	119
National Interstate
Income Tax Reconciliation [Line Items]
Income tax expense (benefit)					$ (66)
Neon Capital Limited
Income Tax Reconciliation [Line Items]
Income tax expense (benefit)				(56)	(111)			(48)
Increase (Decrease) in current taxes payable				(20)	$ (29)
Charge for valuation allowance
Income Tax Reconciliation [Line Items]
Charge for valuation allowance against deferred tax assets						93
Maximum | AFG
Income Tax Reconciliation [Line Items]
Unrecognized tax benefits that would impact the effective tax rate				1		1	1
Interest included in tax provision						1	1	1
Decrease in related accrued interest (are less than in 2017 and 2016)				1			1
Amount of expense for penalties related to a tax position						1	1	1
Income tax penalties accrued				1		1	1
Amount unutilized
Income Tax Reconciliation [Line Items]
Operating loss carryforwards						19
Tax Cuts and Jobs Act of 2017
Income Tax Reconciliation [Line Items]
Statutory rate of income taxes		21.00%
Decrease in net deferred tax assets resulting from the changes in the Tax Cuts and Jobs Act of 2017				$ 83
Tax Cuts and Jobs Act of 2017 | Neon Capital Limited
Income Tax Reconciliation [Line Items]
Decrease in the valuation allowance related to the change in the U.S. corporate tax rate							(61)
United Kingdom
Income Tax Reconciliation [Line Items]
Operating loss carryforwards	[1]					$ 215					£ 168
Property and casualty insurance
Income Tax Reconciliation [Line Items]
Change in AFG’s liability for uncertain tax positions due to the uncertainty in state taxation									$ 1
Tax payments due to resolved uncertainty in state taxation							1
Property and casualty insurance | Other lines
Income Tax Reconciliation [Line Items]
Special charges related to the exit of certain lines of business within subsidiaries								65
Property and casualty insurance | Other lines | Neon Capital Limited
Income Tax Reconciliation [Line Items]
Special charges related to the exit of certain lines of business within subsidiaries								$ 65
Neon Capital Limited
Income Tax Reconciliation [Line Items]
Payments to acquire controlling interest in subsidiaries			$ 75
Percentage ownership of subsidiary			67.00%
Payments to acquire additional interest in subsidiaries										$ 17
Foreign underwriting losses
Income Tax Reconciliation [Line Items]
Impact of foreign operations included in the provision for income taxes							$ 14

[1] £168 million

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Income Taxes - Reconciliation of income taxes at the statutory rate to the provision for income taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Earnings before income taxes (“EBT”)	$ 639	$ 724	$ 787
Income taxes at statutory rate	134	253	275
Effect of tax exempt interest	(13)	(23)	(24)
Effect of adjustments to prior year taxes	(8)	(4)	(2)
Effect of stock-based compensation	(8)	(16)	(9)
Effect of dividends received deduction	(4)	(8)	(7)
Effect of employee stock ownership plan dividend paid deduction	(3)	(5)	(2)
Effect of foreign operations	(2)	21	5
Effect of change in valuation allowance (excluding change in tax rate)	11	(7)	52
Effect of nondeductible expenses	7	6	7
Effect of Neon restructuring	0	(56)	(111)
Effective of change in U.S. corporate tax rate	0	83	0
Effect of acquisition of noncontrolling interest	0	0	(66)
Effect of subsidiaries not in AFG's tax return	0	0	3
Effect of other income tax reconciliation	8	3	(2)
Provision for income taxes as shown in the Statement of Earnings	$ 122	$ 247	$ 119
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Income taxes at statutory rate as a percentage of EBT	21.00%	35.00%	35.00%
Effect of tax exempt interest as a percentage of EBT	(2.00%)	(3.00%)	(3.00%)
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent	(1.00%)	(1.00%)	0.00%
Effect of stock-based compensation as a percentage of EBT	(1.00%)	(2.00%)	(1.00%)
Effect of dividend received deduction as a percentage of EBT	(1.00%)	(1.00%)	(1.00%)
Effect of employee stock ownership plan dividend paid deduction as a percentage of EBT	(1.00%)	(1.00%)	(0.00%)
Effect of foreign operations as a percentage of EBT	0.00%	3.00%	0.00%
Effect of change in valuation allowance (excluding change in tax rate) as a percentage of EBT	2.00%	(1.00%)	7.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent	1.00%	1.00%	1.00%
Effect of Neon restructuring as a percentage of EBT	0.00%	(8.00%)	(14.00%)
Effective of change in U.S. corporate tax rate as a percentage of EBT	0.00%	11.00%	0.00%
Effect of acquisition of noncontrolling interest as a percentage of EBT	0.00%	0.00%	(8.00%)
Effect of subsidiaries not in AFG's tax return as a percentage of EBT	0.00%	0.00%	0.00%
Effect of other income tax reconciliation as a percentage of EBT	1.00%	1.00%	(1.00%)
Provision for income taxes as shown in the Statement of Earnings as a percentage of EBT	19.00%	34.00%	15.00%

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Income Taxes - Total income tax provision (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current taxes:
Federal	$ 196	$ 153	$ 299
State	8	6	12
Deferred taxes:
Federal	(82)	5	(192)
Impact of change in U.S. corporate tax rate	0	83	0
Total Federal deferred taxes	(82)	88	(192)
Provision for income taxes as shown in the Statement of Earnings	$ 122	$ 247	$ 119

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Income Taxes - Operating and capital loss carryforwards available (Details) - Dec. 31, 2018 £ in Millions, $ in Millions		USD ($)	GBP (£)
U.S. | Expiring 2019 - 2022
Operating and capital loss carryforwards [Line Items]
Operating loss carryforwards		$ 112
United Kingdom
Operating and capital loss carryforwards [Line Items]
Operating loss carryforwards	[1]	$ 215	£ 168

