10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2020

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                      to                     

Commission File Number: 001-07434

Aflac Incorporated

_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

(Exact name of registrant as specified in its charter)

Georgia			58-1167100
(State or other jurisdiction of incorporation or organization)			(I.R.S. Employer Identification No.)
1932 Wynnton Road	Columbus,	Georgia	31999
(Address of principal executive offices)			(ZIP Code)

706. 323.3431

(Registrant's telephone number, including area code)

(Former name, former address and former fiscal year, if changed since last report)

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $.10 par value per share	AFL	New York Stock Exchange

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 (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  þ  Yes  ¨  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 (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).            þ  Yes  ¨  No

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 the 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 Exchange Act).  ☐  Yes  þ  No

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date. 702,445,245 shares of the issuer's common stock were outstanding as of October 19, 2020.

Aflac Incorporated and Subsidiaries

Quarterly Report on Form 10-Q

For the Quarter Ended September 30, 2020

Table of Contents

PART I.		FINANCIAL INFORMATION:	Page
	Item 1.	Financial Statements (Unaudited)
		Consolidated Statements of Earnings   Three Months Ended September 30, 2020 and 2019   Nine Months Ended September 30, 2020 and 2019	1
		Consolidated Statements of Comprehensive Income (Loss)    Three Months Ended September 30, 2020 and 2019   Nine Months Ended September 30, 2020 and 2019	2
		Consolidated Balance Sheets   September 30, 2020, and December 31, 2019	3
		Consolidated Statements of Shareholders' Equity   Three Months Ended March 31, 2020 and 2019   Three Months Ended June 30, 2020 and 2019   Three Months Ended September 30, 2020 and 2019	4
		Consolidated Statements of Cash Flows   Nine Months Ended September 30, 2020 and 2019	8
		Notes to the Consolidated Financial Statements	9
	Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	70
	Item 3.	Quantitative and Qualitative Disclosures about Market Risk	107
	Item 4.	Controls and Procedures	108
PART II.		OTHER INFORMATION:
	Item 1.	Legal Proceedings	109
	Item 1A.	Risk Factors	109
	Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	110
	Item 6.	Exhibits	111
Glossary of Selected Terms			112

Items other than those listed above are omitted because they are not required or are not applicable.

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements.

Aflac Incorporated and Subsidiaries

Consolidated Statements of Earnings

	Three Months Ended September 30,						Nine Months Ended September 30,
(In millions, except for share and per-share amounts - Unaudited)	2020			2019			2020				2019
Revenues:
Net premiums, principally supplemental health insurance		$	4,623		$	4,736		$	13,969			$	14,109
Net investment income		896			936			2,669				2,692
Net investment gains (losses)		108			(153)			(525)				(147)
Other income (loss)		38			17			121				50
Total revenues		5,665			5,536			16,234				16,704
Benefits and expenses:
Benefits and claims, net		2,985			3,027			8,822				8,958
Acquisition and operating expenses:
Amortization of deferred policy acquisition costs		292			317			914				967
Insurance commissions		325			330			993				990
Insurance and other expenses		847			769			2,382		(1)		2,230
Interest expense		63			57			181				171
Total acquisition and operating expenses		1,527			1,473			4,470				4,358
Total benefits and expenses		4,512			4,500			13,292				13,316
Earnings before income taxes		1,153			1,036			2,942				3,388
Income taxes		(1,303)			259			(884)				865
Net earnings		$	2,456		$	777		$	3,826			$	2,523
Net earnings per share:
Basic		$	3.45		$	1.05		$	5.33			$	3.38
Diluted		3.44			1.04			5.31				3.37
Weighted-average outstanding common shares used in computing earnings per share (In thousands):
Basic		711,698			739,946			717,962				745,465
Diluted		713,793			743,842			720,333				749,452
Cash dividends per share		$	.28		$	.27		$	.84			$	.81

(1) Includes expense of $15 for the early extinguishment of debt

See the accompanying Notes to the Consolidated Financial Statements.

1

Aflac Incorporated and Subsidiaries

Consolidated Statements of Comprehensive Income (Loss)

	Three Months Ended September 30,						Nine Months Ended September 30,
(In millions - Unaudited)	2020			2019			2020			2019
Net earnings		$	2,456		$	777		$	3,826		$	2,523
Other comprehensive income (loss) before income taxes:
Unrealized foreign currency translation gains (losses) during period		172			(22)			329			393
Unrealized gains (losses) on fixed maturity securities:
Unrealized holding gains (losses) on fixed maturity securities during period		1,420			1,185			26			6,427
Reclassification adjustment for (gains) losses on fixed maturity securities included in net earnings		(13)			41			132			(1)
Unrealized gains (losses) on derivatives during period		2			(8)			(3)			(12)
Pension liability adjustment during period		(1)			1			(1)			5
Total other comprehensive income (loss) before income taxes		1,580			1,197			483			6,812
Income tax expense (benefit) related to items of other comprehensive income (loss)		413			310			29			1,712
Other comprehensive income (loss), net of income taxes		1,167			887			454			5,100
Total comprehensive income (loss)		$	3,623		$	1,664		$	4,280		$	7,623

See the accompanying Notes to the Consolidated Financial Statements.

2

Aflac Incorporated and Subsidiaries

Consolidated Balance Sheets

(In millions, except for share and per-share amounts)	September 30, 2020 (Unaudited)			December 31, 2019
Assets:
Investments and cash:
Fixed maturity securities available for sale, at fair value, (allowance for credit losses of $38 in   2020, amortized cost $86,659 in 2020 and amortized cost $76,063 in 2019)		$	98,844		$	86,950
Fixed maturity securities available for sale - consolidated variable interest entities, at fair value   (amortized cost $3,279 in 2020 and amortized cost of $3,308 in 2019)		4,284			4,312
Fixed maturity securities held to maturity, at amortized cost, net of allowance   for credit losses of $9 in 2020 (fair value $29,807 in 2020 and $37,594 in 2019)		23,937			30,085
Equity securities, at fair value		775			802
Commercial mortgage and other loans, net of allowance for credit losses of $165 in 2020   (includes $9,245 in 2020 and $7,956 in 2019 of consolidated variable interest entities)		10,822			9,569
Other investments   (includes $658 in 2020 and $494 in 2019 of consolidated variable interest entities)		1,904			1,477
Cash and cash equivalents		5,563			4,896
Total investments and cash		146,129			138,091
Receivables		824			828
Accrued investment income		737			772
Deferred policy acquisition costs		10,319			10,128
Property and equipment, at cost less accumulated depreciation		584			581
Other		2,362			2,368
Total assets		$	160,955		$	152,768
Liabilities and shareholders’ equity:
Liabilities:
Policy liabilities:
Future policy benefits		$	95,240		$	90,335
Unpaid policy claims		4,976			4,659
Unearned premiums		3,729			4,243
Other policyholders’ funds		7,642			7,317
Total policy liabilities		111,587			106,554
Income taxes		4,278			5,370
Payables for return of cash collateral on loaned securities		1,495			1,876
Notes payable and lease obligations		7,825			6,569
Other		3,291			3,440
Total liabilities		128,476			123,809
Commitments and contingent liabilities (Note 13)
Shareholders’ equity:
Common stock of $.10 par value. In thousands: authorized 1,900,000    shares in 2020 and 2019; issued 1,350,855 shares in 2020 and 1,349,309 shares in 2019		135			135
Additional paid-in capital		2,383			2,313
Retained earnings		37,460			34,291
Accumulated other comprehensive income (loss):
Unrealized foreign currency translation gains (losses)		(1,290)			(1,623)
Unrealized gains (losses) on fixed maturity securities		9,520			8,548
Unrealized gains (losses) on derivatives		(35)			(33)
Pension liability adjustment		(278)			(277)
Treasury stock, at average cost		(15,416)			(14,395)
Total shareholders’ equity		32,479			28,959
Total liabilities and shareholders’ equity		$	160,955		$	152,768

See the accompanying Notes to the Consolidated Financial Statements.

3

Aflac Incorporated and Subsidiaries

Consolidated Statements of Shareholders’ Equity

(In millions, except for per share amounts - Unaudited)	Common Stock		Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Income (Loss)		Treasury Stock		Total Shareholders' Equity
Balance at December 31, 2019	$	135	$	2,313	$	34,291	$	6,615	$	(14,395)	$	28,959
Cumulative effect of change in accounting    principle, Accounting Standards Update    (ASU) 2016-13, net of tax (1)	0		0		(56)		0		0		(56)
Cumulative effect of change in accounting    principle, ASU 2019-04, net of tax (1)	0		0		0		848		0		848
Balance at January 1, 2020	$	135	$	2,313	$	34,235	$	7,463	$	(14,395)	$	29,751
Net earnings	0		0		566		0		0		566
Unrealized foreign currency translation gains (losses) during period, net of income tax	0		0		0		80		0		80
Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments	0		0		0		(3,353)		0		(3,353)
Unrealized gains (losses) on derivatives during period, net of income taxes	0		0		0		(2)		0		(2)
Pension liability adjustment during period, net of income taxes	0		0		0		0		0		0
Dividends to shareholders   ($.28 per share)	0		0		(202)		0		0		(202)
Exercise of stock options	0		5		0		0		0		5
Share-based compensation	0		7		0		0		0		7
Purchases of treasury stock	0		0		0		0		(476)		(476)
Treasury stock reissued	0		9		0		0		17		26
Balance at March 31, 2020	$	135	$	2,334	$	34,599	$	4,188	$	(14,854)	$	26,402
Net earnings	0		0		805		0		0		805
Unrealized foreign currency translation gains (losses) during period, net of income tax	0		0		0		74		0		74
Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments	0		0		0		2,489		0		2,489
Unrealized gains (losses) on derivatives during period, net of income taxes	0		0		0		(1)		0		(1)
Pension liability adjustment during period, net of income taxes	0		0		0		0		0		0
Dividends to shareholders   ($.28 per share)	0		0		(200)		0		0		(200)
Exercise of stock options	0		1		0		0		0		1
Share-based compensation	0		16		0		0		0		16
Purchases of treasury stock	0		0		0		0		(189)		(189)
Treasury stock reissued	0		7		0		0		16		23
Balance at June 30, 2020	$	135	$	2,358	$	35,204	$	6,750	$	(15,027)	$	29,420

(1) See Note 1 of the Notes to the Consolidated Financial Statements for the adoption of accounting guidance on January 1, 2020.

See the accompanying Notes to the Consolidated Financial Statements

(continued)

4

Aflac Incorporated and Subsidiaries

Consolidated Statements of Shareholders’ Equity (continued)

(In millions, except for per share amounts - Unaudited)	Common Stock		Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Income (Loss)		Treasury Stock		Total Shareholders' Equity
Balance at June 30, 2020	$	135	$	2,358	$	35,204	$	6,750	$	(15,027)	$	29,420
Net earnings	0		0		2,456		0		0		2,456
Unrealized foreign currency translation gains (losses) during period, net of income tax	0		0		0		179		0		179
Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments	0		0		0		988		0		988
Unrealized gains (losses) on derivatives during period, net of income taxes	0		0		0		1		0		1
Pension liability adjustment during period, net of income taxes	0		0		0		(1)		0		(1)
Dividends to shareholders   ($.28 per share)	0		0		(200)		0		0		(200)
Exercise of stock options	0		2		0		0		0		2
Share-based compensation	0		16		0		0		0		16
Purchases of treasury stock	0		0		0		0		(400)		(400)
Treasury stock reissued	0		7		0		0		11		18
Balance at September 30, 2020	$	135	$	2,383	$	37,460	$	7,917	$	(15,416)	$	32,479

See the accompanying Notes to the Consolidated Financial Statements

(continued)

5

Aflac Incorporated and Subsidiaries

Consolidated Statements of Shareholders’ Equity (continued)

(In millions, except for per share amounts - Unaudited)	Common Stock		Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Income (Loss)		Treasury Stock		Total Shareholders' Equity
Balance at December 31, 2018	$	135	$	2,177	$	31,788	$	2,151	$	(12,789)	$	23,462
Net earnings	0		0		928		0		0		928
Unrealized foreign currency translation gains (losses) during period, net of income tax	0		0		0		(1)		0		(1)
Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments	0		0		0		2,327		0		2,327
Unrealized gains (losses) on derivatives during period, net of income taxes	0		0		0		(2)		0		(2)
Pension liability adjustment during period, net of income taxes	0		0		0		6		0		6
Dividends to shareholders   ($.27 per share)	0		0		(203)		0		0		(203)
Exercise of stock options	0		11		0		0		0		11
Share-based compensation	0		8		0		0		0		8
Purchases of treasury stock	0		0		0		0		(517)		(517)
Treasury stock reissued	0		12		0		0		18		30
Balance at March 31, 2019	$	135	$	2,208	$	32,513	$	4,481	$	(13,288)	$	26,049
Net earnings	0		0		817		0		0		817
Unrealized foreign currency translation gains (losses) during period, net of income tax	0		0		0		393		0		393
Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments	0		0		0		1,494		0		1,494
Unrealized gains (losses) on derivatives during period, net of income taxes	0		0		0		(1)		0		(1)
Pension liability adjustment during period, net of income taxes	0		0		0		(3)		0		(3)
Dividends to shareholders   ($.27 per share)	0		0		(200)		0		0		(200)
Exercise of stock options	0		12		0		0		0		12
Share-based compensation	0		15		0		0		0		15
Purchases of treasury stock	0		0		0		0		(358)		(358)
Treasury stock reissued	0		12		0		0		11		23
Balance at June 30, 2019	$	135	$	2,247	$	33,130	$	6,364	$	(13,635)	$	28,241

See the accompanying Notes to the Consolidated Financial Statements.

(continued)

6

Aflac Incorporated and Subsidiaries

Consolidated Statements of Shareholders’ Equity (continued)

(In millions, except for per share amounts - Unaudited)	Common Stock		Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Income (Loss)		Treasury Stock		Total Shareholders' Equity
Balance at June 30, 2019	$	135	$	2,247	$	33,130	$	6,364	$	(13,635)	$	28,241
Net earnings	0		0		777		0		0		777
Unrealized foreign currency translation gains (losses) during period, net of income tax	0		0		0		(24)		0		(24)
Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments	0		0		0		915		0		915
Unrealized gains (losses) on derivatives during period, net of income taxes	0		0		0		(6)		0		(6)
Pension liability adjustment during period, net of income taxes	0		0		0		2		0		2
Dividends to shareholders   ($.27 per share)	0		0		(197)		0		0		(197)
Exercise of stock options	0		3		0		0		0		3
Share-based compensation	0		15		0		0		0		15
Purchases of treasury stock	0		0		0		0		(311)		(311)
Treasury stock reissued	0		12		0		0		11		23
Balance at September 30, 2019	$	135	$	2,277	$	33,710	$	7,251	$	(13,935)	$	29,438

See the accompanying Notes to the Consolidated Financial Statements.

7

Aflac Incorporated and Subsidiaries

Consolidated Statements of Cash Flows

	Nine Months Ended September 30,
(In millions - Unaudited)	2020			2019
Cash flows from operating activities:
Net earnings		$	3,826		$	2,523
Adjustments to reconcile net earnings to net cash provided (used) by operating activities:
Change in receivables and advance premiums		12			(36)
Capitalization of deferred policy acquisition costs		(870)			(1,057)
Amortization of deferred policy acquisition costs		914			967
Increase in policy liabilities		1,601			1,659
Change in income tax liabilities		(1,509)			(85)
Net investment (gains) losses		525			147
Other, net		102			145
Net cash provided (used) by operating activities		4,601			4,263
Cash flows from investing activities:
Proceeds from investments sold or matured:
Available-for-sale fixed maturity securities		2,688			3,127
Equity securities		217			570
Held-to-maturity fixed maturity securities		3			437
Commercial mortgage and other loans		1,115			1,293
Costs of investments acquired:
Available-for-sale fixed maturity securities		(3,710)			(5,908)
Equity securities		(275)			(321)
Commercial mortgage and other loans		(2,554)			(2,634)
Other investments, net		(405)			(682)
Settlement of derivatives, net		15			13
Cash received (pledged or returned) as collateral, net		(420)			1,144
Other, net		(185)			15
Net cash provided (used) by investing activities		(3,511)			(2,946)
Cash flows from financing activities:
Purchases of treasury stock		(1,037)			(1,157)
Proceeds from borrowings		1,545			268
Principal payments under debt obligations		(350)			0
Dividends paid to shareholders		(580)			(579)
Change in investment-type contracts, net		(7)			0
Treasury stock reissued		27			38
Other, net		(29)			1
Net cash provided (used) by financing activities		(431)			(1,429)
Effect of exchange rate changes on cash and cash equivalents		8			(9)
Net change in cash and cash equivalents		667			(121)
Cash and cash equivalents, beginning of period		4,896			4,337
Cash and cash equivalents, end of period		$	5,563		$	4,216
Supplemental disclosures of cash flow information:
Income taxes paid		$	626		$	950
Interest paid		131			132
Noncash interest		47			38
Noncash financing activities:
Lease obligations		31			82
Treasury stock issued for:
Associate stock bonus		12			12
Shareholder dividend reinvestment		22			21
Share-based compensation grants		6			5

See the accompanying Notes to the Consolidated Financial Statements.

8

Aflac Incorporated and Subsidiaries

Notes to the Consolidated Financial Statements

(Interim period data – Unaudited)

1.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Description of Business

Aflac Incorporated (the Parent Company) and its subsidiaries (collectively, the Company) primarily sell supplemental health and life insurance in the United States (U.S.) and Japan. The Company’s operations consist of two reportable business segments: Aflac Japan and Aflac U.S. The Parent Company's primary insurance subsidiaries are Aflac Life Insurance Japan Ltd. (Aflac Japan) and American Family Life Assurance Company of Columbus (Aflac); Continental American Insurance Company (CAIC), branded as Aflac Group Insurance (AGI); American Family Life Assurance Company of New York (Aflac New York); Tier One Insurance Company (TOIC) and Argus Dental & Vision, Inc. (Argus), which provides a platform for Aflac Dental and Vision in the U.S. (collectively, Aflac U.S.). Aflac Japan's revenues, including net gains and losses on its investment portfolio, accounted for 68% and 69% of the Company's total revenues in the nine-month periods ended September 30, 2020 and 2019, respectively. The percentage of the Company's total assets attributable to Aflac Japan was 83% at September 30, 2020, compared with 84% at December 31, 2019.

Basis of Presentation

The Company prepares its financial statements in accordance with U.S. generally accepted accounting principles (U.S. GAAP). These principles are established primarily by the Financial Accounting Standards Board (FASB). In these Notes to the Consolidated Financial Statements, references to U.S. GAAP issued by the FASB are derived from the FASB Accounting Standards CodificationTM (ASC). The preparation of financial statements in conformity with U.S. GAAP requires the Company to make estimates based on currently available information when recording transactions resulting from business operations. The most significant items on the Company's balance sheet that involve a greater degree of accounting estimates and actuarial determinations subject to changes in the future are the valuation of investments and derivatives, deferred policy acquisition costs (DAC), liabilities for future policy benefits and unpaid policy claims, and income taxes. These accounting estimates and actuarial determinations are sensitive to market conditions, investment yields, mortality, morbidity, commission and other acquisition expenses, and terminations by policyholders. As additional information becomes available, or actual amounts are determinable, the recorded estimates will be revised and reflected in operating results. Although some variability is inherent in these estimates, the Company believes the amounts provided are adequate.

The unaudited consolidated financial statements include the accounts of the Parent Company, its subsidiaries and those entities required to be consolidated under applicable accounting standards. All material intercompany accounts and transactions have been eliminated.

In the opinion of management, the accompanying unaudited consolidated financial statements of the Company contain all adjustments, consisting of normal recurring accruals, which are necessary to fairly present the consolidated balance sheets as of September 30, 2020, and December 31, 2019, the consolidated statements of earnings and comprehensive income (loss) for the three-month and nine-month periods ended September 30, 2020 and 2019, the consolidated statement of shareholders' equity for the three-month periods ended March 31, 2020 and 2019, June 30, 2020 and 2019 and September 30, 2020 and 2019, and the consolidated statement of cash flows for the nine-month periods ended September 30, 2020 and 2019. Results of operations for interim periods are not necessarily indicative of results for the entire year. As a result, these financial statements should be read in conjunction with the financial statements and notes thereto included in the Company's annual report on Form 10-K for the year ended December 31, 2019 (2019 Annual Report).

COVID-19: On March 11, 2020, the World Health Organization declared the COVID-19 outbreak a global pandemic. The impact of COVID-19 on the Company continues to evolve, and its future effects remain uncertain. The Company continues to closely monitor the effects and risks of COVID-19 to assess its impact on economic conditions in Japan and the U.S. and on the Company's business, financial condition, results of operations, liquidity and capital position.

    Liquidity and Capital Resources

The Company entered the crisis having maintained capital ratios in Japan and the U.S. at a level designed to absorb a degree of market volatility. To further support liquidity and capital resources, the Parent Company, in

9

March 2020, issued four series of senior notes totaling ¥57.0 billion and, in April 2020, issued $1.0 billion in senior notes through public debt offerings under its U.S. shelf registration statement. The Company has available liquidity in its unsecured revolving credit facilities of $1.0 billion and ¥100.0 billion and currently has no borrowings under either of these facilities. In April 2020, Aflac increased its internal limit for Federal Home Loan Bank of Atlanta (FHLB) borrowings to $800 million, $300 million of which the Company has designated to be used for short-term liquidity needs and subject to qualified collateral availability and other conditions. The Company continues to evaluate other sources of liquidity including reinvestment cash flows and selling investments.

    Loan Modifications

On March 27, 2020, the Coronavirus, Aid, Relief, and Economic Security (CARES) Act, which provides relief from certain requirements under GAAP, was signed into law. Section 4013 of the CARES Act gives entities temporary relief from the accounting and disclosure requirements for troubled debt restructurings (TDRs) under ASC 310-40 in certain situations. On April 7, 2020, certain regulatory banking agencies, in consultation with the FASB, issued the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (Interagency statement) applicable for all entities, which offers practical expedients for evaluating whether loan modifications in response to the COVID-19 pandemic are treated as TDRs. The Company will apply relief granted under Section 4013 of the CARES Act and the Interagency statement with respect to certain qualifying loan modifications. For loan modifications that qualify under the CARES Act, TDR accounting and reporting is suspended through the period of the modification; however, the Company will continue to apply its existing non-accrual policies including consideration of the loan's past due status which is determined on the basis of the contractual terms of the loan. Once a loan has been contractually modified, the past due status is generally based on the updated terms including payment deferrals. As of September 30, 2020, loan modifications did not have a material impact on the Company's results of operations. See Note 3 of Notes to the Consolidated Financial Statements for additional details.

Reclassifications: Certain reclassifications have been made to prior-year amounts to conform to current-year reporting classifications. These reclassifications had no impact on net earnings or total shareholders' equity.

10

New Accounting Pronouncements

Recently Adopted Accounting Pronouncements

Standard	Description	Date of Adoption	Effect on Financial Statements or Other Significant Matters
Accounting Standards Update (ASU) 2020-04 Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting	In March 2020, the FASB issued amendments that provide optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships, and other transactions affected by the reference rate reform if certain criteria are met. The amendments in this ASU only apply to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. An entity may elect to apply the amendments as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020, up to the date that the financial statements are available to be issued. The amendments generally expire on December 31 2022, i.e., they do not apply to contract modifications made after December 31, 2022, new hedging relationships entered into after December 31, 2022, and hedging relationships evaluated for periods after December 31, 2022.	April 1, 2020	The adoption of the new guidance did not have an impact on the Company’s financial statements. The Company will continue to evaluate the impacts of reference rate reform on contract modifications and hedging relationships through December 31, 2022.
ASU 2019-04 Codification Improvements to Topic 326, Financial Instruments - Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments	In April 2019, the FASB issued Codification improvements to clarify and correct certain areas of guidance amended as part of ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities; ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments; and ASU 2017-12, Derivative and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The most significant of these improvements to the Company was related to the Codification improvement to ASU 2017-12 and the clarification that a one-time reclassification of assets that are eligible to be hedged under the last-of-layer method (i.e., certain pre-payable securities) from held-to-maturity to available-for-sale is allowed under the new hedge accounting guidance and would not impact the Company’s ability to continue to classify other bonds as held-to-maturity. The other amendments related to ASU 2017-12 and 2016-01 are either not significant, or were previously implemented as part of the related ASU adoptions. Applicable amendments related to ASU 2016-13 are discussed within the recent adoption of that update below.	January 1, 2020	The adoption of this guidance resulted in a reclassification of $6.9 billion (at amortized cost) of pre-payable fixed-maturity securities from the held-to-maturity to the available-for-sale category. The reclassification resulted in recording in accumulated other comprehensive income a net unrealized gain of $848 million on an after-tax basis, based on the securities’ fair values on the reclassification date. The reclassification impacted the adoption of ASU 2016-13 (see ASU 2016-13 below for additional details).

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Standard	Description	Date of Adoption	Effect on Financial Statements or Other Significant Matters
ASU 2018-17 Consolidation: Targeted Improvements to Related Party Guidance for Variable Interest Entities	In October 2018, the FASB issued targeted improvements which provide that indirect interests held through related parties under common control should be considered on a proportional basis for determining whether fees paid to decision makers and service providers are variable interests.	January 1, 2020	The adoption of this guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures.
ASU 2018-13 Fair Value Measurement, Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement	In August 2018, the FASB issued amendments to the disclosure requirements on fair value measurements. The amendments remove, modify, and add certain disclosures.	January 1, 2020	The adoption of this guidance did not have a significant impact on the Company’s financial position, results of operations, or disclosures.
ASU 2017-04 Intangibles - Goodwill and Other: Simplifying the Test for Goodwill Impairment	In January 2017, the FASB issued amendments simplifying the subsequent measurement of goodwill. An entity, under this update, is no longer required to perform a hypothetical purchase price allocation to measure goodwill impairment. Instead, the entity should perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount.	January 1, 2020	The adoption of this guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures.
ASU 2016-13 Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments as clarified and amended by: ASU 2019-04, Codification Improvements to Topic 326, Financial Instruments - Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments, ASU 2019-05, Financial Instruments - Credit Losses (Topic 326), Targeted Transition Relief and ASU 2019-11, Codification Improvements to Topic 326, Financial Instruments- Credit Losses	In June 2016, the FASB issued amendments that require a financial asset (or a group of financial assets) measured at amortized cost to be presented net of an allowance for credit losses (Credit Losses ASU) in order to reflect the amount expected to be collected on the financial asset(s). The measurement of expected credit losses is amended by replacing the incurred loss impairment methodology with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information. Credit losses on available-for-sale debt securities is measured in a manner similar to prior U.S. GAAP; however, the amendments require that credit losses be presented as an allowance rather than as a write-down. Other amendments include changes to the balance sheet presentation and interest income recognition of purchased financial assets with a more-than-insignificant credit deterioration since origination (PCD financial assets).	January 1, 2020	The Company recorded a cumulative effect adjustment with a decrease to beginning 2020 retained earnings of $56 million, net of taxes. See Note 3 of the Notes to the Consolidated Financial Statements for credit loss disclosures. The following line items in the consolidated balance sheets were most significantly impacted by the adoption of the new accounting standard: •Fixed maturity securities held to maturity, at amortized cost •Commercial mortgage and other loans •Reinsurance recoverable, included within Other assets

12

Accounting Pronouncements Pending Adoption

Standard	Description	Effect on Financial Statements or Other Significant Matters
ASU 2020-01 Clarifying the interactions between Topic 321, Topic 323, and Topic 815	In January 2020, the FASB issued amendments clarifying that an entity should consider observable transactions that require it to either apply or discontinue the equity method of accounting for the purposes of applying the measurement alternative in accordance with Topic 321 immediately before applying or upon discontinuing the equity method. In addition, the amendments clarify that for the purpose of applying certain derivative guidance in Topic 815, an entity should not consider whether, upon the settlement of the forward contract or exercise of the purchased option, individually or with existing investments, the underlying securities would be accounted for under the equity method in Topic 323 or the fair value option in accordance with the financial instruments guidance in Topic 825. An entity also would evaluate the remaining characteristics in Topic 815 to determine the accounting for those forward contracts and purchased options. The amendments are effective for public business entities for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. Early adoption is permitted.	The adoption of this guidance is not expected to have a significant impact on the Company's financial position, results of operations, or disclosures.
ASU 2018-12 Financial Services - Insurance, Targeted Improvements to the Accounting for Long-Duration Contracts as clarified and amended by: ASU 2019-09 Financial Services - Insurance (Topic 944): Effective Date	In August 2018, the FASB issued amendments that will significantly change how insurers account for long-duration contracts. The amendments will change existing recognition, measurement, presentation, and disclosure requirements. Issues addressed in the new guidance include: 1) a requirement to review and, if there is a change, update assumptions for the liability for future policy benefits at least annually, and to update the discount rate assumption quarterly, 2) accounting for market risk benefits at fair value, 3) simplified amortization for deferred acquisition costs, and 4) enhanced financial statement presentation and disclosures. In November 2019, the FASB issued an amendment extending the effective date for public business entities that meet the definition of an SEC filer, excluding entities eligible to be small reporting companies as defined by the SEC, by one year. The amendments are now effective for the Company for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2021. Early application of the amendments is permitted. In September 2020, the FASB Board voted in favor of providing an additional year deferral for all insurance entities due to the impact of COVID-19. It is expected that this Update will be finalized in the fourth quarter of 2020 which would result in an effective date for Aflac of January 1, 2023.	The Company is thoroughly evaluating the impact of adoption and expects that the adoption will have a significant impact on the Company’s financial position, results of operations, and disclosures. The Company anticipates that the requirement to update assumptions for liability for future policy benefits will have a significant impact on its results of operations, systems, processes and controls while the requirement to update the discount rate will have a significant impact on its equity. The Company has no products with market risk benefits. The Company does not expect to early adopt the updated standard and has selected a modified retrospective transition method.

Recent accounting guidance not discussed above is not applicable, did not have, or is not expected to have a material impact to the Company's business. 

For additional information on new accounting pronouncements and recent accounting guidance and their impact, if any, on the Company's financial position, results of operations or disclosures, see Note 1 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report.

2.    BUSINESS SEGMENT INFORMATION

The Company consists of two reportable insurance business segments: Aflac Japan and Aflac U.S., both of which sell supplemental health and life insurance. In addition, operating business units that are not individually reportable and business activities, including reinsurance retrocession activities, not included in Aflac Japan or Aflac U.S. are included in Corporate and other.

The Company does not allocate corporate overhead expenses to business segments. Consistent with U.S. GAAP accounting guidance for segment reporting, the Company evaluates and manages its business segments using a financial

13

performance measure called pretax adjusted earnings. Adjusted earnings are adjusted revenues less benefits and adjusted expenses. The adjustments to both revenues and expenses account for certain items that cannot be predicted or that are outside management’s control. Adjusted revenues are U.S. GAAP total revenues excluding net investment gains and losses, except for amortized hedge costs/income related to foreign currency exposure management strategies and net interest cash flows from derivatives associated with certain investment strategies. Adjusted expenses are U.S. GAAP total acquisition and operating expenses including the impact of interest cash flows from derivatives associated with notes payable but excluding any nonrecurring or other items not associated with the normal course of the Company’s insurance operations and that do not reflect Aflac’s underlying business performance. The Company excludes income taxes related to operations to arrive at pretax adjusted earnings. Information regarding operations by reportable segment and Corporate and other, follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In millions)	2020		2019		2020		2019
Revenues:
Aflac Japan:
Net earned premiums	$	3,168	$	3,241	$	9,476	$	9,593
Adjusted net investment income (1),(2)	663		659		1,939		1,878
Other income	11		12		32		34
Total adjusted revenue Aflac Japan	3,842		3,912		11,447		11,505
Aflac U.S.:
Net earned premiums	1,407		1,445		4,348		4,365
Net investment income (3)	175		183		523		540
Other income	24		2		78		6
Total adjusted revenue Aflac U.S.	1,606		1,630		4,949		4,911
Corporate and other (4)	87		97		292		287
Total adjusted revenues	5,535		5,639		16,688		16,703
Net investment gains (losses) (1),(2),(3),(4)	130		(103)		(454)		1
Total revenues	$	5,665	$	5,536	$	16,234	$	16,704

(1) Amortized hedge costs of $51 and $66 for the three-month periods and $155 and $191 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies have been reclassified from net investment gains (losses) and reported as a deduction from net investment income when analyzing operations.

(2) Net interest cash flows from derivatives associated with certain investment strategies of $6 and $(4) for the three-month periods and $5 and $(18) for the nine-month periods ended September 30, 2020 and 2019, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

(3) Net interest cash flows from derivatives associated with certain investment strategies of $1 for the three-month period and $2 for the nine-month period ended September 30, 2020, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

(4) Amortized hedge income of $22 and $21 for the three-month periods $78 and $61 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies has been reclassified from net investment gains (losses) and reported as an increase to net investment income when analyzing operations.

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	Three Months Ended September 30,				Nine Months Ended September 30,
(In millions)	2020		2019		2020		2019
Pretax adjusted earnings:
Aflac Japan (1),(2)	$	747	$	838	$	2,442	$	2,504
Aflac U.S. (3)	329		335		1,082		996
Corporate and other (4),(5)	(39)		(17)		(69)		(62)
Pretax adjusted earnings (6)	1,037		1,156		3,455		3,438
Net investment gains (losses) (1),(2),(3),(4),(5)	117		(120)		(497)		(49)
Other income (loss)	(1)		0		(16)		(1)
Total earnings before income taxes	$	1,153	$	1,036	$	2,942	$	3,388
Income taxes applicable to pretax adjusted earnings	$	43	$	293	$	659	$	880
Effect of foreign currency translation on after-tax adjusted earnings	3		15		17		2

(1) Amortized hedge costs of $51 and $66 for the three-month periods and $155 and $191 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies have been reclassified from net investment gains (losses) and reported as a deduction from net investment income when analyzing operations.

(2) Net interest cash flows from derivatives associated with certain investment strategies of $6 and $(4) for the three-month periods and $5 and $(18) for the nine-month periods ended September 30, 2020 and 2019, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

(3) Net interest cash flows from derivatives associated with certain investment strategies of $1 for the three-month period and $2 for the nine-month period ended September 30, 2020, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

(4) Amortized hedge income of $22 and $21 for the three-month periods and $78 and $61 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies has been reclassified from net investment gains (losses) and reported as an increase in net investment income when analyzing operations.

(5) A gain of $13 and $16 for three-month periods and $43 and $50 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to the interest rate component of the change in fair value of foreign currency swaps on notes payable has been reclassified from net investment gains (losses) and included in adjusted earnings when analyzing operations.

(6) Includes $44 and $34 for the three-month periods and $122 and $100 for the nine-month periods ended September 30, 2020, and 2019, respectively, of interest expense on debt.

Assets were as follows:

(In millions)	September 30, 2020			December 31, 2019
Assets:
Aflac Japan		$	133,995		$	127,523
Aflac U.S.		22,621			20,945
Corporate and other		4,339			4,300
Total assets		$	160,955		$	152,768

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3.    INVESTMENTS

Investment Holdings

The amortized cost for the Company's investments in fixed maturity securities, the cost for equity securities and the fair values of these investments are shown in the following tables.

	September 30, 2020
(In millions)	Amortized Cost		Allowance for Credit Losses		Gross Unrealized Gains		Gross Unrealized Losses		Fair   Value
Securities available for sale, carried at fair value through other comprehensive income:
Fixed maturity securities:
Yen-denominated:
Japan government and agencies	$	32,646	$	0	$	4,297	$	42	$	36,901
Municipalities	1,013		0		305		3		1,315
Mortgage- and asset-backed securities	337		0		28		1		364
Public utilities	4,585		0		960		1		5,544
Sovereign and supranational	1,054		0		82		4		1,132
Banks/financial institutions	7,505		0		683		180		8,008
Other corporate	7,934		0		1,484		86		9,332
Total yen-denominated	55,074		0		7,839		317		62,596
U.S. dollar-denominated:
U.S. government and agencies	276		0		18		0		294
Municipalities	1,143		0		161		0		1,304
Mortgage- and asset-backed securities	344		0		10		1		353
Public utilities	3,942		0		924		12		4,854
Sovereign and supranational	230		0		66		6		290
Banks/financial institutions	2,956		0		738		6		3,688
Other corporate	25,973		38		4,110		296		29,749
Total U.S. dollar-denominated	34,864		38		6,027		321		40,532
Total securities available for sale	$	89,938	$	38	$	13,866	$	638	$	103,128

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	December 31, 2019
(In millions)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair   Value
Securities available for sale, carried at fair value through other comprehensive income:
Fixed maturity securities:
Yen-denominated:
Japan government and agencies	$	30,929	$	5,169	$	0	$	36,098
Municipalities	516		116		3		629
Mortgage- and asset-backed securities	229		25		0		254
Public utilities	1,855		406		0		2,261
Sovereign and supranational	680		50		0		730
Banks/financial institutions	6,152		700		86		6,766
Other corporate	5,323		944		24		6,243
Total yen-denominated	45,684		7,410		113		52,981
U.S dollar-denominated:
U.S. government and agencies	293		9		0		302
Municipalities	1,077		141		0		1,218
Mortgage- and asset-backed securities	149		7		0		156
Public utilities	3,804		725		10		4,519
Sovereign and supranational	239		73		0		312
Banks/financial institutions	2,879		646		4		3,521
Other corporate	25,246		3,255		248		28,253
Total U.S. dollar-denominated	33,687		4,856		262		38,281
Total securities available for sale	$	79,371	$	12,266	$	375	$	91,262

	September 30, 2020
(In millions)	Amortized Cost		Allowance for Credit Losses		Net Carrying Amount		Gross Unrealized Gains		Gross Unrealized Losses		Fair   Value
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Yen-denominated:
Japan government and agencies	$	22,941	$	3	$	22,938	$	5,564	$	0	$	28,502
Municipalities	370		0		370		120		0		490
Public utilities	47		1		46		14		0		60
Sovereign and supranational	564		5		559		164		0		723
Other corporate	24		0		24		8		0		32
Total yen-denominated	23,946		9		23,937		5,870		0		29,807
Total securities held to maturity	$	23,946	$	9	$	23,937	$	5,870	$	0	$	29,807

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	December 31, 2019
(In millions)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Yen-denominated:
Japan government and agencies	$	22,241	$	6,050	$	0	$	28,291
Municipalities	821		262		0		1,083
Mortgage- and asset-backed securities	16		1		0		17
Public utilities	2,535		419		0		2,954
Sovereign and supranational	1,123		197		0		1,320
Banks/financial institutions	916		105		3		1,018
Other corporate	2,433		485		7		2,911
Total yen-denominated	30,085		7,519		10		37,594
Total securities held to maturity	$	30,085	$	7,519	$	10	$	37,594

(In millions)	September 30, 2020			December 31, 2019
Equity securities, carried at fair value through net earnings:	Fair Value			Fair Value
Equity securities:
Yen-denominated		$	630		$	658
U.S. dollar-denominated		145			144
Total equity securities		$	775		$	802

The methods of determining the fair values of the Company's investments in fixed maturity securities and equity securities, including a refinement in valuation methodology for determining fair value of privately issued securities as of September 30, 2020, are described in Note 5.

During the second and third quarter of 2020, the Company did not reclassify any investments from the held-to-maturity category to the available-for-sale category. During the first quarter of 2020, as a result of the adoption of ASU 2019-04 discussed in Note 1, the Company reclassified $6.9 billion (at amortized cost) of pre-payable fixed-maturity securities from the held-to-maturity category to the available-for-sale category. This reclassification resulted in recording in accumulated other comprehensive income a net unrealized gain of $848 million on an after-tax basis. During the first nine months of 2019, the Company did not reclassify any investments from the held-to-maturity category to the available-for-sale category.

Contractual and Economic Maturities

The contractual and economic maturities of the Company's investments in fixed maturity securities at September 30, 2020, were as follows:

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(In millions)	Amortized Cost (1)			Fair Value
Available for sale:
Due in one year or less		$	1,031		$	1,053
Due after one year through five years		8,938			9,175
Due after five years through 10 years		13,159			15,092
Due after 10 years		66,091			77,091
Mortgage- and asset-backed securities		681			717
Total fixed maturity securities available for sale		$	89,900		$	103,128
Held to maturity:
Due in one year or less		$	0		$	0
Due after one year through five years		0			0
Due after five years through 10 years		251			292
Due after 10 years		23,686			29,515
Mortgage- and asset-backed securities		0			0
Total fixed maturity securities held to maturity		$	23,937		$	29,807

(1) Net of allowance for credit losses

Economic maturities are used for certain debt instruments with no stated maturity where the expected maturity date is based on the combination of features in the financial instrument such as the right to call or prepay obligations or changes in coupon rates.

Investment Concentrations

The Company's process for investing in credit-related investments begins with an independent approach to underwriting each issuer's fundamental credit quality. The Company evaluates independently those factors that it believes could influence an issuer's ability to make payments under the contractual terms of the Company's instruments. This includes a thorough analysis of a variety of items including the issuer's country of domicile (including political, legal, and financial considerations); the industry in which the issuer competes (with an analysis of industry structure, end-market dynamics, and regulation); company specific issues (such as management, assets, earnings, cash generation, and capital needs); and contractual provisions of the instrument (such as financial covenants and position in the capital structure). The Company further evaluates the investment considering broad business and portfolio management objectives, including asset/liability needs, portfolio diversification, and expected income.

Investment exposures that individually exceeded 10% of shareholders' equity were as follows:

	September 30, 2020			December 31, 2019
(In millions)	Credit Rating	Amortized Cost	Fair Value	Credit Rating	Amortized Cost	Fair Value
Japan National Government(1)	A+	$54,078	$63,588	A+	$51,726	$62,584

(1)Japan Government Bonds (JGBs) or JGB-backed securities

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Net Investment Gains and Losses

Information regarding pretax net gains and losses from investments is as follows:

	Three Months Ended September 30,					Nine Months Ended September 30,
(In millions)	2020		2019			2020		2019
Net investment gains (losses):
Sales and redemptions:
Fixed maturity securities available for sale:
Gross gains from sales	$	7	$	11		$	28	$	55
Gross losses from sales	0		(18)			(46)		(29)
Foreign currency gains (losses) on sales and redemptions	(5)		(21)			(39)		(12)
Total sales and redemptions	2		(28)			(57)		14
Equity securities	12		18			(106)		65
Loan loss reserves (1)	0		(5)			0		(8)
Credit losses:
Fixed maturity securities available for sale	0		(13)		(2)	(75)		(13)		(2)
Fixed maturity securities held to maturity	0		0			1		0
Commercial mortgage and other loans	78		0			(86)		0
Loan commitments	64		0			(17)		0
Reinsurance recoverables and other	0		0			(2)		0
Total credit losses	142		(13)			(179)		(13)
Derivatives and other:
Derivative gains (losses)	138		(146)			173		(24)
Foreign currency gains (losses)	(186)		21			(356)		(181)
Total derivatives and other	(48)		(125)			(183)		(205)
Total net investment gains (losses)	$	108	$	(153)		$	(525)	$	(147)

(1) U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only

(2) Includes other-than-temporary impairment losses for prior year

The unrealized holding gains, net of losses, recorded as a component of net investment gains and losses for the three-month period ended September 30, 2020, that relate to equity securities still held at the September 30, 2020 reporting date, were $31 million. The unrealized holding losses, net of gains, recorded as a component of net investment gains and losses for the nine-month period ended September 30, 2020, that relate to equity securities still held at the September 30, 2020 reporting date, were $109 million.

Unrealized Investment Gains and Losses

Effect on Shareholders’ Equity

The net effect on shareholders’ equity of unrealized gains and losses from fixed maturity securities was as follows:

(In millions)	September 30, 2020			December 31, 2019
Unrealized gains (losses) on securities available for sale		$	13,228		$	11,891
Deferred income taxes		(3,708)			(3,343)
Shareholders’ equity, unrealized gains (losses) on fixed maturity securities		$	9,520		$	8,548

Gross Unrealized Loss Aging

The following tables show the fair values and gross unrealized losses of the Company's available-for-sale investments for the period ended September 30, 2020 and available-for-sale and held-to-maturity investments for prior periods that were in an unrealized loss position, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position.

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	September 30, 2020
	Total						Less than 12 months						12 months or longer
(In millions)	Fair Value			Unrealized Losses			Fair Value			Unrealized Losses			Fair Value			Unrealized Losses
Fixed maturity securities available for sale:
Japan government and agencies:
Yen-denominated		$	1,997		42			1,997			42			0			0
Municipalities:
Yen-denominated		74			3			60			2			14			1
Mortgage- and asset- backed securities:
U.S. dollar-denominated		67			1			67			1			0			0
Yen-denominated		36			1			36			1			0			0
Public utilities:
U.S. dollar-denominated		342			12			210			6			132			6
Yen-denominated		214			1			214			1			0			0
Sovereign and supranational:
U.S. dollar-denominated		36			6			36			6			0			0
Yen-denominated		35			4			35			4			0			0
Banks/financial institutions:
U.S. dollar-denominated		103			6			65			1			38			5
Yen-denominated		2,859			180			1,853			102			1,006			78
Other corporate:
U.S. dollar-denominated		4,574			296			2,200			76			2,374			220
Yen-denominated		1,095			86			911			81			184			5
Total		$	11,432		$	638		$	7,684		$	323		$	3,748		$	315

	December 31, 2019
	Total						Less than 12 months						12 months or longer
(In millions)	Fair Value			Unrealized Losses			Fair Value			Unrealized Losses			Fair Value			Unrealized Losses
Fixed maturity securities:
Municipalities:
Yen-denominated		$	80		$	3		$	80		$	3		$	0		$	0
Public utilities:
U.S. dollar-denominated		306			10			69			2			237			8
Banks/financial institutions:
U.S. dollar-denominated		79			4			18			0			61			4
Yen-denominated		1,828			89			1,828			89			0			0
Other corporate:
U.S. dollar-denominated		4,261			248			792			53			3,469			195
Yen-denominated		636			31			636			31			0			0
Total		$	7,190		$	385		$	3,423		$	178		$	3,767		$	207

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Analysis of Securities in Unrealized Loss Positions

The unrealized losses on the Company's fixed maturity securities investments have been primarily related to general market changes in interest rates, foreign exchange rates, and/or the levels of credit spreads rather than specific concerns with the issuer's ability to pay interest and repay principal.

For any significant declines in fair value of its fixed maturity securities, the Company performs a more focused review of the related issuers' credit profile. For corporate issuers, the Company evaluates their assets, business profile including industry dynamics and competitive positioning, financial statements and other available financial data. For non-corporate issuers, the Company analyzes all sources of credit support, including issuer-specific factors. The Company utilizes information available in the public domain and, for certain private placement issuers, from consultations with the issuers directly. The Company also considers ratings from Nationally Recognized Statistical Rating Organizations (NRSROs), as well as the specific characteristics of the security it owns including seniority in the issuer's capital structure, covenant protections, or other relevant features. From these reviews, the Company evaluates the issuers' continued ability to service the Company's investment through payment of interest and principal.

Assuming no credit-related factors develop, unrealized gains and losses on fixed maturity securities are expected to diminish as investments near maturity. Based on its credit analysis, the Company believes that the issuers of its fixed maturity investments in the sectors shown in the table above have the ability to service their obligations to the Company, and the Company does not intend to sell the investments and it is not more likely than not that the Company will be required to sell the investments before recovery of their amortized cost bases, which may be at maturity.

However, the Company has identified certain available-for-sale fixed maturity securities where the amortized cost basis exceeds the present value of the cash flows expected to be collected due to credit related factors and as a result, a credit allowance has been calculated. As of September 30, 2020, the Company held an allowance of $38 million. Refer to the Credit Losses section below for additional information.

Commercial Mortgage and Other Loans

The Company classifies its transitional real estate loans (TREs), commercial mortgage loans (CMLs) and middle market loans (MMLs) as held-for-investment and includes them in the commercial mortgage and other loans line on the consolidated balance sheets. The Company carries them on the balance sheet at amortized cost less an estimated allowance for credit losses.

The following table reflects the composition of the carrying value for commercial mortgage and other loans by property type as of the periods presented.

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(In millions)	September 30, 2020				December 31, 2019
	Amortized Cost		% of Total		Amortized Cost			% of Total
Commercial Mortgage and other loans:
Transitional real estate loans:
Office	$	2,146	19.5	%	$	1,800		18.7	%
Retail	179		1.6		131			1.4
Apartments/Multi-Family	2,000		18.2		2,085			21.7
Industrial	145		1.3		256			2.7
Hospitality	1,093		10.0		1,036			10.8
Other	81		0.7		164			1.7
Total transitional real estate loans	5,644		51.3		5,472			57.0
Commercial mortgage loans:
Office	403		3.7		410			4.3
Retail	342		3.1		348			3.5
Apartments/Multi-Family	594		5.4		569			5.9
Industrial	393		3.6		383			4.0
Total commercial mortgage loans	1,732		15.8		1,710			17.7
Middle market loans	3,611		32.9		2,432			25.3
Total commercial mortgage and other loans	$	10,987	100.0	%	$	9,614		100.0	%
Allowance for credit losses	(165)				(45)		(1)
Total net commercial mortgage and other loans	$	10,822			$	9,569

(1) U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only.

Commercial mortgage and transitional real estate loans were secured by properties entirely within the U.S. (with the largest concentrations in California (21%), Texas (14%) and Florida (11%)). Middle market loans are issued only to companies domiciled within the U.S. and Canada.

Transitional Real Estate Loans

Transitional real estate loans are commercial mortgage loans that are typically relatively short-term floating rate instruments secured by a first lien on the property. These loans provide funding for properties undergoing a change in their physical characteristics and/or economic profile and do not typically require any principal repayment prior to the maturity date. This loan portfolio is generally considered to be investment grade. As of September 30, 2020, the Company had $657 million in outstanding commitments to fund transitional real estate loans. These commitments are contingent on the final underwriting and due diligence to be performed.

Commercial Mortgage Loans

Commercial mortgage loans are typically fixed rate loans on commercial real estate with partial repayment of principal over the life of the loan with the remaining outstanding principal being repaid upon maturity. This loan portfolio is generally considered higher quality investment grade loans. As of September 30, 2020, the Company had no outstanding commitments to fund commercial mortgage loans.

Middle Market Loans

Middle market loans are typically first lien senior secured cash flow loans to small to mid-size companies for working capital, refinancing, acquisition, and recapitalization. These loans are generally considered to be below investment grade. The carrying value for middle market loans included $26 million and $99 million for a short term credit facility that is reflected in other liabilities on the consolidated balance sheets, as of September 30, 2020, and December 31, 2019, respectively.

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As of September 30, 2020, the Company had commitments of approximately $2.3 billion of which $2.0 billion was a result of a new agreement with an external manager during the first quarter of 2020 to fund future middle market loans. These commitments are contingent upon the availability of middle market loans that meet the Company's underwriting criteria.

Credit Losses

Effective January 1, 2020, the Company adopted ASC 326: Financial Instruments - Credit Losses. The newly adopted accounting standard requires the Company to estimate an expected lifetime credit loss on financial assets including short-term receivables, held-to-maturity fixed maturity securities, loan receivables, loan commitments and reinsurance recoverables. For the Company’s available-for-sale fixed maturity securities, the newly adopted guidance requires an entity to evaluate estimated credit losses only when the fair value of the available-for-sale fixed maturity security is below its amortized cost basis. Credit loss changes are recorded as a component of net investment gains and losses for the Company’s held-to-maturity and available-for-sale securities, loan receivables, loan commitments and reinsurance recoverables. The Company’s off-balance sheet credit exposure is primarily attributable to loan commitments that are not unconditionally cancellable. The Company considers the contractual period of exposure to credit risk, the likelihood that funding will occur, the risk of loss, and the current conditions and expectations of future economic conditions to develop the estimate of expected credit losses. The Company records the estimate of expected credit losses for certain loan commitments within other liabilities in the consolidated balance sheet.

Write-offs and partial write-offs are recorded as a reduction to the amortized cost of the loan or fixed maturity security balance and a reduction to the credit allowance.

The Company’s held-to-maturity fixed maturity portfolio includes Japan Government and Agency securities of $22.8 billion amortized cost as of September 30, 2020 that meet the requirements for zero-credit-loss expectation and therefore these asset classes have been excluded from the current expected credit loss measurement.

The Company has elected not to measure an allowance on accrued interest income for all asset types, because the uncollectible accrued interest receivable is written off in a timely manner. The Company writes off accrued interest when it is more than ninety days past due. The Company has elected to write off accrued interest by reversing interest income, which is a component of net investment income, in the consolidated statement of earnings.

The Company designates nonaccrual status for a nonperforming debt security or a loan that is not generating its stated interest rate because of nonpayment of periodic interest by the borrower. The Company applies the cash basis method to record any payments received on non-accrual assets. The Company resumes the accrual of interest on fixed maturity securities and loans that are currently making contractual payments or for those that are not current where the borrower has paid timely (less than 30 days outstanding).

The Company records due premium receivable net of current expected credit losses in the receivables line item in the consolidated balance sheet, utilizing an aging methodology based on historical loss information, adjusted for current conditions and reasonable and supportable forecasts. Changes in the estimated credit losses related to premium receivable are recorded in net premiums in the consolidated statement of earnings.

Credit Quality Indicators

For TREs, the Company’s key credit quality indicator is loan-to-value (LTV). Given that TRE loans involve properties undergoing renovation or construction, loan-to-value provides the most insight into the credit risk of the loan. The Company monitors the performance of the loans periodically, but not less frequently than quarterly.

For CMLs, the Company’s key credit quality indicators include LTV and debt service coverage ratios (DSCR). LTV is calculated by dividing the current outstanding loan balance by the most recent estimated property value. DSCR is the most recently available operating income of the underlying property compared to the required debt service of the loan.

For MMLs and held-to-maturity fixed maturity securities, the Company’s key credit quality indicator is credit ratings. The Company’s held-to-maturity portfolio is composed of investment grade securities that are senior unsecured instruments, while its MMLs generally have below-investment-grade ratings but are typically senior secured instruments. The Company monitors the credit ratings periodically, but not less frequently than quarterly.

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For the Company’s reinsurance recoverable balance, the key credit quality indicator is the credit rating of the Company’s reinsurance counterparty. The Company uses external credit ratings focused on the reinsurer’s financial strength and credit worthiness. The Company's counterparties are rated A+. The Company monitors the credit ratings periodically, but not less frequently than quarterly.

The following tables present as of September 30, 2020 the amortized cost basis of TREs, CMLs and MMLs by year of origination and credit quality indicator.

Transitional Real Estate Loans
(In millions)	2020		2019		2018		2017		2016		Prior		Total
Loan-to-Value Ratio:
0%-59.99%	$	48	$	529	$	382	$	158	$	20	$	57	$	1,194
60%-69.99%	324		811		825		440		0		0		2,400
70%-79.99%	132		767		851		224		14		0		1,988
80% or greater	26		36		0		0		0		0		62
Total	$	530	$	2,143	$	2,058	$	822	$	34	$	57	$	5,644

Commercial Mortgage Loans
(In millions)	2020		2019		2018		2017		2016		Prior		Total		Weighted-Average DSCR
Loan-to-Value Ratio:
0%-59.99%	$	32	$	402	$	101	$	69	$	553	$	0	$	1,157	2.63
60%-69.99%	16		224		70		0		184		0		494		1.93
70%-79.99%	0		33		0		0		22		0		55		1.79
80% or greater	0		0		0		0		26		0		26		1.66
Total	48		659		171		69		785		0		1,732		2.39
Weighted Average DSCR	1.98		2.53		2.23		2.56		2.32		0.00		2.39

Middle Market Loans
(In millions)	2020		2019		2018		2017		2016		Prior		Revolving Loans		Total
Credit Ratings:
BBB	$	25	$	117	$	62	$	56	$	5	$	0	$	16	$	281
BB	201		235		237		84		37		15		86		895
B	267		740		315		235		119		24		185		1,885
CCC	15		98		121		96		37		31		90		488
CC and lower	0		0		19		39		3		0		1		62
Total	$	508	$	1,190	$	754	$	510	$	201	$	70	$	378	$	3,611

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Allowance for Credit Losses

The Company calculates its allowance for credit losses for held-to-maturity fixed maturity securities, loan receivables, loan commitments and reinsurance recoverable by grouping assets with similar risk characteristics when there is not a specific expectation of a loss for an individual asset. For held-to-maturity fixed maturity securities, MMLs, and MML commitments, the Company groups assets by credit ratings, industry, and country. The Company groups CMLs and TREs and respective loan commitments by property type, property location and the property’s loan-to-value and debt service coverage ratios. The credit allowance for the reinsurance recoverable balance is estimated using a probability-of-default (PD) / loss-given-default (LGD) method.

The Company’s methodology for estimating credit losses for available-for-sale fixed maturity securities utilizes the discounted cash flow model, based on past events, current market conditions and future economic conditions, as well as industry analysis and credit ratings of the fixed maturity securities. In addition, the Company evaluates the specific issuer’s probability of default and expected recovery of its position in the event of default based on the underlying financial condition and assets of the borrower as well as seniority and/or security of other debt holders in the issuer when developing management’s best estimate of expected cash flows.

The credit allowance for held-to-maturity fixed maturity securities and loan receivables is estimated using a PD / LGD method, discounted for the time value of money. For held-to-maturity fixed maturity securities, available-for-sale fixed maturity securities and loan receivables, the Company includes the change in present value due to the passage of time in the change in the allowance for credit losses. The Company’s methodology for estimating credit losses utilizes the contractual maturity date of the financial asset, adjusted when necessary to reflect the expected timing of repayment (such as prepayment options, renewal options, call options, or extension options). The Company applies reasonable and supportable forecasts of macroeconomic variables that impact the determination of PD/LGD over a two-year period for held-to-maturity fixed maturity securities and MMLs. The Company reverts to historical loss information over one year, following the two-year forecast period. For the CML and TRE portfolio, the Company applies reasonable and supportable forecasts of macroeconomic variables as well as national and local real-estate market factors to estimate future credit losses where the market factors revert back to historical levels over time with the period being dependent on current market conditions, projected market conditions and difference in the current and historical market levels for each factor. The Company continuously monitors the estimation methodology, due to changes in portfolio composition, changes in underwriting practices and significant events or conditions and makes adjustments as necessary.

A TDR involves a situation where the Company grants a concession to a borrower that the Company would not otherwise have considered due to the borrower’s financial difficulties. The Company has elected to apply Section 4013 of the CARES Act, or the Interagency statement which temporarily suspends TDR accounting guidance for loan modifications, such as extensions or deferrals, related to COVID-19. The relief provided by the CARES Act applies to loan modifications made between March 1, 2020 and the earlier of (i) December 31, 2020 or (ii) 60 days after the end of the COVID-19 national emergency, as determined by the Executive Branch, whereas the Interagency statement does not specify a time horizon.

The Company granted certain loan modifications in its MML and TRE portfolios due to COVID-19 during the nine months ended September 30, 2020. The nature of the modifications varied in scope and significance, but generally a small proportion of modifications qualified as TDR. The Company continues to evaluate loan modifications in our MML and TRE portfolios. As of September 30, 2020, the amortized cost of modified loans where Section 4013 of the CARES Act or the Interagency statement is applicable was immaterial.

The Company had an immaterial amount of TDRs during the nine months ended September 30, 2020. The Company had no TDRs during 2019. For certain TDRs, modifications resulted in write-offs for certain loans where the modified loan resulted in a forgiveness of existing principal and are included in the rollforward of the allowance for credit losses below.

As of September 30, 2020 and December 31, 2019, the Company had an immaterial amount (cost basis) of loans and fixed maturities on nonaccrual status.

The following table presents the roll forward of the allowance for credit losses by portfolio segment during the nine-month period ended September 30, 2020.

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(in millions)	Transitional Real Estate Loans		Commercial Mortgage Loans		Middle Market Loans		Held to Maturity Securities		Available for Sale Securities		Reinsurance Recoverables
Balance at December 31, 2019 (1)	$	(22)	$	(3)	$	(20)	$	0	$	0	$	0
Transition impact to retained earnings	(2)		(8)		(33)		(10)		0		(11)
(Addition to) release of allowance for credit losses	(29)		(17)		(31)		1		(75)		0
Write-offs, net of recoveries	0		0		0		0		37		0
Balance at September 30, 2020	$	(53)	$	(28)	$	(84)	$	(9)	$	(38)	$	(11)

(1) U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only.

For assets that are subject to the credit loss measurement, the change in credit loss allowance will be significantly impacted by purchases and sales in those assets during the period as well as entering into new non-cancelable loan commitments. During the first quarter of 2020, the Company entered into a loan commitment with an external manager that met the requirements to recognize a credit loss on over $2.2 billion of loan commitments over the next few years. The estimate of credit losses for loan commitments as of September 30, 2020 was $31 million.

Other Investments

The table below reflects the composition of the carrying value for other investments as of the periods presented.

(In millions)	September 30, 2020			December 31, 2019
Other investments:
Policy loans		$	261		$	250
Short-term investments (1)		823			628
Limited partnerships		795			569
Other		25			30
Total other investments		$	1,904		$	1,477

(1) Includes securities lending collateral

As of September 30, 2020, the Company had $1.5 billion in outstanding commitments to fund alternative investments in limited partnerships.

Variable Interest Entities (VIEs)

As a condition of its involvement or investment in a VIE, the Company enters into certain protective rights and covenants that preclude changes in the structure of the VIE that would alter the creditworthiness of the Company's investment or its beneficial interest in the VIE.

For those VIEs other than certain unit trust structures, the Company's involvement is passive in nature. The Company has not, nor has it been, required to purchase any securities issued in the future by these VIEs.

The Company's ownership interest in VIEs is limited to holding the obligations issued by them. The Company has no direct or contingent obligations to fund the limited activities of these VIEs, nor does it have any direct or indirect financial guarantees related to the limited activities of these VIEs. The Company has not provided any assistance or any other type of financing support to any of the VIEs it invests in, nor does it have any intention to do so in the future. For those VIEs in which the Company holds debt obligations, the weighted-average lives of the Company's notes are very similar to the underlying collateral held by these VIEs where applicable.

The Company's risk of loss related to its interests in any of its VIEs is limited to the carrying value of the related investments held in the VIE.

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VIEs - Consolidated

The following table presents the cost or amortized cost, fair value and balance sheet caption in which the assets and liabilities of consolidated VIEs are reported.

Investments in Consolidated Variable Interest Entities

	September 30, 2020						December 31, 2019
(In millions)	Amortized Cost (1)			Fair Value			Amortized Cost			Fair Value
Assets:
Fixed maturity securities, available for sale		$	3,279		$	4,284		$	3,308		$	4,312
Commercial mortgage and other loans		9,245			9,201			7,956			8,015
Other investments (2)		658			658			494			494
Other assets (3)		97			97			169			169
Total assets of consolidated VIEs		$	13,279		$	14,240		$	11,927		$	12,990
Liabilities:
Other liabilities (3)		$	240		$	240		$	126		$	126
Total liabilities of consolidated VIEs		$	240		$	240		$	126		$	126

(1) Net of allowance for credit losses

(2) Consists entirely of alternative investments in limited partnerships

(3) Consists entirely of derivatives

The Company is substantively the only investor in the consolidated VIEs listed in the table above. As the sole investor in these VIEs, the Company has the power to direct the activities of a variable interest entity that most significantly impact the entity's economic performance and is therefore considered to be the primary beneficiary of the VIEs that it consolidates. The Company also participates in substantially all of the variability created by these VIEs. The activities of these VIEs are limited to holding invested assets and foreign currency swaps, as appropriate, and utilizing the cash flows from these securities to service its investment. Neither the Company nor any of its creditors are able to obtain the underlying collateral of the VIEs unless there is an event of default or other specified event. For those VIEs that contain a swap, the Company is not a direct counterparty to the swap contracts and has no control over them. The Company's loss exposure to these VIEs is limited to its original investment. The Company's consolidated VIEs do not rely on outside or ongoing sources of funding to support their activities beyond the underlying collateral and swap contracts, if applicable. With the exception of its investment in unit trust structures, the underlying collateral assets and funding of the Company's consolidated VIEs are generally static in nature.

Investments in Unit Trust Structures

The Company also utilizes unit trust structures in its Aflac Japan segment to invest in various asset classes. As the sole investor of these VIEs, the Company is required to consolidate these trusts under U.S. GAAP.

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VIEs - Not Consolidated

The table below reflects the amortized cost, fair value and balance sheet caption in which the Company's investment in VIEs not consolidated are reported.

Investments in Variable Interest Entities Not Consolidated

	September 30, 2020						December 31, 2019
(In millions)	Amortized Cost			Fair Value			Amortized Cost			Fair Value
Assets:
Fixed maturity securities, available for sale		$	5,800		$	6,985		$	4,129		$	4,884
Fixed maturity securities, held to maturity		0			0			1,848			2,236
Other investments (1)		137			137			75			74
Total investments in VIEs not consolidated		$	5,937		$	7,122		$	6,052		$	7,194

(1) Consists entirely of alternative investments in limited partnerships

The Company holds alternative investments in limited partnerships that have been determined to be VIEs. These partnerships invest in private equity and structured investments. The Company’s maximum exposure to loss on these investments is limited to the amount of its investment. The Company is not the primary beneficiary of these VIEs and is therefore not required to consolidate them. The Company classifies these investments as Other investments in the consolidated balance sheets.

Certain investments in VIEs that the Company is not required to consolidate are investments that are in the form of debt obligations from the VIEs that are irrevocably and unconditionally guaranteed by their corporate parents or sponsors. These VIEs are the primary financing vehicles used by their corporate sponsors to raise financing in the capital markets. The variable interests created by these VIEs are principally or solely a result of the debt instruments issued by them. The Company does not have the power to direct the activities that most significantly impact the entity's economic performance, nor does it have the obligation to absorb losses of the entity or the right to receive benefits from the entity. As such, the Company is not the primary beneficiary of these VIEs and is therefore not required to consolidate them.

Securities Lending and Pledged Securities

The Company lends fixed maturity and public equity securities to financial institutions in short-term security-lending transactions. These short-term security-lending arrangements increase investment income with minimal risk. The Company receives cash or other securities as collateral for such loans. The Company's security lending policy requires that the fair value of the securities received as collateral be 102% or more of the fair value of the loaned securities and that unrestricted cash received as collateral be 100% or more of the fair value of the loaned securities. The securities loaned continue to be carried as investment assets on the Company's balance sheet during the terms of the loans and are not reported as sales. For loans involving unrestricted cash or securities as collateral, the collateral is reported as an asset with a corresponding liability for the return of the collateral. For loans where the Company receives as collateral securities that the Company is not permitted to sell or repledge, the collateral is not reflected on the consolidated financial statements.

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Details of collateral by loaned security type and remaining maturity of the agreements were as follows:

Securities Lending Transactions Accounted for as Secured Borrowings
Remaining Contractual Maturity of the Agreements
	September 30, 2020						December 31, 2019
(In millions)	Overnight and Continuous(1)		Up to 30 days		Total		Overnight and Continuous(1)		Up to 30 days		Total
Securities lending transactions:
Fixed maturity securities:
Japan government and agencies	$	0	$	534	$	534	$	0	$	1,013	$	1,013
Public utilities	61		0		61		35		0		35
Sovereign and supranational	2		0		2		2		0		2
Banks/financial institutions	85		0		85		48		0		48
Other corporate	813		0		813		778		0		778
Total borrowings	$	961	$	534	$	1,495	$	863	$	1,013	$	1,876
Gross amount of recognized liabilities for securities lending transactions					$	1,495					$	1,876

(1) The related loaned security, under the Company's U.S. securities lending program, can be returned to the Company at the transferee's discretion; therefore, they are classified as Overnight and Continuous.

In connection with securities lending, in addition to cash collateral received, the Company received from counterparties securities collateral of $6,176 million and $4,759 million at September 30, 2020 and December 31, 2019, respectively, which may not be sold or re-pledged, unless the counterparty is in default. Such securities collateral is not reflected on the consolidated financial statements.

The Company did not have any repurchase agreements or repurchase-to-maturity transactions outstanding as of September 30, 2020, and December 31, 2019, respectively.

Certain fixed maturity securities can be pledged as collateral as part of derivative transactions, or pledged to support state deposit requirements or certain investment programs. For additional information regarding pledged securities related to derivative transactions, see Note 4.

4.    DERIVATIVE INSTRUMENTS

The Company's freestanding derivative financial instruments have historically consisted of:

•foreign currency forwards and options used in hedging foreign exchange risk on U.S. dollar-denominated investments in Aflac Japan's portfolio

•foreign currency forwards and options used to economically hedge certain portions of forecasted cash flows denominated in yen and hedge the Company's long term exposure to a weakening yen

•cross-currency interest rate swaps, also referred to as foreign currency swaps, associated with certain senior notes and subordinated debentures

•foreign currency swaps that are associated with VIE bond purchase commitments, and investments in special-purpose entities, including VIEs where the Company is the primary beneficiary

•interest rate swaps used to economically hedge interest rate fluctuations in certain variable-rate investments

•interest rate swaptions used to hedge changes in the fair value associated with interest rate fluctuations for certain U.S. dollar-denominated available-for-sale fixed-maturity securities.

•bond purchase commitments at the inception of investments in consolidated VIEs

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Some of the Company's derivatives are designated as cash flow hedges, fair value hedges or net investment hedges; however, other derivatives do not qualify for hedge accounting or the Company elects not to designate them as accounting hedges.

Derivative Types

Foreign currency forwards and options are executed for the Aflac Japan segment in order to hedge the currency risk on the carrying value of certain U.S. dollar-denominated investments. The average maturity of these forwards and options can change depending on factors such as market conditions and types of investments being held. In situations where the maturity of the forwards and options is shorter than the underlying investment being hedged, the Company may enter into new forwards and options near maturity of the existing derivative in order to continue hedging the underlying investment. In forward transactions, Aflac Japan agrees with another party to buy a fixed amount of yen and sell a corresponding amount of U.S. dollars at a specified future date. Aflac Japan also executes foreign currency option transactions in a collar strategy, where Aflac Japan agrees with another party to simultaneously purchase put options and sell call options. In the purchased put transactions, Aflac Japan obtains the option to buy a fixed amount of yen and sell a corresponding amount of U.S. dollars at a specified future date. In the sold call transaction, Aflac Japan agrees to sell a fixed amount of yen and buy a corresponding amount of U.S. dollars at a specified future date. The combination of purchasing the put option and selling the call option results in no net premium being paid (i.e. a costless or zero-cost collar). Additionally, the Company enters into purchased options, acting as caps to protect the downside of the sold call options beyond a specified level. As opposed to the collar strategies which are fair value hedges, these sold call option caps are classified as non-qualifying hedges.

From time to time, the Company may also enter into foreign currency forwards and options to hedge the currency risk associated with the net investment in Aflac Japan. In these forward transactions, Aflac agrees with another party to buy a fixed amount of U.S. dollars and sell a corresponding amount of yen at a specified price at a specified future date. In the option transactions, the Company may use a combination of foreign currency options to protect expected future cash flows by simultaneously purchasing yen put options (options that protect against a weakening yen) and selling yen call options (options that limit participation in a strengthening yen). The combination of these two actions create a zero-cost collar. Additionally, the Company enters into purchased options to hedge cash flows from the net investment in Aflac Japan.

The Company enters into foreign currency swaps pursuant to which it exchanges an initial principal amount in one currency for an initial principal amount of another currency, with an agreement to re-exchange the principal amounts at a future date. There may also be periodic exchanges of payments at specified intervals based on the agreed upon rates and notional amounts. Foreign currency swaps are used primarily in the consolidated VIEs in the Company's Aflac Japan portfolio to convert foreign-denominated cash flows to yen, the functional currency of Aflac Japan, in order to minimize cash flow fluctuations. The Company also uses foreign currency swaps to economically convert certain of its U.S. dollar-denominated senior note and subordinated debenture principal and interest obligations into yen-denominated obligations.

In order to reduce investment income volatility from its variable-rate investments, the Company enters into receive–fixed, pay–floating interest rate swaps. These derivatives are cleared and settled through a central clearinghouse.

Swaptions are used to mitigate the adverse impact resulting from significant changes in the fair value of U.S. dollar-denominated available-for-sale securities due to fluctuation in interest rates. In a payer swaption, the Company pays a premium to obtain the right, but not the obligation, to enter into a swap contract where it will pay a fixed rate and receive a floating rate. Interest rate swaption collars are combinations of two swaption positions. In order to maximize the efficiency of the collars while minimizing cost, a collar strategy is used whereby the Company purchases a long payer swaption (the Company purchases an option that allows it to enter into a swap where the Company will pay the fixed rate and receive the floating rate of the swap) and sells a short receiver swaption (the Company sells an option that provides the counterparty with the right to enter into a swap where the Company will receive the fixed rate and pay the floating rate of the swap). The combination of purchasing the long payer swaption and selling the short receiver swaption results in no net premium being paid (i.e. a costless or zero-cost collar).

Bond purchase commitments result from repackaged bond structures that are consolidated VIEs whereby there is a delay in the trade date and settlement date of the bond within the structure to ensure completion of all necessary legal agreements to support the consolidated VIE that issues the repackaged bond. Since the Company has a commitment to purchase the underlying bond at a specified price, the agreement meets the definition of a derivative where the value is derived based on the current market value of the bond compared to the fixed purchase price to be paid on the settlement date.

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Derivative Balance Sheet Classification

The table below summarizes the balance sheet classification of the Company's derivative fair value amounts, as well as the gross asset and liability fair value amounts. The fair value amounts presented do not include income accruals. Derivative assets are included in “Other Assets,” while derivative liabilities are included in “Other Liabilities” within the Company’s Consolidated Balance Sheets. The notional amount of derivative contracts represents the basis upon which pay or receive amounts are calculated and are not reflective of exposure or credit risk.

		September 30, 2020									December 31, 2019
(In millions)				Asset Derivatives			Liability Derivatives						Asset Derivatives			Liability Derivatives
Hedge Designation/ Derivative Type	Notional Amount			Fair Value			Fair Value			Notional Amount			Fair Value			Fair Value
Cash flow hedges:
Foreign currency swaps - VIE		$	18		$	0		$	1		$	75		$	0		$	8
Total cash flow hedges		18			0			1			75			0			8
Fair value hedges:
Foreign currency forwards		64			1			0			964			0			38
Foreign currency options		8,869			0			1			11,573			0			5
Interest rate swaptions		0			0			0			243			0			0
Total fair value hedges		8,933			1			1			12,780			0			43
Net investment hedge:
Foreign currency forwards		5,037			45			26			4,952			72			2
Foreign currency options		2,083			1			0			2,000			0			0
Total net investment hedge		7,120			46			26			6,952			72			2
Non-qualifying strategies:
Foreign currency swaps		2,250			53			49			2,800			72			78
Foreign currency swaps - VIE		2,743			97			239			2,587			169			118
Foreign currency forwards		25,319			236			309			19,821			166			337
Foreign currency options		9,071			0			0			9,553			0			0
Interest rate swaps		2,000			6			0			7,120			3			0
Interest rate swaptions		0			0			0			7			0			0
Total non-qualifying strategies		41,383			392			597			41,888			410			533
Total derivatives		$	57,454		$	439		$	625		$	61,695		$	482		$	586

Cash Flow Hedges

For certain variable-rate U.S. dollar-denominated available-for-sale securities held by Aflac Japan via consolidated VIEs, foreign currency swaps are used to swap the USD variable rate interest and principal payments to fixed rate JPY interest and principal payments. The Company has designated foreign currency swaps as a hedge of the variability in cash flows of a forecasted transaction or of amounts to be received or paid related to a recognized asset (“cash flow” hedge). The remaining maximum length of time for which these cash flows are hedged is approximately six years. The derivatives in the Company's consolidated VIEs that are not designated as accounting hedges are discussed in the "non-qualifying strategies" section of this note.

Fair Value Hedges

The Company designates and accounts for certain foreign currency forwards, options, and interest rate swaptions as fair value hedges when they meet the requirements for hedge accounting. The Company recognizes gains and losses on these derivatives as well as the offsetting gain or loss on the related hedged items in current earnings.

Foreign currency forwards and options hedge the foreign currency exposure of certain U.S. dollar-denominated available-for-sale fixed-maturity investments held in Aflac Japan. The change in the fair value of the foreign currency forwards related to the changes in the difference between the spot rate and the forward price is excluded from the assessment of hedge effectiveness. The change in fair value of the foreign currency option related to the time value of the option is recognized in current earnings and is excluded from the assessment of hedge effectiveness.

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Interest rate swaptions hedge the interest rate exposure of certain U.S. dollar-denominated available-for-sale securities held in Aflac Japan. For these hedging relationships, the Company excludes time value from the assessment of hedge effectiveness and recognizes changes in the intrinsic value of the swaptions in current earnings within net investment income. The change in the time value of the swaptions is recognized in other comprehensive income (loss) and amortized into earnings (net investment income) over its legal term.

The following table presents the gains and losses on derivatives and the related hedged items in fair value hedges.

Fair Value Hedging Relationships

(In millions)		Hedging Derivatives						Hedged Items
Hedging Derivatives	Hedged Items	Total Gains (Losses)		Gains (Losses) Excluded from Effectiveness Testing(1)		Gains (Losses) Included in Effectiveness Testing(2)		Gains (Losses)(2)		Net Investment Gains (Losses) Recognized for Fair Value Hedge
Three Months Ended September 30, 2020:
Foreign currency forwards	Fixed maturity securities	$	1	$	0	$	1	$	(1)	$	0
Foreign currency options	Fixed maturity securities	(2)		(2)		0		0		0
Total gains (losses)		$	(1)	$	(2)	$	1	$	(1)	$	0
Nine Months Ended September 30, 2020:
Foreign currency forwards	Fixed maturity securities	$	(15)	$	(8)	$	(7)	$	8	$	1
Foreign currency options	Fixed maturity securities	(4)		(3)		(1)		1		0
Total gains (losses)		$	(19)	$	(11)	$	(8)	$	9	$	1
Three Months Ended September 30, 2019:
Foreign currency forwards	Fixed maturity securities	$	(19)	$	(24)	$	5	$	(4)	$	1
Foreign currency options	Fixed maturity securities	(5)		(5)		0		0		0
Interest rate swaptions	Fixed maturity securities	(6)		(6)		0		0		0
Total gains (losses)		(30)		(35)		5		(4)		1
Nine Months Ended September 30, 2019:
Foreign currency forwards	Fixed maturity securities	$	(4)	$	(48)	$	44	$	(43)	$	1
Foreign currency options	Fixed maturity securities	(9)		(9)		0		0		0
Interest rate swaptions	Fixed maturity securities	(9)		(9)		0		0		0
Total gains (losses)		$	(22)	$	(66)	$	44	$	(43)	$	1

(1) Gains (losses) excluded from effectiveness testing includes the forward point on foreign currency forwards and time value change on foreign currency options which are reported in the consolidated statement of earnings as net investment gains (losses). It also includes the change in the fair value of the interest rate swaptions related to the time value of the swaptions which is recognized as a component of other comprehensive income (loss).

(2) Gains and losses on foreign currency forwards and options and related hedged items are reported in the consolidated statement of earnings as net investment gains (losses). For interest rate swaptions and related hedged items, gains and losses included in the hedge assessment, premium amortization and time value amortization while the hedge items are still outstanding are reported within net investment income. The time value gains and losses for interest rate swaptions when the related hedged items are redeemed are reported in net investment gains and losses consistent with the impact of the hedged item. For the three-month and nine-month periods ended September 30, 2020 and 2019, gains and losses included in the hedge assessment on interest rate swaptions and related hedged items were immaterial.

33

The following table shows the carrying amounts of assets designated and qualifying as hedged items in fair value hedges of interest rate risk and the related cumulative hedge adjustment included in the carrying amount.

(In millions)	Carrying Amount of the Hedged Assets/(Liabilities)(1)					Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of Hedged Assets/(Liabilities)
		September 30, 2020		December 31, 2019		September 30, 2020		December 31, 2019
Fixed maturity securities		$	4,368	$	4,633	$	241	$	256

(1) The balance includes hedging adjustment on discontinued hedging relationships of $241 in 2020 and $256 in 2019.

The total notional amount of the Company's interest rate swaptions was $0 in 2020 and $243 in 2019. The hedging adjustment related to these derivatives was immaterial.

