10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

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

For the quarterly period ended September 30, 2014

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 1-5975

HUMANA INC.

(Exact name of registrant as specified in its charter)

Delaware	61-0647538
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)

500 West Main Street

Louisville, Kentucky 40202

(Address of principal executive offices, including zip code)

(502) 580-1000

(Registrant’s telephone number, including area code)

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.    Yes  ý    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ý    No  ¨

Indicate by checkmark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	ý	Accelerated filer	¨
Non-accelerated filer	¨	Smaller reporting company	¨

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

Indicate the number of shares outstanding of each of the issuer’s classes of common stock as of the latest practicable date.

Class of Common Stock	Outstanding at September 30, 2014
$0.16 2/3 par value	153,334,953 shares

Humana Inc.

FORM 10-Q

SEPTEMBER 30, 2014

INDEX

		Page
Part I: Financial Information
Item 1.	Financial Statements (Unaudited)
	Condensed Consolidated Balance Sheets at September 30, 2014 and December 31, 2013	3
	Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2014 and 2013	4
	Condensed Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2014 and 2013	5
	Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2014 and 2013	6
	Notes to Condensed Consolidated Financial Statements	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	31
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	56
Item 4.	Controls and Procedures	56
Part II: Other Information
Item 1.	Legal Proceedings	58
Item 1A.	Risk Factors	58
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	58
Item 3.	Defaults Upon Senior Securities	58
Item 4.	Mine Safety Disclosures	58
Item 5.	Other Information	59
Item 6.	Exhibits	59
	Signatures	60
	Certifications

Humana Inc.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

	September 30, 2014			December 31, 2013
	(in millions, except share amounts)
ASSETS
Current assets:
Cash and cash equivalents	$	2,705		$	1,138
Investment securities	8,088			8,090
Receivables, less allowance for doubtful accounts of $135 in 2014 and $118 in 2013:	1,004			950
Other current assets	3,839			2,122
Total current assets	15,636			12,300
Property and equipment, net	1,349			1,218
Long-term investment securities	1,947			1,710
Goodwill	3,695			3,733
Other long-term assets	1,704			1,774
Total assets	$	24,331		$	20,735
LIABILITIESAND STOCKHOLDERS’ EQUITY
Current liabilities:
Benefits payable	$	4,676		$	3,893
Trade accounts payable and accrued expenses	2,068			1,821
Current portion of long-term debt	512			—
Book overdraft	267			403
Unearned revenues	246			206
Total current liabilities	7,769			6,323
Long-term debt	3,826			2,600
Future policy benefits payable	2,299			2,207
Other long-term liabilities	312			289
Total liabilities	14,206			11,419
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $1 par; 10,000,000 shares authorized; none issued	—			—
Common stock, $0.16 2/3 par; 300,000,000 shares authorized; 197,843,933 shares issued at September 30, 2014 and 196,275,506 shares issued at December 31, 2013	33			33
Capital in excess of par value	2,400			2,267
Retained earnings	9,813			8,942
Accumulated other comprehensive income	233			158
Treasury stock, at cost, 44,508,980 shares at September 30, 2014 and 42,245,097 shares at December 31, 2013	(2,354		)	(2,084		)
Total stockholders’ equity	10,125			9,316
Total liabilities and stockholders’ equity	$	24,331		$	20,735

See accompanying notes to condensed consolidated financial statements.

3

Humana Inc.

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(Unaudited)

	Three months ended September 30,				Nine months ended September 30,
	2014		2013		2014		2013
	(in millions, except per share results)
Revenues:
Premiums	$	11,607	$	9,698	$	34,274	$	29,267
Services	536		528		1,620		1,581
Investment income	95		93		278		278
Total revenues	12,238		10,319		36,172		31,126
Operating expenses:
Benefits	9,666		8,075		28,417		24,361
Operating costs	1,898		1,540		5,518		4,447
Depreciation and amortization	85		83		246		243
Total operating expenses	11,649		9,698		34,181		29,051
Income from operations	589		621		1,991		2,075
Interest expense	38		35		108		105
Income before income taxes	551		586		1,883		1,970
Provision for income taxes	261		218		881		709
Net income	$	290	$	368	$	1,002	$	1,261
Basic earnings per common share	$	1.87	$	2.34	$	6.46	$	7.98
Diluted earnings per common share	$	1.85	$	2.31	$	6.39	$	7.90
Dividends per common share	$	0.28	$	0.27	$	0.83	$	0.80

See accompanying notes to condensed consolidated financial statements.