[1] £168 million

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Income Taxes - Significant components of deferred tax assets and liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets:
Federal net operating loss carryforwards	$ 23	$ 27
Foreign underwriting losses	93	80
Capital loss carryforwards	0	32
Insurance claims and reserves	743	694
Employee benefits	88	84
Other, net	44	45
Total deferred tax assets before valuation allowance	991	962
Valuation allowance against deferred tax assets	(119)	(109)
Total deferred tax assets	872	853
Deferred tax liabilities:
Investment securities	(70)	(341)
Deferred policy acquisition costs	(291)	(202)
Insurance claims and reserves transition liability	(110)	(128)
Real estate, property and equipment	(36)	(35)
Total deferred tax liabilities	(507)	(706)
Net deferred tax asset (liability)	365	147
Excluding Unrealized Gains
Deferred tax assets:
Federal net operating loss carryforwards	23	27
Foreign underwriting losses	93	80
Capital loss carryforwards	0	32
Insurance claims and reserves	740	665
Employee benefits	88	84
Other, net	44	48
Total deferred tax assets before valuation allowance	988	936
Valuation allowance against deferred tax assets	(119)	(109)
Total deferred tax assets	869	827
Deferred tax liabilities:
Investment securities	(36)	(1)
Deferred policy acquisition costs	(300)	(293)
Insurance claims and reserves transition liability	(110)	(128)
Real estate, property and equipment	(36)	(35)
Total deferred tax liabilities	(482)	(457)
Net deferred tax asset (liability)	387	370
Impact of Unrealized Gains
Deferred tax assets:
Federal net operating loss carryforwards	0	0
Foreign underwriting losses	0	0
Capital loss carryforwards	0	0
Insurance claims and reserves	3	29
Employee benefits	0	0
Other, net	0	(3)
Total deferred tax assets before valuation allowance	3	26
Valuation allowance against deferred tax assets	0	0
Total deferred tax assets	3	26
Deferred tax liabilities:
Investment securities	(34)	(340)
Deferred policy acquisition costs	9	91
Insurance claims and reserves transition liability	0	0
Real estate, property and equipment	0	0
Total deferred tax liabilities	(25)	(249)
Net deferred tax asset (liability)	$ (22)	$ (223)

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Income Taxes - Progression of the liability for uncertain tax positions, excluding interest and penalties (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Progression of the liability for uncertain tax positions, excluding interest and penalties
Balance at January 1	$ 0	$ 1	$ 1
Additions for tax positions of prior years	0	0	0
Reductions for tax positions of prior years	0	0	0
Additions for tax positions of current year	0	0	0
Settlements	0	(1)	0
Balance at December 31	$ 0	$ 0	$ 1

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Contingencies - Narrative (Details) - USD ($) $ in Millions		3 Months Ended
	Dec. 24, 2015	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Loss Contingencies [Line Items]
Reinsurance recoverables on asbestos and environmental reserves, net of allowance					$ 2,942	$ 2,957	$ 2,302	$ 2,201
Property and Casualty Group
Loss Contingencies [Line Items]
Increase in asbestos and environmental reserves		$ 18	$ 89	$ 36
Liability for asbestos and environmental reserves					524
Former railroad and manufacturing operations
Loss Contingencies [Line Items]
Increase in asbestos and environmental reserves		$ 9	$ 24	$ 5
American Premier and its subsidiaries
Loss Contingencies [Line Items]
Liability for environmental and other claims					83
GAFRI
Loss Contingencies [Line Items]
Liability for environmental and other claims					8
Run-off long-term care and life
Loss Contingencies [Line Items]
Contingent capital support agreement amount	$ 35
Contingent capital support agreement term	5 years
A&E reserves | Property and Casualty Group
Loss Contingencies [Line Items]
Reinsurance recoverables on asbestos and environmental reserves, net of allowance					$ 129

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Quarterly Operating Results (Unaudited) - Quarterly results of consolidated operations (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Statement of Earnings
Revenues	$ 1,690	$ 2,008	$ 1,833	$ 1,619	$ 1,808	$ 1,835	$ 1,646	$ 1,576	$ 7,150	$ 6,865	$ 6,498
Net earnings, including noncontrolling interests	(35)	203	208	141	166	11	145	155	517	477	668
Net earnings (losses) attributable to shareholders	$ (29)	$ 204	$ 210	$ 145	$ 166	$ 11	$ 145	$ 153	$ 530	$ 475	$ 649
Earnings Attributable to Shareholders per Common Share:
Basic (USD per share)	$ (0.33)	$ 2.30	$ 2.36	$ 1.64	$ 1.88	$ 0.13	$ 1.64	$ 1.76	$ 5.95	$ 5.40	$ 7.47
Diluted (USD per share)	$ (0.33)	$ 2.26	$ 2.31	$ 1.60	$ 1.84	$ 0.13	$ 1.61	$ 1.72	$ 5.85	$ 5.28	$ 7.33
Average number of Common Shares:
Basic (shares)	89.3	89.1	89.0	88.6	88.2	88.1	87.8	87.2	89.0	87.8	86.9
Diluted (shares)	89.3	90.7	90.7	90.4	90.1	90.0	89.8	89.3	90.6	89.8	88.5

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Quarterly Operating Results (Unaudited) - Realized gains, favorable (adverse) prior year development of the liability for losses and LAE and the impact of derivatives related to Fixed-indexed annuities (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Realized gains (losses) and favorable (adverse) development on unpaid loss and loss adjustment expenses
Realized Gains (Losses) on Securities and Subsidiaries	$ (15)	$ 1	$ 8	$ 2	$ 6	$ (12)	$ 8	$ 3	$ (4)	$ 5
Prior Year Development Favorable (Adverse)	61	31	44	56	66	(52)	22	28	192	64
Impact of derivatives related to FIAs	(47)	(2)	3	13	$ (11)	$ (4)	$ (16)	$ (2)	(33)	$ (33)
Equity securities | Accounting Standards Update 2016-01
Realized gains (losses) and favorable (adverse) development on unpaid loss and loss adjustment expenses
Realized Gains (Losses) on Securities and Subsidiaries	$ (223)	$ 33	$ 23	$ (95)					$ (262)