Net Investment Hedge

The Company's investment in Aflac Japan is affected by changes in the yen/dollar exchange rate. To mitigate this exposure, the Parent Company's yen-denominated liabilities (see Note 8) have been designated as non-derivative hedges. Beginning in July 2019, certain foreign currency forwards and options were designated as derivative hedges of the foreign currency exposure of the Company's net investment in Aflac Japan.

The Company's net investment hedge was effective during the three- and nine-month periods ended September 30, 2020 and 2019, respectively.

Non-qualifying Strategies

For the Company's derivative instruments in consolidated VIEs that do not qualify for hedge accounting treatment, all changes in their fair value are reported in current period earnings within net investment gains (losses). The amount of gain or loss recognized in earnings for the Company's VIEs is attributable to the derivatives in those investment structures. While the change in value of the swaps is recorded through current period earnings, the change in value of the available-for-sale fixed maturity securities associated with these swaps is recorded through other comprehensive income.

As of September 30, 2020, the Parent Company had $2.3 billion notional amount of cross-currency interest rate swap agreements related to certain of its U.S. dollar-denominated senior notes to effectively convert a portion of the interest on the notes from U.S dollar to Japanese yen. Changes in the values of these swaps are recorded through current period earnings. For additional information regarding these swaps, see Note 9 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report.

The Company uses foreign exchange forwards and options to economically mitigate the currency risk of some of its U.S. dollar-denominated loan receivables held within the Aflac Japan segment. These arrangements are not designated as accounting hedges, as the foreign currency remeasurement of the loan receivables impacts current period earnings, and generally offsets gains and losses from foreign exchange forwards within net investment gains (losses). The Company also has certain foreign exchange forwards on U.S. dollar-denominated available-for-sale securities where hedge accounting is not being applied.

Prior to July 2019, in order to economically mitigate currency risk of future yen dividends from Aflac Japan while lowering consolidated hedge costs associated with Aflac Japan's U.S. dollar investment hedging, the Parent Company entered into offsetting hedge positions using foreign exchange forwards. This activity is reported in the Corporate and other segment. As of July 1, 2019, the Parent Company designates these foreign exchange forward contracts as accounting hedges of its net investment in Aflac Japan.

The Company uses interest rate swaps to economically convert the variable rate investment income to a fixed rate on certain variable-rate investments.

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Impact of Derivatives and Hedging Instruments

The following table summarizes the impact to net investment gains (losses) and other comprehensive income (loss) from all derivatives and hedging instruments.

	Three Months Ended September 30,
	2020										2019
(In millions)	Net Investment Income (1)			Net Investment Gains (Losses)				Other Comprehensive Income (Loss)(2)			Net Investment Income (1)			Net Investment Gains (Losses)				Other Comprehensive Income (Loss)(2)
Qualifying hedges:
Cash flow hedges:
Foreign currency swaps - VIE		$	0		$	0			$	2		$	(1)		$	(1)			$	(2)
Total cash flow hedges		0			0		(3)		2			(1)			(1)		(3)		(2)
Fair value hedges:
Foreign currency forwards (3)					0										(23)
Foreign currency options (3)					(2)										(5)
Interest rate swaptions (3)		0			0				0			0			0				(6)
Total fair value hedges		0			(2)				0			0			(28)				(6)
Net investment hedge:
Non-derivative hedging instruments					0				(51)						0				2
Foreign currency forwards					(16)				(91)						20				19
Foreign currency options					(2)				0						(3)				0
Total net investment hedge					(18)				(142)						17				21
Non-qualifying strategies:
Foreign currency swaps					(27)										27
Foreign currency swaps - VIE					40										(93)
Foreign currency forwards					139										(70)
Foreign currency options					4										0
Interest rate swaps					0										2
Forward bond purchase commitment- VIE					2										0
Total non- qualifying strategies					158										(134)
Total		$	0		$	138			$	(140)		$	(1)		$	(146)			$	13

(1) Cash flow hedge items and the change in the fair value of interest rate swaptions related to the time value of the swaptions in fair value hedges are recorded as unrealized gains (losses) on derivatives and net investment hedge items are recorded in the unrealized foreign currency translation gains (losses) line in the consolidated statement of comprehensive income (loss).

(2) Impact of cash flow hedges reported as net investment gains (losses) includes an immaterial amount of gains or losses reclassified from accumulated other comprehensive income (loss) into earnings. It also includes an immaterial amount excluded from effectiveness testing during the three-month periods ended September 30, 2020 and 2019. In addition, an immaterial amount of income (loss) was reclassified from accumulated other comprehensive income (loss) into earnings during the three-month periods ended September 30, 2020 and 2019, related to fair value hedges excluded component.

(3)Impact shown net of effect of hedged items (see Fair Value Hedges section of this Note 4 for further detail)

35

	Nine Months Ended September 30,
	2020										2019
(In millions)	Net Investment Income(1)			Net Investment Gains (Losses)				Other Comprehensive Income (Loss)(2)			Net Investment Income(1)			Net Investment Gains (Losses)				Other Comprehensive Income (Loss)(2)
Qualifying hedges:
Cash flow hedges:
Foreign currency swaps - VIE		$	(1)		$	0			$	(4)		$	(2)		$	(1)			$	(4)
Total cash flow hedges		(1)			0		(3)		(4)			(2)			(1)		(3)		(4)
Fair value hedges:
Foreign currency forwards(3)					(7)										(47)
Foreign currency options(3)					(3)										(9)
Interest rate swaptions(3)		(1)			0				1			(1)			0				(8)
Total fair value hedges		(1)			(10)				1			(1)			(56)				(8)
Net investment hedge:
Non-derivative hedging instruments					0				(72)						0				(52)
Foreign currency forwards					136				(166)						20				19
Foreign currency options					(3)				0						(3)				0
Total net investment hedge					133				(238)						17				(33)
Non-qualifying strategies:
Foreign currency swaps					54										71
Foreign currency swaps - VIE					(185)										(96)
Foreign currency forwards					133										23
Foreign currency options					(1)										0
Interest rate swaps					49										18
Total non-qualifying strategies					50										16
Total		$	(2)		$	173			$	(241)		$	(3)		$	(24)			$	(45)

(1) Cash flow hedge items and the change in the fair value of interest rate swaptions related to the time value of the swaptions in fair value hedges are recorded as unrealized gains (losses) on derivatives and net investment hedge items are recorded in the unrealized foreign currency translation gains (losses) line in the consolidated statement of comprehensive income (loss).

(2) Impact of cash flow hedges reported as net investment gains (losses) includes an immaterial amount of gains or losses reclassified from accumulated other comprehensive income (loss) into earnings. It also includes an immaterial amount excluded from effectiveness testing during the nine-month periods ended September 30, 2020 and 2019, respectively. In addition, an immaterial amount of income (loss) was reclassified from accumulated other comprehensive income (loss) into earnings during the nine-month periods ended September 30, 2020 and 2019, respectively, related to fair value hedges excluded component.

(3)Impact shown net of effect of hedged items (see Fair Value Hedges section of this Note 4 for further detail)

As of September 30, 2020, deferred gains and losses on derivative instruments recorded in accumulated other comprehensive income that are expected to be reclassified to earnings during the next twelve months were immaterial.

Credit Risk Assumed through Derivatives

For the foreign currency and credit default swaps associated with the Company's VIE investments for which it is the primary beneficiary, the Company bears the risk of loss due to counterparty default even though it is not a direct counterparty to those contracts.

The Company is a direct counterparty to the foreign currency swaps that it has entered into in connection with certain of its senior notes and subordinated debentures; foreign currency forwards; and foreign currency options, and therefore the Company is exposed to credit risk in the event of nonperformance by the counterparties in those contracts. The risk of counterparty default for the Company's foreign currency swaps, certain foreign currency forwards, and foreign currency options is mitigated by collateral posting requirements that counterparties to those transactions must meet.

As of September 30, 2020, all of the Company's derivative agreement counterparties were investment grade.

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The Company engages in over-the-counter (OTC) bilateral derivative transactions directly with unaffiliated third parties under International Swaps and Derivatives Association, Inc. (ISDA) agreements and other documentation. Most of the ISDA agreements also include Credit Support Annexes (CSAs) provisions, which generally provide for two-way collateral postings at the first dollar of exposure. The Company mitigates the risk that counterparties to transactions might be unable to fulfill their contractual obligations by monitoring counterparty credit exposure and collateral value while generally requiring that collateral be posted at the outset of the transaction. In addition, a significant portion of the derivative transactions have provisions that give the counterparty the right to terminate the transaction upon a downgrade of Aflac’s financial strength rating. The actual amount of payments that the Company could be required to make depends on market conditions, the fair value of outstanding affected transactions, and other factors prevailing at and after the time of the downgrade.

The Company also engages in OTC cleared derivative transactions through regulated central clearing counterparties. These positions are marked to market and margined on a daily basis (both initial margin and variation margin), and the Company has minimal exposure to credit-related losses in the event of nonperformance by counterparties to these derivatives.

Collateral posted by the Company to third parties for derivative transactions can generally be repledged or resold by the counterparties. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a net liability position by counterparty was approximately $265 million and $301 million as of September 30, 2020, and December 31, 2019, respectively. If the credit-risk-related contingent features underlying these agreements had been triggered on September 30, 2020, the Company estimates that it would be required to post a maximum of $155 million of additional collateral to these derivative counterparties. The Company is generally allowed to sell or repledge collateral obtained from its derivative counterparties, although it does not typically exercise such rights. (See the Offsetting tables below for collateral posted or received as of the reported balance sheet dates.)

Offsetting of Financial Instruments and Derivatives

Most of the Company's derivative instruments are subject to enforceable master netting arrangements that provide for the net settlement of all derivative contracts between the Parent Company or its subsidiaries and the respective counterparty in the event of default or upon the occurrence of certain termination events. Collateral support agreements with the master netting arrangements generally provide that the Company will receive or pledge financial collateral at the first dollar of exposure.

The Company has securities lending agreements with unaffiliated financial institutions that post collateral to the Company in return for the use of its fixed maturity and public equity securities (see Note 3). When the Company has entered into securities lending agreements with the same counterparty, the agreements generally provide for net settlement in the event of default by the counterparty. This right of set-off allows the Company to keep and apply collateral received if the counterparty failed to return the securities borrowed from the Company as contractually agreed.

The tables below summarize the Company's derivatives and securities lending transactions, and as reflected in the tables, in accordance with U.S. GAAP, the Company's policy is to not offset these financial instruments in the Consolidated Balance Sheets.

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Offsetting of Financial Assets and Derivative Assets

September 30, 2020
										Gross Amounts Not Offset in Balance Sheet
(In millions)	Gross Amount of Recognized Assets			Gross Amount Offset in Balance Sheet			Net Amount of Assets Presented in Balance Sheet			Financial Instruments			Securities Collateral		Cash Collateral Received			Net Amount
Derivative assets:
Derivative       assets subject to a       master netting       agreement or       offsetting       arrangement
OTC - bilateral		$	336		$	0		$	336		$	(238)	$	(6)		$	(92)		$	0
OTC - cleared		6			0			6			0		0			(5)			1
Total derivative assets subject to a master netting agreement or offsetting arrangement		342			0			342			(238)		(6)			(97)			1
Derivative       assets not subject       to a master netting       agreement or       offsetting       arrangement
OTC - bilateral		97						97											97
Total derivative assets not subject to a master netting agreement or offsetting arrangement		97						97											97
Total derivative assets		439			0			439			(238)		(6)			(97)			98
Securities lending and similar arrangements		1,471			0			1,471			0		0			(1,471)			0
Total		$	1,910		$	0		$	1,910		$	(238)	$	(6)		$	(1,568)		$	98

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December 31, 2019
										Gross Amounts Not Offset in Balance Sheet
(In millions)	Gross Amount of Recognized Assets			Gross Amount Offset in Balance Sheet			Net Amount of Assets Presented in Balance Sheet			Financial Instruments			Securities Collateral		Cash Collateral Received			Net Amount
Derivative assets:
Derivative       assets subject to a       master netting       agreement or       offsetting       arrangement
OTC - bilateral		$	310		$	0		$	310		$	(190)	$	(7)		$	(113)		$	0
OTC - cleared		3			0			3			0		0			0			3
Total derivative assets subject to a master netting agreement or offsetting arrangement		313			0			313			(190)		(7)			(113)			3
Derivative       assets not subject       to a master netting       agreement or       offsetting       arrangement
OTC - bilateral		169						169											169
Total derivative assets not subject to a master netting agreement or offsetting arrangement		169						169											169
Total derivative assets		482			0			482			(190)		(7)			(113)			172
Securities lending and similar arrangements		1,860			0			1,860			0		0			(1,860)			0
Total		$	2,342		$	0		$	2,342		$	(190)	$	(7)		$	(1,973)		$	172

39

Offsetting of Financial Liabilities and Derivative Liabilities

September 30, 2020
										Gross Amounts Not Offset in Balance Sheet
(In millions)	Gross Amount of Recognized Liabilities			Gross Amount Offset in Balance Sheet			Net Amount of Liabilities Presented in Balance Sheet			Financial Instruments			Securities Collateral		Cash Collateral Pledged			Net Amount
Derivative liabilities:
Derivative       liabilities subject       to a master netting       agreement or       offsetting       arrangement
OTC - bilateral		$	385		$	0		$	385		$	(238)	$	(89)		$	(21)		$	37
Total derivative liabilities subject to a master netting agreement or offsetting arrangement		385			0			385			(238)		(89)			(21)			37
Derivative       liabilities not       subject to a       master netting       agreement or       offsetting       arrangement
OTC - bilateral		240						240											240
Total derivative liabilities not subject to a master netting agreement or offsetting arrangement		240						240											240
Total derivative liabilities		625			0			625			(238)		(89)			(21)			277
Securities lending and similar arrangements		1,495			0			1,495			(1,471)		0			0			24
Total		$	2,120		$	0		$	2,120		$	(1,709)	$	(89)		$	(21)		$	301

40

December 31, 2019
										Gross Amounts Not Offset in Balance Sheet
(In millions)	Gross Amount of Recognized Liabilities			Gross Amount Offset in Balance Sheet			Net Amount of Liabilities Presented in Balance Sheet			Financial Instruments			Securities Collateral		Cash Collateral Pledged			Net Amount
Derivative liabilities:
Derivative       liabilities subject       to a master netting       agreement or       offsetting       arrangement
OTC - bilateral		$	459		$	0		$	459		$	(190)	$	(222)		$	(32)		$	15
OTC - cleared		1			0			1			0		0			(1)			0
Total derivative liabilities subject to a master netting agreement or offsetting arrangement		460			0			460			(190)		(222)			(33)			15
Derivative       liabilities not       subject to a       master netting       agreement or       offsetting       arrangement
OTC - bilateral		126						126											126
Total derivative liabilities not subject to a master netting agreement or offsetting arrangement		126						126											126
Total derivative liabilities		586			0			586			(190)		(222)			(33)			141
Securities lending and similar arrangements		1,876			0			1,876			(1,860)		0			0			16
Total		$	2,462		$	0		$	2,462		$	(2,050)	$	(222)		$	(33)		$	157

For additional information on the Company's financial instruments, see the accompanying Notes 1, 3 and 5 and Notes 1, 3 and 5 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report.

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5.    FAIR VALUE MEASUREMENTS

Fair Value Hierarchy

U.S. GAAP specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. These two types of inputs create three valuation hierarchy levels. Level 1 valuations reflect quoted market prices for identical assets or liabilities in active markets. Level 2 valuations reflect quoted market prices for similar assets or liabilities in an active market, quoted market prices for identical or similar assets or liabilities in non-active markets or model-derived valuations in which all significant valuation inputs are observable in active markets. Level 3 valuations reflect valuations in which one or more of the significant inputs are not observable in an active market.

The following tables present the fair value hierarchy levels of the Company's assets and liabilities that are measured and carried at fair value on a recurring basis.

	September 30, 2020
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Assets:
Securities available for sale, carried at fair value:
Fixed maturity securities:
Government and agencies		$	35,539		$	1,656		$	0		$	37,195
Municipalities		0			2,619			0			2,619
Mortgage- and asset-backed securities		0			526			191			717
Public utilities		0			10,030			368			10,398
Sovereign and supranational		0			1,422			0			1,422
Banks/financial institutions		0			11,672			24			11,696
Other corporate		0			38,813			268			39,081
Total fixed maturity securities		35,539			66,738			851			103,128
Equity securities		608			81			86			775
Other investments		823			0			0			823
Cash and cash equivalents		5,563			0			0			5,563
Other assets:
Foreign currency swaps		0			53			97			150
Foreign currency forwards		0			282			0			282
Foreign currency options		0			1			0			1
Interest rate swaps		0			6			0			6
Total other assets		0			342			97			439
Total assets		$	42,533		$	67,161		$	1,034		$	110,728
Liabilities:
Other liabilities:
Foreign currency swaps		$	0		$	49		$	240		$	289
Foreign currency forwards		0			335			0			335
Foreign currency options		0			1			0			1
Total liabilities		$	0		$	385		$	240		$	625

42

	December 31, 2019
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Assets:
Securities available for sale, carried at fair value:
Fixed maturity securities:
Government and agencies		$	34,878		$	1,522		$	0		$	36,400
Municipalities		0			1,847			0			1,847
Mortgage- and asset-backed securities		0			232			178			410
Public utilities		0			6,556			224			6,780
Sovereign and supranational		0			1,042			0			1,042
Banks/financial institutions		0			10,264			23			10,287
Other corporate		0			34,234			262			34,496
Total fixed maturity securities		34,878			55,697			687			91,262
Equity securities		642			80			80			802
Other investments		628			0			0			628
Cash and cash equivalents		4,896			0			0			4,896
Other assets:
Foreign currency swaps		0			72			169			241
Foreign currency forwards		0			238			0			238
Interest rate swaps		0			3			0			3
Total other assets		0			313			169			482
Total assets		$	41,044		$	56,090		$	936		$	98,070
Liabilities:
Other liabilities:
Foreign currency swaps		$	0		$	78		$	126		$	204
Foreign currency forwards		0			377			0			377
Foreign currency options		0			5			0			5
Total liabilities		$	0		$	460		$	126		$	586

43

The following tables present the carrying amount and fair value categorized by fair value hierarchy level for the Company's financial instruments that are not carried at fair value.

	September 30, 2020
(In millions)	Carrying Value			Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Assets:
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Government and agencies		$	22,938		$	28,248		$	254		$	0		$	28,502
Municipalities		370			0			490			0			490
Public utilities		46			0			60			0			60
Sovereign and supranational		559			0			723			0			723
Other corporate		24			0			32			0			32
Commercial mortgage and other loans		10,822			0			0			10,786			10,786
Other investments (1)		25			0			25			0			25
Total assets		$	34,784		$	28,248		$	1,584		$	10,786		$	40,618
Liabilities:
Other policyholders’ funds		$	7,642		$	0		$	0		$	7,550		$	7,550
Notes payable (excluding leases)		7,675			0			8,264			282			8,546
Total liabilities		$	15,317		$	0		$	8,264		$	7,832		$	16,096

(1) Excludes policy loans of $261 and equity method investments of $795, at carrying value

44

	December 31, 2019
(In millions)	Carrying Value			Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Assets:
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Government and agencies		$	22,241		$	27,937		$	354		$	0		$	28,291
Municipalities		821			0			1,083			0			1,083
Mortgage and asset-backed securities		16			0			7			10			17
Public utilities		2,535			0			2,954			0			2,954
Sovereign and supranational		1,123			0			1,320			0			1,320
Banks/financial institutions		916			0			1,018			0			1,018
Other corporate		2,433			0			2,911			0			2,911
Commercial mortgage and other loans		9,569			0			0			9,648			9,648
Other investments (1)		30			0			30			0			30
Total assets		$	39,684		$	27,937		$	9,677		$	9,658		$	47,272
Liabilities:
Other policyholders’ funds		$	7,317		$	0		$	0		$	7,234		$	7,234
Notes payable (excluding leases)		6,408			0			6,663			272			6,935
Total liabilities		$	13,725		$	0		$	6,663		$	7,506		$	14,169

(1) Excludes policy loans of $250 and equity method investments of $569, at carrying value

Fair Value of Financial Instruments

Fixed maturity and equity securities

The Company determines the fair values of fixed maturity securities and public and privately-issued equity securities using the following approaches or techniques: price quotes and valuations from third party pricing vendors (including quoted market prices readily available from public exchange markets) and non-binding price quotes the Company obtains from outside brokers.

A third party pricing vendor has developed valuation models to determine fair values of privately issued securities.These models are discounted cash flow (DCF) valuation models, but also use information from related markets, specifically the credit default swap (CDS) market to estimate expected cash flows. These models take into consideration any unique characteristics of the securities and make various adjustments to arrive at an appropriate issuer-specific loss adjusted credit curve. This credit curve is then used with the relevant recovery rates to estimate expected cash flows and modeling of additional features, including illiquidity adjustments, if necessary, to price the security by discounting those loss adjusted cash flows. In cases where a credit curve cannot be developed from the specific security features, the valuation methodology takes into consideration other market observable inputs, including:

1) the most appropriate comparable security(ies) of the issuer

2) issuer-specific CDS spreads

3) bonds or CDS spreads of comparable issuers with similar characteristics such as rating, geography, or sector

4) bond indices that are comparative in rating, industry, maturity and region.

The pricing data and market quotes the Company obtains from outside sources, including third party pricing services, are reviewed internally for reasonableness. If a fair value appears unreasonable, the Company will re-examine the inputs and assess the reasonableness of the pricing data with the vendor. Additionally, the Company may compare the inputs to relevant market indices and other performance measurements. Based on management's analysis, the valuation is

45

confirmed or may be revised if there is evidence of a more appropriate estimate of fair value based on available market data. Beginning September 30, 2020, the Company refined these valuation models to explicitly incorporate currency basis swap adjustments (market observable data) to assumed interest rate curves where appropriate. The Company has performed verification of the inputs and calculations in any valuation models to confirm that the valuations represent reasonable estimates of fair value.

For the periods presented, the Company has not adjusted the quotes or prices it obtains from the pricing services and brokers it uses.

The following tables present the pricing sources for the fair values of the Company's fixed maturity and equity securities.

	September 30, 2020
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Securities available for sale, carried at fair value:
Fixed maturity securities:
Government and agencies:
Third party pricing vendor		$	35,539		$	1,656		$	0		$	37,195
Total government and agencies		35,539			1,656			0			37,195
Municipalities:
Third party pricing vendor		0			2,619			0			2,619
Total municipalities		0			2,619			0			2,619
Mortgage- and asset-backed securities:
Third party pricing vendor		0			361			0			361
Broker/other		0			165			191			356
Total mortgage- and asset-backed securities		0			526			191			717
Public utilities:
Third party pricing vendor		0			10,030			0			10,030
Broker/other		0			0			368			368
Total public utilities		0			10,030			368			10,398
Sovereign and supranational:
Third party pricing vendor		0			1,422			0			1,422
Total sovereign and supranational		0			1,422			0			1,422
Banks/financial institutions:
Third party pricing vendor		0			11,672			0			11,672
Broker/other		0			0			24			24
Total banks/financial institutions		0			11,672			24			11,696
Other corporate:
Third party pricing vendor		0			38,809			0			38,809
Broker/other		0			4			268			272
Total other corporate		0			38,813			268			39,081
Total securities available for sale		$	35,539		$	66,738		$	851		$	103,128
Equity securities, carried at fair value:
Third party pricing vendor		$	608		$	81		$	0		$	689
Broker/other		0			0			86			86
Total equity securities		$	608		$	81		$	86		$	775

46

	September 30, 2020
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Government and agencies:
Third party pricing vendor		$	28,248		$	254		$	0		$	28,502
Total government and agencies		28,248			254			0			28,502
Municipalities:
Third party pricing vendor		0			490			0			490
Total municipalities		0			490			0			490
Public utilities:
Third party pricing vendor		0			60			0			60
Total public utilities		0			60			0			60
Sovereign and supranational:
Third party pricing vendor		0			723			0			723
Total sovereign and supranational		0			723			0			723
Other corporate:
Third party pricing vendor		0			32			0			32
Total other corporate		0			32			0			32
Total securities held to maturity		$	28,248		$	1,559		$	0		$	29,807

47

	December 31, 2019
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Securities available for sale, carried at fair value:
Fixed maturity securities:
Government and agencies:
Third party pricing vendor		$	34,878		$	1,522		$	0		$	36,400
Total government and agencies		34,878			1,522			0			36,400
Municipalities:
Third party pricing vendor		0			1,847			0			1,847
Total municipalities		0			1,847			0			1,847
Mortgage- and asset-backed securities:
Third party pricing vendor		0			232			0			232
Broker/other		0			0			178			178
Total mortgage- and asset-backed securities		0			232			178			410
Public utilities:
Third party pricing vendor		0			6,556			0			6,556
Broker/other		0			0			224			224
Total public utilities		0			6,556			224			6,780
Sovereign and supranational:
Third party pricing vendor		0			1,042			0			1,042
Total sovereign and supranational		0			1,042			0			1,042
Banks/financial institutions:
Third party pricing vendor		0			10,264			0			10,264
Broker/other		0			0			23			23
Total banks/financial institutions		0			10,264			23			10,287
Other corporate:
Third party pricing vendor		0			34,234			0			34,234
Broker/other		0			0			262			262
Total other corporate		0			34,234			262			34,496
Total securities available for sale		$	34,878		$	55,697		$	687		$	91,262
Equity securities, carried at fair value:
Third party pricing vendor		$	642		$	80		$	0		$	722
Broker/other		0			0			80			80
Total equity securities		$	642		$	80		$	80		$	802

48

	December 31, 2019
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Government and agencies:
Third party pricing vendor		$	27,937		$	354		$	0		$	28,291
Total government and agencies		27,937			354			0			28,291
Municipalities:
Third party pricing vendor		0			1,083			0			1,083
Total municipalities		0			1,083			0			1,083
Mortgage- and asset-backed securities:
Third party pricing vendor		0			7			0			7
Broker/other		0			0			10			10
Total mortgage- and asset-backed securities		0			7			10			17
Public utilities:
Third party pricing vendor		0			2,954			0			2,954
Total public utilities		0			2,954			0			2,954
Sovereign and supranational:
Third party pricing vendor		0			1,320			0			1,320
Total sovereign and supranational		0			1,320			0			1,320
Banks/financial institutions:
Third party pricing vendor		0			1,018			0			1,018
Total banks/financial institutions		0			1,018			0			1,018
Other corporate:
Third party pricing vendor		0			2,911			0			2,911
Total other corporate		0			2,911			0			2,911
Total securities held to maturity		$	27,937		$	9,647		$	10		$	37,594

The following is a discussion of the determination of fair value of the Company's remaining financial instruments.

Derivatives

The Company uses derivative instruments to manage the risk associated with certain assets. However, the derivative instrument may not be classified in the same fair value hierarchy level as the associated asset. Inputs used to value derivatives include, but are not limited to, interest rates, credit spreads, foreign currency forward and spot rates, and interest volatility. The significant inputs to pricing derivatives are generally observable in the market or can be derived by observable market data. When these inputs are observable, the derivatives are classified as Level 2.

The fair value of foreign currency forward and options are based on observable market inputs, therefore they are classified as Level 2.

To determine the fair value of its interest rate derivatives, the Company uses inputs that are generally observable in the market or can be derived from observable market data. Interest rate swaps are cleared trades. In a cleared swap contract, the clearinghouse provides benefits to the counterparties similar to contracts listed for investment traded on an exchange since it maintains a daily margin to mitigate counterparties' credit risk. These derivatives are priced using observable inputs, accordingly, they are classified as Level 2. For its interest rate swaptions, the Company estimates their fair values using observable market data, including interest rate curves and volatilities. Their fair values are also classified as Level 2.

For derivatives associated with VIEs where the Company is the primary beneficiary, the Company is not the direct counterparty to the swap contracts. As a result, the fair value measurements incorporate the credit risk of the collateral

49

associated with the VIE. Based on an analysis of these derivatives and a review of the methodology employed by the pricing vendor, the Company determined that due to the long duration of these swaps and the need to extrapolate from short-term observable data to derive and measure long-term inputs, certain inputs, assumptions and judgments are required to value future cash flows that cannot be corroborated by current inputs or current observable market data. As a result, the derivatives associated with the Company's consolidated VIEs are classified as Level 3 of the fair value hierarchy.

For forward bond purchase commitments with VIEs, the fair value of the derivative is based on the difference in the fixed purchase price and the current market value of the related bond prior to the settlement date. Since the bond is typically a public bond with readily available pricing, the derivatives associated with the forward purchase commitment are classified as Level 2 of the fair value hierarchy.

Commercial mortgage and other loans

Commercial mortgage and other loans include transitional real estate loans, commercial mortgage loans and middle market loans. The Company's loan receivables do not have readily determinable market prices and generally lack market liquidity. Fair values for loan receivables are determined based on the present value of expected future cash flows discounted at the applicable U.S. Treasury or London Interbank Offered Rate (LIBOR) yield plus an appropriate spread that considers other risk factors, such as credit and liquidity risk. The spreads are a significant component of the pricing inputs and are generally considered unobservable. Therefore, these investments have been assigned a Level 3 within the fair value hierarchy.

Other investments

Other investments includes short-term investments that are measured at fair value where amortized cost approximates fair value.

Other policyholders' funds

The largest component of the other policyholders' funds liability is the Company's annuity line of business in Aflac Japan. The Company's annuities have fixed benefits and premiums. For this product, the Company estimates the fair value to be equal to the cash surrender value. This is analogous to the value paid to policyholders on the valuation date if they were to surrender their policy. The Company periodically checks the cash value against discounted cash flow projections for reasonableness. The Company considers its inputs for this valuation to be unobservable and have accordingly classified this valuation as Level 3.

Notes payable

The fair values of the Company's publicly issued notes payable are determined by utilizing available sources of observable inputs from third party pricing vendors and are classified as Level 2. The fair values of the Company's yen-denominated loans approximate their carrying values and are classified as Level 3.

50

Transfers between Hierarchy Levels and Level 3 Rollforward

The following tables present the changes in fair value of the Company's investments and derivatives carried at fair value classified as Level 3.

Three Months Ended September 30, 2020
	Fixed Maturity Securities								Equity Securities		Derivatives (1)
(In millions)	Mortgage- and Asset- Backed Securities		Public Utilities		Banks/ Financial Institutions		Other Corporate				Foreign Currency Swaps		Total
Balance, beginning of period	$	188	$	322	$	24	$	243	$	86	$	(168)	$	695
Net investment gains (losses) included in earnings	0		0		0		0		0		23		23
Unrealized gains (losses) included in other comprehensive income (loss)	3		15		0		24		0		2		44
Purchases, issuances, sales and settlements:
Purchases	0		33		0		1		5		0		39
Issuances	0		0		0		0		0		0		0
Sales	0		0		0		0		(5)		0		(5)
Settlements	0		(2)		0		0		0		0		(2)
Transfers into Level 3	0		0		0		0		0		0		0
Transfers out of Level 3	0		0		0		0		0		0		0
Balance, end of period	$	191	$	368	$	24	$	268	$	86	$	(143)	$	794
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities still held at the end of the period included in earnings	$	0	$	0	$	0	$	0	$	0	$	23	$	23

(1) Derivative assets and liabilities are presented net

Three Months Ended September 30, 2019
	Fixed Maturity Securities										Equity Securities		Derivatives (1)
(In millions)	Mortgage- and Asset- Backed Securities		Public Utilities		Banks/ Financial Institutions			Other Corporate						Foreign Currency Swaps		Total
Balance, beginning of period	$	183	$	204	$	24		$	199		$	65		$	94	$	769
Net investment gains (losses) included in earnings	0		0		0			0			0			(84)		(84)
Unrealized gains (losses) included in other comprehensive income (loss)	0		4		0			5			0			(2)		7
Purchases, issuances, sales and settlements:
Purchases	0		0		0			19			14			0		33
Issuances	0		0		0			0			0			0		0
Sales	0		0		0			0			0			0		0
Settlements	0		(2)		0			0			0			0		(2)
Transfers into Level 3	0		0		0			1		(2)	0			0		1
Transfers out of Level 3	0		0		(1)		(2)	0			0			0		(1)
Balance, end of period	$	183	$	206	$	23		$	224		$	79		$	8	$	723
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities still held at the end of the period included in earnings	$	0	$	0	$	0		$	0		$	0		$	(84)	$	(84)

(1) Derivative assets and liabilities are presented net

(2) Transfer due to sector classification change

51

Nine Months Ended September 30, 2020
	Fixed Maturity Securities											Equity Securities		Derivatives (1)
(In millions)	Mortgage- and Asset- Backed Securities			Public Utilities			Banks/ Financial Institutions		Other Corporate					Foreign Currency Swaps		Total
Balance, beginning of period	$	178		$	224		$	23	$	262		$	80	$	43	$	810
Net investment gains (losses) included in earnings	0			0			0		0			0		(184)		(184)
Unrealized gains (losses) included in other comprehensive income (loss)	5			6			0		8			0		(2)		17
Purchases, issuances, sales and settlements:
Purchases	0			129			1		13			12		0		155
Issuances	0			0			0		0			0		0		0
Sales	0			0			0		0			(6)		0		(6)
Settlements	(1)			(6)			0		0			0		0		(7)
Transfers into Level 3	9		(2)	15		(3)	0		0			0		0		24
Transfers out of Level 3	0			0			0		(15)		(3)	0		0		(15)
Balance, end of period	$	191		$	368		$	24	$	268		$	86	$	(143)	$	794
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities still held at the end of the period included in earnings	$	0		$	0		$	0	$	0		$	0	$	(184)	$	(184)

(1) Derivative assets and liabilities are presented net

(2) Transfer due to reclassification of level 3 securities from HTM to AFS

(3) Transfer due to sector classification change

Nine Months Ended September 30, 2019
	Fixed Maturity Securities										Equity Securities		Derivatives (1)
(In millions)	Mortgage- and Asset- Backed Securities		Public Utilities			Banks/ Financial Institutions		Other Corporate					Foreign Currency Swaps		Total
Balance, beginning of period	$	177	$	109		$	23	$	213		$	46	$	80	$	648
Net investment gains (losses) included in earnings	0		0			0		0			0		(68)		(68)
Unrealized gains (losses) included in other comprehensive income (loss)	6		10			1		12			0		(4)		25
Purchases, issuances, sales and settlements:
Purchases	0		0			0		107			33		0		140
Issuances	0		0			0		0			0		0		0
Sales	0		0			0		(2)			0		0		(2)
Settlements	0		(4)			0		0			0		0		(4)
Transfers into Level 3	0		116		(2)	0		26		(2)	0		0		142
Transfers out of Level 3	0		(25)		(2)	(1)		(132)		(2),(3)	0		0		(158)
Balance, end of period	$	183	$	206		$	23	$	224		$	79	$	8	$	723
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities still held at the end of the period included in earnings	$	0	$	0		$	0	$	0		$	0	$	(68)	$	(68)

(1) Derivative assets and liabilities are presented net

(2) Transfer due to sector classification change

(3) Transfer due to availability of observable market inputs

52

Fair Value Sensitivity

Level 3 Significant Unobservable Input Sensitivity

The following tables summarize the significant unobservable inputs used in the valuation of the Company's Level 3 investments and derivatives carried at fair value. Included in the tables are the inputs or range of possible inputs that have an effect on the overall valuation of the financial instruments.

September 30, 2020
(In millions)	Fair Value			Valuation Technique(s)	Unobservable Input	Range (Weighted Average)
Assets:
Securities available for sale, carried at fair value:
Fixed maturity securities:
Mortgage- and asset-backed securities		$	191	Consensus pricing	Offered quotes	N/A			(a)
Public utilities		368		Discounted cash flow	Credit spreads	N/A			(a)
Banks/financial institutions		24		Consensus pricing	Offered quotes	N/A			(a)
Other corporate		268		Discounted cash flow	Credit spreads	N/A			(a)
Equity securities		86		Net asset value	Offered quotes	N/A			(a)
Other assets:
Foreign currency swaps		27		Discounted cash flow	Interest rates (USD)	.71%	-	1.12%	(b)
					Interest rates (JPY)	.03%	-	.35%	(c)
					CDS spreads	23 bps	-	140 bps
		70		Discounted cash flow	Interest rates (USD)	.71%	-	1.12%	(b)
					Interest rates (JPY)	.03%	-	.35%	(c)
Total assets		$	1,034
Liabilities:
Other liabilities:
Foreign currency swaps		$	197	Discounted cash flow	Interest rates (USD)	.71%	-	1.12%	(b)
					Interest rates (JPY)	.03%	-	.35%	(c)
					CDS spreads	41 bps	-	140 bps
		43		Discounted cash flow	Interest rates (USD)	.71%	-	1.12%	(b)
					Interest rates (JPY)	.03%	-	.35%	(c)
Total liabilities		$	240

(a) N/A represents securities where the Company receives unadjusted broker quotes and for which there is no transparency into the providers' valuation techniques or unobservable inputs.

(b) Inputs derived from U.S. long-term rates to accommodate long maturity nature of the Company's swaps

(c) Inputs derived from Japan long-term rates to accommodate long maturity nature of the Company's swaps

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December 31, 2019
(In millions)	Fair Value			Valuation Technique(s)	Unobservable Input	Range (Weighted Average)
Assets:
Securities available for sale, carried at fair value:
Fixed maturity securities:
Mortgage- and asset-backed securities		$	178	Consensus pricing	Offered quotes	N/A			(a)
Public utilities		224		Discounted cash flow	Credit spreads	N/A			(a)
Banks/financial institutions		23		Consensus pricing	Offered quotes	N/A			(a)
Other corporate		262		Discounted cash flow	Credit spreads	N/A			(a)
Equity securities		80		Net asset value	Offered quotes	N/A			(a)
Other assets:
Foreign currency swaps		106		Discounted cash flow	Interest rates (USD)	1.89%	-	2.09%	(b)
					Interest rates (JPY)	.12%	-	.43%	(c)
					CDS spreads	10 bps	-	100 bps
		63		Discounted cash flow	Interest rates (USD)	1.89%	-	2.09%	(b)
					Interest rates (JPY)	.12%	-	.43%	(c)
Total assets		$	936
Liabilities:
Other liabilities:
Foreign currency swaps		$	118	Discounted cash flow	Interest rates (USD)	1.89%	-	2.09%	(b)
					Interest rates (JPY)	.12%	-	.43%	(c)
					CDS spreads	13 bps	-	159 bps
		8		Discounted cash flow	Interest rates (USD)	1.89%	-	2.09%	(b)
					Interest rates (JPY)	.12%	-	.43%	(c)
Total liabilities		$	126

(a) N/A represents securities where the Company receives unadjusted broker quotes and for which there is no transparency into the providers' valuation techniques or unobservable inputs.

(b) Inputs derived from U.S. long-term rates to accommodate long maturity nature of the Company's swaps

(c) Inputs derived from Japan long-term rates to accommodate long maturity nature of the Company's swaps

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The following is a discussion of the significant unobservable inputs or valuation techniques used in determining the fair value of securities and derivatives classified as Level 3.

Net Asset Value

The Company holds certain unlisted equity securities whose fair value is derived based on the financial statements published by the investee. These securities do not trade on an active market and the valuations derived are dependent on the availability of timely financial reporting of the investee. Net asset value is an unobservable input in the determination of fair value of equity securities.

Offered Quotes

In circumstances where the Company's valuation model price is overridden because it implies a value that is not consistent with current market conditions, the Company will solicit bids from a limited number of brokers. The Company also receives unadjusted prices from brokers for its mortgage and asset-backed securities. These quotes are non-binding but are reflective of valuation best estimates at that particular point in time. Offered quotes are an unobservable input in the determination of fair value of mortgage- and asset-backed securities, certain banks/financial institutions, certain other corporate, and equity securities investments.

Interest Rates and CDS Spreads

The significant drivers of the valuation of the foreign exchange swaps are interest rates and CDS spreads. Some of the Company's swaps have long maturities that increase the sensitivity of the swaps to interest rate fluctuations. For the Company's foreign exchange or cross currency swaps that are in a net asset position, an increase in yen interest rates (all other factors held constant) will decrease the present value of the yen final settlement receivable (receive leg), thus decreasing the value of the swap as long as the derivative remains in a net asset position.

Foreign exchange swaps also have a lump-sum final settlement of foreign exchange principal amounts at the termination of the swap. Assuming all other factors are held constant, an increase in yen interest rates will decrease the receive leg and decrease the net value of the swap. Likewise, holding all other factors constant, an increase in U.S. dollar interest rates will increase the swap's net value due to the decrease in the present value of the dollar final settlement payable (pay leg).

The extinguisher feature in most of the Company's VIE swaps results in a cessation of cash flows and no further payments between the parties to the swap in the event of a default on the referenced or underlying collateral. To price this feature, the Company applies the survival probability of the referenced entity to the projected cash flows. The survival probability uses the CDS spreads and recovery rates to adjust the present value of the cash flows. For extinguisher swaps with positive values, an increase in CDS spreads decreases the likelihood of receiving the final exchange payments and reduces the value of the swap.

For additional information on the Company's investments and financial instruments, see the accompanying Notes 1, 3 and 4 and Notes 1, 3 and 4 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report.

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6.    POLICY LIABILITIES

Changes in the liability for unpaid policy claims were as follows:

	Three Months Ended September 30,					Nine Months Ended September 30,
(In millions)		2020		2019			2020		2019
Unpaid supplemental health claims, beginning of period		$	4,041	$	4,024		$	3,968	$	3,952
Less reinsurance recoverables		37		31			31		28
Net balance, beginning of period		4,004		3,993			3,937		3,924
Add claims incurred during the period related to:
Current year		1,780		1,806			5,354		5,415
Prior years		(105)		(134)			(408)		(437)
Total incurred		1,675		1,672			4,946		4,978
Less claims paid during the period on claims incurred during:
Current year		1,295		1,421			2,971		3,150
Prior years		249		220			1,811		1,794
Total paid		1,544		1,641			4,782		4,944
Effect of foreign exchange rate changes on unpaid claims		42		(3)			76		63
Net balance, end of period		4,177		4,021			4,177		4,021
Add reinsurance recoverables		40		31			40		31
Unpaid supplemental health claims, end of period		4,217		4,052			4,217		4,052
Unpaid life claims, end of period		759		689			759		689
Total liability for unpaid policy claims		$	4,976	$	4,741		$	4,976	$	4,741

The incurred claims development related to prior years reflects favorable claims experience compared to previous estimates. The favorable claims development of $408 million for the nine-month period ended September 30, 2020 comprises approximately $264 million from Japan, which represents approximately 65% of the total. Excluding the impact of foreign exchange of a gain of approximately $3 million from December 31, 2019 to September 30, 2020, the favorable claims development in Japan would have been approximately $261 million, representing approximately 64% of the total. The remainder of the favorable claims development related to prior years for the nine-month period ended September 30, 2020, reflects Aflac U.S. favorable claims experience compared to previous estimates, primarily in cancer and accident lines of business.

The Company has experienced continued favorable claim trends in 2020 for its core health products in Japan. The Company's experience in Japan related to the average length of stay in the hospital for cancer treatment has shown continued decline in the current period. In addition, cancer treatment patterns in Japan are continuing to be influenced by significant advances in early-detection techniques and by the increased use of pathological diagnosis rather than clinical exams. Additionally, follow-up radiation and chemotherapy treatments are occurring more often on an outpatient basis. Such changes in treatment not only increase the quality of life and initial outcomes for the patients, but also decrease the average length of each hospital stay, resulting in favorable claims development.

The decrease in current year incurred claims in 2020 primarily reflects a decrease in Aflac U.S. claims as a result of reduced accidents, wellness medical visits and routine procedures due to shelter-in-place orders and heightened social distancing due to COVID-19.

7.    REINSURANCE

The Company periodically enters into fixed quota-share coinsurance agreements with other companies in the normal course of business. For each of its reinsurance agreements, the Company determines whether the agreement provides indemnification against loss or liability relating to insurance risk in accordance with applicable accounting standards. Reinsurance premiums and benefits paid or provided are accounted for on bases consistent with those used in accounting for the original policies issued and the terms of the reinsurance contracts. Premiums and benefits are reported net of insurance ceded.

The Company has recorded a deferred profit liability related to reinsurance transactions. The remaining deferred profit liability of $1.0 billion as of both September 30, 2020 and December 31, 2019, respectively, is included in future policy

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benefits in the consolidated balance sheet and is being amortized into income over the expected lives of the policies. The Company has also recorded a reinsurance recoverable for reinsurance transactions, which is included in other assets in the consolidated balance sheet and had a remaining balance of $1.0 billion and $970 million as of September 30, 2020 and December 31, 2019, respectively. The increase in the reinsurance recoverable balance was driven by the growth in reserves related to the business that has been reinsured as the policies age. The spot yen/dollar exchange rate strengthened by approximately 3.6% and ceded reserves increased approximately 3.5% from December 31, 2019 to September 30, 2020.

The following table reconciles direct premium income and direct benefits and claims to net amounts after the effect of reinsurance which also includes the elimination of inter-segment amounts associated with affiliated reinsurance.

	Three Months Ended September 30,						Nine Months Ended September 30,
(In millions)	2020			2019			2020			2019
Direct premium income		$	4,711		$	4,823		$	14,236		$	14,365
Ceded to other companies:
Ceded Aflac Japan closed blocks		(116)			(121)			(349)			(361)
Other		(22)			(17)			(69)			(50)
Assumed from other companies:
Retrocession activities		49			51			146			151
Other		1			0			5			4
Net premium income		$	4,623		$	4,736		$	13,969		$	14,109
Direct benefits and claims		$	3,051		$	3,106		$	9,054		$	9,185
Ceded benefits and change in reserves for future benefits:
Ceded Aflac Japan closed blocks		(103)			(111)			(314)			(331)
Eliminations		10			11			29			31
Other		(10)			(18)			(54)			(41)
Assumed from other companies:
Retrocession activities		47			49			133			144
Eliminations		(10)			(11)			(29)			(31)
Other		0			1			3			1
Benefits and claims, net		$	2,985		$	3,027		$	8,822		$	8,958

These reinsurance transactions are indemnity reinsurance that do not relieve the Company from its obligations to policyholders. In the event that the reinsurer is unable to meet their obligations, the Company remains liable for the reinsured claims.

As a part of its capital contingency plan, the Company entered into a committed reinsurance facility agreement on December 1, 2015 in the amount of approximately ¥120 billion of reserves. This reinsurance facility agreement was renewed in 2019 and is effective until December 31, 2020. There are also additional commitment periods of a one-year duration, each of which are automatically extended unless notification is received from the reinsurer within 60 days prior to the expiration. The reinsurer can withdraw from the committed facility if Aflac's Standard and Poor's (S&P) rating drops below BBB-. As of September 30, 2020, the Company has not executed a reinsurance treaty under this committed reinsurance facility.

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8.    NOTES PAYABLE AND LEASE OBLIGATIONS

A summary of notes payable and lease obligations follows:

(In millions)	September 30, 2020			December 31, 2019
4.00% senior notes paid January 2020		$	0		$	348
3.625% senior notes due June 2023		698			698
3.625% senior notes due November 2024		747			747
3.25% senior notes due March 2025		447			448
2.875% senior notes due October 2026		298			298
3.60% senior notes due April 2030		990			0
6.90% senior notes due December 2039		221			220
6.45% senior notes due August 2040		254			254
4.00% senior notes due October 2046		394			394
4.750% senior notes due January 2049		541			541
Yen-denominated senior notes and subordinated debentures:
.300% senior notes due September 2025 (principal amount ¥12.4 billion)		117			0
.932% senior notes due January 2027 (principal amount ¥60.0 billion)		565			545
.500% senior notes due December 2029 (principal amount ¥12.6 billion)		119			114
.550% senior notes due March 2030 (principal ¥13.3 billion)		125			0
1.159% senior notes due October 2030 (principal amount ¥29.3 billion)		275			266
.843% senior notes due December 2031 (principal amount ¥9.3 billion)		87			84
.750% senior notes due March 2032 (principal amount ¥20.7 billion)		194			0
1.488% senior notes due October 2033 (principal amount ¥15.2 billion)		143			138
.934% senior notes due December 2034 (principal amount ¥9.8 billion)		92			88
.830% senior notes due March 2035 (principal amount ¥10.6 billion)		99			0
1.750% senior notes due October 2038 (principal amount ¥8.9 billion)		83			81
1.122% senior notes due December 2039 (principal amount ¥6.3 billion)		59			57
2.108% subordinated debentures due October 2047 (principal amount ¥60.0 billion)		563			543
.963% subordinated bonds due April 2049 (principal amount ¥30.0 billion)		282			272
Yen-denominated loans:
Variable interest rate loan due September 2026 (.42% in 2020 and .32% in 2019, principal amount ¥5.0 billion)		47			45
Variable interest rate loan due September 2029 (.57% in 2020 and .47% in 2019, principal amount ¥25.0 billion)		235			227
Finance lease obligations payable through 2027		11			12
Operating lease obligations payable through 2049		139			149
Total notes payable and lease obligations		$	7,825		$	6,569

Amounts in the table above are reported net of debt issuance costs and issuance premiums or discounts, if applicable, that are being amortized over the life of the notes.

In April 2020, the Parent Company issued $1.0 billion of senior notes through a U.S. public debt offering. The notes bear interest at a fixed rate of 3.60% per annum, payable semi-annually, and will mature in April 2030. These notes are redeemable at the Parent Company's option in whole at any time or in part from time to time at a redemption price equal to the greater of: (i) the aggregate principal amount of the notes to be redeemed or (ii) the amount equal to the sum of the present values of the remaining scheduled payments for principal of and interest on the notes to be redeemed, not including any portion of the payments of interest accrued as of such redemption date, discounted to such redemption date on a semiannual basis at the yield to maturity for a U.S. Treasury security with a maturity comparable to the remaining term of the notes, plus 45 basis points, plus in each case, accrued and unpaid interest on the principal amount of the notes to be redeemed to, but excluding, such redemption date.

In March 2020, the Parent Company issued four series of senior notes totaling ¥57.0 billion through a public debt offering under its U.S. shelf registration statement. The first series, which totaled ¥12.4 billion, bears interest at a fixed rate

58

of .300% per annum, payable semi­annually and will mature in September 2025. The second series, which totaled ¥13.3 billion, bears interest at a fixed rate of .550% per annum, payable semi-annually, and will mature in March 2030. The third series, which totaled ¥20.7 billion, bears interest at a fixed rate of .750% per annum, payable semi­annually and will mature in March 2032. The fourth series, which totaled ¥10.6 billion, bears interest at a fixed rate of .830% per annum, payable semi-annually, and will mature in March 2035. These notes may only be redeemed before maturity, in whole but not in part, upon the occurrence of certain changes affecting U.S. taxation, as specified in the indenture governing the terms of the issuance.

In January 2020, the Parent Company used the net proceeds from senior notes issued in December 2019 to redeem $350 million of its 4.00% fixed-rate senior notes due February 2022.

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A summary of the Company's lines of credit as of September 30, 2020 follows:

Borrower(s)	Type	Term	Expiration Date	Capacity	Amount Outstanding	Interest Rate on Borrowed Amount	Maturity Period	Commitment Fee	Business Purpose
Aflac Incorporated and Aflac	uncommitted bilateral	364 days	December 18, 2020	$100 million	$0 million	The rate quoted by the bank and agreed upon at the time of borrowing	Up to 3 months	None	General corporate purposes
Aflac Incorporated	unsecured revolving	5 years	March 29, 2024, or the date commitments are terminated pursuant to an event of default	¥100.0 billion	¥0.0 billion	A rate per annum equal to (a) Tokyo interbank market rate (TIBOR) plus, the alternative applicable TIBOR margin during the availability period from the closing date to the commitment termination date or (b) the TIBOR rate offered by the agent to major banks in yen for the applicable period plus, the applicable alternative TIBOR margin during the term out period	No later than March 29, 2024	.30% to .50%, depending on the Parent Company's debt ratings as of the date of determination	General corporate purposes, including a capital contingency plan for the operations of the Parent Company
Aflac Incorporated and Aflac	unsecured revolving	5 years	November 18, 2024, or the date commitments are terminated pursuant to an event of default	$1.0 billion	$0.0 billion	A rate per annum equal to, at the Company's option, either, (a) LIBOR adjusted for certain costs or (b) a base rate determined by reference to the highest of (1) the federal funds rate plus 1/2 of 1%, (2) the rate of interest for such day announced by Mizuho Bank, Ltd. as its prime rate, or (3) the eurocurrency rate for an interest period of one month plus 1.00%, in each case plus an applicable margin	No later than November 18, 2024	.085% to .225%, depending on the Parent Company's debt ratings as of the date of determination	General corporate purposes, including a capital contingency plan for the operations of the Parent Company
Aflac Incorporated and Aflac	uncommitted bilateral	None specified	None specified	$50 million	$0 million	A rate per annum equal to, at the Parent Company's option, either (a) a eurocurrency rate determined by reference to the agent's LIBOR for the interest period relevant to such borrowing or (b) the base rate determined by reference to the greater of (i) the prime rate as determined by the agent, and (ii) the sum of 0.50% and the federal funds rate for such day	Up to 3 months	None	General corporate purposes
Aflac(1)	uncommitted revolving	364 days	November 30, 2020	$250 million	$0 million	USD three-month LIBOR plus 75 basis points per annum	3 months	None	General corporate purposes
Aflac Incorporated(1)	uncommitted revolving	364 days	April 2, 2021	¥50.0 billion	¥0.0 billion	Three-month TIBOR plus 70 basis points per annum	3 months	None	General corporate purposes
Aflac Incorporated(1)	uncommitted revolving	364 days	November 25, 2020	¥50.0 billion	¥0.0 billion	Three-month TIBOR plus 70 basis points per annum	3 months	None	General corporate purposes
Aflac New York(1)	uncommitted revolving	364 days	April 7, 2021	$25 million	$0 million	USD three-month LIBOR plus 75 basis points per annum	3 months	None	General corporate purposes
CAIC(1)	uncommitted revolving	364 days	March 20, 2021	$15 million	$0 million	USD three-month LIBOR plus 75 basis points per annum	3 months	None	General corporate purposes
Tier One Insurance Company(1)	uncommitted revolving	364 days	March 20, 2021	$0.3 million	$0 million	USD three-month LIBOR plus 75 basis points per annum	3 months	None	General corporate purposes
AGV Management Services Japan K.K.(1)	uncommitted revolving	364 days	May 1, 2021	¥500 million	¥350 million	A rate per annum equal to the short-term prime lending rates of banks appearing on the website for the Bank of Japan on the first day of the applicable period	No later than May 1, 2021	None	General corporate purposes

(1) Intercompany credit agreement

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The Company was in compliance with all of the covenants of its notes payable and lines of credit at September 30, 2020. No events of default or defaults occurred during the nine-month period ended September 30, 2020.

For additional information, see Notes 4 and 9 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report.

9.    INCOME TAXES

The Company uses a full year estimated annual effective tax rate to calculate total income tax expense on interim quarters. In addition, the Company discretely recognizes certain other items in the period in which they occur. The estimated annual effective tax rate is calculated as the ratio of projected total income tax expense divided by projected earnings before income taxes for the year. The interim period tax expense (or benefit) is the difference between the year-to-date income tax provision and the amounts reported for the previous interim periods of the year.

The Company’s consolidated effective income tax rate on pretax earnings was (112.9)% and 25.0% for the three-month periods and (30.0)% and 25.5% for the nine-month periods ended September 30, 2020 and 2019, respectively. This combined effective tax rate differs from the U.S. statutory rate primarily due to the release of certain valuation allowances discussed below.

On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security (CARES) Act was signed into law and includes certain income tax provisions relevant to businesses. The Company was required to recognize the effect on the consolidated financial statements in the period the law was enacted, which was the period ended March 31, 2020. For the nine-month period ended September 30, 2020, the CARES Act did not have a material impact on the Company’s consolidated financial statements. At this time, the Company does not expect the impact of the CARES Act to have a material impact on the Company’s consolidated financial statements for the year ended December 31, 2020.

On September 29, 2020, the U.S. Treasury and Internal Revenue Service issued Final and Proposed Regulations which address, among other items, the allocation of insurance expenses in the calculation of the foreign tax credit limitation. These regulations clarify how insurance related expenses are allocated and apportioned for this purpose. The Company had previously established valuation allowances on deferred foreign tax credits due to the uncertainty that previously existed. Under the guidance of these regulations, the Company recognized a one-time income tax benefit of $1.4 billion due to the release of these valuation allowances which were predominantly established on the Company’s deferred foreign tax credit benefits. The Company has determined that this will also reduce its effective tax rate in future periods, subject to any future changes in U.S. tax policy.

10.    SHAREHOLDERS’ EQUITY

The following table is a reconciliation of the number of shares of the Company's common stock for the nine-month periods ended September 30.

(In thousands of shares)	2020	2019
Common stock - issued:
Balance, beginning of period	1,349,309	1,347,540
Exercise of stock options and issuance of restricted shares	1,546	1,650
Balance, end of period	1,350,855	1,349,190
Treasury stock:
Balance, beginning of period	622,516	592,254
Purchases of treasury stock:
Share repurchase program	26,108	23,126
Other	541	589
Dispositions of treasury stock:
Shares issued to AFL Stock Plan	(1,584)	(1,232)
Exercise of stock options	(49)	(382)
Other	(251)	(295)
Balance, end of period	647,281	614,060
Shares outstanding, end of period	703,574	735,130

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Outstanding share-based awards are excluded from the calculation of weighted-average shares used in the computation of basic earnings per share (EPS). The following table presents the approximate number of share-based awards to purchase shares, on a weighted-average basis, that were considered to be anti-dilutive and were excluded from the calculation of diluted earnings per share for the following periods.

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2020		2019		2020		2019
Anti-dilutive share-based awards		592		1		857		8

Share Repurchase Program

During the first nine months of 2020, the Company repurchased 26.1 million shares of its common stock for $1.0 billion as part of its share repurchase program. During the first nine months of 2019, the Company repurchased 23.1 million shares of its common stock for $1.2 billion as part of its share repurchase program. In August 2020, the Company's board of directors authorized the purchase of an additional 100 million shares of its common stock. As of September 30, 2020, a remaining balance of 110.9 million shares of the Company's common stock was available for purchase under share repurchase authorizations by its board of directors.

Reclassifications from Accumulated Other Comprehensive Income

The tables below are reconciliations of accumulated other comprehensive income by component for the following periods.

Changes in Accumulated Other Comprehensive Income

Three Months Ended September 30, 2020
(In millions)	Unrealized Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Investment Securities			Unrealized Gains (Losses) on Derivatives			Pension Liability Adjustment			Total
Balance at June 30, 2020		$	(1,469)		$	8,532		$	(36)		$	(277)		$	6,750
Other comprehensive income (loss) before reclassification		179			995			1			(5)			1,170
Amounts reclassified from accumulated other comprehensive income (loss)		0			(7)			0			4			(3)
Net current-period other comprehensive income (loss)		179			988			1			(1)			1,167
Balance at September 30, 2020		$	(1,290)		$	9,520		$	(35)		$	(278)		$	7,917

All amounts in the table above are net of tax.

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Three Months Ended September 30, 2019
(In millions)	Unrealized Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Investment Securities			Unrealized Gains (Losses) on Derivatives			Pension Liability Adjustment			Total
Balance at June 30, 2019		$	(1,455)		$	8,055		$	(27)		$	(209)		$	6,364
Other comprehensive income (loss) before reclassification		(24)			884			(6)			(2)			852
Amounts reclassified from accumulated other comprehensive income (loss)		0			31			0			4			35
Net current-period other comprehensive income (loss)		(24)			915			(6)			2			887
Balance at September 30, 2019		$	(1,479)		$	8,970		$	(33)		$	(207)		$	7,251

All amounts in the table above are net of tax.

Nine Months Ended September 30, 2020
(In millions)	Unrealized Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Investment Securities			Unrealized Gains (Losses) on Derivatives			Pension Liability Adjustment			Total
Balance at December 31, 2019		$	(1,623)		$	8,548		$	(33)		$	(277)		$	6,615
Cumulative effect of change in accounting principle - ASU 2019-04		0			848			0			0			848
Balance at January 1, 2020		$	(1,623)		$	9,396		$	(33)		$	(277)		$	7,463
Other comprehensive income (loss) before reclassification		333			20			(2)			(18)			333
Amounts reclassified from accumulated other comprehensive income (loss)		0			104			0			17			121
Net current-period other comprehensive income (loss)		333			124			(2)			(1)			454
Balance at September 30, 2020		$	(1,290)		$	9,520		$	(35)		$	(278)		$	7,917

All amounts in the table above are net of tax.

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Nine Months Ended September 30, 2019
(In millions)	Unrealized Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Investment Securities			Unrealized Gains (Losses) on Derivatives			Pension Liability Adjustment			Total
Balance at December 31, 2018		$	(1,847)		$	4,234		$	(24)		$	(212)		$	2,151
Other comprehensive income (loss) before reclassification		368			4,737			(9)			(4)			5,092
Amounts reclassified from accumulated other comprehensive income (loss)		0			(1)			0			9			8
Net current-period other comprehensive income (loss)		368			4,736			(9)			5			5,100
Balance at September 30, 2019		$	(1,479)		$	8,970		$	(33)		$	(207)		$	7,251

All amounts in the table above are net of tax.

The tables below summarize the amounts reclassified from each component of accumulated other comprehensive income into net earnings for the following periods.

Reclassifications Out of Accumulated Other Comprehensive Income

(In millions)	Three Months Ended September 30, 2020
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income			Affected Line Item in the Statements of Earnings
Unrealized gains (losses) on available-for-sale securities		$	13	Net investment gains (losses)
		(6)		Tax (expense) or benefit(1)
		$	7	Net of tax
Amortization of defined benefit pension items:
Actuarial gains (losses)		$	(7)	Acquisition and operating expenses(2)
Prior service (cost) credit		0		Acquisition and operating expenses(2)
		3		Tax (expense) or benefit(1)
		$	(4)	Net of tax
Total reclassifications for the period		$	3	Net of tax

(1) Based on 21% tax rate, with a cumulative adjustment to the first six months of 2020 due to the effects of Final and Proposed Regulations released on September 29, 2020. See Note 9 of the Notes to the Consolidated Financial Statements.

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 12 for additional details).

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(In millions)	Three Months Ended September 30, 2019
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income			Affected Line Item in the Statements of Earnings
Unrealized gains (losses) on available-for-sale securities		$	(41)	Net investment gains (losses)
		10		Tax (expense) or benefit(1)
		$	(31)	Net of tax
Amortization of defined benefit pension items:
Actuarial gains (losses)		$	(5)	Acquisition and operating expenses(2)
Prior service (cost) credit		0		Acquisition and operating expenses(2)
		1		Tax (expense) or benefit(1)
		$	(4)	Net of tax
Total reclassifications for the period		$	(35)	Net of tax

(1) Based on 25% blended tax rate

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 12 for additional details).

(In millions)	Nine Months Ended September 30, 2020
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income			Affected Line Item in the Statements of Earnings
Unrealized gains (losses) on available-for-sale securities		$	(132)	Net investment gains (losses)
		28		Tax (expense) or benefit(1)
		$	(104)	Net of tax
Amortization of defined benefit pension items:
Actuarial gains (losses)		$	(22)	Acquisition and operating expenses(2)
Prior service (cost) credit		0		Acquisition and operating expenses(2)
		5		Tax (expense) or benefit(1)
		$	(17)	Net of tax
Total reclassifications for the period		$	(121)	Net of tax

(1) Based on 21% tax rate

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 12 for additional details).

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(In millions)	Nine Months Ended September 30, 2019
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income			Affected Line Item in the Statements of Earnings
Unrealized gains (losses) on available-for-sale securities		$	1	Net investment gains (losses)
		0		Tax (expense) or benefit(1)
		$	1	Net of tax
Amortization of defined benefit pension items:
Actuarial gains (losses)		$	(12)	Acquisition and operating expenses(2)
Prior service (cost) credit		0		Acquisition and operating expenses(2)
		3		Tax (expense) or benefit(1)
		$	(9)	Net of tax
Total reclassifications for the period		$	(8)	Net of tax

(1) Based on 26% blended tax rate

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 12 for additional details).

11.    SHARE-BASED COMPENSATION

In June 2020, the Company transitioned from E*Trade Financial Corporate Services, Inc. to Fidelity Management Trust Company as the trustee and recordkeeper of the Company's long-term share-based compensation plans.

As of September 30, 2020, the Company has outstanding share-based awards under the Aflac Incorporated Long-Term Incentive Plan (the Plan). Share-based awards are designed to reward employees for their long-term contributions to the Company and provide incentives for them to remain with the Company. The number and frequency of share-based awards are based on competitive practices, operating results of the Company, government regulations, and other factors.

The Plan, as amended on February 14, 2017, allows for a maximum number of shares issuable over its term of 75 million shares including 38 million shares that may be awarded in respect of awards other than options or stock appreciation rights. If any awards granted under the Plan are forfeited or are terminated before being exercised or settled for any reason other than tax forfeiture, then the shares underlying the awards will again be available under the Plan.

The Plan allows awards to Company employees for incentive stock options (ISOs), non-qualifying stock options (NQSOs), restricted stock, restricted stock units, and stock appreciation rights. Non-employee directors are eligible for grants of NQSOs, restricted stock, and stock appreciation rights. As of September 30, 2020, approximately 37.9 million shares were available for future grants under this plan. The ISOs and NQSOs have a term of 10 years, and the share-based awards generally vest upon time-based conditions or time and performance-based conditions. Time-based vesting generally occurs after three years. Performance-based vesting conditions generally include the attainment of goals related to Company financial performance. As of September 30, 2020, the only performance-based awards issued and outstanding were restricted stock awards and units.

Stock options and stock appreciation rights granted under the amended Plan have an exercise price of at least the fair market value of the underlying stock on the grant date and have an expiration date no later than 10 years from the grant date. Time-based restricted stock awards, restricted stock units and stock options granted after January 1, 2017 generally vest on a ratable basis over three years, and awards granted prior to the amendment vest on a three years cliff basis. The Compensation Committee of the Board of Directors has the discretion to determine vesting schedules.

Share-based awards granted to U.S.-based grantees are settled with authorized but unissued Company stock, while those issued to Japan-based grantees are settled with treasury shares.

The following table provides information on stock options outstanding and exercisable at September 30, 2020.

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	Stock Option Shares (in thousands)		Weighted-Average Remaining Term (in years)		Aggregate Intrinsic Value (in millions)			Weighted-Average Exercise Price Per Share
Outstanding		3,288		4.0		$	21		$	30.18
Exercisable		3,229		3.9		21			30.08

The Company received cash from the exercise of stock options in the amount of $9 million during the first nine months of 2020, compared with $36 million in the first nine months of 2019. The tax benefit realized as a result of stock option exercises and restricted stock releases was $19 million in the first nine months of 2020, compared with $26 million in the first nine months of 2019.

As of September 30, 2020, total compensation cost not yet recognized in the Company's consolidated financial statements related to restricted stock awards was $46 million, of which $20 million (1 million shares) was related to restricted stock awards with a performance-based vesting condition. The Company expects to recognize these amounts over a weighted-average period of approximately 1.7 years. There are no other contractual terms covering restricted stock awards once vested.

The following table summarizes restricted stock activity during the nine-month period ended September 30, 2020.

(In thousands of shares)	Shares		Weighted-Average Grant-Date Fair Value Per Share
Restricted stock at December 31, 2019	2,715	(1)		$	43.74
Granted in 2020	1,494			45.97
Canceled in 2020	(58)			49.70
Vested in 2020	(1,556)			35.20
Restricted stock at September 30, 2020	2,595			$	48.69

(1) The balance has been adjusted to include dividends

In February 2020, the Company granted 409 thousand performance-based stock awards, which are contingent on the achievement of the Company's financial performance metrics and its market-based conditions. On the date of grant, the Company estimated the fair value of restricted stock awards with market-based conditions using a Monte Carlo simulation model. The model discounts the value of the stock at the assumed vesting date based on the risk-free interest rate. Based on estimates of actual performance versus the vesting thresholds, the calculated fair value percentage pay-out estimate will be updated each quarter.

The Company uses third-party analyses to assist in developing the assumptions used in, as well as calibrating, a Monte Carlo simulation model. The Company is responsible for determining the assumptions used in estimating the fair value of its share-based payment awards.

For additional information on the Company's long-term share-based compensation plans and the types of share-based awards, see Note 12 of the Notes to the Consolidated Financial Statements included in the 2019 Annual Report.

12.    BENEFIT PLANS

The Company has funded defined benefit plans in Japan and the U.S., however the U.S. plan was frozen to new participants effective October 1, 2013. The Company also maintains non-qualified, unfunded supplemental retirement plans that provide defined pension benefits in excess of limits imposed by federal tax law for certain Japanese, U.S. and former employees, however the U.S. plan was frozen to new participants effective January 1, 2015. U.S. employees who are not participants in the defined benefit plan receive a nonelective 401(k) employer contribution.

The Company provides certain health care benefits for eligible U.S. retired employees, their beneficiaries and covered dependents (other postretirement benefits). The health care plan is contributory and unfunded. Effective January 1, 2014, employees eligible for benefits included the following: (1) active employees whose age plus service, in years, equaled or exceeded 80 (rule of 80); (2) active employees who were age 55 or older and have met the 15 years of service requirement; (3) active employees who would meet the rule of 80 in the next 5 years; (4) active employees who were age

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55 or older and who would meet the 15 years of service requirement within the next 5 years; and (5) current retirees. For certain employees and former employees, additional coverage is provided for all medical expenses for life.

Pension and other postretirement benefit expenses are included in acquisition and operating expenses in the consolidated statement of earnings, which includes other components of net periodic pension cost and postretirement costs (other than service costs) of $6 million for the three-month periods and $18 million for the nine-month periods ended September 30, 2020 and 2019, respectively. Total net periodic cost includes the following components:

	Three Months Ended September 30,
	Pension Benefits												Other
	Japan						U.S.						Postretirement Benefits
(In millions)	2020			2019			2020			2019			2020			2019
Components of net periodic benefit cost:
Service cost		$	6		$	6		$	7		$	5		$	0		$	0
Interest cost		1			1			9			10			0			0
Expected return on plan assets		(2)			(2)			(9)			(8)			0			0
Amortization of net actuarial loss		1			1			6			3			0			1
Net periodic (benefit) cost		$	6		$	6		$	13		$	10		$	0		$	1

	Nine Months Ended September 30,
	Pension Benefits												Other
	Japan						U.S.						Postretirement Benefits
(In millions)	2020			2019			2020			2019			2020			2019
Components of net periodic benefit cost:
Service cost		$	18		$	16		$	21		$	17		$	0		$	0
Interest cost		3			4			25			28			1			1
Expected return on plan assets		(6)			(5)			(27)			(22)			0			0
Amortization of net actuarial loss		3			3			18			8			1			1
Net periodic (benefit) cost		$	18		$	18		$	37		$	31		$	2		$	2

During the nine months ended September 30, 2020, Aflac Japan contributed approximately $28 million (using the weighted-average yen/dollar exchange rate for the nine-month period ended September 30, 2020) to the Japanese funded defined benefit plan, and Aflac U.S. did not make a contribution to the U.S. funded defined benefit plan.

For additional information regarding the Company's Japanese and U.S. benefit plans, see Note 14 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report.

13.    COMMITMENTS AND CONTINGENT LIABILITIES

Effective for 2020, the Company entered into an outsourcing agreement with an information technology and data services company to provide application maintenance and development services for its Japanese operation. As of September 30, 2020, the agreement has a remaining term of five years and an aggregate remaining cost of ¥14.5 billion ($137 million using the September 30, 2020, exchange rate).

The Company is a defendant in various lawsuits considered to be in the normal course of business. Members of the Company's senior legal and financial management teams review litigation on a quarterly and annual basis. The final results of any litigation cannot be predicted with certainty. Although some of this litigation is pending in states where large punitive damages, bearing little relation to the actual damages sustained by plaintiffs, have been awarded in recent years, the Company believes the outcome of pending litigation will not have a material adverse effect on its financial position, results of operations, or cash flows.

See Note 3 of the Notes to the Consolidated Financial Statements for details on certain investment commitments.

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Guaranty Fund Assessments

The U.S. insurance industry has a policyholder protection system that is monitored and regulated by state insurance departments. These life and health insurance guaranty associations are state entities (in all 50 states as well as Puerto Rico and the District of Columbia) created to protect policyholders of an insolvent insurance company. All insurance companies (with limited exceptions) licensed to sell life or health insurance in a state must be members of that state’s guaranty association. Under state guaranty association laws, certain insurance companies can be assessed (up to prescribed limits) for certain obligations to the policyholders and claimants of impaired or insolvent insurance companies that write the same line or similar lines of business.

In 2009, the Pennsylvania Insurance Commissioner placed long-term care insurer Penn Treaty Network America Insurance Company and its subsidiary American Network Insurance Company (collectively referred to as Penn Treaty), neither of which is affiliated with Aflac, in rehabilitation and petitioned a state court for approval to liquidate Penn Treaty. A final order of liquidation was granted by a recognized judicial authority on March 1, 2017, and as a result, Penn Treaty is in the process of liquidation. The Company estimated and recognized the impact of its share of guaranty fund assessments resulting from the liquidation using a discounted rate of 4.25%. The Company recognized a discounted liability for the assessments of $62 million (undiscounted $94 million), offset by discounted premium tax credits of $48 million (undiscounted $74 million), for a net $14 million impact to net income in the quarter ended March 31, 2017. The Company paid a majority of these assessments by September 30, 2020. The Company used the cost estimate provided as of the liquidation date by the National Organization of Life and Health Guaranty Associations (NOLHGA) to calculate its estimated assessments and tax credits.

Guaranty fund assessments for the nine-month period ended September 30, 2020 were immaterial.

14.    SUBSEQUENT EVENTS

On October 26, 2020, the Company entered into an agreement to purchase approximately $200 million in newly issued common stock of Trupanion, Inc., a provider of medical insurance for pets in the United States and Canada. The Company closed on approximately $60 million of this transaction on October 26, 2020. Subject to regulatory approvals and customary closing conditions, the remainder of this transaction is expected to close in the fourth quarter of 2020 and result in the Company owning approximately 9% of the outstanding common stock of Trupanion, Inc. The Company also announced that it has entered into an alliance agreement with Trupanion, Inc. to sell pet insurance on an exclusive basis in the United States, subject to certain exceptions, and to explore on an exclusive basis potential distribution opportunities for pet insurance in Japan.

In October 2020, Aflac U.S. made a $100 million contribution to the U.S. funded defined benefit plan.

In September 2020, the Company announced a voluntary separation program for certain U.S. employees. The program provides eligible employees with a severance package, including twelve months of salary, the employee's targeted bonus payout for 2020 and one year of Consolidated Omnibus Budget Reconciliation Act (COBRA) or retiree medical, if eligible. The volunteer period opened on September 15, 2020 and closed October 1, 2020. Employees accepted into this program were notified in October 2020 and the Company expects transitions to be completed by December 31, 2020. The Company expects to take a one-time severance charge related to the program in the fourth quarter of 2020 of approximately $45 million.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (MD&A)

FORWARD-LOOKING INFORMATION

The Private Securities Litigation Reform Act of 1995 provides a safe harbor to encourage companies to provide prospective information, so long as those informational statements are identified as forward-looking and are accompanied by meaningful cautionary statements identifying important factors that could cause actual results to differ materially from those included in the forward-looking statements. Aflac Incorporated and its subsidiaries desire to take advantage of these provisions. This report contains cautionary statements identifying important factors that could cause actual results to differ materially from those projected herein, and in any other statements made by Company officials in communications with the financial community and contained in documents filed with the Securities and Exchange Commission (SEC). Forward-looking statements are not based on historical information and relate to future operations, strategies, financial results or other developments. Furthermore, forward-looking information is subject to numerous assumptions, risks and uncertainties. In particular, statements containing words such as the ones listed below or similar words, as well as specific projections of future results, generally qualify as forward-looking. The Company undertakes no obligation to update such forward-looking statements.

• expect	• anticipate	• believe	• goal	• objective
• may	• should	• estimate	• intends	• projects
• will	• assumes	• potential	• target	• outlook

The Company cautions readers that the following factors, in addition to other factors mentioned from time to time, could cause actual results to differ materially from those contemplated by the forward-looking statements:

•the effects of COVID-19, and any resulting economic effects and government interventions, on the Company's business and financial results

•ability to attract and retain qualified sales associates, brokers, employees, and distribution partners

•events related to the Japan Post investigation and other matters

•competitive environment and ability to anticipate and respond to market trends

•difficult conditions in global capital markets and the economy

•deviations in actual experience from pricing and reserving assumptions

•ability to continue to develop and implement improvements in information technology systems

•defaults and credit downgrades of investments

•exposure to significant interest rate risk

•concentration of business in Japan

•limited availability of acceptable yen-denominated investments

•tax rates applicable to the Company may change

•failure to comply with restrictions on policyholder privacy and information security

•interruption in telecommunication, information technology and other operational systems, or a failure to maintain the security, confidentiality or privacy of sensitive data residing on such systems

•catastrophic events including, but not necessarily limited to, epidemics, pandemics (such as the coronavirus COVID-19), tornadoes, hurricanes, earthquakes, tsunamis, war or other military action, terrorism or other acts of violence, and damage incidental to such events

•ability to protect the Aflac brand and the Company's reputation

•extensive regulation and changes in law or regulation by governmental authorities

•foreign currency fluctuations in the yen/dollar exchange rate

•decline in creditworthiness of other financial institutions

•significant valuation judgments in determination of amount of impairments taken on the Company's investments

•U.S. tax audit risk related to conversion of the Japan branch to a subsidiary

•subsidiaries' ability to pay dividends to the Parent Company

•decreases in the Company's financial strength or debt ratings

•inherent limitations to risk management policies and procedures

•concentration of the Company's investments in any particular single-issuer or sector

•differing judgments applied to investment valuations

•ability to effectively manage key executive succession

•changes in accounting standards

•level and outcome of litigation

•allegations or determinations of worker misclassification in the United States

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MD&A OVERVIEW

MD&A is intended to inform the reader about matters affecting the financial condition and results of operations of Aflac Incorporated and its subsidiaries for the three- and nine-month periods ended September 30, 2020 and 2019, respectively. Results of operations for interim periods are not necessarily indicative of results for the entire year. As a result, the following discussion should be read in conjunction with the consolidated financial statements and notes that are included in the Company's annual report on Form 10-K for the year ended December 31, 2019 (2019 Annual Report). In this MD&A, amounts may not foot due to rounding. For additional information on the Company’s performance measures included in this MD&A, see the Glossary of Selected Terms found directly following Part II. Other Information. 

This MD&A is divided into the following sections:

	Page
Executive Summary	72
Results of Operations	78
Investments	92
Deferred Policy Acquisition Costs	100
Policy Liabilities	101
Benefit Plans	100
Policyholder Protection	101
Off-Balance Sheet Arrangements	101
Liquidity and Capital Resources	101
Critical Accounting Estimates	107

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EXECUTIVE SUMMARY

Company Overview

Aflac Incorporated (the Parent Company) and its subsidiaries (collectively, the Company) provide financial protection to more than 50 million people worldwide. The Company’s principal business is providing supplemental health and life insurance products with the goal to provide customers the best value in supplemental insurance products in the United States (U.S.) and Japan. The Company's insurance business consists of two reporting segments: Aflac Japan and Aflac U.S. The Parent Company’s primary insurance subsidiaries are Aflac Life Insurance Japan Ltd. in Japan (Aflac Japan) and American Family Life Assurance Company of Columbus (Aflac); Continental American Insurance Company (CAIC), branded as Aflac Group Insurance (AGI); American Family Life Assurance Company of New York (Aflac New York); Tier One Insurance Company (TOIC) and Argus Dental & Vision, Inc. (Argus), which provides a platform for Aflac Dental and Vision in the U.S. (collectively, Aflac U.S.).

COVID-19

On March 11, 2020, the World Health Organization declared the COVID-19 outbreak a global pandemic. The impact of COVID-19 on the Company continues to evolve, and its future effects remain uncertain. The Company continues to closely monitor the effects and risks of COVID-19 to assess its impact on economic conditions in Japan and the U.S. and on the Company's business, financial condition, results of operations, liquidity and capital position in a number of ways, and may cause changes to estimates of future earnings, capital deployment, regulatory capital position, segment dividend payout ratios and other guidance the Company provided under 2020 Outlook in Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations of the 2019 Annual Report.

The Company’s efforts and other developments are outlined below.