4

Humana Inc.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
	(in millions)
Net income	$	290		$	368		$	1,002		$	1,261
Other comprehensive income (loss):
Change in gross unrealized investment gains/losses	(36		)	(16		)	128			(286		)
Effect of income taxes	13			6			(47		)	105
Total change in unrealized investment gains/losses, net of tax	(23		)	(10		)	81			(181		)
Reclassification adjustment for net realized gains included in investment income	(6		)	(4		)	(9		)	(14		)
Effect of income taxes	2			1			3			5
Total reclassification adjustment, net of tax	(4		)	(3		)	(6		)	(9		)
Other comprehensive income (loss), net of tax	(27		)	(13		)	75			(190		)
Comprehensive income	$	263		$	355		$	1,077		$	1,071

See accompanying notes to condensed consolidated financial statements.

5

Humana Inc.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

	For the nine months ended September 30,
	2014			2013
	(in millions)
Cash flows from operating activities
Net income	$	1,002		$	1,261
Adjustments to reconcile net income to net cash provided by operating activities:
Net realized capital gains	(9		)	(14		)
Stock-based compensation	76			73
Depreciation and amortization	325			312
(Benefit) provision for deferred income taxes	(30		)	31
Changes in operating assets and liabilities, net of effect of businesses acquired and dispositions:
Receivables	(68		)	(89		)
Other assets	(960		)	(165		)
Benefits payable	783			287
Other liabilities	238			24
Unearned revenues	40			(32		)
Other, net	28			44
Net cash provided by operating activities	1,425			1,732
Cash flows from investing activities
Acquisitions, net of cash acquired	(3		)	(161		)
Proceeds from sale of business	72			33
Purchases of property and equipment	(361		)	(310		)
Purchases of investment securities	(1,949		)	(2,665		)
Maturities of investment securities	702			853
Proceeds from sales of investment securities	1,171			1,107
Net cash used in investing activities	(368		)	(1,143		)
Cash flows from financing activities
Receipts (withdrawals) from contract deposits, net	(743		)	(201		)
Proceeds from issuance of senior notes, net	1,733			—
Change in book overdraft	(136		)	(51		)
Common stock repurchases	(270		)	(325		)
Dividends paid	(129		)	(125		)
Excess tax benefit from stock-based compensation	10			6
Proceeds from stock option exercises and other	45			56
Net cash provided by (used in) financing activities	510			(640		)
Increase (decrease) in cash and cash equivalents	1,567			(51		)
Cash and cash equivalents at beginning of period	1,138			1,306
Cash and cash equivalents at end of period	$	2,705		$	1,255
Supplemental cash flow disclosures:
Interest payments	$	83		$	82
Income tax payments, net	$	852		$	724

See accompanying notes to condensed consolidated financial statements.

6

Humana Inc.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Unaudited

1. BASIS OF PRESENTATION

The accompanying condensed consolidated financial statements are presented in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures normally required by accounting principles generally accepted in the United States of America, or GAAP, or those normally made in an Annual Report on Form 10-K. The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP. For further information, the reader of this Form 10-Q should refer to our Form 10-K for the year ended December 31, 2013, that was filed with the Securities and Exchange Commission, or the SEC, on February 19, 2014, as retrospectively adjusted as it relates to the effects of the business segment reclassifications as described more fully below in our current report on Form 8-K filed with the SEC on September 16, 2014. We refer to the Form 10-K and Form 8-K collectively as the “2013 Form 10-K” in this document. References throughout this document to “we,” “us,” “our,” “Company,” and “Humana” mean Humana Inc. and its subsidiaries.