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Quarterly Operating Results (Unaudited) - Narrative (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Quarterly Operating Results (Unaudited) [Line Items]
S&P 500 Index increase (decrease) during period	(14.00%)
Pretax catastrophe losses					$ 107				$ 103	$ 140
Income tax expense (benefit)									122	247	$ 119
Property and casualty insurance | Other lines
Quarterly Operating Results (Unaudited) [Line Items]
Special charges to increase asbestos and environmental reserves		$ 18			89				18	89	36
Favorable reserve development related to certain lines of business within subsidiaries in connection with a reinsurance to close agreement										18
Property and casualty insurance | Real estate investment
Quarterly Operating Results (Unaudited) [Line Items]
Pretax income from the sale of real estate properties included in other income							$ 13				32
Annuity
Quarterly Operating Results (Unaudited) [Line Items]
S&P 500 impact on annuity earnings before income taxes beyond the impact of derivatives	$ (30)
Other
Quarterly Operating Results (Unaudited) [Line Items]
Special charges to increase asbestos and environmental reserves									9	24	5
Write off of deferred debt issuance cost due to the retirement of debt					4	$ 7
Make-whole premium, settlement of interest rate swap and write off of deferred debt issuance cost included in the loss on the retirement of debt				$ 40						51
Other | Former railroad and manufacturing operations
Quarterly Operating Results (Unaudited) [Line Items]
Special charges to increase asbestos and environmental reserves		$ 9			$ 24
Neon Capital Limited
Quarterly Operating Results (Unaudited) [Line Items]
Income tax expense (benefit)				(56)				$ (111)			(48)
Neon Capital Limited | Property and casualty insurance
Quarterly Operating Results (Unaudited) [Line Items]
Favorable reserve development related to certain lines of business within subsidiaries in connection with a reinsurance to close agreement				42
Neon Capital Limited | Property and casualty insurance | Other lines
Quarterly Operating Results (Unaudited) [Line Items]
Favorable reserve development related to certain lines of business within subsidiaries in connection with a reinsurance to close agreement				18
Neon Capital Limited | Neon Capital Limited | Current lines
Quarterly Operating Results (Unaudited) [Line Items]
Favorable reserve development related to certain lines of business within subsidiaries in connection with a reinsurance to close agreement				24
AFG
Quarterly Operating Results (Unaudited) [Line Items]
Income tax expense (benefit)				(56)					122	$ 247	$ 119
Annuity benefits | Annuity
Quarterly Operating Results (Unaudited) [Line Items]
Charges resulting from updating (unlocking) actuarial assumptions	4		$ 27	$ 3
Equity securities | Accounting Standards Update 2016-01 | Equity securities still owned
Quarterly Operating Results (Unaudited) [Line Items]
Net holding gains (losses) on equity securities									(257)
Equity securities | Accounting Standards Update 2016-01 | Equity securities still owned | Realized gains (losses) on securities
Quarterly Operating Results (Unaudited) [Line Items]
Net holding gains (losses) on equity securities	$ (228)								$ (279)

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Insurance - Narrative (Details) - USD ($) $ in Millions	3 Months Ended					12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Insurance [Line Items]
Carrying value of cash and securities owned by U.S.-based insurance subsidiaries on deposit	$ 1,060					$ 1,060
Carrying value of cash and securities owned by insurance subsidiaries on deposit in support of underwriting activities at Lloyd's	118					118
Undrawn letters of credit	296					296
Undrawn letters of credit, collateralized	0					$ 0
Workers' compensation insurance discount rate						4.50%	4.50%
Workers' compensation insurance discount, which has reduced the liability for unpaid losses and loss adjustment expenses	13		$ 15			$ 13	$ 15
Long-term care insurance reserves, net of reinsurance recoverables	45		39			45	39
Investment in Federal Home Loan Bank capital stock	47					47
Advances from Federal Home Loan Bank	1,100					$ 1,100
Proceeds from Federal Home Loan Bank Advance, Investing Activities	225
Description of variable rate basis						LIBOR
Repayments of advances from Federal Home Loan Bank due in next twelve months	445					$ 445
Repayments of advances from Federal Home Loan Bank due in year two	40					40
Repayments of advances from Federal Home Loan Bank due in year three	611					611
Fair value of fixed maturity investments held as collateral by the Federal Home Loan Bank	1,280					1,280
Interest on advances from Federal Home Loan Bank						20	14	$ 8
Maximum amount of dividends available to be paid by insurance subsidiaries to AFG without prior approval of regulatory authorities	1,300					1,300
Dividends on common stock						(397)	(421)	(187)
Aggregate guaranteed minimum death benefit value on variable annuity polices in force	35		15			$ 35	15
Minimum | LIBOR
Insurance [Line Items]
FHLB advances, basis spread on variable rate						0.15%
Maximum
Insurance [Line Items]
Dividends payments without violating the most restrictive debt covenants, minimum	2,000					$ 2,000
Maximum | LIBOR
Insurance [Line Items]
FHLB advances, basis spread on variable rate						0.24%
Average | LIBOR
Insurance [Line Items]
FHLB advances, basis spread on variable rate						2.68%
FHLB, advances, refinanced terms
Insurance [Line Items]
Advances from Federal Home Loan Bank	40		831			$ 40	831
Catastrophe Bonds
Insurance [Line Items]
Catastrophe reinsurance coverage, excess retention percentage						95.00%
Catastrophe reinsurance coverage, excess retention amount						$ 200
Catastrophe reinsurance coverage, retention amount						104
Catastrophe reinsurance coverage, annual cost						11
Life insurance
Insurance [Line Items]
Increased statutory surplus resulting from reinsurance treaty	2,701		2,132			2,701	2,132
Life insurance in force, ceded premiums	7,690		8,320			7,690	8,320
Life insurance in force, direct premiums	10,820		12,050			10,820	12,050
Reinsurance ceded						22	28	31
Reinsurance recoveries						38	35	41
Variable annuities | Maximum
Insurance [Line Items]
Death benefits paid in excess of the variable annuity account balances (are less than in 2016, 2017 and 2018)						1	1	1
Property and casualty insurance | Other lines
Insurance [Line Items]
Special charges to increase asbestos and environmental reserves		$ 18		$ 89		18	89	36
Favorable reserve development related to certain lines of business within subsidiaries in connection with a reinsurance to close agreement							$ 18
Special charges related to the exit of certain lines of business within subsidiaries								65
Property and casualty insurance | Other lines | Increased insurance loss reserves related to medical malpractice and general liability lines
Insurance [Line Items]
Special charges related to the exit of certain lines of business within subsidiaries					$ 57
Neon Capital Limited | Property and casualty insurance
Insurance [Line Items]
Favorable reserve development related to certain lines of business within subsidiaries in connection with a reinsurance to close agreement			42
Neon Capital Limited | Property and casualty insurance | Other lines
Insurance [Line Items]
Favorable reserve development related to certain lines of business within subsidiaries in connection with a reinsurance to close agreement			18
Special charges related to the exit of certain lines of business within subsidiaries								$ 65
Neon Capital Limited | Property and casualty insurance | Other lines | Reinsurance to close agreement
Insurance [Line Items]
Favorable reserve development related to certain lines of business within subsidiaries in connection with a reinsurance to close agreement			18
Neon Capital Limited | Neon Capital Limited | Current lines
Insurance [Line Items]
Favorable reserve development related to certain lines of business within subsidiaries in connection with a reinsurance to close agreement			$ 24
Great American Life Insurance Company | Life insurance
Insurance [Line Items]
Increased statutory surplus resulting from reinsurance treaty	$ 510					$ 510