•Liquidity and Capital Resources

The Company entered the crisis in a strong capital and liquidity position, having maintained capital ratios in Japan and the U.S. at a level designed to absorb a degree of market volatility. To further support liquidity and capital resources, the Parent Company, in March 2020, issued four series of senior notes totaling ¥57.0 billion and, in April 2020, issued $1.0 billion in senior notes through public debt offerings under its U.S. shelf registration statement. Accordingly, as of September 30, 2020 the Company held approximately $5.6 billion in cash and cash equivalents for stress conditions, which includes the Parent Company's target minimum amount of $2.0 billion held to provide a capital buffer and liquidity support at the holding company. Even after these debt offerings, the Company’s leverage ratio remains at levels that the Company believes are adequate to maintain current ratings and leave capacity for further debt issuances. The Company has available liquidity in its unsecured revolving credit facilities of $1 billion and ¥100.0 billion, respectively, and currently has no borrowings under either of these facilities. In April 2020, Aflac increased its internal limit for Federal Home Loan Bank of Atlanta (FHLB) borrowings to $800 million, $300 million of which the Company has designated to be used for short-term liquidity needs and subject to qualified collateral availability and other conditions. The Company has the ability to adjust cash flow management from other sources of liquidity including reinvestment cash flows and selling investments.

The Company remains committed to prudent liquidity and capital management and is taking a tactical approach to capital allocation. In terms of repurchase guidance, the Company remains in the market and is being tactical in its approach to repurchasing its stock. The Company believes that this approach will allow it to increase or decrease repurchase activity depending on how the pandemic and market conditions evolve.

The Company is committed to maintaining a strong Aflac Japan solvency margin ratio (SMR) and Aflac U.S. risk-based capital (RBC) ratios. While the SMR is particularly sensitive to market volatility resulting from widening of credit spreads, both SMR and RBC are sensitive to credit downgrades and defaults. The Company has capital tools available to increase SMR and RBC including the reduction of subsidiary dividends paid to the Parent Company by its insurance subsidiaries and Parent Company capital contributions to insurance subsidiaries sourced through cash on hand, proceeds from debt issuances or by drawing on the revolving credit facilities noted above. For example, the Parent Company made a capital contribution of $150 million to CAIC in May 2020. The Company also has a committed reinsurance facility in the amount of approximately ¥120 billion of reserves that could be deployed to support SMR. Additionally, Aflac Japan has to date reduced dividends it provides to the Parent Company in 2020 by ¥75 billion compared to initial 2020 plans. Taking into consideration the strong liquidity position of the Parent Company as well as the continuing development of economic conditions in Japan and the U.S., the Company currently plans to defer the payment of further subsidiary dividends to the Parent

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Company until the fourth quarter of 2020. Further dividend delays or reductions may be undertaken as the Company continues to monitor developments. The Company intends to maintain the RBC ratio for Aflac in the 525% to 575% range for 2020.

As a result of market volatility, the Company has made tactical adjustments to its foreign currency-hedging program in Aflac Japan to mitigate hedging cost and settlement risk while maintaining a strong SMR. Aflac Japan maintains a collar program on a portion of its US dollar program to mitigate against more extreme moves in foreign exchange rates and therefore support SMR. In the first quarter of 2020, the Company reduced the size of the collar program by approximately $3 billion to $9 billion and marginally widened the collars. While these adjustments will moderately increase the Company's exposure to SMR volatility, the Company believes that they will also reduce its exposure to pricing volatility and the related risk of negative settlements should there be a material weakening in the yen. Depending on further developments, including the possibility of further market volatility, there may be additional costs associated with maintaining the collar program. The Company is evaluating other adjustments, including the possibility of hedging additional U.S dollar-denominated investments. See the Liquidity and Capital Resources section of this MD&A for additional information regarding other potential sources of liquidity and capital resources.

•Investment Portfolio

The Company's investment portfolio was well-positioned entering the crisis, and the Company continues to follow its strategy of investing primarily in fixed maturity securities to generate a reliable stream of income. Fundamental credit analysis and de-risking activity in prior periods contributed to the current quality of the Company’s investments. The Company continued with de-risking activity in the third quarter, reducing positions in the portfolios seen as more vulnerable in the current environment. Although economic and market conditions improved throughout much of the quarter, the Company remains cautious about the continued path of the recovery and the potential longer term impacts on certain sectors most vulnerable to the impacts of the pandemic. The Company continues seeking ways to improve the health of the portfolio through de-risking and other repositioning actions. Certain investments have been adversely impacted with credit rating downgrades and increased price volatility, including investments in issuers that faced an immediate and severe impact such as those in travel and lodging, leisure, non-emergency medical and energy sectors. The Company continues working with issuers to provide temporary relief of terms by providing payment deferrals and other modifications where the Company believes it improves its overall position. For additional information on these loan modifications, see Note 3 of the Notes to the Consolidated Financial Statements.

Markets have stabilized from the extreme volatility seen at the outset of the crisis, although issuers continue to be affected by reduced business activity and consumer demand. Volatility in oil prices and reduction in global energy demand continue to adversely impact issuers in the energy sector. Due to the decline in U.S. interest rates, and limitations on the availability of new investments in certain private asset classes such as middle market loans, commercial mortgages and transitional real estate, net investment income may be adversely impacted over time from lower reinvestment rates for fixed maturity investments and lower interest on floating rate assets. Net investment income may not fully reflect activity during the quarter because certain investments, such as private limited partnerships, typically report their results to the Company one to three months following the end of the reporting period. Therefore, the increase in net investment income from these investments in the third quarter reflects to some extent price increases in publicly traded equities during the second quarter. There are a number of factors that impact private limited partnership income, but the Company expects public equity markets to be a favorable driver to this component of net investment income in the fourth quarter, based on the positive performance of leading equity indices during the third quarter, such as the S&P 500 and Russell 2000. The Company continues to make tactical adjustments to its investment portfolios in response to the crisis, and continues to assess its investment strategy and asset allocation to identify additional tactical adjustments that may be necessary due to the continuing recession.

•Crisis Management

The Company has crisis command centers set up in Japan and the U.S. These command centers are generally utilized for any type of crisis, including natural disasters and cybersecurity events. The command centers participate in regular updates to the Company's leadership regarding Japan and U.S. government and regulatory actions, operations, employee policies and conditions and distribution status. In addition, capital market, central bank and government stimulus updates are provided, as well as updates on cybersecurity, including with respect to the Company's remote workforce. Moreover, the Company's financial leadership group meets more frequently and has focused on the capital markets, capital and liquidity position, stress testing and any defensive actions that may be necessary as the crisis unfolds.

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•Aflac Japan initiatives

In February 2020, Aflac Japan began to implement actions such as working from home, staggered work hours, limitations on the number of personnel attending in-person meetings and restrictions on traveling between buildings and floors in Aflac Japan worksites. On April 7, 2020, the Japan government declared a state of emergency in seven prefectures including Tokyo and Osaka and requested that companies in these prefectures reduce the number of employees coming into the office by 70% or more. Accordingly, Aflac Japan implemented increasing levels of remote working levels for its work force toward the requested level. On April 16, 2020, the state of emergency was expanded nationwide in Japan, and on May 25, 2020, the state of emergency was lifted nationwide. As of September 30, 2020, Aflac Japan has approximately 50% of its workforce working from home. Aflac Japan is evaluating return to the office measures; however, Aflac Japan anticipates that the remote configuration could remain for an indefinite period of time without materially impacting operations.

Aflac Japan has announced several additional actions taken for its employees including travel restrictions and extended paid leave.

Aflac Japan remains focused on generating new business through direct mail made to existing and prospective customers. In addition, Aflac Japan is promoting digital and web-based sales to groups and introduced a new system that enables smartphone-based insurance application by allowing the customer and an Aflac operator to see the same screen through their smartphones. Face-to-face sales have been challenged and are having an impact on sales results. During the third quarter, Aflac Japan experienced a sales decline of 32.0% on a yen basis, compared to the third quarter of 2019, due to the effects of the pandemic. See the Aflac Japan Segment of this MD&A for additional information regarding sales in the Japan Post channel and the strategic alliance with Japan Post.

Aflac Japan has also followed the guidance of the FSA in terms of treating customers with care, ensuring ease and timeliness of claims payments and extended coverage for temporary medical facilities and telemedicine in certain circumstances, and waiver of interest on certain policyholder loans. Aflac Japan initially extended a six-month grace period on premium payments, and in June 2020, the grace period for premiums due through September 30, 2020 was extended to April 30, 2021. Policyholders are required to file for relief through this extension. On April 18, 2020, Aflac Japan announced that it will pay certain accidental death and disability benefits in the event of a death directly caused by COVID-19.

To assist with the COVID-19 pandemic, Aflac Japan has donated ¥500 million to the Japan Medical Associations and to identified municipalities where Aflac Japan has operations.

•Aflac U.S. and Corporate and Other initiatives

The Parent Company and Aflac U.S. began to implement Company mandates including restrictions on travel and in-person meetings applicable to U.S. employees beginning in February 2020 and required work from home directives across their U.S. work force in March 2020. As of September 30, 2020, approximately 95% of employees were working remotely, with 100% of employees working remotely in certain areas including New York City, including all investment employees based in the U.S. The Company currently anticipates that a return to the worksite for U.S. based employees of the Parent Company and Aflac U.S. will be conducted in phases beginning no sooner than early 2021, subject to factors including the availability of treatments and vaccines, the return schedule of school systems and the availability of child care, the number of COVID–19 cases and the COVID–19 replication rate in areas of the U.S. where the Company has significant operations. However, Aflac U.S. anticipates that the remote configuration could remain for an indefinite period of time without materially impacting operations. The Parent Company and Aflac U.S. continue to maintain employee and worksite safety measures including travel restrictions, building access restrictions and in-person meeting restrictions.

Aflac U.S. has announced several actions taken for its employees. These include a commitment to cover the costs of COVID-19 testing and extended paid leave in certain circumstances.

Aflac U.S. is focused on supporting its agency channel, most of whom are small businesses, by offering zero-interest loans and cash stipends in lieu of canceled recognition trips.

Aflac U.S. policy sales, enrollment and agent recruiting functions are highly dependent upon face-to-face interaction between independent agents and brokers with prospective and new customers and agents.

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Opportunities for such interaction have been significantly reduced by reactions to the pandemic, such as social distancing, shelter in place orders and work from home initiatives. In addition, licensure of newly recruited agents has been delayed in some states due to the unavailability or difficulty of temporary licenses or online training. Further, despite government stimulus measures, the economic effects of the pandemic on prospective and existing customers is still largely unknown. Similar to Aflac Japan, the Aflac U.S. sales team is working to adjust its sales approach given the reduction in face-to-face sales. Key elements to this approach include realizing sales at the worksite through an enrollment call center, video enrollment through co-browsing and self-enrollment. The traditional agent sales team is also using virtual recruiting and training through video conferencing in order to maintain or increase the recruiting pipeline. The Aflac U.S. broker sales team is focused on product enhancements due to COVID-19 as well as leveraging technology based solutions to drive enrollment. Finally, Aflac U.S. is in its second year of the build-out of the Consumer Markets business for the digital direct-to-consumer sale of insurance and sales made through that platform have continued to grow. 

Face-to-face sales have been challenged and are having an impact on sales results. During the three- and nine-month periods ended September 30, 2020, Aflac U.S. experienced a sales decline of 35.7% and 32.7%, respectively, compared to the same respective periods in 2019, reflecting the impacts of the pandemic. The Aflac U.S. benefit ratio decreased in the three-month period ended September 30, 2020, as compared to the same period in 2019; however, the ratio increased in comparison to the second quarter of 2020, which management believes may indicate the beginning of a return to levels seen over the past several years. The Company expanded a previously piloted wellness initiative in the third quarter, using digital and direct account engagement to raise awareness among policyholders as to the availability of valuable wellness benefits. The Company estimates this effort had approximately $14 million impact on incurred claim in the third quarter.

Aflac U.S. is encouraging policyholders who are displaying COVID-19 symptoms to seek treatment and is paying wellness benefits on applicable policies for COVID-19 tests, when completed claims are submitted. Aflac U.S. is also providing coverage for treatment in temporary facilities and by telemedicine in certain circumstances.

During the first nine months of 2020, Aflac U.S. took steps to comply with COVID-19-related directives issued by state regulatory authorities, including those requiring or requesting premium grace periods. As of September 30, 2020, premium grace periods remained in effect in 13 states. Although aggregate policy lapses decreased from the prior year, Aflac U.S. experienced an increase in policy lapses in the third quarter of 2020 in certain states where premium grace periods expired and government stimulus measures discussed below were not renewed or initiated. If the premium grace periods continue to expire throughout 2020, Aflac U.S. would expect an increase in lapse rates.

In light of the anticipated combined effects of reduced sales and persistency, Aflac U.S. currently expects 2020 earned premium results in the range of flat to a decline of 3% compared with 2019. In September 2020, the Company announced a voluntary separation program for certain U.S. employees. The program provides eligible employees with a severance package, including twelve months of salary, the employee's targeted bonus payout for 2020 and one year of Consolidated Omnibus Budget Reconciliation Act (COBRA) or retiree medical, if eligible. The volunteer period opened on September 15, 2020 and closed October 1, 2020. Employees accepted into this program were notified in October 2020 and the Company expects transitions to be completed by December 31, 2020. The Company expects to take a one-time severance charge related to the program in the fourth quarter of 2020 of approximately $45 million.

To date, the Parent Company has contributed $6 million to organizations that are providing assistance for health care workers assisting with the COVID-19 pandemic.

•Major government initiatives

Government authorities in Japan and the U.S. have implemented several initiatives in response to the COVID-19 pandemic, including actions designed to mitigate the adverse health effects of the virus and those designed to provide broad-based relief and economic support to all aspects of the economy.

On April 7, 2020, Prime Minister Abe issued a state of emergency declaration targeting seven prefectures based on the revised Act on Special Measures for Pandemic Influenza and New Infectious Diseases Preparedness and Response. On April 16, 2020, the state of emergency was expanded to all 47 prefectures. The state of emergency was lifted in phases, with 39 prefectures released on May 14, 2020, three additional prefectures released on May 21, and the state of emergency lifted nationwide on May 25. On June 19, 2020, restrictions on intraprefecture travel were lifted. Japanese Prime Minister Shinzo Abe announced his retirement on August 28, 2020. Chief

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Cabinet Secretary Yoshihide Suga was elected Liberal Democratic Party President on September 14, 2020 and elected Prime Minister on September 16, 2020. Prime Minister Suga has indicated his intention to further Abe's policies, including efforts to counter the effects of COVID-19.

The Financial Services Agency (FSA) has also requested that financial service providers respond appropriately while continuing their essential operations. This request includes insurance companies, which have been asked to continue essential operations such as benefits and claims payment, including policyholder loans. Moreover, following the expansion of the impact of COVID-19, the FSA requested insurance companies to consider flexible interpretation and application of insurance policy provisions and measures required for products from the standpoint of protecting policyholders. In accordance with the FSA’s request, Aflac Life Insurance Japan Ltd. implemented a measure to pay accidental death benefits and accidental serious disability benefits under its accidental death benefit rider, etc. in cases of death or specified serious disabilities from COVID-19.

On April 20, 2020, the Cabinet of Japan approved ¥117 trillion or more than 20% of GDP in emergency stimulus measures, including various tax measures to address the financial difficulties that businesses are facing. The stimulus package includes measures decided earlier in February and March as emergency COVID-19 response and the “Comprehensive Economic Measures to Create a Future with Security and Growth” formulated in December 2019. The package is divided into measures covering two stages of the COVID-19 outbreak: the “emergency support phase,” and the “V-shaped recovery phase.” The emergency support phase is described as covering until a noticeable slowdown in the spread of COVID-19 and provides cash benefits of ¥100 thousand per person to Japanese citizens and other measures that focus on improvements to the medical service system. The "V-shaped recovery phase" focuses on a campaign to boost demand after the pandemic abates, as well as to reinforce Japan’s economic foundations through measures such as supply-chain reforms and promotion of telework.

On May 27, 2020, the Cabinet of Japan approved a second ¥117 trillion stimulus package. The Diet passed a supplementary budget to fund the package on June 12, 2020. The second stimulus package is intended to help small and mid-sized businesses fund leave allowances for furloughed workers and provides rent assistance for business operations.

In the U.S., statewide shelter in place or stay at home orders have been lifted although reopening plans have been paused or reversed in certain states experiencing an increase in cases.

The U.S. government took action in response to the COVID-19 pandemic by providing broad-based relief and economic support to all aspects of the economy.

The Families First Coronavirus Response Act was signed into law on March 18, 2020 with the goal of mitigating the financial impact of the COVID-19 on states, territories, the uninsured, the unemployed, workers and individuals who rely on food assistance, such as children and low-income seniors.

The Coronavirus Aid, Relief, and Economic Security (CARES) Act, was signed into law on March 7, 2020 and was designed to provide approximately $2 trillion in financial stimulus in the form of financial aid to individuals, businesses, nonprofits, states, and municipalities. Among other measures, the CARES Act provided for $260 billion in expanded unemployment benefits and $290 billion of direct payments to individuals, and established a $349 billion Paycheck Protection Program (PPP) providing for loans to small businesses, nonprofits, and veteran’s organizations with 500 or fewer employees. On April 24, 2020, an additional $320 billion was allocated to the PPP, including $10 billion for administrative costs and $60 billion allocated to small lenders and community banks, and on July 4, 2020, the application deadline for the PPP was extended from June 30, 2020 to August 8, 2020. The CARES Act also included a five-year net operating loss (NOL) carryback, payroll tax relief and other significant provisions for businesses. Section 4013 of the CARES Act gives entities temporary relief from the accounting and disclosure requirements for troubled debt restructurings (TDRs) under ASC 310-40 in certain situations. On April 7, 2020, certain regulatory banking agencies, in consultation with the Financial Accounting Standards Board (FASB), issued the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (Interagency statement) applicable for all entities, which offers practical expedients for evaluating whether loan modifications in response to the COVID-19 pandemic are treated as TDRs. The Company has applied GAAP relief under Section 4013 of the CARES Act and the Interagency statement with respect to certain qualifying loan modifications. See Notes 1 and 3 of Notes to the Consolidated Financial Statements for additional details.

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The Federal Reserve has also taken various actions in an effort to support the economy and markets in response to heightened volatility and uncertainty. These actions include reducing by 1.5% each the rate that it charges for direct loans to banks, as well as the target for the rate banks charge each other for overnight funds (federal funds rate); initiating quantitative easing with no stated cap on purchases; committing to purchase U.S. Treasury securities, agency mortgage-backed and agency commercial mortgaged-backed securities; re-establishing the Term Asset-Backed Securities Loan Facility (TALF) originally launched in 2009, through which it will lend to holders of AA-rated asset-backed securities; and establishing facilities to support purchase of corporate bonds from large investment-grade companies.

Performance Highlights

Total revenues were $5.7 billion in the third quarter of 2020, compared with $5.5 billion in the third quarter of 2019. Net earnings were $2.5 billion, or $3.44 per diluted share in the third quarter of 2020, compared with $777 million, or $1.04 per diluted share, in the third quarter of 2019. The increase in net earnings and net earnings per diluted share in the third quarter of 2020 reflects a $1.4 billion benefit primarily from the release of valuation allowances on deferred foreign tax credits, which were allowed due to newly released U.S. tax regulations.

Total revenues were $16.2 billion in the first nine months of 2020, compared with $16.7 billion in the first nine months of 2019. Net earnings were $3.8 billion, or $5.31 per diluted share in the first nine months of 2020, compared with $2.5 billion, or $3.37 per diluted share, in the first nine months of 2019. The decline in total revenues in the first nine months of 2020 was driven primarily by an increase in net investment losses. The increase in net earnings and net earnings per diluted share in 2020 reflects a $1.4 billion benefit primarily from the release of valuation allowances on deferred foreign tax credits, which were allowed due to newly released U.S. tax regulations.

Results in the third quarter of 2020 included pretax net investment gains of $108 million, compared with net investment losses of $153 million in the third quarter of 2019. Net investment gains in the third quarter of 2020 included $142 million of gains, reflecting a decline in the allowances associated the Company's estimate of current expected credit losses (CECL); $48 million of net losses from certain derivative and foreign currency gains or losses; $12 million of net gains on equity securities; and $2 million of net gains from sales and redemptions.

Results in the first nine months of 2020 included pretax net investment losses of $525 million, compared with net investment losses of $147 million in the first nine months of 2019. Net investment losses in the first nine months of 2020 included $179 million of credit losses primarily driven by increases in CECL allowances; $183 million of net losses from certain derivative and foreign currency gains or losses; $106 million of net losses on equity securities; and $57 million of net losses from sales and redemptions.

The average yen/dollar exchange rate(1) for the three-month period ended September 30, 2020 was 106.23, or 1.0% stronger than the average yen/dollar exchange rate of 107.31 for the same period in 2019. The average yen/dollar exchange rate(1) for the nine-month period ended September 30, 2020 was 107.63, or 1.4% stronger than the average yen/dollar exchange rate of 109.16 for the same period in 2019.

Adjusted earnings(2) in the third quarter of 2020 were $994 million, or $1.39 per diluted share, compared with $863 million, or $1.16 per diluted share, in the third quarter of 2019, reflecting an increase of 15.2%, driven primarily by favorable effective tax rates. This increase includes a cumulative adjustment of $202 million, or $0.28 per share, with respect to the first nine months of 2020, of which $69 million, or $0.10 per share, related to the third quarter of 2020. The slightly stronger yen/dollar exchange rate did not have a significant impact on adjusted earnings per diluted share. Adjusted earnings(2) in the first nine months of 2020 were $2.8 billion, or $3.88 per diluted share, compared with $2.6 billion, or $3.41 per diluted share, in the first nine months of 2019. The stronger yen/dollar exchange rate impacted adjusted earnings per diluted share by $.02.

Total investments and cash at the end of September 2020 were $146.1 billion, compared with $139.5 billion at September 30, 2019. In the first nine months of 2020, Aflac Incorporated repurchased $1.0 billion, or 26.1 million of its common shares. At the end of September 2020, the Company had 110.9 million remaining shares authorized for repurchase.

Shareholders’ equity was $32.5 billion, or $46.16 per share, at September 30, 2020, compared with $29.4 billion, or $40.04 per share, at September 30, 2019. Shareholders’ equity at September 30, 2020 included a net unrealized gain on investment securities and derivatives of $9.5 billion, compared with a net unrealized gain of $8.9 billion at September 30, 2019. Shareholders’ equity at September 30, 2020 also included an unrealized foreign currency translation loss of $1.3 billion, compared with an unrealized foreign currency translation loss of $1.5 billion at September 30, 2019. The

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annualized return on average shareholders’ equity in the third quarter of 2020 was 31.7%, driven primarily by a benefit from new tax regulations.

Shareholders’ equity excluding accumulated other comprehensive income (AOCI)(2) (adjusted book value) was $24.6 billion, or $34.91 per share at September 30, 2020, compared with $22.2 billion, or $30.18 per share, at September 30, 2019. The annualized adjusted return on equity excluding foreign currency impact(2) in the third quarter of 2020 was 16.8%.

(1) Yen/U.S. dollar exchange rates are based on the published MUFG Bank, Ltd. telegraphic transfer middle rate (TTM).

(2) See the Results of Operations section of this MD&A for a definition of this non-U.S. GAAP financial measure.

RESULTS OF OPERATIONS

The Company earns its revenues principally from insurance premiums and investments. The Company’s operating expenses primarily consist of insurance benefits provided and reserves established for anticipated future insurance benefits, general business expenses, commissions and other costs of selling and servicing its products. Profitability for the Company depends principally on its ability to price its insurance products at a level that enables the Company to earn a margin over the costs associated with providing benefits and administering those products. Profitability also depends on, among other items, actuarial and policyholder behavior experience on insurance products, and the Company's ability to attract and retain customer assets, generate and maintain favorable investment results, effectively deploy capital and utilize tax capacity, and manage expenses.

Yen–denominated income statement accounts are translated to U.S. dollars using a weighted average Japanese yen/U.S. dollar foreign exchange rate, except realized gains and losses on security transactions which are translated at the exchange rate on the trade date of each transaction. Yen–denominated balance sheet accounts are translated to U.S. dollars using a spot Japanese yen/U.S. dollar foreign exchange rate.

The following discussion includes references to the Company's performance measures, adjusted earnings, adjusted earnings per diluted share, and amortized hedge costs/income, which are not calculated in accordance with U.S. generally accepted accounting principles (GAAP) (non-U.S. GAAP). These measures exclude items that the Company believes may obscure the underlying fundamentals and trends in the Company's insurance operations because they tend to be driven by general economic conditions and events or related to infrequent activities not directly associated with its insurance operations. The Company's management uses adjusted earnings and adjusted earnings per diluted share to evaluate the financial performance of its insurance operations on a consolidated basis, and the Company believes that a presentation of these measures is vitally important to an understanding of its underlying profitability drivers and trends of its insurance business. The Company believes that amortized hedge costs/income, which are a component of adjusted earnings, measure the periodic currency risk management costs/income related to hedging certain foreign currency exchange risks and are an important component of net investment income.

The Company defines the non-U.S. GAAP financial measures included in this filing as follows:

•Adjusted earnings are the profits derived from operations. The most comparable U.S. GAAP measure is net earnings. Adjusted earnings are adjusted revenues less benefits and adjusted expenses. The adjustments to both revenues and expenses account for certain items that cannot be predicted or that are outside management’s control. Adjusted revenues are U.S. GAAP total revenues excluding net investment gains and losses, except for amortized hedge costs/income related to foreign currency exposure management strategies and net interest cash flows from derivatives associated with certain investment strategies. Adjusted expenses are U.S. GAAP total acquisition and operating expenses including the impact of interest cash flows from derivatives associated with notes payable but excluding any nonrecurring or other items not associated with the normal course of the Company’s insurance operations and that do not reflect the Company's underlying business performance.

•Adjusted earnings per share (basic or diluted) are adjusted earnings for the period divided by the weighted average outstanding shares (basic or diluted) for the period presented. The most comparable U.S. GAAP measure is net earnings per share.

•Amortized hedge costs/income represent costs/income incurred or recognized as a result of using foreign currency-derivatives to hedge certain foreign exchange risks in the Company's Japan segment or in the Corporate and Other segment. These amortized hedge costs/income are estimated at the inception of the derivatives based on the specific terms of each contract and are recognized on a straight line basis over the term of the hedge. There is no comparable U.S. GAAP financial measure for amortized hedge costs/income.

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•Adjusted earnings excluding current period foreign currency impact are computed using the average foreign currency exchange rate for the comparable prior-year period, which eliminates fluctuations driven solely by foreign currency exchange rate changes. The most comparable U.S. GAAP measure is net earnings.

•Adjusted earnings per diluted share excluding current period foreign currency impact are adjusted earnings excluding current period foreign currency impact divided by the weighted average outstanding diluted shares for the period presented. The most comparable U.S. GAAP measure is net earnings per share.

•U.S. dollar-denominated investment income excluding foreign currency impact is determined using the average foreign currency exchange rate for the comparable prior year period.

•Adjusted book value is the U.S. GAAP book value (representing total shareholders' equity), less AOCI as recorded on the U.S. GAAP balance sheet. The Company considers adjusted book value important as it excludes AOCI, which fluctuates due to market movements that are outside management's control.

•Adjusted return on equity (ROE) excluding foreign currency impact is calculated using adjusted earnings excluding current period foreign currency impact divided by average shareholders’ equity, excluding AOCI. The most comparable U.S. GAAP financial measure is return on average equity as determined using net earnings and average total shareholders’ equity.

The following table is a reconciliation of items impacting adjusted earnings and adjusted earnings per diluted share to the most directly comparable U.S. GAAP measures of net earnings and net earnings per diluted share, respectively.

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Reconciliation of Net Earnings to Adjusted Earnings(1)

	In Millions				Per Diluted Share				In Millions				Per Diluted Share
	Three Months Ended September 30,								Nine Months Ended September 30,
	2020		2019		2020		2019		2020		2019		2020		2019
Net earnings	$	2,456	$	777	$	3.44	$	1.04	$	3,826	$	2,523	$	5.31	$	3.37
Items impacting net earnings:
Net investment (gains)   losses (2),(3),(4),(5)	(117)		119		(.16)		.16		497		49		.69		.07
Other and non-recurring (income) loss	1		0		.00		.00		16		1		.02		.00
Income tax (benefit) expense   on items excluded from   adjusted earnings	72		(33)		.10		(.04)		(125)		(15)		(.17)		(.02)
Tax valuation allowance   release (6)	(1,418)		0		(1.99)		.00		(1,418)		0		(1.97)		.00
Adjusted earnings	994		863		1.39		1.16		2,797		2,558		3.88		3.41
Current period foreign currency   impact (7)	(3)		N/A		.00		N/A		(17)		N/A		(.02)		N/A
Adjusted earnings excluding current period foreign currency impact	$	991	$	863	$	1.39	$	1.16	$	2,780	$	2,558	$	3.86	$	3.41

(1) Amounts may not foot due to rounding.

(2) Amortized hedge costs of $51 and $66 for the three-month periods and $155 and $191 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies have been reclassified from net investment gains (losses) and included in adjusted earnings as a decrease to net investment income. See "Hedge Costs/Income" discussion below for further information.

(3) Amortized hedge income of $22 and $21 for the three-month periods and $78 and $61 for the nine-month periods ended September 30, 2020 and 2019, respectively, related to certain foreign currency exposure management strategies have been reclassified from net investment gains (losses) and included in adjusted earnings as an increase to net investment income. See "Hedge Costs/Income" discussion below for further information.

(4) Net interest cash flows from derivatives associated with certain investment strategies of $7 and $(4) for the three-month periods and $7 and $(18) for the nine-month periods ended September 30, 2020 and 2019, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

(5) A gain of $13 and $16 for the three-month periods and $43 and $50 for the nine-month periods ended September 30, 2020 and 2019, respectively, related to the interest rate component of the change in fair value of foreign currency swaps on notes payable have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of interest expense.

(6) One-time tax benefit recognized in the third quarter of 2020 representing the release of valuation allowances on deferred foreign tax credits due to new tax regulations.

(7) Prior period foreign currency impact reflected as “N/A” to isolate change for current period only.

Reconciling Items

Net Investment Gains and Losses

The Company's investment strategy is to invest primarily in fixed maturity securities to provide a reliable stream of investment income, which is one of the drivers of the Company’s growth and profitability. This investment strategy incorporates asset-liability matching (ALM) to align the expected cash flows of the portfolio to the needs of the Company's liability structure. The Company does not purchase securities with the intent of generating investment gains or losses. However, investment gains and losses may be realized as a result of changes in the financial markets and the creditworthiness of specific issuers, tax planning strategies, and/or general portfolio management and rebalancing. The realization of investment gains and losses is independent of the underwriting and administration of the Company's insurance products. Net investment gains and losses include securities transactions, credit losses, derivative and foreign currency activities and changes in fair value of equity securities.

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Securities Transactions, Credit Losses and Gains (Losses) on Equity Securities

Securities transactions include gains and losses from sales and redemptions of investments where the amount received is different from the amortized cost of the investment. Prior to January 1, 2020, impairments include other-than-temporary-impairment losses on investment securities as well as changes in loan loss reserves for loan receivables. Effective January 1, 2020, credit losses include losses for held-to-maturity fixed maturity securities, available-for-sale fixed maturity securities, loan receivables, loan commitments and reinsurance recoverables.

Certain Derivative and Foreign Currency Gains (Losses)

The Company's derivative activities include:

•foreign currency forwards and options used in hedging foreign exchange risk on U.S. dollar-denominated investments in Aflac Japan's portfolio

•foreign currency forwards and options used to economically hedge certain portions of forecasted cash flows denominated in yen and hedge the Company's long term exposure to a weakening yen

•cross-currency interest rate swaps, also referred to as foreign currency swaps, associated with certain senior notes and subordinated debentures

•foreign currency swaps that are associated with VIE bond purchase commitments, and investments in special-purpose entities, including VIEs where the Company is the primary beneficiary

•interest rate swaps used to economically hedge interest rate fluctuations in certain variable-rate investments

•interest rate swaptions used to hedge changes in the fair value associated with interest rate fluctuations for certain U.S. dollar-denominated available-for-sale fixed-maturity securities.

•bond purchase commitments at the inception of investments in consolidated VIEs

Gains and losses are recognized as a result of valuing these derivatives, net of the effects of hedge accounting. The Company also excludes from adjusted earnings the accounting impacts of remeasurement associated with changes in the foreign currency exchange rate. Amortized hedge costs/ income related to certain foreign currency exposure management strategies (see Amortized Hedge Cost/Income section below), and net interest cash flows from derivatives associated with certain investment strategies and notes payable are reclassified from net investment gains (losses) and included in adjusted earnings.

Amortized hedge costs/income can fluctuate based upon many factors, including the derivative notional amount, the length of time of the derivative contract, changes in both U.S. and Japan interest rates, and supply and demand for dollar funding. Amortized hedge costs and income have fluctuated in recent periods due to changes in the previously mentioned factors. For additional information regarding foreign currency hedging, refer to Hedging Activities in the Investments section of this MD&A.

For additional information regarding net investment gains and losses, including details of reported amounts for the periods presented, see Notes 3 and 4 of the Notes to the Consolidated Financial Statements.

Other and Non-recurring Items

The U.S. insurance industry has a policyholder protection system that provides funds for the policyholders of insolvent insurers. The system can result in periodic charges to the Company as a result of insolvencies/bankruptcies that occur with other companies in the life insurance industry. Some states permit member insurers to recover assessments paid through full or partial premium tax offsets. These charges neither relate to the ordinary course of the Company’s business nor reflect the Company’s underlying business performance, but result from external situations not controlled by the Company. The Company excludes any charges associated with U.S. guaranty fund assessments and the corresponding tax benefit or expense from adjusted earnings.

In Japan, the government also requires the insurance industry to contribute to a policyholder protection corporation that provides funds for the policyholders of insolvent insurers; however, these costs are calculated and administered differently than in the U.S. In Japan, these costs are not directly related to specific insolvencies or bankruptcies, but are rather a

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regular operational cost for an insurance company. Based on this structure, the Company does not remove the Japan policyholder protection expenses from adjusted earnings.

Income Taxes

The Company's combined U.S. and Japanese effective income tax rate on pretax earnings was (112.9)% for the three-month period ended September 30, 2020, compared with 25.0% for the same period in 2019. The Company's combined U.S. and Japanese effective income tax rate on pretax earnings was (30.0)% for the nine-month period ended September 30, 2020, compared with 25.5% for the same period in 2019. In 2020, the combined effective tax rate differs from the U.S. statutory rate primarily due to the release of certain valuation allowances established on the Company's deferred foreign tax credit benefits. The release of these valuation allowances was a result of the issuance of Final and Proposed Regulations issued by the U.S. Treasury and Internal Revenue Service on September 29, 2020, and resulted in a one-time income tax benefit of $1.4 billion in the third quarter of 2020. For additional information, see Note 9 of the accompanying Notes to the Consolidated Financial Statements and the Critical Accounting Estimates - Income Taxes section of the MD&A in the 2019 Annual Report.

The Company expects that its effective tax rate for future periods will be approximately 20%. The effective tax rate continues to be subject to future tax law changes both in the U.S. and in foreign jurisdictions. See risk factor entitled "Tax rates applicable to the Company may change" in the 2019 Annual Report for more information.

Foreign Currency Translation

Aflac Japan’s premiums and a significant portion of its investment income are received in yen, and its claims and most expenses are paid in yen. Aflac Japan purchases yen-denominated assets and U.S. dollar-denominated assets, which may be hedged to yen, to support yen-denominated policy liabilities. These and other yen-denominated financial statement items are, however, translated into dollars for financial reporting purposes. The Company translates Aflac Japan’s yen-denominated income statement into dollars using the average exchange rate for the reporting period, and the Company translates its yen-denominated balance sheet using the exchange rate at the end of the period.

Due to the size of Aflac Japan, whose functional currency is the Japanese yen, fluctuations in the yen/dollar exchange rate can have a significant effect on the Company's reported results. In periods when the yen weakens, translating yen into dollars results in fewer dollars being reported. When the yen strengthens, translating yen into dollars results in more dollars being reported. Consequently, yen weakening has the effect of suppressing current period results in relation to the comparable prior period, while yen strengthening has the effect of magnifying current period results in relation to the comparable prior period. Management evaluates the Company's financial performance both including and excluding the impact of foreign currency translation to monitor, respectively, cumulative currency impacts on book value and the currency-neutral operating performance over time.

RESULTS OF OPERATIONS BY SEGMENT

U.S. GAAP financial reporting requires that a company report financial and descriptive information about operating segments in its annual and interim period financial statements. Furthermore, the Company is required to report a measure of segment profit or loss, certain revenue and expense items, and segment assets. Aflac's insurance business consists of two segments: Aflac Japan and Aflac U.S. Aflac Japan is the principal contributor to consolidated earnings. Businesses that are not individually reportable, such as the Parent Company, and asset management subsidiaries and other business activities, including reinsurance retrocession activities, are included in the Corporate and other segment. See the Item 1. Business section of the 2019 Annual Report for a summary of each segment's products and distribution channels.

During the third quarter, Aflac Japan sales for protection-type first sector and third sector products decreased 32.8% and total sales decreased 32.0% on a yen basis, compared to the same period in 2019, primarily due to continued effects of the COVID-19 pandemic. Sales from Aflac U.S. were down 35.7% in the third quarter of 2020, compared to the same period in 2019, due to social distancing efforts, which eliminated face-to-face sales opportunities beginning in mid-March 2020. The respective Aflac Japan and Aflac U.S. platforms and distribution partners continue to work to adapt to the new environment. The Company continues to monitor the effects of COVID-19 on its operating results and has taken several steps to mobilize its resources to ensure adequate liquidity, a strong capital position, business continuity and employee safety during this pandemic. See the Executive Summary subsection of this MD&A for additional information.

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Consistent with U.S. GAAP guidance for segment reporting, pretax adjusted earnings is the Company's U.S. GAAP measure of segment performance. The Company believes that a presentation of this measure is vitally important to an understanding of the underlying profitability drivers and trends of its business. Additional performance measures used to evaluate the financial condition and performance of the Company's segments are listed below.

•operating ratios

•expense ratio

•new annualized premium sales

•new money yield

•return on average invested assets

•average weekly producer

For additional information on the Company’s performance measures included in this MD&A, see the Glossary of Selected Terms found directly following Part II. Other Information. See Note 2 of the Notes to the Consolidated Financial Statements for the reconciliation of segment results to the Company's consolidated U.S. GAAP results and additional information.

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AFLAC JAPAN SEGMENT

Aflac Japan Pretax Adjusted Earnings

Changes in Aflac Japan’s pretax adjusted earnings and profit margins are primarily affected by morbidity, mortality, expenses, persistency and investment yields. The following table presents a summary of operating results for Aflac Japan.

Aflac Japan Summary of Operating Results

	Three Months Ended September 30,				Nine Months Ended September 30,
(In millions)	2020		2019		2020		2019
Net premium income	$	3,168	$	3,241	$	9,476	$	9,593
Net investment income: (1)
Yen-denominated investment income	331		357		972		986
U.S. dollar-denominated investment income	383		368		1,122		1,083
Net investment income	714		725		2,094		2,069
Amortized hedge costs related to certain foreign currency exposure management strategies	51		66		155		191
Adjusted net investment income	663		659		1,939		1,878
Other income (loss)	11		12		32		34
Total adjusted revenues	3,842		3,912		11,447		11,505
Benefits and claims, net	2,259		2,268		6,651		6,652
Adjusted expenses:
Amortization of deferred policy acquisition costs	151		179		479		538
Insurance commissions	185		185		553		546
Insurance and other expenses	500		442		1,323		1,265
Total adjusted expenses	835		806		2,355		2,349
Total benefits and adjusted expenses	3,094		3,074		9,006		9,001
Pretax adjusted earnings	$	747	$	838	$	2,442	$	2,504
Weighted-average yen/dollar exchange rate	106.23		107.31		107.63		109.16

	In Dollars								In Yen
Percentage change over previous period:	Three Months Ended September 30,				Nine Months Ended September 30,				Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019		2020		2019		2020		2019
Net premium income	(2.3)	%	2.6	%	(1.2)	%	(.6)	%	(3.3)	%	(1.2)	%	(2.6)	%	(1.0)	%
Adjusted net investment income	.6		8.7		3.2		4.3		(.2)		4.0		1.9		3.4
Total adjusted revenues	(1.8)		3.6		(.5)		.2		(2.8)		(.3)		(1.9)		(.3)
Pretax adjusted earnings	(10.9)		10.8		(2.5)		3.9		(11.6)		6.1		(3.8)		3.2

(1) Net interest cash flows from derivatives associated with certain investment strategies of $6 and $(4) for the three-month periods and $5 and $(18) for the nine-month periods ended September 30, 2020 and 2019, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

In the three- and nine-month periods ended September 30, 2020, Aflac Japan's net premium income decreased, in yen terms, primarily due to an anticipated decrease in first sector premiums as savings products reached premium paid-up status. Adjusted net investment income increased in the nine-month period ended September 30, 2020, primarily due to higher income from U.S. dollar denominated assets and lower hedge costs.

Annualized premiums in force decreased .5% to ¥1.44 trillion as of September 30, 2020, compared with ¥1.50 trillion as of September 30, 2019. The decrease in annualized premiums in force in yen was driven primarily by limited-pay products reaching paid up status. Annualized premiums in force, translated into dollars at respective period-end exchange rates, were $13.6 billion at September 30, 2020, compared with $13.9 billion a year ago.

Aflac Japan's investment portfolios include U.S. dollar-denominated securities and reverse-dual currency securities (yen-denominated debt securities with dollar coupon payments). In years when the yen strengthens in relation to the dollar,

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translating Aflac Japan's U.S. dollar-denominated investment income into yen lowers growth rates for net investment income, total adjusted revenues, and pretax adjusted earnings in yen terms. In years when the yen weakens, translating U.S. dollar-denominated investment income into yen magnifies growth rates for net investment income, total adjusted revenues, and pretax adjusted earnings in yen terms.

The following table illustrates the effect of translating Aflac Japan’s U.S. dollar-denominated investment income and related items into yen by comparing certain segment results with those that would have been reported had foreign currency exchange rates remained unchanged from the comparable period in the prior year. Amounts excluding foreign currency impact on U.S. dollar denominated investment income were determined using the average foreign currency exchange rate for the comparable prior year period. See non-U.S. GAAP financial measures defined above.

Aflac Japan Percentage Changes Over Previous Period

(Yen Operating Results)

For the Periods Ended September 30,

	Including Foreign Currency Changes								Excluding Foreign Currency Changes
	Three Months				Nine Months				Three Months				Nine Months
	2020		2019		2020		2019		2020		2019		2020	2019
Adjusted net investment income	(.2)	%	4.0	%	1.9	%	3.4	%	.4	%	6.1	%	2.8	3.6	%
Total adjusted revenues	(2.8)		(.3)		(1.9)		(.3)		(2.7)		.0		(1.8)	(.2)
Pretax adjusted earnings	(11.6)		6.1		(3.8)		3.2		(11.1)		7.8		(3.2)	3.4

The following table presents a summary of operating ratios in yen terms for Aflac Japan.

	Three Months Ended September 30,				Nine Months Ended September 30,
Ratios to total adjusted revenues:	2020		2019		2020		2019
Benefits and claims, net	58.8	%	58.0	%	58.1	%	57.8	%
Adjusted expenses:
Amortization of deferred policy acquisition costs	3.9		4.6		4.2		4.7
Insurance commissions	4.8		4.7		4.8		4.8
Insurance and other expenses	13.0		11.3		11.5		11.0
Total adjusted expenses	21.7		20.6		20.6		20.4
Pretax adjusted earnings	19.4		21.4		21.3		21.7
Ratios to total premiums:
Benefits and claims, net	71.3	%	70.0	%	70.2	%	69.3	%
Adjusted expenses:
Amortization of deferred policy acquisition costs	4.8		5.5		5.1		5.6

In the three- and nine-month periods ended September 30, 2020, the benefit ratio increased, compared with the same periods in the prior year. This is primarily due to higher persistency, resulting in an increase in future policy benefit reserves, partially offset by the continued change in mix of first and third sector business as first sector products become paid-up. In the three- and nine-month periods ended September 30, 2020, the adjusted expense ratio increased mainly due to the decrease in total revenues and an increase in expenses related to the paperless and COVID-19 initiatives, which include the expansion of and enhancements to virtual desktops and telework terminals to support a remote workforce, partially offset by lower DAC amortization due to higher persistency. In total, the pretax adjusted profit margin decreased in the three- and nine-month periods ended September 30, 2020. For the full year of 2020, the Company will continue to monitor the situation with respect to COVID-19, and potential impacts on the pretax adjusted profit margin and benefit ratio.

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Aflac Japan Sales

The following table presents Aflac Japan’s new annualized premium sales for the periods ended September 30.

	In Dollars												In Yen
	Three Months						Nine Months						Three Months						Nine Months
(In millions of dollars and billions of yen)	2020			2019			2020			2019			2020			2019			2020			2019
New annualized premium sales	$	119		$	172		$	339		$	560		¥	12.6		¥	18.5		¥	36.4		¥	61.2
Increase (decrease) over prior period	(31.0)		%	(18.7)		%	(39.5)		%	(14.4)		%	(32.0)		%	(21.5)		%	(40.4)		%	(14.7)		%

The following table details the contributions to Aflac Japan's new annualized premium sales by major insurance product for the periods ended September 30.

	Three Months				Nine Months
	2020		2019		2020		2019
Cancer	55.7	%	52.2	%	55.3	%	59.5	%
Medical	32.0		37.5		32.3		30.9
Income support	.9		1.2		1.0		1.2
Ordinary life:
WAYS	.8		.5		.7		.5
Child endowment	.4		.3		.4		.2
Other ordinary life (1)	9.6		7.8		9.6		7.2
Other	.6		.5		.7		.5
Total	100.0	%	100.0	%	100.0	%	100.0	%

(1) Includes term and whole life

The foundation of Aflac Japan's product portfolio has been, and continues to be, third sector products, which include cancer, medical and income support insurance products. Aflac Japan has been focusing more on promotion of cancer and medical insurance products in this low-interest-rate environment. These products are less interest-rate sensitive and more profitable compared to first sector savings products. With continued cost pressure on Japan’s health care system, the Company expects the need for third sector products will continue to rise in the future and that the medical and cancer insurance products Aflac Japan provides will continue to be an important part of its product portfolio.

Sales of protection-type first sector and third sector products on a yen basis decreased 32.8% in the third quarter of 2020, compared with the same respective period in 2019. The decline in sales primarily reflects the impact of the COVID-19 pandemic.

Sales of Aflac Japan cancer products in the Japan Post Group channel experienced a material decline beginning in August 2019 which has continued into 2020. For additional information, see the risk factor entitled "Events related to the ongoing Japan Post investigation and other matters regarding sales of Japan Post Insurance products could negatively impact the Company’s sales and results of operations," in Part II, Item 1A. of the Company's Quarterly Report on Form 10-Q for the period ended March 31, 2020. Aflac Japan experienced a sharp drop-off in total sales, beginning in the second quarter and continuing into the third quarter, due to the effects of the COVID-19 pandemic and continuing effects of the Japan Post investigation.

Independent corporate agencies and individual agencies contributed 51.7% of total new annualized premium sales for Aflac Japan in the third quarter of 2020, compared with 48.1% for the same period in 2019. Affiliated corporate agencies, which include Japan Post, contributed 41.4% of total new annualized premium sales in the third quarter of 2020, compared with 46.3% in the third quarter of 2019. Japan Post offers Aflac's cancer insurance products in more than 20,000 postal outlets. Notwithstanding the recent reduction in sales of Aflac Japan's cancer products in the Japan Post channel, the Company believes this alliance with Japan Post has and will benefit its cancer insurance sales over the long term. During the three-month period ended September 30, 2020, Aflac Japan recruited 19 new sales agencies. At September 30, 2020, Aflac Japan was represented by more than 8,600 sales agencies, with more than 111,000 licensed sales associates employed by those agencies.

At September 30, 2020, Aflac Japan had agreements to sell its products at 364 banks, approximately 90% of the total number of banks in Japan. Bank channel sales accounted for 6.9% of new annualized premium sales for Aflac Japan in the third quarter of 2020, compared with 5.6% in the third quarter of 2019.

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Strategic Alliance with Japan Post Holdings

On December 19, 2018, the Parent Company and Aflac Japan entered into a Basic Agreement with Japan Post Holdings a Japanese corporation. Pursuant to the terms of the Basic Agreement, Japan Post Holdings agreed to form a capital relationship with the Parent Company, and Japan Post Holdings and Aflac Japan agreed to reconfirm existing initiatives regarding cancer insurance and to consider new joint initiatives, including leveraging digital technology in various processes, cooperation in new product development to promote customer-centric business management, cooperation in domestic and/or overseas business expansion and joint investment in third party entities and cooperation regarding asset management.

On February 28, 2019, the Parent Company entered a Shareholders Agreement with Japan Post Holdings, J&A Alliance Holdings Corporation, a Delaware corporation, solely in its capacity as trustee of J&A Alliance Trust, a New York voting trust (Trust), and General Incorporated Association J&A Alliance, a Japanese general incorporated association. Pursuant to the Shareholders Agreement, Japan Post Holdings agreed to cause the Trust to use commercially reasonable efforts to acquire, through open market or private block purchases in the U.S., beneficial ownership of approximately 7% of the Common Stock in connection with the Basic Agreement. According to a Schedule 13G/A filed by Japan Post Holdings with the SEC on January 8, 2020, the Trust had beneficially acquired 6.47% of the outstanding Common Shares as of December 31, 2019. Japan Post Holdings is the sole beneficiary of the Trust. According to a press release by Japan Post Holdings on February 14, 2020, the Trust had completed the planned beneficial acquisition of approximately 7% of the outstanding Common Shares as of February 13, 2020.

On May 1, 2020, the Parent Company filed a registration statement on Form S-3 that registered the sale of its common stock from time to time by J&A Alliance Holdings Corporation in its capacity as trustee of the Trust. The filing was made strictly pursuant to a contractual requirement contained in the Shareholders Agreement. Notwithstanding the contractual commitment and filing of the Form S-3, the Trust continues to be subject to a lockup period for a period expiring four years after the Trust acquired 7% of the Parent Company's outstanding shares, under the terms of the Shareholders Agreement.

The Trust has agreed not to own more than 10% of the Parent Company’s outstanding shares for a period expiring four years after the Trust acquired 7% of such shares, five years after it acquires 5% of such shares, or ten years after the Trust begins acquiring the Parent Company’s stock. After expiration of such period, the Trust has agreed not to own more than the greater of 10% of the Parent Company’s outstanding shares or such shares representing 22.5% of the voting rights in the Parent Company.

In light of the fact that the shares acquired by the Trust, like all Aflac Incorporated common shares, will be eligible for 10-for-1 voting rights after being held for 48 consecutive months, the Shareholders Agreement further provides for voting restrictions that effectively limit the trustee’s voting rights to no more than 20% of the voting rights in the Parent Company and further restrict the trustee’s voting rights with respect to certain change in control transactions. Japan Post Holdings will not have a Board seat on the Parent Company’s Board of Directors and will not have rights to control, manage or intervene in the management of the Parent Company.

As of December 31, 2019, all regulatory approvals expressly set forth in the Shareholders Agreement have been obtained. The Shareholders Agreement requires the parties to use reasonable best efforts to cooperate in connection with any ongoing regulatory matters related to or arising from the Trust’s acquisition or ownership or control of the shares of Company Common Stock, including any applications or filings in connection with a direct or indirect acquisition of control of or merger with an insurer by the Company or its affiliates. The foregoing is subject to and qualified in its entirety by reference to the full text of the Shareholders Agreement, a copy of which is attached as Exhibit 10.50 to the Company’s Quarterly Report on Form 10-Q filed April 26, 2019, and the terms of which exhibit are incorporated herein by reference.

Aflac Japan Investments

The level of investment income in yen is affected by available cash flow from operations, the timing of investing the cash flow, yields on new investments, the effect of yen/dollar exchange rates on U.S. dollar-denominated investment income, and other factors.

As part of the Company's portfolio management and asset allocation process, Aflac Japan invests in yen and U.S. dollar-denominated investments. Yen-denominated investments primarily consist of JGBs and public and private fixed maturity securities. Aflac Japan's U.S. dollar-denominated investments include fixed maturity investments and growth assets, including public equity securities and alternative investments in limited partnerships or similar investment vehicles. Aflac Japan has been investing in both publicly-traded and privately originated U.S. dollar-denominated investment-grade and

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below-investment-grade fixed maturity securities and loan receivables, and has entered into foreign currency forwards and options to hedge the currency risk on the fair value of a portion of the U.S. dollar investments.

The following table details the investment purchases for Aflac Japan.

	Three Months Ended September 30,				Nine Months Ended September 30,
(In millions)	2020		2019		2020		2019
Yen-denominated:
Fixed maturity securities:
Japan government and agencies	$	94	$	0	$	830	$	583
Private placements	154		92		267		985
Other fixed maturity securities	45		168		316		524
Equity securities	121		79		263		199
Total yen-denominated	$	414	$	339	$	1,676	$	2,291
U.S. dollar-denominated:
Fixed maturity securities:
Other fixed maturity securities	$	314	$	738	$	1,231	$	2,260
Infrastructure debt	0		10		55		20
Collateralized loan obligations	99		0		99		0
Equity securities	0		29		0		58
Commercial mortgage and other loans:
Transitional real estate loans	152		398		617		1,069
Commercial mortgage loans	0		197		12		235
Middle market loans	238		274		1,665		962
Other investments	60		19		158		92
Total dollar-denominated	$	863	$	1,665	$	3,837	$	4,696
Total Aflac Japan purchases	$	1,277	$	2,004	$	5,513	$	6,987

See the Investments section of this MD&A for further discussion of these investment programs, and see Notes 3 and 4 of the Notes to the Consolidated Financial Statements and Notes 1, 3 and 4 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report for more information regarding loans and loan receivables.

The following table presents the results of Aflac Japan’s investment yields for the periods ended September 30.

	Three Months						Nine Months
	2020			2019			2020			2019
Total purchases for the period (in millions) (1)	$	1,217		$	1,985		$	5,355		$	6,895
New money yield (1), (2)	3.14		%	3.98		%	3.73		%	3.64		%
Return on average invested assets (3)	2.35			2.40			2.33			2.34
Portfolio book yield, including U.S. dollar-denominated investments, end of period (1)	2.62		%	2.62		%	2.62		%	2.62		%

(1) Includes fixed maturity securities, commercial mortgage and other loans, equity securities, and excludes alternative investments in limited partnerships

(2) Reported on a gross yield basis; excludes investment expenses, external management fees, and amortized hedge costs

(3) Net of investment expenses and amortized hedge costs, year-to-date number reflected on a quarterly average basis

The decrease in the Aflac Japan new money yield in the three-month period ended September 30, 2020 was primarily due to lower U.S. interest rates. The increase in the Aflac Japan new money yield in the nine-month period ended September 30, 2020 was primarily due to increased allocations to higher yielding floating rate asset classes.

See Notes 3, 4 and 5 of the Notes to the Consolidated Financial Statements and the Investments section of this MD&A for additional information on the Company's investments and hedging strategies.

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AFLAC U.S. SEGMENT

Aflac U.S. Pretax Adjusted Earnings

Changes in Aflac U.S. pretax adjusted earnings and profit margins are primarily affected by morbidity, mortality, expenses, persistency and investment yields. The following table presents a summary of operating results for Aflac U.S.

Aflac U.S. Summary of Operating Results

	Three Months Ended September 30,						Nine Months Ended September 30,
(In millions)	2020			2019			2020			2019
Net premium income	$	1,407		$	1,445		$	4,348		$	4,365
Net investment income (1)	175			183			523			540
Other income	24			2			78			6
Total adjusted revenues	1,606			1,630			4,949			4,911
Benefits and claims	679			710			2,038			2,162
Adjusted expenses:
Amortization of deferred policy acquisition costs	141			139			435			429
Insurance commissions	140			145			439			444
Insurance and other expenses	316			301			955			880
Total adjusted expenses	597			585			1,829			1,753
Total benefits and adjusted expenses	1,277			1,295			3,867			3,915
Pretax adjusted earnings	$	329		$	335		$	1,082		$	996
Percentage change over previous period:
Net premium income	(2.6)		%	1.3		%	(.4)		%	2.0		%
Net investment income	(4.4)			(2.1)			(3.1)			(.7)
Total adjusted revenues	(1.5)			0.9			.8			1.7
Pretax adjusted earnings	(1.8)			.3			8.6			(1.5)

(1) Net interest cash flows from derivatives associated with certain investment strategies of $1 for the three-month period and $2 for the nine-month period ended September 30, 2020, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

Annualized premiums in force decreased 2.9% to $6.0 billion at September 30, 2020, compared with $6.1 billion at September 30, 2019. Net investment income decreased primarily due to the lower interest rate environment and ongoing capital management activity.

The following table presents a summary of operating ratios for Aflac U.S.

	Three Months Ended September 30,				Nine Months Ended September 30,
Ratios to total adjusted revenues:	2020		2019		2020		2019
Benefits and claims	42.3	%	43.6	%	41.2	%	44.0	%
Adjusted expenses:
Amortization of deferred policy acquisition costs	8.8		8.5		8.8		8.7
Insurance commissions	8.7		8.9		8.9		9.0
Insurance and other expenses	19.7		18.5		19.3		17.9
Total adjusted expenses	37.2		35.9		37.0		35.7
Pretax adjusted earnings	20.5		20.6		21.9		20.3
Ratios to total premiums:
Benefits and claims	48.3	%	49.1	%	46.9	%	49.5	%
Adjusted expenses:
Amortization of deferred policy acquisition costs	10.0		9.6		10.0		9.8

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For the three-month period ended September 30, 2020, the benefit ratio decreased compared with the same period in 2019; however, the ratio increased in comparison to the second quarter of 2020, which management believes may indicate the beginning of a return to levels seen over the past several years. For the nine-month period ended September 30, 2020, the benefit ratio decreased compared with the same period in 2019, reflecting reduced accidents, wellness medical visits and routine procedures due to shelter-in-place orders and heightened social distancing due to COVID-19. The adjusted expense ratio increased in the three- and nine-month periods ended September 30, 2020, when compared with the same periods in 2019, primarily due to anticipated spending increases reflecting ongoing investments in the U.S. platform, distribution, and customer experience, and TPA related expenses from the acquisition of Argus, as well as lower unit cost capitalization reflecting a third quarter decline in sales and lower general administrative expense due to lower sales, travel and claims activity. The pretax adjusted profit margin increased in the nine-month period, when compared with the same period in 2019, due to lower benefit ratios, offset somewhat by higher expense ratios. For the full year of 2020, the Company will continue to monitor the situation with respect to COVID-19, and potential impacts on the pretax adjusted profit margin and benefit ratio.

Aflac U.S. Sales

The following table presents Aflac's U.S. new annualized premium sales for the periods ended September 30.

	Three Months						Nine Months
(In millions)	2020			2019			2020			2019
New annualized premium sales	$	221		$	334		$	705		$	1,046
Increase (decrease) over prior period	(35.7)		%	(4.2)		%	(32.7)		%	(1.6)		%

The following table details the contributions to Aflac's U.S. new annualized premium sales by major insurance product category for the periods ended September 30.

	Three Months				Nine Months
	2020		2019		2020		2019
Accident	26.4	%	29.0	%	26.6	%	28.8	%
Short-term disability	24.2		22.6		23.3		23.3
Critical care(1)	20.5		20.9		20.8		20.6
Hospital indemnity	16.8		16.1		16.9		15.8
Dental/vision	5.0		5.0		4.5		5.0
Life	7.1		6.4		7.9		6.5
Total	100.0	%	100.0	%	100.0	%	100.0	%

(1) Includes cancer, critical illness, and hospital intensive care products

New annualized premium sales for accident insurance, the leading Aflac U.S. product category, decreased 41.6%; short-term disability sales decreased 31.0%; critical care insurance sales (including cancer insurance) decreased 36.9%; and hospital indemnity insurance sales decreased 33.0% in the third quarter of 2020, compared with the same period in 2019. Primarily, the decline is sales for Aflac U.S. is attributable COVID-19 social distancing efforts, which limited face-to-face sales opportunities beginning in mid-March 2020. See the Executive Summary section entitled "COVID-19" of this MD&A for additional information.

In the third quarter of 2020, the Aflac U.S. sales force included an average of approximately 5,500 U.S. agents, including brokers, who were actively producing business on a weekly basis. The Company believes that this average weekly producer equivalent metric allows sales management to monitor progress and needs, as well as serve as a leading indicator of future production capacity.

In March 2020, the Company, through its insurance subsidiaries Aflac and Aflac New York, entered into an agreement to acquire Zurich North America’s U.S. Corporate Life and Pensions business, which consists of group life, disability and absence management products. Aflac and Aflac New York will reinsure on an indemnity basis Zurich North America’s U.S. in-force group life and disability policies with annualized earned premium in the anticipated range of $115 million. Aflac will also acquire assets needed to support the group life and disability business, along with an absence management platform. Subject to regulatory approvals and customary closing conditions, this transaction is expected to close in the fourth quarter of 2020.

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Aflac U.S. Investments

The level of investment income is affected by available cash flow from operations, the timing of investing the cash flow, yields on new investments, and other factors.

As part of the Company's portfolio management and asset allocation process, Aflac U.S. invests in fixed maturity investments and growth assets, including public equity securities and alternative investments in limited partnerships. Aflac U.S. has been investing in both publicly traded and privately originated investment-grade and below-investment-grade fixed maturity securities and loan receivables.

The following table details the investment purchases for Aflac U.S.

	Three Months Ended September 30,				Nine Months Ended September 30,
(In millions)	2020		2019		2020		2019
Fixed maturity securities:
Other fixed maturity securities	$	166	$	73	$	434	$	947
Infrastructure debt	0		5		20		78
Collateralized loan obligations	56		0		67		0
Equity securities	0		16		5		43
Commercial mortgage and other loans:
Transitional real estate loans	43		82		88		224
Commercial mortgage loans	0		35		37		104
Middle market loans	20		18		63		74
Other investments	7		2		18		10
Total Aflac U.S. Purchases	$	292	$	231	$	732	$	1,480

See Note 3 of the Notes to the Consolidated Financial Statements and Notes 1 and 3 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report for more information regarding loans and loans receivables.

The following table presents the results of Aflac's U.S. investment yields for the periods ended September 30.

	Three Months						Nine Months
	2020			2019			2020			2019
Total purchases for period (in millions) (1)	$	285		$	229		$	714		$	1,470
New money yield (1), (2)	2.80		%	4.58		%	3.24		%	4.49		%
Return on average invested assets (3)	4.75			5.09			4.86			5.07
Portfolio book yield, end of period (1)	5.26		%	5.40		%	5.26		%	5.40		%

(1) Includes fixed maturity securities, commercial mortgage and other loans, equity securities, and excludes alternative investments in limited partnerships

(2) Reported on a gross yield basis; excludes investment expenses and external management fees

(3) Net of investment expenses, year-to-date number reflected on a quarterly average basis

The decrease in the Aflac U.S. new money yield for the three- and nine-month periods ended September 30, 2020 was primarily due to lower U.S. interest rates. See Notes 3 and 5 of the Notes to the Consolidated Financial Statements and the Analysis of Financial Condition section of this MD&A for additional information on the Company's investments.

CORPORATE AND OTHER

Changes in the pretax adjusted earnings of Corporate and other are primarily affected by investment income. The following table presents a summary of results for Corporate and other.

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Corporate and Other Summary of Operating Results

	Three Months Ended September 30,				Nine Months Ended September 30,
(In millions)	2020		2019		2020		2019
Premium income	$	49	$	51	$	146	$	151
Net investment income	14		23		59		65
Amortized hedge income related to certain foreign currency management strategies	22		21		78		61
Adjusted net investment income	36		44		137		126
Other income	2		2		9		10
Total adjusted revenues	87		97		292		287
Benefits and claims, net	47		49		134		144
Adjusted expenses:
Interest expense	44		33		120		100
Other adjusted expenses	35		32		107		105
Total adjusted expenses	79		65		227		205
Total benefits and adjusted expenses	126		114		361		349
Pretax adjusted earnings	$	(39)	$	(17)	$	(69)	$	(62)

Adjusted net investment income benefited from the Company’s enterprise corporate hedging program in the three- and nine-month periods ended September 30, 2020 and 2019, respectively. Beginning in 2020, net investment income also includes the Company's portion of earnings from its strategic equity investment in an asset management company. See the Hedging Activities subsection of this MD&A for further information on the enterprise corporate hedging program. The increase in interest expense in the three- and nine-month periods ended September 30, 2020, as compared to the same periods in 2019, is primarily due to the issuance of five series of senior notes in March and April 2020. See Note 8 of the Notes to the Consolidated Financial Statements for more information on these senior notes.

INVESTMENTS

The Company’s investment strategy utilizes disciplined asset and liability management while seeking long-term risk-adjusted investment returns and the delivery of stable income within regulatory and capital objectives, and preserving shareholder value. In attempting to optimally balance these objectives, the Company seeks to maintain on behalf of Aflac Japan a diversified portfolio of yen-denominated investment assets, U.S. dollar-denominated investment portfolio hedged back to yen and a portfolio of unhedged U.S. dollar-denominated assets. As part of the Company's portfolio management and asset allocation process, Aflac U.S. invests in fixed maturity investments and growth assets, including public equity securities and alternative investments in limited partnerships. Aflac U.S. invests in both publicly traded and privately originated investment-grade and below-investment-grade fixed maturity securities and loans.

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The following tables detail investments by segment.

Investment Securities by Segment

	September 30, 2020
(In millions)	Aflac Japan		Aflac U.S.		Corporate and Other		Total
Available for sale, fixed maturity securities, at fair value	$	86,536	$	14,630	$	1,962	$	103,128
Held to maturity, fixed maturity securities,    at amortized cost (1)	23,937		0		0		23,937
Equity securities	624		68		83		775
Commercial mortgage and other loans:
Transitional real estate loans (1)	4,702		889		0		5,591
Commercial mortgage loans (1)	1,279		425		0		1,704
Middle market loans (1)	3,264		263		0		3,527
Other investments:
Policy loans	244		17		0		261
Short-term investments (2)	319		207		297		823
Limited partnerships	657		73		65		795
Other	0		25		0		25
Total investments	121,562		16,597		2,407		140,566
Cash and cash equivalents	1,933		1,225		2,405		5,563
Total investments and cash	$	123,495	$	17,822	$	4,812	$	146,129

(1) Net of allowance for credit losses

(2) Includes securities lending collateral

	December 31, 2019
(In millions)	Aflac Japan		Aflac U.S.		Corporate and Other		Total
Available for sale, fixed maturity securities, at fair value	$	75,780	$	13,703	$	1,779	$	91,262
Held to maturity, fixed maturity securities, at amortized cost	30,085		0		0		30,085
Equity securities	657		67		78		802
Commercial mortgage and other loans:
Transitional real estate loans	4,507		943		0		5,450
Commercial mortgage loans	1,308		399		0		1,707
Middle market loans	2,141		271		0		2,412
Other investments:
Policy loans	234		16		0		250
Short-term investments (1)	386		242		1		629
Limited partnerships	496		55		17		568
Other	0		30		0		30
Total investments	115,594		15,726		1,875		133,195
Cash and cash equivalents	1,674		417		2,805		4,896
Total investments and cash	$	117,268	$	16,143	$	4,680	$	138,091

(1) Includes securities lending collateral

The ratings of the Company's securities referenced in the table below are based on the ratings designations provided by major rating organizations such as Moody's, Standard & Poor's and Fitch or, if not rated, are determined based on the Company's internal analysis of such securities. When the ratings issued by the rating agencies differ, the Company utilizes

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the second lowest rating when three or more rating agency ratings are available or the lowest rating when only two rating agency ratings are available.

The distributions of fixed maturity securities the Company owns, by credit rating, were as follows:

Composition of Fixed Maturity Securities by Credit Rating

		September 30, 2020						December 31, 2019
	Amortized Cost			Fair       Value			Amortized Cost			Fair       Value
AAA		1.3	%		1.2	%		1.1	%		1.0	%
AA		4.1			4.2			4.3			4.4
A		69.6			70.3			68.6			69.8
BBB		21.7			21.3			23.1			22.1
BB or lower		3.3			3.0			2.9			2.7
Total		100.0	%		100.0	%		100.0	%		100.0	%

As of September 30, 2020, the Company's direct and indirect exposure to securities in its investment portfolio that were guaranteed by third parties was immaterial both individually and in the aggregate.

The following table presents the 10 largest unrealized loss positions in the Company's portfolio as of September 30, 2020.

(In millions)	Credit Rating		Amortized Cost			Fair Value			Unrealized Loss
KLM Royal Dutch Airlines		B		$	147		$	115		$	(32)
Grenke Finance PLC		BBB		66			37			(29)
Heathrow Funding Ltd.		BBB		95			79			(16)
Lloyds Banking Group PLC		A		217			201			(16)
Investcorp Capital Limited		BB		399			385			(14)
PEMEX Project Funding Master Trust		BB		284			271			(13)
Baker Hughes Inc.		A		127			114			(13)
Cenovus Energy Inc.		BB		35			24			(11)
Banco de Chile		A		189			178			(11)
American Airlines		B		22			12			(10)

Generally, declines in fair values can be a result of changes in interest rates, yen/dollar exchange rate, and changes in net spreads driven by a broad market move or a change in the issuer's underlying credit quality. The Company believes these issuers have the ability to continue making timely payments of principal and interest. See the Unrealized Investment Gains and Losses section in Note 3 of the Notes to the Consolidated Financial Statements for further discussions of unrealized losses related to financial institutions and other corporate investments.

Below-Investment-Grade Securities

The Company's portfolio of below-investment-grade securities includes debt securities purchased while the issuer was rated investment grade plus other loans and bonds purchased as part of an allocation to that segment of the market. The following is the Company's below-investment-grade exposure.

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Below-Investment-Grade Investments

	September 30, 2020
(In millions)	Par Value		Amortized Cost (1)		Fair Value		Unrealized Gain (Loss)
Investcorp Capital Limited	$	400	$	399	$	385	$	(14)
Commerzbank	378		254		395		141
Pemex Project Funding Master Trust	283		283		271		(12)
KLM Royal Dutch Airlines	189		147		115		(32)
Telecom Italia SpA	189		189		242		53
Autostrade Per Litalia Spa	189		188		181		(7)
Barclays Bank PLC	189		123		153		30
Apache Corporation	138		128		133		5
Ovintiv Inc.	133		136		129		(7)
IKB Deutsche Industriebank AG	123		54		84		30
Other Issuers	994		844		888		44
Subtotal (2)	3,205		2,745		2,976		231
Senior secured bank loans	269		289		255		(34)
High yield corporate bonds	708		725		722		(3)
Middle market loans	3,645		3,527		3,499		(28)
Grand Total	$	7,827	$	7,286	$	7,452	$	166

(1) Net of allowance for credit losses

(2) Securities initially purchased as investment grade, but have subsequently been downgraded to below investment grade

The Company invests in senior secured bank loans and middle market loans primarily to U.S. corporate borrowers, most of which have below-investment-grade ratings. The objectives of these programs include enhancing the yield on invested assets, achieving further diversification of credit risk, and mitigating the risk of rising interest rates and hedge costs through the acquisition of floating rate assets.

The Company maintains an allocation to higher yielding corporate bonds within the Aflac Japan and Aflac U.S. portfolios. Most of these securities were rated below-investment-grade at the time of purchase, but the Company also purchased several that were rated investment grade which, because of market pricing, offer yields commensurate with below-investment-grade risk profiles. The objective of this allocation was to enhance the Company's yield on invested assets and further diversify credit risk. All investments in this program must have a minimum rating at purchase of low BB using the Company's above described rating methodology and are managed by the Company's internal credit portfolio management team.

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Fixed Maturity Securities by Sector

The Company maintains diversification in investments by sector to avoid concentrations to any one sector, thus managing exposure risk. The following table shows the distribution of fixed maturities by sector classification.

	September 30, 2020
(In millions)	Amortized Cost (1)		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		% of Total
Government and agencies	$	55,860	$	9,878	$	(42)	$	65,696	49.1	%
Municipalities	2,526		587		(3)		3,109		2.2
Mortgage- and asset-backed securities	681		38		(1)		717		.6
Public utilities	8,573		1,897		(15)		10,457		7.6
Electric	6,943		1,564		(11)		8,496		6.1
Natural Gas	308		59		0		368		.3
Other	537		114		(1)		651		.5
Utility/Energy	785		160		(3)		942		.7
Sovereign and Supranational	1,843		313		(11)		2,145		1.6
Banks/financial institutions	10,461		1,421		(186)		11,697		9.2
Banking	6,279		871		(72)		7,079		5.5
Insurance	1,988		402		(39)		2,351		1.8
Other	2,194		148		(75)		2,267		1.9
Other corporate	33,893		5,602		(380)		39,114		29.7
Basic Industry	3,408		650		(22)		4,036		3.0
Capital Goods	3,348		534		(18)		3,864		3.0
Communications	4,065		866		(34)		4,898		3.6
Consumer Cyclical	3,106		516		(24)		3,598		2.7
Consumer Non-Cyclical	6,990		1,199		(42)		8,146		6.1
Energy	4,149		516		(126)		4,539		3.6
Other	1,519		178		(10)		1,688		1.3
Technology	3,402		338		(29)		3,710		3.0
Transportation	3,906		805		(75)		4,635		3.4
Total fixed maturity securities	$	113,837	$	19,736	$	(638)	$	132,935	100.0	%

(1) Net of allowance for credit losses

Securities by Type of Issuance

The Company has investments in both publicly and privately issued securities. The Company's ability to sell either type of security is a function of overall market liquidity which is impacted by, among other things, the amount of outstanding securities of a particular issuer or issuance, trading history of the issue or issuer, overall market conditions, and idiosyncratic events affecting the specific issue or issuer.

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The following table details investment securities by type of issuance.

Investment Securities by Type of Issuance 

		September 30, 2020						December 31, 2019
(In millions)	Amortized Cost (1)			Fair    Value			Amortized Cost			Fair   Value
Publicly issued securities:
Fixed maturity securities		$	93,654		$	109,239		$	89,625		$	105,557
Equity securities		684			684			717			717
Total publicly issued		94,338			109,923			90,342			106,274
Privately issued securities: (2)
Fixed maturity securities (3)		20,183			23,696			19,831			23,299
Equity securities		91			91			85			85
Total privately issued		20,274			23,787			19,916			23,384
Total investment securities		$	114,612		$	133,710		$	110,258		$	129,658

(1) Net of allowance for credit losses

(2) Primarily consists of securities owned by Aflac Japan

(3) Excludes Rule 144A securities

The following table details the Company's reverse-dual currency securities.

Reverse-Dual Currency Securities(1)

(Amortized cost, in millions)	September 30, 2020				December 31, 2019
Privately issued reverse-dual currency securities		$	5,181			$	4,993
Publicly issued collateral structured as reverse-dual currency securities		1,737				1,678
Total reverse-dual currency securities		$	6,918			$	6,671
Reverse-dual currency securities as a percentage of total investment securities		6.0		%		6.1		%

(1) Principal payments in yen and interest payments in dollars

Aflac Japan has a portfolio of privately issued securities to better match liability characteristics and secure higher yields than those available on Japanese government or other public corporate bonds. Aflac Japan’s investments in yen-denominated privately issued securities consist primarily of non-Japanese issuers, are rated investment grade at purchase and have longer maturities, thereby allowing the Company to improve asset/liability matching and overall investment returns. These securities are generally either privately negotiated arrangements or issued under medium-term note programs and have standard documentation commensurate with credit ratings of the issuer, except when internal credit analysis indicates that additional protective and/or event-risk covenants were required. Many of these investments have protective covenants appropriate to the specific investment. These may include a prohibition of certain activities by the borrower, maintenance of certain financial measures, and specific conditions impacting the payment of the Company's notes.

HEDGING ACTIVITIES

The Company uses derivative contracts to hedge foreign currency exchange rate risk and interest rate risk. The Company uses various strategies, including derivatives, to manage these risks. See item “7A. Quantitative and Qualitative Disclosures About Market Risk” in the 2019 Annual Report for more information about market risk and the Company’s use of derivatives.

Derivatives are designed to reduce risk on an economic basis while minimizing the impact on financial results. The Company’s derivatives programs vary depending on the type of risk being hedged. See Note 4 of the Notes to the Consolidated Financial Statements for:

•A description of the Company's derivatives, hedging strategies and underlying risk exposure.

•Information about the notional amount and fair market value of the Company's derivatives.

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•The unrealized and realized gains and losses impact on adjusted earnings of derivatives in cash flow, fair value, net investments in foreign operations, or non-qualifying hedging relationships.

Foreign Currency Exchange Rate Risk Hedge Program

The Company has deployed the following hedging strategies to mitigate exposure to foreign currency exchange rate risk:

•Aflac Japan hedges U.S. dollar-denominated investments back to yen (see Aflac Japan’s U.S. Dollar-Denominated Hedge Program below).

•Aflac Japan maintains certain unhedged U.S. dollar-denominated securities, which serve as an economic currency hedge of a portion of the Company's investment in Aflac Japan (see Aflac Japan’s U.S. Dollar-Denominated Hedge Program below).

•The Parent Company designates yen-denominated liabilities (notes payable and loans) as non-derivative hedging instruments and designates certain foreign currency forwards and options as derivative hedges of the Company’s net investment in Aflac Japan (see Enterprise Corporate Hedging Program below).

•The Parent Company enters into forward and option contracts to accomplish a dual objective of hedging foreign currency exchange rate risk related to dividend payments by its subsidiary, ALIJ, and reducing enterprise-wide hedge costs. (see Enterprise Corporate Hedging Program below).

Aflac Japan’s U.S. Dollar-Denominated Hedge Program

Aflac Japan buys U.S. dollar-denominated investments, typically corporate bonds, and hedges them back to yen with foreign currency forwards and options to hedge foreign currency exchange rate risk. This economically creates yen assets that match yen liabilities during the life of the derivative and provides capital relief. The currency risk being hedged is generally based on fair value of hedged investments. The following table summarizes the U.S. dollar-denominated investments held by Aflac Japan.

	September 30, 2020				December 31, 2019
(In millions)	Amortized Cost (1)		Fair Value		Amortized Cost		Fair Value
Available-for-sale securities:
Fixed maturity securities (excluding bank loans)	$	18,868	$	20,792	$	18,012	$	19,542
Fixed maturity securities - bank loans (floating rate)	373		331		677		649
Equity securities	19		19		19		19
Commercial mortgage and other loans:
Transitional real estate loans (floating rate)	4,702		4,584		4,507		4,543
Commercial mortgage loans	1,279		1,373		1,308		1,319
Middle market loans (floating rate)	3,264		3,244		2,141		2,153
Other investments	657		657		496		496
Total U.S. Dollar Program	29,162		31,000		27,160		28,721
Available-for-sale securities:
Fixed maturity securities - economically converted to yen	1,890		2,816		1,700		2,608
Total U.S. dollar-denominated investments in Aflac Japan	$	31,052	$	33,816	$	28,860	$	31,329

(1) Net of allowance for credit losses

U.S. Dollar Program includes all U.S. dollar-denominated investments in Aflac Japan other than the investments in certain consolidated VIEs where the instrument is economically converted to yen as a result of a derivative in the consolidated VIE. Aflac Japan maintains a collar program on a portion of its US dollar program to mitigate against more extreme moves in foreign exchange and therefore support SMR. In the first quarter of 2020, the Company reduced the size of the collar program by approximately $3 billion as certain collars expired and were not replaced. While these adjustments will moderately increase the Company's exposure to SMR volatility, the Company believes that they will also reduce its exposure to pricing volatility and the related risk of negative settlements should there be a material weakening in the yen. Depending on further developments, including the possibility of further market volatility, there may be additional costs

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associated with maintaining the collar program. The Company is continually evaluating other adjustments, including the possibility of changing the level of hedging employed with the U.S dollar-denominated investments.

As of September 30, 2020, Aflac Japan had $9.2 billion outstanding notional amounts of foreign currency forwards and $17.9 billion outstanding notional amounts of foreign currency options, of which none were in-the-money, hedging its U.S. dollar-denominated investments. The fair value of Aflac Japan's unhedged U.S. dollar-denominated portfolio was $13.0 billion (excluding certain U.S. dollar-denominated assets shown in the table above as a result of consolidation that have been economically converted to yen using derivatives).