The preparation of our condensed consolidated financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. The areas involving the most significant use of estimates are the estimation of benefits payable, the impact of risk sharing provisions related to our Medicare contracts, the valuation and related impairment recognition of investment securities, and the valuation and related impairment recognition of long-lived assets, including goodwill. These estimates are based on knowledge of current events and anticipated future events, and accordingly, actual results may ultimately differ materially from those estimates. Refer to Note 2 to the consolidated financial statements included in our 2013 Form 10-K for information on accounting policies that we consider in preparing our consolidated financial statements.

The financial information has been prepared in accordance with our customary accounting practices and has not been audited. In our opinion, the information presented reflects all adjustments necessary for a fair statement of interim results. All such adjustments are of a normal and recurring nature.

Business Segment Reclassifications

On January 1, 2014, we reclassified certain of our businesses from our Healthcare Services segment to our Employer Group segment to correspond with internal management reporting changes. Our reportable segments remain the same and prior period segment financial information has been recast to conform to the 2014 presentation. See Note 13 for segment financial information.

Health Care Reform

The Patient Protection and Affordable Care Act and The Health Care and Education Reconciliation Act of 2010 (which we collectively refer to as the Health Care Reform Law) enacted significant reforms to various aspects of the U.S. health insurance industry. Certain of these reforms became effective January 1, 2014, including an annual insurance industry premium-based fee and the establishment of federally-facilitated or state-based exchanges coupled with three premium stabilization programs, as described more fully below.

The Health Care Reform Law imposes an annual premium-based fee on health insurers for each calendar year beginning on or after January 1, 2014 which is not deductible for tax purposes. We are required to estimate a liability for the health insurer fee and record it in full once qualifying insurance coverage is provided in the applicable calendar year in which the fee is payable with a corresponding deferred cost that is amortized ratably to expense over the same calendar year. In September 2014, we paid the federal government $562 million for the annual health insurance industry fee attributed to calendar year 2014, in accordance with the Health Care Reform Law. We recorded the deferred cost in other current assets in our condensed consolidated financial statements. Amortization of the deferred cost resulted in operating cost expense of approximately $421 million for the nine months ended September 30, 2014 and a remaining deferred cost asset balance of approximately $141 million at September 30, 2014. No such amounts were recorded at December 31, 2013 as the qualifying insurance coverage was not provided until January 1, 2014.

7

Humana Inc.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Unaudited

The Health Care Reform Law also establishes risk spreading premium stabilization programs effective January 1, 2014. The risk spreading programs are applicable to certain of our commercial medical insurance products. In the aggregate, our commercial medical insurance products represented approximately 17.7% of our total premiums and services revenue for the nine months ended September 30, 2014. These programs, commonly referred to as the 3Rs, include a permanent risk adjustment program, a transitional reinsurance program, and a temporary risk corridors program designed to more evenly spread the financial risk borne by issuers and to mitigate the risk that issuers would have mispriced products. The transitional reinsurance and temporary risk corridors programs are for years 2014 through 2016, with potential for additional reinsurance recoveries through 2018 to the extent funds are available. Policies issued prior to March 23, 2010 are considered grandfathered policies and are exempt from the 3Rs. Certain states have allowed non-grandfathered policies issued prior to January 1, 2014 to extend the date of required transition to policies compliant with the Health Care Reform Law to as late as 2017. Accordingly, such policies are exempt from the 3Rs until they transition to policies compliant with the Health Care Reform Law.

The permanent risk adjustment program adjusts the premiums that commercial individual and small group health insurance issuers receive based on the demographic factors and health status of each member as derived from current year medical diagnosis as reported throughout the year. This program transfers funds from lower risk plans to higher risk plans within similar plans in the same state. The risk adjustment program is applicable to commercial individual and small group health plans (except certain exempt and grandfathered plans as discussed above) operating both inside and outside of the health insurance exchanges established under the Health Care Reform Law. Under the risk adjustment program, a risk score is assigned to each covered member to determine an average risk score at the individual and small group level by legal entity in a particular market in a state. Additionally, an average risk score is determined for the entire subject population for each market in each state. Settlements are determined on a net basis by legal entity and state. Each health insurance issuer’s average risk score is compared to the state’s average risk score. Plans with an average risk score below the state average will pay into a pool and health insurance issuers with an average risk score that is greater than the state average risk score will receive money from that pool. We generally rely on providers, including certain network providers who are our employees, to appropriately document all medical data, including the diagnosis codes submitted with claims, as the basis for our risk scores under the program. Our estimate of amounts receivable and/or payable under the risk adjustment program is based on our estimate of both our own and the state average risk scores. Assumptions used in these estimates include but are not limited to geographic considerations including our historical experience in markets we have participated in over a long period of time, member demographics including age and gender for our members and other health insurance issuers, our pricing model, sales data for each metal tier (different metal tiers yield different risk scores), the mix of previously underwritten membership as compared to new members in plans compliant with the Health Care Reform Law, published third party studies, and other publicly available data including regulatory plan filings. We expect to refine our estimates as new information becomes available, including additional data released by the Department of Health and Human Services, or HHS, regarding estimates of state average risk scores. Risk adjustment will be subject to audit by HHS beginning in 2014, however, there will be no payments associated with these audits for 2014 or 2015, the first two years of the program.