XML

Insurance - Analysis of changes in the liability for losses and loss adjustment expenses, net of reinsurance (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018		Dec. 31, 2017	Dec. 31, 2016		Dec. 31, 2015
Analysis of changes in the liability for losses and loss adjustment expenses, net of reinsurance
Balance at beginning of period				$ 9,678				$ 8,563	$ 9,678		$ 8,563	$ 8,127
Less reinsurance recoverables, net of allowance	$ 2,942				$ 2,957				2,942		2,957	2,302		$ 2,201
Net liability at beginning of period				6,721				6,261	6,721		6,261	5,926
Liability for losses and loss adjustment expenses, period increase (decrease) [Abstract]
Provision for losses and LAE occurring in the current year									3,195		3,019	2,730
Net increase (decrease) in the provision for claims of prior years:
Provision for claims of prior years related to special A&E charges, Neon exited lines development and other	(61)	$ (31)	$ (44)	$ (56)	(66)	$ 52	$ (22)	$ (28)	(192)		(64)
Total losses and LAE incurred									3,003		2,955	2,762
Payments for losses and LAE of:
Current year									(963)		(942)	(841)
Prior years									(1,639)		(1,586)	(1,512)
Total payments									(2,602)		(2,528)	(2,353)
Reserves of businesses disposed									(319)	[1]	0	(40)	[1]
Foreign currency translation and other									(4)		33	(34)
Net liability at end of period	6,799				6,721				6,799		6,721	6,261
Add back reinsurance recoverables, net of allowance	2,942				2,957				2,942		2,957	2,302
Gross unpaid losses and LAE included in the balance sheet	$ 9,741				$ 9,678				9,741		9,678	8,563
Special A&E charges
Net increase (decrease) in the provision for claims of prior years:
Provision for claims of prior years related to special A&E charges, Neon exited lines development and other									18		89	36
Neon exited lines charge
Net increase (decrease) in the provision for claims of prior years:
Provision for claims of prior years related to special A&E charges, Neon exited lines development and other									0		(18)	57
Other
Net increase (decrease) in the provision for claims of prior years:
Provision for claims of prior years related to special A&E charges, Neon exited lines development and other									$ (210)		$ (135)	$ (61)

[1] Reflects the reinsurance to close transactions at Neon (discussed below).

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Insurance - Reconciliation of incurred and paid claims development information to the aggregate carrying amount of the liability for unpaid losses and LAE (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Total reserves, net of reinsurance	$ 6,799	$ 6,721	$ 6,261	$ 5,926
Add back reinsurance recoverables, net of allowance	(2,942)	(2,957)	(2,302)	(2,201)
Gross unpaid losses and LAE included in the balance sheet	9,741	$ 9,678	$ 8,563	$ 8,127
Property and casualty insurance
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Specialty unpaid losses and LAE, net of reinsurance	5,506
Other unpaid losses and LAE, net of reinsurance	1,293
Unallocated LAE	335
Total reserves, net of reinsurance	6,799
Add back reinsurance recoverables, net of allowance	2,942
Gross unpaid losses and LAE included in the balance sheet	9,741
Property and casualty insurance | Reserves for foreign operations:
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Other unpaid losses and LAE, net of reinsurance	268
Property and casualty insurance | A&E reserves
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Other unpaid losses and LAE, net of reinsurance	395
Property and casualty insurance | Other
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Other unpaid losses and LAE, net of reinsurance	30
Property and casualty insurance | Property and transportation
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Specialty unpaid losses and LAE, net of reinsurance	1,117
Property and casualty insurance | Specialty casualty
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Specialty unpaid losses and LAE, net of reinsurance	3,884
Property and casualty insurance | Specialty financial
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Specialty unpaid losses and LAE, net of reinsurance	225
Property and casualty insurance | Other specialty
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Specialty unpaid losses and LAE, net of reinsurance	280
Neon Capital Limited | Property and casualty insurance | Reserves for foreign operations:
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Other unpaid losses and LAE, net of reinsurance	$ 265