Foreign exchange derivatives used for hedging are periodically settled, which results in cash receipt or payment at maturity or early termination. The Company had net cash outflows of $2 million and net cash inflows of $31 million for the three-month periods and net cash outflows of $34 million and net cash outflows of $8 million for the nine-month periods ended September 30, 2020 and 2019, respectively, associated with the currency derivatives used for hedging Aflac Japan’s U.S. dollar-denominated investments.

Enterprise Corporate Hedging Program

The Company has designated certain yen-denominated liabilities and foreign currency forwards and options of the Parent Company as accounting hedges of its net investment in Aflac Japan. The Company's consolidated yen-denominated net asset position was partially hedged at $9.9 billion as of September 30, 2020, compared with $9.1 billion as of December 31, 2019.

The Company makes its accounting designation of net investment hedge at the beginning of each quarter. If the total of the designated Parent Company non-derivative and derivative notional is equal to or less than the Company's net investment in Aflac Japan, the hedge is deemed to be effective, and the currency exchange effect on the yen-denominated liabilities and the change in estimated fair value of the derivatives are reported in the unrealized foreign currency component of other comprehensive income. The Company's net investment hedge was effective during the nine-month periods ended September 30, 2020 and 2019, respectively. For additional information on the Company's net investment hedging strategy, see Note 4 of the Notes to the Consolidated Financial Statements.

In order to economically mitigate risks associated with the enterprise-wide exposure to the yen and the level and volatility of hedge costs, the Parent Company enters into foreign exchange forward and option contracts. By buying U.S. dollars and selling yen, the Parent Company is effectively lowering its overall economic exposure to the yen, while Aflac Japan's U.S dollar exposure remains reduced as a result of Aflac Japan's U.S. dollar-denominated hedge program that economically creates yen assets. Among other objectives, this strategy is intended to offset the enterprise-wide amortized hedge costs by generating amortized hedge income. The portion of the enterprise-wide amortized hedge income contributed by this strategy was $22 million and $21 million for the three-month periods and $78 million and $61 million for the nine-month periods ended September 30, 2020 and 2019, respectively. This activity is reported in Corporate and Other. As this program evolves, the Company will continue to evaluate the program’s efficacy. See the Results of Operations section of this MD&A for the Company's definition of amortized hedge costs/income.

The following table presents metrics related to Aflac Japan amortized hedge costs and the Parent Company amortized hedge income for the periods ended September 30.

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Aflac Japan Hedge Cost/Income Metrics(1)

	Three Months		Nine Months
	2020	2019	2020	2019
Aflac Japan:
FX forward (sell USD, buy yen) notional at end of period (in billions)(2)	$9.2	$9.5	$9.2	$9.5
Weighted average remaining tenor (in months)(3)	10.3	11.4	10.3	11.4
Amortized hedge income (cost) for period (in millions)	$(51)	$(66)	$(155)	$(191)
Parent Company:
FX forward (buy USD, sell yen) notional at end of period (in billions)(2)	$5.0	$3.5	$5.0	$3.5
Weighted average remaining tenor (in months)(3)	12.5	14.6	12.5	14.6
Amortized hedge income (cost) for period (in millions)	$22	$21	$78	$61

(1) See the Results of Operations section of this MD&A for the Company's definition of amortized hedge costs/income.

(2) Notional is reported net of any offsetting positions within Aflac Japan or the Parent Company, respectively.

(3) Tenor based on period reporting date to settlement date

Interest Rate Risk Hedge Program

Aflac Japan and Aflac U.S. use interest rate swaps from time to time to mitigate the risk of investment income volatility for certain variable-rate investments. Additionally, to manage interest rate risk associated with its U.S. dollar-denominated investments held by Aflac Japan, from time to time the Company utilizes interest rate swaptions.

For additional discussion of the risks associated with the foreign currency exposure refer to the Currency Risk section in Item 7A., Quantitative and Qualitative Disclosures about Market Risk, and the Risk Factor sections titled “The Company is exposed to foreign currency fluctuations in the yen/dollar exchange rate" and “Lack of availability of acceptable yen-denominated investments could adversely affect the Company's results of operations, financial position or liquidity" in the 2019 Annual Report.

See Note 4 of the Notes to the Consolidated Financial Statements for additional information on the Company's hedging activities.

DEFERRED POLICY ACQUISITION COSTS

The following table presents deferred policy acquisition costs by segment.

(In millions)	September 30, 2020			December 31, 2019			% Change
Aflac Japan		$	6,851		$	6,584		4.1	%	(1)
Aflac U.S.		3,468			3,544			(2.1)
Total		$	10,319		$	10,128		1.9	%

(1)Aflac Japan’s deferred policy acquisition costs increased .5% in yen during the nine months ended September 30, 2020.

See Note 6 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report for additional information on the Company's deferred policy acquisition costs.

BENEFIT PLANS

Aflac Japan and Aflac U.S. have various benefit plans. For additional information on the Company's Japanese and U.S. plans, see Note 12 of the accompanying Notes to the Consolidated Financial Statements and Note 14 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report.

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POLICY LIABILITIES

The following table presents policy liabilities by segment.

(In millions)	September 30, 2020			December 31, 2019			% Change
Aflac Japan		$	100,567		$	95,793		5.0	%	(1)
Aflac U.S.		11,564			11,295			2.4
Other		262			223			17.5
Intercompany eliminations(2)		(806)			(757)			6.5
Total		$	111,587		$	106,554		4.7	%

(1) Aflac Japan’s policy liabilities increased 1.4% in yen during the nine months ended September 30, 2020.

(2) Elimination entry necessary due to recapture of a portion of policy liabilities ceded externally, as a result of the reinsurance retrocession transaction as described in Note 7 of the Notes to the Consolidated Financial Statements.

POLICYHOLDER PROTECTION

Policyholder Protection Corporation

The Japanese insurance industry has a policyholder protection system that provides funds for the policyholders of insolvent insurers. Legislation enacted regarding the framework of the Life Insurance Policyholder Protection Corporation (LIPPC) included government fiscal measures supporting the LIPPC. In November 2016, Japan's Diet passed legislation that extended the government's fiscal support of the LIPPC through March 2022. Effective April 2014, the annual LIPPC contribution amount for the total life industry was lowered from ¥40 billion to ¥33 billion. Aflac Japan recognized an expense of ¥1.9 billion for both of the nine-month periods ended September 30, 2020 and 2019 for LIPPC assessments.

Guaranty Fund Assessments

Under U.S. state guaranty association laws, certain insurance companies can be assessed (up to prescribed limits) for certain obligations to the policyholders and claimants of impaired or insolvent insurance companies that write the same line or similar lines of business. The amount of the guaranty fund assessment that an insurer is assessed is based on its proportionate share of premiums in that state. Guaranty fund assessments for the nine-month periods ended September 30, 2020 and 2019, were immaterial.

OFF-BALANCE SHEET ARRANGEMENTS

See Note 3 of the Notes to the Consolidated Financial Statements for details on certain investment commitments.

As of September 30, 2020, the Company had no material letters of credit, standby letters of credit, guarantees or standby repurchase obligations. See Note 15 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report for information on material unconditional purchase obligations that are not recorded on the Company's balance sheet.

LIQUIDITY AND CAPITAL RESOURCES

Liquidity refers to the ability to generate sufficient cash resources to meet the payment obligations of the Company. Capital refers to the long-term financial resources available to support the operations of the businesses, fund business growth and provide for an ability to withstand adverse circumstances. Financial leverage (leverage) refers to an investment strategy of using debt to increase the potential return on equity. The Company targets and actively manages liquidity, capital and leverage in the context of a number of considerations, including:

•business investment and growth needs

•strategic growth objectives

•financial flexibility and obligations

•capital support for hedging activity

•a constantly evolving business and economic environment

•a balanced approach to capital allocation and shareholder deployment.

The governance framework supporting liquidity, capital and leverage includes global senior management and board committees that review and approve all significant capital related decisions.

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The Company's cash and cash equivalents include unrestricted cash on hand, money market instruments, and other debt instruments with a maturity of 90 days or less when purchased, all of which has minimal market, settlement or other risk exposure. The target minimum amount for the Parent Company’s cash and cash equivalents is approximately $2.0 billion to provide a capital buffer and liquidity support at the holding company. Amid the COVID-19 pandemic, the Company remains committed to prudent liquidity and capital management. At September 30, 2020, the Company held $5.6 billion in cash and cash equivalents for stress conditions, which includes the Parent Company's target minimum amount of $2.0 billion. For additional information on the Company’s liquidity and capital resources in response to COVID-19, see the Executive Summary section of this MD&A.

Aflac Japan and Aflac U.S. provide the primary sources of liquidity to the Parent Company through management fees and dividends. For 2020, the Parent Company anticipates a reduction in the dividends it receives from Aflac Japan and Aflac U.S. to maintain a strong capital position for its insurance subsidiaries during the COVID-19 pandemic. For additional information on the impact to subsidiary dividends paid to the Parent Company as a result of COVID-19, see the Executive Summary section of this MD&A.

The following table presents the amounts provided to the Parent Company for the nine-month periods ended September 30.

Liquidity Provided by Subsidiaries to Parent Company

(In millions)	2020		2019
Dividends declared or paid by subsidiaries	$	892	$	2,420
Management fees paid by subsidiaries	100		108

The following table details Aflac Japan remittances for the nine-month periods ended September 30.

Aflac Japan Remittances 

(In millions of dollars and billions of yen)	2020		2019
Aflac Japan management fees paid to Parent Company	$	54	$	89
Expenses allocated to Aflac Japan (in dollars)	0		3
Aflac Japan profit remittances to the Parent Company (in dollars)	667		1,722
Aflac Japan profit remittances to the Parent Company (in yen)	¥	72.8	¥	186.3

The Company intends to maintain higher than historical levels of liquidity and capital at the Parent Company for stress conditions and with the goals of addressing the Company’s hedge costs and related potential need for collateral and mitigating against long-term weakening of the Japanese yen. Further, the Company plans to continue to maintain a portfolio of unhedged U.S. dollar based investments at Aflac Japan and consider whether the amount of such investments should be increased or decreased relative to the Company’s view of economic equity surplus in Aflac Japan in light of potentially rising hedge costs and other factors. See the Hedging Activity subsection in this MD&A for more information.

In addition to cash and equivalents, the Company also maintains credit facilities, both intercompany and with external partners, and a number of other available tools to support liquidity needs on a global basis. In September 2018, the Parent Company filed a shelf registration statement with the SEC that allows the Company to issue an indefinite amount of debt securities, in one or more series, from time to time until September 2021. The Company believes outside sources for additional debt and equity capital, if needed, will continue to be available. Additionally, as of September 30, 2020, the Parent Company and Aflac had four lines of credit with third parties as well as seven intercompany lines of credit. For additional information, see Note 8 of the Notes to the Consolidated Financial Statements.

The primary uses of cash by the Parent Company are shareholder dividends, the repurchase of its common stock and interest on its outstanding indebtedness and operating expenses.

The Company's consolidated financial statements convey its financing arrangements during the periods presented. The Company has not engaged in material intra-period short-term financings during the periods presented that are not otherwise reported in its balance sheet or disclosed therein. The Company was in compliance with all of the covenants of its notes payable and lines of credit at September 30, 2020. The Company has not entered into transactions involving the transfer of financial assets with an obligation to repurchase financial assets that have been accounted for as a sale under applicable accounting standards, including securities lending transactions. See Notes 3 and 4 of the Notes to the

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Consolidated Financial Statements and Notes 1, 3, and 4 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report for more information on the Company's securities lending and derivative activities. With the exception of disclosed activities in those referenced footnotes and the Risk Factors in the 2019 Annual Report entitled, "The Company is exposed to foreign currency fluctuations in the yen/dollar exchange rate" and "Lack of availability of acceptable yen-denominated investments could adversely affect the Company's results of operations, financial position or liquidity," the Company does not have a known trend, demand, commitment, event or uncertainty that would reasonably result in its liquidity increasing or decreasing by a material amount.

Consolidated Cash Flows

The Company translates cash flows for Aflac Japan’s yen-denominated items into U.S. dollars using weighted-average exchange rates. In periods when the yen weakens, translating yen into dollars causes fewer dollars to be reported. When the yen strengthens, translating yen into dollars causes more dollars to be reported.

The following table summarizes consolidated cash flows by activity for the nine-month periods ended September 30.

(In millions)	2020		2019
Operating activities	$	4,601	$	4,263
Investing activities	(3,511)		(2,946)
Financing activities	(431)		(1,429)
Exchange effect on cash and cash equivalents	8		(9)
Net change in cash and cash equivalents	$	667	$	(121)

Operating Activities

The principal cash inflows for the Company's insurance activities come from insurance premiums and investment income. The principal cash outflows are the result of policy claims, operating expenses, income tax, as well as interest expense. As a result of policyholder aging, claims payments are expected to gradually increase over the life of a policy. Therefore, future policy benefit reserves are accumulated in the early years of a policy and are designed to help fund future claims payments.

The Company expects its future cash flows from premiums and investment portfolios to be sufficient to meet its cash needs for benefits and expenses.

Investing Activities

The Company's investment objectives provide for liquidity primarily through the purchase of publicly traded investment-grade debt securities. Prudent portfolio management dictates that the Company attempts to match the duration of its assets with the duration of its liabilities. Currently, when the Company's fixed maturity securities mature, the proceeds may be reinvested at a yield below that required for the accretion of policy benefit liabilities on policies issued in earlier years. However, the long-term nature of the Company's business and its strong cash flows provide the Company with the ability to minimize the effect of mismatched durations and/or yields identified by various asset adequacy analyses. From time to time or when market opportunities arise, the Company disposes of selected fixed maturity securities that are available for sale to improve the duration matching of assets and liabilities, improve future investment yields, and/or re-balance its portfolio. As a result, dispositions before maturity can vary significantly from year to year.

As part of its overall corporate strategy, the Company has committed $400 million to Aflac Ventures, LLC (Aflac Ventures), as opportunities emerge. Aflac Ventures is a subsidiary of Aflac Global Ventures, LLC (Aflac Global Ventures) which is reported in the Corporate and Other segment. The central mission of Aflac Global Ventures is to support the organic growth and business development needs of Aflac Japan and Aflac U.S. with emphasis on digital applications designed to improve the customer experience, gain efficiencies, and develop new markets in an effort to enhance and defend long-term shareholder value. Investments are included in equity securities or the other investments line in the consolidated balance sheets.

As part of an arrangement with FHLB, Aflac U.S. obtains low-cost funding from FHLB supported by acceptable forms of collateral pledged by Aflac U.S. In the first nine months of 2020, Aflac U.S. borrowed and repaid $224 million under this program. As of September 30, 2020, Aflac U.S. had outstanding borrowings of $298 million reported in its balance sheet. To further support liquidity and capital resources amid the pandemic, in April 2020, Aflac U.S. increased its internal limit for borrowings under this program to $800 million, $300 million of which the Company has designated to be used for short-term liquidity needs only and subject to qualified collateral availability and other conditions.

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See Note 3 of the Notes to the Consolidated Financial Statements for details on certain investment commitments.

Financing Activities

Consolidated cash used by financing activities was $431 million in the first nine months of 2020, compared with consolidated cash used by financing activities of $1.4 billion for the same period of 2019.

In April 2020, the Parent Company issued $1.0 billion of senior notes through a U.S. public debt offering. The notes bear interest at a fixed rate of 3.60% per annum, payable semi-annually, and will mature in April 2030. These notes are redeemable at the Parent Company's option in whole at any time or in part from time to time at a redemption price equal to the greater of: (i) the aggregate principal amount of the notes to be redeemed or (ii) the amount equal to the sum of the present values of the remaining scheduled payments for principal of and interest on the notes to be redeemed, not including any portion of the payments of interest accrued as of such redemption date, discounted to such redemption date on a semiannual basis at the yield to maturity for a U.S. Treasury security with a maturity comparable to the remaining term of the notes, plus 45 basis points, plus in each case, accrued and unpaid interest on the principal amount of the notes to be redeemed to, but excluding, such redemption date.

In March 2020, the Parent Company issued four series of senior notes totaling ¥57.0 billion through a public debt offering under its U.S. shelf registration statement. The first series, which totaled ¥12.4 billion, bears interest at a fixed rate of .300% per annum, payable semi­annually and will mature in September 2025. The second series, which totaled ¥13.3 billion, bears interest at a fixed rate of .550% per annum, payable semi-annually, and will mature in March 2030. The third series, which totaled ¥20.7 billion, bears interest at a fixed rate of .750% per annum, payable semi­annually and will mature in March 2032. The fourth series, which totaled ¥10.6 billion, bears interest at a fixed rate of .830% per annum, payable semi-annually, and will mature in March 2035. These notes may only be redeemed before maturity, in whole but not in part, upon the occurrence of certain changes affecting U.S. taxation, as specified in the indenture governing the terms of the issuance.

In January 2020, the Parent Company used the net proceeds from senior notes issued in December 2019 to redeem $350 million of its 4.00% fixed-rate senior notes due February 2022.

See Note 8 of the Notes to the Consolidated Financial Statements for further information on the debt issuances discussed above.

The Company was in compliance with all of the covenants of its notes payable and lines of credit at September 30, 2020.

Cash returned to shareholders through treasury stock purchases and dividends was $1.6 billion during the nine-month period ended September 30, 2020, compared with $1.7 billion during the nine-month period ended September 30, 2019.

The following tables present a summary of treasury stock activity during the nine-month periods ended September 30.

Treasury Stock Purchased

(In millions of dollars and thousands of shares)	2020		2019
Treasury stock purchases	$	1,037	$	1,157
Number of shares purchased:
Share repurchase program	26,108		23,126
Other	541		589
Total shares purchased	26,649		23,715

Treasury Stock Issued

(In millions of dollars and thousands of shares)	2020		2019
Stock issued from treasury:
Cash financing	$	27	$	38
Noncash financing	40		38
Total stock issued from treasury	$	67	$	76
Number of shares issued	1,884		1,909

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During the first nine months of 2020, the Company repurchased 26.1 million shares of its common stock for $1.0 billion as part of its share repurchase program. In August 2020, the Company's board of directors authorized the purchase of 100 million shares of its common stock, in addition to the 10.9 million shares that remain available for purchase under the August 2017 authorization. As of September 30, 2020, a remaining balance of 110.9 million shares of the Company's common stock was available for purchase under share repurchase authorizations by its board of directors. For information on the impact of COVID-19 on the Company's share repurchase program, see the Executive Summary section of this MD&A.

Cash dividends paid to shareholders were $.28 per share in the third quarter of 2020, compared with $.27 per share in the third quarter of 2019. The following table presents the dividend activity for the nine-month periods ended September 30.

(In millions)	2020		2019
Dividends paid in cash	$	580	$	579
Dividends through issuance of treasury shares	22		21
Total dividends to shareholders	$	602	$	600

In October 2020, the board of directors declared the fourth quarter cash dividend of $.28 per share, an increase of 3.7% compared with the same period in 2019. The dividend is payable on December 1, 2020 to shareholders of record at the close of business on November 18, 2020.

Regulatory Restrictions

Aflac, CAIC and TOIC are domiciled in Nebraska and are subject to its regulations. Subsequent to the Japan branch conversion to a subsidiary, Aflac Japan is domiciled in Japan and subject to local regulations. A life insurance company’s statutory capital and surplus is determined according to rules prescribed by the National Association of Insurance Commissioners (NAIC), as modified by the insurance department in the insurance company’s state of domicile. Statutory accounting rules are different from U.S. GAAP and are intended to emphasize policyholder protection and company solvency. Similar laws apply in New York, the domiciliary jurisdiction of Aflac New York.

The continued long-term growth of the Company's business may require increases in the statutory capital and surplus of its insurance operations. Aflac’s insurance operations may secure additional statutory capital through various sources, such as internally generated statutory earnings, reduced dividends paid to the Parent Company, capital contributions by the Parent Company from funds generated through debt or equity offerings, or reinsurance transactions. The NAIC’s RBC formula is used by insurance regulators to help identify inadequately capitalized insurance companies. The RBC formula quantifies insurance risk, business risk, asset risk and interest rate risk by weighing the types and mixtures of risks inherent in the insurer’s operations. As of September 30, 2020, Aflac’s RBC ratio remains high and reflects a strong capital and surplus position.

The maximum amount of dividends that can be paid to the Parent Company by Aflac, CAIC and TOIC without prior approval of Nebraska's director of insurance is the greater of the net income from operations, which excludes net investment gains, for the previous year determined under statutory accounting principles, or 10% of statutory capital and surplus as of the previous year-end. Dividends declared by Aflac during 2020 in excess of $864 million would be considered extraordinary and require such approval. Similar laws apply in New York, the domiciliary jurisdiction of Aflac New York.

In addition to limitations and restrictions imposed by U.S. insurance regulators, the Japan subsidiary is required to meet certain financial criteria as governed by Japanese corporate law in order to provide dividends to the Parent Company. Under these criteria, dividend capacity at the Japan subsidiary is basically defined as total equity excluding common stock, accumulated other comprehensive income amounts, capital reserves (representing statutorily required amounts in Japan) but reduced for net after-tax unrealized losses on available-for-sale securities. These dividend capacity requirements are generally aligned with the SMR. Japan's FSA maintains its own solvency standard which is quantified through the SMR. Aflac Japan's SMR is sensitive to interest rate, credit spread, and foreign exchange rate changes, therefore the Company continues to evaluate alternatives for reducing this sensitivity, including the reduction of subsidiary dividends paid to the Parent Company and Parent Company capital contributions. In the event of a rapid change in market risk conditions causing SMR to decline, the Company has one senior unsecured revolving credit facility in the amount of ¥100 billion and a committed reinsurance facility in the amount of approximately ¥120 billion as a capital contingency plan. Additionally, the Company could take action to enter into derivatives on unhedged U.S. dollar-denominated investments

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with foreign currency options or forwards. (See Notes 7 and 8 of the Notes to the Consolidated Financial Statements for additional information.)

The Company has already undertaken various measures to mitigate the sensitivity of Aflac Japan's SMR. For example, the Company employs policy reserve matching (PRM) investment strategies, which is a Japan-specific accounting treatment that reduces SMR interest rate sensitivity since PRM-designated investments are carried at amortized cost consistent with corresponding liabilities. In order for a PRM-designated asset to be held at amortized cost, there are certain criteria that must be maintained. The primary criterion relates to maintaining the duration of designated assets and liabilities within a specified tolerance range. If the duration difference is not maintained within the specified range without rebalancing, then a certain portion of the assets must be re-classified as available for sale and held at fair value with any associated unrealized gain or loss recorded in surplus. To rebalance, assets may need to be sold in order to maintain the duration with the specified range, resulting in realizing a gain or loss from the sale. For U.S. GAAP, PRM investments are categorized as available for sale. The Company also uses foreign currency derivatives to hedge a portion of its U.S. dollar-denominated investments. (See Notes 3, 4 and 8 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report for additional information on the Company's investment strategies, hedging activities, and reinsurance, respectively.)

As of September 30, 2020, Aflac Japan's SMR remains high and reflects a strong capital and surplus position. The Company is committed to maintaining strong capital levels throughout the pandemic. For additional information see the Executive Summary COVID-19 section of this MD&A.

Privacy and Cybersecurity Governance

The Company’s Board of Directors have adopted an information security policy directing management to establish and operate a global information security program with the goals of monitoring existing and emerging threats and ensuring that the Company’s information assets and data, and the data of its customers, are appropriately protected from loss or theft. The Board has delegated oversight of the Company’s information security program to the Audit and Risk Committee. The Company’s senior officers, including its Global Security and Chief Information Security Officer, are responsible for the operation of the global information security program and regularly communicate with the Audit and Risk Committee on the program, including with respect to the state of the program, compliance with applicable regulations, current and evolving threats, and recommendations for changes in the information security program. The global information security program also includes a cybersecurity incident response plan that is designed to provide a management framework across Company functions for a coordinated assessment and response to potential security incidents. This framework establishes a protocol to report certain incidents to the Global Security and Chief Information Security Officer and other senior officers, with the goal of timely assessing such incidents, determining applicable disclosure requirements and communicating with the Audit and Risk Committee. The incident response plan directs the executive officers to report certain incidents immediately and directly to the Lead Non-Management Director.

Other

For information regarding commitments and contingent liabilities, see Note 13 of the Notes to the Consolidated Financial Statements.

Additional Information

Investors should note that the Company announces material financial information in its SEC filings, press releases and public conference calls. In accordance with SEC guidance, the Company may also use the Investor Relations section of the Company's website (http://investors.aflac.com) to communicate with investors about the Company. It is possible that the financial and other information the Company posts there could be deemed to be material information. The information on the Company's website is not part of this document. Further, the Company's references to website URLs are intended to be inactive textual references only.

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CRITICAL ACCOUNTING ESTIMATES

The Company prepares its financial statements in accordance with U.S. GAAP. These principles are established primarily by the FASB. In this MD&A, references to U.S. GAAP issued by the FASB are derived from the FASB Accounting Standards Codification™ (ASC). The preparation of financial statements in conformity with U.S. GAAP requires the Company to make estimates based on currently available information when recording transactions resulting from business operations. The estimates that the Company deems to be most critical to an understanding of Aflac’s results of operations and financial condition are those related to the valuation of investments and derivatives, DAC, liabilities for future policy benefits and unpaid policy claims, and income taxes. The preparation and evaluation of these critical accounting estimates involve the use of various assumptions developed from management’s analyses and judgments. The application of these critical accounting estimates determines the values at which 94% of the Company's assets and 81% of its liabilities are reported as of September 30, 2020, and thus has a direct effect on net earnings and shareholders’ equity. Subsequent experience or use of other assumptions could produce significantly different results.

As of September 30, 2020, the Company refined its valuation model for private placements to explicitly incorporate currency basis swap adjustments (market observable data) to assumed interest rate curves where appropriate as noted in Note 5 of the Notes to the Consolidated Financial Statements.

On September 29, 2020, the U.S. Treasury and Internal Revenue Service issued Final and Proposed Regulations. Under the guidance of these regulations, the Company will recognize a one-time income tax benefit of $1.4 billion due to the release of previously established valuation allowances related to deferred foreign tax credit benefits. As a result, adjusted earnings benefited in the current period from a lower effective tax rate, and the Company believes this will also reduce the effective tax rate in future periods, subject to any future changes in the U.S. tax policy. For additional information on income tax and the effects of the income tax benefit during the period ended September 30, 2020, see Note 9 of the Notes to the Consolidated Financial Statements presented in this report.

There have been no changes in the items the Company has identified as critical accounting estimates during the nine months ended September 30, 2020, with the exception of the recognition of lifetime credit losses required in accordance with the adoption of ASC 326 - Financial Instruments - Credit Losses and, as noted above, the Company's refined valuation model for its private placements and the recognition of a $1.4 billion income tax benefit as a result of the issuance of Final and Proposed Regulations by the U.S. Treasury and Internal Revenue Service. See Note 3 of the Notes to the Consolidated Financial Statements for further information on the Company’s current expected credit loss estimation methodology. For additional information, see the Critical Accounting Estimates section of MD&A included in the 2019 Annual Report.

New Accounting Pronouncements

For information on new accounting pronouncements and the impact, if any, on the Company's financial position or results of operations, see Note 1 of the Notes to the Consolidated Financial Statements.

Item 3.Quantitative and Qualitative Disclosures about Market Risk

The Company is exposed primarily to the following types of market risks: currency risk, interest rate risk, credit risk and equity risk. The Company regularly monitors its market risks and uses a variety of strategies to manage its exposure to these market risks. A description of the Company's market risk exposures may be found under “Quantitative and Qualitative Disclosures About Market Risk” in Part II, Item 7A, of the 2019 Annual Report. There have been no changes to the Company's market risk exposures from the market risk exposures previously disclosed in the 2019 Annual Report except as outlined below.

As a result of recent market volatility caused by the COVID-19 pandemic, the Company has marginally widened and lowered the size of the collars it maintains on a portion of its US dollar program to mitigate against more extreme moves in foreign exchange rates. The Company is evaluating other adjustments to mitigate currency risk, including the possibility of hedging additional U.S. dollar-denominated investments.

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Item 4.Controls and Procedures

Disclosure Controls and Procedures

The Company’s management, with the participation of the Company’s Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Company’s disclosure controls and procedures (as such term is defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended (the Exchange Act)) as of the end of the period covered by this quarterly report (the Evaluation Date). Based on such evaluation, the Company’s Chief Executive Officer and Chief Financial Officer have concluded that, as of the Evaluation Date, the Company’s disclosure controls and procedures are effective.

Changes in Internal Control Over Financial Reporting

There have not been any changes in the Company’s internal control over financial reporting (as such term is defined in Rule 13a-15(f) under the Exchange Act) during the third fiscal quarter of 2020 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

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PART II. OTHER INFORMATION

Item 1.Legal Proceedings

The Company is a defendant in various lawsuits considered to be in the normal course of business. Members of the Company's senior legal and financial management teams review litigation on a quarterly and annual basis. The final results of any litigation cannot be predicted with certainty. Although some of this litigation is pending in states where large punitive damages, bearing little relation to the actual damages sustained by plaintiffs, have been awarded in recent years, the Company believes the outcome of pending litigation will not have a material adverse effect on its financial position, results of operations, or cash flows.

Item 1A.Risk Factors

Readers should carefully consider the risk factors that may affect the Company’s business or operations described under “Risk Factors” in Part I, Item 1A. of the Company's 2019 Annual Report on Form 10-K for the year ended December 31, 2019 and in Part II, Item 1A. of the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2020.

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Item 2.Unregistered Sales of Equity Securities and Use of Proceeds

Issuer Purchases of Equity Securities

During the first nine months of 2020, the Company repurchased shares of its common stock as follows:

Period	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
January 1 - January 31	3,906,085		$	52.61	3,906,085	33,147,528
February 1 - February 29	2,870,531		50.93		2,367,300	30,780,228
March 1 - March 31	3,715,439		33.46		3,710,430	27,069,798
April 1 - April 30	1,890,000		35.74		1,890,000	25,179,798
May 1 - May 31	1,721,653		34.95		1,720,900	23,458,898
June 1  - June 30	1,609,905		37.48		1,597,741	21,861,157
July 1 - July 31	2,045,100		35.76		2,045,100	19,816,057
August 1 - August 31	3,929,149		36.98		3,913,300	115,903,549
September 1  - September 30	4,961,219		36.79		4,957,427	110,946,122
Total	26,649,081	(1)	$	39.96	26,108,283	110,946,122	(2)

(1) During the first nine months of 2020, 540,798 shares were purchased in connection with income tax withholding obligations related to the vesting of restricted-share-based awards during the period.

(2) The total remaining shares available for purchase at September 30, 2020, consisted of 10,946,122 shares related to an 80,000,000 share repurchase authorization by the board of directors announced in 2017 and 100,000,000 shares related to a 100,000,000 share repurchase authorization by the board of directors announced in August 2020.

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Item 6.        Exhibits

(a)	EXHIBIT INDEX
	3.0	-	Articles of Incorporation, as amended – incorporated by reference from Form 10-Q for June 30, 2008, Exhibit 3.0.
	3.1	-	Bylaws of the Corporation, as amended and restated – incorporated by reference from Form 8-K dated April 6, 2020, Exhibit 3.1.
	4.0	-	There are no instruments with respect to long-term debt not being registered in which the total amount of securities authorized exceeds 10% of the total assets of Aflac Incorporated and its subsidiaries on a consolidated basis. The Company agrees to furnish a copy of any long-term debt instrument to the Securities and Exchange Commission upon request.
	31.1	-	Certification of CEO dated October 29, 2020, required by Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934.
	31.2	-	Certification of CFO dated October 29, 2020, required by Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934.
	32	-	Certification of CEO and CFO dated October 29, 2020, pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
	101.INS	-	XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
	101.SCH	-	Inline XBRL Taxonomy Extension Schema.
	101.CAL	-	Inline XBRL Taxonomy Extension Calculation Linkbase.
	101.DEF	-	Inline XBRL Taxonomy Extension Definition Linkbase.
	101.LAB	-	Inline XBRL Taxonomy Extension Label Linkbase.
	101.PRE	-	Inline XBRL Taxonomy Extension Presentation Linkbase.
	104	-	Cover Page Interactive Data File - formatted as Inline XBRL and contained in Exhibit 101.

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Glossary of Selected Terms

Throughout this Quarterly Report on Form 10-Q, the Company may use certain performance metrics and other terms which are defined below.

Adjusted Earnings Per Diluted Share Excluding the Impact of Foreign Currency – Adjusted earnings are adjusted revenues less benefits and adjusted expenses. The adjustments to both revenues and expenses account for certain items that cannot be predicted or that are outside management’s control. Adjusted revenues are U.S. GAAP total revenues excluding net investment gains and losses, except for amortized hedge costs/income related to foreign currency exposure management strategies and net interest cash flows from derivatives associated with certain investment strategies. Adjusted expenses are U.S. GAAP total acquisition and operating expenses including the impact of interest cash flows from derivatives associated with notes payable but excluding any nonrecurring or other items not associated with the normal course of the company’s insurance operations and that do not reflect Aflac’s underlying business performance. The most comparable U.S. GAAP measure is net earnings. Adjusted earnings per share (basic or diluted) are the adjusted earnings for the period divided by the weighted average outstanding shares (basic or diluted) for the period presented. The most comparable U.S. GAAP measure is net earnings per share. This metric is then adjusted using the average yen/dollar exchange rate for the comparable prior year period, which eliminates dollar based fluctuations driven solely from currency rate changes.

Adjusted Net Investment Income - Net Investment Income adjusted for amortized hedge cost/income related to foreign currency exposure management strategies and certain derivative activity and net interest cash flows from foreign currency and interest rate derivatives associated with certain investment strategies, which are reclassified from net investment gains and (losses) to net investment income. The metric is used in segment reporting as a component of segment profitability.

Affiliated Corporate Agency – Agency in Japan directly affiliated with a specific corporation that sells insurance policies primarily to its employees.

Annualized Premiums in Force – the amount of gross premium that a policyholder must pay over a full year in order to keep coverage. The growth of net premiums (defined below) is directly affected by the change in premiums in force and by the change in weighted-average yen/dollar exchange rates.

Average Weekly Producer – The total number of writing associates who have produced greater than $0.00 during the production week - excluding any manual adjustments divided by the number of weeks in

the time period. The Company believes this metric allows sales management to monitor progress and needs, as well as serve as a leading indicator of future production capacity.

Capital Buffer – Established dollar amount of liquidity at the Parent Company reserved for injecting capital into the insurance entities or general liquidity support for general expenses at the Parent Company. Currently, the capital buffer is $1.0 billion and is part of $2.0 billion minimum balance at the Parent Company.

Earnings Per Basic Share – Net earnings divided by weighted-average number of shares outstanding for the period.

Earnings Per Diluted Share – Net earnings divided by the weighted-average number of shares outstanding for the period plus the weighted-average shares for the dilutive effect of share-based awards outstanding.

Group Insurance – Insurance issued to a group, such as an employer or trade association, that covers employees or association members and their dependents through certificates of coverage.

Individual Insurance – Insurance issued to an individual with the policy designed to cover that person and his or her dependents.

In-force Policies – A count of policies that are active contracts at the end of a period.

Liquidity Support – Internally defined and established dollar amount of liquidity reserved for supporting potential collateral and settlements of derivatives at the Parent Company. Currently, the liquidity support is $1.0 billion and is part of the $2.0 billion minimum balance at the Parent Company.

Net Investment Income – The income derived from interest and dividends on invested assets, after deducting investment expenses.

Net Premiums – (sometimes referred to as net premium income or net earned premiums) is a financial measure that appears on the Company's Consolidated Statements of Earnings and in its segment reporting. This measure reflects collected or due premiums that have been earned ratably on policies in force during the reporting period, reduced by premiums that have been ceded to third parties and increased by premiums assumed through reinsurance.

New Annualized Premium Sales – (sometimes referred to as new sales or sales) An operating measure that is not reflected on the Company's financial statements. New annualized premium sales generally represent annual premiums on policies the Company sold and incremental increases from policy conversions that

112

would be collected over a 12-month period assuming the policies remain in force for that entire period. For Aflac Japan, new annualized premium sales are determined by applications submitted during the reporting period. For Aflac U.S., new annualized premium sales are determined by applications. that are issued during the reporting period. Policy conversions are defined as the positive difference in the annualized premium when a policy upgrades in the current reporting period.

New Money Yield – Gross yields earned on purchases of fixed maturities, loan receivables, and equities. Purchases exclude capitalized interest, securities lending/repurchase agreements, short-term/cash activity, and alternatives. New money yield for equities is based on the assumed dividend yield at the time of purchase. The new money yield for Aflac Japan excludes the impact of any derivatives and associated amortized hedge costs associated with USD-denominated investments. Management uses this metric as a leading indicator of future investment earning potential.

Operating Ratios – Used to evaluate the Company's financial condition and profitability. Examples include: (1) Ratios to total adjusted revenues, which present expenses as a percentage of total revenues and (2) Ratios to total premium, including benefit ratio.

Persistency – Percentage of premiums remaining in force at the end of a period, usually one year. For example, 95% persistency would mean that 95% of the premiums in force at the beginning of the period were still in force at the end of the period.

Pretax Adjusted Earnings – Earnings as adjusted earnings (as defined above) before the application of income taxes.

Pretax Adjusted Profit Margin – Adjusted earnings divided by adjusted revenues, before taxes are applied. This measure is used in Aflac's segment reporting.

Return on Average Invested Assets – Net investment income as a percentage of average invested assets during the period. Management uses this metric to demonstrate how our actual net investment income results represent an overall return on the portfolio to provide a more comparative metric as the size of our investment portfolio changes over time.

Risk-based Capital (RBC) Ratio – Statutory adjusted capital divided by statutory required capital. This insurance ratio is based on rules prescribed by the National Association of Insurance Commissioners (NAIC) and provides an indication of the amount of statutory capital the insurance company maintains, relative to the inherent risks in the insurer’s operations.

Solvency Margin Ratio (SMR) – Solvency margin total divided by one half of the risk total. This insurance ratio

is prescribed by the Japan Financial Services Agency (FSA) and is used for all life insurance companies in Japan to measure the adequacy of the company’s ability to pay policyholder claims in the event actual risks exceed expected levels.

Statutory Earnings – Earnings determined according to accounting rules prescribed by the National Association of Insurance Commissioners (NAIC), as modified by the insurance department in the insurance company’s state of domicile. These statutory accounting rules are different from U.S. GAAP and are intended to emphasize policyholder protection and company solvency.

Weighted-Average Foreign Currency Exchange Rate –Japan segment operating earnings for the period (excluding hedge costs) in yen divided by Japan segment operating earnings for the period (excluding hedge costs) in dollars. Management uses this metric to evaluate and determine consolidated results on foreign currency effective basis.

113

Defined Terms

Throughout this Quarterly Report on Form 10-Q, the Company may use abbreviations, acronyms and defined terms which are defined below.

AFS	Available-for-Sale
AOCI	Accumulated Other Comprehensive Income
ASC	Accounting Standards Codification
ASU	Accounting Standards Update
CARES	Coronavirus Aid, Relief, and Economic Security
CDSs	Credit Default Swaps
CMLs	Commercial Mortgage Loans
CSAs	Credit Support Annexes
DAC	Deferred Policy Acquisition Costs
DSCR	Debt Service Coverage Ratios
EPS	Earnings Per Share
FASB	Financial Accounting Standard Boards
FHLB	Federal Home Loan Bank of Atlanta
FSA	Japanese Financial Services Agency
HTM	Held-to-Maturity
ISDA	International Swaps and Derivatives Association, Inc.
ISOs	Incentive Stock Options
Japan Post Holdings	Japan Post Holdings Co., Ltd.
JGB	Japan Government Bond
LGD	Loss-Given-Default
LIBOR	London Interbank Offered Rate
LIPPC	Life Insurance Policyholder Protection Corporation
LTV	Loan-to-Value
MD&A	Management's Discussion and Analysis of Financial Condition and Results of Operations
MMLs	Middle Market Loans
MOF	Ministry of Finance
NAIC	National Association of Insurance Commissioners
NOLHGA	National Organization of Life and Health Guaranty Associations
NQSOs	Non-qualifying Stock Options
NRSROs	Nationally Recognized Statistical Rating Organizations
OTC	Over-the-Counter
PCD Financial Assets	Purchased Credit-Deteriorated Financial Assets
PD	Probability-of-Default
PPP	Paycheck Protection Program
PRM	Policy Reserve Matching
RBC	Risk-Based Capital
S&P	Standard & Poor's
SEC	Securities and Exchange Commission
SMI	Solvency Modernization Initiative
SMR	Solvency Margin Ratio
The Plan	Aflac Incorporated Long-Term Incentive Plan
TIBOR	Tokyo Interbank Market Rate
TDRs	Trouble Debt Restructurings
TREs	Transitional Real Estate Loans
TTM	Telegraphic Transfer Middle Rate
U.S. GAAP	U.S. Generally Accepted Accounting Principles
VIEs	Variable Interest Entities

114

SIGNATURES

Pursuant to the requirements 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.

	Aflac Incorporated
October 29, 2020	/s/ Max K. Brodén
	(Max K. Brodén)
	Executive Vice President; Chief Financial Officer
October 29, 2020	/s/ June Howard
	(June Howard)
	Senior Vice President, Financial Services; Chief Accounting Officer

115

EX-31.1

Aflac Incorporated 3rd Quarter 2020 10-Q

EXHIBIT 31.1

Certification of Chief Executive Officer

I, Daniel P. Amos, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Aflac Incorporated;

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 officer 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 (the registrant’s fourth fiscal quarter in the case of an annual report) 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 officer 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 the 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.

Date:	October 29, 2020	/s/ Daniel P. Amos
		Daniel P. Amos
		Chairman and Chief Executive Officer

EX-31.2

Aflac Incorporated 3rd Quarter 2020 10-Q

EXHIBIT 31.2

Certification of Chief Financial Officer

I, Max K. Brodén, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Aflac Incorporated;

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 officer 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 (the registrant’s fourth fiscal quarter in the case of an annual report) 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 officer 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 the 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.

Date:	October 29, 2020	/s/ Max K. Brodén
		Max K. Brodén
		Executive Vice President, Chief Financial Officer

EX-32

Aflac Incorporated 3rd Quarter 2020 10-Q

EXHIBIT 32

Certification of CEO and CFO Pursuant to

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q of Aflac Incorporated (the “Company”) for the quarterly period ended September 30, 2020, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Daniel P. Amos, as Chief Executive Officer of the Company, and Max K. Brodén, as Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge:

(1)The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange 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.

/s/ Daniel P. Amos
Name:	Daniel P. Amos
Title:	Chief Executive Officer
Date:	October 29, 2020

/s/ Max K. Brodén
Name:	Max K. Brodén
Title:	Chief Financial Officer
Date:	October 29, 2020

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2020	Oct. 19, 2020
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	001-07434
Entity Registrant Name	Aflac Incorporated
Entity Incorporation, State or Country Code	GA
Entity Tax Identification Number	58-1167100
Entity Address, Address Line One	1932 Wynnton Road
Entity Address, City or Town	Columbus,
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	31999
City Area Code	706.
Local Phone Number	323.3431
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		702,445,245
Amendment Flag	false
Entity Central Index Key	0000004977
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2020
NEW YORK STOCK EXCHANGE, INC.
Title of 12(b) Security	Common Stock, $.10 par value per share
Trading Symbol	AFL
Security Exchange Name	NYSE

XML

Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020		Sep. 30, 2019
Revenues:
Net premium income	$ 4,623	$ 4,736	$ 13,969		$ 14,109
Net investment income	896	936	2,669		2,692
Net investment gains (losses)	108	(153)	(525)		(147)
Other income (loss)	38	17	121		50
Total revenues	5,665	5,536	16,234		16,704
Benefits and expenses:
Benefits and claims, net	2,985	3,027	8,822		8,958
Acquisition and operating expenses:
Amortization of deferred policy acquisition costs	292	317	914		967
Insurance commissions	325	330	993		990
Insurance and other expenses	847	769	2,382	[1]	2,230
Interest expense	63	57	181		171
Total acquisition and operating expenses	1,527	1,473	4,470		4,358
Total benefits and expenses	4,512	4,500	13,292		13,316
Earnings before income taxes	1,153	1,036	2,942		3,388
Income taxes	(1,303)	259	(884)		865
Net earnings	$ 2,456	$ 777	$ 3,826		$ 2,523
Net earnings per share:
Basic (in dollars per share)	$ 3.45	$ 1.05	$ 5.33		$ 3.38
Diluted (in dollars per share)	$ 3.44	$ 1.04	$ 5.31		$ 3.37
Weighted-average outstanding common shares used in computing earnings per share (In thousands):
Basic (in shares)	711,698	739,946	717,962		745,465
Diluted (in shares)	713,793	743,842	720,333		749,452
Cash dividends per share	$ 0.28	$ 0.27	$ 0.84		$ 0.81
4.00% senior notes paid January 2020
Expense on extinguishment of debt			$ 15

[1] Includes expense of $15 for the early extinguishment of debt

XML

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net earnings	$ 2,456	$ 777	$ 3,826	$ 2,523
Other comprehensive income (loss) before income taxes:
Unrealized foreign currency translation gains (losses) during period	172	(22)	329	393
Unrealized gains (losses) on fixed maturity securities:
Unrealized holding gains (losses) on fixed maturity securities during period	1,420	1,185	26	6,427
Reclassification adjustment for (gains) losses on fixed maturity securities included in net earnings	(13)	41	132	(1)
Unrealized gains (losses) on derivatives during period	2	(8)	(3)	(12)
Pension liability adjustment during period	(1)	1	(1)	5
Total other comprehensive income (loss) before income taxes	1,580	1,197	483	6,812
Income tax expense (benefit) related to items of other comprehensive income (loss)	413	310	29	1,712
Other comprehensive income (loss), net of income taxes	1,167	887	454	5,100
Total comprehensive income (loss)	$ 3,623	$ 1,664	$ 4,280	$ 7,623

XML

Consolidated Balance Sheets - USD ($) $ in Millions		Sep. 30, 2020		Dec. 31, 2019
Investments and Cash:
Available for sale, fixed maturity securities		$ 103,128		$ 91,262
Held to maturity, fixed maturity securities, net carrying amount	[1]	23,937
Held to maturity, fixed maturity securities, amortized cost		23,946		30,085
Equity securities		775		802
Commercial mortgage and other loans		10,822		9,569
Other investments		1,904		1,477
Cash and cash equivalents		5,563		4,896
Total investments and cash		146,129		138,091
Receivables		824		828
Accrued investment income		737		772
Deferred policy acquisition costs		10,319		10,128
Property and equipment, at cost less accumulated depreciation		584		581
Other		2,362		2,368
Total assets		160,955		152,768
Policy Liabilities:
Future policy benefits		95,240		90,335
Unpaid policy claims		4,976		4,659
Unearned premiums		3,729		4,243
Other policyholders’ funds		7,642		7,317
Total policy liabilities		111,587		106,554
Income taxes		4,278		5,370
Payables for return of cash collateral on loaned securities		1,495		1,876
Notes payable and lease obligations		7,825		6,569
Other		3,291		3,440
Total liabilities		128,476		123,809
Commitments and contingent liabilities (Note 13)
Shareholders’ equity:
Common stock of $.10 par value. In thousands: authorized 1,900,000 shares in 2020 and 2019; issued 1,350,855 shares in 2020 and 1,349,309 shares in 2019		135		135
Additional paid-in capital		2,383		2,313
Retained earnings		37,460		34,291
Accumulated other comprehensive income (loss):
Unrealized foreign currency translation gains (losses)		(1,290)		(1,623)
Unrealized gain (losses) on fixed maturity securities		9,520		8,548
Unrealized gains (losses) on derivatives		(35)		(33)
Pension liability adjustment		(278)		(277)
Treasury stock, at average cost		(15,416)		(14,395)
Total shareholders’ equity		32,479		28,959
Total liabilities and shareholders’ equity		160,955		152,768
Consolidated Entity Excluding Variable Interest Entities (VIE)
Investments and Cash:
Available for sale, fixed maturity securities		98,844		86,950
Variable Interest Entity, Consolidated
Investments and Cash:
Available for sale, fixed maturity securities		4,284		4,312
Commercial mortgage and other loans		9,245	[2]	7,956
Other investments	[3]	658	[2]	494
Policy Liabilities:
Total liabilities		$ 240	[2]	$ 126

[1] Net of allowance for credit losses

[2] Net of allowance for credit losses

[3] Consists entirely of alternative investments in limited partnerships

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Millions		Sep. 30, 2020		Dec. 31, 2019
Available for sale, fixed maturity securities, amortized cost		$ 89,938		$ 79,371
Available for sale, fixed maturity securities, allowance for credit losses		38
Held to maturity, fixed maturity securities, fair value		29,807		37,594
Held-to-maturity, fixed maturity securities, allowance for credit losses		9
Commercial mortgage and other loans		10,822		9,569
Commercial mortgage and other loans, allowance for credit losses		165		45	[1]
Other investments		$ 1,904		$ 1,477
Common stock, par value (in dollars per share)		$ 0.10		$ 0.10
Common stock, shares authorized (in shares)		1,900,000		1,900,000
Common stock, shares issued (in shares)		1,350,855		1,349,309
Consolidated Entity Excluding Variable Interest Entities (VIE)
Available for sale, fixed maturity securities, amortized cost		$ 86,659		$ 76,063
Available for sale, fixed maturity securities, allowance for credit losses		38
Variable Interest Entity, Consolidated
Available for sale, fixed maturity securities, amortized cost		3,279	[2]	3,308
Commercial mortgage and other loans		9,245	[2]	7,956
Other investments	[3]	$ 658	[2]	$ 494

[1] U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only.

[2] Net of allowance for credit losses

[3] Consists entirely of alternative investments in limited partnerships

XML

Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions		Total	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock	Cumulative effect, period of adoption, adjustment	Cumulative effect, period of adoption, adjustment Common stock	Cumulative effect, period of adoption, adjustment Additional paid-in capital	Cumulative effect, period of adoption, adjustment Retained earnings	Cumulative effect, period of adoption, adjustment Accumulated other comprehensive income (loss)	Cumulative effect, period of adoption, adjustment Treasury stock	Cumulative effect, period of adoption, adjusted balance	Cumulative effect, period of adoption, adjusted balance Common stock	Cumulative effect, period of adoption, adjusted balance Additional paid-in capital	Cumulative effect, period of adoption, adjusted balance Retained earnings	Cumulative effect, period of adoption, adjusted balance Accumulated other comprehensive income (loss)	Cumulative effect, period of adoption, adjusted balance Treasury stock
Balance, beginning of period at Dec. 31, 2018		$ 23,462	$ 135	$ 2,177	$ 31,788	$ 2,151	$ (12,789)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings		928	0	0	928	0	0
Unrealized foreign currency translation gains (losses) during period, net of income taxes		(1)	0	0	0	(1)	0
Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments		2,327	0	0	0	2,327	0
Unrealized gains (losses) on derivatives during period, net of income taxes		(2)	0	0	0	(2)	0
Pension liability adjustment during period, net of income taxes		6	0	0	0	6	0
Dividends to shareholders		(203)	0	0	(203)	0	0
Exercise of stock options		11	0	11	0	0	0
Share-based compensation		8	0	8	0	0	0
Purchases of treasury stock		(517)	0	0	0	0	(517)
Treasury stock reissued		30	0	12	0	0	18
Balance, end of period at Mar. 31, 2019		26,049	135	2,208	32,513	4,481	(13,288)
Balance, beginning of period at Dec. 31, 2018		23,462	135	2,177	31,788	2,151	(12,789)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings		2,523
Balance, end of period at Sep. 30, 2019		29,438	135	2,277	33,710	7,251	(13,935)
Balance, beginning of period at Mar. 31, 2019		26,049	135	2,208	32,513	4,481	(13,288)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings		817	0	0	817	0	0
Unrealized foreign currency translation gains (losses) during period, net of income taxes		393	0	0	0	393	0
Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments		1,494	0	0	0	1,494	0
Unrealized gains (losses) on derivatives during period, net of income taxes		(1)	0	0	0	(1)	0
Pension liability adjustment during period, net of income taxes		(3)	0	0	0	(3)	0
Dividends to shareholders		(200)	0	0	(200)	0	0
Exercise of stock options		12	0	12	0	0	0
Share-based compensation		15	0	15	0	0	0
Purchases of treasury stock		(358)	0	0	0	0	(358)
Treasury stock reissued		23	0	12	0	0	11
Balance, end of period at Jun. 30, 2019		28,241	135	2,247	33,130	6,364	(13,635)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings		777	0	0	777	0	0
Unrealized foreign currency translation gains (losses) during period, net of income taxes		(24)	0	0	0	(24)	0
Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments		915	0	0	0	915	0
Unrealized gains (losses) on derivatives during period, net of income taxes		(6)	0	0	0	(6)	0
Pension liability adjustment during period, net of income taxes		2	0	0	0	2	0
Dividends to shareholders		(197)	0	0	(197)	0	0
Exercise of stock options		3	0	3	0	0	0
Share-based compensation		15	0	15	0	0	0
Purchases of treasury stock		(311)	0	0	0	0	(311)
Treasury stock reissued		23	0	12	0	0	11
Balance, end of period at Sep. 30, 2019		29,438	135	2,277	33,710	7,251	(13,935)
Balance, beginning of period at Dec. 31, 2019		28,959	135	2,313	34,291	6,615	(14,395)							$ 29,751	$ 135	$ 2,313	$ 34,235	$ 7,463	$ (14,395)
Balance, beginning of period (Accounting Standards Update 2016-13) at Dec. 31, 2019	[1]							$ (56)	$ 0	$ 0	$ (56)	$ 0	$ 0
Balance, beginning of period (Accounting Standards Update 2019-04) at Dec. 31, 2019	[1]							848	0	0	0	848	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings		566	0	0	566	0	0
Unrealized foreign currency translation gains (losses) during period, net of income taxes		80	0	0	0	80	0
Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments		(3,353)	0	0	0	(3,353)	0
Unrealized gains (losses) on derivatives during period, net of income taxes		(2)	0	0	0	(2)	0
Pension liability adjustment during period, net of income taxes		0	0	0	0	0	0
Dividends to shareholders		(202)	0	0	(202)	0	0
Exercise of stock options		5	0	5	0	0	0
Share-based compensation		7	0	7	0	0	0
Purchases of treasury stock		(476)	0	0	0	0	(476)
Treasury stock reissued		26	0	9	0	0	17
Balance, end of period at Mar. 31, 2020		26,402	135	2,334	34,599	4,188	(14,854)
Balance, beginning of period at Dec. 31, 2019		28,959	135	2,313	34,291	6,615	(14,395)							$ 29,751	$ 135	$ 2,313	$ 34,235	$ 7,463	$ (14,395)
Balance, beginning of period (Accounting Standards Update 2016-13) at Dec. 31, 2019	[1]							(56)	0	0	(56)	0	0
Balance, beginning of period (Accounting Standards Update 2019-04) at Dec. 31, 2019	[1]							$ 848	$ 0	$ 0	$ 0	$ 848	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings		3,826
Balance, end of period at Sep. 30, 2020		32,479	135	2,383	37,460	7,917	(15,416)
Balance, beginning of period at Mar. 31, 2020		26,402	135	2,334	34,599	4,188	(14,854)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings		805	0	0	805	0	0
Unrealized foreign currency translation gains (losses) during period, net of income taxes		74	0	0	0	74	0
Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments		2,489	0	0	0	2,489	0
Unrealized gains (losses) on derivatives during period, net of income taxes		(1)	0	0	0	(1)	0
Pension liability adjustment during period, net of income taxes		0	0	0	0	0	0
Dividends to shareholders		(200)	0	0	(200)	0	0
Exercise of stock options		1	0	1	0	0	0
Share-based compensation		16	0	16	0	0	0
Purchases of treasury stock		(189)	0	0	0	0	(189)
Treasury stock reissued		23	0	7	0	0	16
Balance, end of period at Jun. 30, 2020		29,420	135	2,358	35,204	6,750	(15,027)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings		2,456	0	0	2,456	0	0
Unrealized foreign currency translation gains (losses) during period, net of income taxes		179	0	0	0	179	0
Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments		988	0	0	0	988	0
Unrealized gains (losses) on derivatives during period, net of income taxes		1	0	0	0	1	0
Pension liability adjustment during period, net of income taxes		(1)	0	0	0	(1)	0
Dividends to shareholders		(200)	0	0	(200)	0	0
Exercise of stock options		2	0	2	0	0	0
Share-based compensation		16	0	16	0	0	0
Purchases of treasury stock		(400)	0	0	0	0	(400)
Treasury stock reissued		18	0	7	0	0	11
Balance, end of period at Sep. 30, 2020		$ 32,479	$ 135	$ 2,383	$ 37,460	$ 7,917	$ (15,416)

[1] See Note 1 of the Notes to the Consolidated Financial Statements for the adoption of accounting guidance on January 1, 2020.

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Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019
Retained earnings
Dividends to shareholders (in dollars per share)	$ 0.28	$ 0.28	$ 0.28	$ 0.27	$ 0.27	$ 0.27

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Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net earnings	$ 3,826	$ 2,523
Adjustments to reconcile net earnings to net cash provided by operating activities:
Change in receivables and advance premiums	12	(36)
Capitalization of deferred policy acquisition costs	(870)	(1,057)
Amortization of deferred policy acquisition costs	914	967
Increase in policy liabilities	1,601	1,659
Change in income tax liabilities	(1,509)	(85)
Realized investment (gains) losses	525	147
Other, net	102	145
Net cash provided (used) by operating activities	4,601	4,263
Proceeds from investments sold or matured:
Available-for-sale fixed maturity securities	2,688	3,127
Equity securities	217	570
Held-to-maturity fixed maturity securities	3	437
Commercial mortgage and other loans	1,115	1,293
Costs of investments acquired:
Available for sale fixed maturity securities	(3,710)	(5,908)
Equity securities	(275)	(321)
Commercial mortgage and other loans	(2,554)	(2,634)
Other investments, net	(405)	(682)
Settlement of derivatives, net	15	13
Cash received (pledged or returned) as collateral, net	(420)	1,144
Other, net	(185)	15
Net cash provided (used) by investing activities	(3,511)	(2,946)
Cash flows from financing activities:
Purchases of treasury stock	(1,037)	(1,157)
Proceeds from borrowings	1,545	268
Principal payments under debt obligations	(350)	0
Dividends paid to shareholders	(580)	(579)
Change in investment-type contracts, net	(7)	0
Treasury stock reissued	27	38
Other, net	(29)	1
Net cash provided (used) by financing activities	(431)	(1,429)
Effect of exchange rate changes on cash and cash equivalents	8	(9)
Net change in cash and cash equivalents	667	(121)
Cash and cash equivalents, beginning of period	4,896	4,337
Cash and cash equivalents, end of period	5,563	4,216
Supplemental disclosures of cash flow information:
Income taxes paid	626	950
Interest paid	131	132
Noncash interest	47	38
Noncash financing activities:
Lease obligations	31	82
Associate stock bonus
Treasury stock issued for:
Treasury stock issued	12	12
Shareholder dividend reinvestment
Treasury stock issued for:
Treasury stock issued	22	21
Share-based compensation grants
Treasury stock issued for:
Treasury stock issued	$ 6	$ 5

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

9 Months Ended

Sep. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Description of Business

Aflac Incorporated (the Parent Company) and its subsidiaries (collectively, the Company) primarily sell supplemental health and life insurance in the United States (U.S.) and Japan. The Company’s operations consist of two reportable business segments: Aflac Japan and Aflac U.S. The Parent Company's primary insurance subsidiaries are Aflac Life Insurance Japan Ltd. (Aflac Japan) and American Family Life Assurance Company of Columbus (Aflac); Continental American Insurance Company (CAIC), branded as Aflac Group Insurance (AGI); American Family Life Assurance Company of New York (Aflac New York); Tier One Insurance Company (TOIC) and Argus Dental & Vision, Inc. (Argus), which provides a platform for Aflac Dental and Vision in the U.S. (collectively, Aflac U.S.). Aflac Japan's revenues, including net gains and losses on its investment portfolio, accounted for 68% and 69% of the Company's total revenues in the nine-month periods ended September 30, 2020 and 2019, respectively. The percentage of the Company's total assets attributable to Aflac Japan was 83% at September 30, 2020, compared with 84% at December 31, 2019.

Basis of Presentation

The Company prepares its financial statements in accordance with U.S. generally accepted accounting principles (U.S. GAAP). These principles are established primarily by the Financial Accounting Standards Board (FASB). In these Notes to the Consolidated Financial Statements, references to U.S. GAAP issued by the FASB are derived from the FASB Accounting Standards CodificationTM (ASC). The preparation of financial statements in conformity with U.S. GAAP requires the Company to make estimates based on currently available information when recording transactions resulting from business operations. The most significant items on the Company's balance sheet that involve a greater degree of accounting estimates and actuarial determinations subject to changes in the future are the valuation of investments and derivatives, deferred policy acquisition costs (DAC), liabilities for future policy benefits and unpaid policy claims, and income taxes. These accounting estimates and actuarial determinations are sensitive to market conditions, investment yields, mortality, morbidity, commission and other acquisition expenses, and terminations by policyholders. As additional information becomes available, or actual amounts are determinable, the recorded estimates will be revised and reflected in operating results. Although some variability is inherent in these estimates, the Company believes the amounts provided are adequate.

The unaudited consolidated financial statements include the accounts of the Parent Company, its subsidiaries and those entities required to be consolidated under applicable accounting standards. All material intercompany accounts and transactions have been eliminated.

In the opinion of management, the accompanying unaudited consolidated financial statements of the Company contain all adjustments, consisting of normal recurring accruals, which are necessary to fairly present the consolidated balance sheets as of September 30, 2020, and December 31, 2019, the consolidated statements of earnings and comprehensive income (loss) for the three-month and nine-month periods ended September 30, 2020 and 2019, the consolidated statement of shareholders' equity for the three-month periods ended March 31, 2020 and 2019, June 30, 2020 and 2019 and September 30, 2020 and 2019, and the consolidated statement of cash flows for the nine-month periods ended September 30, 2020 and 2019. Results of operations for interim periods are not necessarily indicative of results for the entire year. As a result, these financial statements should be read in conjunction with the financial statements and notes thereto included in the Company's annual report on Form 10-K for the year ended December 31, 2019 (2019 Annual Report).

COVID-19: On March 11, 2020, the World Health Organization declared the COVID-19 outbreak a global pandemic. The impact of COVID-19 on the Company continues to evolve, and its future effects remain uncertain. The Company continues to closely monitor the effects and risks of COVID-19 to assess its impact on economic conditions in Japan and the U.S. and on the Company's business, financial condition, results of operations, liquidity and capital position.

    Liquidity and Capital Resources

The Company entered the crisis having maintained capital ratios in Japan and the U.S. at a level designed to absorb a degree of market volatility. To further support liquidity and capital resources, the Parent Company, in

March 2020, issued four series of senior notes totaling ¥57.0 billion and, in April 2020, issued $1.0 billion in senior notes through public debt offerings under its U.S. shelf registration statement. The Company has available liquidity in its unsecured revolving credit facilities of $1.0 billion and ¥100.0 billion and currently has no borrowings under either of these facilities. In April 2020, Aflac increased its internal limit for Federal Home Loan Bank of Atlanta (FHLB) borrowings to $800 million, $300 million of which the Company has designated to be used for short-term liquidity needs and subject to qualified collateral availability and other conditions. The Company continues to evaluate other sources of liquidity including reinvestment cash flows and selling investments.

    Loan Modifications

On March 27, 2020, the Coronavirus, Aid, Relief, and Economic Security (CARES) Act, which provides relief from certain requirements under GAAP, was signed into law. Section 4013 of the CARES Act gives entities temporary relief from the accounting and disclosure requirements for troubled debt restructurings (TDRs) under ASC 310-40 in certain situations. On April 7, 2020, certain regulatory banking agencies, in consultation with the FASB, issued the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (Interagency statement) applicable for all entities, which offers practical expedients for evaluating whether loan modifications in response to the COVID-19 pandemic are treated as TDRs. The Company will apply relief granted under Section 4013 of the CARES Act and the Interagency statement with respect to certain qualifying loan modifications. For loan modifications that qualify under the CARES Act, TDR accounting and reporting is suspended through the period of the modification; however, the Company will continue to apply its existing non-accrual policies including consideration of the loan's past due status which is determined on the basis of the contractual terms of the loan. Once a loan has been contractually modified, the past due status is generally based on the updated terms including payment deferrals. As of September 30, 2020, loan modifications did not have a material impact on the Company's results of operations. See Note 3 of Notes to the Consolidated Financial Statements for additional details.

Reclassifications: Certain reclassifications have been made to prior-year amounts to conform to current-year reporting classifications. These reclassifications had no impact on net earnings or total shareholders' equity.

New Accounting Pronouncements

Recently Adopted Accounting Pronouncements

Standard	Description	Date of Adoption	Effect on Financial Statements or Other Significant Matters
Accounting Standards Update (ASU) 2020-04 Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting	In March 2020, the FASB issued amendments that provide optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships, and other transactions affected by the reference rate reform if certain criteria are met. The amendments in this ASU only apply to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. An entity may elect to apply the amendments as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020, up to the date that the financial statements are available to be issued. The amendments generally expire on December 31 2022, i.e., they do not apply to contract modifications made after December 31, 2022, new hedging relationships entered into after December 31, 2022, and hedging relationships evaluated for periods after December 31, 2022.	April 1, 2020	The adoption of the new guidance did not have an impact on the Company’s financial statements. The Company will continue to evaluate the impacts of reference rate reform on contract modifications and hedging relationships through December 31, 2022.
ASU 2019-04 Codification Improvements to Topic 326, Financial Instruments - Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments	In April 2019, the FASB issued Codification improvements to clarify and correct certain areas of guidance amended as part of ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities; ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments; and ASU 2017-12, Derivative and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The most significant of these improvements to the Company was related to the Codification improvement to ASU 2017-12 and the clarification that a one-time reclassification of assets that are eligible to be hedged under the last-of-layer method (i.e., certain pre-payable securities) from held-to-maturity to available-for-sale is allowed under the new hedge accounting guidance and would not impact the Company’s ability to continue to classify other bonds as held-to-maturity. The other amendments related to ASU 2017-12 and 2016-01 are either not significant, or were previously implemented as part of the related ASU adoptions. Applicable amendments related to ASU 2016-13 are discussed within the recent adoption of that update below.	January 1, 2020	The adoption of this guidance resulted in a reclassification of $6.9 billion (at amortized cost) of pre-payable fixed-maturity securities from the held-to-maturity to the available-for-sale category. The reclassification resulted in recording in accumulated other comprehensive income a net unrealized gain of $848 million on an after-tax basis, based on the securities’ fair values on the reclassification date. The reclassification impacted the adoption of ASU 2016-13 (see ASU 2016-13 below for additional details).

Standard	Description	Date of Adoption	Effect on Financial Statements or Other Significant Matters
ASU 2018-17 Consolidation: Targeted Improvements to Related Party Guidance for Variable Interest Entities	In October 2018, the FASB issued targeted improvements which provide that indirect interests held through related parties under common control should be considered on a proportional basis for determining whether fees paid to decision makers and service providers are variable interests.	January 1, 2020	The adoption of this guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures.
ASU 2018-13 Fair Value Measurement, Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement	In August 2018, the FASB issued amendments to the disclosure requirements on fair value measurements. The amendments remove, modify, and add certain disclosures.	January 1, 2020	The adoption of this guidance did not have a significant impact on the Company’s financial position, results of operations, or disclosures.
ASU 2017-04 Intangibles - Goodwill and Other: Simplifying the Test for Goodwill Impairment	In January 2017, the FASB issued amendments simplifying the subsequent measurement of goodwill. An entity, under this update, is no longer required to perform a hypothetical purchase price allocation to measure goodwill impairment. Instead, the entity should perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount.	January 1, 2020	The adoption of this guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures.
ASU 2016-13 Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments as clarified and amended by: ASU 2019-04, Codification Improvements to Topic 326, Financial Instruments - Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments, ASU 2019-05, Financial Instruments - Credit Losses (Topic 326), Targeted Transition Relief and ASU 2019-11, Codification Improvements to Topic 326, Financial Instruments- Credit Losses	In June 2016, the FASB issued amendments that require a financial asset (or a group of financial assets) measured at amortized cost to be presented net of an allowance for credit losses (Credit Losses ASU) in order to reflect the amount expected to be collected on the financial asset(s). The measurement of expected credit losses is amended by replacing the incurred loss impairment methodology with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information. Credit losses on available-for-sale debt securities is measured in a manner similar to prior U.S. GAAP; however, the amendments require that credit losses be presented as an allowance rather than as a write-down. Other amendments include changes to the balance sheet presentation and interest income recognition of purchased financial assets with a more-than-insignificant credit deterioration since origination (PCD financial assets).	January 1, 2020	The Company recorded a cumulative effect adjustment with a decrease to beginning 2020 retained earnings of $56 million, net of taxes. See Note 3 of the Notes to the Consolidated Financial Statements for credit loss disclosures. The following line items in the consolidated balance sheets were most significantly impacted by the adoption of the new accounting standard: •Fixed maturity securities held to maturity, at amortized cost •Commercial mortgage and other loans •Reinsurance recoverable, included within Other assets

Accounting Pronouncements Pending Adoption

Standard	Description	Effect on Financial Statements or Other Significant Matters
ASU 2020-01 Clarifying the interactions between Topic 321, Topic 323, and Topic 815	In January 2020, the FASB issued amendments clarifying that an entity should consider observable transactions that require it to either apply or discontinue the equity method of accounting for the purposes of applying the measurement alternative in accordance with Topic 321 immediately before applying or upon discontinuing the equity method. In addition, the amendments clarify that for the purpose of applying certain derivative guidance in Topic 815, an entity should not consider whether, upon the settlement of the forward contract or exercise of the purchased option, individually or with existing investments, the underlying securities would be accounted for under the equity method in Topic 323 or the fair value option in accordance with the financial instruments guidance in Topic 825. An entity also would evaluate the remaining characteristics in Topic 815 to determine the accounting for those forward contracts and purchased options. The amendments are effective for public business entities for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. Early adoption is permitted.	The adoption of this guidance is not expected to have a significant impact on the Company's financial position, results of operations, or disclosures.
ASU 2018-12 Financial Services - Insurance, Targeted Improvements to the Accounting for Long-Duration Contracts as clarified and amended by: ASU 2019-09 Financial Services - Insurance (Topic 944): Effective Date	In August 2018, the FASB issued amendments that will significantly change how insurers account for long-duration contracts. The amendments will change existing recognition, measurement, presentation, and disclosure requirements. Issues addressed in the new guidance include: 1) a requirement to review and, if there is a change, update assumptions for the liability for future policy benefits at least annually, and to update the discount rate assumption quarterly, 2) accounting for market risk benefits at fair value, 3) simplified amortization for deferred acquisition costs, and 4) enhanced financial statement presentation and disclosures. In November 2019, the FASB issued an amendment extending the effective date for public business entities that meet the definition of an SEC filer, excluding entities eligible to be small reporting companies as defined by the SEC, by one year. The amendments are now effective for the Company for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2021. Early application of the amendments is permitted. In September 2020, the FASB Board voted in favor of providing an additional year deferral for all insurance entities due to the impact of COVID-19. It is expected that this Update will be finalized in the fourth quarter of 2020 which would result in an effective date for Aflac of January 1, 2023.	The Company is thoroughly evaluating the impact of adoption and expects that the adoption will have a significant impact on the Company’s financial position, results of operations, and disclosures. The Company anticipates that the requirement to update assumptions for liability for future policy benefits will have a significant impact on its results of operations, systems, processes and controls while the requirement to update the discount rate will have a significant impact on its equity. The Company has no products with market risk benefits. The Company does not expect to early adopt the updated standard and has selected a modified retrospective transition method.

Recent accounting guidance not discussed above is not applicable, did not have, or is not expected to have a material impact to the Company's business. 

For additional information on new accounting pronouncements and recent accounting guidance and their impact, if any, on the Company's financial position, results of operations or disclosures, see Note 1 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report.

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BUSINESS SEGMENT INFORMATION

9 Months Ended

Sep. 30, 2020

Segment Reporting [Abstract]

BUSINESS SEGMENT INFORMATION

BUSINESS SEGMENT INFORMATION

The Company consists of two reportable insurance business segments: Aflac Japan and Aflac U.S., both of which sell supplemental health and life insurance. In addition, operating business units that are not individually reportable and business activities, including reinsurance retrocession activities, not included in Aflac Japan or Aflac U.S. are included in Corporate and other.

The Company does not allocate corporate overhead expenses to business segments. Consistent with U.S. GAAP accounting guidance for segment reporting, the Company evaluates and manages its business segments using a financial

performance measure called pretax adjusted earnings. Adjusted earnings are adjusted revenues less benefits and adjusted expenses. The adjustments to both revenues and expenses account for certain items that cannot be predicted or that are outside management’s control. Adjusted revenues are U.S. GAAP total revenues excluding net investment gains and losses, except for amortized hedge costs/income related to foreign currency exposure management strategies and net interest cash flows from derivatives associated with certain investment strategies. Adjusted expenses are U.S. GAAP total acquisition and operating expenses including the impact of interest cash flows from derivatives associated with notes payable but excluding any nonrecurring or other items not associated with the normal course of the Company’s insurance operations and that do not reflect Aflac’s underlying business performance. The Company excludes income taxes related to operations to arrive at pretax adjusted earnings. Information regarding operations by reportable segment and Corporate and other, follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In millions)	2020		2019		2020		2019
Revenues:
Aflac Japan:
Net earned premiums	$	3,168	$	3,241	$	9,476	$	9,593
Adjusted net investment income (1),(2)	663		659		1,939		1,878
Other income	11		12		32		34
Total adjusted revenue Aflac Japan	3,842		3,912		11,447		11,505
Aflac U.S.:
Net earned premiums	1,407		1,445		4,348		4,365
Net investment income (3)	175		183		523		540
Other income	24		2		78		6
Total adjusted revenue Aflac U.S.	1,606		1,630		4,949		4,911
Corporate and other (4)	87		97		292		287
Total adjusted revenues	5,535		5,639		16,688		16,703
Net investment gains (losses) (1),(2),(3),(4)	130		(103)		(454)		1
Total revenues	$	5,665	$	5,536	$	16,234	$	16,704

(1) Amortized hedge costs of $51 and $66 for the three-month periods and $155 and $191 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies have been reclassified from net investment gains (losses) and reported as a deduction from net investment income when analyzing operations.

(2) Net interest cash flows from derivatives associated with certain investment strategies of $6 and $(4) for the three-month periods and $5 and $(18) for the nine-month periods ended September 30, 2020 and 2019, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

(3) Net interest cash flows from derivatives associated with certain investment strategies of $1 for the three-month period and $2 for the nine-month period ended September 30, 2020, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

(4) Amortized hedge income of $22 and $21 for the three-month periods $78 and $61 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies has been reclassified from net investment gains (losses) and reported as an increase to net investment income when analyzing operations.

	Three Months Ended September 30,				Nine Months Ended September 30,
(In millions)	2020		2019		2020		2019
Pretax adjusted earnings:
Aflac Japan (1),(2)	$	747	$	838	$	2,442	$	2,504
Aflac U.S. (3)	329		335		1,082		996
Corporate and other (4),(5)	(39)		(17)		(69)		(62)
Pretax adjusted earnings (6)	1,037		1,156		3,455		3,438
Net investment gains (losses) (1),(2),(3),(4),(5)	117		(120)		(497)		(49)
Other income (loss)	(1)		0		(16)		(1)
Total earnings before income taxes	$	1,153	$	1,036	$	2,942	$	3,388
Income taxes applicable to pretax adjusted earnings	$	43	$	293	$	659	$	880
Effect of foreign currency translation on after-tax adjusted earnings	3		15		17		2

(1) Amortized hedge costs of $51 and $66 for the three-month periods and $155 and $191 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies have been reclassified from net investment gains (losses) and reported as a deduction from net investment income when analyzing operations.

(2) Net interest cash flows from derivatives associated with certain investment strategies of $6 and $(4) for the three-month periods and $5 and $(18) for the nine-month periods ended September 30, 2020 and 2019, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

(3) Net interest cash flows from derivatives associated with certain investment strategies of $1 for the three-month period and $2 for the nine-month period ended September 30, 2020, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

(4) Amortized hedge income of $22 and $21 for the three-month periods and $78 and $61 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies has been reclassified from net investment gains (losses) and reported as an increase in net investment income when analyzing operations.

(5) A gain of $13 and $16 for three-month periods and $43 and $50 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to the interest rate component of the change in fair value of foreign currency swaps on notes payable has been reclassified from net investment gains (losses) and included in adjusted earnings when analyzing operations.

(6) Includes $44 and $34 for the three-month periods and $122 and $100 for the nine-month periods ended September 30, 2020, and 2019, respectively, of interest expense on debt.

Assets were as follows:

(In millions)	September 30, 2020			December 31, 2019
Assets:
Aflac Japan		$	133,995		$	127,523
Aflac U.S.		22,621			20,945
Corporate and other		4,339			4,300
Total assets		$	160,955		$	152,768

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INVESTMENTS

9 Months Ended

Sep. 30, 2020

Investments [Abstract]

INVESTMENTS

INVESTMENTS

Investment Holdings

The amortized cost for the Company's investments in fixed maturity securities, the cost for equity securities and the fair values of these investments are shown in the following tables.

	September 30, 2020
(In millions)	Amortized Cost		Allowance for Credit Losses		Gross Unrealized Gains		Gross Unrealized Losses		Fair   Value
Securities available for sale, carried at fair value through other comprehensive income:
Fixed maturity securities:
Yen-denominated:
Japan government and agencies	$	32,646	$	0	$	4,297	$	42	$	36,901
Municipalities	1,013		0		305		3		1,315
Mortgage- and asset-backed securities	337		0		28		1		364
Public utilities	4,585		0		960		1		5,544
Sovereign and supranational	1,054		0		82		4		1,132
Banks/financial institutions	7,505		0		683		180		8,008
Other corporate	7,934		0		1,484		86		9,332
Total yen-denominated	55,074		0		7,839		317		62,596
U.S. dollar-denominated:
U.S. government and agencies	276		0		18		0		294
Municipalities	1,143		0		161		0		1,304
Mortgage- and asset-backed securities	344		0		10		1		353
Public utilities	3,942		0		924		12		4,854
Sovereign and supranational	230		0		66		6		290
Banks/financial institutions	2,956		0		738		6		3,688
Other corporate	25,973		38		4,110		296		29,749
Total U.S. dollar-denominated	34,864		38		6,027		321		40,532
Total securities available for sale	$	89,938	$	38	$	13,866	$	638	$	103,128

	December 31, 2019
(In millions)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair   Value
Securities available for sale, carried at fair value through other comprehensive income:
Fixed maturity securities:
Yen-denominated:
Japan government and agencies	$	30,929	$	5,169	$	0	$	36,098
Municipalities	516		116		3		629
Mortgage- and asset-backed securities	229		25		0		254
Public utilities	1,855		406		0		2,261
Sovereign and supranational	680		50		0		730
Banks/financial institutions	6,152		700		86		6,766
Other corporate	5,323		944		24		6,243
Total yen-denominated	45,684		7,410		113		52,981
U.S dollar-denominated:
U.S. government and agencies	293		9		0		302
Municipalities	1,077		141		0		1,218
Mortgage- and asset-backed securities	149		7		0		156
Public utilities	3,804		725		10		4,519
Sovereign and supranational	239		73		0		312
Banks/financial institutions	2,879		646		4		3,521
Other corporate	25,246		3,255		248		28,253
Total U.S. dollar-denominated	33,687		4,856		262		38,281
Total securities available for sale	$	79,371	$	12,266	$	375	$	91,262

	September 30, 2020
(In millions)	Amortized Cost		Allowance for Credit Losses		Net Carrying Amount		Gross Unrealized Gains		Gross Unrealized Losses		Fair   Value
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Yen-denominated:
Japan government and agencies	$	22,941	$	3	$	22,938	$	5,564	$	0	$	28,502
Municipalities	370		0		370		120		0		490
Public utilities	47		1		46		14		0		60
Sovereign and supranational	564		5		559		164		0		723
Other corporate	24		0		24		8		0		32
Total yen-denominated	23,946		9		23,937		5,870		0		29,807
Total securities held to maturity	$	23,946	$	9	$	23,937	$	5,870	$	0	$	29,807

	December 31, 2019
(In millions)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Yen-denominated:
Japan government and agencies	$	22,241	$	6,050	$	0	$	28,291
Municipalities	821		262		0		1,083
Mortgage- and asset-backed securities	16		1		0		17
Public utilities	2,535		419		0		2,954
Sovereign and supranational	1,123		197		0		1,320
Banks/financial institutions	916		105		3		1,018
Other corporate	2,433		485		7		2,911
Total yen-denominated	30,085		7,519		10		37,594
Total securities held to maturity	$	30,085	$	7,519	$	10	$	37,594

(In millions)	September 30, 2020			December 31, 2019
Equity securities, carried at fair value through net earnings:	Fair Value			Fair Value
Equity securities:
Yen-denominated		$	630		$	658
U.S. dollar-denominated		145			144
Total equity securities		$	775		$	802

The methods of determining the fair values of the Company's investments in fixed maturity securities and equity securities, including a refinement in valuation methodology for determining fair value of privately issued securities as of September 30, 2020, are described in Note 5.