The temporary risk corridor program applies to individual and small group Qualified Health Plans (or substantially equivalent plans), or QHPs, as defined by HHS, operating both inside and outside of the exchanges. Accordingly, plans subject to risk adjustment that are not QHPs, including our small group health plans, will not be subject to the risk corridor program. The risk corridor provisions limit issuer gains and losses by comparing allowable medical costs to a target amount, each defined/prescribed by HHS, and sharing the risk for allowable costs with the federal government. Allowable medical costs are adjusted for risk adjustment settlements, transitional reinsurance recoveries, and cost sharing reductions received from HHS. Variances from the target exceeding certain thresholds may result in HHS making additional payments to us or require us to refund HHS a portion of the premiums we received. While risk corridor payments from HHS were expected to be limited to the extent of the risk corridor collections received by HHS over the duration of the program, on May 16, 2014, HHS released clarifying guidance. This guidance indicated that risk corridor collections are expected to be sufficient to make all risk corridor payments. However, in the event of a shortfall, HHS has indicated that it intends to find other sources of funding for the risk corridors payments, subject to the availability of the requisite appropriations by Congress.

We estimate and recognize adjustments to premiums revenue for the risk adjustment and risk corridor provisions by projecting our ultimate premium for the calendar year separately for individual and group plans by state and legal

8

Humana Inc.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Unaudited

entity. Estimated calendar year settlement amounts are recognized ratably during the year and are revised each period to reflect current experience, including changes in risk scores derived from medical diagnoses submitted by providers. We record receivables or payables at the individual or group level within each state and legal entity and classify the amounts as current or long-term in the condensed consolidated balance sheets based on the timing of expected settlement.

The transitional reinsurance program requires us to make reinsurance contributions for calendar years 2014 through 2016 to a state or HHS established reinsurance entity based on a national contribution rate per covered member as determined by HHS. While all commercial medical plans, including self-funded plans, are required to fund the reinsurance entity, only fully-insured non-grandfathered plans compliant with the Health Care Reform Law in the individual commercial market will be eligible for recoveries if individual claims exceed a specified threshold. Accordingly, we account for transitional reinsurance contributions associated with all commercial medical health plans other than these non-grandfathered individual plans as an assessment in operating costs in our condensed consolidated statements of income. We account for contributions made by individual commercial plans compliant with the Health Care Reform Law, which are subject to recoveries, as ceded premiums (a reduction of premiums) and similarly we account for any recoveries as ceded benefits (a reduction of benefits expense) in our condensed consolidated statements of income. For the nine months ended September 30, 2014, we recorded operating costs of $77 million associated with transitional reinsurance contributions for plans other than non-grandfathered individual commercial plans. In addition, for our non-grandfathered individual commercial plans we recorded ceded premiums of $25 million and recorded ceded benefits of $375 million in our condensed consolidated statements of income for the nine months ended September 30, 2014. No such amounts were recorded in 2013 as the program was not effective until January 1, 2014.

The accompanying condensed consolidated balance sheets include the following amounts associated with the 3Rs at September 30, 2014. No such amounts were recorded in our condensed consolidated balance sheet at December 31, 2013 as the programs were not effective until January 1, 2014.