XML

Insurance - Short-duration insurance contracts, claims development (Details) - Property and casualty insurance $ in Millions		Dec. 31, 2018 USD ($) claim	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 19,905
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		14,960
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)		561
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)		5,506
Accident Year 2009
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		1,519	$ 1,529	$ 1,539	$ 1,543	$ 1,545	$ 1,552	$ 1,566	$ 1,596	$ 1,607	$ 1,624
Total IBNR Plus Expected Development on Reported Claims		$ 43
Cumulative Number of Reported Claims | claim		222,664
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 1,445	1,435	1,424	1,404	1,370	1,308	1,216	1,079	871	509
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[1]	95.10%
Accident Year 2010
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 1,676	1,690	1,698	1,698	1,710	1,690	1,705	1,710	1,724
Total IBNR Plus Expected Development on Reported Claims		$ 54
Cumulative Number of Reported Claims | claim		216,568
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 1,595	1,580	1,562	1,536	1,485	1,387	1,220	1,005	576
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[1]	95.20%
Accident Year 2011
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 1,843	1,859	1,866	1,861	1,871	1,849	1,848	1,840
Total IBNR Plus Expected Development on Reported Claims		$ 67
Cumulative Number of Reported Claims | claim		209,098
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 1,734	1,711	1,682	1,629	1,534	1,389	1,181	609
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[1]	94.10%
Accident Year 2012
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 1,906	1,941	1,955	1,947	1,946	1,952	1,970
Total IBNR Plus Expected Development on Reported Claims		$ 89
Cumulative Number of Reported Claims | claim		218,585
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 1,785	1,735	1,675	1,579	1,418	1,214	824
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[1]	93.70%
Accident Year 2013
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 1,982	2,000	1,996	2,000	2,011	2,036
Total IBNR Plus Expected Development on Reported Claims		$ 128
Cumulative Number of Reported Claims | claim		221,362
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 1,774	1,714	1,617	1,443	1,214	697
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[1]	89.50%
Accident Year 2014
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 2,004	2,038	2,040	2,050	2,083
Total IBNR Plus Expected Development on Reported Claims		$ 186
Cumulative Number of Reported Claims | claim		220,164
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 1,705	1,588	1,422	1,174	594
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[1]	85.10%
Accident Year 2015
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 2,038	2,041	2,047	2,114
Total IBNR Plus Expected Development on Reported Claims		$ 245
Cumulative Number of Reported Claims | claim		227,435
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 1,592	1,404	1,129	619
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[1]	78.10%
Accident Year 2016
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 2,082	2,083	2,117
Total IBNR Plus Expected Development on Reported Claims		$ 432
Cumulative Number of Reported Claims | claim		220,481
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 1,350	1,099	577
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[1]	64.80%
Accident Year 2017
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 2,348	2,375
Total IBNR Plus Expected Development on Reported Claims		$ 737
Cumulative Number of Reported Claims | claim		240,542
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 1,250	709
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[1]	53.20%
Accident Year 2018
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 2,507
Total IBNR Plus Expected Development on Reported Claims		$ 1,123
Cumulative Number of Reported Claims | claim		205,419
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 730
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[1]	29.10%
Excludes short-duration insurance contracts detail for accident years not separately presented
Claims Development [Line Items]
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)		$ 4,945
Property and transportation
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		7,957
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		6,863
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)		23
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)		1,117
Property and transportation | Accident Year 2009
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		490	491	491	491	494	494	498	505	487	503
Total IBNR Plus Expected Development on Reported Claims		$ 2
Cumulative Number of Reported Claims | claim		138,248
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 485	484	481	480	476	462	440	397	333	219
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[2]	99.00%
Property and transportation | Accident Year 2010
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 657	659	661	657	656	654	646	640	680
Total IBNR Plus Expected Development on Reported Claims		$ 3
Cumulative Number of Reported Claims | claim		138,235
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 650	648	643	638	627	597	536	487	316
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[2]	98.90%
Property and transportation | Accident Year 2011
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 850	853	856	844	833	819	803	816
Total IBNR Plus Expected Development on Reported Claims		$ 6
Cumulative Number of Reported Claims | claim		139,345
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 839	836	828	810	777	732	670	367
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[2]	98.70%
Property and transportation | Accident Year 2012
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 897	900	905	892	880	866	875
Total IBNR Plus Expected Development on Reported Claims		$ 13
Cumulative Number of Reported Claims | claim		145,636
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 892	866	852	826	780	715	574
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[2]	99.40%
Property and transportation | Accident Year 2013
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 890	890	890	884	881	894
Total IBNR Plus Expected Development on Reported Claims		$ 18
Cumulative Number of Reported Claims | claim		141,293
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 859	843	814	769	710	440
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[2]	96.50%
Property and transportation | Accident Year 2014
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 831	834	831	842	856
Total IBNR Plus Expected Development on Reported Claims		$ 25
Cumulative Number of Reported Claims | claim		136,259
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 784	756	702	638	332
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[2]	94.30%
Property and transportation | Accident Year 2015
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 789	789	794	831
Total IBNR Plus Expected Development on Reported Claims		$ 36
Cumulative Number of Reported Claims | claim		134,484
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 717	675	587	361
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[2]	90.90%
Property and transportation | Accident Year 2016
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 733	730	762
Total IBNR Plus Expected Development on Reported Claims		$ 74
Cumulative Number of Reported Claims | claim		122,623
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 590	528	296
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[2]	80.50%
Property and transportation | Accident Year 2017
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 868	904
Total IBNR Plus Expected Development on Reported Claims		$ 128
Cumulative Number of Reported Claims | claim		140,963
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 648	383
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[2]	74.70%
Property and transportation | Accident Year 2018
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 952
Total IBNR Plus Expected Development on Reported Claims		$ 277
Cumulative Number of Reported Claims | claim		119,817
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 399
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[2]	41.90%
Property and transportation | Excludes short-duration insurance contracts detail for accident years not separately presented
Claims Development [Line Items]
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)		$ 1,094
Specialty casualty
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		9,776
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		6,369
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)		477
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)		3,884
Specialty casualty | Accident Year 2009
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		811	820	824	829	828	833	844	864	887	888
Total IBNR Plus Expected Development on Reported Claims		$ 34
Cumulative Number of Reported Claims | claim		56,985
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 748	740	731	715	691	653	591	510	381	170
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[3]	92.20%
Specialty casualty | Accident Year 2010
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 853	864	867	868	879	865	887	886	870
Total IBNR Plus Expected Development on Reported Claims		$ 47
Cumulative Number of Reported Claims | claim		56,411
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 782	770	756	735	699	644	559	411	191
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[3]	91.70%
Specialty casualty | Accident Year 2011
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 811	819	822	827	842	833	845	847
Total IBNR Plus Expected Development on Reported Claims		$ 52
Cumulative Number of Reported Claims | claim		53,385
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 725	707	687	655	606	517	380	172
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[3]	89.40%
Specialty casualty | Accident Year 2012
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 838	867	872	876	876	883	890
Total IBNR Plus Expected Development on Reported Claims		$ 64
Cumulative Number of Reported Claims | claim		51,885
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 735	713	674	611	508	378	171
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[3]	87.70%
Specialty casualty | Accident Year 2013
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 913	933	928	933	938	956