During the second and third quarter of 2020, the Company did not reclassify any investments from the held-to-maturity category to the available-for-sale category. During the first quarter of 2020, as a result of the adoption of ASU 2019-04 discussed in Note 1, the Company reclassified $6.9 billion (at amortized cost) of pre-payable fixed-maturity securities from the held-to-maturity category to the available-for-sale category. This reclassification resulted in recording in accumulated other comprehensive income a net unrealized gain of $848 million on an after-tax basis. During the first nine months of 2019, the Company did not reclassify any investments from the held-to-maturity category to the available-for-sale category.

Contractual and Economic Maturities

The contractual and economic maturities of the Company's investments in fixed maturity securities at September 30, 2020, were as follows:

(In millions)	Amortized Cost (1)			Fair Value
Available for sale:
Due in one year or less		$	1,031		$	1,053
Due after one year through five years		8,938			9,175
Due after five years through 10 years		13,159			15,092
Due after 10 years		66,091			77,091
Mortgage- and asset-backed securities		681			717
Total fixed maturity securities available for sale		$	89,900		$	103,128
Held to maturity:
Due in one year or less		$	0		$	0
Due after one year through five years		0			0
Due after five years through 10 years		251			292
Due after 10 years		23,686			29,515
Mortgage- and asset-backed securities		0			0
Total fixed maturity securities held to maturity		$	23,937		$	29,807

(1) Net of allowance for credit losses

Economic maturities are used for certain debt instruments with no stated maturity where the expected maturity date is based on the combination of features in the financial instrument such as the right to call or prepay obligations or changes in coupon rates.

Investment Concentrations

The Company's process for investing in credit-related investments begins with an independent approach to underwriting each issuer's fundamental credit quality. The Company evaluates independently those factors that it believes could influence an issuer's ability to make payments under the contractual terms of the Company's instruments. This includes a thorough analysis of a variety of items including the issuer's country of domicile (including political, legal, and financial considerations); the industry in which the issuer competes (with an analysis of industry structure, end-market dynamics, and regulation); company specific issues (such as management, assets, earnings, cash generation, and capital needs); and contractual provisions of the instrument (such as financial covenants and position in the capital structure). The Company further evaluates the investment considering broad business and portfolio management objectives, including asset/liability needs, portfolio diversification, and expected income.

Investment exposures that individually exceeded 10% of shareholders' equity were as follows:

	September 30, 2020			December 31, 2019
(In millions)	Credit Rating	Amortized Cost	Fair Value	Credit Rating	Amortized Cost	Fair Value
Japan National Government(1)	A+	$54,078	$63,588	A+	$51,726	$62,584

(1)Japan Government Bonds (JGBs) or JGB-backed securities

Net Investment Gains and Losses

Information regarding pretax net gains and losses from investments is as follows:

	Three Months Ended September 30,					Nine Months Ended September 30,
(In millions)	2020		2019			2020		2019
Net investment gains (losses):
Sales and redemptions:
Fixed maturity securities available for sale:
Gross gains from sales	$	7	$	11		$	28	$	55
Gross losses from sales	0		(18)			(46)		(29)
Foreign currency gains (losses) on sales and redemptions	(5)		(21)			(39)		(12)
Total sales and redemptions	2		(28)			(57)		14
Equity securities	12		18			(106)		65
Loan loss reserves (1)	0		(5)			0		(8)
Credit losses:
Fixed maturity securities available for sale	0		(13)		(2)	(75)		(13)		(2)
Fixed maturity securities held to maturity	0		0			1		0
Commercial mortgage and other loans	78		0			(86)		0
Loan commitments	64		0			(17)		0
Reinsurance recoverables and other	0		0			(2)		0
Total credit losses	142		(13)			(179)		(13)
Derivatives and other:
Derivative gains (losses)	138		(146)			173		(24)
Foreign currency gains (losses)	(186)		21			(356)		(181)
Total derivatives and other	(48)		(125)			(183)		(205)
Total net investment gains (losses)	$	108	$	(153)		$	(525)	$	(147)

(1) U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only

(2) Includes other-than-temporary impairment losses for prior year

The unrealized holding gains, net of losses, recorded as a component of net investment gains and losses for the three-month period ended September 30, 2020, that relate to equity securities still held at the September 30, 2020 reporting date, were $31 million. The unrealized holding losses, net of gains, recorded as a component of net investment gains and losses for the nine-month period ended September 30, 2020, that relate to equity securities still held at the September 30, 2020 reporting date, were $109 million.

Unrealized Investment Gains and Losses

Effect on Shareholders’ Equity

The net effect on shareholders’ equity of unrealized gains and losses from fixed maturity securities was as follows:

(In millions)	September 30, 2020			December 31, 2019
Unrealized gains (losses) on securities available for sale		$	13,228		$	11,891
Deferred income taxes		(3,708)			(3,343)
Shareholders’ equity, unrealized gains (losses) on fixed maturity securities		$	9,520		$	8,548

Gross Unrealized Loss Aging

The following tables show the fair values and gross unrealized losses of the Company's available-for-sale investments for the period ended September 30, 2020 and available-for-sale and held-to-maturity investments for prior periods that were in an unrealized loss position, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position.

	September 30, 2020
	Total						Less than 12 months						12 months or longer
(In millions)	Fair Value			Unrealized Losses			Fair Value			Unrealized Losses			Fair Value			Unrealized Losses
Fixed maturity securities available for sale:
Japan government and agencies:
Yen-denominated		$	1,997		42			1,997			42			0			0
Municipalities:
Yen-denominated		74			3			60			2			14			1
Mortgage- and asset- backed securities:
U.S. dollar-denominated		67			1			67			1			0			0
Yen-denominated		36			1			36			1			0			0
Public utilities:
U.S. dollar-denominated		342			12			210			6			132			6
Yen-denominated		214			1			214			1			0			0
Sovereign and supranational:
U.S. dollar-denominated		36			6			36			6			0			0
Yen-denominated		35			4			35			4			0			0
Banks/financial institutions:
U.S. dollar-denominated		103			6			65			1			38			5
Yen-denominated		2,859			180			1,853			102			1,006			78
Other corporate:
U.S. dollar-denominated		4,574			296			2,200			76			2,374			220
Yen-denominated		1,095			86			911			81			184			5
Total		$	11,432		$	638		$	7,684		$	323		$	3,748		$	315

	December 31, 2019
	Total						Less than 12 months						12 months or longer
(In millions)	Fair Value			Unrealized Losses			Fair Value			Unrealized Losses			Fair Value			Unrealized Losses
Fixed maturity securities:
Municipalities:
Yen-denominated		$	80		$	3		$	80		$	3		$	0		$	0
Public utilities:
U.S. dollar-denominated		306			10			69			2			237			8
Banks/financial institutions:
U.S. dollar-denominated		79			4			18			0			61			4
Yen-denominated		1,828			89			1,828			89			0			0
Other corporate:
U.S. dollar-denominated		4,261			248			792			53			3,469			195
Yen-denominated		636			31			636			31			0			0
Total		$	7,190		$	385		$	3,423		$	178		$	3,767		$	207

Analysis of Securities in Unrealized Loss Positions

The unrealized losses on the Company's fixed maturity securities investments have been primarily related to general market changes in interest rates, foreign exchange rates, and/or the levels of credit spreads rather than specific concerns with the issuer's ability to pay interest and repay principal.

For any significant declines in fair value of its fixed maturity securities, the Company performs a more focused review of the related issuers' credit profile. For corporate issuers, the Company evaluates their assets, business profile including industry dynamics and competitive positioning, financial statements and other available financial data. For non-corporate issuers, the Company analyzes all sources of credit support, including issuer-specific factors. The Company utilizes information available in the public domain and, for certain private placement issuers, from consultations with the issuers directly. The Company also considers ratings from Nationally Recognized Statistical Rating Organizations (NRSROs), as well as the specific characteristics of the security it owns including seniority in the issuer's capital structure, covenant protections, or other relevant features. From these reviews, the Company evaluates the issuers' continued ability to service the Company's investment through payment of interest and principal.

Assuming no credit-related factors develop, unrealized gains and losses on fixed maturity securities are expected to diminish as investments near maturity. Based on its credit analysis, the Company believes that the issuers of its fixed maturity investments in the sectors shown in the table above have the ability to service their obligations to the Company, and the Company does not intend to sell the investments and it is not more likely than not that the Company will be required to sell the investments before recovery of their amortized cost bases, which may be at maturity.

However, the Company has identified certain available-for-sale fixed maturity securities where the amortized cost basis exceeds the present value of the cash flows expected to be collected due to credit related factors and as a result, a credit allowance has been calculated. As of September 30, 2020, the Company held an allowance of $38 million. Refer to the Credit Losses section below for additional information.

Commercial Mortgage and Other Loans

The Company classifies its transitional real estate loans (TREs), commercial mortgage loans (CMLs) and middle market loans (MMLs) as held-for-investment and includes them in the commercial mortgage and other loans line on the consolidated balance sheets. The Company carries them on the balance sheet at amortized cost less an estimated allowance for credit losses.

The following table reflects the composition of the carrying value for commercial mortgage and other loans by property type as of the periods presented.

(In millions)	September 30, 2020				December 31, 2019
	Amortized Cost		% of Total		Amortized Cost			% of Total
Commercial Mortgage and other loans:
Transitional real estate loans:
Office	$	2,146	19.5	%	$	1,800		18.7	%
Retail	179		1.6		131			1.4
Apartments/Multi-Family	2,000		18.2		2,085			21.7
Industrial	145		1.3		256			2.7
Hospitality	1,093		10.0		1,036			10.8
Other	81		0.7		164			1.7
Total transitional real estate loans	5,644		51.3		5,472			57.0
Commercial mortgage loans:
Office	403		3.7		410			4.3
Retail	342		3.1		348			3.5
Apartments/Multi-Family	594		5.4		569			5.9
Industrial	393		3.6		383			4.0
Total commercial mortgage loans	1,732		15.8		1,710			17.7
Middle market loans	3,611		32.9		2,432			25.3
Total commercial mortgage and other loans	$	10,987	100.0	%	$	9,614		100.0	%
Allowance for credit losses	(165)				(45)		(1)
Total net commercial mortgage and other loans	$	10,822			$	9,569

(1) U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only.

Commercial mortgage and transitional real estate loans were secured by properties entirely within the U.S. (with the largest concentrations in California (21%), Texas (14%) and Florida (11%)). Middle market loans are issued only to companies domiciled within the U.S. and Canada.

Transitional Real Estate Loans

Transitional real estate loans are commercial mortgage loans that are typically relatively short-term floating rate instruments secured by a first lien on the property. These loans provide funding for properties undergoing a change in their physical characteristics and/or economic profile and do not typically require any principal repayment prior to the maturity date. This loan portfolio is generally considered to be investment grade. As of September 30, 2020, the Company had $657 million in outstanding commitments to fund transitional real estate loans. These commitments are contingent on the final underwriting and due diligence to be performed.

Commercial Mortgage Loans

Commercial mortgage loans are typically fixed rate loans on commercial real estate with partial repayment of principal over the life of the loan with the remaining outstanding principal being repaid upon maturity. This loan portfolio is generally considered higher quality investment grade loans. As of September 30, 2020, the Company had no outstanding commitments to fund commercial mortgage loans.

Middle Market Loans

Middle market loans are typically first lien senior secured cash flow loans to small to mid-size companies for working capital, refinancing, acquisition, and recapitalization. These loans are generally considered to be below investment grade. The carrying value for middle market loans included $26 million and $99 million for a short term credit facility that is reflected in other liabilities on the consolidated balance sheets, as of September 30, 2020, and December 31, 2019, respectively.

As of September 30, 2020, the Company had commitments of approximately $2.3 billion of which $2.0 billion was a result of a new agreement with an external manager during the first quarter of 2020 to fund future middle market loans. These commitments are contingent upon the availability of middle market loans that meet the Company's underwriting criteria.

Credit Losses

Effective January 1, 2020, the Company adopted ASC 326: Financial Instruments - Credit Losses. The newly adopted accounting standard requires the Company to estimate an expected lifetime credit loss on financial assets including short-term receivables, held-to-maturity fixed maturity securities, loan receivables, loan commitments and reinsurance recoverables. For the Company’s available-for-sale fixed maturity securities, the newly adopted guidance requires an entity to evaluate estimated credit losses only when the fair value of the available-for-sale fixed maturity security is below its amortized cost basis. Credit loss changes are recorded as a component of net investment gains and losses for the Company’s held-to-maturity and available-for-sale securities, loan receivables, loan commitments and reinsurance recoverables. The Company’s off-balance sheet credit exposure is primarily attributable to loan commitments that are not unconditionally cancellable. The Company considers the contractual period of exposure to credit risk, the likelihood that funding will occur, the risk of loss, and the current conditions and expectations of future economic conditions to develop the estimate of expected credit losses. The Company records the estimate of expected credit losses for certain loan commitments within other liabilities in the consolidated balance sheet.

Write-offs and partial write-offs are recorded as a reduction to the amortized cost of the loan or fixed maturity security balance and a reduction to the credit allowance.

The Company’s held-to-maturity fixed maturity portfolio includes Japan Government and Agency securities of $22.8 billion amortized cost as of September 30, 2020 that meet the requirements for zero-credit-loss expectation and therefore these asset classes have been excluded from the current expected credit loss measurement.

The Company has elected not to measure an allowance on accrued interest income for all asset types, because the uncollectible accrued interest receivable is written off in a timely manner. The Company writes off accrued interest when it is more than ninety days past due. The Company has elected to write off accrued interest by reversing interest income, which is a component of net investment income, in the consolidated statement of earnings.

The Company designates nonaccrual status for a nonperforming debt security or a loan that is not generating its stated interest rate because of nonpayment of periodic interest by the borrower. The Company applies the cash basis method to record any payments received on non-accrual assets. The Company resumes the accrual of interest on fixed maturity securities and loans that are currently making contractual payments or for those that are not current where the borrower has paid timely (less than 30 days outstanding).

The Company records due premium receivable net of current expected credit losses in the receivables line item in the consolidated balance sheet, utilizing an aging methodology based on historical loss information, adjusted for current conditions and reasonable and supportable forecasts. Changes in the estimated credit losses related to premium receivable are recorded in net premiums in the consolidated statement of earnings.

Credit Quality Indicators

For TREs, the Company’s key credit quality indicator is loan-to-value (LTV). Given that TRE loans involve properties undergoing renovation or construction, loan-to-value provides the most insight into the credit risk of the loan. The Company monitors the performance of the loans periodically, but not less frequently than quarterly.

For CMLs, the Company’s key credit quality indicators include LTV and debt service coverage ratios (DSCR). LTV is calculated by dividing the current outstanding loan balance by the most recent estimated property value. DSCR is the most recently available operating income of the underlying property compared to the required debt service of the loan.

For MMLs and held-to-maturity fixed maturity securities, the Company’s key credit quality indicator is credit ratings. The Company’s held-to-maturity portfolio is composed of investment grade securities that are senior unsecured instruments, while its MMLs generally have below-investment-grade ratings but are typically senior secured instruments. The Company monitors the credit ratings periodically, but not less frequently than quarterly.

For the Company’s reinsurance recoverable balance, the key credit quality indicator is the credit rating of the Company’s reinsurance counterparty. The Company uses external credit ratings focused on the reinsurer’s financial strength and credit worthiness. The Company's counterparties are rated A+. The Company monitors the credit ratings periodically, but not less frequently than quarterly.

The following tables present as of September 30, 2020 the amortized cost basis of TREs, CMLs and MMLs by year of origination and credit quality indicator.

Transitional Real Estate Loans
(In millions)	2020		2019		2018		2017		2016		Prior		Total
Loan-to-Value Ratio:
0%-59.99%	$	48	$	529	$	382	$	158	$	20	$	57	$	1,194
60%-69.99%	324		811		825		440		0		0		2,400
70%-79.99%	132		767		851		224		14		0		1,988
80% or greater	26		36		0		0		0		0		62
Total	$	530	$	2,143	$	2,058	$	822	$	34	$	57	$	5,644

Commercial Mortgage Loans
(In millions)	2020		2019		2018		2017		2016		Prior		Total		Weighted-Average DSCR
Loan-to-Value Ratio:
0%-59.99%	$	32	$	402	$	101	$	69	$	553	$	0	$	1,157	2.63
60%-69.99%	16		224		70		0		184		0		494		1.93
70%-79.99%	0		33		0		0		22		0		55		1.79
80% or greater	0		0		0		0		26		0		26		1.66
Total	48		659		171		69		785		0		1,732		2.39
Weighted Average DSCR	1.98		2.53		2.23		2.56		2.32		0.00		2.39

Middle Market Loans
(In millions)	2020		2019		2018		2017		2016		Prior		Revolving Loans		Total
Credit Ratings:
BBB	$	25	$	117	$	62	$	56	$	5	$	0	$	16	$	281
BB	201		235		237		84		37		15		86		895
B	267		740		315		235		119		24		185		1,885
CCC	15		98		121		96		37		31		90		488
CC and lower	0		0		19		39		3		0		1		62
Total	$	508	$	1,190	$	754	$	510	$	201	$	70	$	378	$	3,611

Allowance for Credit Losses

The Company calculates its allowance for credit losses for held-to-maturity fixed maturity securities, loan receivables, loan commitments and reinsurance recoverable by grouping assets with similar risk characteristics when there is not a specific expectation of a loss for an individual asset. For held-to-maturity fixed maturity securities, MMLs, and MML commitments, the Company groups assets by credit ratings, industry, and country. The Company groups CMLs and TREs and respective loan commitments by property type, property location and the property’s loan-to-value and debt service coverage ratios. The credit allowance for the reinsurance recoverable balance is estimated using a probability-of-default (PD) / loss-given-default (LGD) method.

The Company’s methodology for estimating credit losses for available-for-sale fixed maturity securities utilizes the discounted cash flow model, based on past events, current market conditions and future economic conditions, as well as industry analysis and credit ratings of the fixed maturity securities. In addition, the Company evaluates the specific issuer’s probability of default and expected recovery of its position in the event of default based on the underlying financial condition and assets of the borrower as well as seniority and/or security of other debt holders in the issuer when developing management’s best estimate of expected cash flows.

The credit allowance for held-to-maturity fixed maturity securities and loan receivables is estimated using a PD / LGD method, discounted for the time value of money. For held-to-maturity fixed maturity securities, available-for-sale fixed maturity securities and loan receivables, the Company includes the change in present value due to the passage of time in the change in the allowance for credit losses. The Company’s methodology for estimating credit losses utilizes the contractual maturity date of the financial asset, adjusted when necessary to reflect the expected timing of repayment (such as prepayment options, renewal options, call options, or extension options). The Company applies reasonable and supportable forecasts of macroeconomic variables that impact the determination of PD/LGD over a two-year period for held-to-maturity fixed maturity securities and MMLs. The Company reverts to historical loss information over one year, following the two-year forecast period. For the CML and TRE portfolio, the Company applies reasonable and supportable forecasts of macroeconomic variables as well as national and local real-estate market factors to estimate future credit losses where the market factors revert back to historical levels over time with the period being dependent on current market conditions, projected market conditions and difference in the current and historical market levels for each factor. The Company continuously monitors the estimation methodology, due to changes in portfolio composition, changes in underwriting practices and significant events or conditions and makes adjustments as necessary.

A TDR involves a situation where the Company grants a concession to a borrower that the Company would not otherwise have considered due to the borrower’s financial difficulties. The Company has elected to apply Section 4013 of the CARES Act, or the Interagency statement which temporarily suspends TDR accounting guidance for loan modifications, such as extensions or deferrals, related to COVID-19. The relief provided by the CARES Act applies to loan modifications made between March 1, 2020 and the earlier of (i) December 31, 2020 or (ii) 60 days after the end of the COVID-19 national emergency, as determined by the Executive Branch, whereas the Interagency statement does not specify a time horizon.

The Company granted certain loan modifications in its MML and TRE portfolios due to COVID-19 during the nine months ended September 30, 2020. The nature of the modifications varied in scope and significance, but generally a small proportion of modifications qualified as TDR. The Company continues to evaluate loan modifications in our MML and TRE portfolios. As of September 30, 2020, the amortized cost of modified loans where Section 4013 of the CARES Act or the Interagency statement is applicable was immaterial.

The Company had an immaterial amount of TDRs during the nine months ended September 30, 2020. The Company had no TDRs during 2019. For certain TDRs, modifications resulted in write-offs for certain loans where the modified loan resulted in a forgiveness of existing principal and are included in the rollforward of the allowance for credit losses below.

As of September 30, 2020 and December 31, 2019, the Company had an immaterial amount (cost basis) of loans and fixed maturities on nonaccrual status.

The following table presents the roll forward of the allowance for credit losses by portfolio segment during the nine-month period ended September 30, 2020.

(in millions)	Transitional Real Estate Loans		Commercial Mortgage Loans		Middle Market Loans		Held to Maturity Securities		Available for Sale Securities		Reinsurance Recoverables
Balance at December 31, 2019 (1)	$	(22)	$	(3)	$	(20)	$	0	$	0	$	0
Transition impact to retained earnings	(2)		(8)		(33)		(10)		0		(11)
(Addition to) release of allowance for credit losses	(29)		(17)		(31)		1		(75)		0
Write-offs, net of recoveries	0		0		0		0		37		0
Balance at September 30, 2020	$	(53)	$	(28)	$	(84)	$	(9)	$	(38)	$	(11)

(1) U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only.

For assets that are subject to the credit loss measurement, the change in credit loss allowance will be significantly impacted by purchases and sales in those assets during the period as well as entering into new non-cancelable loan commitments. During the first quarter of 2020, the Company entered into a loan commitment with an external manager that met the requirements to recognize a credit loss on over $2.2 billion of loan commitments over the next few years. The estimate of credit losses for loan commitments as of September 30, 2020 was $31 million.

Other Investments

The table below reflects the composition of the carrying value for other investments as of the periods presented.

(In millions)	September 30, 2020			December 31, 2019
Other investments:
Policy loans		$	261		$	250
Short-term investments (1)		823			628
Limited partnerships		795			569
Other		25			30
Total other investments		$	1,904		$	1,477

(1) Includes securities lending collateral

As of September 30, 2020, the Company had $1.5 billion in outstanding commitments to fund alternative investments in limited partnerships.

Variable Interest Entities (VIEs)

As a condition of its involvement or investment in a VIE, the Company enters into certain protective rights and covenants that preclude changes in the structure of the VIE that would alter the creditworthiness of the Company's investment or its beneficial interest in the VIE.

For those VIEs other than certain unit trust structures, the Company's involvement is passive in nature. The Company has not, nor has it been, required to purchase any securities issued in the future by these VIEs.

The Company's ownership interest in VIEs is limited to holding the obligations issued by them. The Company has no direct or contingent obligations to fund the limited activities of these VIEs, nor does it have any direct or indirect financial guarantees related to the limited activities of these VIEs. The Company has not provided any assistance or any other type of financing support to any of the VIEs it invests in, nor does it have any intention to do so in the future. For those VIEs in which the Company holds debt obligations, the weighted-average lives of the Company's notes are very similar to the underlying collateral held by these VIEs where applicable.

The Company's risk of loss related to its interests in any of its VIEs is limited to the carrying value of the related investments held in the VIE.

VIEs - Consolidated

The following table presents the cost or amortized cost, fair value and balance sheet caption in which the assets and liabilities of consolidated VIEs are reported.

Investments in Consolidated Variable Interest Entities

	September 30, 2020						December 31, 2019
(In millions)	Amortized Cost (1)			Fair Value			Amortized Cost			Fair Value
Assets:
Fixed maturity securities, available for sale		$	3,279		$	4,284		$	3,308		$	4,312
Commercial mortgage and other loans		9,245			9,201			7,956			8,015
Other investments (2)		658			658			494			494
Other assets (3)		97			97			169			169
Total assets of consolidated VIEs		$	13,279		$	14,240		$	11,927		$	12,990
Liabilities:
Other liabilities (3)		$	240		$	240		$	126		$	126
Total liabilities of consolidated VIEs		$	240		$	240		$	126		$	126

(1) Net of allowance for credit losses

(2) Consists entirely of alternative investments in limited partnerships

(3) Consists entirely of derivatives

The Company is substantively the only investor in the consolidated VIEs listed in the table above. As the sole investor in these VIEs, the Company has the power to direct the activities of a variable interest entity that most significantly impact the entity's economic performance and is therefore considered to be the primary beneficiary of the VIEs that it consolidates. The Company also participates in substantially all of the variability created by these VIEs. The activities of these VIEs are limited to holding invested assets and foreign currency swaps, as appropriate, and utilizing the cash flows from these securities to service its investment. Neither the Company nor any of its creditors are able to obtain the underlying collateral of the VIEs unless there is an event of default or other specified event. For those VIEs that contain a swap, the Company is not a direct counterparty to the swap contracts and has no control over them. The Company's loss exposure to these VIEs is limited to its original investment. The Company's consolidated VIEs do not rely on outside or ongoing sources of funding to support their activities beyond the underlying collateral and swap contracts, if applicable. With the exception of its investment in unit trust structures, the underlying collateral assets and funding of the Company's consolidated VIEs are generally static in nature.

Investments in Unit Trust Structures

The Company also utilizes unit trust structures in its Aflac Japan segment to invest in various asset classes. As the sole investor of these VIEs, the Company is required to consolidate these trusts under U.S. GAAP.

VIEs - Not Consolidated

The table below reflects the amortized cost, fair value and balance sheet caption in which the Company's investment in VIEs not consolidated are reported.

Investments in Variable Interest Entities Not Consolidated

	September 30, 2020						December 31, 2019
(In millions)	Amortized Cost			Fair Value			Amortized Cost			Fair Value
Assets:
Fixed maturity securities, available for sale		$	5,800		$	6,985		$	4,129		$	4,884
Fixed maturity securities, held to maturity		0			0			1,848			2,236
Other investments (1)		137			137			75			74
Total investments in VIEs not consolidated		$	5,937		$	7,122		$	6,052		$	7,194

(1) Consists entirely of alternative investments in limited partnerships

The Company holds alternative investments in limited partnerships that have been determined to be VIEs. These partnerships invest in private equity and structured investments. The Company’s maximum exposure to loss on these investments is limited to the amount of its investment. The Company is not the primary beneficiary of these VIEs and is therefore not required to consolidate them. The Company classifies these investments as Other investments in the consolidated balance sheets.

Certain investments in VIEs that the Company is not required to consolidate are investments that are in the form of debt obligations from the VIEs that are irrevocably and unconditionally guaranteed by their corporate parents or sponsors. These VIEs are the primary financing vehicles used by their corporate sponsors to raise financing in the capital markets. The variable interests created by these VIEs are principally or solely a result of the debt instruments issued by them. The Company does not have the power to direct the activities that most significantly impact the entity's economic performance, nor does it have the obligation to absorb losses of the entity or the right to receive benefits from the entity. As such, the Company is not the primary beneficiary of these VIEs and is therefore not required to consolidate them.

Securities Lending and Pledged Securities

The Company lends fixed maturity and public equity securities to financial institutions in short-term security-lending transactions. These short-term security-lending arrangements increase investment income with minimal risk. The Company receives cash or other securities as collateral for such loans. The Company's security lending policy requires that the fair value of the securities received as collateral be 102% or more of the fair value of the loaned securities and that unrestricted cash received as collateral be 100% or more of the fair value of the loaned securities. The securities loaned continue to be carried as investment assets on the Company's balance sheet during the terms of the loans and are not reported as sales. For loans involving unrestricted cash or securities as collateral, the collateral is reported as an asset with a corresponding liability for the return of the collateral. For loans where the Company receives as collateral securities that the Company is not permitted to sell or repledge, the collateral is not reflected on the consolidated financial statements.

Details of collateral by loaned security type and remaining maturity of the agreements were as follows:

Securities Lending Transactions Accounted for as Secured Borrowings
Remaining Contractual Maturity of the Agreements
	September 30, 2020						December 31, 2019
(In millions)	Overnight and Continuous(1)		Up to 30 days		Total		Overnight and Continuous(1)		Up to 30 days		Total
Securities lending transactions:
Fixed maturity securities:
Japan government and agencies	$	0	$	534	$	534	$	0	$	1,013	$	1,013
Public utilities	61		0		61		35		0		35
Sovereign and supranational	2		0		2		2		0		2
Banks/financial institutions	85		0		85		48		0		48
Other corporate	813		0		813		778		0		778
Total borrowings	$	961	$	534	$	1,495	$	863	$	1,013	$	1,876
Gross amount of recognized liabilities for securities lending transactions					$	1,495					$	1,876

(1) The related loaned security, under the Company's U.S. securities lending program, can be returned to the Company at the transferee's discretion; therefore, they are classified as Overnight and Continuous.

In connection with securities lending, in addition to cash collateral received, the Company received from counterparties securities collateral of $6,176 million and $4,759 million at September 30, 2020 and December 31, 2019, respectively, which may not be sold or re-pledged, unless the counterparty is in default. Such securities collateral is not reflected on the consolidated financial statements.

The Company did not have any repurchase agreements or repurchase-to-maturity transactions outstanding as of September 30, 2020, and December 31, 2019, respectively.

Certain fixed maturity securities can be pledged as collateral as part of derivative transactions, or pledged to support state deposit requirements or certain investment programs. For additional information regarding pledged securities related to derivative transactions, see Note 4.

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DERIVATIVE INSTRUMENTS

9 Months Ended

Sep. 30, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVE INSTRUMENTS

DERIVATIVE INSTRUMENTS

The Company's freestanding derivative financial instruments have historically consisted of:

•foreign currency forwards and options used in hedging foreign exchange risk on U.S. dollar-denominated investments in Aflac Japan's portfolio

•foreign currency forwards and options used to economically hedge certain portions of forecasted cash flows denominated in yen and hedge the Company's long term exposure to a weakening yen

•cross-currency interest rate swaps, also referred to as foreign currency swaps, associated with certain senior notes and subordinated debentures

•foreign currency swaps that are associated with VIE bond purchase commitments, and investments in special-purpose entities, including VIEs where the Company is the primary beneficiary

•interest rate swaps used to economically hedge interest rate fluctuations in certain variable-rate investments

•interest rate swaptions used to hedge changes in the fair value associated with interest rate fluctuations for certain U.S. dollar-denominated available-for-sale fixed-maturity securities.

•bond purchase commitments at the inception of investments in consolidated VIEs

Some of the Company's derivatives are designated as cash flow hedges, fair value hedges or net investment hedges; however, other derivatives do not qualify for hedge accounting or the Company elects not to designate them as accounting hedges.

Derivative Types

Foreign currency forwards and options are executed for the Aflac Japan segment in order to hedge the currency risk on the carrying value of certain U.S. dollar-denominated investments. The average maturity of these forwards and options can change depending on factors such as market conditions and types of investments being held. In situations where the maturity of the forwards and options is shorter than the underlying investment being hedged, the Company may enter into new forwards and options near maturity of the existing derivative in order to continue hedging the underlying investment. In forward transactions, Aflac Japan agrees with another party to buy a fixed amount of yen and sell a corresponding amount of U.S. dollars at a specified future date. Aflac Japan also executes foreign currency option transactions in a collar strategy, where Aflac Japan agrees with another party to simultaneously purchase put options and sell call options. In the purchased put transactions, Aflac Japan obtains the option to buy a fixed amount of yen and sell a corresponding amount of U.S. dollars at a specified future date. In the sold call transaction, Aflac Japan agrees to sell a fixed amount of yen and buy a corresponding amount of U.S. dollars at a specified future date. The combination of purchasing the put option and selling the call option results in no net premium being paid (i.e. a costless or zero-cost collar). Additionally, the Company enters into purchased options, acting as caps to protect the downside of the sold call options beyond a specified level. As opposed to the collar strategies which are fair value hedges, these sold call option caps are classified as non-qualifying hedges.

From time to time, the Company may also enter into foreign currency forwards and options to hedge the currency risk associated with the net investment in Aflac Japan. In these forward transactions, Aflac agrees with another party to buy a fixed amount of U.S. dollars and sell a corresponding amount of yen at a specified price at a specified future date. In the option transactions, the Company may use a combination of foreign currency options to protect expected future cash flows by simultaneously purchasing yen put options (options that protect against a weakening yen) and selling yen call options (options that limit participation in a strengthening yen). The combination of these two actions create a zero-cost collar. Additionally, the Company enters into purchased options to hedge cash flows from the net investment in Aflac Japan.

The Company enters into foreign currency swaps pursuant to which it exchanges an initial principal amount in one currency for an initial principal amount of another currency, with an agreement to re-exchange the principal amounts at a future date. There may also be periodic exchanges of payments at specified intervals based on the agreed upon rates and notional amounts. Foreign currency swaps are used primarily in the consolidated VIEs in the Company's Aflac Japan portfolio to convert foreign-denominated cash flows to yen, the functional currency of Aflac Japan, in order to minimize cash flow fluctuations. The Company also uses foreign currency swaps to economically convert certain of its U.S. dollar-denominated senior note and subordinated debenture principal and interest obligations into yen-denominated obligations.

In order to reduce investment income volatility from its variable-rate investments, the Company enters into receive–fixed, pay–floating interest rate swaps. These derivatives are cleared and settled through a central clearinghouse.

Swaptions are used to mitigate the adverse impact resulting from significant changes in the fair value of U.S. dollar-denominated available-for-sale securities due to fluctuation in interest rates. In a payer swaption, the Company pays a premium to obtain the right, but not the obligation, to enter into a swap contract where it will pay a fixed rate and receive a floating rate. Interest rate swaption collars are combinations of two swaption positions. In order to maximize the efficiency of the collars while minimizing cost, a collar strategy is used whereby the Company purchases a long payer swaption (the Company purchases an option that allows it to enter into a swap where the Company will pay the fixed rate and receive the floating rate of the swap) and sells a short receiver swaption (the Company sells an option that provides the counterparty with the right to enter into a swap where the Company will receive the fixed rate and pay the floating rate of the swap). The combination of purchasing the long payer swaption and selling the short receiver swaption results in no net premium being paid (i.e. a costless or zero-cost collar).

Bond purchase commitments result from repackaged bond structures that are consolidated VIEs whereby there is a delay in the trade date and settlement date of the bond within the structure to ensure completion of all necessary legal agreements to support the consolidated VIE that issues the repackaged bond. Since the Company has a commitment to purchase the underlying bond at a specified price, the agreement meets the definition of a derivative where the value is derived based on the current market value of the bond compared to the fixed purchase price to be paid on the settlement date.

Derivative Balance Sheet Classification

The table below summarizes the balance sheet classification of the Company's derivative fair value amounts, as well as the gross asset and liability fair value amounts. The fair value amounts presented do not include income accruals. Derivative assets are included in “Other Assets,” while derivative liabilities are included in “Other Liabilities” within the Company’s Consolidated Balance Sheets. The notional amount of derivative contracts represents the basis upon which pay or receive amounts are calculated and are not reflective of exposure or credit risk.

		September 30, 2020									December 31, 2019
(In millions)				Asset Derivatives			Liability Derivatives						Asset Derivatives			Liability Derivatives
Hedge Designation/ Derivative Type	Notional Amount			Fair Value			Fair Value			Notional Amount			Fair Value			Fair Value
Cash flow hedges:
Foreign currency swaps - VIE		$	18		$	0		$	1		$	75		$	0		$	8
Total cash flow hedges		18			0			1			75			0			8
Fair value hedges:
Foreign currency forwards		64			1			0			964			0			38
Foreign currency options		8,869			0			1			11,573			0			5
Interest rate swaptions		0			0			0			243			0			0
Total fair value hedges		8,933			1			1			12,780			0			43
Net investment hedge:
Foreign currency forwards		5,037			45			26			4,952			72			2
Foreign currency options		2,083			1			0			2,000			0			0
Total net investment hedge		7,120			46			26			6,952			72			2
Non-qualifying strategies:
Foreign currency swaps		2,250			53			49			2,800			72			78
Foreign currency swaps - VIE		2,743			97			239			2,587			169			118
Foreign currency forwards		25,319			236			309			19,821			166			337
Foreign currency options		9,071			0			0			9,553			0			0
Interest rate swaps		2,000			6			0			7,120			3			0
Interest rate swaptions		0			0			0			7			0			0
Total non-qualifying strategies		41,383			392			597			41,888			410			533
Total derivatives		$	57,454		$	439		$	625		$	61,695		$	482		$	586

Cash Flow Hedges

For certain variable-rate U.S. dollar-denominated available-for-sale securities held by Aflac Japan via consolidated VIEs, foreign currency swaps are used to swap the USD variable rate interest and principal payments to fixed rate JPY interest and principal payments. The Company has designated foreign currency swaps as a hedge of the variability in cash flows of a forecasted transaction or of amounts to be received or paid related to a recognized asset (“cash flow” hedge). The remaining maximum length of time for which these cash flows are hedged is approximately six years. The derivatives in the Company's consolidated VIEs that are not designated as accounting hedges are discussed in the "non-qualifying strategies" section of this note.

Fair Value Hedges

The Company designates and accounts for certain foreign currency forwards, options, and interest rate swaptions as fair value hedges when they meet the requirements for hedge accounting. The Company recognizes gains and losses on these derivatives as well as the offsetting gain or loss on the related hedged items in current earnings.

Foreign currency forwards and options hedge the foreign currency exposure of certain U.S. dollar-denominated available-for-sale fixed-maturity investments held in Aflac Japan. The change in the fair value of the foreign currency forwards related to the changes in the difference between the spot rate and the forward price is excluded from the assessment of hedge effectiveness. The change in fair value of the foreign currency option related to the time value of the option is recognized in current earnings and is excluded from the assessment of hedge effectiveness.

Interest rate swaptions hedge the interest rate exposure of certain U.S. dollar-denominated available-for-sale securities held in Aflac Japan. For these hedging relationships, the Company excludes time value from the assessment of hedge effectiveness and recognizes changes in the intrinsic value of the swaptions in current earnings within net investment income. The change in the time value of the swaptions is recognized in other comprehensive income (loss) and amortized into earnings (net investment income) over its legal term.

The following table presents the gains and losses on derivatives and the related hedged items in fair value hedges.

Fair Value Hedging Relationships

(In millions)		Hedging Derivatives						Hedged Items
Hedging Derivatives	Hedged Items	Total Gains (Losses)		Gains (Losses) Excluded from Effectiveness Testing(1)		Gains (Losses) Included in Effectiveness Testing(2)		Gains (Losses)(2)		Net Investment Gains (Losses) Recognized for Fair Value Hedge
Three Months Ended September 30, 2020:
Foreign currency forwards	Fixed maturity securities	$	1	$	0	$	1	$	(1)	$	0
Foreign currency options	Fixed maturity securities	(2)		(2)		0		0		0
Total gains (losses)		$	(1)	$	(2)	$	1	$	(1)	$	0
Nine Months Ended September 30, 2020:
Foreign currency forwards	Fixed maturity securities	$	(15)	$	(8)	$	(7)	$	8	$	1
Foreign currency options	Fixed maturity securities	(4)		(3)		(1)		1		0
Total gains (losses)		$	(19)	$	(11)	$	(8)	$	9	$	1
Three Months Ended September 30, 2019:
Foreign currency forwards	Fixed maturity securities	$	(19)	$	(24)	$	5	$	(4)	$	1
Foreign currency options	Fixed maturity securities	(5)		(5)		0		0		0
Interest rate swaptions	Fixed maturity securities	(6)		(6)		0		0		0
Total gains (losses)		(30)		(35)		5		(4)		1
Nine Months Ended September 30, 2019:
Foreign currency forwards	Fixed maturity securities	$	(4)	$	(48)	$	44	$	(43)	$	1
Foreign currency options	Fixed maturity securities	(9)		(9)		0		0		0
Interest rate swaptions	Fixed maturity securities	(9)		(9)		0		0		0
Total gains (losses)		$	(22)	$	(66)	$	44	$	(43)	$	1

(1) Gains (losses) excluded from effectiveness testing includes the forward point on foreign currency forwards and time value change on foreign currency options which are reported in the consolidated statement of earnings as net investment gains (losses). It also includes the change in the fair value of the interest rate swaptions related to the time value of the swaptions which is recognized as a component of other comprehensive income (loss).

(2) Gains and losses on foreign currency forwards and options and related hedged items are reported in the consolidated statement of earnings as net investment gains (losses). For interest rate swaptions and related hedged items, gains and losses included in the hedge assessment, premium amortization and time value amortization while the hedge items are still outstanding are reported within net investment income. The time value gains and losses for interest rate swaptions when the related hedged items are redeemed are reported in net investment gains and losses consistent with the impact of the hedged item. For the three-month and nine-month periods ended September 30, 2020 and 2019, gains and losses included in the hedge assessment on interest rate swaptions and related hedged items were immaterial.

The following table shows the carrying amounts of assets designated and qualifying as hedged items in fair value hedges of interest rate risk and the related cumulative hedge adjustment included in the carrying amount.

(In millions)	Carrying Amount of the Hedged Assets/(Liabilities)(1)					Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of Hedged Assets/(Liabilities)
		September 30, 2020		December 31, 2019		September 30, 2020		December 31, 2019
Fixed maturity securities		$	4,368	$	4,633	$	241	$	256

(1) The balance includes hedging adjustment on discontinued hedging relationships of $241 in 2020 and $256 in 2019.

The total notional amount of the Company's interest rate swaptions was $0 in 2020 and $243 in 2019. The hedging adjustment related to these derivatives was immaterial.

Net Investment Hedge

The Company's investment in Aflac Japan is affected by changes in the yen/dollar exchange rate. To mitigate this exposure, the Parent Company's yen-denominated liabilities (see Note 8) have been designated as non-derivative hedges. Beginning in July 2019, certain foreign currency forwards and options were designated as derivative hedges of the foreign currency exposure of the Company's net investment in Aflac Japan.

The Company's net investment hedge was effective during the three- and nine-month periods ended September 30, 2020 and 2019, respectively.

Non-qualifying Strategies

For the Company's derivative instruments in consolidated VIEs that do not qualify for hedge accounting treatment, all changes in their fair value are reported in current period earnings within net investment gains (losses). The amount of gain or loss recognized in earnings for the Company's VIEs is attributable to the derivatives in those investment structures. While the change in value of the swaps is recorded through current period earnings, the change in value of the available-for-sale fixed maturity securities associated with these swaps is recorded through other comprehensive income.

As of September 30, 2020, the Parent Company had $2.3 billion notional amount of cross-currency interest rate swap agreements related to certain of its U.S. dollar-denominated senior notes to effectively convert a portion of the interest on the notes from U.S dollar to Japanese yen. Changes in the values of these swaps are recorded through current period earnings. For additional information regarding these swaps, see Note 9 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report.

The Company uses foreign exchange forwards and options to economically mitigate the currency risk of some of its U.S. dollar-denominated loan receivables held within the Aflac Japan segment. These arrangements are not designated as accounting hedges, as the foreign currency remeasurement of the loan receivables impacts current period earnings, and generally offsets gains and losses from foreign exchange forwards within net investment gains (losses). The Company also has certain foreign exchange forwards on U.S. dollar-denominated available-for-sale securities where hedge accounting is not being applied.

Prior to July 2019, in order to economically mitigate currency risk of future yen dividends from Aflac Japan while lowering consolidated hedge costs associated with Aflac Japan's U.S. dollar investment hedging, the Parent Company entered into offsetting hedge positions using foreign exchange forwards. This activity is reported in the Corporate and other segment. As of July 1, 2019, the Parent Company designates these foreign exchange forward contracts as accounting hedges of its net investment in Aflac Japan.

The Company uses interest rate swaps to economically convert the variable rate investment income to a fixed rate on certain variable-rate investments.

Impact of Derivatives and Hedging Instruments

The following table summarizes the impact to net investment gains (losses) and other comprehensive income (loss) from all derivatives and hedging instruments.

	Three Months Ended September 30,
	2020										2019
(In millions)	Net Investment Income (1)			Net Investment Gains (Losses)				Other Comprehensive Income (Loss)(2)			Net Investment Income (1)			Net Investment Gains (Losses)				Other Comprehensive Income (Loss)(2)
Qualifying hedges:
Cash flow hedges:
Foreign currency swaps - VIE		$	0		$	0			$	2		$	(1)		$	(1)			$	(2)
Total cash flow hedges		0			0		(3)		2			(1)			(1)		(3)		(2)
Fair value hedges:
Foreign currency forwards (3)					0										(23)
Foreign currency options (3)					(2)										(5)
Interest rate swaptions (3)		0			0				0			0			0				(6)
Total fair value hedges		0			(2)				0			0			(28)				(6)
Net investment hedge:
Non-derivative hedging instruments					0				(51)						0				2
Foreign currency forwards					(16)				(91)						20				19
Foreign currency options					(2)				0						(3)				0
Total net investment hedge					(18)				(142)						17				21
Non-qualifying strategies:
Foreign currency swaps					(27)										27
Foreign currency swaps - VIE					40										(93)
Foreign currency forwards					139										(70)
Foreign currency options					4										0
Interest rate swaps					0										2
Forward bond purchase commitment- VIE					2										0
Total non- qualifying strategies					158										(134)
Total		$	0		$	138			$	(140)		$	(1)		$	(146)			$	13

(1) Cash flow hedge items and the change in the fair value of interest rate swaptions related to the time value of the swaptions in fair value hedges are recorded as unrealized gains (losses) on derivatives and net investment hedge items are recorded in the unrealized foreign currency translation gains (losses) line in the consolidated statement of comprehensive income (loss).

(2) Impact of cash flow hedges reported as net investment gains (losses) includes an immaterial amount of gains or losses reclassified from accumulated other comprehensive income (loss) into earnings. It also includes an immaterial amount excluded from effectiveness testing during the three-month periods ended September 30, 2020 and 2019. In addition, an immaterial amount of income (loss) was reclassified from accumulated other comprehensive income (loss) into earnings during the three-month periods ended September 30, 2020 and 2019, related to fair value hedges excluded component.

(3)Impact shown net of effect of hedged items (see Fair Value Hedges section of this Note 4 for further detail)

	Nine Months Ended September 30,
	2020										2019
(In millions)	Net Investment Income(1)			Net Investment Gains (Losses)				Other Comprehensive Income (Loss)(2)			Net Investment Income(1)			Net Investment Gains (Losses)				Other Comprehensive Income (Loss)(2)
Qualifying hedges:
Cash flow hedges:
Foreign currency swaps - VIE		$	(1)		$	0			$	(4)		$	(2)		$	(1)			$	(4)
Total cash flow hedges		(1)			0		(3)		(4)			(2)			(1)		(3)		(4)
Fair value hedges:
Foreign currency forwards(3)					(7)										(47)
Foreign currency options(3)					(3)										(9)
Interest rate swaptions(3)		(1)			0				1			(1)			0				(8)
Total fair value hedges		(1)			(10)				1			(1)			(56)				(8)
Net investment hedge:
Non-derivative hedging instruments					0				(72)						0				(52)
Foreign currency forwards					136				(166)						20				19
Foreign currency options					(3)				0						(3)				0
Total net investment hedge					133				(238)						17				(33)
Non-qualifying strategies:
Foreign currency swaps					54										71
Foreign currency swaps - VIE					(185)										(96)
Foreign currency forwards					133										23
Foreign currency options					(1)										0
Interest rate swaps					49										18
Total non-qualifying strategies					50										16
Total		$	(2)		$	173			$	(241)		$	(3)		$	(24)			$	(45)

(1) Cash flow hedge items and the change in the fair value of interest rate swaptions related to the time value of the swaptions in fair value hedges are recorded as unrealized gains (losses) on derivatives and net investment hedge items are recorded in the unrealized foreign currency translation gains (losses) line in the consolidated statement of comprehensive income (loss).

(2) Impact of cash flow hedges reported as net investment gains (losses) includes an immaterial amount of gains or losses reclassified from accumulated other comprehensive income (loss) into earnings. It also includes an immaterial amount excluded from effectiveness testing during the nine-month periods ended September 30, 2020 and 2019, respectively. In addition, an immaterial amount of income (loss) was reclassified from accumulated other comprehensive income (loss) into earnings during the nine-month periods ended September 30, 2020 and 2019, respectively, related to fair value hedges excluded component.

(3)Impact shown net of effect of hedged items (see Fair Value Hedges section of this Note 4 for further detail)

As of September 30, 2020, deferred gains and losses on derivative instruments recorded in accumulated other comprehensive income that are expected to be reclassified to earnings during the next twelve months were immaterial.

Credit Risk Assumed through Derivatives

For the foreign currency and credit default swaps associated with the Company's VIE investments for which it is the primary beneficiary, the Company bears the risk of loss due to counterparty default even though it is not a direct counterparty to those contracts.

The Company is a direct counterparty to the foreign currency swaps that it has entered into in connection with certain of its senior notes and subordinated debentures; foreign currency forwards; and foreign currency options, and therefore the Company is exposed to credit risk in the event of nonperformance by the counterparties in those contracts. The risk of counterparty default for the Company's foreign currency swaps, certain foreign currency forwards, and foreign currency options is mitigated by collateral posting requirements that counterparties to those transactions must meet.

As of September 30, 2020, all of the Company's derivative agreement counterparties were investment grade.

The Company engages in over-the-counter (OTC) bilateral derivative transactions directly with unaffiliated third parties under International Swaps and Derivatives Association, Inc. (ISDA) agreements and other documentation. Most of the ISDA agreements also include Credit Support Annexes (CSAs) provisions, which generally provide for two-way collateral postings at the first dollar of exposure. The Company mitigates the risk that counterparties to transactions might be unable to fulfill their contractual obligations by monitoring counterparty credit exposure and collateral value while generally requiring that collateral be posted at the outset of the transaction. In addition, a significant portion of the derivative transactions have provisions that give the counterparty the right to terminate the transaction upon a downgrade of Aflac’s financial strength rating. The actual amount of payments that the Company could be required to make depends on market conditions, the fair value of outstanding affected transactions, and other factors prevailing at and after the time of the downgrade.

The Company also engages in OTC cleared derivative transactions through regulated central clearing counterparties. These positions are marked to market and margined on a daily basis (both initial margin and variation margin), and the Company has minimal exposure to credit-related losses in the event of nonperformance by counterparties to these derivatives.

Collateral posted by the Company to third parties for derivative transactions can generally be repledged or resold by the counterparties. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a net liability position by counterparty was approximately $265 million and $301 million as of September 30, 2020, and December 31, 2019, respectively. If the credit-risk-related contingent features underlying these agreements had been triggered on September 30, 2020, the Company estimates that it would be required to post a maximum of $155 million of additional collateral to these derivative counterparties. The Company is generally allowed to sell or repledge collateral obtained from its derivative counterparties, although it does not typically exercise such rights. (See the Offsetting tables below for collateral posted or received as of the reported balance sheet dates.)

Offsetting of Financial Instruments and Derivatives

Most of the Company's derivative instruments are subject to enforceable master netting arrangements that provide for the net settlement of all derivative contracts between the Parent Company or its subsidiaries and the respective counterparty in the event of default or upon the occurrence of certain termination events. Collateral support agreements with the master netting arrangements generally provide that the Company will receive or pledge financial collateral at the first dollar of exposure.

The Company has securities lending agreements with unaffiliated financial institutions that post collateral to the Company in return for the use of its fixed maturity and public equity securities (see Note 3). When the Company has entered into securities lending agreements with the same counterparty, the agreements generally provide for net settlement in the event of default by the counterparty. This right of set-off allows the Company to keep and apply collateral received if the counterparty failed to return the securities borrowed from the Company as contractually agreed.

The tables below summarize the Company's derivatives and securities lending transactions, and as reflected in the tables, in accordance with U.S. GAAP, the Company's policy is to not offset these financial instruments in the Consolidated Balance Sheets.

Offsetting of Financial Assets and Derivative Assets

September 30, 2020
										Gross Amounts Not Offset in Balance Sheet
(In millions)	Gross Amount of Recognized Assets			Gross Amount Offset in Balance Sheet			Net Amount of Assets Presented in Balance Sheet			Financial Instruments			Securities Collateral		Cash Collateral Received			Net Amount
Derivative assets:
Derivative       assets subject to a       master netting       agreement or       offsetting       arrangement
OTC - bilateral		$	336		$	0		$	336		$	(238)	$	(6)		$	(92)		$	0
OTC - cleared		6			0			6			0		0			(5)			1
Total derivative assets subject to a master netting agreement or offsetting arrangement		342			0			342			(238)		(6)			(97)			1
Derivative       assets not subject       to a master netting       agreement or       offsetting       arrangement
OTC - bilateral		97						97											97
Total derivative assets not subject to a master netting agreement or offsetting arrangement		97						97											97
Total derivative assets		439			0			439			(238)		(6)			(97)			98
Securities lending and similar arrangements		1,471			0			1,471			0		0			(1,471)			0
Total		$	1,910		$	0		$	1,910		$	(238)	$	(6)		$	(1,568)		$	98

December 31, 2019
										Gross Amounts Not Offset in Balance Sheet
(In millions)	Gross Amount of Recognized Assets			Gross Amount Offset in Balance Sheet			Net Amount of Assets Presented in Balance Sheet			Financial Instruments			Securities Collateral		Cash Collateral Received			Net Amount
Derivative assets:
Derivative       assets subject to a       master netting       agreement or       offsetting       arrangement
OTC - bilateral		$	310		$	0		$	310		$	(190)	$	(7)		$	(113)		$	0
OTC - cleared		3			0			3			0		0			0			3
Total derivative assets subject to a master netting agreement or offsetting arrangement		313			0			313			(190)		(7)			(113)			3
Derivative       assets not subject       to a master netting       agreement or       offsetting       arrangement
OTC - bilateral		169						169											169
Total derivative assets not subject to a master netting agreement or offsetting arrangement		169						169											169
Total derivative assets		482			0			482			(190)		(7)			(113)			172
Securities lending and similar arrangements		1,860			0			1,860			0		0			(1,860)			0
Total		$	2,342		$	0		$	2,342		$	(190)	$	(7)		$	(1,973)		$	172

Offsetting of Financial Liabilities and Derivative Liabilities

September 30, 2020
										Gross Amounts Not Offset in Balance Sheet
(In millions)	Gross Amount of Recognized Liabilities			Gross Amount Offset in Balance Sheet			Net Amount of Liabilities Presented in Balance Sheet			Financial Instruments			Securities Collateral		Cash Collateral Pledged			Net Amount
Derivative liabilities:
Derivative       liabilities subject       to a master netting       agreement or       offsetting       arrangement
OTC - bilateral		$	385		$	0		$	385		$	(238)	$	(89)		$	(21)		$	37
Total derivative liabilities subject to a master netting agreement or offsetting arrangement		385			0			385			(238)		(89)			(21)			37
Derivative       liabilities not       subject to a       master netting       agreement or       offsetting       arrangement
OTC - bilateral		240						240											240
Total derivative liabilities not subject to a master netting agreement or offsetting arrangement		240						240											240
Total derivative liabilities		625			0			625			(238)		(89)			(21)			277
Securities lending and similar arrangements		1,495			0			1,495			(1,471)		0			0			24
Total		$	2,120		$	0		$	2,120		$	(1,709)	$	(89)		$	(21)		$	301

December 31, 2019
										Gross Amounts Not Offset in Balance Sheet
(In millions)	Gross Amount of Recognized Liabilities			Gross Amount Offset in Balance Sheet			Net Amount of Liabilities Presented in Balance Sheet			Financial Instruments			Securities Collateral		Cash Collateral Pledged			Net Amount
Derivative liabilities:
Derivative       liabilities subject       to a master netting       agreement or       offsetting       arrangement
OTC - bilateral		$	459		$	0		$	459		$	(190)	$	(222)		$	(32)		$	15
OTC - cleared		1			0			1			0		0			(1)			0
Total derivative liabilities subject to a master netting agreement or offsetting arrangement		460			0			460			(190)		(222)			(33)			15
Derivative       liabilities not       subject to a       master netting       agreement or       offsetting       arrangement
OTC - bilateral		126						126											126
Total derivative liabilities not subject to a master netting agreement or offsetting arrangement		126						126											126
Total derivative liabilities		586			0			586			(190)		(222)			(33)			141
Securities lending and similar arrangements		1,876			0			1,876			(1,860)		0			0			16
Total		$	2,462		$	0		$	2,462		$	(2,050)	$	(222)		$	(33)		$	157

For additional information on the Company's financial instruments, see the accompanying Notes 1, 3 and 5 and Notes 1, 3 and 5 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report.

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FAIR VALUE MEASUREMENTS

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS

Fair Value Hierarchy

U.S. GAAP specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. These two types of inputs create three valuation hierarchy levels. Level 1 valuations reflect quoted market prices for identical assets or liabilities in active markets. Level 2 valuations reflect quoted market prices for similar assets or liabilities in an active market, quoted market prices for identical or similar assets or liabilities in non-active markets or model-derived valuations in which all significant valuation inputs are observable in active markets. Level 3 valuations reflect valuations in which one or more of the significant inputs are not observable in an active market.

The following tables present the fair value hierarchy levels of the Company's assets and liabilities that are measured and carried at fair value on a recurring basis.

	September 30, 2020
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Assets:
Securities available for sale, carried at fair value:
Fixed maturity securities:
Government and agencies		$	35,539		$	1,656		$	0		$	37,195
Municipalities		0			2,619			0			2,619
Mortgage- and asset-backed securities		0			526			191			717
Public utilities		0			10,030			368			10,398
Sovereign and supranational		0			1,422			0			1,422
Banks/financial institutions		0			11,672			24			11,696
Other corporate		0			38,813			268			39,081
Total fixed maturity securities		35,539			66,738			851			103,128
Equity securities		608			81			86			775
Other investments		823			0			0			823
Cash and cash equivalents		5,563			0			0			5,563
Other assets:
Foreign currency swaps		0			53			97			150
Foreign currency forwards		0			282			0			282
Foreign currency options		0			1			0			1
Interest rate swaps		0			6			0			6
Total other assets		0			342			97			439
Total assets		$	42,533		$	67,161		$	1,034		$	110,728
Liabilities:
Other liabilities:
Foreign currency swaps		$	0		$	49		$	240		$	289
Foreign currency forwards		0			335			0			335
Foreign currency options		0			1			0			1
Total liabilities		$	0		$	385		$	240		$	625

	December 31, 2019
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Assets:
Securities available for sale, carried at fair value:
Fixed maturity securities:
Government and agencies		$	34,878		$	1,522		$	0		$	36,400
Municipalities		0			1,847			0			1,847
Mortgage- and asset-backed securities		0			232			178			410
Public utilities		0			6,556			224			6,780
Sovereign and supranational		0			1,042			0			1,042
Banks/financial institutions		0			10,264			23			10,287
Other corporate		0			34,234			262			34,496
Total fixed maturity securities		34,878			55,697			687			91,262
Equity securities		642			80			80			802
Other investments		628			0			0			628
Cash and cash equivalents		4,896			0			0			4,896
Other assets:
Foreign currency swaps		0			72			169			241
Foreign currency forwards		0			238			0			238
Interest rate swaps		0			3			0			3
Total other assets		0			313			169			482
Total assets		$	41,044		$	56,090		$	936		$	98,070
Liabilities:
Other liabilities:
Foreign currency swaps		$	0		$	78		$	126		$	204
Foreign currency forwards		0			377			0			377
Foreign currency options		0			5			0			5
Total liabilities		$	0		$	460		$	126		$	586

The following tables present the carrying amount and fair value categorized by fair value hierarchy level for the Company's financial instruments that are not carried at fair value.

	September 30, 2020
(In millions)	Carrying Value			Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Assets:
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Government and agencies		$	22,938		$	28,248		$	254		$	0		$	28,502
Municipalities		370			0			490			0			490
Public utilities		46			0			60			0			60
Sovereign and supranational		559			0			723			0			723
Other corporate		24			0			32			0			32
Commercial mortgage and other loans		10,822			0			0			10,786			10,786
Other investments (1)		25			0			25			0			25
Total assets		$	34,784		$	28,248		$	1,584		$	10,786		$	40,618
Liabilities:
Other policyholders’ funds		$	7,642		$	0		$	0		$	7,550		$	7,550
Notes payable (excluding leases)		7,675			0			8,264			282			8,546
Total liabilities		$	15,317		$	0		$	8,264		$	7,832		$	16,096

(1) Excludes policy loans of $261 and equity method investments of $795, at carrying value

	December 31, 2019
(In millions)	Carrying Value			Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Assets:
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Government and agencies		$	22,241		$	27,937		$	354		$	0		$	28,291
Municipalities		821			0			1,083			0			1,083
Mortgage and asset-backed securities		16			0			7			10			17
Public utilities		2,535			0			2,954			0			2,954
Sovereign and supranational		1,123			0			1,320			0			1,320
Banks/financial institutions		916			0			1,018			0			1,018
Other corporate		2,433			0			2,911			0			2,911
Commercial mortgage and other loans		9,569			0			0			9,648			9,648
Other investments (1)		30			0			30			0			30
Total assets		$	39,684		$	27,937		$	9,677		$	9,658		$	47,272
Liabilities:
Other policyholders’ funds		$	7,317		$	0		$	0		$	7,234		$	7,234
Notes payable (excluding leases)		6,408			0			6,663			272			6,935
Total liabilities		$	13,725		$	0		$	6,663		$	7,506		$	14,169

(1) Excludes policy loans of $250 and equity method investments of $569, at carrying value

Fair Value of Financial Instruments

Fixed maturity and equity securities

The Company determines the fair values of fixed maturity securities and public and privately-issued equity securities using the following approaches or techniques: price quotes and valuations from third party pricing vendors (including quoted market prices readily available from public exchange markets) and non-binding price quotes the Company obtains from outside brokers.

A third party pricing vendor has developed valuation models to determine fair values of privately issued securities.These models are discounted cash flow (DCF) valuation models, but also use information from related markets, specifically the credit default swap (CDS) market to estimate expected cash flows. These models take into consideration any unique characteristics of the securities and make various adjustments to arrive at an appropriate issuer-specific loss adjusted credit curve. This credit curve is then used with the relevant recovery rates to estimate expected cash flows and modeling of additional features, including illiquidity adjustments, if necessary, to price the security by discounting those loss adjusted cash flows. In cases where a credit curve cannot be developed from the specific security features, the valuation methodology takes into consideration other market observable inputs, including:

1) the most appropriate comparable security(ies) of the issuer

2) issuer-specific CDS spreads

3) bonds or CDS spreads of comparable issuers with similar characteristics such as rating, geography, or sector

4) bond indices that are comparative in rating, industry, maturity and region.

The pricing data and market quotes the Company obtains from outside sources, including third party pricing services, are reviewed internally for reasonableness. If a fair value appears unreasonable, the Company will re-examine the inputs and assess the reasonableness of the pricing data with the vendor. Additionally, the Company may compare the inputs to relevant market indices and other performance measurements. Based on management's analysis, the valuation is

confirmed or may be revised if there is evidence of a more appropriate estimate of fair value based on available market data. Beginning September 30, 2020, the Company refined these valuation models to explicitly incorporate currency basis swap adjustments (market observable data) to assumed interest rate curves where appropriate. The Company has performed verification of the inputs and calculations in any valuation models to confirm that the valuations represent reasonable estimates of fair value.

For the periods presented, the Company has not adjusted the quotes or prices it obtains from the pricing services and brokers it uses.

The following tables present the pricing sources for the fair values of the Company's fixed maturity and equity securities.

	September 30, 2020
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Securities available for sale, carried at fair value:
Fixed maturity securities:
Government and agencies:
Third party pricing vendor		$	35,539		$	1,656		$	0		$	37,195
Total government and agencies		35,539			1,656			0			37,195
Municipalities:
Third party pricing vendor		0			2,619			0			2,619
Total municipalities		0			2,619			0			2,619
Mortgage- and asset-backed securities:
Third party pricing vendor		0			361			0			361
Broker/other		0			165			191			356
Total mortgage- and asset-backed securities		0			526			191			717
Public utilities:
Third party pricing vendor		0			10,030			0			10,030
Broker/other		0			0			368			368
Total public utilities		0			10,030			368			10,398
Sovereign and supranational:
Third party pricing vendor		0			1,422			0			1,422
Total sovereign and supranational		0			1,422			0			1,422
Banks/financial institutions:
Third party pricing vendor		0			11,672			0			11,672
Broker/other		0			0			24			24
Total banks/financial institutions		0			11,672			24			11,696
Other corporate:
Third party pricing vendor		0			38,809			0			38,809
Broker/other		0			4			268			272
Total other corporate		0			38,813			268			39,081
Total securities available for sale		$	35,539		$	66,738		$	851		$	103,128
Equity securities, carried at fair value:
Third party pricing vendor		$	608		$	81		$	0		$	689
Broker/other		0			0			86			86
Total equity securities		$	608		$	81		$	86		$	775

	September 30, 2020
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Government and agencies:
Third party pricing vendor		$	28,248		$	254		$	0		$	28,502
Total government and agencies		28,248			254			0			28,502
Municipalities:
Third party pricing vendor		0			490			0			490
Total municipalities		0			490			0			490
Public utilities:
Third party pricing vendor		0			60			0			60
Total public utilities		0			60			0			60
Sovereign and supranational:
Third party pricing vendor		0			723			0			723
Total sovereign and supranational		0			723			0			723
Other corporate:
Third party pricing vendor		0			32			0			32
Total other corporate		0			32			0			32
Total securities held to maturity		$	28,248		$	1,559		$	0		$	29,807

	December 31, 2019
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Securities available for sale, carried at fair value:
Fixed maturity securities:
Government and agencies:
Third party pricing vendor		$	34,878		$	1,522		$	0		$	36,400
Total government and agencies		34,878			1,522			0			36,400
Municipalities:
Third party pricing vendor		0			1,847			0			1,847
Total municipalities		0			1,847			0			1,847
Mortgage- and asset-backed securities:
Third party pricing vendor		0			232			0			232
Broker/other		0			0			178			178
Total mortgage- and asset-backed securities		0			232			178			410
Public utilities:
Third party pricing vendor		0			6,556			0			6,556
Broker/other		0			0			224			224
Total public utilities		0			6,556			224			6,780
Sovereign and supranational:
Third party pricing vendor		0			1,042			0			1,042
Total sovereign and supranational		0			1,042			0			1,042
Banks/financial institutions:
Third party pricing vendor		0			10,264			0			10,264
Broker/other		0			0			23			23
Total banks/financial institutions		0			10,264			23			10,287
Other corporate:
Third party pricing vendor		0			34,234			0			34,234
Broker/other		0			0			262			262
Total other corporate		0			34,234			262			34,496
Total securities available for sale		$	34,878		$	55,697		$	687		$	91,262
Equity securities, carried at fair value:
Third party pricing vendor		$	642		$	80		$	0		$	722
Broker/other		0			0			80			80
Total equity securities		$	642		$	80		$	80		$	802

	December 31, 2019
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Government and agencies:
Third party pricing vendor		$	27,937		$	354		$	0		$	28,291
Total government and agencies		27,937			354			0			28,291
Municipalities:
Third party pricing vendor		0			1,083			0			1,083
Total municipalities		0			1,083			0			1,083
Mortgage- and asset-backed securities:
Third party pricing vendor		0			7			0			7
Broker/other		0			0			10			10
Total mortgage- and asset-backed securities		0			7			10			17
Public utilities:
Third party pricing vendor		0			2,954			0			2,954
Total public utilities		0			2,954			0			2,954
Sovereign and supranational:
Third party pricing vendor		0			1,320			0			1,320
Total sovereign and supranational		0			1,320			0			1,320
Banks/financial institutions:
Third party pricing vendor		0			1,018			0			1,018
Total banks/financial institutions		0			1,018			0			1,018
Other corporate:
Third party pricing vendor		0			2,911			0			2,911
Total other corporate		0			2,911			0			2,911
Total securities held to maturity		$	27,937		$	9,647		$	10		$	37,594

The following is a discussion of the determination of fair value of the Company's remaining financial instruments.

Derivatives

The Company uses derivative instruments to manage the risk associated with certain assets. However, the derivative instrument may not be classified in the same fair value hierarchy level as the associated asset. Inputs used to value derivatives include, but are not limited to, interest rates, credit spreads, foreign currency forward and spot rates, and interest volatility. The significant inputs to pricing derivatives are generally observable in the market or can be derived by observable market data. When these inputs are observable, the derivatives are classified as Level 2.

The fair value of foreign currency forward and options are based on observable market inputs, therefore they are classified as Level 2.

To determine the fair value of its interest rate derivatives, the Company uses inputs that are generally observable in the market or can be derived from observable market data. Interest rate swaps are cleared trades. In a cleared swap contract, the clearinghouse provides benefits to the counterparties similar to contracts listed for investment traded on an exchange since it maintains a daily margin to mitigate counterparties' credit risk. These derivatives are priced using observable inputs, accordingly, they are classified as Level 2. For its interest rate swaptions, the Company estimates their fair values using observable market data, including interest rate curves and volatilities. Their fair values are also classified as Level 2.

For derivatives associated with VIEs where the Company is the primary beneficiary, the Company is not the direct counterparty to the swap contracts. As a result, the fair value measurements incorporate the credit risk of the collateral

associated with the VIE. Based on an analysis of these derivatives and a review of the methodology employed by the pricing vendor, the Company determined that due to the long duration of these swaps and the need to extrapolate from short-term observable data to derive and measure long-term inputs, certain inputs, assumptions and judgments are required to value future cash flows that cannot be corroborated by current inputs or current observable market data. As a result, the derivatives associated with the Company's consolidated VIEs are classified as Level 3 of the fair value hierarchy.

For forward bond purchase commitments with VIEs, the fair value of the derivative is based on the difference in the fixed purchase price and the current market value of the related bond prior to the settlement date. Since the bond is typically a public bond with readily available pricing, the derivatives associated with the forward purchase commitment are classified as Level 2 of the fair value hierarchy.

Commercial mortgage and other loans

Commercial mortgage and other loans include transitional real estate loans, commercial mortgage loans and middle market loans. The Company's loan receivables do not have readily determinable market prices and generally lack market liquidity. Fair values for loan receivables are determined based on the present value of expected future cash flows discounted at the applicable U.S. Treasury or London Interbank Offered Rate (LIBOR) yield plus an appropriate spread that considers other risk factors, such as credit and liquidity risk. The spreads are a significant component of the pricing inputs and are generally considered unobservable. Therefore, these investments have been assigned a Level 3 within the fair value hierarchy.

Other investments

Other investments includes short-term investments that are measured at fair value where amortized cost approximates fair value.

Other policyholders' funds

The largest component of the other policyholders' funds liability is the Company's annuity line of business in Aflac Japan. The Company's annuities have fixed benefits and premiums. For this product, the Company estimates the fair value to be equal to the cash surrender value. This is analogous to the value paid to policyholders on the valuation date if they were to surrender their policy. The Company periodically checks the cash value against discounted cash flow projections for reasonableness. The Company considers its inputs for this valuation to be unobservable and have accordingly classified this valuation as Level 3.

Notes payable

The fair values of the Company's publicly issued notes payable are determined by utilizing available sources of observable inputs from third party pricing vendors and are classified as Level 2. The fair values of the Company's yen-denominated loans approximate their carrying values and are classified as Level 3.

Transfers between Hierarchy Levels and Level 3 Rollforward

The following tables present the changes in fair value of the Company's investments and derivatives carried at fair value classified as Level 3.

Three Months Ended September 30, 2020
	Fixed Maturity Securities								Equity Securities		Derivatives (1)
(In millions)	Mortgage- and Asset- Backed Securities		Public Utilities		Banks/ Financial Institutions		Other Corporate				Foreign Currency Swaps		Total
Balance, beginning of period	$	188	$	322	$	24	$	243	$	86	$	(168)	$	695
Net investment gains (losses) included in earnings	0		0		0		0		0		23		23
Unrealized gains (losses) included in other comprehensive income (loss)	3		15		0		24		0		2		44
Purchases, issuances, sales and settlements:
Purchases	0		33		0		1		5		0		39
Issuances	0		0		0		0		0		0		0
Sales	0		0		0		0		(5)		0		(5)
Settlements	0		(2)		0		0		0		0		(2)
Transfers into Level 3	0		0		0		0		0		0		0
Transfers out of Level 3	0		0		0		0		0		0		0
Balance, end of period	$	191	$	368	$	24	$	268	$	86	$	(143)	$	794
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities still held at the end of the period included in earnings	$	0	$	0	$	0	$	0	$	0	$	23	$	23

(1) Derivative assets and liabilities are presented net

Three Months Ended September 30, 2019
	Fixed Maturity Securities										Equity Securities		Derivatives (1)
(In millions)	Mortgage- and Asset- Backed Securities		Public Utilities		Banks/ Financial Institutions			Other Corporate						Foreign Currency Swaps		Total
Balance, beginning of period	$	183	$	204	$	24		$	199		$	65		$	94	$	769
Net investment gains (losses) included in earnings	0		0		0			0			0			(84)		(84)
Unrealized gains (losses) included in other comprehensive income (loss)	0		4		0			5			0			(2)		7
Purchases, issuances, sales and settlements:
Purchases	0		0		0			19			14			0		33
Issuances	0		0		0			0			0			0		0
Sales	0		0		0			0			0			0		0
Settlements	0		(2)		0			0			0			0		(2)
Transfers into Level 3	0		0		0			1		(2)	0			0		1
Transfers out of Level 3	0		0		(1)		(2)	0			0			0		(1)
Balance, end of period	$	183	$	206	$	23		$	224		$	79		$	8	$	723
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities still held at the end of the period included in earnings	$	0	$	0	$	0		$	0		$	0		$	(84)	$	(84)

(1) Derivative assets and liabilities are presented net

(2) Transfer due to sector classification change

Nine Months Ended September 30, 2020
	Fixed Maturity Securities											Equity Securities		Derivatives (1)
(In millions)	Mortgage- and Asset- Backed Securities			Public Utilities			Banks/ Financial Institutions		Other Corporate					Foreign Currency Swaps		Total
Balance, beginning of period	$	178		$	224		$	23	$	262		$	80	$	43	$	810
Net investment gains (losses) included in earnings	0			0			0		0			0		(184)		(184)
Unrealized gains (losses) included in other comprehensive income (loss)	5			6			0		8			0		(2)		17
Purchases, issuances, sales and settlements:
Purchases	0			129			1		13			12		0		155
Issuances	0			0			0		0			0		0		0
Sales	0			0			0		0			(6)		0		(6)
Settlements	(1)			(6)			0		0			0		0		(7)
Transfers into Level 3	9		(2)	15		(3)	0		0			0		0		24
Transfers out of Level 3	0			0			0		(15)		(3)	0		0		(15)
Balance, end of period	$	191		$	368		$	24	$	268		$	86	$	(143)	$	794
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities still held at the end of the period included in earnings	$	0		$	0		$	0	$	0		$	0	$	(184)	$	(184)

(1) Derivative assets and liabilities are presented net

(2) Transfer due to reclassification of level 3 securities from HTM to AFS

(3) Transfer due to sector classification change

Nine Months Ended September 30, 2019
	Fixed Maturity Securities										Equity Securities		Derivatives (1)
(In millions)	Mortgage- and Asset- Backed Securities		Public Utilities			Banks/ Financial Institutions		Other Corporate					Foreign Currency Swaps		Total
Balance, beginning of period	$	177	$	109		$	23	$	213		$	46	$	80	$	648
Net investment gains (losses) included in earnings	0		0			0		0			0		(68)		(68)
Unrealized gains (losses) included in other comprehensive income (loss)	6		10			1		12			0		(4)		25
Purchases, issuances, sales and settlements:
Purchases	0		0			0		107			33		0		140
Issuances	0		0			0		0			0		0		0
Sales	0		0			0		(2)			0		0		(2)
Settlements	0		(4)			0		0			0		0		(4)
Transfers into Level 3	0		116		(2)	0		26		(2)	0		0		142
Transfers out of Level 3	0		(25)		(2)	(1)		(132)		(2),(3)	0		0		(158)
Balance, end of period	$	183	$	206		$	23	$	224		$	79	$	8	$	723
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities still held at the end of the period included in earnings	$	0	$	0		$	0	$	0		$	0	$	(68)	$	(68)

(1) Derivative assets and liabilities are presented net

(2) Transfer due to sector classification change

(3) Transfer due to availability of observable market inputs

Fair Value Sensitivity

Level 3 Significant Unobservable Input Sensitivity

The following tables summarize the significant unobservable inputs used in the valuation of the Company's Level 3 investments and derivatives carried at fair value. Included in the tables are the inputs or range of possible inputs that have an effect on the overall valuation of the financial instruments.

September 30, 2020
(In millions)	Fair Value			Valuation Technique(s)	Unobservable Input	Range (Weighted Average)
Assets:
Securities available for sale, carried at fair value:
Fixed maturity securities:
Mortgage- and asset-backed securities		$	191	Consensus pricing	Offered quotes	N/A			(a)
Public utilities		368		Discounted cash flow	Credit spreads	N/A			(a)
Banks/financial institutions		24		Consensus pricing	Offered quotes	N/A			(a)
Other corporate		268		Discounted cash flow	Credit spreads	N/A			(a)
Equity securities		86		Net asset value	Offered quotes	N/A			(a)
Other assets:
Foreign currency swaps		27		Discounted cash flow	Interest rates (USD)	.71%	-	1.12%	(b)
					Interest rates (JPY)	.03%	-	.35%	(c)
					CDS spreads	23 bps	-	140 bps
		70		Discounted cash flow	Interest rates (USD)	.71%	-	1.12%	(b)
					Interest rates (JPY)	.03%	-	.35%	(c)
Total assets		$	1,034
Liabilities:
Other liabilities:
Foreign currency swaps		$	197	Discounted cash flow	Interest rates (USD)	.71%	-	1.12%	(b)
					Interest rates (JPY)	.03%	-	.35%	(c)
					CDS spreads	41 bps	-	140 bps
		43		Discounted cash flow	Interest rates (USD)	.71%	-	1.12%	(b)
					Interest rates (JPY)	.03%	-	.35%	(c)
Total liabilities		$	240

(a) N/A represents securities where the Company receives unadjusted broker quotes and for which there is no transparency into the providers' valuation techniques or unobservable inputs.

(b) Inputs derived from U.S. long-term rates to accommodate long maturity nature of the Company's swaps

(c) Inputs derived from Japan long-term rates to accommodate long maturity nature of the Company's swaps

December 31, 2019
(In millions)	Fair Value			Valuation Technique(s)	Unobservable Input	Range (Weighted Average)
Assets:
Securities available for sale, carried at fair value:
Fixed maturity securities:
Mortgage- and asset-backed securities		$	178	Consensus pricing	Offered quotes	N/A			(a)
Public utilities		224		Discounted cash flow	Credit spreads	N/A			(a)
Banks/financial institutions		23		Consensus pricing	Offered quotes	N/A			(a)
Other corporate		262		Discounted cash flow	Credit spreads	N/A			(a)
Equity securities		80		Net asset value	Offered quotes	N/A			(a)
Other assets:
Foreign currency swaps		106		Discounted cash flow	Interest rates (USD)	1.89%	-	2.09%	(b)
					Interest rates (JPY)	.12%	-	.43%	(c)
					CDS spreads	10 bps	-	100 bps
		63		Discounted cash flow	Interest rates (USD)	1.89%	-	2.09%	(b)
					Interest rates (JPY)	.12%	-	.43%	(c)
Total assets		$	936
Liabilities:
Other liabilities:
Foreign currency swaps		$	118	Discounted cash flow	Interest rates (USD)	1.89%	-	2.09%	(b)
					Interest rates (JPY)	.12%	-	.43%	(c)
					CDS spreads	13 bps	-	159 bps
		8		Discounted cash flow	Interest rates (USD)	1.89%	-	2.09%	(b)
					Interest rates (JPY)	.12%	-	.43%	(c)
Total liabilities		$	126

(a) N/A represents securities where the Company receives unadjusted broker quotes and for which there is no transparency into the providers' valuation techniques or unobservable inputs.