	September 30, 2014
	Risk Adjustment/Risk Corridor Settlement			Reinsurance Contribution			Reinsurance Recoverables
	(in millions)
Current assets	$	134		$	—		$	375
Trade accounts payable and accrued expenses	(53		)	(102		)	—
Net current asset (liability)	$	81		$	(102	)	$	375

We are required to remit payment for our per member reinsurance contribution in January of the year following the benefit year, or January 2015 for the 2014 benefit year. Risk adjustment calculations will be completed and HHS will notify us of recoveries due or payments owed to/from us under the risk adjustment and reinsurance programs by June 30 of the year following the benefit year. Payments due to HHS under the risk adjustment program must be remitted within 30 days of notification and will be collected prior to the distribution of recoveries by HHS. Following this notification, risk corridor calculations are then due by July 31 of the year following the benefit year. Payment and recovery amounts will be settled with HHS annually in the second half of the year following the benefit year. Accordingly, for the 2014 benefit year, we expect to receive recoveries and/or pay amounts due under these programs in the second half of 2015.

In addition to the provisions discussed above, beginning in 2014, HHS pays us a portion of the health care costs for low-income individual members for which we assume no risk in accordance with the Health Care Reform Law. We account for these subsidies as a deposit in our consolidated balance sheets and as a financing activity in our consolidated statements of cash flows. We do not recognize premiums revenue or benefits expense for these subsidies. Receipt and payment activity is accumulated at the state and legal entity level and recorded in our consolidated balance sheets in other current assets or trade accounts payable and accrued expenses depending on the state and legal entity balance at the end of the reporting period. We will be notified of final settlement amounts by June 30 of the year following the benefit year. Receipts from HHS associated with these cost sharing subsidies for which we do not assume risk were $29 million higher than claims payments for the nine months ended September 30, 2014.

9

Humana Inc.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Unaudited

2. RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

In April 2014, the Financial Accounting Standards Board, or FASB, issued new guidance related to discontinued operations which changes the criteria for determining which disposals can be presented as discontinued operations and modifies related disclosure requirements. The new guidance is effective for us beginning with annual and interim periods in 2015 with early adoption permitted under certain circumstances. Based upon existing facts and circumstances, the adoption of the new guidance is not expected to have a material impact on our results of operations, financial condition, or cash flows.

In May 2014, the FASB issued new guidance that amends the accounting for revenue recognition. The amendments are intended to provide a more robust framework for addressing revenue issues, improve comparability of revenue recognition practices, and improve disclosure requirements. Insurance contracts are not in the scope of this new guidance. Accordingly, the new guidance primarily will apply to the recognition of our services revenue, including intersegment revenues associated with our Healthcare Services segment. Services revenue represented less than 5% of our consolidated revenues for the three and nine months ended September 30, 2014. The new guidance is effective for us beginning with annual and interim periods in 2017. We are currently evaluating the impact on our results of operations, financial condition, and cash flows.

There are no other recently issued accounting standards that apply to us or that are expected to have a material impact on our results of operations, financial condition, or cash flows.

3. ACQUISITIONS

On September 6, 2013, we acquired American Eldercare Inc., or American Eldercare, the largest provider of nursing home diversion services in the state of Florida, serving frail and elderly individuals in home and community-based settings. American Eldercare complements our core capabilities and strength in serving seniors and disabled individuals with a unique focus on individualized and integrated care, and has contracts to provide Medicaid Long-Term Support Services across the entire state of Florida. The enrollment effective dates for the various regions ranged from August 2013 to March 2014. The allocation of the purchase price resulted in goodwill of $76 million and other intangible assets of $75 million. The goodwill was assigned to the Retail segment. The other intangible assets, which primarily consist of customer contracts and technology, have a weighted average useful life of 9.3 years. Goodwill and other intangible assets are amortizable as deductible expenses for tax purposes.

The results of operations and financial condition of American Eldercare have been included in our condensed consolidated statements of income and condensed consolidated balance sheets from the acquisition dates. In addition, during 2014 and 2013, we acquired other health and wellness related businesses which, individually or in the aggregate, have not had, or are not expected to have, a material impact on our results of operations, financial condition, or cash flows. Acquisition-related costs recognized in 2014 and 2013 were not material to our results of operations. The pro forma financial information assuming the acquisitions had occurred as of the beginning of the calendar year prior to the year of acquisition, as well as the revenues and earnings generated during the year of acquisition were not material for disclosure purposes.