Total IBNR Plus Expected Development on Reported Claims		$ 99
Cumulative Number of Reported Claims | claim		51,620
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 754	717	656	545	388	180
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[3]	82.60%
Specialty casualty | Accident Year 2014
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 966	992	994	994	1,023
Total IBNR Plus Expected Development on Reported Claims		$ 139
Cumulative Number of Reported Claims | claim		54,494
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 741	668	565	406	187
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[3]	76.70%
Specialty casualty | Accident Year 2015
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 1,030	1,031	1,033	1,068
Total IBNR Plus Expected Development on Reported Claims		$ 185
Cumulative Number of Reported Claims | claim		55,468
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 692	569	406	176
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[3]	67.20%
Specialty casualty | Accident Year 2016
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 1,097	1,108	1,115
Total IBNR Plus Expected Development on Reported Claims		$ 313
Cumulative Number of Reported Claims | claim		53,038
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 571	411	184
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[3]	52.10%
Specialty casualty | Accident Year 2017
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 1,200	1,196
Total IBNR Plus Expected Development on Reported Claims		$ 539
Cumulative Number of Reported Claims | claim		52,658
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 414	196
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[3]	34.50%
Specialty casualty | Accident Year 2018
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 1,257
Total IBNR Plus Expected Development on Reported Claims		$ 705
Cumulative Number of Reported Claims | claim		48,996
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 207
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[3]	16.50%
Specialty casualty | Excludes short-duration insurance contracts detail for accident years not separately presented
Claims Development [Line Items]
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)		$ 3,407
Specialty financial
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		1,623
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		1,397
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)		(1)
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)		225
Specialty financial | Accident Year 2009
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		186	185	186	187	186	188	184	186	192	192
Total IBNR Plus Expected Development on Reported Claims		$ 1
Cumulative Number of Reported Claims | claim		27,431
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 185	186	186	185	181	171	166	157	145	112
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[4]	99.50%
Specialty financial | Accident Year 2010
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 126	127	130	133	135	132	132	145	138
Total IBNR Plus Expected Development on Reported Claims		$ 1
Cumulative Number of Reported Claims | claim		21,922
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 126	126	128	130	132	122	104	93	61
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[4]	100.00%
Specialty financial | Accident Year 2011
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 139	143	144	147	153	155	157	138
Total IBNR Plus Expected Development on Reported Claims		$ 6
Cumulative Number of Reported Claims | claim		16,368
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 132	131	131	130	123	115	111	58
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[4]	95.00%
Specialty financial | Accident Year 2012
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 132	135	137	139	151	163	163
Total IBNR Plus Expected Development on Reported Claims		$ 6
Cumulative Number of Reported Claims | claim		21,064
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 128	126	121	117	109	104	71
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[4]	97.00%
Specialty financial | Accident Year 2013
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 126	127	131	137	145	140
Total IBNR Plus Expected Development on Reported Claims		$ 9
Cumulative Number of Reported Claims | claim		28,449
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 117	117	113	107	100	70
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[4]	92.90%
Specialty financial | Accident Year 2014
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 147	153	156	157	146
Total IBNR Plus Expected Development on Reported Claims		$ 9
Cumulative Number of Reported Claims | claim		29,411
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 137	128	125	109	62
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[4]	93.20%
Specialty financial | Accident Year 2015
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 153	158	160	156
Total IBNR Plus Expected Development on Reported Claims		$ 16
Cumulative Number of Reported Claims | claim		37,483
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 133	129	110	72
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[4]	86.90%
Specialty financial | Accident Year 2016
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 187	184	179
Total IBNR Plus Expected Development on Reported Claims		$ 24
Cumulative Number of Reported Claims | claim		44,820
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 158	141	88
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[4]	84.50%
Specialty financial | Accident Year 2017
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 215	212
Total IBNR Plus Expected Development on Reported Claims		$ 34
Cumulative Number of Reported Claims | claim		46,921
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 169	120
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[4]	78.60%
Specialty financial | Accident Year 2018
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 212
Total IBNR Plus Expected Development on Reported Claims		$ 79
Cumulative Number of Reported Claims | claim		36,606
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 112
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[4]	52.80%
Specialty financial | Excludes short-duration insurance contracts detail for accident years not separately presented
Claims Development [Line Items]
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)		$ 226
Other specialty
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		549
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		331
Unpaid losses and LAE — 11th year and prior (excluding unallocated LAE)		62
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)		280
Other specialty | Accident Year 2009
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		32	33	38	36	37	37	40	41	41	41
Total IBNR Plus Expected Development on Reported Claims		$ 6
Cumulative Number of Reported Claims | claim	[5]	0
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 27	25	26	24	22	22	19	15	12	$ 8
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[6]	84.40%
Other specialty | Accident Year 2010
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 40	40	40	40	40	39	40	39	36
Total IBNR Plus Expected Development on Reported Claims		$ 3
Cumulative Number of Reported Claims | claim	[5]	0
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 37	36	35	33	27	24	21	14	$ 8
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[6]	92.50%
Other specialty | Accident Year 2011
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 43	44	44	43	43	42	43	39
Total IBNR Plus Expected Development on Reported Claims		$ 3
Cumulative Number of Reported Claims | claim	[5]	0
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 38	37	36	34	28	25	20	$ 12
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[6]	88.40%
Other specialty | Accident Year 2012
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 39	39	41	40	39	40	42
Total IBNR Plus Expected Development on Reported Claims		$ 6
Cumulative Number of Reported Claims | claim	[5]	0
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 30	30	28	25	21	17	$ 8
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[6]	76.90%
Other specialty | Accident Year 2013
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 53	50	47	46	47	46
Total IBNR Plus Expected Development on Reported Claims		$ 2
Cumulative Number of Reported Claims | claim	[5]	0
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 44	37	34	22	16	$ 7
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[6]	83.00%
Other specialty | Accident Year 2014
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 60	59	59	57	58
Total IBNR Plus Expected Development on Reported Claims		$ 13
Cumulative Number of Reported Claims | claim	[5]	0
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 43	36	30	21	$ 13
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[6]	71.70%
Other specialty | Accident Year 2015
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 66	63	60	59
Total IBNR Plus Expected Development on Reported Claims		$ 8
Cumulative Number of Reported Claims | claim	[5]	0
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 50	31	26	$ 10
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[6]	75.80%
Other specialty | Accident Year 2016
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 65	61	61
Total IBNR Plus Expected Development on Reported Claims		$ 21
Cumulative Number of Reported Claims | claim	[5]	0
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 31	19	$ 9
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[6]	47.70%
Other specialty | Accident Year 2017
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 65	63
Total IBNR Plus Expected Development on Reported Claims		$ 36
Cumulative Number of Reported Claims | claim	[5]	0
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 19	$ 10
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[6]	29.20%
Other specialty | Accident Year 2018
Claims Development [Line Items]
Incurred Claims and Allocated LAE, Net of Reinsurance		$ 86
Total IBNR Plus Expected Development on Reported Claims		$ 62
Cumulative Number of Reported Claims | claim	[5]	0
Cumulative Paid Claims and Allocated LAE, Net of Reinsurance		$ 12
Cumulative Percentage Paid of Incurred Claims and Allocated LAE, Net of Reinsurance	[6]	14.00%
Other specialty | Excludes short-duration insurance contracts detail for accident years not separately presented
Claims Development [Line Items]
Unpaid losses and LAE, net of reinsurance (excluding unallocated LAE)		$ 218