(b) Inputs derived from U.S. long-term rates to accommodate long maturity nature of the Company's swaps

(c) Inputs derived from Japan long-term rates to accommodate long maturity nature of the Company's swaps

The following is a discussion of the significant unobservable inputs or valuation techniques used in determining the fair value of securities and derivatives classified as Level 3.

Net Asset Value

The Company holds certain unlisted equity securities whose fair value is derived based on the financial statements published by the investee. These securities do not trade on an active market and the valuations derived are dependent on the availability of timely financial reporting of the investee. Net asset value is an unobservable input in the determination of fair value of equity securities.

Offered Quotes

In circumstances where the Company's valuation model price is overridden because it implies a value that is not consistent with current market conditions, the Company will solicit bids from a limited number of brokers. The Company also receives unadjusted prices from brokers for its mortgage and asset-backed securities. These quotes are non-binding but are reflective of valuation best estimates at that particular point in time. Offered quotes are an unobservable input in the determination of fair value of mortgage- and asset-backed securities, certain banks/financial institutions, certain other corporate, and equity securities investments.

Interest Rates and CDS Spreads

The significant drivers of the valuation of the foreign exchange swaps are interest rates and CDS spreads. Some of the Company's swaps have long maturities that increase the sensitivity of the swaps to interest rate fluctuations. For the Company's foreign exchange or cross currency swaps that are in a net asset position, an increase in yen interest rates (all other factors held constant) will decrease the present value of the yen final settlement receivable (receive leg), thus decreasing the value of the swap as long as the derivative remains in a net asset position.

Foreign exchange swaps also have a lump-sum final settlement of foreign exchange principal amounts at the termination of the swap. Assuming all other factors are held constant, an increase in yen interest rates will decrease the receive leg and decrease the net value of the swap. Likewise, holding all other factors constant, an increase in U.S. dollar interest rates will increase the swap's net value due to the decrease in the present value of the dollar final settlement payable (pay leg).

The extinguisher feature in most of the Company's VIE swaps results in a cessation of cash flows and no further payments between the parties to the swap in the event of a default on the referenced or underlying collateral. To price this feature, the Company applies the survival probability of the referenced entity to the projected cash flows. The survival probability uses the CDS spreads and recovery rates to adjust the present value of the cash flows. For extinguisher swaps with positive values, an increase in CDS spreads decreases the likelihood of receiving the final exchange payments and reduces the value of the swap.

For additional information on the Company's investments and financial instruments, see the accompanying Notes 1, 3 and 4 and Notes 1, 3 and 4 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report.

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POLICY LIABILITIES

9 Months Ended

Sep. 30, 2020

Insurance Loss Reserves [Abstract]

POLICY LIABILITIES

POLICY LIABILITIES

Changes in the liability for unpaid policy claims were as follows:

	Three Months Ended September 30,					Nine Months Ended September 30,
(In millions)		2020		2019			2020		2019
Unpaid supplemental health claims, beginning of period		$	4,041	$	4,024		$	3,968	$	3,952
Less reinsurance recoverables		37		31			31		28
Net balance, beginning of period		4,004		3,993			3,937		3,924
Add claims incurred during the period related to:
Current year		1,780		1,806			5,354		5,415
Prior years		(105)		(134)			(408)		(437)
Total incurred		1,675		1,672			4,946		4,978
Less claims paid during the period on claims incurred during:
Current year		1,295		1,421			2,971		3,150
Prior years		249		220			1,811		1,794
Total paid		1,544		1,641			4,782		4,944
Effect of foreign exchange rate changes on unpaid claims		42		(3)			76		63
Net balance, end of period		4,177		4,021			4,177		4,021
Add reinsurance recoverables		40		31			40		31
Unpaid supplemental health claims, end of period		4,217		4,052			4,217		4,052
Unpaid life claims, end of period		759		689			759		689
Total liability for unpaid policy claims		$	4,976	$	4,741		$	4,976	$	4,741

The incurred claims development related to prior years reflects favorable claims experience compared to previous estimates. The favorable claims development of $408 million for the nine-month period ended September 30, 2020 comprises approximately $264 million from Japan, which represents approximately 65% of the total. Excluding the impact of foreign exchange of a gain of approximately $3 million from December 31, 2019 to September 30, 2020, the favorable claims development in Japan would have been approximately $261 million, representing approximately 64% of the total. The remainder of the favorable claims development related to prior years for the nine-month period ended September 30, 2020, reflects Aflac U.S. favorable claims experience compared to previous estimates, primarily in cancer and accident lines of business.

The Company has experienced continued favorable claim trends in 2020 for its core health products in Japan. The Company's experience in Japan related to the average length of stay in the hospital for cancer treatment has shown continued decline in the current period. In addition, cancer treatment patterns in Japan are continuing to be influenced by significant advances in early-detection techniques and by the increased use of pathological diagnosis rather than clinical exams. Additionally, follow-up radiation and chemotherapy treatments are occurring more often on an outpatient basis. Such changes in treatment not only increase the quality of life and initial outcomes for the patients, but also decrease the average length of each hospital stay, resulting in favorable claims development.

The decrease in current year incurred claims in 2020 primarily reflects a decrease in Aflac U.S. claims as a result of reduced accidents, wellness medical visits and routine procedures due to shelter-in-place orders and heightened social distancing due to COVID-19.

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REINSURANCE

9 Months Ended

Sep. 30, 2020

Reinsurance Disclosures [Abstract]

REINSURANCE

REINSURANCE

The Company periodically enters into fixed quota-share coinsurance agreements with other companies in the normal course of business. For each of its reinsurance agreements, the Company determines whether the agreement provides indemnification against loss or liability relating to insurance risk in accordance with applicable accounting standards. Reinsurance premiums and benefits paid or provided are accounted for on bases consistent with those used in accounting for the original policies issued and the terms of the reinsurance contracts. Premiums and benefits are reported net of insurance ceded.

The Company has recorded a deferred profit liability related to reinsurance transactions. The remaining deferred profit liability of $1.0 billion as of both September 30, 2020 and December 31, 2019, respectively, is included in future policy

benefits in the consolidated balance sheet and is being amortized into income over the expected lives of the policies. The Company has also recorded a reinsurance recoverable for reinsurance transactions, which is included in other assets in the consolidated balance sheet and had a remaining balance of $1.0 billion and $970 million as of September 30, 2020 and December 31, 2019, respectively. The increase in the reinsurance recoverable balance was driven by the growth in reserves related to the business that has been reinsured as the policies age. The spot yen/dollar exchange rate strengthened by approximately 3.6% and ceded reserves increased approximately 3.5% from December 31, 2019 to September 30, 2020.

The following table reconciles direct premium income and direct benefits and claims to net amounts after the effect of reinsurance which also includes the elimination of inter-segment amounts associated with affiliated reinsurance.

	Three Months Ended September 30,						Nine Months Ended September 30,
(In millions)	2020			2019			2020			2019
Direct premium income		$	4,711		$	4,823		$	14,236		$	14,365
Ceded to other companies:
Ceded Aflac Japan closed blocks		(116)			(121)			(349)			(361)
Other		(22)			(17)			(69)			(50)
Assumed from other companies:
Retrocession activities		49			51			146			151
Other		1			0			5			4
Net premium income		$	4,623		$	4,736		$	13,969		$	14,109
Direct benefits and claims		$	3,051		$	3,106		$	9,054		$	9,185
Ceded benefits and change in reserves for future benefits:
Ceded Aflac Japan closed blocks		(103)			(111)			(314)			(331)
Eliminations		10			11			29			31
Other		(10)			(18)			(54)			(41)
Assumed from other companies:
Retrocession activities		47			49			133			144
Eliminations		(10)			(11)			(29)			(31)
Other		0			1			3			1
Benefits and claims, net		$	2,985		$	3,027		$	8,822		$	8,958

These reinsurance transactions are indemnity reinsurance that do not relieve the Company from its obligations to policyholders. In the event that the reinsurer is unable to meet their obligations, the Company remains liable for the reinsured claims.

As a part of its capital contingency plan, the Company entered into a committed reinsurance facility agreement on December 1, 2015 in the amount of approximately ¥120 billion of reserves. This reinsurance facility agreement was renewed in 2019 and is effective until December 31, 2020. There are also additional commitment periods of a one-year duration, each of which are automatically extended unless notification is received from the reinsurer within 60 days prior to the expiration. The reinsurer can withdraw from the committed facility if Aflac's Standard and Poor's (S&P) rating drops below BBB-. As of September 30, 2020, the Company has not executed a reinsurance treaty under this committed reinsurance facility.

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NOTES PAYABLE AND LEASE OBLIGATIONS

9 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

NOTES PAYABLE AND LEASE OBLIGATIONS

NOTES PAYABLE AND LEASE OBLIGATIONS

A summary of notes payable and lease obligations follows:

(In millions)	September 30, 2020			December 31, 2019
4.00% senior notes paid January 2020		$	0		$	348
3.625% senior notes due June 2023		698			698
3.625% senior notes due November 2024		747			747
3.25% senior notes due March 2025		447			448
2.875% senior notes due October 2026		298			298
3.60% senior notes due April 2030		990			0
6.90% senior notes due December 2039		221			220
6.45% senior notes due August 2040		254			254
4.00% senior notes due October 2046		394			394
4.750% senior notes due January 2049		541			541
Yen-denominated senior notes and subordinated debentures:
.300% senior notes due September 2025 (principal amount ¥12.4 billion)		117			0
.932% senior notes due January 2027 (principal amount ¥60.0 billion)		565			545
.500% senior notes due December 2029 (principal amount ¥12.6 billion)		119			114
.550% senior notes due March 2030 (principal ¥13.3 billion)		125			0
1.159% senior notes due October 2030 (principal amount ¥29.3 billion)		275			266
.843% senior notes due December 2031 (principal amount ¥9.3 billion)		87			84
.750% senior notes due March 2032 (principal amount ¥20.7 billion)		194			0
1.488% senior notes due October 2033 (principal amount ¥15.2 billion)		143			138
.934% senior notes due December 2034 (principal amount ¥9.8 billion)		92			88
.830% senior notes due March 2035 (principal amount ¥10.6 billion)		99			0
1.750% senior notes due October 2038 (principal amount ¥8.9 billion)		83			81
1.122% senior notes due December 2039 (principal amount ¥6.3 billion)		59			57
2.108% subordinated debentures due October 2047 (principal amount ¥60.0 billion)		563			543
.963% subordinated bonds due April 2049 (principal amount ¥30.0 billion)		282			272
Yen-denominated loans:
Variable interest rate loan due September 2026 (.42% in 2020 and .32% in 2019, principal amount ¥5.0 billion)		47			45
Variable interest rate loan due September 2029 (.57% in 2020 and .47% in 2019, principal amount ¥25.0 billion)		235			227
Finance lease obligations payable through 2027		11			12
Operating lease obligations payable through 2049		139			149
Total notes payable and lease obligations		$	7,825		$	6,569

Amounts in the table above are reported net of debt issuance costs and issuance premiums or discounts, if applicable, that are being amortized over the life of the notes.

In April 2020, the Parent Company issued $1.0 billion of senior notes through a U.S. public debt offering. The notes bear interest at a fixed rate of 3.60% per annum, payable semi-annually, and will mature in April 2030. These notes are redeemable at the Parent Company's option in whole at any time or in part from time to time at a redemption price equal to the greater of: (i) the aggregate principal amount of the notes to be redeemed or (ii) the amount equal to the sum of the present values of the remaining scheduled payments for principal of and interest on the notes to be redeemed, not including any portion of the payments of interest accrued as of such redemption date, discounted to such redemption date on a semiannual basis at the yield to maturity for a U.S. Treasury security with a maturity comparable to the remaining term of the notes, plus 45 basis points, plus in each case, accrued and unpaid interest on the principal amount of the notes to be redeemed to, but excluding, such redemption date.

In March 2020, the Parent Company issued four series of senior notes totaling ¥57.0 billion through a public debt offering under its U.S. shelf registration statement. The first series, which totaled ¥12.4 billion, bears interest at a fixed rate

of .300% per annum, payable semi­annually and will mature in September 2025. The second series, which totaled ¥13.3 billion, bears interest at a fixed rate of .550% per annum, payable semi-annually, and will mature in March 2030. The third series, which totaled ¥20.7 billion, bears interest at a fixed rate of .750% per annum, payable semi­annually and will mature in March 2032. The fourth series, which totaled ¥10.6 billion, bears interest at a fixed rate of .830% per annum, payable semi-annually, and will mature in March 2035. These notes may only be redeemed before maturity, in whole but not in part, upon the occurrence of certain changes affecting U.S. taxation, as specified in the indenture governing the terms of the issuance.

In January 2020, the Parent Company used the net proceeds from senior notes issued in December 2019 to redeem $350 million of its 4.00% fixed-rate senior notes due February 2022.

A summary of the Company's lines of credit as of September 30, 2020 follows:

Borrower(s)	Type	Term	Expiration Date	Capacity	Amount Outstanding	Interest Rate on Borrowed Amount	Maturity Period	Commitment Fee	Business Purpose
Aflac Incorporated and Aflac	uncommitted bilateral	364 days	December 18, 2020	$100 million	$0 million	The rate quoted by the bank and agreed upon at the time of borrowing	Up to 3 months	None	General corporate purposes
Aflac Incorporated	unsecured revolving	5 years	March 29, 2024, or the date commitments are terminated pursuant to an event of default	¥100.0 billion	¥0.0 billion	A rate per annum equal to (a) Tokyo interbank market rate (TIBOR) plus, the alternative applicable TIBOR margin during the availability period from the closing date to the commitment termination date or (b) the TIBOR rate offered by the agent to major banks in yen for the applicable period plus, the applicable alternative TIBOR margin during the term out period	No later than March 29, 2024	.30% to .50%, depending on the Parent Company's debt ratings as of the date of determination	General corporate purposes, including a capital contingency plan for the operations of the Parent Company
Aflac Incorporated and Aflac	unsecured revolving	5 years	November 18, 2024, or the date commitments are terminated pursuant to an event of default	$1.0 billion	$0.0 billion	A rate per annum equal to, at the Company's option, either, (a) LIBOR adjusted for certain costs or (b) a base rate determined by reference to the highest of (1) the federal funds rate plus 1/2 of 1%, (2) the rate of interest for such day announced by Mizuho Bank, Ltd. as its prime rate, or (3) the eurocurrency rate for an interest period of one month plus 1.00%, in each case plus an applicable margin	No later than November 18, 2024	.085% to .225%, depending on the Parent Company's debt ratings as of the date of determination	General corporate purposes, including a capital contingency plan for the operations of the Parent Company
Aflac Incorporated and Aflac	uncommitted bilateral	None specified	None specified	$50 million	$0 million	A rate per annum equal to, at the Parent Company's option, either (a) a eurocurrency rate determined by reference to the agent's LIBOR for the interest period relevant to such borrowing or (b) the base rate determined by reference to the greater of (i) the prime rate as determined by the agent, and (ii) the sum of 0.50% and the federal funds rate for such day	Up to 3 months	None	General corporate purposes
Aflac(1)	uncommitted revolving	364 days	November 30, 2020	$250 million	$0 million	USD three-month LIBOR plus 75 basis points per annum	3 months	None	General corporate purposes
Aflac Incorporated(1)	uncommitted revolving	364 days	April 2, 2021	¥50.0 billion	¥0.0 billion	Three-month TIBOR plus 70 basis points per annum	3 months	None	General corporate purposes
Aflac Incorporated(1)	uncommitted revolving	364 days	November 25, 2020	¥50.0 billion	¥0.0 billion	Three-month TIBOR plus 70 basis points per annum	3 months	None	General corporate purposes
Aflac New York(1)	uncommitted revolving	364 days	April 7, 2021	$25 million	$0 million	USD three-month LIBOR plus 75 basis points per annum	3 months	None	General corporate purposes
CAIC(1)	uncommitted revolving	364 days	March 20, 2021	$15 million	$0 million	USD three-month LIBOR plus 75 basis points per annum	3 months	None	General corporate purposes
Tier One Insurance Company(1)	uncommitted revolving	364 days	March 20, 2021	$0.3 million	$0 million	USD three-month LIBOR plus 75 basis points per annum	3 months	None	General corporate purposes
AGV Management Services Japan K.K.(1)	uncommitted revolving	364 days	May 1, 2021	¥500 million	¥350 million	A rate per annum equal to the short-term prime lending rates of banks appearing on the website for the Bank of Japan on the first day of the applicable period	No later than May 1, 2021	None	General corporate purposes

(1) Intercompany credit agreement

The Company was in compliance with all of the covenants of its notes payable and lines of credit at September 30, 2020. No events of default or defaults occurred during the nine-month period ended September 30, 2020.

For additional information, see Notes 4 and 9 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report.

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INCOME TAXES

9 Months Ended

Sep. 30, 2020

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

The Company uses a full year estimated annual effective tax rate to calculate total income tax expense on interim quarters. In addition, the Company discretely recognizes certain other items in the period in which they occur. The estimated annual effective tax rate is calculated as the ratio of projected total income tax expense divided by projected earnings before income taxes for the year. The interim period tax expense (or benefit) is the difference between the year-to-date income tax provision and the amounts reported for the previous interim periods of the year.

The Company’s consolidated effective income tax rate on pretax earnings was (112.9)% and 25.0% for the three-month periods and (30.0)% and 25.5% for the nine-month periods ended September 30, 2020 and 2019, respectively. This combined effective tax rate differs from the U.S. statutory rate primarily due to the release of certain valuation allowances discussed below.

On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security (CARES) Act was signed into law and includes certain income tax provisions relevant to businesses. The Company was required to recognize the effect on the consolidated financial statements in the period the law was enacted, which was the period ended March 31, 2020. For the nine-month period ended September 30, 2020, the CARES Act did not have a material impact on the Company’s consolidated financial statements. At this time, the Company does not expect the impact of the CARES Act to have a material impact on the Company’s consolidated financial statements for the year ended December 31, 2020.

On September 29, 2020, the U.S. Treasury and Internal Revenue Service issued Final and Proposed Regulations which address, among other items, the allocation of insurance expenses in the calculation of the foreign tax credit limitation. These regulations clarify how insurance related expenses are allocated and apportioned for this purpose. The Company had previously established valuation allowances on deferred foreign tax credits due to the uncertainty that previously existed. Under the guidance of these regulations, the Company recognized a one-time income tax benefit of $1.4 billion due to the release of these valuation allowances which were predominantly established on the Company’s deferred foreign tax credit benefits. The Company has determined that this will also reduce its effective tax rate in future periods, subject to any future changes in U.S. tax policy.

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SHAREHOLDERS' EQUITY

9 Months Ended

Sep. 30, 2020

Stockholders' Equity Note [Abstract]

SHAREHOLDERS' EQUITY

SHAREHOLDERS’ EQUITY

The following table is a reconciliation of the number of shares of the Company's common stock for the nine-month periods ended September 30.

(In thousands of shares)	2020	2019
Common stock - issued:
Balance, beginning of period	1,349,309	1,347,540
Exercise of stock options and issuance of restricted shares	1,546	1,650
Balance, end of period	1,350,855	1,349,190
Treasury stock:
Balance, beginning of period	622,516	592,254
Purchases of treasury stock:
Share repurchase program	26,108	23,126
Other	541	589
Dispositions of treasury stock:
Shares issued to AFL Stock Plan	(1,584)	(1,232)
Exercise of stock options	(49)	(382)
Other	(251)	(295)
Balance, end of period	647,281	614,060
Shares outstanding, end of period	703,574	735,130

Outstanding share-based awards are excluded from the calculation of weighted-average shares used in the computation of basic earnings per share (EPS). The following table presents the approximate number of share-based awards to purchase shares, on a weighted-average basis, that were considered to be anti-dilutive and were excluded from the calculation of diluted earnings per share for the following periods.

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2020		2019		2020		2019
Anti-dilutive share-based awards		592		1		857		8

Share Repurchase Program

During the first nine months of 2020, the Company repurchased 26.1 million shares of its common stock for $1.0 billion as part of its share repurchase program. During the first nine months of 2019, the Company repurchased 23.1 million shares of its common stock for $1.2 billion as part of its share repurchase program. In August 2020, the Company's board of directors authorized the purchase of an additional 100 million shares of its common stock. As of September 30, 2020, a remaining balance of 110.9 million shares of the Company's common stock was available for purchase under share repurchase authorizations by its board of directors.

Reclassifications from Accumulated Other Comprehensive Income

The tables below are reconciliations of accumulated other comprehensive income by component for the following periods.

Changes in Accumulated Other Comprehensive Income

Three Months Ended September 30, 2020
(In millions)	Unrealized Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Investment Securities			Unrealized Gains (Losses) on Derivatives			Pension Liability Adjustment			Total
Balance at June 30, 2020		$	(1,469)		$	8,532		$	(36)		$	(277)		$	6,750
Other comprehensive income (loss) before reclassification		179			995			1			(5)			1,170
Amounts reclassified from accumulated other comprehensive income (loss)		0			(7)			0			4			(3)
Net current-period other comprehensive income (loss)		179			988			1			(1)			1,167
Balance at September 30, 2020		$	(1,290)		$	9,520		$	(35)		$	(278)		$	7,917

All amounts in the table above are net of tax.

Three Months Ended September 30, 2019
(In millions)	Unrealized Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Investment Securities			Unrealized Gains (Losses) on Derivatives			Pension Liability Adjustment			Total
Balance at June 30, 2019		$	(1,455)		$	8,055		$	(27)		$	(209)		$	6,364
Other comprehensive income (loss) before reclassification		(24)			884			(6)			(2)			852
Amounts reclassified from accumulated other comprehensive income (loss)		0			31			0			4			35
Net current-period other comprehensive income (loss)		(24)			915			(6)			2			887
Balance at September 30, 2019		$	(1,479)		$	8,970		$	(33)		$	(207)		$	7,251

All amounts in the table above are net of tax.

Nine Months Ended September 30, 2020
(In millions)	Unrealized Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Investment Securities			Unrealized Gains (Losses) on Derivatives			Pension Liability Adjustment			Total
Balance at December 31, 2019		$	(1,623)		$	8,548		$	(33)		$	(277)		$	6,615
Cumulative effect of change in accounting principle - ASU 2019-04		0			848			0			0			848
Balance at January 1, 2020		$	(1,623)		$	9,396		$	(33)		$	(277)		$	7,463
Other comprehensive income (loss) before reclassification		333			20			(2)			(18)			333
Amounts reclassified from accumulated other comprehensive income (loss)		0			104			0			17			121
Net current-period other comprehensive income (loss)		333			124			(2)			(1)			454
Balance at September 30, 2020		$	(1,290)		$	9,520		$	(35)		$	(278)		$	7,917

All amounts in the table above are net of tax.

Nine Months Ended September 30, 2019
(In millions)	Unrealized Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Investment Securities			Unrealized Gains (Losses) on Derivatives			Pension Liability Adjustment			Total
Balance at December 31, 2018		$	(1,847)		$	4,234		$	(24)		$	(212)		$	2,151
Other comprehensive income (loss) before reclassification		368			4,737			(9)			(4)			5,092
Amounts reclassified from accumulated other comprehensive income (loss)		0			(1)			0			9			8
Net current-period other comprehensive income (loss)		368			4,736			(9)			5			5,100
Balance at September 30, 2019		$	(1,479)		$	8,970		$	(33)		$	(207)		$	7,251

All amounts in the table above are net of tax.

The tables below summarize the amounts reclassified from each component of accumulated other comprehensive income into net earnings for the following periods.

Reclassifications Out of Accumulated Other Comprehensive Income

(In millions)	Three Months Ended September 30, 2020
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income			Affected Line Item in the Statements of Earnings
Unrealized gains (losses) on available-for-sale securities		$	13	Net investment gains (losses)
		(6)		Tax (expense) or benefit(1)
		$	7	Net of tax
Amortization of defined benefit pension items:
Actuarial gains (losses)		$	(7)	Acquisition and operating expenses(2)
Prior service (cost) credit		0		Acquisition and operating expenses(2)
		3		Tax (expense) or benefit(1)
		$	(4)	Net of tax
Total reclassifications for the period		$	3	Net of tax

(1) Based on 21% tax rate, with a cumulative adjustment to the first six months of 2020 due to the effects of Final and Proposed Regulations released on September 29, 2020. See Note 9 of the Notes to the Consolidated Financial Statements.

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 12 for additional details).

(In millions)	Three Months Ended September 30, 2019
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income			Affected Line Item in the Statements of Earnings
Unrealized gains (losses) on available-for-sale securities		$	(41)	Net investment gains (losses)
		10		Tax (expense) or benefit(1)
		$	(31)	Net of tax
Amortization of defined benefit pension items:
Actuarial gains (losses)		$	(5)	Acquisition and operating expenses(2)
Prior service (cost) credit		0		Acquisition and operating expenses(2)
		1		Tax (expense) or benefit(1)
		$	(4)	Net of tax
Total reclassifications for the period		$	(35)	Net of tax

(1) Based on 25% blended tax rate

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 12 for additional details).

(In millions)	Nine Months Ended September 30, 2020
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income			Affected Line Item in the Statements of Earnings
Unrealized gains (losses) on available-for-sale securities		$	(132)	Net investment gains (losses)
		28		Tax (expense) or benefit(1)
		$	(104)	Net of tax
Amortization of defined benefit pension items:
Actuarial gains (losses)		$	(22)	Acquisition and operating expenses(2)
Prior service (cost) credit		0		Acquisition and operating expenses(2)
		5		Tax (expense) or benefit(1)
		$	(17)	Net of tax
Total reclassifications for the period		$	(121)	Net of tax

(1) Based on 21% tax rate

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 12 for additional details).

(In millions)	Nine Months Ended September 30, 2019
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income			Affected Line Item in the Statements of Earnings
Unrealized gains (losses) on available-for-sale securities		$	1	Net investment gains (losses)
		0		Tax (expense) or benefit(1)
		$	1	Net of tax
Amortization of defined benefit pension items:
Actuarial gains (losses)		$	(12)	Acquisition and operating expenses(2)
Prior service (cost) credit		0		Acquisition and operating expenses(2)
		3		Tax (expense) or benefit(1)
		$	(9)	Net of tax
Total reclassifications for the period		$	(8)	Net of tax

(1) Based on 26% blended tax rate

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 12 for additional details).

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SHARE-BASED COMPENSATION

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

SHARE-BASED COMPENSATION

SHARE-BASED COMPENSATION

In June 2020, the Company transitioned from E*Trade Financial Corporate Services, Inc. to Fidelity Management Trust Company as the trustee and recordkeeper of the Company's long-term share-based compensation plans.

As of September 30, 2020, the Company has outstanding share-based awards under the Aflac Incorporated Long-Term Incentive Plan (the Plan). Share-based awards are designed to reward employees for their long-term contributions to the Company and provide incentives for them to remain with the Company. The number and frequency of share-based awards are based on competitive practices, operating results of the Company, government regulations, and other factors.

The Plan, as amended on February 14, 2017, allows for a maximum number of shares issuable over its term of 75 million shares including 38 million shares that may be awarded in respect of awards other than options or stock appreciation rights. If any awards granted under the Plan are forfeited or are terminated before being exercised or settled for any reason other than tax forfeiture, then the shares underlying the awards will again be available under the Plan.

The Plan allows awards to Company employees for incentive stock options (ISOs), non-qualifying stock options (NQSOs), restricted stock, restricted stock units, and stock appreciation rights. Non-employee directors are eligible for grants of NQSOs, restricted stock, and stock appreciation rights. As of September 30, 2020, approximately 37.9 million shares were available for future grants under this plan. The ISOs and NQSOs have a term of 10 years, and the share-based awards generally vest upon time-based conditions or time and performance-based conditions. Time-based vesting generally occurs after three years. Performance-based vesting conditions generally include the attainment of goals related to Company financial performance. As of September 30, 2020, the only performance-based awards issued and outstanding were restricted stock awards and units.

Stock options and stock appreciation rights granted under the amended Plan have an exercise price of at least the fair market value of the underlying stock on the grant date and have an expiration date no later than 10 years from the grant date. Time-based restricted stock awards, restricted stock units and stock options granted after January 1, 2017 generally vest on a ratable basis over three years, and awards granted prior to the amendment vest on a three years cliff basis. The Compensation Committee of the Board of Directors has the discretion to determine vesting schedules.

Share-based awards granted to U.S.-based grantees are settled with authorized but unissued Company stock, while those issued to Japan-based grantees are settled with treasury shares.

The following table provides information on stock options outstanding and exercisable at September 30, 2020.

	Stock Option Shares (in thousands)		Weighted-Average Remaining Term (in years)		Aggregate Intrinsic Value (in millions)			Weighted-Average Exercise Price Per Share
Outstanding		3,288		4.0		$	21		$	30.18
Exercisable		3,229		3.9		21			30.08

The Company received cash from the exercise of stock options in the amount of $9 million during the first nine months of 2020, compared with $36 million in the first nine months of 2019. The tax benefit realized as a result of stock option exercises and restricted stock releases was $19 million in the first nine months of 2020, compared with $26 million in the first nine months of 2019.

As of September 30, 2020, total compensation cost not yet recognized in the Company's consolidated financial statements related to restricted stock awards was $46 million, of which $20 million (1 million shares) was related to restricted stock awards with a performance-based vesting condition. The Company expects to recognize these amounts over a weighted-average period of approximately 1.7 years. There are no other contractual terms covering restricted stock awards once vested.

The following table summarizes restricted stock activity during the nine-month period ended September 30, 2020.

(In thousands of shares)	Shares		Weighted-Average Grant-Date Fair Value Per Share
Restricted stock at December 31, 2019	2,715	(1)		$	43.74
Granted in 2020	1,494			45.97
Canceled in 2020	(58)			49.70
Vested in 2020	(1,556)			35.20
Restricted stock at September 30, 2020	2,595			$	48.69

(1) The balance has been adjusted to include dividends

In February 2020, the Company granted 409 thousand performance-based stock awards, which are contingent on the achievement of the Company's financial performance metrics and its market-based conditions. On the date of grant, the Company estimated the fair value of restricted stock awards with market-based conditions using a Monte Carlo simulation model. The model discounts the value of the stock at the assumed vesting date based on the risk-free interest rate. Based on estimates of actual performance versus the vesting thresholds, the calculated fair value percentage pay-out estimate will be updated each quarter.

The Company uses third-party analyses to assist in developing the assumptions used in, as well as calibrating, a Monte Carlo simulation model. The Company is responsible for determining the assumptions used in estimating the fair value of its share-based payment awards.

For additional information on the Company's long-term share-based compensation plans and the types of share-based awards, see Note 12 of the Notes to the Consolidated Financial Statements included in the 2019 Annual Report.

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BENEFIT PLANS

9 Months Ended

Sep. 30, 2020

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

BENEFIT PLANS

BENEFIT PLANS

The Company has funded defined benefit plans in Japan and the U.S., however the U.S. plan was frozen to new participants effective October 1, 2013. The Company also maintains non-qualified, unfunded supplemental retirement plans that provide defined pension benefits in excess of limits imposed by federal tax law for certain Japanese, U.S. and former employees, however the U.S. plan was frozen to new participants effective January 1, 2015. U.S. employees who are not participants in the defined benefit plan receive a nonelective 401(k) employer contribution.

The Company provides certain health care benefits for eligible U.S. retired employees, their beneficiaries and covered dependents (other postretirement benefits). The health care plan is contributory and unfunded. Effective January 1, 2014, employees eligible for benefits included the following: (1) active employees whose age plus service, in years, equaled or exceeded 80 (rule of 80); (2) active employees who were age 55 or older and have met the 15 years of service requirement; (3) active employees who would meet the rule of 80 in the next 5 years; (4) active employees who were age

55 or older and who would meet the 15 years of service requirement within the next 5 years; and (5) current retirees. For certain employees and former employees, additional coverage is provided for all medical expenses for life.

Pension and other postretirement benefit expenses are included in acquisition and operating expenses in the consolidated statement of earnings, which includes other components of net periodic pension cost and postretirement costs (other than service costs) of $6 million for the three-month periods and $18 million for the nine-month periods ended September 30, 2020 and 2019, respectively. Total net periodic cost includes the following components:

	Three Months Ended September 30,
	Pension Benefits												Other
	Japan						U.S.						Postretirement Benefits
(In millions)	2020			2019			2020			2019			2020			2019
Components of net periodic benefit cost:
Service cost		$	6		$	6		$	7		$	5		$	0		$	0
Interest cost		1			1			9			10			0			0
Expected return on plan assets		(2)			(2)			(9)			(8)			0			0
Amortization of net actuarial loss		1			1			6			3			0			1
Net periodic (benefit) cost		$	6		$	6		$	13		$	10		$	0		$	1

	Nine Months Ended September 30,
	Pension Benefits												Other
	Japan						U.S.						Postretirement Benefits
(In millions)	2020			2019			2020			2019			2020			2019
Components of net periodic benefit cost:
Service cost		$	18		$	16		$	21		$	17		$	0		$	0
Interest cost		3			4			25			28			1			1
Expected return on plan assets		(6)			(5)			(27)			(22)			0			0
Amortization of net actuarial loss		3			3			18			8			1			1
Net periodic (benefit) cost		$	18		$	18		$	37		$	31		$	2		$	2

During the nine months ended September 30, 2020, Aflac Japan contributed approximately $28 million (using the weighted-average yen/dollar exchange rate for the nine-month period ended September 30, 2020) to the Japanese funded defined benefit plan, and Aflac U.S. did not make a contribution to the U.S. funded defined benefit plan.

For additional information regarding the Company's Japanese and U.S. benefit plans, see Note 14 of the Notes to the Consolidated Financial Statements in the 2019 Annual Report.

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COMMITMENTS AND CONTINGENT LIABILITIES

9 Months Ended

Sep. 30, 2020

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENT LIABILITIES

COMMITMENTS AND CONTINGENT LIABILITIES

Effective for 2020, the Company entered into an outsourcing agreement with an information technology and data services company to provide application maintenance and development services for its Japanese operation. As of September 30, 2020, the agreement has a remaining term of five years and an aggregate remaining cost of ¥14.5 billion ($137 million using the September 30, 2020, exchange rate).

The Company is a defendant in various lawsuits considered to be in the normal course of business. Members of the Company's senior legal and financial management teams review litigation on a quarterly and annual basis. The final results of any litigation cannot be predicted with certainty. Although some of this litigation is pending in states where large punitive damages, bearing little relation to the actual damages sustained by plaintiffs, have been awarded in recent years, the Company believes the outcome of pending litigation will not have a material adverse effect on its financial position, results of operations, or cash flows.

See Note 3 of the Notes to the Consolidated Financial Statements for details on certain investment commitments.

Guaranty Fund Assessments

The U.S. insurance industry has a policyholder protection system that is monitored and regulated by state insurance departments. These life and health insurance guaranty associations are state entities (in all 50 states as well as Puerto Rico and the District of Columbia) created to protect policyholders of an insolvent insurance company. All insurance companies (with limited exceptions) licensed to sell life or health insurance in a state must be members of that state’s guaranty association. Under state guaranty association laws, certain insurance companies can be assessed (up to prescribed limits) for certain obligations to the policyholders and claimants of impaired or insolvent insurance companies that write the same line or similar lines of business.

In 2009, the Pennsylvania Insurance Commissioner placed long-term care insurer Penn Treaty Network America Insurance Company and its subsidiary American Network Insurance Company (collectively referred to as Penn Treaty), neither of which is affiliated with Aflac, in rehabilitation and petitioned a state court for approval to liquidate Penn Treaty. A final order of liquidation was granted by a recognized judicial authority on March 1, 2017, and as a result, Penn Treaty is in the process of liquidation. The Company estimated and recognized the impact of its share of guaranty fund assessments resulting from the liquidation using a discounted rate of 4.25%. The Company recognized a discounted liability for the assessments of $62 million (undiscounted $94 million), offset by discounted premium tax credits of $48 million (undiscounted $74 million), for a net $14 million impact to net income in the quarter ended March 31, 2017. The Company paid a majority of these assessments by September 30, 2020. The Company used the cost estimate provided as of the liquidation date by the National Organization of Life and Health Guaranty Associations (NOLHGA) to calculate its estimated assessments and tax credits.

Guaranty fund assessments for the nine-month period ended September 30, 2020 were immaterial.

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SUBSEQUENT EVENTS

9 Months Ended

Sep. 30, 2020

Subsequent Events [Abstract]

Subsequent Events

SUBSEQUENT EVENTS

On October 26, 2020, the Company entered into an agreement to purchase approximately $200 million in newly issued common stock of Trupanion, Inc., a provider of medical insurance for pets in the United States and Canada. The Company closed on approximately $60 million of this transaction on October 26, 2020. Subject to regulatory approvals and customary closing conditions, the remainder of this transaction is expected to close in the fourth quarter of 2020 and result in the Company owning approximately 9% of the outstanding common stock of Trupanion, Inc. The Company also announced that it has entered into an alliance agreement with Trupanion, Inc. to sell pet insurance on an exclusive basis in the United States, subject to certain exceptions, and to explore on an exclusive basis potential distribution opportunities for pet insurance in Japan.

In October 2020, Aflac U.S. made a $100 million contribution to the U.S. funded defined benefit plan.

In September 2020, the Company announced a voluntary separation program for certain U.S. employees. The program provides eligible employees with a severance package, including twelve months of salary, the employee's targeted bonus payout for 2020 and one year of Consolidated Omnibus Budget Reconciliation Act (COBRA) or retiree medical, if eligible. The volunteer period opened on September 15, 2020 and closed October 1, 2020. Employees accepted into this program were notified in October 2020 and the Company expects transitions to be completed by December 31, 2020. The Company expects to take a one-time severance charge related to the program in the fourth quarter of 2020 of approximately $45 million.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

9 Months Ended

Sep. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Description of Business and Basis of Presentation

Description of Business

Aflac Incorporated (the Parent Company) and its subsidiaries (collectively, the Company) primarily sell supplemental health and life insurance in the United States (U.S.) and Japan. The Company’s operations consist of two reportable business segments: Aflac Japan and Aflac U.S. The Parent Company's primary insurance subsidiaries are Aflac Life Insurance Japan Ltd. (Aflac Japan) and American Family Life Assurance Company of Columbus (Aflac); Continental American Insurance Company (CAIC), branded as Aflac Group Insurance (AGI); American Family Life Assurance Company of New York (Aflac New York); Tier One Insurance Company (TOIC) and Argus Dental & Vision, Inc. (Argus), which provides a platform for Aflac Dental and Vision in the U.S. (collectively, Aflac U.S.). Aflac Japan's revenues, including net gains and losses on its investment portfolio, accounted for 68% and 69% of the Company's total revenues in the nine-month periods ended September 30, 2020 and 2019, respectively. The percentage of the Company's total assets attributable to Aflac Japan was 83% at September 30, 2020, compared with 84% at December 31, 2019.

Basis of Presentation

The Company prepares its financial statements in accordance with U.S. generally accepted accounting principles (U.S. GAAP). These principles are established primarily by the Financial Accounting Standards Board (FASB). In these Notes to the Consolidated Financial Statements, references to U.S. GAAP issued by the FASB are derived from the FASB Accounting Standards CodificationTM (ASC). The preparation of financial statements in conformity with U.S. GAAP requires the Company to make estimates based on currently available information when recording transactions resulting from business operations. The most significant items on the Company's balance sheet that involve a greater degree of accounting estimates and actuarial determinations subject to changes in the future are the valuation of investments and derivatives, deferred policy acquisition costs (DAC), liabilities for future policy benefits and unpaid policy claims, and income taxes. These accounting estimates and actuarial determinations are sensitive to market conditions, investment yields, mortality, morbidity, commission and other acquisition expenses, and terminations by policyholders. As additional information becomes available, or actual amounts are determinable, the recorded estimates will be revised and reflected in operating results. Although some variability is inherent in these estimates, the Company believes the amounts provided are adequate.

The unaudited consolidated financial statements include the accounts of the Parent Company, its subsidiaries and those entities required to be consolidated under applicable accounting standards. All material intercompany accounts and transactions have been eliminated.

In the opinion of management, the accompanying unaudited consolidated financial statements of the Company contain all adjustments, consisting of normal recurring accruals, which are necessary to fairly present the consolidated balance sheets as of September 30, 2020, and December 31, 2019, the consolidated statements of earnings and comprehensive income (loss) for the three-month and nine-month periods ended September 30, 2020 and 2019, the consolidated statement of shareholders' equity for the three-month periods ended March 31, 2020 and 2019, June 30, 2020 and 2019 and September 30, 2020 and 2019, and the consolidated statement of cash flows for the nine-month periods ended September 30, 2020 and 2019. Results of operations for interim periods are not necessarily indicative of results for the entire year. As a result, these financial statements should be read in conjunction with the financial statements and notes thereto included in the Company's annual report on Form 10-K for the year ended December 31, 2019 (2019 Annual Report).

COVID-19: On March 11, 2020, the World Health Organization declared the COVID-19 outbreak a global pandemic. The impact of COVID-19 on the Company continues to evolve, and its future effects remain uncertain. The Company continues to closely monitor the effects and risks of COVID-19 to assess its impact on economic conditions in Japan and the U.S. and on the Company's business, financial condition, results of operations, liquidity and capital position.

    Liquidity and Capital Resources

The Company entered the crisis having maintained capital ratios in Japan and the U.S. at a level designed to absorb a degree of market volatility. To further support liquidity and capital resources, the Parent Company, in

March 2020, issued four series of senior notes totaling ¥57.0 billion and, in April 2020, issued $1.0 billion in senior notes through public debt offerings under its U.S. shelf registration statement. The Company has available liquidity in its unsecured revolving credit facilities of $1.0 billion and ¥100.0 billion and currently has no borrowings under either of these facilities. In April 2020, Aflac increased its internal limit for Federal Home Loan Bank of Atlanta (FHLB) borrowings to $800 million, $300 million of which the Company has designated to be used for short-term liquidity needs and subject to qualified collateral availability and other conditions. The Company continues to evaluate other sources of liquidity including reinvestment cash flows and selling investments.

    Loan Modifications

On March 27, 2020, the Coronavirus, Aid, Relief, and Economic Security (CARES) Act, which provides relief from certain requirements under GAAP, was signed into law. Section 4013 of the CARES Act gives entities temporary relief from the accounting and disclosure requirements for troubled debt restructurings (TDRs) under ASC 310-40 in certain situations. On April 7, 2020, certain regulatory banking agencies, in consultation with the FASB, issued the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (Interagency statement) applicable for all entities, which offers practical expedients for evaluating whether loan modifications in response to the COVID-19 pandemic are treated as TDRs. The Company will apply relief granted under Section 4013 of the CARES Act and the Interagency statement with respect to certain qualifying loan modifications. For loan modifications that qualify under the CARES Act, TDR accounting and reporting is suspended through the period of the modification; however, the Company will continue to apply its existing non-accrual policies including consideration of the loan's past due status which is determined on the basis of the contractual terms of the loan. Once a loan has been contractually modified, the past due status is generally based on the updated terms including payment deferrals. As of September 30, 2020, loan modifications did not have a material impact on the Company's results of operations. See Note 3 of Notes to the Consolidated Financial Statements for additional details.

Reclassifications

Reclassifications: Certain reclassifications have been made to prior-year amounts to conform to current-year reporting classifications. These reclassifications had no impact on net earnings or total shareholders' equity.

Recently Adopted Accounting Pronouncements

Standard	Description	Date of Adoption	Effect on Financial Statements or Other Significant Matters
Accounting Standards Update (ASU) 2020-04 Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting	In March 2020, the FASB issued amendments that provide optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships, and other transactions affected by the reference rate reform if certain criteria are met. The amendments in this ASU only apply to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. An entity may elect to apply the amendments as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020, up to the date that the financial statements are available to be issued. The amendments generally expire on December 31 2022, i.e., they do not apply to contract modifications made after December 31, 2022, new hedging relationships entered into after December 31, 2022, and hedging relationships evaluated for periods after December 31, 2022.	April 1, 2020	The adoption of the new guidance did not have an impact on the Company’s financial statements. The Company will continue to evaluate the impacts of reference rate reform on contract modifications and hedging relationships through December 31, 2022.
ASU 2019-04 Codification Improvements to Topic 326, Financial Instruments - Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments	In April 2019, the FASB issued Codification improvements to clarify and correct certain areas of guidance amended as part of ASU 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities; ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments; and ASU 2017-12, Derivative and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The most significant of these improvements to the Company was related to the Codification improvement to ASU 2017-12 and the clarification that a one-time reclassification of assets that are eligible to be hedged under the last-of-layer method (i.e., certain pre-payable securities) from held-to-maturity to available-for-sale is allowed under the new hedge accounting guidance and would not impact the Company’s ability to continue to classify other bonds as held-to-maturity. The other amendments related to ASU 2017-12 and 2016-01 are either not significant, or were previously implemented as part of the related ASU adoptions. Applicable amendments related to ASU 2016-13 are discussed within the recent adoption of that update below.	January 1, 2020	The adoption of this guidance resulted in a reclassification of $6.9 billion (at amortized cost) of pre-payable fixed-maturity securities from the held-to-maturity to the available-for-sale category. The reclassification resulted in recording in accumulated other comprehensive income a net unrealized gain of $848 million on an after-tax basis, based on the securities’ fair values on the reclassification date. The reclassification impacted the adoption of ASU 2016-13 (see ASU 2016-13 below for additional details).

Standard	Description	Date of Adoption	Effect on Financial Statements or Other Significant Matters
ASU 2018-17 Consolidation: Targeted Improvements to Related Party Guidance for Variable Interest Entities	In October 2018, the FASB issued targeted improvements which provide that indirect interests held through related parties under common control should be considered on a proportional basis for determining whether fees paid to decision makers and service providers are variable interests.	January 1, 2020	The adoption of this guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures.
ASU 2018-13 Fair Value Measurement, Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement	In August 2018, the FASB issued amendments to the disclosure requirements on fair value measurements. The amendments remove, modify, and add certain disclosures.	January 1, 2020	The adoption of this guidance did not have a significant impact on the Company’s financial position, results of operations, or disclosures.
ASU 2017-04 Intangibles - Goodwill and Other: Simplifying the Test for Goodwill Impairment	In January 2017, the FASB issued amendments simplifying the subsequent measurement of goodwill. An entity, under this update, is no longer required to perform a hypothetical purchase price allocation to measure goodwill impairment. Instead, the entity should perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount.	January 1, 2020	The adoption of this guidance did not have a significant impact on the Company's financial position, results of operations, or disclosures.
ASU 2016-13 Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments as clarified and amended by: ASU 2019-04, Codification Improvements to Topic 326, Financial Instruments - Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments, ASU 2019-05, Financial Instruments - Credit Losses (Topic 326), Targeted Transition Relief and ASU 2019-11, Codification Improvements to Topic 326, Financial Instruments- Credit Losses	In June 2016, the FASB issued amendments that require a financial asset (or a group of financial assets) measured at amortized cost to be presented net of an allowance for credit losses (Credit Losses ASU) in order to reflect the amount expected to be collected on the financial asset(s). The measurement of expected credit losses is amended by replacing the incurred loss impairment methodology with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information. Credit losses on available-for-sale debt securities is measured in a manner similar to prior U.S. GAAP; however, the amendments require that credit losses be presented as an allowance rather than as a write-down. Other amendments include changes to the balance sheet presentation and interest income recognition of purchased financial assets with a more-than-insignificant credit deterioration since origination (PCD financial assets).	January 1, 2020	The Company recorded a cumulative effect adjustment with a decrease to beginning 2020 retained earnings of $56 million, net of taxes. See Note 3 of the Notes to the Consolidated Financial Statements for credit loss disclosures. The following line items in the consolidated balance sheets were most significantly impacted by the adoption of the new accounting standard: •Fixed maturity securities held to maturity, at amortized cost •Commercial mortgage and other loans •Reinsurance recoverable, included within Other assets

Description of Accounting Pronouncements Pending Adoption

Standard	Description	Effect on Financial Statements or Other Significant Matters
ASU 2020-01 Clarifying the interactions between Topic 321, Topic 323, and Topic 815	In January 2020, the FASB issued amendments clarifying that an entity should consider observable transactions that require it to either apply or discontinue the equity method of accounting for the purposes of applying the measurement alternative in accordance with Topic 321 immediately before applying or upon discontinuing the equity method. In addition, the amendments clarify that for the purpose of applying certain derivative guidance in Topic 815, an entity should not consider whether, upon the settlement of the forward contract or exercise of the purchased option, individually or with existing investments, the underlying securities would be accounted for under the equity method in Topic 323 or the fair value option in accordance with the financial instruments guidance in Topic 825. An entity also would evaluate the remaining characteristics in Topic 815 to determine the accounting for those forward contracts and purchased options. The amendments are effective for public business entities for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. Early adoption is permitted.	The adoption of this guidance is not expected to have a significant impact on the Company's financial position, results of operations, or disclosures.
ASU 2018-12 Financial Services - Insurance, Targeted Improvements to the Accounting for Long-Duration Contracts as clarified and amended by: ASU 2019-09 Financial Services - Insurance (Topic 944): Effective Date	In August 2018, the FASB issued amendments that will significantly change how insurers account for long-duration contracts. The amendments will change existing recognition, measurement, presentation, and disclosure requirements. Issues addressed in the new guidance include: 1) a requirement to review and, if there is a change, update assumptions for the liability for future policy benefits at least annually, and to update the discount rate assumption quarterly, 2) accounting for market risk benefits at fair value, 3) simplified amortization for deferred acquisition costs, and 4) enhanced financial statement presentation and disclosures. In November 2019, the FASB issued an amendment extending the effective date for public business entities that meet the definition of an SEC filer, excluding entities eligible to be small reporting companies as defined by the SEC, by one year. The amendments are now effective for the Company for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2021. Early application of the amendments is permitted. In September 2020, the FASB Board voted in favor of providing an additional year deferral for all insurance entities due to the impact of COVID-19. It is expected that this Update will be finalized in the fourth quarter of 2020 which would result in an effective date for Aflac of January 1, 2023.	The Company is thoroughly evaluating the impact of adoption and expects that the adoption will have a significant impact on the Company’s financial position, results of operations, and disclosures. The Company anticipates that the requirement to update assumptions for liability for future policy benefits will have a significant impact on its results of operations, systems, processes and controls while the requirement to update the discount rate will have a significant impact on its equity. The Company has no products with market risk benefits. The Company does not expect to early adopt the updated standard and has selected a modified retrospective transition method.

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BUSINESS SEGMENT INFORMATION (Tables)

9 Months Ended

Sep. 30, 2020

Segment Reporting [Abstract]

Reconciliation of Revenue from Segments to Consolidated

Information regarding operations by reportable segment and Corporate and other, follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In millions)	2020		2019		2020		2019
Revenues:
Aflac Japan:
Net earned premiums	$	3,168	$	3,241	$	9,476	$	9,593
Adjusted net investment income (1),(2)	663		659		1,939		1,878
Other income	11		12		32		34
Total adjusted revenue Aflac Japan	3,842		3,912		11,447		11,505
Aflac U.S.:
Net earned premiums	1,407		1,445		4,348		4,365
Net investment income (3)	175		183		523		540
Other income	24		2		78		6
Total adjusted revenue Aflac U.S.	1,606		1,630		4,949		4,911
Corporate and other (4)	87		97		292		287
Total adjusted revenues	5,535		5,639		16,688		16,703
Net investment gains (losses) (1),(2),(3),(4)	130		(103)		(454)		1
Total revenues	$	5,665	$	5,536	$	16,234	$	16,704

(1) Amortized hedge costs of $51 and $66 for the three-month periods and $155 and $191 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies have been reclassified from net investment gains (losses) and reported as a deduction from net investment income when analyzing operations.

(2) Net interest cash flows from derivatives associated with certain investment strategies of $6 and $(4) for the three-month periods and $5 and $(18) for the nine-month periods ended September 30, 2020 and 2019, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

(3) Net interest cash flows from derivatives associated with certain investment strategies of $1 for the three-month period and $2 for the nine-month period ended September 30, 2020, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

(4) Amortized hedge income of $22 and $21 for the three-month periods $78 and $61 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies has been reclassified from net investment gains (losses) and reported as an increase to net investment income when analyzing operations.

Reconciliation of Adjusted Profit (Loss) from Segments to Consolidated

	Three Months Ended September 30,				Nine Months Ended September 30,
(In millions)	2020		2019		2020		2019
Pretax adjusted earnings:
Aflac Japan (1),(2)	$	747	$	838	$	2,442	$	2,504
Aflac U.S. (3)	329		335		1,082		996
Corporate and other (4),(5)	(39)		(17)		(69)		(62)
Pretax adjusted earnings (6)	1,037		1,156		3,455		3,438
Net investment gains (losses) (1),(2),(3),(4),(5)	117		(120)		(497)		(49)
Other income (loss)	(1)		0		(16)		(1)
Total earnings before income taxes	$	1,153	$	1,036	$	2,942	$	3,388
Income taxes applicable to pretax adjusted earnings	$	43	$	293	$	659	$	880
Effect of foreign currency translation on after-tax adjusted earnings	3		15		17		2

(1) Amortized hedge costs of $51 and $66 for the three-month periods and $155 and $191 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies have been reclassified from net investment gains (losses) and reported as a deduction from net investment income when analyzing operations.

(2) Net interest cash flows from derivatives associated with certain investment strategies of $6 and $(4) for the three-month periods and $5 and $(18) for the nine-month periods ended September 30, 2020 and 2019, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

(3) Net interest cash flows from derivatives associated with certain investment strategies of $1 for the three-month period and $2 for the nine-month period ended September 30, 2020, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

(4) Amortized hedge income of $22 and $21 for the three-month periods and $78 and $61 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies has been reclassified from net investment gains (losses) and reported as an increase in net investment income when analyzing operations.

(5) A gain of $13 and $16 for three-month periods and $43 and $50 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to the interest rate component of the change in fair value of foreign currency swaps on notes payable has been reclassified from net investment gains (losses) and included in adjusted earnings when analyzing operations.

(6) Includes $44 and $34 for the three-month periods and $122 and $100 for the nine-month periods ended September 30, 2020, and 2019, respectively, of interest expense on debt.

Reconciliation of Assets from Segment to Consolidated

Assets were as follows:

(In millions)	September 30, 2020			December 31, 2019
Assets:
Aflac Japan		$	133,995		$	127,523
Aflac U.S.		22,621			20,945
Corporate and other		4,339			4,300
Total assets		$	160,955		$	152,768

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INVESTMENTS (Tables)

9 Months Ended

Sep. 30, 2020

Available-for-Sale Debt Securities

The amortized cost for the Company's investments in fixed maturity securities, the cost for equity securities and the fair values of these investments are shown in the following tables.

	September 30, 2020
(In millions)	Amortized Cost		Allowance for Credit Losses		Gross Unrealized Gains		Gross Unrealized Losses		Fair   Value
Securities available for sale, carried at fair value through other comprehensive income:
Fixed maturity securities:
Yen-denominated:
Japan government and agencies	$	32,646	$	0	$	4,297	$	42	$	36,901
Municipalities	1,013		0		305		3		1,315
Mortgage- and asset-backed securities	337		0		28		1		364
Public utilities	4,585		0		960		1		5,544
Sovereign and supranational	1,054		0		82		4		1,132
Banks/financial institutions	7,505		0		683		180		8,008
Other corporate	7,934		0		1,484		86		9,332
Total yen-denominated	55,074		0		7,839		317		62,596
U.S. dollar-denominated:
U.S. government and agencies	276		0		18		0		294
Municipalities	1,143		0		161		0		1,304
Mortgage- and asset-backed securities	344		0		10		1		353
Public utilities	3,942		0		924		12		4,854
Sovereign and supranational	230		0		66		6		290
Banks/financial institutions	2,956		0		738		6		3,688
Other corporate	25,973		38		4,110		296		29,749
Total U.S. dollar-denominated	34,864		38		6,027		321		40,532
Total securities available for sale	$	89,938	$	38	$	13,866	$	638	$	103,128

	December 31, 2019
(In millions)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair   Value
Securities available for sale, carried at fair value through other comprehensive income:
Fixed maturity securities:
Yen-denominated:
Japan government and agencies	$	30,929	$	5,169	$	0	$	36,098
Municipalities	516		116		3		629
Mortgage- and asset-backed securities	229		25		0		254
Public utilities	1,855		406		0		2,261
Sovereign and supranational	680		50		0		730
Banks/financial institutions	6,152		700		86		6,766
Other corporate	5,323		944		24		6,243
Total yen-denominated	45,684		7,410		113		52,981
U.S dollar-denominated:
U.S. government and agencies	293		9		0		302
Municipalities	1,077		141		0		1,218
Mortgage- and asset-backed securities	149		7		0		156
Public utilities	3,804		725		10		4,519
Sovereign and supranational	239		73		0		312
Banks/financial institutions	2,879		646		4		3,521
Other corporate	25,246		3,255		248		28,253
Total U.S. dollar-denominated	33,687		4,856		262		38,281
Total securities available for sale	$	79,371	$	12,266	$	375	$	91,262

Held-to-maturity Securities

	September 30, 2020
(In millions)	Amortized Cost		Allowance for Credit Losses		Net Carrying Amount		Gross Unrealized Gains		Gross Unrealized Losses		Fair   Value
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Yen-denominated:
Japan government and agencies	$	22,941	$	3	$	22,938	$	5,564	$	0	$	28,502
Municipalities	370		0		370		120		0		490
Public utilities	47		1		46		14		0		60
Sovereign and supranational	564		5		559		164		0		723
Other corporate	24		0		24		8		0		32
Total yen-denominated	23,946		9		23,937		5,870		0		29,807
Total securities held to maturity	$	23,946	$	9	$	23,937	$	5,870	$	0	$	29,807

	December 31, 2019
(In millions)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Yen-denominated:
Japan government and agencies	$	22,241	$	6,050	$	0	$	28,291
Municipalities	821		262		0		1,083
Mortgage- and asset-backed securities	16		1		0		17
Public utilities	2,535		419		0		2,954
Sovereign and supranational	1,123		197		0		1,320
Banks/financial institutions	916		105		3		1,018
Other corporate	2,433		485		7		2,911
Total yen-denominated	30,085		7,519		10		37,594
Total securities held to maturity	$	30,085	$	7,519	$	10	$	37,594

Equity securities, FV-NI

(In millions)	September 30, 2020			December 31, 2019
Equity securities, carried at fair value through net earnings:	Fair Value			Fair Value
Equity securities:
Yen-denominated		$	630		$	658
U.S. dollar-denominated		145			144
Total equity securities		$	775		$	802

Investments Classified by Contractual Maturity Date

The contractual and economic maturities of the Company's investments in fixed maturity securities at September 30, 2020, were as follows:

(In millions)	Amortized Cost (1)			Fair Value
Available for sale:
Due in one year or less		$	1,031		$	1,053
Due after one year through five years		8,938			9,175
Due after five years through 10 years		13,159			15,092
Due after 10 years		66,091			77,091
Mortgage- and asset-backed securities		681			717
Total fixed maturity securities available for sale		$	89,900		$	103,128
Held to maturity:
Due in one year or less		$	0		$	0
Due after one year through five years		0			0
Due after five years through 10 years		251			292
Due after 10 years		23,686			29,515
Mortgage- and asset-backed securities		0			0
Total fixed maturity securities held to maturity		$	23,937		$	29,807

(1) Net of allowance for credit losses

Investment Exposures Exceeding Ten Percent Shareholders Equity

Investment exposures that individually exceeded 10% of shareholders' equity were as follows:

	September 30, 2020			December 31, 2019
(In millions)	Credit Rating	Amortized Cost	Fair Value	Credit Rating	Amortized Cost	Fair Value
Japan National Government(1)	A+	$54,078	$63,588	A+	$51,726	$62,584

(1)Japan Government Bonds (JGBs) or JGB-backed securities

Gain (Loss) on Investments

Information regarding pretax net gains and losses from investments is as follows:

	Three Months Ended September 30,					Nine Months Ended September 30,
(In millions)	2020		2019			2020		2019
Net investment gains (losses):
Sales and redemptions:
Fixed maturity securities available for sale:
Gross gains from sales	$	7	$	11		$	28	$	55
Gross losses from sales	0		(18)			(46)		(29)
Foreign currency gains (losses) on sales and redemptions	(5)		(21)			(39)		(12)
Total sales and redemptions	2		(28)			(57)		14
Equity securities	12		18			(106)		65
Loan loss reserves (1)	0		(5)			0		(8)
Credit losses:
Fixed maturity securities available for sale	0		(13)		(2)	(75)		(13)		(2)
Fixed maturity securities held to maturity	0		0			1		0
Commercial mortgage and other loans	78		0			(86)		0
Loan commitments	64		0			(17)		0
Reinsurance recoverables and other	0		0			(2)		0
Total credit losses	142		(13)			(179)		(13)
Derivatives and other:
Derivative gains (losses)	138		(146)			173		(24)
Foreign currency gains (losses)	(186)		21			(356)		(181)
Total derivatives and other	(48)		(125)			(183)		(205)
Total net investment gains (losses)	$	108	$	(153)		$	(525)	$	(147)

(1) U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only

(2) Includes other-than-temporary impairment losses for prior year

Net Effect on Shareholders' Equity of Unrealized Gains and Losses from Investment Securities

The net effect on shareholders’ equity of unrealized gains and losses from fixed maturity securities was as follows:

(In millions)	September 30, 2020			December 31, 2019
Unrealized gains (losses) on securities available for sale		$	13,228		$	11,891
Deferred income taxes		(3,708)			(3,343)
Shareholders’ equity, unrealized gains (losses) on fixed maturity securities		$	9,520		$	8,548

Investments Gross Unrealized Loss Aging

The following tables show the fair values and gross unrealized losses of the Company's available-for-sale investments for the period ended September 30, 2020 and available-for-sale and held-to-maturity investments for prior periods that were in an unrealized loss position, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position.

	September 30, 2020
	Total						Less than 12 months						12 months or longer
(In millions)	Fair Value			Unrealized Losses			Fair Value			Unrealized Losses			Fair Value			Unrealized Losses
Fixed maturity securities available for sale:
Japan government and agencies:
Yen-denominated		$	1,997		42			1,997			42			0			0
Municipalities:
Yen-denominated		74			3			60			2			14			1
Mortgage- and asset- backed securities:
U.S. dollar-denominated		67			1			67			1			0			0
Yen-denominated		36			1			36			1			0			0
Public utilities:
U.S. dollar-denominated		342			12			210			6			132			6
Yen-denominated		214			1			214			1			0			0
Sovereign and supranational:
U.S. dollar-denominated		36			6			36			6			0			0
Yen-denominated		35			4			35			4			0			0
Banks/financial institutions:
U.S. dollar-denominated		103			6			65			1			38			5
Yen-denominated		2,859			180			1,853			102			1,006			78
Other corporate:
U.S. dollar-denominated		4,574			296			2,200			76			2,374			220
Yen-denominated		1,095			86			911			81			184			5
Total		$	11,432		$	638		$	7,684		$	323		$	3,748		$	315

	December 31, 2019
	Total						Less than 12 months						12 months or longer
(In millions)	Fair Value			Unrealized Losses			Fair Value			Unrealized Losses			Fair Value			Unrealized Losses
Fixed maturity securities:
Municipalities:
Yen-denominated		$	80		$	3		$	80		$	3		$	0		$	0
Public utilities:
U.S. dollar-denominated		306			10			69			2			237			8
Banks/financial institutions:
U.S. dollar-denominated		79			4			18			0			61			4
Yen-denominated		1,828			89			1,828			89			0			0
Other corporate:
U.S. dollar-denominated		4,261			248			792			53			3,469			195
Yen-denominated		636			31			636			31			0			0
Total		$	7,190		$	385		$	3,423		$	178		$	3,767		$	207

Composition of the Carrying Value for Commercial Mortgage and Other Loans by Property Type

The following table reflects the composition of the carrying value for commercial mortgage and other loans by property type as of the periods presented.

(In millions)	September 30, 2020				December 31, 2019
	Amortized Cost		% of Total		Amortized Cost			% of Total
Commercial Mortgage and other loans:
Transitional real estate loans:
Office	$	2,146	19.5	%	$	1,800		18.7	%
Retail	179		1.6		131			1.4
Apartments/Multi-Family	2,000		18.2		2,085			21.7
Industrial	145		1.3		256			2.7
Hospitality	1,093		10.0		1,036			10.8
Other	81		0.7		164			1.7
Total transitional real estate loans	5,644		51.3		5,472			57.0
Commercial mortgage loans:
Office	403		3.7		410			4.3
Retail	342		3.1		348			3.5
Apartments/Multi-Family	594		5.4		569			5.9
Industrial	393		3.6		383			4.0
Total commercial mortgage loans	1,732		15.8		1,710			17.7
Middle market loans	3,611		32.9		2,432			25.3
Total commercial mortgage and other loans	$	10,987	100.0	%	$	9,614		100.0	%
Allowance for credit losses	(165)				(45)		(1)
Total net commercial mortgage and other loans	$	10,822			$	9,569

(1) U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only.

Allowance for Loan Losses by Portfolio Segment

The following table presents the roll forward of the allowance for credit losses by portfolio segment during the nine-month period ended September 30, 2020.

(in millions)	Transitional Real Estate Loans		Commercial Mortgage Loans		Middle Market Loans		Held to Maturity Securities		Available for Sale Securities		Reinsurance Recoverables
Balance at December 31, 2019 (1)	$	(22)	$	(3)	$	(20)	$	0	$	0	$	0
Transition impact to retained earnings	(2)		(8)		(33)		(10)		0		(11)
(Addition to) release of allowance for credit losses	(29)		(17)		(31)		1		(75)		0
Write-offs, net of recoveries	0		0		0		0		37		0
Balance at September 30, 2020	$	(53)	$	(28)	$	(84)	$	(9)	$	(38)	$	(11)

(1) U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only.

Other Investments

The table below reflects the composition of the carrying value for other investments as of the periods presented.

(In millions)	September 30, 2020			December 31, 2019
Other investments:
Policy loans		$	261		$	250
Short-term investments (1)		823			628
Limited partnerships		795			569
Other		25			30
Total other investments		$	1,904		$	1,477

(1) Includes securities lending collateral

Securities Lending Transactions Accounted for as Secured Borrowings

Details of collateral by loaned security type and remaining maturity of the agreements were as follows:

Securities Lending Transactions Accounted for as Secured Borrowings
Remaining Contractual Maturity of the Agreements
	September 30, 2020						December 31, 2019
(In millions)	Overnight and Continuous(1)		Up to 30 days		Total		Overnight and Continuous(1)		Up to 30 days		Total
Securities lending transactions:
Fixed maturity securities:
Japan government and agencies	$	0	$	534	$	534	$	0	$	1,013	$	1,013
Public utilities	61		0		61		35		0		35
Sovereign and supranational	2		0		2		2		0		2
Banks/financial institutions	85		0		85		48		0		48
Other corporate	813		0		813		778		0		778
Total borrowings	$	961	$	534	$	1,495	$	863	$	1,013	$	1,876
Gross amount of recognized liabilities for securities lending transactions					$	1,495					$	1,876

(1) The related loaned security, under the Company's U.S. securities lending program, can be returned to the Company at the transferee's discretion; therefore, they are classified as Overnight and Continuous.

Variable Interest Entity, Consolidated

Investments in Variable Interest Entities

VIEs - Consolidated

The following table presents the cost or amortized cost, fair value and balance sheet caption in which the assets and liabilities of consolidated VIEs are reported.

Investments in Consolidated Variable Interest Entities

	September 30, 2020						December 31, 2019
(In millions)	Amortized Cost (1)			Fair Value			Amortized Cost			Fair Value
Assets:
Fixed maturity securities, available for sale		$	3,279		$	4,284		$	3,308		$	4,312
Commercial mortgage and other loans		9,245			9,201			7,956			8,015
Other investments (2)		658			658			494			494
Other assets (3)		97			97			169			169
Total assets of consolidated VIEs		$	13,279		$	14,240		$	11,927		$	12,990
Liabilities:
Other liabilities (3)		$	240		$	240		$	126		$	126
Total liabilities of consolidated VIEs		$	240		$	240		$	126		$	126

(1) Net of allowance for credit losses

(2) Consists entirely of alternative investments in limited partnerships

(3) Consists entirely of derivatives

Variable Interest Entity, Not Consolidated

Investments in Variable Interest Entities

VIEs - Not Consolidated

The table below reflects the amortized cost, fair value and balance sheet caption in which the Company's investment in VIEs not consolidated are reported.

Investments in Variable Interest Entities Not Consolidated

	September 30, 2020						December 31, 2019
(In millions)	Amortized Cost			Fair Value			Amortized Cost			Fair Value
Assets:
Fixed maturity securities, available for sale		$	5,800		$	6,985		$	4,129		$	4,884
Fixed maturity securities, held to maturity		0			0			1,848			2,236
Other investments (1)		137			137			75			74
Total investments in VIEs not consolidated		$	5,937		$	7,122		$	6,052		$	7,194

(1) Consists entirely of alternative investments in limited partnerships

Transitional real estate loans

Financing Receivable Credit Quality Indicators

Transitional Real Estate Loans
(In millions)	2020		2019		2018		2017		2016		Prior		Total
Loan-to-Value Ratio:
0%-59.99%	$	48	$	529	$	382	$	158	$	20	$	57	$	1,194
60%-69.99%	324		811		825		440		0		0		2,400
70%-79.99%	132		767		851		224		14		0		1,988
80% or greater	26		36		0		0		0		0		62
Total	$	530	$	2,143	$	2,058	$	822	$	34	$	57	$	5,644

Commercial mortgage loans

Financing Receivable Credit Quality Indicators

Commercial Mortgage Loans
(In millions)	2020		2019		2018		2017		2016		Prior		Total		Weighted-Average DSCR
Loan-to-Value Ratio:
0%-59.99%	$	32	$	402	$	101	$	69	$	553	$	0	$	1,157	2.63
60%-69.99%	16		224		70		0		184		0		494		1.93
70%-79.99%	0		33		0		0		22		0		55		1.79
80% or greater	0		0		0		0		26		0		26		1.66
Total	48		659		171		69		785		0		1,732		2.39
Weighted Average DSCR	1.98		2.53		2.23		2.56		2.32		0.00		2.39

Middle market loans

Financing Receivable Credit Quality Indicators

Middle Market Loans
(In millions)	2020		2019		2018		2017		2016		Prior		Revolving Loans		Total
Credit Ratings:
BBB	$	25	$	117	$	62	$	56	$	5	$	0	$	16	$	281
BB	201		235		237		84		37		15		86		895
B	267		740		315		235		119		24		185		1,885
CCC	15		98		121		96		37		31		90		488
CC and lower	0		0		19		39		3		0		1		62
Total	$	508	$	1,190	$	754	$	510	$	201	$	70	$	378	$	3,611

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DERIVATIVE INSTRUMENTS (Tables)

9 Months Ended

Sep. 30, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

		September 30, 2020									December 31, 2019
(In millions)				Asset Derivatives			Liability Derivatives						Asset Derivatives			Liability Derivatives
Hedge Designation/ Derivative Type	Notional Amount			Fair Value			Fair Value			Notional Amount			Fair Value			Fair Value
Cash flow hedges:
Foreign currency swaps - VIE		$	18		$	0		$	1		$	75		$	0		$	8
Total cash flow hedges		18			0			1			75			0			8
Fair value hedges:
Foreign currency forwards		64			1			0			964			0			38
Foreign currency options		8,869			0			1			11,573			0			5
Interest rate swaptions		0			0			0			243			0			0
Total fair value hedges		8,933			1			1			12,780			0			43
Net investment hedge:
Foreign currency forwards		5,037			45			26			4,952			72			2
Foreign currency options		2,083			1			0			2,000			0			0
Total net investment hedge		7,120			46			26			6,952			72			2
Non-qualifying strategies:
Foreign currency swaps		2,250			53			49			2,800			72			78
Foreign currency swaps - VIE		2,743			97			239			2,587			169			118
Foreign currency forwards		25,319			236			309			19,821			166			337
Foreign currency options		9,071			0			0			9,553			0			0
Interest rate swaps		2,000			6			0			7,120			3			0
Interest rate swaptions		0			0			0			7			0			0
Total non-qualifying strategies		41,383			392			597			41,888			410			533
Total derivatives		$	57,454		$	439		$	625		$	61,695		$	482		$	586

Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location

The following table presents the gains and losses on derivatives and the related hedged items in fair value hedges.

Fair Value Hedging Relationships

(In millions)		Hedging Derivatives						Hedged Items
Hedging Derivatives	Hedged Items	Total Gains (Losses)		Gains (Losses) Excluded from Effectiveness Testing(1)		Gains (Losses) Included in Effectiveness Testing(2)		Gains (Losses)(2)		Net Investment Gains (Losses) Recognized for Fair Value Hedge
Three Months Ended September 30, 2020:
Foreign currency forwards	Fixed maturity securities	$	1	$	0	$	1	$	(1)	$	0
Foreign currency options	Fixed maturity securities	(2)		(2)		0		0		0
Total gains (losses)		$	(1)	$	(2)	$	1	$	(1)	$	0
Nine Months Ended September 30, 2020:
Foreign currency forwards	Fixed maturity securities	$	(15)	$	(8)	$	(7)	$	8	$	1
Foreign currency options	Fixed maturity securities	(4)		(3)		(1)		1		0
Total gains (losses)		$	(19)	$	(11)	$	(8)	$	9	$	1
Three Months Ended September 30, 2019:
Foreign currency forwards	Fixed maturity securities	$	(19)	$	(24)	$	5	$	(4)	$	1
Foreign currency options	Fixed maturity securities	(5)		(5)		0		0		0
Interest rate swaptions	Fixed maturity securities	(6)		(6)		0		0		0
Total gains (losses)		(30)		(35)		5		(4)		1
Nine Months Ended September 30, 2019:
Foreign currency forwards	Fixed maturity securities	$	(4)	$	(48)	$	44	$	(43)	$	1
Foreign currency options	Fixed maturity securities	(9)		(9)		0		0		0
Interest rate swaptions	Fixed maturity securities	(9)		(9)		0		0		0
Total gains (losses)		$	(22)	$	(66)	$	44	$	(43)	$	1

(1) Gains (losses) excluded from effectiveness testing includes the forward point on foreign currency forwards and time value change on foreign currency options which are reported in the consolidated statement of earnings as net investment gains (losses). It also includes the change in the fair value of the interest rate swaptions related to the time value of the swaptions which is recognized as a component of other comprehensive income (loss).

(2) Gains and losses on foreign currency forwards and options and related hedged items are reported in the consolidated statement of earnings as net investment gains (losses). For interest rate swaptions and related hedged items, gains and losses included in the hedge assessment, premium amortization and time value amortization while the hedge items are still outstanding are reported within net investment income. The time value gains and losses for interest rate swaptions when the related hedged items are redeemed are reported in net investment gains and losses consistent with the impact of the hedged item. For the three-month and nine-month periods ended September 30, 2020 and 2019, gains and losses included in the hedge assessment on interest rate swaptions and related hedged items were immaterial.

Schedule of Interest Rate Fair Value Hedges Hedged Items

The following table shows the carrying amounts of assets designated and qualifying as hedged items in fair value hedges of interest rate risk and the related cumulative hedge adjustment included in the carrying amount.

(In millions)	Carrying Amount of the Hedged Assets/(Liabilities)(1)					Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of Hedged Assets/(Liabilities)
		September 30, 2020		December 31, 2019		September 30, 2020		December 31, 2019
Fixed maturity securities		$	4,368	$	4,633	$	241	$	256

(1) The balance includes hedging adjustment on discontinued hedging relationships of $241 in 2020 and $256 in 2019.

The total notional amount of the Company's interest rate swaptions was $0 in 2020 and $243 in 2019. The hedging adjustment related to these derivatives was immaterial.

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance

The following table summarizes the impact to net investment gains (losses) and other comprehensive income (loss) from all derivatives and hedging instruments.

	Three Months Ended September 30,
	2020										2019
(In millions)	Net Investment Income (1)			Net Investment Gains (Losses)				Other Comprehensive Income (Loss)(2)			Net Investment Income (1)			Net Investment Gains (Losses)				Other Comprehensive Income (Loss)(2)
Qualifying hedges:
Cash flow hedges:
Foreign currency swaps - VIE		$	0		$	0			$	2		$	(1)		$	(1)			$	(2)
Total cash flow hedges		0			0		(3)		2			(1)			(1)		(3)		(2)
Fair value hedges:
Foreign currency forwards (3)					0										(23)
Foreign currency options (3)					(2)										(5)
Interest rate swaptions (3)		0			0				0			0			0				(6)
Total fair value hedges		0			(2)				0			0			(28)				(6)
Net investment hedge:
Non-derivative hedging instruments					0				(51)						0				2
Foreign currency forwards					(16)				(91)						20				19
Foreign currency options					(2)				0						(3)				0
Total net investment hedge					(18)				(142)						17				21
Non-qualifying strategies:
Foreign currency swaps					(27)										27
Foreign currency swaps - VIE					40										(93)
Foreign currency forwards					139										(70)
Foreign currency options					4										0
Interest rate swaps					0										2
Forward bond purchase commitment- VIE					2										0
Total non- qualifying strategies					158										(134)
Total		$	0		$	138			$	(140)		$	(1)		$	(146)			$	13

(1) Cash flow hedge items and the change in the fair value of interest rate swaptions related to the time value of the swaptions in fair value hedges are recorded as unrealized gains (losses) on derivatives and net investment hedge items are recorded in the unrealized foreign currency translation gains (losses) line in the consolidated statement of comprehensive income (loss).

(2) Impact of cash flow hedges reported as net investment gains (losses) includes an immaterial amount of gains or losses reclassified from accumulated other comprehensive income (loss) into earnings. It also includes an immaterial amount excluded from effectiveness testing during the three-month periods ended September 30, 2020 and 2019. In addition, an immaterial amount of income (loss) was reclassified from accumulated other comprehensive income (loss) into earnings during the three-month periods ended September 30, 2020 and 2019, related to fair value hedges excluded component.

(3)Impact shown net of effect of hedged items (see Fair Value Hedges section of this Note 4 for further detail)

	Nine Months Ended September 30,
	2020										2019
(In millions)	Net Investment Income(1)			Net Investment Gains (Losses)				Other Comprehensive Income (Loss)(2)			Net Investment Income(1)			Net Investment Gains (Losses)				Other Comprehensive Income (Loss)(2)
Qualifying hedges:
Cash flow hedges:
Foreign currency swaps - VIE		$	(1)		$	0			$	(4)		$	(2)		$	(1)			$	(4)
Total cash flow hedges		(1)			0		(3)		(4)			(2)			(1)		(3)		(4)
Fair value hedges:
Foreign currency forwards(3)					(7)										(47)
Foreign currency options(3)					(3)										(9)
Interest rate swaptions(3)		(1)			0				1			(1)			0				(8)
Total fair value hedges		(1)			(10)				1			(1)			(56)				(8)
Net investment hedge:
Non-derivative hedging instruments					0				(72)						0				(52)
Foreign currency forwards					136				(166)						20				19
Foreign currency options					(3)				0						(3)				0
Total net investment hedge					133				(238)						17				(33)
Non-qualifying strategies:
Foreign currency swaps					54										71
Foreign currency swaps - VIE					(185)										(96)
Foreign currency forwards					133										23
Foreign currency options					(1)										0
Interest rate swaps					49										18
Total non-qualifying strategies					50										16
Total		$	(2)		$	173			$	(241)		$	(3)		$	(24)			$	(45)

(1) Cash flow hedge items and the change in the fair value of interest rate swaptions related to the time value of the swaptions in fair value hedges are recorded as unrealized gains (losses) on derivatives and net investment hedge items are recorded in the unrealized foreign currency translation gains (losses) line in the consolidated statement of comprehensive income (loss).

(2) Impact of cash flow hedges reported as net investment gains (losses) includes an immaterial amount of gains or losses reclassified from accumulated other comprehensive income (loss) into earnings. It also includes an immaterial amount excluded from effectiveness testing during the nine-month periods ended September 30, 2020 and 2019, respectively. In addition, an immaterial amount of income (loss) was reclassified from accumulated other comprehensive income (loss) into earnings during the nine-month periods ended September 30, 2020 and 2019, respectively, related to fair value hedges excluded component.

(3)Impact shown net of effect of hedged items (see Fair Value Hedges section of this Note 4 for further detail)

Offsetting Assets

Offsetting of Financial Assets and Derivative Assets

September 30, 2020
										Gross Amounts Not Offset in Balance Sheet
(In millions)	Gross Amount of Recognized Assets			Gross Amount Offset in Balance Sheet			Net Amount of Assets Presented in Balance Sheet			Financial Instruments			Securities Collateral		Cash Collateral Received			Net Amount
Derivative assets:
Derivative       assets subject to a       master netting       agreement or       offsetting       arrangement
OTC - bilateral		$	336		$	0		$	336		$	(238)	$	(6)		$	(92)		$	0
OTC - cleared		6			0			6			0		0			(5)			1
Total derivative assets subject to a master netting agreement or offsetting arrangement		342			0			342			(238)		(6)			(97)			1
Derivative       assets not subject       to a master netting       agreement or       offsetting       arrangement
OTC - bilateral		97						97											97
Total derivative assets not subject to a master netting agreement or offsetting arrangement		97						97											97
Total derivative assets		439			0			439			(238)		(6)			(97)			98
Securities lending and similar arrangements		1,471			0			1,471			0		0			(1,471)			0
Total		$	1,910		$	0		$	1,910		$	(238)	$	(6)		$	(1,568)		$	98

December 31, 2019
										Gross Amounts Not Offset in Balance Sheet
(In millions)	Gross Amount of Recognized Assets			Gross Amount Offset in Balance Sheet			Net Amount of Assets Presented in Balance Sheet			Financial Instruments			Securities Collateral		Cash Collateral Received			Net Amount
Derivative assets:
Derivative       assets subject to a       master netting       agreement or       offsetting       arrangement
OTC - bilateral		$	310		$	0		$	310		$	(190)	$	(7)		$	(113)		$	0
OTC - cleared		3			0			3			0		0			0			3
Total derivative assets subject to a master netting agreement or offsetting arrangement		313			0			313			(190)		(7)			(113)			3
Derivative       assets not subject       to a master netting       agreement or       offsetting       arrangement
OTC - bilateral		169						169											169
Total derivative assets not subject to a master netting agreement or offsetting arrangement		169						169											169
Total derivative assets		482			0			482			(190)		(7)			(113)			172
Securities lending and similar arrangements		1,860			0			1,860			0		0			(1,860)			0
Total		$	2,342		$	0		$	2,342		$	(190)	$	(7)		$	(1,973)		$	172

Offsetting Liabilities

Offsetting of Financial Liabilities and Derivative Liabilities

September 30, 2020
										Gross Amounts Not Offset in Balance Sheet
(In millions)	Gross Amount of Recognized Liabilities			Gross Amount Offset in Balance Sheet			Net Amount of Liabilities Presented in Balance Sheet			Financial Instruments			Securities Collateral		Cash Collateral Pledged			Net Amount
Derivative liabilities:
Derivative       liabilities subject       to a master netting       agreement or       offsetting       arrangement
OTC - bilateral		$	385		$	0		$	385		$	(238)	$	(89)		$	(21)		$	37
Total derivative liabilities subject to a master netting agreement or offsetting arrangement		385			0			385			(238)		(89)			(21)			37
Derivative       liabilities not       subject to a       master netting       agreement or       offsetting       arrangement
OTC - bilateral		240						240											240
Total derivative liabilities not subject to a master netting agreement or offsetting arrangement		240						240											240
Total derivative liabilities		625			0			625			(238)		(89)			(21)			277
Securities lending and similar arrangements		1,495			0			1,495			(1,471)		0			0			24
Total		$	2,120		$	0		$	2,120		$	(1,709)	$	(89)		$	(21)		$	301

December 31, 2019
										Gross Amounts Not Offset in Balance Sheet
(In millions)	Gross Amount of Recognized Liabilities			Gross Amount Offset in Balance Sheet			Net Amount of Liabilities Presented in Balance Sheet			Financial Instruments			Securities Collateral		Cash Collateral Pledged			Net Amount
Derivative liabilities:
Derivative       liabilities subject       to a master netting       agreement or       offsetting       arrangement
OTC - bilateral		$	459		$	0		$	459		$	(190)	$	(222)		$	(32)		$	15
OTC - cleared		1			0			1			0		0			(1)			0
Total derivative liabilities subject to a master netting agreement or offsetting arrangement		460			0			460			(190)		(222)			(33)			15
Derivative       liabilities not       subject to a       master netting       agreement or       offsetting       arrangement
OTC - bilateral		126						126											126
Total derivative liabilities not subject to a master netting agreement or offsetting arrangement		126						126											126
Total derivative liabilities		586			0			586			(190)		(222)			(33)			141
Securities lending and similar arrangements		1,876			0			1,876			(1,860)		0			0			16
Total		$	2,462		$	0		$	2,462		$	(2,050)	$	(222)		$	(33)		$	157

XML

FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Fair Value Hierarchy, Assets and Liabilities Measured on Recurring Basis

The following tables present the fair value hierarchy levels of the Company's assets and liabilities that are measured and carried at fair value on a recurring basis.

	September 30, 2020
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Assets:
Securities available for sale, carried at fair value:
Fixed maturity securities:
Government and agencies		$	35,539		$	1,656		$	0		$	37,195
Municipalities		0			2,619			0			2,619
Mortgage- and asset-backed securities		0			526			191			717
Public utilities		0			10,030			368			10,398
Sovereign and supranational		0			1,422			0			1,422
Banks/financial institutions		0			11,672			24			11,696
Other corporate		0			38,813			268			39,081
Total fixed maturity securities		35,539			66,738			851			103,128
Equity securities		608			81			86			775
Other investments		823			0			0			823
Cash and cash equivalents		5,563			0			0			5,563
Other assets:
Foreign currency swaps		0			53			97			150
Foreign currency forwards		0			282			0			282
Foreign currency options		0			1			0			1
Interest rate swaps		0			6			0			6
Total other assets		0			342			97			439
Total assets		$	42,533		$	67,161		$	1,034		$	110,728
Liabilities:
Other liabilities:
Foreign currency swaps		$	0		$	49		$	240		$	289
Foreign currency forwards		0			335			0			335
Foreign currency options		0			1			0			1
Total liabilities		$	0		$	385		$	240		$	625

	December 31, 2019
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Assets:
Securities available for sale, carried at fair value:
Fixed maturity securities:
Government and agencies		$	34,878		$	1,522		$	0		$	36,400
Municipalities		0			1,847			0			1,847
Mortgage- and asset-backed securities		0			232			178			410
Public utilities		0			6,556			224			6,780
Sovereign and supranational		0			1,042			0			1,042
Banks/financial institutions		0			10,264			23			10,287
Other corporate		0			34,234			262			34,496
Total fixed maturity securities		34,878			55,697			687			91,262
Equity securities		642			80			80			802
Other investments		628			0			0			628
Cash and cash equivalents		4,896			0			0			4,896
Other assets:
Foreign currency swaps		0			72			169			241
Foreign currency forwards		0			238			0			238
Interest rate swaps		0			3			0			3
Total other assets		0			313			169			482
Total assets		$	41,044		$	56,090		$	936		$	98,070
Liabilities:
Other liabilities:
Foreign currency swaps		$	0		$	78		$	126		$	204
Foreign currency forwards		0			377			0			377
Foreign currency options		0			5			0			5
Total liabilities		$	0		$	460		$	126		$	586

Fair Value Hierarchy Levels of Assets and Liabilities Carried at Cost or Amortized Cost

The following tables present the carrying amount and fair value categorized by fair value hierarchy level for the Company's financial instruments that are not carried at fair value.

	September 30, 2020
(In millions)	Carrying Value			Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Assets:
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Government and agencies		$	22,938		$	28,248		$	254		$	0		$	28,502
Municipalities		370			0			490			0			490
Public utilities		46			0			60			0			60
Sovereign and supranational		559			0			723			0			723
Other corporate		24			0			32			0			32
Commercial mortgage and other loans		10,822			0			0			10,786			10,786
Other investments (1)		25			0			25			0			25
Total assets		$	34,784		$	28,248		$	1,584		$	10,786		$	40,618
Liabilities:
Other policyholders’ funds		$	7,642		$	0		$	0		$	7,550		$	7,550
Notes payable (excluding leases)		7,675			0			8,264			282			8,546
Total liabilities		$	15,317		$	0		$	8,264		$	7,832		$	16,096

(1) Excludes policy loans of $261 and equity method investments of $795, at carrying value

	December 31, 2019
(In millions)	Carrying Value			Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Assets:
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Government and agencies		$	22,241		$	27,937		$	354		$	0		$	28,291
Municipalities		821			0			1,083			0			1,083
Mortgage and asset-backed securities		16			0			7			10			17
Public utilities		2,535			0			2,954			0			2,954
Sovereign and supranational		1,123			0			1,320			0			1,320
Banks/financial institutions		916			0			1,018			0			1,018
Other corporate		2,433			0			2,911			0			2,911
Commercial mortgage and other loans		9,569			0			0			9,648			9,648
Other investments (1)		30			0			30			0			30
Total assets		$	39,684		$	27,937		$	9,677		$	9,658		$	47,272
Liabilities:
Other policyholders’ funds		$	7,317		$	0		$	0		$	7,234		$	7,234
Notes payable (excluding leases)		6,408			0			6,663			272			6,935
Total liabilities		$	13,725		$	0		$	6,663		$	7,506		$	14,169

(1) Excludes policy loans of $250 and equity method investments of $569, at carrying value

Fair Value Assets Securities Carried At Fair Value Primary Pricing Sources

The following tables present the pricing sources for the fair values of the Company's fixed maturity and equity securities.

	September 30, 2020
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Securities available for sale, carried at fair value:
Fixed maturity securities:
Government and agencies:
Third party pricing vendor		$	35,539		$	1,656		$	0		$	37,195
Total government and agencies		35,539			1,656			0			37,195
Municipalities:
Third party pricing vendor		0			2,619			0			2,619
Total municipalities		0			2,619			0			2,619
Mortgage- and asset-backed securities:
Third party pricing vendor		0			361			0			361
Broker/other		0			165			191			356
Total mortgage- and asset-backed securities		0			526			191			717
Public utilities:
Third party pricing vendor		0			10,030			0			10,030
Broker/other		0			0			368			368
Total public utilities		0			10,030			368			10,398
Sovereign and supranational:
Third party pricing vendor		0			1,422			0			1,422
Total sovereign and supranational		0			1,422			0			1,422
Banks/financial institutions:
Third party pricing vendor		0			11,672			0			11,672
Broker/other		0			0			24			24
Total banks/financial institutions		0			11,672			24			11,696
Other corporate:
Third party pricing vendor		0			38,809			0			38,809
Broker/other		0			4			268			272
Total other corporate		0			38,813			268			39,081
Total securities available for sale		$	35,539		$	66,738		$	851		$	103,128
Equity securities, carried at fair value:
Third party pricing vendor		$	608		$	81		$	0		$	689
Broker/other		0			0			86			86
Total equity securities		$	608		$	81		$	86		$	775

	December 31, 2019
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Securities available for sale, carried at fair value:
Fixed maturity securities:
Government and agencies:
Third party pricing vendor		$	34,878		$	1,522		$	0		$	36,400
Total government and agencies		34,878			1,522			0			36,400
Municipalities:
Third party pricing vendor		0			1,847			0			1,847
Total municipalities		0			1,847			0			1,847
Mortgage- and asset-backed securities:
Third party pricing vendor		0			232			0			232
Broker/other		0			0			178			178
Total mortgage- and asset-backed securities		0			232			178			410
Public utilities:
Third party pricing vendor		0			6,556			0			6,556
Broker/other		0			0			224			224
Total public utilities		0			6,556			224			6,780
Sovereign and supranational:
Third party pricing vendor		0			1,042			0			1,042
Total sovereign and supranational		0			1,042			0			1,042
Banks/financial institutions:
Third party pricing vendor		0			10,264			0			10,264
Broker/other		0			0			23			23
Total banks/financial institutions		0			10,264			23			10,287
Other corporate:
Third party pricing vendor		0			34,234			0			34,234
Broker/other		0			0			262			262
Total other corporate		0			34,234			262			34,496
Total securities available for sale		$	34,878		$	55,697		$	687		$	91,262
Equity securities, carried at fair value:
Third party pricing vendor		$	642		$	80		$	0		$	722
Broker/other		0			0			80			80
Total equity securities		$	642		$	80		$	80		$	802

Fair Value Assets Held-To-Maturity Securities Primary Pricing Sources

	September 30, 2020
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Government and agencies:
Third party pricing vendor		$	28,248		$	254		$	0		$	28,502
Total government and agencies		28,248			254			0			28,502
Municipalities:
Third party pricing vendor		0			490			0			490
Total municipalities		0			490			0			490
Public utilities:
Third party pricing vendor		0			60			0			60
Total public utilities		0			60			0			60
Sovereign and supranational:
Third party pricing vendor		0			723			0			723
Total sovereign and supranational		0			723			0			723
Other corporate:
Third party pricing vendor		0			32			0			32
Total other corporate		0			32			0			32
Total securities held to maturity		$	28,248		$	1,559		$	0		$	29,807

	December 31, 2019
(In millions)	Quoted Prices in Active Markets for Identical Assets (Level 1)			Significant Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)			Total Fair Value
Securities held to maturity, carried at amortized cost:
Fixed maturity securities:
Government and agencies:
Third party pricing vendor		$	27,937		$	354		$	0		$	28,291
Total government and agencies		27,937			354			0			28,291
Municipalities:
Third party pricing vendor		0			1,083			0			1,083
Total municipalities		0			1,083			0			1,083
Mortgage- and asset-backed securities:
Third party pricing vendor		0			7			0			7
Broker/other		0			0			10			10
Total mortgage- and asset-backed securities		0			7			10			17
Public utilities:
Third party pricing vendor		0			2,954			0			2,954
Total public utilities		0			2,954			0			2,954
Sovereign and supranational:
Third party pricing vendor		0			1,320			0			1,320
Total sovereign and supranational		0			1,320			0			1,320
Banks/financial institutions:
Third party pricing vendor		0			1,018			0			1,018
Total banks/financial institutions		0			1,018			0			1,018
Other corporate:
Third party pricing vendor		0			2,911			0			2,911
Total other corporate		0			2,911			0			2,911
Total securities held to maturity		$	27,937		$	9,647		$	10		$	37,594

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

The following tables present the changes in fair value of the Company's investments and derivatives carried at fair value classified as Level 3.

Three Months Ended September 30, 2020
	Fixed Maturity Securities								Equity Securities		Derivatives (1)
(In millions)	Mortgage- and Asset- Backed Securities		Public Utilities		Banks/ Financial Institutions		Other Corporate				Foreign Currency Swaps		Total
Balance, beginning of period	$	188	$	322	$	24	$	243	$	86	$	(168)	$	695
Net investment gains (losses) included in earnings	0		0		0		0		0		23		23
Unrealized gains (losses) included in other comprehensive income (loss)	3		15		0		24		0		2		44
Purchases, issuances, sales and settlements:
Purchases	0		33		0		1		5		0		39
Issuances	0		0		0		0		0		0		0
Sales	0		0		0		0		(5)		0		(5)
Settlements	0		(2)		0		0		0		0		(2)
Transfers into Level 3	0		0		0		0		0		0		0
Transfers out of Level 3	0		0		0		0		0		0		0
Balance, end of period	$	191	$	368	$	24	$	268	$	86	$	(143)	$	794
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities still held at the end of the period included in earnings	$	0	$	0	$	0	$	0	$	0	$	23	$	23

(1) Derivative assets and liabilities are presented net

Three Months Ended September 30, 2019
	Fixed Maturity Securities										Equity Securities		Derivatives (1)
(In millions)	Mortgage- and Asset- Backed Securities		Public Utilities		Banks/ Financial Institutions			Other Corporate						Foreign Currency Swaps		Total
Balance, beginning of period	$	183	$	204	$	24		$	199		$	65		$	94	$	769
Net investment gains (losses) included in earnings	0		0		0			0			0			(84)		(84)
Unrealized gains (losses) included in other comprehensive income (loss)	0		4		0			5			0			(2)		7
Purchases, issuances, sales and settlements:
Purchases	0		0		0			19			14			0		33
Issuances	0		0		0			0			0			0		0
Sales	0		0		0			0			0			0		0
Settlements	0		(2)		0			0			0			0		(2)
Transfers into Level 3	0		0		0			1		(2)	0			0		1
Transfers out of Level 3	0		0		(1)		(2)	0			0			0		(1)
Balance, end of period	$	183	$	206	$	23		$	224		$	79		$	8	$	723
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities still held at the end of the period included in earnings	$	0	$	0	$	0		$	0		$	0		$	(84)	$	(84)

(1) Derivative assets and liabilities are presented net

(2) Transfer due to sector classification change

Nine Months Ended September 30, 2020
	Fixed Maturity Securities											Equity Securities		Derivatives (1)
(In millions)	Mortgage- and Asset- Backed Securities			Public Utilities			Banks/ Financial Institutions		Other Corporate					Foreign Currency Swaps		Total
Balance, beginning of period	$	178		$	224		$	23	$	262		$	80	$	43	$	810
Net investment gains (losses) included in earnings	0			0			0		0			0		(184)		(184)
Unrealized gains (losses) included in other comprehensive income (loss)	5			6			0		8			0		(2)		17
Purchases, issuances, sales and settlements:
Purchases	0			129			1		13			12		0		155
Issuances	0			0			0		0			0		0		0
Sales	0			0			0		0			(6)		0		(6)
Settlements	(1)			(6)			0		0			0		0		(7)
Transfers into Level 3	9		(2)	15		(3)	0		0			0		0		24
Transfers out of Level 3	0			0			0		(15)		(3)	0		0		(15)
Balance, end of period	$	191		$	368		$	24	$	268		$	86	$	(143)	$	794
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities still held at the end of the period included in earnings	$	0		$	0		$	0	$	0		$	0	$	(184)	$	(184)

(1) Derivative assets and liabilities are presented net

(2) Transfer due to reclassification of level 3 securities from HTM to AFS

(3) Transfer due to sector classification change

Nine Months Ended September 30, 2019
	Fixed Maturity Securities										Equity Securities		Derivatives (1)
(In millions)	Mortgage- and Asset- Backed Securities		Public Utilities			Banks/ Financial Institutions		Other Corporate					Foreign Currency Swaps		Total
Balance, beginning of period	$	177	$	109		$	23	$	213		$	46	$	80	$	648
Net investment gains (losses) included in earnings	0		0			0		0			0		(68)		(68)
Unrealized gains (losses) included in other comprehensive income (loss)	6		10			1		12			0		(4)		25
Purchases, issuances, sales and settlements:
Purchases	0		0			0		107			33		0		140
Issuances	0		0			0		0			0		0		0
Sales	0		0			0		(2)			0		0		(2)
Settlements	0		(4)			0		0			0		0		(4)
Transfers into Level 3	0		116		(2)	0		26		(2)	0		0		142
Transfers out of Level 3	0		(25)		(2)	(1)		(132)		(2),(3)	0		0		(158)
Balance, end of period	$	183	$	206		$	23	$	224		$	79	$	8	$	723
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities still held at the end of the period included in earnings	$	0	$	0		$	0	$	0		$	0	$	(68)	$	(68)

(1) Derivative assets and liabilities are presented net

(2) Transfer due to sector classification change

(3) Transfer due to availability of observable market inputs

Fair Value Measurement Inputs and Valuation Techniques

Level 3 Significant Unobservable Input Sensitivity

The following tables summarize the significant unobservable inputs used in the valuation of the Company's Level 3 investments and derivatives carried at fair value. Included in the tables are the inputs or range of possible inputs that have an effect on the overall valuation of the financial instruments.

September 30, 2020
(In millions)	Fair Value			Valuation Technique(s)	Unobservable Input	Range (Weighted Average)
Assets:
Securities available for sale, carried at fair value:
Fixed maturity securities:
Mortgage- and asset-backed securities		$	191	Consensus pricing	Offered quotes	N/A			(a)
Public utilities		368		Discounted cash flow	Credit spreads	N/A			(a)
Banks/financial institutions		24		Consensus pricing	Offered quotes	N/A			(a)
Other corporate		268		Discounted cash flow	Credit spreads	N/A			(a)
Equity securities		86		Net asset value	Offered quotes	N/A			(a)
Other assets:
Foreign currency swaps		27		Discounted cash flow	Interest rates (USD)	.71%	-	1.12%	(b)
					Interest rates (JPY)	.03%	-	.35%	(c)
					CDS spreads	23 bps	-	140 bps
		70		Discounted cash flow	Interest rates (USD)	.71%	-	1.12%	(b)
					Interest rates (JPY)	.03%	-	.35%	(c)
Total assets		$	1,034
Liabilities:
Other liabilities:
Foreign currency swaps		$	197	Discounted cash flow	Interest rates (USD)	.71%	-	1.12%	(b)
					Interest rates (JPY)	.03%	-	.35%	(c)
					CDS spreads	41 bps	-	140 bps
		43		Discounted cash flow	Interest rates (USD)	.71%	-	1.12%	(b)
					Interest rates (JPY)	.03%	-	.35%	(c)
Total liabilities		$	240

(a) N/A represents securities where the Company receives unadjusted broker quotes and for which there is no transparency into the providers' valuation techniques or unobservable inputs.

(b) Inputs derived from U.S. long-term rates to accommodate long maturity nature of the Company's swaps

(c) Inputs derived from Japan long-term rates to accommodate long maturity nature of the Company's swaps

December 31, 2019
(In millions)	Fair Value			Valuation Technique(s)	Unobservable Input	Range (Weighted Average)
Assets:
Securities available for sale, carried at fair value:
Fixed maturity securities:
Mortgage- and asset-backed securities		$	178	Consensus pricing	Offered quotes	N/A			(a)
Public utilities		224		Discounted cash flow	Credit spreads	N/A			(a)
Banks/financial institutions		23		Consensus pricing	Offered quotes	N/A			(a)
Other corporate		262		Discounted cash flow	Credit spreads	N/A			(a)
Equity securities		80		Net asset value	Offered quotes	N/A			(a)
Other assets:
Foreign currency swaps		106		Discounted cash flow	Interest rates (USD)	1.89%	-	2.09%	(b)
					Interest rates (JPY)	.12%	-	.43%	(c)
					CDS spreads	10 bps	-	100 bps
		63		Discounted cash flow	Interest rates (USD)	1.89%	-	2.09%	(b)
					Interest rates (JPY)	.12%	-	.43%	(c)
Total assets		$	936
Liabilities:
Other liabilities:
Foreign currency swaps		$	118	Discounted cash flow	Interest rates (USD)	1.89%	-	2.09%	(b)
					Interest rates (JPY)	.12%	-	.43%	(c)
					CDS spreads	13 bps	-	159 bps
		8		Discounted cash flow	Interest rates (USD)	1.89%	-	2.09%	(b)
					Interest rates (JPY)	.12%	-	.43%	(c)
Total liabilities		$	126

(a) N/A represents securities where the Company receives unadjusted broker quotes and for which there is no transparency into the providers' valuation techniques or unobservable inputs.

(b) Inputs derived from U.S. long-term rates to accommodate long maturity nature of the Company's swaps

(c) Inputs derived from Japan long-term rates to accommodate long maturity nature of the Company's swaps

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POLICY LIABILITIES (Tables)

9 Months Ended

Sep. 30, 2020

Insurance Loss Reserves [Abstract]

Schedule of Liability for Unpaid Claims Adjustment Expense

Changes in the liability for unpaid policy claims were as follows:

	Three Months Ended September 30,					Nine Months Ended September 30,
(In millions)		2020		2019			2020		2019
Unpaid supplemental health claims, beginning of period		$	4,041	$	4,024		$	3,968	$	3,952
Less reinsurance recoverables		37		31			31		28
Net balance, beginning of period		4,004		3,993			3,937		3,924
Add claims incurred during the period related to:
Current year		1,780		1,806			5,354		5,415
Prior years		(105)		(134)			(408)		(437)
Total incurred		1,675		1,672			4,946		4,978
Less claims paid during the period on claims incurred during:
Current year		1,295		1,421			2,971		3,150
Prior years		249		220			1,811		1,794
Total paid		1,544		1,641			4,782		4,944
Effect of foreign exchange rate changes on unpaid claims		42		(3)			76		63
Net balance, end of period		4,177		4,021			4,177		4,021
Add reinsurance recoverables		40		31			40		31
Unpaid supplemental health claims, end of period		4,217		4,052			4,217		4,052
Unpaid life claims, end of period		759		689			759		689
Total liability for unpaid policy claims		$	4,976	$	4,741		$	4,976	$	4,741

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REINSURANCE (Tables)

9 Months Ended

Sep. 30, 2020

Reinsurance Disclosures [Abstract]

Effects of Reinsurance

The following table reconciles direct premium income and direct benefits and claims to net amounts after the effect of reinsurance which also includes the elimination of inter-segment amounts associated with affiliated reinsurance.

	Three Months Ended September 30,						Nine Months Ended September 30,
(In millions)	2020			2019			2020			2019
Direct premium income		$	4,711		$	4,823		$	14,236		$	14,365
Ceded to other companies:
Ceded Aflac Japan closed blocks		(116)			(121)			(349)			(361)
Other		(22)			(17)			(69)			(50)
Assumed from other companies:
Retrocession activities		49			51			146			151
Other		1			0			5			4
Net premium income		$	4,623		$	4,736		$	13,969		$	14,109
Direct benefits and claims		$	3,051		$	3,106		$	9,054		$	9,185
Ceded benefits and change in reserves for future benefits:
Ceded Aflac Japan closed blocks		(103)			(111)			(314)			(331)
Eliminations		10			11			29			31
Other		(10)			(18)			(54)			(41)
Assumed from other companies:
Retrocession activities		47			49			133			144
Eliminations		(10)			(11)			(29)			(31)
Other		0			1			3			1
Benefits and claims, net		$	2,985		$	3,027		$	8,822		$	8,958

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NOTES PAYABLE AND LEASE OBLIGATIONS (Tables)

9 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

A summary of notes payable and lease obligations follows:

(In millions)	September 30, 2020			December 31, 2019
4.00% senior notes paid January 2020		$	0		$	348
3.625% senior notes due June 2023		698			698
3.625% senior notes due November 2024		747			747
3.25% senior notes due March 2025		447			448
2.875% senior notes due October 2026		298			298
3.60% senior notes due April 2030		990			0
6.90% senior notes due December 2039		221			220
6.45% senior notes due August 2040		254			254
4.00% senior notes due October 2046		394			394
4.750% senior notes due January 2049		541			541
Yen-denominated senior notes and subordinated debentures:
.300% senior notes due September 2025 (principal amount ¥12.4 billion)		117			0
.932% senior notes due January 2027 (principal amount ¥60.0 billion)		565			545
.500% senior notes due December 2029 (principal amount ¥12.6 billion)		119			114
.550% senior notes due March 2030 (principal ¥13.3 billion)		125			0
1.159% senior notes due October 2030 (principal amount ¥29.3 billion)		275			266
.843% senior notes due December 2031 (principal amount ¥9.3 billion)		87			84
.750% senior notes due March 2032 (principal amount ¥20.7 billion)		194			0
1.488% senior notes due October 2033 (principal amount ¥15.2 billion)		143			138
.934% senior notes due December 2034 (principal amount ¥9.8 billion)		92			88
.830% senior notes due March 2035 (principal amount ¥10.6 billion)		99			0
1.750% senior notes due October 2038 (principal amount ¥8.9 billion)		83			81
1.122% senior notes due December 2039 (principal amount ¥6.3 billion)		59			57
2.108% subordinated debentures due October 2047 (principal amount ¥60.0 billion)		563			543
.963% subordinated bonds due April 2049 (principal amount ¥30.0 billion)		282			272
Yen-denominated loans:
Variable interest rate loan due September 2026 (.42% in 2020 and .32% in 2019, principal amount ¥5.0 billion)		47			45
Variable interest rate loan due September 2029 (.57% in 2020 and .47% in 2019, principal amount ¥25.0 billion)		235			227
Finance lease obligations payable through 2027		11			12
Operating lease obligations payable through 2049		139			149
Total notes payable and lease obligations		$	7,825		$	6,569

Amounts in the table above are reported net of debt issuance costs and issuance premiums or discounts, if applicable, that are being amortized over the life of the notes.

Schedule of Line of Credit Facilities

A summary of the Company's lines of credit as of September 30, 2020 follows:

Borrower(s)	Type	Term	Expiration Date	Capacity	Amount Outstanding	Interest Rate on Borrowed Amount	Maturity Period	Commitment Fee	Business Purpose
Aflac Incorporated and Aflac	uncommitted bilateral	364 days	December 18, 2020	$100 million	$0 million	The rate quoted by the bank and agreed upon at the time of borrowing	Up to 3 months	None	General corporate purposes
Aflac Incorporated	unsecured revolving	5 years	March 29, 2024, or the date commitments are terminated pursuant to an event of default	¥100.0 billion	¥0.0 billion	A rate per annum equal to (a) Tokyo interbank market rate (TIBOR) plus, the alternative applicable TIBOR margin during the availability period from the closing date to the commitment termination date or (b) the TIBOR rate offered by the agent to major banks in yen for the applicable period plus, the applicable alternative TIBOR margin during the term out period	No later than March 29, 2024	.30% to .50%, depending on the Parent Company's debt ratings as of the date of determination	General corporate purposes, including a capital contingency plan for the operations of the Parent Company
Aflac Incorporated and Aflac	unsecured revolving	5 years	November 18, 2024, or the date commitments are terminated pursuant to an event of default	$1.0 billion	$0.0 billion	A rate per annum equal to, at the Company's option, either, (a) LIBOR adjusted for certain costs or (b) a base rate determined by reference to the highest of (1) the federal funds rate plus 1/2 of 1%, (2) the rate of interest for such day announced by Mizuho Bank, Ltd. as its prime rate, or (3) the eurocurrency rate for an interest period of one month plus 1.00%, in each case plus an applicable margin	No later than November 18, 2024	.085% to .225%, depending on the Parent Company's debt ratings as of the date of determination	General corporate purposes, including a capital contingency plan for the operations of the Parent Company
Aflac Incorporated and Aflac	uncommitted bilateral	None specified	None specified	$50 million	$0 million	A rate per annum equal to, at the Parent Company's option, either (a) a eurocurrency rate determined by reference to the agent's LIBOR for the interest period relevant to such borrowing or (b) the base rate determined by reference to the greater of (i) the prime rate as determined by the agent, and (ii) the sum of 0.50% and the federal funds rate for such day	Up to 3 months	None	General corporate purposes
Aflac(1)	uncommitted revolving	364 days	November 30, 2020	$250 million	$0 million	USD three-month LIBOR plus 75 basis points per annum	3 months	None	General corporate purposes
Aflac Incorporated(1)	uncommitted revolving	364 days	April 2, 2021	¥50.0 billion	¥0.0 billion	Three-month TIBOR plus 70 basis points per annum	3 months	None	General corporate purposes
Aflac Incorporated(1)	uncommitted revolving	364 days	November 25, 2020	¥50.0 billion	¥0.0 billion	Three-month TIBOR plus 70 basis points per annum	3 months	None	General corporate purposes
Aflac New York(1)	uncommitted revolving	364 days	April 7, 2021	$25 million	$0 million	USD three-month LIBOR plus 75 basis points per annum	3 months	None	General corporate purposes
CAIC(1)	uncommitted revolving	364 days	March 20, 2021	$15 million	$0 million	USD three-month LIBOR plus 75 basis points per annum	3 months	None	General corporate purposes
Tier One Insurance Company(1)	uncommitted revolving	364 days	March 20, 2021	$0.3 million	$0 million	USD three-month LIBOR plus 75 basis points per annum	3 months	None	General corporate purposes
AGV Management Services Japan K.K.(1)	uncommitted revolving	364 days	May 1, 2021	¥500 million	¥350 million	A rate per annum equal to the short-term prime lending rates of banks appearing on the website for the Bank of Japan on the first day of the applicable period	No later than May 1, 2021	None	General corporate purposes

(1) Intercompany credit agreement

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SHAREHOLDERS' EQUITY (Tables)

9 Months Ended

Sep. 30, 2020

Stockholders' Equity Note [Abstract]

Schedule of Common Stock Outstanding Roll Forward

The following table is a reconciliation of the number of shares of the Company's common stock for the nine-month periods ended September 30.

(In thousands of shares)	2020	2019
Common stock - issued:
Balance, beginning of period	1,349,309	1,347,540
Exercise of stock options and issuance of restricted shares	1,546	1,650
Balance, end of period	1,350,855	1,349,190
Treasury stock:
Balance, beginning of period	622,516	592,254
Purchases of treasury stock:
Share repurchase program	26,108	23,126
Other	541	589
Dispositions of treasury stock:
Shares issued to AFL Stock Plan	(1,584)	(1,232)
Exercise of stock options	(49)	(382)
Other	(251)	(295)
Balance, end of period	647,281	614,060
Shares outstanding, end of period	703,574	735,130

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table presents the approximate number of share-based awards to purchase shares, on a weighted-average basis, that were considered to be anti-dilutive and were excluded from the calculation of diluted earnings per share for the following periods.

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2020		2019		2020		2019
Anti-dilutive share-based awards		592		1		857		8

Changes in Accumulated Other Comprehensive Income (Loss)

The tables below are reconciliations of accumulated other comprehensive income by component for the following periods.

Changes in Accumulated Other Comprehensive Income

Three Months Ended September 30, 2020
(In millions)	Unrealized Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Investment Securities			Unrealized Gains (Losses) on Derivatives			Pension Liability Adjustment			Total
Balance at June 30, 2020		$	(1,469)		$	8,532		$	(36)		$	(277)		$	6,750
Other comprehensive income (loss) before reclassification		179			995			1			(5)			1,170
Amounts reclassified from accumulated other comprehensive income (loss)		0			(7)			0			4			(3)
Net current-period other comprehensive income (loss)		179			988			1			(1)			1,167
Balance at September 30, 2020		$	(1,290)		$	9,520		$	(35)		$	(278)		$	7,917

All amounts in the table above are net of tax.

Three Months Ended September 30, 2019
(In millions)	Unrealized Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Investment Securities			Unrealized Gains (Losses) on Derivatives			Pension Liability Adjustment			Total
Balance at June 30, 2019		$	(1,455)		$	8,055		$	(27)		$	(209)		$	6,364
Other comprehensive income (loss) before reclassification		(24)			884			(6)			(2)			852
Amounts reclassified from accumulated other comprehensive income (loss)		0			31			0			4			35
Net current-period other comprehensive income (loss)		(24)			915			(6)			2			887
Balance at September 30, 2019		$	(1,479)		$	8,970		$	(33)		$	(207)		$	7,251

All amounts in the table above are net of tax.

Nine Months Ended September 30, 2020
(In millions)	Unrealized Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Investment Securities			Unrealized Gains (Losses) on Derivatives			Pension Liability Adjustment			Total
Balance at December 31, 2019		$	(1,623)		$	8,548		$	(33)		$	(277)		$	6,615
Cumulative effect of change in accounting principle - ASU 2019-04		0			848			0			0			848
Balance at January 1, 2020		$	(1,623)		$	9,396		$	(33)		$	(277)		$	7,463
Other comprehensive income (loss) before reclassification		333			20			(2)			(18)			333
Amounts reclassified from accumulated other comprehensive income (loss)		0			104			0			17			121
Net current-period other comprehensive income (loss)		333			124			(2)			(1)			454
Balance at September 30, 2020		$	(1,290)		$	9,520		$	(35)		$	(278)		$	7,917

All amounts in the table above are net of tax.

Nine Months Ended September 30, 2019
(In millions)	Unrealized Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Investment Securities			Unrealized Gains (Losses) on Derivatives			Pension Liability Adjustment			Total
Balance at December 31, 2018		$	(1,847)		$	4,234		$	(24)		$	(212)		$	2,151
Other comprehensive income (loss) before reclassification		368			4,737			(9)			(4)			5,092
Amounts reclassified from accumulated other comprehensive income (loss)		0			(1)			0			9			8
Net current-period other comprehensive income (loss)		368			4,736			(9)			5			5,100
Balance at September 30, 2019		$	(1,479)		$	8,970		$	(33)		$	(207)		$	7,251

All amounts in the table above are net of tax.

Reclassification Out Of Accumulated Other Comprehensive Income

The tables below summarize the amounts reclassified from each component of accumulated other comprehensive income into net earnings for the following periods.

Reclassifications Out of Accumulated Other Comprehensive Income

(In millions)	Three Months Ended September 30, 2020
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income			Affected Line Item in the Statements of Earnings
Unrealized gains (losses) on available-for-sale securities		$	13	Net investment gains (losses)
		(6)		Tax (expense) or benefit(1)
		$	7	Net of tax
Amortization of defined benefit pension items:
Actuarial gains (losses)		$	(7)	Acquisition and operating expenses(2)
Prior service (cost) credit		0		Acquisition and operating expenses(2)
		3		Tax (expense) or benefit(1)
		$	(4)	Net of tax
Total reclassifications for the period		$	3	Net of tax

(1) Based on 21% tax rate, with a cumulative adjustment to the first six months of 2020 due to the effects of Final and Proposed Regulations released on September 29, 2020. See Note 9 of the Notes to the Consolidated Financial Statements.

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 12 for additional details).

(In millions)	Three Months Ended September 30, 2019
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income			Affected Line Item in the Statements of Earnings
Unrealized gains (losses) on available-for-sale securities		$	(41)	Net investment gains (losses)
		10		Tax (expense) or benefit(1)
		$	(31)	Net of tax
Amortization of defined benefit pension items:
Actuarial gains (losses)		$	(5)	Acquisition and operating expenses(2)
Prior service (cost) credit		0		Acquisition and operating expenses(2)
		1		Tax (expense) or benefit(1)
		$	(4)	Net of tax
Total reclassifications for the period		$	(35)	Net of tax

(1) Based on 25% blended tax rate

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 12 for additional details).

(In millions)	Nine Months Ended September 30, 2020
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income			Affected Line Item in the Statements of Earnings
Unrealized gains (losses) on available-for-sale securities		$	(132)	Net investment gains (losses)
		28		Tax (expense) or benefit(1)
		$	(104)	Net of tax
Amortization of defined benefit pension items:
Actuarial gains (losses)		$	(22)	Acquisition and operating expenses(2)
Prior service (cost) credit		0		Acquisition and operating expenses(2)
		5		Tax (expense) or benefit(1)
		$	(17)	Net of tax
Total reclassifications for the period		$	(121)	Net of tax

(1) Based on 21% tax rate

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 12 for additional details).

(In millions)	Nine Months Ended September 30, 2019
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income			Affected Line Item in the Statements of Earnings
Unrealized gains (losses) on available-for-sale securities		$	1	Net investment gains (losses)
		0		Tax (expense) or benefit(1)
		$	1	Net of tax
Amortization of defined benefit pension items:
Actuarial gains (losses)		$	(12)	Acquisition and operating expenses(2)
Prior service (cost) credit		0		Acquisition and operating expenses(2)
		3		Tax (expense) or benefit(1)
		$	(9)	Net of tax
Total reclassifications for the period		$	(8)	Net of tax

(1) Based on 26% blended tax rate

(2) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 12 for additional details).

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SHARE-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Stock Options Outstanding and Exercisable

The following table provides information on stock options outstanding and exercisable at September 30, 2020.

	Stock Option Shares (in thousands)		Weighted-Average Remaining Term (in years)		Aggregate Intrinsic Value (in millions)			Weighted-Average Exercise Price Per Share
Outstanding		3,288		4.0		$	21		$	30.18
Exercisable		3,229		3.9		21			30.08

Schedule of Nonvested Restricted Stock Units Activity

The following table summarizes restricted stock activity during the nine-month period ended September 30, 2020.

(In thousands of shares)	Shares		Weighted-Average Grant-Date Fair Value Per Share
Restricted stock at December 31, 2019	2,715	(1)		$	43.74
Granted in 2020	1,494			45.97
Canceled in 2020	(58)			49.70
Vested in 2020	(1,556)			35.20
Restricted stock at September 30, 2020	2,595			$	48.69

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BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2020

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Schedule of Net Benefit Costs

Pension and other postretirement benefit expenses are included in acquisition and operating expenses in the consolidated statement of earnings, which includes other components of net periodic pension cost and postretirement costs (other than service costs) of $6 million for the three-month periods and $18 million for the nine-month periods ended September 30, 2020 and 2019, respectively. Total net periodic cost includes the following components:

	Three Months Ended September 30,
	Pension Benefits												Other
	Japan						U.S.						Postretirement Benefits
(In millions)	2020			2019			2020			2019			2020			2019
Components of net periodic benefit cost:
Service cost		$	6		$	6		$	7		$	5		$	0		$	0
Interest cost		1			1			9			10			0			0
Expected return on plan assets		(2)			(2)			(9)			(8)			0			0
Amortization of net actuarial loss		1			1			6			3			0			1
Net periodic (benefit) cost		$	6		$	6		$	13		$	10		$	0		$	1

	Nine Months Ended September 30,
	Pension Benefits												Other
	Japan						U.S.						Postretirement Benefits
(In millions)	2020			2019			2020			2019			2020			2019
Components of net periodic benefit cost:
Service cost		$	18		$	16		$	21		$	17		$	0		$	0
Interest cost		3			4			25			28			1			1
Expected return on plan assets		(6)			(5)			(27)			(22)			0			0
Amortization of net actuarial loss		3			3			18			8			1			1
Net periodic (benefit) cost		$	18		$	18		$	37		$	31		$	2		$	2

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Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions, ¥ in Billions		9 Months Ended
		Sep. 30, 2020 USD ($) segment	Sep. 30, 2019 USD ($)	Sep. 30, 2020 JPY (¥)	Jun. 30, 2020 USD ($)	Apr. 30, 2020 USD ($)	Mar. 31, 2020 USD ($) series	Mar. 31, 2020 JPY (¥) series	Jan. 01, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Significant Accounting Policies [Line Items]
Number of Series of Senior Notes Issued Through a U.S. Public Debt Offering | series							4	4
Cumulative effect of change in accounting principle, net of income taxes		$ 32,479	$ 29,438		$ 29,420		$ 26,402			$ 28,959	$ 28,241	$ 26,049	$ 23,462
Number of reportable insurance business segments | segment		2
Senior notes
Significant Accounting Policies [Line Items]
Debt instrument, principal amount | ¥								¥ 57.0
3.60% senior notes due April 2030
Significant Accounting Policies [Line Items]
Debt instrument, principal amount		$ 1,000				$ 1,000
Aflac Japan
Significant Accounting Policies [Line Items]
Percentage of the Company's total assets		83.00%		83.00%						84.00%
Percentage of the Company's total revenues		68.00%	69.00%
Accounting Standards Update 2019-04
Significant Accounting Policies [Line Items]
New Accounting Pronouncement Or Change In Accounting Principle Effect Of Adoption Reclassification From Held To Maturity To Available For Sale Debt Securities									$ 6,900
Retained earnings
Significant Accounting Policies [Line Items]
Cumulative effect of change in accounting principle, net of income taxes		$ 37,460	$ 33,710		35,204		34,599			$ 34,291	33,130	32,513	31,788
Accumulated other comprehensive income (loss)
Significant Accounting Policies [Line Items]
Cumulative effect of change in accounting principle, net of income taxes		7,917	$ 7,251		$ 6,750		$ 4,188			6,615	$ 6,364	$ 4,481	$ 2,151
100.0 billion yen line of credit
Significant Accounting Policies [Line Items]
Line of credit facility, maximum borrowing capacity | ¥				¥ 100.0
$1 billion line of credit
Significant Accounting Policies [Line Items]
Line of credit facility, maximum borrowing capacity		$ 1,000
Federal Home Loan Bank of Atlanta
Significant Accounting Policies [Line Items]
Line of credit facility, maximum borrowing capacity						800
Line of credit facility, capacity designated for short-term liquidity						$ 300
Cumulative effect, period of adoption, adjustment | Accounting Standards Update 2016-13
Significant Accounting Policies [Line Items]
Cumulative effect of change in accounting principle, net of income taxes	[1]									(56)
Cumulative effect, period of adoption, adjustment | Accounting Standards Update 2019-04
Significant Accounting Policies [Line Items]
Cumulative effect of change in accounting principle, net of income taxes	[1]									848
Cumulative effect, period of adoption, adjustment | Retained earnings | Accounting Standards Update 2016-13
Significant Accounting Policies [Line Items]
Cumulative effect of change in accounting principle, net of income taxes	[1]									(56)
Cumulative effect, period of adoption, adjustment | Retained earnings | Accounting Standards Update 2019-04
Significant Accounting Policies [Line Items]
Cumulative effect of change in accounting principle, net of income taxes	[1]									0
Cumulative effect, period of adoption, adjustment | Accumulated other comprehensive income (loss) | Accounting Standards Update 2016-13
Significant Accounting Policies [Line Items]
Cumulative effect of change in accounting principle, net of income taxes	[1]									0
Cumulative effect, period of adoption, adjustment | Accumulated other comprehensive income (loss) | Accounting Standards Update 2019-04
Significant Accounting Policies [Line Items]
Cumulative effect of change in accounting principle, net of income taxes	[1]									$ 848

[1] See Note 1 of the Notes to the Consolidated Financial Statements for the adoption of accounting guidance on January 1, 2020.

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BUSINESS SEGMENT INFORMATION - Operations by Segment - Revenues (Details) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) segment	Sep. 30, 2019 USD ($)
Segment Reporting, Revenue Reconciling Item [Line Items]
Number of reportable insurance business segments | segment				2
Net earned premiums		$ 4,623	$ 4,736	$ 13,969	$ 14,109
Net investment income		896	936	2,669	2,692
Total adjusted revenues		5,535	5,639	16,688	16,703
Net investment gains (losses)	[1],[2],[3],[4]	130	(103)	(454)	1
Total revenues		5,665	5,536	16,234	16,704
Aflac Japan
Segment Reporting, Revenue Reconciling Item [Line Items]
Net earned premiums		3,168	3,241	9,476	9,593
Adjusted net investment income	[1],[4]	663	659	1,939	1,878
Other income		11	12	32	34
Total revenues		3,842	3,912	11,447	11,505
Hedge costs		51	66	155	191
Net interest cash flows from derivatives		6	(4)	5	(18)
Aflac U.S.
Segment Reporting, Revenue Reconciling Item [Line Items]
Net earned premiums		1,407	1,445	4,348	4,365
Net investment income	[3]	175	183	523	540
Other income		24	2	78	6
Total revenues		1,606	1,630	4,949	4,911
Net interest cash flows from derivatives		1		2
Corporate and other
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	[2]	87	97	292	287
Hedge income		$ 22	$ 21	$ 78	$ 61

[1] Amortized hedge costs of $51 and $66 for the three-month periods and $155 and $191 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies have been reclassified from net investment gains (losses) and reported as a deduction from net investment income when analyzing operations.

[2] Amortized hedge income of $22 and $21 for the three-month periods $78 and $61 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies has been reclassified from net investment gains (losses) and reported as an increase to net investment income when analyzing operations.

[3] Net interest cash flows from derivatives associated with certain investment strategies of $1 for the three-month period and $2 for the nine-month period ended September 30, 2020, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

[4] Net interest cash flows from derivatives associated with certain investment strategies of $6 and $(4) for the three-month periods and $5 and $(18) for the nine-month periods ended September 30, 2020 and 2019, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

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BUSINESS SEGMENT INFORMATION - Operations by Segment - Pretax Earnings (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items]
Pretax adjusted earnings	[1]	$ 1,037	$ 1,156	$ 3,455	$ 3,438
Net investment gains (losses)	[2],[3],[4],[5],[6]	117	(120)	(497)	(49)
Other income (loss)		(1)	0	(16)	(1)
Earnings before income taxes		1,153	1,036	2,942	3,388
Income taxes applicable to pretax adjusted earnings		43	293	659	880
Effect of foreign currency translation on after tax adjusted earnings		3	15	17	2
Interest expense on debt		44	34	122	100
Aflac Japan
Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items]
Pretax adjusted earnings	[2],[6]	747	838	2,442	2,504
Hedge costs		51	66	155	191
Net interest cash flows from derivatives		6	(4)	5	(18)
Aflac U.S.
Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items]
Pretax adjusted earnings	[5]	329	335	1,082	996
Net interest cash flows from derivatives		1		2
Corporate and other
Segment Reporting, Reconciling Item for Adjusted Profit (Loss) from Segment to Consolidated [Line Items]
Pretax adjusted earnings	[3],[4]	(39)	(17)	(69)	(62)
Hedge income		22	21	78	61
Gain (loss) on change in fair value of derivative, interest rate component		$ 13	$ 16	$ 43	$ 50

[1] Includes $44 and $34 for the three-month periods and $122 and $100 for the nine-month periods ended September 30, 2020, and 2019, respectively, of interest expense on debt.

[2] Amortized hedge costs of $51 and $66 for the three-month periods and $155 and $191 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies have been reclassified from net investment gains (losses) and reported as a deduction from net investment income when analyzing operations.

[3] A gain of $13 and $16 for three-month periods and $43 and $50 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to the interest rate component of the change in fair value of foreign currency swaps on notes payable has been reclassified from net investment gains (losses) and included in adjusted earnings when analyzing operations.

[4] Amortized hedge income of $22 and $21 for the three-month periods and $78 and $61 for the nine-month periods ended September 30, 2020, and 2019, respectively, related to certain foreign currency exposure management strategies has been reclassified from net investment gains (losses) and reported as an increase in net investment income when analyzing operations.

[5] Net interest cash flows from derivatives associated with certain investment strategies of $1 for the three-month period and $2 for the nine-month period ended September 30, 2020, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

[6] Net interest cash flows from derivatives associated with certain investment strategies of $6 and $(4) for the three-month periods and $5 and $(18) for the nine-month periods ended September 30, 2020 and 2019, respectively, have been reclassified from net investment gains (losses) and included in adjusted earnings as a component of net investment income.

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BUSINESS SEGMENT INFORMATION - Operations by Segment - Assets (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 160,955	$ 152,768
Aflac Japan
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	133,995	127,523
Aflac U.S.
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	22,621	20,945
Corporate and other
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 4,339	$ 4,300

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INVESTMENTS - Available-for-sale Debt Securities (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 89,938	$ 79,371
Allowance for Credit Losses	38
Gross Unrealized Gains	13,866	12,266
Gross Unrealized Losses	638	375
Fair Value	103,128	91,262
Yen-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	55,074	45,684
Allowance for Credit Losses	0
Gross Unrealized Gains	7,839	7,410
Gross Unrealized Losses	317	113
Fair Value	62,596	52,981
Dollar-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	34,864	33,687
Allowance for Credit Losses	38
Gross Unrealized Gains	6,027	4,856
Gross Unrealized Losses	321	262
Fair Value	40,532	38,281
Japan government and agencies | Yen-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	32,646	30,929
Allowance for Credit Losses	0
Gross Unrealized Gains	4,297	5,169
Gross Unrealized Losses	42	0
Fair Value	36,901	36,098
Municipalities
Debt Securities, Available-for-sale [Line Items]
Fair Value	2,619	1,847
Municipalities | Yen-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,013	516
Allowance for Credit Losses	0
Gross Unrealized Gains	305	116
Gross Unrealized Losses	3	3
Fair Value	1,315	629
Municipalities | Dollar-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,143	1,077
Allowance for Credit Losses	0
Gross Unrealized Gains	161	141
Gross Unrealized Losses	0	0
Fair Value	1,304	1,218
Mortgage- and asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	717	410
Mortgage- and asset-backed securities | Yen-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	337	229
Allowance for Credit Losses	0
Gross Unrealized Gains	28	25
Gross Unrealized Losses	1	0
Fair Value	364	254
Mortgage- and asset-backed securities | Dollar-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	344	149
Allowance for Credit Losses	0
Gross Unrealized Gains	10	7
Gross Unrealized Losses	1	0
Fair Value	353	156
Public utilities
Debt Securities, Available-for-sale [Line Items]
Fair Value	10,398	6,780
Public utilities | Yen-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,585	1,855
Allowance for Credit Losses	0
Gross Unrealized Gains	960	406
Gross Unrealized Losses	1	0
Fair Value	5,544	2,261
Public utilities | Dollar-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,942	3,804
Allowance for Credit Losses	0
Gross Unrealized Gains	924	725
Gross Unrealized Losses	12	10
Fair Value	4,854	4,519
Sovereign and supranational
Debt Securities, Available-for-sale [Line Items]
Fair Value	1,422	1,042
Sovereign and supranational | Yen-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,054	680
Allowance for Credit Losses	0
Gross Unrealized Gains	82	50
Gross Unrealized Losses	4	0
Fair Value	1,132	730
Sovereign and supranational | Dollar-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	230	239
Allowance for Credit Losses	0
Gross Unrealized Gains	66	73
Gross Unrealized Losses	6	0
Fair Value	290	312
Banks/financial institutions
Debt Securities, Available-for-sale [Line Items]
Fair Value	11,696	10,287
Banks/financial institutions | Yen-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,505	6,152
Allowance for Credit Losses	0
Gross Unrealized Gains	683	700
Gross Unrealized Losses	180	86
Fair Value	8,008	6,766
Banks/financial institutions | Dollar-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,956	2,879
Allowance for Credit Losses	0
Gross Unrealized Gains	738	646
Gross Unrealized Losses	6	4
Fair Value	3,688	3,521
Other corporate
Debt Securities, Available-for-sale [Line Items]
Fair Value	39,081	34,496
Other corporate | Yen-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,934	5,323
Allowance for Credit Losses	0
Gross Unrealized Gains	1,484	944
Gross Unrealized Losses	86	24
Fair Value	9,332	6,243
Other corporate | Dollar-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	25,973	25,246
Allowance for Credit Losses	38
Gross Unrealized Gains	4,110	3,255
Gross Unrealized Losses	296	248
Fair Value	29,749	28,253
U.S. government and agencies | Dollar-denominated
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	276	293
Allowance for Credit Losses	0
Gross Unrealized Gains	18	9
Gross Unrealized Losses	0	0
Fair Value	$ 294	$ 302

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INVESTMENTS - Held-to-Maturity Debt Securities (Details) - USD ($) $ in Millions		Sep. 30, 2020	Dec. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost		$ 23,946	$ 30,085
Allowance for Credit Loss		9
Net Carrying Amount	[1]	23,937
Gross Unrealized Gains		5,870	7,519
Gross Unrealized Losses		0	10
Fair Value		29,807	37,594
Yen-denominated
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost		23,946	30,085
Allowance for Credit Loss		9
Net Carrying Amount		23,937
Gross Unrealized Gains		5,870	7,519
Gross Unrealized Losses		0	10
Fair Value		29,807	37,594
Japan government and agencies | Yen-denominated
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost		22,941	22,241
Allowance for Credit Loss		3
Net Carrying Amount		22,938
Gross Unrealized Gains		5,564	6,050
Gross Unrealized Losses		0	0
Fair Value		28,502	28,291
Municipalities
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost		370	821
Fair Value		490	1,083
Municipalities | Yen-denominated
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost		370	821
Allowance for Credit Loss		0
Net Carrying Amount		370
Gross Unrealized Gains		120	262
Gross Unrealized Losses		0	0
Fair Value		490	1,083
Mortgage- and asset-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost			16
Fair Value			17
Mortgage- and asset-backed securities | Yen-denominated
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost			16
Gross Unrealized Gains			1
Gross Unrealized Losses			0
Fair Value			17
Public utilities
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost		46	2,535
Fair Value		60	2,954
Public utilities | Yen-denominated
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost		47	2,535
Allowance for Credit Loss		1
Net Carrying Amount		46
Gross Unrealized Gains		14	419
Gross Unrealized Losses		0	0
Fair Value		60	2,954
Sovereign and supranational
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost		559	1,123
Fair Value		723	1,320
Sovereign and supranational | Yen-denominated
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost		564	1,123
Allowance for Credit Loss		5
Net Carrying Amount		559
Gross Unrealized Gains		164	197
Gross Unrealized Losses		0	0
Fair Value		723	1,320
Banks/financial institutions
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost			916
Fair Value			1,018
Banks/financial institutions | Yen-denominated
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost			916
Gross Unrealized Gains			105
Gross Unrealized Losses			3
Fair Value			1,018
Other corporate
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost		24	2,433
Fair Value		32	2,911
Other corporate | Yen-denominated
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, fixed maturities, amortized cost		24	2,433
Allowance for Credit Loss		0
Net Carrying Amount		24
Gross Unrealized Gains		8	485
Gross Unrealized Losses		0	7
Fair Value		$ 32	$ 2,911

[1] Net of allowance for credit losses

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INVESTMENTS - Equity Securities (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Equity Securities, FV-NI [Line Items]
Fair Value	$ 775	$ 802
Yen-denominated
Equity Securities, FV-NI [Line Items]
Fair Value	630	658
Dollar-denominated
Equity Securities, FV-NI [Line Items]
Fair Value	$ 145	$ 144

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INVESTMENTS - Contractual and Economic Maturities of Investments in Fixed Maturities (Detail) - USD ($) $ in Millions		Sep. 30, 2020	Dec. 31, 2019
Available for sale:
Due in one year or less	[1]	$ 1,031
Due after one year through five years	[1]	8,938
Due after five years through 10 years	[1]	13,159
Due after 10 years	[1]	66,091
Mortgage- and asset-backed securities	[1]	681
Total fixed maturity securities, available for sale, amortized cost	[1]	89,900
Held to maturity:
Due in one year or less	[1]	0
Due after one year through five years	[1]	0
Due after five years through 10 years	[1]	251
Due after 10 years	[1]	23,686
Mortgage- and asset-backed securities	[1]	0
Total fixed maturity securities, held to maturity, amortized cost	[1]	23,937
Available for sale:
Due in one year or less		1,053
Due after one year through five years		9,175
Due after five years through 10 years		15,092
Due after 10 years		77,091
Mortgage- and asset-backed securities		717
Total fixed maturity securities, available for sale, fair value		103,128	$ 91,262
Held to maturity:
Due in one year or less		0
Due after one year through five years		0
Due after five years through 10 years		292
Due after 10 years		29,515
Mortgage- and asset-backed securities		0
Total fixed maturity securities, held to maturity, fair value		$ 29,807	$ 37,594

[1] Net of allowance for credit losses

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INVESTMENTS - Investment Exposures Individually Exceeded 10% of Shareholders' Equity (Details) - Japan National Government - USD ($) $ in Millions		9 Months Ended	12 Months Ended
		Sep. 30, 2020	Dec. 31, 2019
Summary of Investment Holdings [Line Items]
Credit Rating	[1]	A+	A+
Amortized Cost	[1]	$ 54,078	$ 51,726
Fair Value	[1]	$ 63,588	$ 62,584

[1] Japan Government Bonds (JGBs) or JGB-backed securities

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INVESTMENTS - Information Regarding Pretax Net Gains and Losses From Investments (Detail) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019		Sep. 30, 2020	Sep. 30, 2019
Gain (Loss) on Securities [Line Items]
Loan loss reserves	[1]	$ 0	$ (5)		$ 0	$ (8)
Total net investment gains (losses)		108	(153)		(525)	(147)
Credit Losses
Fixed maturity securities available for sale		0	(13)	[2]	(75)	(13)	[2]
Fixed maturity securities held to maturity		0	0		1	0
Commercial mortgage and other loans		78	0		(86)	0
Loan commitments		64	0		(17)	0
Reinsurance recoverable and other		0	0		(2)	0
Total credit losses		142	(13)		(179)	(13)
Derivatives and Other
Derivative gains (losses)		138	(146)		173	(24)
Foreign currency gains (losses)		(186)	21		(356)	(181)
Derivatives and other
Gain (Loss) on Securities [Line Items]
Total net investment gains (losses)		(48)	(125)		(183)	(205)
Equity securities
Gain (Loss) on Securities [Line Items]
Total net investment gains (losses)		12	18		(106)	65
Fixed maturity securities
Gain (Loss) on Securities [Line Items]
Gross gains from sales		7	11		28	55
Gross losses from sales		0	(18)		(46)	(29)
Foreign currency gains (losses) on sales and redemptions		(5)	(21)		(39)	(12)
Total net investment gains (losses)		$ 2	$ (28)		$ (57)	$ 14

[1] U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only

[2] Includes other-than-temporary impairment losses for prior year

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INVESTMENTS - Net Effect on Shareholders' Equity of Unrealized Gains and Losses from Investment Securities (Detail) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Investments [Abstract]
Unrealized gains (losses) on securities available for sale	$ 13,228	$ 11,891
Deferred income taxes	(3,708)	(3,343)
Shareholders' equity, unrealized gains (losses) on fixed maturity securities	$ 9,520	$ 8,548

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INVESTMENTS - Fair Value and Gross Unrealized Losses for Securities That Have Been in Continuous Unrealized Loss Position (Detail) - Fixed maturity securities - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Sep. 30, 2020
Investments, Unrealized Loss Position [Line Items]
Total Fair Value		$ 11,432
Total Unrealized Losses		638
Less than 12 months Fair Value		7,684
Less than 12 months Unrealized Losses		323
12 months or longer Fair Value		3,748
12 months or longer Unrealized Losses		315
Total Fair Value	$ 7,190
Total Unrealized Losses	385
Less than 12 months Fair Value	3,423
Less than 12 months Unrealized Losses	178
12 months or longer Fair Value	3,767
12 months or longer Unrealized Losses	207
Yen-denominated | Japan government and agencies
Investments, Unrealized Loss Position [Line Items]
Total Fair Value		1,997
Total Unrealized Losses		42
Less than 12 months Fair Value		1,997
Less than 12 months Unrealized Losses		42
12 months or longer Fair Value		0
12 months or longer Unrealized Losses		0
Yen-denominated | Municipalities
Investments, Unrealized Loss Position [Line Items]
Total Fair Value		74
Total Unrealized Losses		3
Less than 12 months Fair Value		60
Less than 12 months Unrealized Losses		2
12 months or longer Fair Value		14
12 months or longer Unrealized Losses		1
Total Fair Value	80
Total Unrealized Losses	3
Less than 12 months Fair Value	80
Less than 12 months Unrealized Losses	3
12 months or longer Fair Value	0
12 months or longer Unrealized Losses	0
Yen-denominated | Mortgage- and asset-backed securities
Investments, Unrealized Loss Position [Line Items]
Total Fair Value		36
Total Unrealized Losses		1
Less than 12 months Fair Value		36
Less than 12 months Unrealized Losses		1
12 months or longer Fair Value		0
12 months or longer Unrealized Losses		0
Yen-denominated | Public utilities
Investments, Unrealized Loss Position [Line Items]
Total Fair Value		214
Total Unrealized Losses		1
Less than 12 months Fair Value		214
Less than 12 months Unrealized Losses		1
12 months or longer Fair Value		0
12 months or longer Unrealized Losses		0
Yen-denominated | Sovereign and supranational
Investments, Unrealized Loss Position [Line Items]
Total Fair Value		35
Total Unrealized Losses		4
Less than 12 months Fair Value		35
Less than 12 months Unrealized Losses		4
12 months or longer Fair Value		0
12 months or longer Unrealized Losses		0
Yen-denominated | Banks/financial institutions
Investments, Unrealized Loss Position [Line Items]
Total Fair Value		2,859
Total Unrealized Losses		180
Less than 12 months Fair Value		1,853
Less than 12 months Unrealized Losses		102
12 months or longer Fair Value		1,006
12 months or longer Unrealized Losses		78
Total Fair Value	1,828
Total Unrealized Losses	89
Less than 12 months Fair Value	1,828
Less than 12 months Unrealized Losses	89
12 months or longer Fair Value	0
12 months or longer Unrealized Losses	0
Yen-denominated | Other corporate
Investments, Unrealized Loss Position [Line Items]
Total Fair Value		1,095
Total Unrealized Losses		86
Less than 12 months Fair Value		911
Less than 12 months Unrealized Losses		81
12 months or longer Fair Value		184
12 months or longer Unrealized Losses		5
Total Fair Value	636
Total Unrealized Losses	31
Less than 12 months Fair Value	636
Less than 12 months Unrealized Losses	31
12 months or longer Fair Value	0
12 months or longer Unrealized Losses	0
Dollar-denominated | Mortgage- and asset-backed securities
Investments, Unrealized Loss Position [Line Items]
Total Fair Value		67
Total Unrealized Losses		1
Less than 12 months Fair Value		67
Less than 12 months Unrealized Losses		1
12 months or longer Fair Value		0
12 months or longer Unrealized Losses		0
Dollar-denominated | Public utilities
Investments, Unrealized Loss Position [Line Items]
Total Fair Value		342
Total Unrealized Losses		12
Less than 12 months Fair Value		210
Less than 12 months Unrealized Losses		6
12 months or longer Fair Value		132
12 months or longer Unrealized Losses		6
Total Fair Value	306
Total Unrealized Losses	10
Less than 12 months Fair Value	69
Less than 12 months Unrealized Losses	2
12 months or longer Fair Value	237
12 months or longer Unrealized Losses	8
Dollar-denominated | Sovereign and supranational
Investments, Unrealized Loss Position [Line Items]
Total Fair Value		36
Total Unrealized Losses		6
Less than 12 months Fair Value		36
Less than 12 months Unrealized Losses		6
12 months or longer Fair Value		0
12 months or longer Unrealized Losses		0
Dollar-denominated | Banks/financial institutions
Investments, Unrealized Loss Position [Line Items]
Total Fair Value		103
Total Unrealized Losses		6
Less than 12 months Fair Value		65
Less than 12 months Unrealized Losses		1
12 months or longer Fair Value		38
12 months or longer Unrealized Losses		5
Total Fair Value	79
Total Unrealized Losses	4
Less than 12 months Fair Value	18
Less than 12 months Unrealized Losses	0
12 months or longer Fair Value	61
12 months or longer Unrealized Losses	4
Dollar-denominated | Other corporate
Investments, Unrealized Loss Position [Line Items]
Total Fair Value		4,574
Total Unrealized Losses		296
Less than 12 months Fair Value		2,200
Less than 12 months Unrealized Losses		76
12 months or longer Fair Value		2,374
12 months or longer Unrealized Losses		$ 220
Total Fair Value	4,261
Total Unrealized Losses	248
Less than 12 months Fair Value	792
Less than 12 months Unrealized Losses	53
12 months or longer Fair Value	3,469
12 months or longer Unrealized Losses	$ 195

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INVESTMENTS - Commercial Mortgage and Other Loans by Portfolio Segment (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 10,987	$ 9,614
Percent of total commercial mortgage and other loans	100.00%	100.00%
Allowance for credit losses	$ (165)	$ (45)	[1]
Total net commercial mortgage and other loans	10,822	9,569
Transitional real estate loans
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 5,644	$ 5,472
Percent of total commercial mortgage and other loans	51.30%	57.00%
Allowance for credit losses	$ (53)	$ (22)	[1]
Commercial mortgage loans
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 1,732	$ 1,710
Percent of total commercial mortgage and other loans	15.80%	17.70%
Allowance for credit losses	$ (28)	$ (3)	[1]
Middle market loans
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 3,611	$ 2,432
Percent of total commercial mortgage and other loans	32.90%	25.30%
Allowance for credit losses	$ (84)	$ (20)	[1]
Office | Transitional real estate loans
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 2,146	$ 1,800
Percent of total commercial mortgage and other loans	19.50%	18.70%
Office | Commercial mortgage loans
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 403	$ 410
Percent of total commercial mortgage and other loans	3.70%	4.30%
Retail | Transitional real estate loans
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 179	$ 131
Percent of total commercial mortgage and other loans	1.60%	1.40%
Retail | Commercial mortgage loans
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 342	$ 348
Percent of total commercial mortgage and other loans	3.10%	3.50%
Apartment/Multi-Family | Transitional real estate loans
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 2,000	$ 2,085
Percent of total commercial mortgage and other loans	18.20%	21.70%
Apartment/Multi-Family | Commercial mortgage loans
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 594	$ 569
Percent of total commercial mortgage and other loans	5.40%	5.90%
Industrial | Transitional real estate loans
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 145	$ 256
Percent of total commercial mortgage and other loans	1.30%	2.70%
Industrial | Commercial mortgage loans
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 393	$ 383
Percent of total commercial mortgage and other loans	3.60%	4.00%
Hospitality | Transitional real estate loans
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 1,093	$ 1,036
Percent of total commercial mortgage and other loans	10.00%	10.80%
Other | Transitional real estate loans
Participating Mortgage Loans [Line Items]
Commercial mortgage and other loans, gross	$ 81	$ 164
Percent of total commercial mortgage and other loans	0.70%	1.70%

[1] U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only.

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INVESTMENTS - Transitional Real Estate Loans by Key Credit Quality Indicators (Details) - Transitional real estate loans $ in Millions	Sep. 30, 2020 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
2020	$ 530
2019	2,143
2018	2,058
2017	822
2016	34
Prior	57
Total Financing Receivable	5,644
Loan to Value Ratio, Zero to Fifty-nine Point Nine-nine Percent
Financing Receivable, Credit Quality Indicator [Line Items]
2020	48
2019	529
2018	382
2017	158
2016	20
Prior	57
Total Financing Receivable	1,194
Loan to Value Ratio, Sixty to Sixty-nine Point Nine-nine Percent
Financing Receivable, Credit Quality Indicator [Line Items]
2020	324
2019	811
2018	825
2017	440
2016	0
Prior	0
Total Financing Receivable	2,400
Loan to Value Ratio, Seventy to Seventy-nine Point Nine-nine Percent
Financing Receivable, Credit Quality Indicator [Line Items]
2020	132
2019	767
2018	851
2017	224
2016	14
Prior	0
Total Financing Receivable	1,988
Loan-to-Value Ratio Eighty Percent and Above
Financing Receivable, Credit Quality Indicator [Line Items]
2020	26
2019	36
2018	0
2017	0
2016	0
Prior	0
Total Financing Receivable	$ 62

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INVESTMENTS - Commercial Mortgage Loans by Key Credit Quality Indicators (Details) - Commercial mortgage loans $ in Millions	Sep. 30, 2020 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
2020	$ 48
2019	659
2018	171
2017	69
2016	785
Prior	0
Total Financing Receivable	$ 1,732
Weighted Average Debt Service Coverage Ratio	2.39
2020
Financing Receivable, Credit Quality Indicator [Line Items]
Weighted Average Debt Service Coverage Ratio	1.98
2019
Financing Receivable, Credit Quality Indicator [Line Items]
Weighted Average Debt Service Coverage Ratio	2.53
2018
Financing Receivable, Credit Quality Indicator [Line Items]
Weighted Average Debt Service Coverage Ratio	2.23
2017
Financing Receivable, Credit Quality Indicator [Line Items]
Weighted Average Debt Service Coverage Ratio	2.56
2016
Financing Receivable, Credit Quality Indicator [Line Items]
Weighted Average Debt Service Coverage Ratio	2.32
Prior
Financing Receivable, Credit Quality Indicator [Line Items]
Weighted Average Debt Service Coverage Ratio	0.00
Loan to Value Ratio, Zero to Fifty-nine Point Nine-nine Percent
Financing Receivable, Credit Quality Indicator [Line Items]
2020	$ 32
2019	402
2018	101
2017	69
2016	553
Prior	0
Total Financing Receivable	$ 1,157
Weighted Average Debt Service Coverage Ratio	2.63
Loan to Value Ratio, Sixty to Sixty-nine Point Nine-nine Percent
Financing Receivable, Credit Quality Indicator [Line Items]
2020	$ 16
2019	224
2018	70
2017	0
2016	184
Prior	0
Total Financing Receivable	$ 494
Weighted Average Debt Service Coverage Ratio	1.93
Loan to Value Ratio, Seventy to Seventy-nine Point Nine-nine Percent
Financing Receivable, Credit Quality Indicator [Line Items]
2020	$ 0
2019	33
2018	0
2017	0
2016	22
Prior	0
Total Financing Receivable	$ 55
Weighted Average Debt Service Coverage Ratio	1.79
Loan-to-Value Ratio Eighty Percent and Above
Financing Receivable, Credit Quality Indicator [Line Items]
2020	$ 0
2019	0
2018	0
2017	0
2016	26
Prior	0
Total Financing Receivable	$ 26
Weighted Average Debt Service Coverage Ratio	1.66

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INVESTMENTS - Middle Market Loans by Key Credit Quality Indicators (Details) - Middle market loans $ in Millions	Sep. 30, 2020 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
2020	$ 508
2019	1,190
2018	754
2017	510
2016	201
Prior	70
Revolving Loans	378
Total Financing Receivable	3,611
BBB
Financing Receivable, Credit Quality Indicator [Line Items]
2020	25
2019	117
2018	62
2017	56
2016	5
Prior	0
Revolving Loans	16
Total Financing Receivable	281
BB
Financing Receivable, Credit Quality Indicator [Line Items]
2020	201
2019	235
2018	237
2017	84
2016	37
Prior	15
Revolving Loans	86
Total Financing Receivable	895
B
Financing Receivable, Credit Quality Indicator [Line Items]
2020	267
2019	740
2018	315
2017	235
2016	119
Prior	24
Revolving Loans	185
Total Financing Receivable	1,885
CCC
Financing Receivable, Credit Quality Indicator [Line Items]
2020	15
2019	98
2018	121
2017	96
2016	37
Prior	31
Revolving Loans	90
Total Financing Receivable	488
CC Credit Rating
Financing Receivable, Credit Quality Indicator [Line Items]
2020	0
2019	0
2018	19
2017	39
2016	3
Prior	0
Revolving Loans	1
Total Financing Receivable	$ 62

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INVESTMENTS - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Allowance for Loan Losses by Portfolio Segment [Roll Forward]
Balance, beginning of period	[1]			$ (45)
(Addition to) release of allowance for credit losses	[2]	$ 0	$ 5	0	$ 8
Balance, end of period		(165)		(165)
Available-for-sale securities
Allowance for Loan Losses by Portfolio Segment [Roll Forward]
Balance, beginning of period	[1]			0
Transition impact to retained earnings						$ 0
(Addition to) release of allowance for credit losses				(75)
Write-offs, net of recoveries				37
Balance, end of period		(38)		(38)
Transitional real estate loans
Allowance for Loan Losses by Portfolio Segment [Roll Forward]
Balance, beginning of period	[1]			(22)
Transition impact to retained earnings						(2)
(Addition to) release of allowance for credit losses				(29)
Write-offs, net of recoveries				0
Balance, end of period		(53)		(53)
Commercial mortgage loans
Allowance for Loan Losses by Portfolio Segment [Roll Forward]
Balance, beginning of period	[1]			(3)
Transition impact to retained earnings						(8)
(Addition to) release of allowance for credit losses				(17)
Write-offs, net of recoveries				0
Balance, end of period		(28)		(28)
Middle market loans
Allowance for Loan Losses by Portfolio Segment [Roll Forward]
Balance, beginning of period	[1]			(20)
Transition impact to retained earnings						(33)
(Addition to) release of allowance for credit losses				(31)
Write-offs, net of recoveries				0
Balance, end of period		(84)		(84)
Held-to-maturity securities
Allowance for Loan Losses by Portfolio Segment [Roll Forward]
Balance, beginning of period	[1]			0
Transition impact to retained earnings						(10)
(Addition to) release of allowance for credit losses				1
Write-offs, net of recoveries				0
Balance, end of period		(9)		(9)
Reinsurance recoverables
Allowance for Loan Losses by Portfolio Segment [Roll Forward]
Balance, beginning of period	[1]			0
Transition impact to retained earnings						$ (11)
(Addition to) release of allowance for credit losses				0
Write-offs, net of recoveries				0
Balance, end of period		$ (11)		$ (11)

[1] U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only.

[2] U.S. GAAP guidance adopted as of January 1, 2020 has superseded these losses, included for comparative purposes only

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INVESTMENTS - Other Investments (Details) - USD ($) $ in Millions		Sep. 30, 2020	Dec. 31, 2019
Investment Holdings [Line Items]
Other investments		$ 1,904	$ 1,477
Policy loans
Investment Holdings [Line Items]
Other investments		261	250
Short-term investments
Investment Holdings [Line Items]
Other investments	[1]	823	628
Limited partnerships
Investment Holdings [Line Items]
Other investments		795	569
Other
Investment Holdings [Line Items]
Other investments		$ 25	$ 30

[1] Includes securities lending collateral

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INVESTMENTS - Investments in Consolidated Variable Interest Entities (Detail) - USD ($) $ in Millions		Sep. 30, 2020		Dec. 31, 2019
Variable Interest Entity [Line Items]
Available for sale, fixed maturity securities, amortized cost		$ 89,938		$ 79,371
Available for sale, fixed maturity securities		103,128		91,262
Equity securities		775		802
Commercial mortgage and other loans		10,822		9,569
Commercial mortgage and other loans, fair value		10,786		9,648
Other investments		1,904		1,477
Asset derivatives		439		482
Assets, fair value		110,728		98,070
Liability derivatives		625		586
Liabilities		128,476		123,809
Liabilities, fair value		625		586
Variable Interest Entity, Consolidated
Variable Interest Entity [Line Items]
Available for sale, fixed maturity securities, amortized cost		3,279	[1]	3,308
Available for sale, fixed maturity securities		4,284		4,312
Commercial mortgage and other loans		9,245	[1]	7,956
Commercial mortgage and other loans, fair value		9,201		8,015
Other investments	[2]	658	[1]	494
Other investments, fair value	[2]	658		494
Asset derivatives, amortized cost	[3]	97	[1]	169
Asset derivatives	[3]	97		169
Assets, amortized cost		13,279	[1]	11,927
Assets, fair value		14,240		12,990
Liability derivatives, amortized cost	[3]	240	[1]	126
Liability derivatives	[3]	240		126
Liabilities		240	[1]	126
Liabilities, fair value		$ 240		$ 126

[1] Net of allowance for credit losses

[2] Consists entirely of alternative investments in limited partnerships

[3] Consists entirely of derivatives

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INVESTMENTS - Investments in Variable Interest Entities Not Consolidated (Details) - USD ($) $ in Millions		Sep. 30, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Available for sale, fixed maturity securities, amortized cost		$ 89,938	$ 79,371
Available for sale, fixed maturity securities		103,128	91,262
Securities held to maturity, fixed maturities, amortized cost		23,946	30,085
Held to maturity, fixed maturity securities, fair value		29,807	37,594
Other investments		1,904	1,477
Assets, fair value		110,728	98,070
Variable Interest Entity, Not Consolidated
Variable Interest Entity [Line Items]
Available for sale, fixed maturity securities, amortized cost		5,800	4,129
Available for sale, fixed maturity securities		6,985	4,884
Securities held to maturity, fixed maturities, amortized cost		0	1,848
Held to maturity, fixed maturity securities, fair value		0	2,236
Other investments	[1]	137	75
Other investments, fair value	[1]	137	74
Assets, amortized cost		5,937	6,052
Assets, fair value		$ 7,122	$ 7,194

[1] Consists entirely of alternative investments in limited partnerships

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INVESTMENTS - Securities Lending Transactions Accounted for as Secured Borrowings (Details) - USD ($) $ in Millions		Sep. 30, 2020	Dec. 31, 2019
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred		$ 1,495	$ 1,876
Gross amount of recognized liabilities for securities lending		1,495	1,876
Japan government and agencies
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred		534	1,013
Public utilities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred		61	35
Sovereign and supranational
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred		2	2
Banks/financial institutions
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred		85	48
Other corporate
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred		813	778
Maturity Overnight and Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred	[1]	961	863
Maturity Overnight and Continuous | Japan government and agencies
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred	[1]	0	0
Maturity Overnight and Continuous | Public utilities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred	[1]	61	35
Maturity Overnight and Continuous | Sovereign and supranational
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred	[1]	2	2
Maturity Overnight and Continuous | Banks/financial institutions
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred	[1]	85	48
Maturity Overnight and Continuous | Other corporate
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred	[1]	813	778
Maturity up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred		534	1,013
Maturity up to 30 Days | Japan government and agencies
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred		534	1,013
Maturity up to 30 Days | Public utilities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred		0	0
Maturity up to 30 Days | Sovereign and supranational
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred		0	0
Maturity up to 30 Days | Banks/financial institutions
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred		0	0
Maturity up to 30 Days | Other corporate
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Loaned, Including Not Subject to Master Netting Arrangement and Assets other than Securities Transferred		$ 0	$ 0

[1] The related loaned security, under the Company's U.S. securities lending program, can be returned to the Company at the transferee's discretion; therefore, they are classified as Overnight and Continuous.