[1] Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

[2] Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

[3] Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

[4] Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

[5] The amounts shown in Other specialty represent business assumed by AFG’s internal reinsurance program from the operations that make up AFG’s other Specialty property and casualty insurance sub-segments. Accordingly, the liability for incurred claims and allocated LAE represents additional reserves held on claims counted in the tables provided for the other sub-segments (above).

[6] Represents the cumulative percentage paid of incurred claims and allocated LAE (net of reinsurance, as estimated at December 31, 2018).

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Insurance - Short-duration insurance contracts, historical claims duration (Details) - Property and casualty insurance	Dec. 31, 2018
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items]
Year 1	32.60%
Year 2	25.50%
Year 3	12.20%
Year 4	8.80%
Year 5	5.50%
Year 6	3.20%
Year 7	2.00%
Year 8	1.20%
Year 9	0.80%
Year 10	0.70%
Year 1, Cumulative	32.60%
Year 2, Cumulative	58.10%
Year 3, Cumulative	70.30%
Year 4, Cumulative	79.10%
Year 5, Cumulative	84.60%
Year 6, Cumulative	87.80%
Year 7, Cumulative	89.80%
Year 8, Cumulative	91.00%
Year 9, Cumulative	91.80%
Year 10, Cumulative	92.50%
Property and transportation
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items]
Year 1	46.20%
Year 2	28.70%
Year 3	8.60%
Year 4	6.50%
Year 5	3.70%
Year 6	2.00%
Year 7	1.40%
Year 8	0.40%
Year 9	0.50%
Year 10	0.20%
Year 1, Cumulative	46.20%
Year 2, Cumulative	74.90%
Year 3, Cumulative	83.50%
Year 4, Cumulative	90.00%
Year 5, Cumulative	93.70%
Year 6, Cumulative	95.70%
Year 7, Cumulative	97.10%
Year 8, Cumulative	97.50%
Year 9, Cumulative	98.00%
Year 10, Cumulative	98.20%
Specialty casualty
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items]
Year 1	19.10%
Year 2	23.20%
Year 3	16.20%
Year 4	11.10%
Year 5	7.00%
Year 6	4.30%
Year 7	2.60%
Year 8	1.90%
Year 9	1.30%
Year 10	1.00%
Year 1, Cumulative	19.10%
Year 2, Cumulative	42.30%
Year 3, Cumulative	58.50%
Year 4, Cumulative	69.60%
Year 5, Cumulative	76.60%
Year 6, Cumulative	80.90%
Year 7, Cumulative	83.50%
Year 8, Cumulative	85.40%
Year 9, Cumulative	86.70%
Year 10, Cumulative	87.70%
Specialty financial
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items]
Year 1	50.50%
Year 2	26.40%
Year 3	7.50%
Year 4	5.80%
Year 5	4.70%
Year 6	1.70%
Year 7	0.50%
Year 8	(0.10%)
Year 9	0.00%
Year 10	(0.50%)
Year 1, Cumulative	50.50%
Year 2, Cumulative	76.90%
Year 3, Cumulative	84.40%
Year 4, Cumulative	90.20%
Year 5, Cumulative	94.90%
Year 6, Cumulative	96.60%
Year 7, Cumulative	97.10%
Year 8, Cumulative	97.00%
Year 9, Cumulative	97.00%
Year 10, Cumulative	96.50%
Other specialty
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items]
Year 1	18.70%
Year 2	17.00%
Year 3	12.60%
Year 4	14.10%
Year 5	9.30%
Year 6	7.60%
Year 7	3.40%
Year 8	3.70%
Year 9	(0.30%)
Year 10	6.30%
Year 1, Cumulative	18.70%
Year 2, Cumulative	35.70%
Year 3, Cumulative	48.30%
Year 4, Cumulative	62.40%
Year 5, Cumulative	71.70%
Year 6, Cumulative	79.30%
Year 7, Cumulative	82.70%
Year 8, Cumulative	86.40%
Year 9, Cumulative	86.10%
Year 10, Cumulative	92.40%

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Insurance - Net earnings and capital and surplus on a statutory basis for the insurance subsidiaries (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property and casualty companies
Statutory information
Net Earnings	$ 546	$ 484	$ 461
Capital and Surplus	2,867	2,729
Life insurance companies
Statutory information
Net Earnings	802	286	$ 167
Capital and Surplus	$ 2,701	$ 2,132

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Insurance - Reinsurance information table including assumed, ceded, and recoveries (Details) - Property and casualty insurance - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Effects of Reinsurance [Line Items]
Direct premiums written	$ 6,626	$ 6,310	$ 5,858
Reinsurance assumed	214	192	123
Reinsurance ceded	(1,817)	(1,751)	(1,595)
Net written premiums	5,023	4,751	4,386
Direct premiums earned	6,472	6,112	5,745
Reinsurance assumed	204	157	118
Reinsurance ceded	(1,811)	(1,690)	(1,535)
Net earned premiums	4,865	4,579	4,328
Reinsurance recoveries	$ 1,249	$ 1,379	$ 810

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Insurance - Liabilities for excess benefits expected to be paid on future deaths and annuitizations, guaranteed withdrawal benefits and accrued persistency and premium bonuses (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Insurance [Abstract]
Expected death and annuitization	$ 229	$ 228
Guaranteed withdrawal benefits	472	358
Accrued persistency and premium bonuses	$ 1	$ 3

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Additional Information - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance for reinsurance recoverables [Line Items]
Total rental expense	$ 70	$ 69	$ 67
Operating lease future minimum payments due in next year	65
Operating lease future minimum payments due in year two	57
Operating lease future minimum payments due in year three	50
Operating lease future minimum payments due in year four	40
Operating lease future minimum payments due in year five	35
Operating lease future minimum payments due after year five	79
Commitments to fund limited partnerships	949
Retirement and employee savings plan expense	37	45	43
Allowance for reinsurance recoverables
Allowance for reinsurance recoverables [Line Items]
Aggregate allowance for losses on reinsurance recoverables	18	20
Net expense reduction against the allowance for losses on reinsurance recoverables	(2)
Reinsurance recoverable write-offs	$ 2
Maximum | Allowance for reinsurance recoverables
Allowance for reinsurance recoverables [Line Items]
Net expense reduction against the allowance for losses on reinsurance recoverables		$ (1)	$ (1)

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Condensed Financial Information of Parent Company - Condensed Balance Sheet (Details) - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Assets:
Cash and cash equivalents		$ 1,515	$ 2,338	$ 2,107	$ 1,220
Other investments		267	312
Other assets		1,529	1,504
Total assets		63,456	60,658	55,072
Liabilities and Equity:
Long-term debt		1,302	1,301
Other liabilities		1,774	1,887
Shareholders’ equity		4,970	5,330
Total liabilities and equity		63,456	60,658
AFG
Assets:
Cash and cash equivalents		158	299	$ 197	$ 189
Investment in securities		65	70
Investment in subsidiaries	[1]	6,155	6,310
Other investments		2	2
Other assets		68	141
Total assets		6,448	6,822
Liabilities and Equity:
Long-term debt		1,302	1,301
Other liabilities		176	191
Shareholders’ equity		4,970	5,330
Total liabilities and equity		$ 6,448	$ 6,822

[1] Investment in subsidiaries includes intercompany receivables and payables.

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Condensed Financial Information of Parent Company - Condensed Statement of Earnings (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues:
Total revenues	$ 1,690	$ 2,008	$ 1,833	$ 1,619	$ 1,808	$ 1,835	$ 1,646	$ 1,576	$ 7,150	$ 6,865	$ 6,498
Costs and Expenses:
Interest charges on other borrowings									62	85	77
Other expenses									353	422	353
Total costs and expenses									6,511	6,141	5,711
Earnings before income taxes									639	724	787
Provision for income taxes									122	247	119
Net Earnings Attributable to Shareholders	$ (29)	$ 204	$ 210	$ 145	166	$ 11	$ 145	$ 153	530	475	649
AFG
Revenues:
Dividends from subsidiaries									261	681	643
Equity in undistributed earnings of subsidiaries									529	264	286
Investment and other income									2	13	7
Total revenues									792	958	936
Costs and Expenses:
Interest charges on intercompany borrowings									8	9	9
Interest charges on other borrowings									62	85	77
Other expenses									70	142	82
Total costs and expenses									140	236	168
Earnings before income taxes									652	722	768
Provision for income taxes					$ (56)				122	247	119
Net Earnings Attributable to Shareholders									$ 530	$ 475	$ 649

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Condensed Financial Information of Parent Company - Condensed Statement of Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Other Comprehensive Income [Abstract]
Net earnings (losses) attributable to shareholders	$ (29)	$ 204	$ 210	$ 145	$ 166	$ 11	$ 145	$ 153	$ 530	$ 475	$ 649
Comprehensive income (loss) attributable to shareholders									(14)	771	711
AFG
Statement of Other Comprehensive Income [Abstract]
Net earnings (losses) attributable to shareholders									530	475	649
Other comprehensive income (loss), net of tax									(544)	296	62
Comprehensive income (loss) attributable to shareholders									$ (14)	$ 771	$ 711

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Condensed Financial Information of Parent Company - Condensed Statement of Cash Flows (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Activities:
Net earnings (losses) attributable to shareholders	$ (29)	$ 204	$ 210	$ 145	$ 166	$ 11	$ 145	$ 153	$ 530	$ 475	$ 649
Adjustments:
Net cash provided by operating activities									2,083	1,804	1,150
Investing Activities:
Payments for (proceeds from) other investing activities									30	2	(83)
Net cash used in investing activities									(5,350)	(3,292)	(2,981)
Financing Activities:
Additional long-term borrowings									0	712	302
Reductions of long-term debt									0	(745)	(18)
Issuances of Common Stock									33	37	35
Repurchases of Common Stock									(6)	0	(133)
Cash dividends paid on Common Stock									(394)	(417)	(185)
Proceeds from (payments for) other financing activities									0	(4)	(13)
Net cash provided by (used in) financing activities									2,444	1,719	2,718
Net Change in Cash and Cash Equivalents									(823)	231	887
Cash and cash equivalents at beginning of year				2,338				2,107	2,338	2,107	1,220
Cash and cash equivalents at end of year	1,515				2,338				1,515	2,338	2,107
AFG
Operating Activities:
Net earnings (losses) attributable to shareholders									530	475	649
Adjustments:
Equity in net earnings of subsidiaries									(637)	(575)	(638)
Dividends from subsidiaries									238	580	611
Other operating activities, net									84	98	(67)
Net cash provided by operating activities									215	578	555
Investing Activities:
Capital contributions to subsidiaries									(11)	(93)	(560)
Returns of capital from subsidiaries									23	30	0
Purchases of investments, property and equipment									(5)	(2)	(1)
Proceeds from maturities and redemptions of investments									3	2	1
Net cash used in investing activities									10	(63)	(560)
Financing Activities:
Additional long-term borrowings									0	712	296
Reductions of long-term debt									0	(745)	0
Issuances of Common Stock									34	37	35
Repurchases of Common Stock									(6)	0	(133)
Cash dividends paid on Common Stock									(394)	(417)	(185)
Net cash provided by (used in) financing activities									(366)	(413)	13
Net Change in Cash and Cash Equivalents									(141)	102	8
Cash and cash equivalents at beginning of year				$ 299				$ 197	299	197	189
Cash and cash equivalents at end of year	$ 158				$ 299				$ 158	$ 299	$ 197

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Supplementary Insurance Information - Table (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
Deferred policy acquisition costs	$ 1,682	$ 1,216	$ 1,239
Reserves for future policy benefits, claims and unpaid losses and LAE	46,992	43,652	39,161
Unearned premiums	2,595	2,410	2,171
Net earned premiums	4,889	4,601	4,352
Net investment income	2,094	1,831	1,696
Benefits, claims, losses and settlement expenses	4,041	3,873	3,595
Amortization of deferred policy acquisition costs	860	690	673
Other operating expenses	1,610	1,578	1,443
Net written premiums (excluding life)	5,026	4,754	4,389
Property and casualty insurance
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
Deferred policy acquisition costs	299	270	238
Reserves for future policy benefits, claims and unpaid losses and LAE	9,741	9,678	8,563
Unearned premiums	2,595	2,410	2,171
Net earned premiums	4,865	4,579	4,328
Net investment income	438	362	350
Benefits, claims, losses and settlement expenses	3,003	2,955	2,762
Amortization of deferred policy acquisition costs	644	556	520
Other operating expenses	957	867	870
Net written premiums (excluding life)	5,023	4,751	4,386
Annuity
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
Deferred policy acquisition costs	1,360	920	981
Reserves for future policy benefits, claims and unpaid losses and LAE	36,616	33,316	29,907
Net investment income	1,638	1,458	1,356
Benefits, claims, losses and settlement expenses	998	892	800
Amortization of deferred policy acquisition costs	212	130	149
Other operating expenses	174	159	142
Other
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
Deferred policy acquisition costs	23	26	20
Reserves for future policy benefits, claims and unpaid losses and LAE	635	658	691
Net earned premiums	24	22	24
Net investment income	18	11	(10)
Benefits, claims, losses and settlement expenses	40	26	33
Amortization of deferred policy acquisition costs	4	4	4
Other operating expenses	479	552	431
Net written premiums (excluding life)	$ 3	$ 3	$ 3