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INVESTMENTS - Additional Information (Detail) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2020 USD ($) investment	Jun. 30, 2020 investment	Mar. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 investment	Jan. 01, 2020 USD ($)	Dec. 31, 2019 USD ($)
Schedule of Investments [Line Items]
Held to maturity securities transferred to available for sale securities, number of investments | investment	0	0			0
Equity securities, FV-NI, unrealized gain (loss)	$ 31			$ (109)
Available for sale, fixed maturity securities, allowance for credit losses	38			38
Transitional real estate loan commitments	657			657
Commercial mortgage loan commitments	0			0
Middle market loan program unfunded amount	26			26			$ 99
Middle market loan commitments	2,300			2,300
Middle Market Loan Commitment Increase During Period			$ 2,200
Securities held to maturity, fixed maturities, amortized cost	23,946			23,946			30,085
Loan Commitments, Allowance for Credit Loss	31			31
Limited partnerships investment commitments	$ 1,500			$ 1,500
Percentage that the lending policy requires that the fair value of the securities received as collateral be of the fair value of the loaned securities	102.00%			102.00%
Percentage that the lending policy requires that the fair value of the unrestricted cash received as collateral be of the fair value of the loaned securities	100.00%			100.00%
Securities Lending, Securities Received as Collateral	$ 6,176			$ 6,176			$ 4,759
Middle Market Loan Commitment with External Manager, Remaining Commitment Outstanding				2,000
Accounting Standards Update 2019-04
Schedule of Investments [Line Items]
New Accounting Pronouncement Or Change In Accounting Principle Effect Of Adoption Reclassification From Held To Maturity To Available For Sale Debt Securities						$ 6,900
New Accounting Pronouncement Or Change In Accounting Principle Effect Of Adoption Unrealized Gain Loss Net Of Tax Reclassification To Accumulated Other Comprehensive Income						$ 848
Zero-credit-loss expectation | Japan government and agencies
Schedule of Investments [Line Items]
Securities held to maturity, fixed maturities, amortized cost	$ 22,800			$ 22,800
CALIFORNIA | Commercial Mortgage and Transitional Real Estate Loans
Schedule of Investments [Line Items]
Concentration Risk, Percentage				21.00%
TEXAS | Commercial Mortgage and Transitional Real Estate Loans
Schedule of Investments [Line Items]
Concentration Risk, Percentage				14.00%
FLORIDA | Commercial Mortgage and Transitional Real Estate Loans
Schedule of Investments [Line Items]
Concentration Risk, Percentage				11.00%

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DERIVATIVE INSTRUMENTS - Additional Information (Detail) $ in Millions	Sep. 30, 2020 USD ($) yr	Dec. 31, 2019 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Derivative, Notional Amount	$ 57,454	$ 61,695
Cash flow hedging activity, maximum time period | yr	6
Derivative, net liability position, aggregate fair value	$ 265	$ 301
Additional Collateral, Aggregate Fair Value	155
Senior notes | Interest rate swaps
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Derivative, Notional Amount	$ 2,300

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DERIVATIVE INSTRUMENTS - Summary of Balance Sheet Classification of Derivative Fair Value Amounts, as well as Gross Asset and Liability Fair Value Amounts (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Notional Amount	$ 57,454	$ 61,695
Derivative asset, fair value, gross asset including not subject to master netting arrangement	439	482
Derivative liability, fair value, gross liability including not subject to master netting arrangement	625	586
Asset derivatives fair value	342	313
Liability derivatives fair value	385	460
Cash flow hedges
Derivatives, Fair Value [Line Items]
Notional Amount	18	75
Asset derivatives fair value	0	0
Liability derivatives fair value	1	8
Cash flow hedges | Foreign currency swaps | Variable Interest Entity
Derivatives, Fair Value [Line Items]
Notional Amount	18	75
Asset derivatives fair value	0	0
Liability derivatives fair value	1	8
Fair value hedges
Derivatives, Fair Value [Line Items]
Notional Amount	8,933	12,780
Asset derivatives fair value	1	0
Liability derivatives fair value	1	43
Fair value hedges | Foreign currency forwards
Derivatives, Fair Value [Line Items]
Notional Amount	64	964
Asset derivatives fair value	1	0
Liability derivatives fair value	0	38
Fair value hedges | Foreign currency options
Derivatives, Fair Value [Line Items]
Notional Amount	8,869	11,573
Asset derivatives fair value	0	0
Liability derivatives fair value	1	5
Fair value hedges | Interest rate swaptions
Derivatives, Fair Value [Line Items]
Notional Amount	0	243
Asset derivatives fair value	0	0
Liability derivatives fair value	0	0
Net investment hedge
Derivatives, Fair Value [Line Items]
Notional Amount	7,120	6,952
Asset derivatives fair value	46	72
Liability derivatives fair value	26	2
Net investment hedge | Foreign currency forwards
Derivatives, Fair Value [Line Items]
Notional Amount	5,037	4,952
Asset derivatives fair value	45	72
Liability derivatives fair value	26	2
Net investment hedge | Foreign currency options
Derivatives, Fair Value [Line Items]
Notional Amount	2,083	2,000
Asset derivatives fair value	1	0
Liability derivatives fair value	0	0
Non-qualifying strategies
Derivatives, Fair Value [Line Items]
Notional Amount	41,383	41,888
Asset derivatives fair value	392	410
Liability derivatives fair value	597	533
Non-qualifying strategies | Foreign currency swaps | Variable Interest Entity
Derivatives, Fair Value [Line Items]
Notional Amount	2,743	2,587
Asset derivatives fair value	97	169
Liability derivatives fair value	239	118
Non-qualifying strategies | Foreign currency swaps | Consolidated Entity Excluding Variable Interest Entities (VIE)
Derivatives, Fair Value [Line Items]
Notional Amount	2,250	2,800
Asset derivatives fair value	53	72
Liability derivatives fair value	49	78
Non-qualifying strategies | Foreign currency forwards
Derivatives, Fair Value [Line Items]
Notional Amount	25,319	19,821
Asset derivatives fair value	236	166
Liability derivatives fair value	309	337
Non-qualifying strategies | Foreign currency options
Derivatives, Fair Value [Line Items]
Notional Amount	9,071	9,553
Asset derivatives fair value	0	0
Liability derivatives fair value	0	0
Non-qualifying strategies | Interest rate swaps
Derivatives, Fair Value [Line Items]
Notional Amount	2,000	7,120
Asset derivatives fair value	6	3
Liability derivatives fair value	0	0
Non-qualifying strategies | Interest rate swaptions
Derivatives, Fair Value [Line Items]
Notional Amount	0	7
Asset derivatives fair value	0	0
Liability derivatives fair value	$ 0	$ 0

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DERIVATIVE INSTRUMENTS - Gains (Losses) Recognized on Fair Value Hedging Relationships (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses) recognized for derivatives		$ (1)	$ (30)	$ (19)	$ (22)
Gains (losses) on derivatives excluded from effectiveness testing	[1]	(2)	(35)	(11)	(66)
Gains (losses) on derivatives included in effectiveness testing	[2]	1	5	(8)	44
Gains (losses) recognized for hedged items	[2]	(1)	(4)	9	(43)
Net realized gains (losses) recognized for fair value hedge		0	1	1	1
Fixed maturity securities | Foreign currency forwards
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses) recognized for derivatives		1	(19)	(15)	(4)
Gains (losses) on derivatives excluded from effectiveness testing	[1]	0	(24)	(8)	(48)
Gains (losses) on derivatives included in effectiveness testing	[2]	1	5	(7)	44
Gains (losses) recognized for hedged items	[2]	(1)	(4)	8	(43)
Net realized gains (losses) recognized for fair value hedge		0	1	1	1
Fixed maturity securities | Foreign currency options
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses) recognized for derivatives		(2)	(5)	(4)	(9)
Gains (losses) on derivatives excluded from effectiveness testing	[1]	(2)	(5)	(3)	(9)
Gains (losses) on derivatives included in effectiveness testing	[2]	0	0	(1)	0
Gains (losses) recognized for hedged items	[2]	0	0	1	0
Net realized gains (losses) recognized for fair value hedge		$ 0	0	$ 0	0
Fixed maturity securities | Interest rate swaptions
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses) recognized for derivatives			(6)		(9)
Gains (losses) on derivatives excluded from effectiveness testing	[1]		(6)		(9)
Gains (losses) on derivatives included in effectiveness testing	[2]		0		0
Gains (losses) recognized for hedged items	[2]		0		0
Net realized gains (losses) recognized for fair value hedge			$ 0		$ 0

[1] Gains (losses) excluded from effectiveness testing includes the forward point on foreign currency forwards and time value change on foreign currency options which are reported in the consolidated statement of earnings as net investment gains (losses). It also includes the change in the fair value of the interest rate swaptions related to the time value of the swaptions which is recognized as a component of other comprehensive income (loss).

[2] Gains and losses on foreign currency forwards and options and related hedged items are reported in the consolidated statement of earnings as net investment gains (losses). For interest rate swaptions and related hedged items, gains and losses included in the hedge assessment, premium amortization and time value amortization while the hedge items are still outstanding are reported within net investment income. The time value gains and losses for interest rate swaptions when the related hedged items are redeemed are reported in net investment gains and losses consistent with the impact of the hedged item. For the three-month and nine-month periods ended September 30, 2020 and 2019, gains and losses included in the hedge assessment on interest rate swaptions and related hedged items were immaterial.

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DERIVATIVE INSTRUMENTS - Schedule of Interest Rate Fair Value Hedges Hedged Items (Details) - USD ($) $ in Millions		Sep. 30, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount		$ 57,454	$ 61,695
Fair value hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount		8,933	12,780
Interest rate swaptions | Fair value hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount		0	243
Fixed maturity securities | Interest rate swaptions
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of Hedged Assets/ (Liabilities)	[1]	4,368	4,633
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of Hedged Assets/(Liabilities)		$ 241	$ 256

[1] The balance includes hedging adjustment on discontinued hedging relationships of $241 in 2020 and $256 in 2019.

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DERIVATIVE INSTRUMENTS - Derivatives and Hedging Instruments Gain (Loss) Summary (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, gain (loss) reclassified from accumulated OCI into income, effective portion, net	[1]	$ 0	$ (1)	$ (2)	$ (3)
Unrealized foreign currency translation gains (losses) during period		172	(22)	329	393
Derivative gains (losses)		138	(146)	173	(24)
Derivative and non-derivative hedging instruments gain (loss) recognized in other comprehensive income effective portion before tax	[2]	(140)	13	(241)	(45)
Cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, gain (loss) reclassified from accumulated OCI into income, effective portion, net	[1]	0	(1)	(1)	(2)
Net investment gains (losses) recognized in income on derivative (ineffective portion)	[3]	0	(1)	0	(1)
Gain (loss) recognized in other comprehensive income on derivative (effective portion)	[2]	2	(2)	(4)	(4)
Cash flow hedges | Foreign currency swaps | Variable Interest Entity
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, gain (loss) reclassified from accumulated OCI into income, effective portion, net	[1]	0	(1)	(1)	(2)
Net investment gains (losses) recognized in income on derivative (ineffective portion)		0	(1)	0	(1)
Gain (loss) recognized in other comprehensive income on derivative (effective portion)	[2]	2	(2)	(4)	(4)
Fair value hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, gain (loss) reclassified from accumulated OCI into income, effective portion, net	[1]	0	0	(1)	(1)
Net investment gains (losses) recognized in income on derivative (ineffective portion)		(2)	(28)	(10)	(56)
Gain (loss) recognized in other comprehensive income on derivative (effective portion)	[2]	0	(6)	1	(8)
Fair value hedges | Foreign currency forwards
Derivative Instruments, Gain (Loss) [Line Items]
Net investment gains (losses) recognized in income on derivative (ineffective portion)	[3]	0	(23)	(7)	(47)
Fair value hedges | Foreign currency options
Derivative Instruments, Gain (Loss) [Line Items]
Net investment gains (losses) recognized in income on derivative (ineffective portion)	[3]	(2)	(5)	(3)	(9)
Fair value hedges | Interest rate swaptions
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, gain (loss) reclassified from accumulated OCI into income, effective portion, net	[1],[3]	0	0	(1)	(1)
Net investment gains (losses) recognized in income on derivative (ineffective portion)	[3]	0	0	0	0
Gain (loss) recognized in other comprehensive income on derivative (effective portion)	[2],[3]	0	(6)	1	(8)
Net investment hedge
Derivative Instruments, Gain (Loss) [Line Items]
Net investment gains (losses) recognized in income on derivative (ineffective portion)		(18)	17	133	17
Unrealized foreign currency translation gains (losses) during period	[2]	(142)	21	(238)	(33)
Net investment hedge | Foreign currency forwards
Derivative Instruments, Gain (Loss) [Line Items]
Net investment gains (losses) recognized in income on derivative (ineffective portion)		(16)	20	136	20
Unrealized foreign currency translation gains (losses) during period	[2]	(91)	19	(166)	19
Net investment hedge | Foreign currency options
Derivative Instruments, Gain (Loss) [Line Items]
Net investment gains (losses) recognized in income on derivative (ineffective portion)		(2)	(3)	(3)	(3)
Unrealized foreign currency translation gains (losses) during period	[2]	0	0	0	0
Net investment hedge | Non-derivative hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Net investment gains (losses) recognized in income on derivative (ineffective portion)		0	0	0	0
Unrealized foreign currency translation gains (losses) during period	[2]	(51)	2	(72)	(52)
Non-qualifying strategies
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, gain (loss) recognized in income, net		158	(134)	50	16
Non-qualifying strategies | Foreign currency swaps | Variable Interest Entity
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, gain (loss) recognized in income, net		40	(93)	(185)	(96)
Non-qualifying strategies | Foreign currency swaps | Consolidated Entity Excluding Variable Interest Entities (VIE)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, gain (loss) recognized in income, net		(27)	27	54	71
Non-qualifying strategies | Foreign currency forwards
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, gain (loss) recognized in income, net		139	(70)	133	23
Non-qualifying strategies | Foreign currency options
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, gain (loss) recognized in income, net		4	0	(1)	0
Non-qualifying strategies | Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, gain (loss) recognized in income, net		0	2	$ 49	$ 18
Non-qualifying strategies | Forward bond purchase commitment | Variable Interest Entity
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, gain (loss) recognized in income, net		$ 2	$ 0

[1] Cash flow hedge items and the change in the fair value of interest rate swaptions related to the time value of the swaptions in fair value hedges are recorded as unrealized gains (losses) on derivatives and net investment hedge items are recorded in the unrealized foreign currency translation gains (losses) line in the consolidated statement of comprehensive income (loss).

[2] Impact of cash flow hedges reported as net investment gains (losses) includes an immaterial amount of gains or losses reclassified from accumulated other comprehensive income (loss) into earnings. It also includes an immaterial amount excluded from effectiveness testing during the nine-month periods ended September 30, 2020 and 2019, respectively. In addition, an immaterial amount of income (loss) was reclassified from accumulated other comprehensive income (loss) into earnings during the nine-month periods ended September 30, 2020 and 2019, respectively, related to fair value hedges excluded component.

[3] Impact shown net of effect of hedged items (see Fair Value Hedges section of this Note 4 for further detail)

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DERIVATIVE INSTRUMENTS - Offsetting of Financial Assets and Derivative Assets (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Offsetting Assets [Line Items]
Gross amount of recognized derivative assets	$ 342	$ 313
Gross amount of liabilities offset in balance sheet	0	0
Net amount of derivative assets presented in balance sheet	342	313
Financial instruments, amount not offset	(238)	(190)
Derivative, collateral, obligation to return securities	(6)	(7)
Derivative, collateral, obligation to return cash	(97)	(113)
Derivative asset, fair value, amount offset against collateral, subject to master netting agreement	1	3
Derivative asset, not subject to master netting arrangement	97	169
Derivative asset, fair value, amount offset against collateral, not subject to master netting agreement	97	169
Derivative asset, fair value, gross asset including not subject to master netting arrangement	439	482
Net amount of derivative assets presented in balance sheet	439	482
Derivative asset, fair value, amount offset against collateral	98	172
Gross amounts of recognized financial instruments	1,910	2,342
Gross amounts offset in balance sheet	0	0
Net amounts of assets presented in balance sheet	1,910	2,342
Carrying value of financial instruments not offset in balance sheet	(238)	(190)
Securities collateral, not offset in balance sheet	(6)	(7)
Cash collateral, not offset in balance sheet	(1,568)	(1,973)
Financial instruments, amount of assets offset against collateral	98	172
Over the Counter - Bilateral
Offsetting Assets [Line Items]
Gross amount of recognized derivative assets	336	310
Gross amount of liabilities offset in balance sheet	0	0
Net amount of derivative assets presented in balance sheet	336	310
Financial instruments, amount not offset	(238)	(190)
Derivative, collateral, obligation to return securities	(6)	(7)
Derivative, collateral, obligation to return cash	(92)	(113)
Derivative asset, fair value, amount offset against collateral, subject to master netting agreement	0	0
Derivative asset, not subject to master netting arrangement	97	169
Derivative asset, fair value, amount offset against collateral, not subject to master netting agreement	97	169
Other the Counter - Cleared
Offsetting Assets [Line Items]
Gross amount of recognized derivative assets	6	3
Gross amount of liabilities offset in balance sheet	0	0
Net amount of derivative assets presented in balance sheet	6	3
Financial instruments, amount not offset	0	0
Derivative, collateral, obligation to return securities	0	0
Derivative, collateral, obligation to return cash	(5)	0
Derivative asset, fair value, amount offset against collateral, subject to master netting agreement	1	3
Securities Lending and Similar Arrangements
Offsetting Assets [Line Items]
Gross amounts of recognized financial instruments	1,471	1,860
Gross amounts offset in balance sheet	0	0
Net amounts of assets presented in balance sheet	1,471	1,860
Carrying value of financial instruments not offset in balance sheet	0	0
Securities collateral, not offset in balance sheet	0	0
Cash collateral, not offset in balance sheet	(1,471)	(1,860)
Financial instruments, amount of assets offset against collateral	$ 0	$ 0

XML

DERIVATIVE INSTRUMENTS - Offsetting of Financial Liabilities and Derivative Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Offsetting Liabilities [Line Items]
Gross amount of recognized derivative liabilities	$ 385	$ 460
Gross amount of assets offset in balance sheet	0	0
Derivative liability, fair value, amount not offset against collateral	385	460
Financial instruments, amount not offset	(238)	(190)
Derivative, collateral, right to reclaim securities	(89)	(222)
Derivative, collateral, right to reclaim cash	(21)	(33)
Derivative liability, fair value, amount offset against collateral, subject to master netting agreement	37	15
Derivative liability, not subject to master netting arrangement	240	126
Derivative liability, fair value, amount offset against collateral, not subject to master netting agreement	240	126
Derivative liability, fair value, gross liability including not subject to master netting arrangement	625	586
Net amount of derivative liabilities presented in balance sheet	625	586
Derivative liability, fair value, amount offset against collateral	277	141
Gross Amounts of Recognized Financial Instruments, Offsetting Liabilities	2,120	2,462
Gross Amounts Offset in Statement of Financial Position, Offsetting Liabilities	0	0
Net Amounts of Financial Instruments Presented in Balance Sheet, Offsetting Liabilities	2,120	2,462
Carrying value of financial instruments, liabilities not offset in balance sheet	(1,709)	(2,050)
Securities Collateral, Liabilities Not Offset in Balance Sheet	(89)	(222)
Cash Collateral, Liabilities Not Offset in Balance Sheet	(21)	(33)
Financial instruments, amount of liabilities offset against collateral	301	157
Over the Counter - Bilateral
Offsetting Liabilities [Line Items]
Gross amount of recognized derivative liabilities	385	459
Gross amount of assets offset in balance sheet	0	0
Derivative liability, fair value, amount not offset against collateral	385	459
Financial instruments, amount not offset	(238)	(190)
Derivative, collateral, right to reclaim securities	(89)	(222)
Derivative, collateral, right to reclaim cash	(21)	(32)
Derivative liability, fair value, amount offset against collateral, subject to master netting agreement	37	15
Derivative liability, not subject to master netting arrangement	240	126
Derivative liability, fair value, amount offset against collateral, not subject to master netting agreement	240	126
OTC- Cleared
Offsetting Liabilities [Line Items]
Gross amount of recognized derivative liabilities		1
Gross amount of assets offset in balance sheet		0
Derivative liability, fair value, amount not offset against collateral		1
Financial instruments, amount not offset		0
Derivative, collateral, right to reclaim securities		0
Derivative, collateral, right to reclaim cash		(1)
Derivative liability, fair value, amount offset against collateral, subject to master netting agreement		0
Securities Lending and Similar Arrangements
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Financial Instruments, Offsetting Liabilities	1,495	1,876
Gross Amounts Offset in Statement of Financial Position, Offsetting Liabilities	0	0
Net Amounts of Financial Instruments Presented in Balance Sheet, Offsetting Liabilities	1,495	1,876
Carrying value of financial instruments, liabilities not offset in balance sheet	(1,471)	(1,860)
Securities Collateral, Liabilities Not Offset in Balance Sheet	0	0
Cash Collateral, Liabilities Not Offset in Balance Sheet	0	0
Financial instruments, amount of liabilities offset against collateral	$ 24	$ 16

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FAIR VALUE MEASUREMENTS - Fair Value Hierarchy Levels of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Assets:
Available for sale, fixed maturity securities	$ 103,128	$ 91,262
Equity securities	775	802
Other investments	823	628
Cash and cash equivalents	5,563	4,896
Asset derivatives	439	482
Total assets	110,728	98,070
Liabilities:
Liability derivatives	625	586
Total liabilities	625	586
Foreign currency swaps
Assets:
Asset derivatives	150	241
Liabilities:
Liability derivatives	289	204
Foreign currency forwards
Assets:
Asset derivatives	282	238
Liabilities:
Liability derivatives	335	377
Foreign currency options
Assets:
Asset derivatives	1
Liabilities:
Liability derivatives	1	5
Interest rate swaps
Assets:
Asset derivatives	6	3
Government and agencies
Assets:
Available for sale, fixed maturity securities	37,195	36,400
Municipalities
Assets:
Available for sale, fixed maturity securities	2,619	1,847
Mortgage- and asset-backed securities
Assets:
Available for sale, fixed maturity securities	717	410
Public utilities
Assets:
Available for sale, fixed maturity securities	10,398	6,780
Sovereign and supranational
Assets:
Available for sale, fixed maturity securities	1,422	1,042
Banks/financial institutions
Assets:
Available for sale, fixed maturity securities	11,696	10,287
Other corporate
Assets:
Available for sale, fixed maturity securities	39,081	34,496
Level 1
Assets:
Available for sale, fixed maturity securities	35,539	34,878
Equity securities	608	642
Other investments	823	628
Cash and cash equivalents	5,563	4,896
Asset derivatives	0	0
Total assets	42,533	41,044
Liabilities:
Total liabilities	0	0
Level 1 | Foreign currency swaps
Assets:
Asset derivatives	0	0
Liabilities:
Liability derivatives	0	0
Level 1 | Foreign currency forwards
Assets:
Asset derivatives	0	0
Liabilities:
Liability derivatives	0	0
Level 1 | Foreign currency options
Assets:
Asset derivatives	0
Liabilities:
Liability derivatives	0	0
Level 1 | Interest rate swaps
Assets:
Asset derivatives	0	0
Level 1 | Government and agencies
Assets:
Available for sale, fixed maturity securities	35,539	34,878
Level 1 | Municipalities
Assets:
Available for sale, fixed maturity securities	0	0
Level 1 | Mortgage- and asset-backed securities
Assets:
Available for sale, fixed maturity securities	0	0
Level 1 | Public utilities
Assets:
Available for sale, fixed maturity securities	0	0
Level 1 | Sovereign and supranational
Assets:
Available for sale, fixed maturity securities	0	0
Level 1 | Banks/financial institutions
Assets:
Available for sale, fixed maturity securities	0	0
Level 1 | Other corporate
Assets:
Available for sale, fixed maturity securities	0	0
Level 2
Assets:
Available for sale, fixed maturity securities	66,738	55,697
Equity securities	81	80
Other investments	0	0
Cash and cash equivalents	0	0
Asset derivatives	342	313
Total assets	67,161	56,090
Liabilities:
Total liabilities	385	460
Level 2 | Foreign currency swaps
Assets:
Asset derivatives	53	72
Liabilities:
Liability derivatives	49	78
Level 2 | Foreign currency forwards
Assets:
Asset derivatives	282	238
Liabilities:
Liability derivatives	335	377
Level 2 | Foreign currency options
Assets:
Asset derivatives	1
Liabilities:
Liability derivatives	1	5
Level 2 | Interest rate swaps
Assets:
Asset derivatives	6	3
Level 2 | Government and agencies
Assets:
Available for sale, fixed maturity securities	1,656	1,522
Level 2 | Municipalities
Assets:
Available for sale, fixed maturity securities	2,619	1,847
Level 2 | Mortgage- and asset-backed securities
Assets:
Available for sale, fixed maturity securities	526	232
Level 2 | Public utilities
Assets:
Available for sale, fixed maturity securities	10,030	6,556
Level 2 | Sovereign and supranational
Assets:
Available for sale, fixed maturity securities	1,422	1,042
Level 2 | Banks/financial institutions
Assets:
Available for sale, fixed maturity securities	11,672	10,264
Level 2 | Other corporate
Assets:
Available for sale, fixed maturity securities	38,813	34,234
Level 3
Assets:
Available for sale, fixed maturity securities	851	687
Equity securities	86	80
Other investments	0	0
Cash and cash equivalents	0	0
Asset derivatives	97	169
Total assets	1,034	936
Liabilities:
Total liabilities	240	126
Level 3 | Foreign currency swaps
Assets:
Asset derivatives	97	169
Liabilities:
Liability derivatives	240	126
Level 3 | Foreign currency forwards
Assets:
Asset derivatives	0	0
Liabilities:
Liability derivatives	0	0
Level 3 | Foreign currency options
Assets:
Asset derivatives	0
Liabilities:
Liability derivatives	0	0
Level 3 | Interest rate swaps
Assets:
Asset derivatives	0	0
Level 3 | Government and agencies
Assets:
Available for sale, fixed maturity securities	0	0
Level 3 | Municipalities
Assets:
Available for sale, fixed maturity securities	0	0
Level 3 | Mortgage- and asset-backed securities
Assets:
Available for sale, fixed maturity securities	191	178
Level 3 | Public utilities
Assets:
Available for sale, fixed maturity securities	368	224
Level 3 | Sovereign and supranational
Assets:
Available for sale, fixed maturity securities	0	0
Level 3 | Banks/financial institutions
Assets:
Available for sale, fixed maturity securities	24	23
Level 3 | Other corporate
Assets:
Available for sale, fixed maturity securities	$ 268	$ 262

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FAIR VALUE MEASUREMENTS - Fair Value Hierarchy Levels of Assets and Liabilities Carried at Cost or Amortized Cost (Details) - USD ($) $ in Millions	Sep. 30, 2020		Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	$ 1,904		$ 1,477
Assets:
Securities held to maturity, fixed maturities, amortized cost	23,946		30,085
Held to maturity, fixed maturity securities, fair value	29,807		37,594
Commercial mortgage and other loans	10,822		9,569
Commercial mortgage and other loans, fair value	10,786		9,648
Other investments carried at amortized cost	25	[1]	30	[2]
Other investments carried at amortized cost, fair value	25	[1]	30	[2]
Total financial instruments assets not carried at fair value	34,784		39,684
Assets fair value disclosure financial instruments carried at cost	40,618		47,272
Liabilities:
Other policyholders’ funds	7,642		7,317
Other policyholders' funds fair value disclosure	7,550		7,234
Notes payable	7,675		6,408
Notes payable, fair value disclosure	8,546		6,935
Total financial instrument liabilities not carried at fair value	15,317		13,725
Liabilities fair value disclosure financial instruments carried at cost	16,096		14,169
Government and agencies
Assets:
Securities held to maturity, fixed maturities, amortized cost	22,938		22,241
Held to maturity, fixed maturity securities, fair value	28,502		28,291
Municipalities
Assets:
Securities held to maturity, fixed maturities, amortized cost	370		821
Held to maturity, fixed maturity securities, fair value	490		1,083
Mortgage- and asset-backed securities
Assets:
Securities held to maturity, fixed maturities, amortized cost			16
Held to maturity, fixed maturity securities, fair value			17
Public utilities
Assets:
Securities held to maturity, fixed maturities, amortized cost	46		2,535
Held to maturity, fixed maturity securities, fair value	60		2,954
Sovereign and supranational
Assets:
Securities held to maturity, fixed maturities, amortized cost	559		1,123
Held to maturity, fixed maturity securities, fair value	723		1,320
Banks/financial institutions
Assets:
Securities held to maturity, fixed maturities, amortized cost			916
Held to maturity, fixed maturity securities, fair value			1,018
Other corporate
Assets:
Securities held to maturity, fixed maturities, amortized cost	24		2,433
Held to maturity, fixed maturity securities, fair value	32		2,911
Policy loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	261		250
Equity method investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	795		569
Level 1
Assets:
Held to maturity, fixed maturity securities, fair value	28,248		27,937
Commercial mortgage and other loans, fair value	0		0
Other investments carried at amortized cost, fair value	0	[1]	0	[2]
Assets fair value disclosure financial instruments carried at cost	28,248		27,937
Liabilities:
Other policyholders' funds fair value disclosure	0		0
Notes payable, fair value disclosure	0		0
Liabilities fair value disclosure financial instruments carried at cost	0		0
Level 1 | Government and agencies
Assets:
Held to maturity, fixed maturity securities, fair value	28,248		27,937
Level 1 | Municipalities
Assets:
Held to maturity, fixed maturity securities, fair value	0		0
Level 1 | Mortgage- and asset-backed securities
Assets:
Held to maturity, fixed maturity securities, fair value			0
Level 1 | Public utilities
Assets:
Held to maturity, fixed maturity securities, fair value	0		0
Level 1 | Sovereign and supranational
Assets:
Held to maturity, fixed maturity securities, fair value	0		0
Level 1 | Banks/financial institutions
Assets:
Held to maturity, fixed maturity securities, fair value			0
Level 1 | Other corporate
Assets:
Held to maturity, fixed maturity securities, fair value	0		0
Level 2
Assets:
Held to maturity, fixed maturity securities, fair value	1,559		9,647
Commercial mortgage and other loans, fair value	0		0
Other investments carried at amortized cost, fair value	25	[1]	30	[2]
Assets fair value disclosure financial instruments carried at cost	1,584		9,677
Liabilities:
Other policyholders' funds fair value disclosure	0		0
Notes payable, fair value disclosure	8,264		6,663
Liabilities fair value disclosure financial instruments carried at cost	8,264		6,663
Level 2 | Government and agencies
Assets:
Held to maturity, fixed maturity securities, fair value	254		354
Level 2 | Municipalities
Assets:
Held to maturity, fixed maturity securities, fair value	490		1,083
Level 2 | Mortgage- and asset-backed securities
Assets:
Held to maturity, fixed maturity securities, fair value			7
Level 2 | Public utilities
Assets:
Held to maturity, fixed maturity securities, fair value	60		2,954
Level 2 | Sovereign and supranational
Assets:
Held to maturity, fixed maturity securities, fair value	723		1,320
Level 2 | Banks/financial institutions
Assets:
Held to maturity, fixed maturity securities, fair value			1,018
Level 2 | Other corporate
Assets:
Held to maturity, fixed maturity securities, fair value	32		2,911
Level 3
Assets:
Held to maturity, fixed maturity securities, fair value	0		10
Commercial mortgage and other loans, fair value	10,786		9,648
Other investments carried at amortized cost, fair value	0	[1]	0	[2]
Assets fair value disclosure financial instruments carried at cost	10,786		9,658
Liabilities:
Other policyholders' funds fair value disclosure	7,550		7,234
Notes payable, fair value disclosure	282		272
Liabilities fair value disclosure financial instruments carried at cost	7,832		7,506
Level 3 | Government and agencies
Assets:
Held to maturity, fixed maturity securities, fair value	0		0
Level 3 | Municipalities
Assets:
Held to maturity, fixed maturity securities, fair value	0		0
Level 3 | Mortgage- and asset-backed securities
Assets:
Held to maturity, fixed maturity securities, fair value			10
Level 3 | Public utilities
Assets:
Held to maturity, fixed maturity securities, fair value	0		0
Level 3 | Sovereign and supranational
Assets:
Held to maturity, fixed maturity securities, fair value	0		0
Level 3 | Banks/financial institutions
Assets:
Held to maturity, fixed maturity securities, fair value			0
Level 3 | Other corporate
Assets:
Held to maturity, fixed maturity securities, fair value	$ 0		$ 0

[1] Excludes policy loans of $261 and equity method investments of $795, at carrying value

[2] Excludes policy loans of $250 and equity method investments of $569, at carrying value

XML

FAIR VALUE MEASUREMENTS - Fair Value Hierarchy Levels of Assets by Pricing Source, Securities Carried at Fair Value (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	$ 103,128	$ 91,262
Equity securities	775	802
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	35,539	34,878
Equity securities	608	642
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	66,738	55,697
Equity securities	81	80
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	851	687
Equity securities	86	80
Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	689	722
Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	608	642
Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	81	80
Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Net asset value valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	86	80
Net asset value valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Net asset value valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Net asset value valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	86	80
Government and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	37,195	36,400
Government and agencies | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	35,539	34,878
Government and agencies | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	1,656	1,522
Government and agencies | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Government and agencies | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	37,195	36,400
Government and agencies | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	35,539	34,878
Government and agencies | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	1,656	1,522
Government and agencies | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Municipalities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	2,619	1,847
Municipalities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Municipalities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	2,619	1,847
Municipalities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Municipalities | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	2,619	1,847
Municipalities | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Municipalities | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	2,619	1,847
Municipalities | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Mortgage- and asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	717	410
Mortgage- and asset-backed securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Mortgage- and asset-backed securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	526	232
Mortgage- and asset-backed securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	191	178
Mortgage- and asset-backed securities | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	361	232
Mortgage- and asset-backed securities | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Mortgage- and asset-backed securities | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	361	232
Mortgage- and asset-backed securities | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Mortgage- and asset-backed securities | Consensus pricing valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	356	178
Mortgage- and asset-backed securities | Consensus pricing valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Mortgage- and asset-backed securities | Consensus pricing valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	165	0
Mortgage- and asset-backed securities | Consensus pricing valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	191	178
Public utilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	10,398	6,780
Public utilities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Public utilities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	10,030	6,556
Public utilities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	368	224
Public utilities | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	10,030	6,556
Public utilities | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Public utilities | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	10,030	6,556
Public utilities | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Public utilities | Discounted cash flow technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	368	224
Public utilities | Discounted cash flow technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Public utilities | Discounted cash flow technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Public utilities | Discounted cash flow technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	368	224
Sovereign and supranational
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	1,422	1,042
Sovereign and supranational | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Sovereign and supranational | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	1,422	1,042
Sovereign and supranational | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Sovereign and supranational | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	1,422	1,042
Sovereign and supranational | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Sovereign and supranational | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	1,422	1,042
Sovereign and supranational | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Banks/financial institutions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	11,696	10,287
Banks/financial institutions | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Banks/financial institutions | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	11,672	10,264
Banks/financial institutions | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	24	23
Banks/financial institutions | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	11,672	10,264
Banks/financial institutions | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Banks/financial institutions | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	11,672	10,264
Banks/financial institutions | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Banks/financial institutions | Consensus pricing valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	24	23
Banks/financial institutions | Consensus pricing valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Banks/financial institutions | Consensus pricing valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Banks/financial institutions | Consensus pricing valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	24	23
Other corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	39,081	34,496
Other corporate | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Other corporate | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	38,813	34,234
Other corporate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	268	262
Other corporate | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	38,809	34,234
Other corporate | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Other corporate | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	38,809	34,234
Other corporate | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Other corporate | Discounted cash flow technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	272	262
Other corporate | Discounted cash flow technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	0	0
Other corporate | Discounted cash flow technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	4	0
Other corporate | Discounted cash flow technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, fixed maturity securities	$ 268	$ 262

XML

FAIR VALUE MEASUREMENTS - Fair Value Hierarchy Levels of Assets by Pricing Source, Securities Carried at Amortized Cost (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	$ 29,807	$ 37,594
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	28,248	27,937
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	1,559	9,647
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	10
Government and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	28,502	28,291
Government and agencies | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	28,248	27,937
Government and agencies | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	254	354
Government and agencies | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Government and agencies | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	28,502	28,291
Government and agencies | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	28,248	27,937
Government and agencies | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	254	354
Government and agencies | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Municipalities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	490	1,083
Municipalities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Municipalities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	490	1,083
Municipalities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Municipalities | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	490	1,083
Municipalities | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Municipalities | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	490	1,083
Municipalities | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Mortgage- and asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		17
Mortgage- and asset-backed securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		0
Mortgage- and asset-backed securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		7
Mortgage- and asset-backed securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		10
Mortgage- and asset-backed securities | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		7
Mortgage- and asset-backed securities | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		0
Mortgage- and asset-backed securities | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		7
Mortgage- and asset-backed securities | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		0
Mortgage- and asset-backed securities | Consensus pricing valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		10
Mortgage- and asset-backed securities | Consensus pricing valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		0
Mortgage- and asset-backed securities | Consensus pricing valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		0
Mortgage- and asset-backed securities | Consensus pricing valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		10
Public utilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	60	2,954
Public utilities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Public utilities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	60	2,954
Public utilities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Public utilities | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	60	2,954
Public utilities | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Public utilities | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	60	2,954
Public utilities | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Sovereign and supranational
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	723	1,320
Sovereign and supranational | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Sovereign and supranational | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	723	1,320
Sovereign and supranational | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Sovereign and supranational | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	723	1,320
Sovereign and supranational | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Sovereign and supranational | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	723	1,320
Sovereign and supranational | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Banks/financial institutions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		1,018
Banks/financial institutions | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		0
Banks/financial institutions | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		1,018
Banks/financial institutions | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		0
Banks/financial institutions | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		1,018
Banks/financial institutions | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		0
Banks/financial institutions | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		1,018
Banks/financial institutions | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value		0
Other corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	32	2,911
Other corporate | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Other corporate | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	32	2,911
Other corporate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Other corporate | Third party pricing vendor valuation technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	32	2,911
Other corporate | Third party pricing vendor valuation technique | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	0	0
Other corporate | Third party pricing vendor valuation technique | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	32	2,911
Other corporate | Third party pricing vendor valuation technique | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Held to maturity, fixed maturity securities, fair value	$ 0	$ 0

XML

FAIR VALUE MEASUREMENTS - Changes in Investments and Derivatives Carried at Fair Value Classified as Level 3 (Detail) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019		Sep. 30, 2020		Sep. 30, 2019
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period		$ 695	$ 769		$ 810		$ 648
Net investment gains (losses) included in earnings		23	(84)		(184)		(68)
Unrealized gains (losses) included in other comprehensive income (loss)		44	7		17		25
Purchases		39	33		155		140
Issuances		0	0		0		0
Sales		(5)	0		(6)		(2)
Settlements		(2)	(2)		(7)		(4)
Transfers into Level 3		0	1		24		142
Transfers out of Level 3		0	(1)		(15)		(158)
Balance, end of period		794	723		794		723
Change in unrealized gains (losses) still held		23	(84)		(184)		(68)
Foreign currency swaps
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance, beginning of period	[1]	(168)	94		43		80
Net investment gains (losses) included in earnings	[1]	23	(84)		(184)		(68)
Unrealized gains or losses included in other comprehensive income (loss)	[1]	2	(2)		(2)		(4)
Purchases	[1]	0	0		0		0
Issuances	[1]	0	0		0		0
Sales	[1]	0	0		0		0
Settlements	[1]	0	0		0		0
Transfers into Level 3	[1]	0	0		0		0
Transfers out of Level 3	[1]	0	0		0		0
Balance, end of period	[1]	(143)	8		(143)		8
Changes in unrealized gain (losses) still held	[1]	23	(84)		(184)		(68)
Fixed maturity securities | Mortgage- and asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period		188	183		178		177
Net investment gains (losses) included in earnings		0	0		0		0
Unrealized gains (losses) included in other comprehensive income (loss)		3	0		5		6
Purchases		0	0		0		0
Issuances		0	0		0		0
Sales		0	0		0		0
Settlements		0	0		(1)		0
Transfers into Level 3		0	0		9	[2]	0
Transfers out of Level 3		0	0		0		0
Balance, end of period		191	183		191		183
Change in unrealized gains (losses) still held		0	0		0		0
Fixed maturity securities | Public utilities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period		322	204		224		109
Net investment gains (losses) included in earnings		0	0		0		0
Unrealized gains (losses) included in other comprehensive income (loss)		15	4		6		10
Purchases		33	0		129		0
Issuances		0	0		0		0
Sales		0	0		0		0
Settlements		(2)	(2)		(6)		(4)
Transfers into Level 3		0	0		15	[3]	116	[3]
Transfers out of Level 3		0	0		0		(25)	[3]
Balance, end of period		368	206		368		206
Change in unrealized gains (losses) still held		0	0		0		0
Fixed maturity securities | Banks/financial institutions
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period		24	24		23		23
Net investment gains (losses) included in earnings		0	0		0		0
Unrealized gains (losses) included in other comprehensive income (loss)		0	0		0		1
Purchases		0	0		1		0
Issuances		0	0		0		0
Sales		0	0		0		0
Settlements		0	0		0		0
Transfers into Level 3		0	0		0		0
Transfers out of Level 3		0	(1)	[3]	0		(1)
Balance, end of period		24	23		24		23
Change in unrealized gains (losses) still held		0	0		0		0
Fixed maturity securities | Other corporate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period		243	199		262		213
Net investment gains (losses) included in earnings		0	0		0		0
Unrealized gains (losses) included in other comprehensive income (loss)		24	5		8		12
Purchases		1	19		13		107
Issuances		0	0		0		0
Sales		0	0		0		(2)
Settlements		0	0		0		0
Transfers into Level 3		0	1	[3]	0		26	[3]
Transfers out of Level 3		0	0		(15)	[3]	(132)	[3],[4]
Balance, end of period		268	224		268		224
Change in unrealized gains (losses) still held		0	0		0		0
Equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period		86	65		80		46
Net investment gains (losses) included in earnings		0	0		0		0
Unrealized gains (losses) included in other comprehensive income (loss)		0	0		0		0
Purchases		5	14		12		33
Issuances		0	0		0		0
Sales		(5)	0		(6)		0
Settlements		0	0		0		0
Transfers into Level 3		0	0		0		0
Transfers out of Level 3		0	0		0		0
Balance, end of period		86	79		86		79
Change in unrealized gains (losses) still held		$ 0	$ 0		$ 0		$ 0

[1] Derivative assets and liabilities are presented net

[2] Transfer due to reclassification of level 3 securities from HTM to AFS

[3] Transfer due to sector classification change

[4] Transfer due to availability of observable market inputs

XML

FAIR VALUE MEASUREMENTS - Fair Value Measurement Inputs and Valuation Techniques (Details) $ in Millions		Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		$ 103,128	$ 91,262
Equity securities		775	802
Asset derivatives		439	482
Liability derivatives		625	586
Assets, fair value		110,728	98,070
Liabilities, fair value		625	586
Level 3
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		851	687
Equity securities		86	80
Asset derivatives		97	169
Assets, fair value		1,034	936
Liabilities, fair value		240	126
Net asset value valuation technique
Fair Value Measurement Inputs and Valuation Techniques
Equity securities		86	80
Net asset value valuation technique | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Equity securities		86	80
Foreign currency swaps
Fair Value Measurement Inputs and Valuation Techniques
Asset derivatives		150	241
Liability derivatives		289	204
Foreign currency swaps | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Asset derivatives		97	169
Liability derivatives		240	126
Foreign currency swaps | Fair Value, Unobservable Input, Interest Rates (USD), Interest Rates (JPY) and CDS Spreads | Discounted cash flow technique | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Asset derivatives		27	106
Liability derivatives		197	118
Foreign currency swaps | Fair Value, Unobservable Input, Interest Rates (USD) and Interest Rates (JPY) | Discounted cash flow technique | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Asset derivatives		70	63
Liability derivatives		$ 43	$ 8
Foreign currency swaps | Credit Spread | Fair Value, Unobservable Input, Interest Rates (USD), Interest Rates (JPY) and CDS Spreads | Lower Limit | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Derivative asset, measurement input		0.0023	0.0023
Derivative liability, measurement input		0.0041	0.0041
Foreign currency swaps | Credit Spread | Fair Value, Unobservable Input, Interest Rates (USD), Interest Rates (JPY) and CDS Spreads | Upper Limit | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Derivative asset, measurement input		0.0140	0.0140
Derivative liability, measurement input		0.0140	0.0140
Dollar-denominated
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		$ 40,532	$ 38,281
Equity securities		$ 145	$ 144
Dollar-denominated | Foreign currency swaps | Discount Rate | Fair Value, Unobservable Input, Interest Rates (USD), Interest Rates (JPY) and CDS Spreads | Lower Limit | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Derivative asset, measurement input	[1]	0.0071	0.0189
Derivative liability, measurement input	[1]	0.0071	0.0189
Dollar-denominated | Foreign currency swaps | Discount Rate | Fair Value, Unobservable Input, Interest Rates (USD), Interest Rates (JPY) and CDS Spreads | Upper Limit | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Derivative asset, measurement input	[1]	0.0112	0.0209
Derivative liability, measurement input	[1]	0.0112	0.0209
Dollar-denominated | Foreign currency swaps | Discount Rate | Fair Value, Unobservable Input, Interest Rates (USD) and Interest Rates (JPY) | Lower Limit | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Derivative asset, measurement input	[1]	0.0071	0.0189
Derivative liability, measurement input	[1]	0.0071	0.0189
Dollar-denominated | Foreign currency swaps | Discount Rate | Fair Value, Unobservable Input, Interest Rates (USD) and Interest Rates (JPY) | Upper Limit | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Derivative asset, measurement input	[1]	0.0112	0.0209
Derivative liability, measurement input	[1]	0.0112	0.0209
Yen-denominated
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		$ 62,596	$ 52,981
Equity securities		$ 630	$ 658
Yen-denominated | Foreign currency swaps | Discount Rate | Fair Value, Unobservable Input, Interest Rates (USD), Interest Rates (JPY) and CDS Spreads | Lower Limit | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Derivative asset, measurement input	[2]	0.0003	0.0012
Derivative liability, measurement input	[2]	0.0003	0.0012
Yen-denominated | Foreign currency swaps | Discount Rate | Fair Value, Unobservable Input, Interest Rates (USD), Interest Rates (JPY) and CDS Spreads | Upper Limit | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Derivative asset, measurement input	[2]	0.0035	0.0043
Derivative liability, measurement input	[2]	0.0035	0.0043
Yen-denominated | Foreign currency swaps | Discount Rate | Fair Value, Unobservable Input, Interest Rates (USD) and Interest Rates (JPY) | Lower Limit | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Derivative asset, measurement input	[2]	0.0003	0.0012
Derivative liability, measurement input	[2]	0.0003	0.0012
Yen-denominated | Foreign currency swaps | Discount Rate | Fair Value, Unobservable Input, Interest Rates (USD) and Interest Rates (JPY) | Upper Limit | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Derivative asset, measurement input	[2]	0.0035	0.0043
Derivative liability, measurement input	[2]	0.0035	0.0043
Mortgage- and asset-backed securities
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		$ 717	$ 410
Mortgage- and asset-backed securities | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		191	178
Mortgage- and asset-backed securities | Consensus pricing valuation technique
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		356	178
Mortgage- and asset-backed securities | Consensus pricing valuation technique | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		191	178
Mortgage- and asset-backed securities | Dollar-denominated
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		353	156
Mortgage- and asset-backed securities | Yen-denominated
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		364	254
Banks/financial institutions
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		11,696	10,287
Banks/financial institutions | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		24	23
Banks/financial institutions | Consensus pricing valuation technique
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		24	23
Banks/financial institutions | Consensus pricing valuation technique | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		24	23
Banks/financial institutions | Dollar-denominated
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		3,688	3,521
Banks/financial institutions | Yen-denominated
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		8,008	6,766
Public utilities
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		10,398	6,780
Public utilities | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		368	224
Public utilities | Discounted cash flow technique
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		368	224
Public utilities | Discounted cash flow technique | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		368	224
Public utilities | Dollar-denominated
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		4,854	4,519
Public utilities | Yen-denominated
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		5,544	2,261
Other corporate
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		39,081	34,496
Other corporate | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		268	262
Other corporate | Discounted cash flow technique
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		272	262
Other corporate | Discounted cash flow technique | Level 3
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		268	262
Other corporate | Dollar-denominated
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		29,749	28,253
Other corporate | Yen-denominated
Fair Value Measurement Inputs and Valuation Techniques
Available for sale, fixed maturity securities		$ 9,332	$ 6,243

[1] Inputs derived from U.S. long-term rates to accommodate long maturity nature of the Company's swaps

[2] Inputs derived from Japan long-term rates to accommodate long maturity nature of the Company's swaps

XML

POLICY LIABILITIES - Changes in Liability for Unpaid Policy Claims (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Liability for Unpaid Claims and Claims Expenses
Net balance, beginning of period			$ 4,659
Less claims paid during the period on claims incurred during:
Net balance, end of period	$ 4,976		4,976
Total liability for unpaid policy claims	4,976	$ 4,741	4,976	$ 4,741
Health insurance
Liability for Unpaid Claims and Claims Expenses
Unpaid supplemental health claims, beginning of period	4,041	4,024	3,968	3,952
Less reinsurance recoverables	37	31	31	28
Net balance, beginning of period	4,004	3,993	3,937	3,924
Add claims incurred during the period related to:
Current year	1,780	1,806	5,354	5,415
Prior years	(105)	(134)	(408)	(437)
Total incurred	1,675	1,672	4,946	4,978
Less claims paid during the period on claims incurred during:
Current year	1,295	1,421	2,971	3,150
Prior years	249	220	1,811	1,794
Total paid	1,544	1,641	4,782	4,944
Effect of foreign exchange rate changes on unpaid claims	42	(3)	76	63
Net balance, end of period	4,177	4,021	4,177	4,021
Add reinsurance recoverables	40	31	40	31
Total liability for unpaid policy claims	4,217	4,052	4,217	4,052
Life insurance
Less claims paid during the period on claims incurred during:
Total liability for unpaid policy claims	$ 759	$ 689	$ 759	$ 689

XML

POLICY LIABILITIES - Additional Information (Details) - Health insurance - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Liability for Future Policy Benefit, by Product Segment [Line Items]
Prior years claims and claims adjustment expense	$ (105)	$ (134)	$ (408)	$ (437)
Aflac Japan
Liability for Future Policy Benefit, by Product Segment [Line Items]
Prior years claims and claims adjustment expense			$ 264
Percentage of total prior year claims and claims adjustment expense			65.00%
Liability for unpaid claims and claims adjustment expense, foreign currency translation gain (loss), prior year claims adjustment expense			$ 3
Prior year claims and claims adjustment expense excluding effect of foreign currency			$ 261
Percentage of total prior year claims and claims adjustment expense excluding effect of foreign currency			64.00%

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REINSURANCE - Additional Information (Details) $ in Millions, ¥ in Billions	9 Months Ended
	Sep. 30, 2020 JPY (¥)	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)
Effects of Reinsurance [Line Items]
Percent change in spot yen/dollar exchange rate		3.60%
Percent change in ceded reserves		3.50%
Aflac Japan
Effects of Reinsurance [Line Items]
Committed reinsurance facility | ¥	¥ 120
Aflac Japan | Closed Block
Effects of Reinsurance [Line Items]
Reinsurance deferred profit liability		$ 1,000		$ 1,000
Reinsurance recoverable		$ 1,000	$ 970

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REINSURANCE - Effect of Reinsurance on Premiums and Benefits and Claims (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Effects of Reinsurance [Line Items]
Direct premium income	$ 4,711	$ 4,823	$ 14,236	$ 14,365
Net premium income	4,623	4,736	13,969	14,109
Direct benefits and claims	3,051	3,106	9,054	9,185
Benefits and claims, net	2,985	3,027	8,822	8,958
All other
Effects of Reinsurance [Line Items]
Ceded premiums	(22)	(17)	(69)	(50)
Assumed premiums earned	1	0	5	4
Ceded benefits and claims	(10)	(18)	(54)	(41)
Assumed benefits and claims from other companies	0	1	3	1
Aflac Japan
Effects of Reinsurance [Line Items]
Net premium income	3,168	3,241	9,476	9,593
Aflac Japan | Closed Block
Effects of Reinsurance [Line Items]
Ceded premiums	(116)	(121)	(349)	(361)
Assumed premiums earned	49	51	146	151
Ceded benefits and claims	(103)	(111)	(314)	(331)
Assumed benefits and claims from other companies	47	49	133	144
Intercompany eliminations
Effects of Reinsurance [Line Items]
Ceded benefits and claims	10	11	29	31
Assumed benefits and claims from other companies	$ (10)	$ (11)	$ (29)	$ (31)

XML

NOTES PAYABLE AND LEASE OBLIGATIONS - Additional Information (Details) $ in Millions, ¥ in Billions	1 Months Ended
	Apr. 30, 2020 USD ($)	Jan. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2020 JPY (¥)	Mar. 31, 2020 JPY (¥) series	Dec. 31, 2019
Debt Instrument [Line Items]
Number of Series of Senior Notes Issued Through a U.S. Public Debt Offering | series					4
Lines of credit
Debt Instrument [Line Items]
Debt instrument, debt default, amount | $			$ 0
3.60% senior notes due April 2030
Debt Instrument [Line Items]
Debt instrument, principal amount | $	$ 1,000		$ 1,000
Debt instrument, interest rate	3.60%		3.60%	3.60%
Debt instrument, redemption, description	These notes are redeemable at the Parent Company's option in whole at any time or in part from time to time at a redemption price equal to the greater of: (i) the aggregate principal amount of the notes to be redeemed or (ii) the amount equal to the sum of the present values of the remaining scheduled payments for principal of and interest on the notes to be redeemed, not including any portion of the payments of interest accrued as of such redemption date, discounted to such redemption date on a semiannual basis at the yield to maturity for a U.S. Treasury security with a maturity comparable to the remaining term of the notes, plus 45 basis points, plus in each case, accrued and unpaid interest on the principal amount of the notes to be redeemed to, but excluding, such redemption date.
Notes payable
Debt Instrument [Line Items]
Debt instrument, debt default, amount | $			$ 0
Senior notes
Debt Instrument [Line Items]
Debt instrument, principal amount					¥ 57.0
.300% senior notes due September 2025
Debt Instrument [Line Items]
Debt instrument, principal amount				¥ 12.4	¥ 12.4
Debt instrument, interest rate			0.30%	0.30%	0.30%
.550% senior notes due March 2030
Debt Instrument [Line Items]
Debt instrument, principal amount				¥ 13.3	¥ 13.3
Debt instrument, interest rate			0.55%	0.55%	0.55%
.750% senior notes due March 2032
Debt Instrument [Line Items]
Debt instrument, principal amount				¥ 20.7	¥ 20.7
Debt instrument, interest rate			0.75%	0.75%	0.75%
.830% senior notes due March 2035
Debt Instrument [Line Items]
Debt instrument, principal amount				¥ 10.6	¥ 10.6
Debt instrument, interest rate			0.83%	0.83%	0.83%
4.00% senior notes paid January 2020
Debt Instrument [Line Items]
Debt instrument, interest rate		4.00%				4.00%
Repayments of debt | $		$ 350

XML

NOTES PAYABLE AND LEASE OBLIGATIONS - Summary of Notes Payable (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Notes payable and lease obligations	$ 7,825	$ 6,569
Finance lease obligations	11	12
Operating lease obligations	139	149
4.00% senior notes paid January 2020
Debt Instrument [Line Items]
Notes payable and lease obligations	0	348
3.625% senior notes due June 2023
Debt Instrument [Line Items]
Notes payable and lease obligations	698	698
3.625% senior notes due November 2024
Debt Instrument [Line Items]
Notes payable and lease obligations	747	747
3.25% senior notes due March 2025
Debt Instrument [Line Items]
Notes payable and lease obligations	447	448
2.875% senior notes due October 2026
Debt Instrument [Line Items]
Notes payable and lease obligations	298	298
3.60% senior notes due April 2030
Debt Instrument [Line Items]
Notes payable and lease obligations	990	0
6.90% senior notes due December 2039
Debt Instrument [Line Items]
Notes payable and lease obligations	221	220
6.45% senior notes due August 2040
Debt Instrument [Line Items]
Notes payable and lease obligations	254	254
4.00% senior notes due October 2046
Debt Instrument [Line Items]
Notes payable and lease obligations	394	394
4.750% senior notes due January 2049
Debt Instrument [Line Items]
Notes payable and lease obligations	541	541
.300% senior notes due September 2025
Debt Instrument [Line Items]
Notes payable and lease obligations	117	0
.932% senior notes due January 2027
Debt Instrument [Line Items]
Notes payable and lease obligations	565	545
.500% senior noted due December 2029
Debt Instrument [Line Items]
Notes payable and lease obligations	119	114
.550% senior notes due March 2030
Debt Instrument [Line Items]
Notes payable and lease obligations	125	0
1.159% senior notes due October 2030
Debt Instrument [Line Items]
Notes payable and lease obligations	275	266
.843% senior notes due December 2031
Debt Instrument [Line Items]
Notes payable and lease obligations	87	84
.750% senior notes due March 2032
Debt Instrument [Line Items]
Notes payable and lease obligations	194	0
1.488% senior notes due October 2033
Debt Instrument [Line Items]
Notes payable and lease obligations	143	138
.934% senior notes due December 2034
Debt Instrument [Line Items]
Notes payable and lease obligations	92	88
.830% senior notes due March 2035
Debt Instrument [Line Items]
Notes payable and lease obligations	99	0
1.750% senior notes due October 2038
Debt Instrument [Line Items]
Notes payable and lease obligations	83	81
1.122% senior notes due December 2039
Debt Instrument [Line Items]
Notes payable and lease obligations	59	57
2.108% subordinated notes due October 2047
Debt Instrument [Line Items]
Notes payable and lease obligations	563	543
.963% subordinate bond due April 2049
Debt Instrument [Line Items]
Notes payable and lease obligations	282	272
Yen-denominated loan variable interest rate due September 2026
Debt Instrument [Line Items]
Notes payable and lease obligations	47	45
Yen-denominated loan variable interest rate due September 2029
Debt Instrument [Line Items]
Notes payable and lease obligations	$ 235	$ 227

XML

NOTES PAYABLE AND LEASE OBLIGATIONS - Summary of Notes Payable (Parenthetical) (Details) ¥ in Billions, $ in Billions	Sep. 30, 2020 USD ($)	Sep. 30, 2020 JPY (¥)	Apr. 30, 2020 USD ($)	Mar. 31, 2020 JPY (¥)	Jan. 31, 2020	Dec. 31, 2019 JPY (¥)
4.00% senior notes paid January 2020
Debt Instrument [Line Items]
Debt instrument, interest rate					4.00%	4.00%
3.625% senior notes due June 2023
Debt Instrument [Line Items]
Debt instrument, interest rate	3.625%	3.625%				3.625%
3.625% senior notes due November 2024
Debt Instrument [Line Items]
Debt instrument, interest rate	3.625%	3.625%				3.625%
3.25% senior notes due March 2025
Debt Instrument [Line Items]
Debt instrument, interest rate	3.25%	3.25%				3.25%
2.875% senior notes due October 2026
Debt Instrument [Line Items]
Debt instrument, interest rate	2.875%	2.875%				2.875%
3.60% senior notes due April 2030
Debt Instrument [Line Items]
Debt instrument, interest rate	3.60%	3.60%	3.60%
Debt instrument, principal amount | $	$ 1.0		$ 1.0
6.90% senior notes due December 2039
Debt Instrument [Line Items]
Debt instrument, interest rate	6.90%	6.90%				6.90%
6.45% senior notes due August 2040
Debt Instrument [Line Items]
Debt instrument, interest rate	6.45%	6.45%				6.45%
4.00% senior notes due October 2046
Debt Instrument [Line Items]
Debt instrument, interest rate	4.00%	4.00%				4.00%
4.750% senior notes due January 2049
Debt Instrument [Line Items]
Debt instrument, interest rate	4.75%	4.75%				4.75%
.300% senior notes due September 2025
Debt Instrument [Line Items]
Debt instrument, interest rate	0.30%	0.30%		0.30%
Debt instrument, principal amount		¥ 12.4		¥ 12.4
.932% senior notes due January 2027
Debt Instrument [Line Items]
Debt instrument, interest rate	0.932%	0.932%				0.932%
Debt instrument, principal amount		¥ 60.0				¥ 60.0
.500% senior noted due December 2029
Debt Instrument [Line Items]
Debt instrument, interest rate	0.50%	0.50%				0.50%
Debt instrument, principal amount		¥ 12.6				¥ 12.6
.550% senior notes due March 2030
Debt Instrument [Line Items]
Debt instrument, interest rate	0.55%	0.55%		0.55%
Debt instrument, principal amount		¥ 13.3		¥ 13.3
1.159% senior notes due October 2030
Debt Instrument [Line Items]
Debt instrument, interest rate	1.159%	1.159%				1.159%
Debt instrument, principal amount		¥ 29.3				¥ 29.3
.843% senior notes due December 2031
Debt Instrument [Line Items]
Debt instrument, interest rate	0.843%	0.843%				0.843%
Debt instrument, principal amount		¥ 9.3				¥ 9.3
.750% senior notes due March 2032
Debt Instrument [Line Items]
Debt instrument, interest rate	0.75%	0.75%		0.75%
Debt instrument, principal amount		¥ 20.7		¥ 20.7
1.488% senior notes due October 2033
Debt Instrument [Line Items]
Debt instrument, interest rate	1.488%	1.488%				1.488%
Debt instrument, principal amount		¥ 15.2				¥ 15.2
.934% senior notes due December 2034
Debt Instrument [Line Items]
Debt instrument, interest rate	0.934%	0.934%				0.934%
Debt instrument, principal amount		¥ 9.8				¥ 9.8
.830% senior notes due March 2035
Debt Instrument [Line Items]
Debt instrument, interest rate	0.83%	0.83%		0.83%
Debt instrument, principal amount		¥ 10.6		¥ 10.6
1.750% senior notes due October 2038
Debt Instrument [Line Items]
Debt instrument, interest rate	1.75%	1.75%				1.75%
Debt instrument, principal amount		¥ 8.9				¥ 8.9
1.122% senior notes due December 2039
Debt Instrument [Line Items]
Debt instrument, interest rate	1.122%	1.122%				1.122%
Debt instrument, principal amount		¥ 6.3				¥ 6.3
2.108% subordinated notes due October 2047
Debt Instrument [Line Items]
Debt instrument, interest rate	2.108%	2.108%				2.108%
Debt instrument, principal amount		¥ 60.0				¥ 60.0
.963% subordinate bond due April 2049
Debt Instrument [Line Items]
Debt instrument, interest rate	0.963%	0.963%				0.963%
Debt instrument, principal amount		¥ 30.0				¥ 30.0
Yen-denominated loan variable interest rate due September 2026
Debt Instrument [Line Items]
Debt instrument, interest rate	0.42%	0.42%				0.32%
Debt instrument, principal amount		¥ 5.0				¥ 5.0
Yen-denominated loan variable interest rate due September 2029
Debt Instrument [Line Items]
Debt instrument, interest rate	0.57%	0.57%				0.47%
Debt instrument, principal amount		¥ 25.0				¥ 25.0

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NOTES PAYABLE AND LEASE OBLIGATIONS - Summary of Lines of Credit (Details) - 9 months ended Sep. 30, 2020 ¥ in Millions, $ in Millions	JPY (¥)	USD ($)
$100 million line of credit
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	The rate quoted by the bank and agreed upon at the time of borrowing
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity		$ 100.0
Line of credit facility, amount outstanding		0.0
100.0 billion yen line of credit
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	A rate per annum equal to (a) Tokyo interbank market rate (TIBOR) plus, the alternative applicable TIBOR margin during the availability period from the closing date to the commitment termination date or (b) the TIBOR rate offered by the agent to major banks in yen for the applicable period plus, the applicable alternative TIBOR margin during the term out period
Line of credit facility term	5 years
Line of credit facility, maximum borrowing capacity | ¥	¥ 100,000
Line of credit facility, amount outstanding | ¥	¥ 0
$1 billion line of credit
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	A rate per annum equal to, at the Company's option, either, (a) LIBOR adjusted for certain costs or (b) a base rate determined by reference to the highest of (1) the federal funds rate plus 1/2 of 1%, (2) the rate of interest for such day announced by Mizuho Bank, Ltd. as its prime rate, or (3) the eurocurrency rate for an interest period of one month plus 1.00%, in each case plus an applicable margin
Line of credit facility term	5 years
Line of credit facility, maximum borrowing capacity		1,000.0
Line of credit facility, amount outstanding		0.0
$50 million line of credit
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	A rate per annum equal to, at the Parent Company's option, either (a) a eurocurrency rate determined by reference to the agent's LIBOR for the interest period relevant to such borrowing or (b) the base rate determined by reference to the greater of (i) the prime rate as determined by the agent, and (ii) the sum of 0.50% and the federal funds rate for such day
Line of credit facility, maximum borrowing capacity		50.0
Line of credit facility, amount outstanding		0.0
$250 million line of credit
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	USD three-month LIBOR plus 75 basis points per annum
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity		250.0
Line of credit facility, amount outstanding		0.0
Debt instrument, term	3 months
50.0 billion yen line of credit expiring April 2021
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	Three-month TIBOR plus 70 basis points per annum
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity | ¥	¥ 50,000
Line of credit facility, amount outstanding | ¥	¥ 0
Debt instrument, term	3 months
50.0 billion yen line of credit expiring November 2020
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	Three-month TIBOR plus 70 basis points per annum
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity | ¥	¥ 50,000
Line of credit facility, amount outstanding | ¥	¥ 0
Debt instrument, term	3 months
$25 million line of credit
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	USD three-month LIBOR plus 75 basis points per annum
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity		25.0
Line of credit facility, amount outstanding		0.0
Debt instrument, term	3 months
$15 million line of credit
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	USD three-month LIBOR plus 75 basis points per annum
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity		15.0
Line of credit facility, amount outstanding		0.0
Debt instrument, term	3 months
$300 thousand line of credit
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	USD three-month LIBOR plus 75 basis points per annum
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity		0.3
Line of credit facility, amount outstanding		$ 0.0
Debt instrument, term	3 months
500 million yen line of credit
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	A rate per annum equal to the short-term prime lending rates of banks appearing on the website for the Bank of Japan on the first day of the applicable period
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity | ¥	¥ 500
Line of credit facility, amount outstanding | ¥	¥ 350
Lower Limit | 100.0 billion yen line of credit
Line of Credit Facility [Line Items]
Line of credit facility, commitment fee percentage	0.30%
Lower Limit | $1 billion line of credit
Line of Credit Facility [Line Items]
Line of credit facility, commitment fee percentage	0.085%
Upper Limit | $100 million line of credit
Line of Credit Facility [Line Items]
Debt instrument, term	3 months
Upper Limit | 100.0 billion yen line of credit
Line of Credit Facility [Line Items]
Line of credit facility, commitment fee percentage	0.50%
Upper Limit | $1 billion line of credit
Line of Credit Facility [Line Items]
Line of credit facility, commitment fee percentage	0.225%
Upper Limit | $50 million line of credit
Line of Credit Facility [Line Items]
Debt instrument, term	3 months

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INCOME TAXES - Additional Information (Details) - USD ($) $ in Billions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Blended statutory income tax rate	(112.90%)	25.00%	(30.00%)	25.50%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	$ (1.4)

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SHAREHOLDERS' EQUITY - Reconciliation of Number of Shares of Common Stock (Detail) - shares shares in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Common Stock Issued [Roll Forward]
Balance, beginning of period	1,349,309	1,347,540
Exercise of stock options and issuance of restricted shares	1,546	1,650
Balance, end of period	1,350,855	1,349,190
Treasury Stock [Roll Forward]
Balance, beginning of period	622,516	592,254
Balance, end of period	647,281	614,060
Shares outstanding, end of period	703,574	735,130
Treasury Stock
Treasury Stock [Roll Forward]
Stock acquired under share repurchase program, shares	26,108	23,126
Other purchases	541	589
Shares issued to AFL Stock Plan	(1,584)	(1,232)
Exercise of stock options	(49)	(382)
Other dispositions	(251)	(295)

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SHAREHOLDERS' EQUITY - Anti-Dilutive Share-Based Awards Excluded from Calculation of Diluted Earnings Per Share (Detail) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Stockholders' Equity Note [Abstract]
Anti-dilutive share-based awards	592	1	857	8

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SHAREHOLDERS' EQUITY - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Aug. 31, 2020
Stockholders Equity Note [Line Items]
Common stock, share repurchase, dollar amount	$ 1,037	$ 1,157
Remaining common stock available for purchase under share repurchase authorizations	110.9
Share Repurchase Program
Stockholders Equity Note [Line Items]
Stock acquired under share repurchase program, shares	26.1	23.1
Common stock, share repurchase, dollar amount	$ 1,000	$ 1,200
Share Repurchase Authorization 2020
Stockholders Equity Note [Line Items]
Remaining common stock available for purchase under share repurchase authorizations			100.0

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SHAREHOLDERS' EQUITY - Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period	$ 6,750	$ 6,364	$ 6,615	$ 2,151
Other comprehensive income (loss) before reclassifications net of tax	1,170	852	333	5,092
Amounts reclassified from accumulated other comprehensive income net of tax	(3)	35	121	8
Other comprehensive income (loss), net of tax	1,167	887	454	5,100
Balance, end of period	7,917	7,251	7,917	7,251
Unrealized foreign currency translation gains (losses)
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period	(1,469)	(1,455)	(1,623)	(1,847)
Other comprehensive income (loss) before reclassifications net of tax	179	(24)	333	368
Amounts reclassified from accumulated other comprehensive income net of tax	0	0	0	0
Other comprehensive income (loss), net of tax	179	(24)	333	368
Balance, end of period	(1,290)	(1,479)	(1,290)	(1,479)
Unrealized gains (losses) on investment securities
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period	8,532	8,055	8,548	4,234
Other comprehensive income (loss) before reclassifications net of tax	995	884	20	4,737
Amounts reclassified from accumulated other comprehensive income net of tax	(7)	31	104	(1)
Other comprehensive income (loss), net of tax	988	915	124	4,736
Balance, end of period	9,520	8,970	9,520	8,970
Unrealized gains (losses) on derivatives
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period	(36)	(27)	(33)	(24)
Other comprehensive income (loss) before reclassifications net of tax	1	(6)	(2)	(9)
Amounts reclassified from accumulated other comprehensive income net of tax	0	0	0	0
Other comprehensive income (loss), net of tax	1	(6)	(2)	(9)
Balance, end of period	(35)	(33)	(35)	(33)
Pension liability adjustment
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period	(277)	(209)	(277)	(212)
Other comprehensive income (loss) before reclassifications net of tax	(5)	(2)	(18)	(4)
Amounts reclassified from accumulated other comprehensive income net of tax	4	4	17	9
Other comprehensive income (loss), net of tax	(1)	2	(1)	5
Balance, end of period	$ (278)	$ (207)	(278)	$ (207)
Cumulative effect, period of adoption, adjustment | Accounting Standards Update 2019-04
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period			848
Cumulative effect, period of adoption, adjustment | Unrealized foreign currency translation gains (losses) | Accounting Standards Update 2019-04
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period			0
Cumulative effect, period of adoption, adjustment | Unrealized gains (losses) on investment securities | Accounting Standards Update 2019-04
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period			848
Cumulative effect, period of adoption, adjustment | Unrealized gains (losses) on derivatives | Accounting Standards Update 2019-04
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period			0
Cumulative effect, period of adoption, adjustment | Pension liability adjustment | Accounting Standards Update 2019-04
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period			0
Cumulative effect, period of adoption, adjusted balance
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period			7,463
Cumulative effect, period of adoption, adjusted balance | Unrealized foreign currency translation gains (losses)
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period			(1,623)
Cumulative effect, period of adoption, adjusted balance | Unrealized gains (losses) on investment securities
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period			9,396
Cumulative effect, period of adoption, adjusted balance | Unrealized gains (losses) on derivatives
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period			(33)
Cumulative effect, period of adoption, adjusted balance | Pension liability adjustment
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period			$ (277)

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SHAREHOLDERS' EQUITY - Reclassifications Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions		3 Months Ended								9 Months Ended
		Sep. 30, 2020		Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019		Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020		Sep. 30, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax (expense) or benefit		$ 1,303				$ (259)				$ 884		$ (865)
Net of tax		$ 2,456		$ 805	$ 566	$ 777		$ 817	$ 928	$ 3,826		$ 2,523
Blended statutory income tax rate		(112.90%)				25.00%				(30.00%)		25.50%
U.S. federal statutory income tax rate		21.00%								21.00%
Net investment gains (losses)		$ (13)				$ 41				$ 132		$ (1)
Reclassification Out Of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax		3				(35)				(121)		(8)
Reclassification Out Of Accumulated Other Comprehensive Income | Unrealized gains (losses) on available-for-sale securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax (expense) or benefit		(6)	[1]			10	[2]			28	[3]	0	[4]
Net of tax		7				(31)				(104)		1
Net investment gains (losses)		13				(41)				(132)		1
Reclassification Out Of Accumulated Other Comprehensive Income | Pension liability adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Acquisition and operating expenses, actuarial gains (losses)	[5]	(7)				(5)				(22)		(12)
Acquisition and operating expenses, prior service (cost) credit	[5]	0				0				0		0
Income tax (expense) or benefit		3	[1]			1	[2]			5	[3]	3	[4]
Net of tax		$ (4)				$ (4)				$ (17)		$ (9)

[1] Based on 21% tax rate, with a cumulative adjustment to the first six months of 2020 due to the effects of Final and Proposed Regulations released on September 29, 2020. See Note 9 of the Notes to the Consolidated Financial Statements.

[2] Based on 25% blended tax rate

[3] Based on 21% tax rate

[4] Based on 26% blended tax rate

[5] These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 12 for additional details).

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SHARE-BASED COMPENSATION - Additional Information (Detail) - USD ($) shares in Thousands, $ in Millions	1 Months Ended	9 Months Ended
	Feb. 29, 2020	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	[1]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from stock options exercised		$ 9	$ 36
Tax benefit from exercise of stock options		$ 19	$ 26
Long-Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, maximum number of shares issuable		75,000
Share-based compensation arrangement by share-based payment award, maximum number of shares issuable other than options and stock appreciation rights		38,000
Shares available for future grants under the long-term incentive plan		37,900
Long-term incentive plan awards, term (in years)		10 years
Long-term incentive plan awards, vesting period		3 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost not yet recognized, restricted stock awards		$ 46
Share-based compensation arrangement by share-based payment award, equity instruments other than options, nonvested, number, shares		2,595		2,715
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition		1 year 8 months 12 days
Restricted stock awards, grants in period		1,494
Performance based Vesting Condition | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost not yet recognized, restricted stock awards		$ 20
Share-based compensation arrangement by share-based payment award, equity instruments other than options, nonvested, number, shares		1,000
Restricted stock awards, grants in period	409

[1] The balance has been adjusted to include dividends

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SHARE-BASED COMPENSATION - Stock Options Outstanding and Exercisable (Detail) $ / shares in Units, shares in Thousands, $ in Millions	9 Months Ended
	Sep. 30, 2020 USD ($) $ / shares shares
Share-based Payment Arrangement [Abstract]
Options Outstanding - Stock Option Shares | shares	3,288
Options Outstanding - Weighted-Average Remaining Term (Yrs)	4 years
Options Outstanding - Aggregate Intrinsic Value | $	$ 21
Options Outstanding - Weighted-Average Exercise Price Per Share | $ / shares	$ 30.18
Options Exercisable - Stock Option Shares | shares	3,229
Options Exercisable - Weighted-Average Remaining Term (Yrs.)	3 years 10 months 24 days
Options Exercisable - Aggregate Intrinsic Value | $	$ 21
Options Exercisable - Weighted-Average Exercise Price Per Share | $ / shares	$ 30.08

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SHARE-BASED COMPENSATION - Restricted Stock Activity (Details) - Restricted Stock shares in Thousands	9 Months Ended
	Sep. 30, 2020 $ / shares shares
Shares
Beginning Balance | shares	2,715	[1]
Granted | shares	1,494
Canceled | shares	(58)
Vested | shares	(1,556)
Ending Balance | shares	2,595
Weighted-Average Grant-Date Fair Value Per Share
Beginning Balance | $ / shares	$ 43.74
Granted | $ / shares	45.97
Cancelled | $ / shares	49.70
Vested | $ / shares	35.20
Ending Balance | $ / shares	$ 48.69

[1] The balance has been adjusted to include dividends

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BENEFIT PLANS - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2013
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Amount of years active employees have left to meet rule of 80 in order to be eligible for postretirement medical benefits					5 years
Amount of years left to meet 15 year service requirement for active employees age 55 or older to be eligible for postretirement medical benefits					5 years
Net periodic (benefit) cost, excluding service cost	$ 6	$ 6	$ 18	$ 18
Lower Limit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Health care plan, retirement age and years of service combined years for eligibility (rule of 80)					80 years
Health care plan, retirement age for eligibility, (in years)					55 years
Health care plan, number of years of service for eligibility					15 years
Japan | Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Employer contributions			28
U.S. | Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Employer contributions			$ 0

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BENEFIT PLANS - Net Periodic (Benefit) Cost Included in Acquisition and Operating Expenses (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Other Postretirement Benefits Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	0	0	1	1
Expected return on plan assets	0	0	0	0
Amortization of net actuarial loss	0	1	1	1
Net periodic (benefit) cost	0	1	2	2
Japan | Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	6	6	18	16
Interest cost	1	1	3	4
Expected return on plan assets	(2)	(2)	(6)	(5)
Amortization of net actuarial loss	1	1	3	3
Net periodic (benefit) cost	6	6	18	18
U.S. | Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	7	5	21	17
Interest cost	9	10	25	28
Expected return on plan assets	(9)	(8)	(27)	(22)
Amortization of net actuarial loss	6	3	18	8
Net periodic (benefit) cost	$ 13	$ 10	$ 37	$ 31

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COMMITMENTS AND CONTINGENT LIABILITIES - Additional Information (Details) $ in Millions, ¥ in Billions	3 Months Ended
	Sep. 30, 2020 JPY (¥)	Sep. 30, 2020 USD ($)	Mar. 31, 2017 USD ($)
Commitments And Contingencies Disclosure [Line Items]
Loss contingency accrual, insurance-related assessment, discount rate			4.25%
Loss contingency, discounted amount of insurance-related assessment liability			$ 62
Loss contingency, undiscounted amount of insurance-related assessment liability			94
Loss contingency, insurance-related assessment, discounted amount of premium tax offset			48
Loss contingency, insurance-related assessment, undiscounted amount of premium tax offset			74
Loss contingency, loss in period			$ 14
Information technology and data services company application maintenance and development services agreement
Commitments And Contingencies Disclosure [Line Items]
Outsourcing agreement, remaining term	5 years	5 years
Outsourcing agreement, aggregate remaining cost	¥ 14.5	$ 137

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SUBSEQUENT EVENTS (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended	9 Months Ended
	Oct. 26, 2020	Oct. 31, 2020	Dec. 31, 2020	Sep. 30, 2020	Sep. 30, 2019
Subsequent Event [Line Items]
Payments to Acquire Equity Securities				$ 275	$ 321
Forecast
Subsequent Event [Line Items]
Voluntary separation program costs			$ 45
Subsequent Event | Trupanion, Inc.
Subsequent Event [Line Items]
Equity Security Ownership Percentage	9.00%
Payments to Acquire Equity Securities	$ 60
Agreement to Purchase Common Stock	$ 200
U.S. | Pension Plan
Subsequent Event [Line Items]
Employer contributions				$ 0
U.S. | Pension Plan | Subsequent Event
Subsequent Event [Line Items]
Employer contributions		$ 100