10

Humana Inc.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Unaudited

4. INVESTMENT SECURITIES

Investment securities classified as current and long-term were as follows at September 30, 2014 and December 31, 2013, respectively:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(in millions)
September 30, 2014
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	$	846	$	8	$	(2	)	$	852
Mortgage-backed securities	1,544		42		(17		)	1,569
Tax-exempt municipal securities	3,006		148		(3		)	3,151
Mortgage-backed securities:
Residential	18		—		—			18
Commercial	698		15		(17		)	696
Asset-backed securities	40		1		—			41
Corporate debt securities	3,431		289		(12		)	3,708
Total debt securities	$	9,583	$	503	$	(51	)	$	10,035
December 31, 2013
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	$	584	$	6	$	(6	)	$	584
Mortgage-backed securities	1,834		34		(48		)	1,820
Tax-exempt municipal securities	2,911		93		(33		)	2,971
Mortgage-backed securities:
Residential	22		—		—			22
Commercial	662		20		(9		)	673
Asset-backed securities	63		1		(1		)	63
Corporate debt securities	3,474		223		(30		)	3,667
Total debt securities	$	9,550	$	377	$	(127	)	$	9,800

11

Humana Inc.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Unaudited

Gross unrealized losses and fair values aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position were as follows at September 30, 2014 and December 31, 2013, respectively:

	Less than 12 months					12 months or more					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
	(in millions)
September 30, 2014
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	$	59	$	—		$	86	$	(2	)	$	145	$	(2	)
Mortgage-backed securities	147		(1		)	475		(16		)	622		(17		)
Tax-exempt municipal securities	136		—			136		(3		)	272		(3		)
Mortgage-backed securities:
Residential	1		—			4		—			5		—
Commercial	145		(3		)	206		(14		)	351		(17		)
Asset-backed securities	—		—			16		—			16		—
Corporate debt securities	209		(3		)	141		(9		)	350		(12		)
Total debt securities	$	697	$	(7	)	$	1,064	$	(44	)	$	1,761	$	(51	)
December 31, 2013
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	$	231	$	(6	)	$	5	$	—		$	236	$	(6	)
Mortgage-backed securities	1,076		(47		)	21		(1		)	1,097		(48		)
Tax-exempt municipal securities	693		(28		)	57		(5		)	750		(33		)
Mortgage-backed securities:
Residential	6		—			1		—			7		—
Commercial	270		(8		)	40		(1		)	310		(9		)
Asset-backed securities	35		(1		)	—		—			35		(1		)
Corporate debt securities	594		(28		)	17		(2		)	611		(30		)
Total debt securities	$	2,905	$	(118	)	$	141	$	(9	)	$	3,046	$	(127	)

Approximately 96% of our debt securities were investment-grade quality, with a weighted average credit rating of AA- by S&P at September 30, 2014. Most of the debt securities that were below investment-grade were rated BB, the higher end of the below investment-grade rating scale. At September 30, 2014, 5% of our tax-exempt municipal securities were pre-refunded, generally with U.S. government and agency securities. Tax-exempt municipal securities that were not pre-refunded were diversified among general obligation bonds of U.S. states and local municipalities as well as special revenue bonds. General obligation bonds, which are backed by the taxing power and full faith of the issuer, accounted for 39% of the tax-exempt municipals that were not pre-refunded in the portfolio. Special revenue

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bonds, issued by a municipality to finance a specific public works project such as utilities, water and sewer, transportation, or education, and supported by the revenues of that project, accounted for the remaining 61% of these municipals. Our general obligation bonds are diversified across the United States with no individual state exceeding 11%. In addition, 16% of our tax-exempt securities were insured by bond insurers and had an equivalent weighted average S&P credit rating of AA exclusive of the bond insurers’ guarantee. Our investment policy limits investments in a single issuer and requires diversification among various asset types.

The recoverability of our non-agency residential and commercial mortgage-backed securities is supported by factors such as seniority, underlying collateral characteristics and credit enhancements. These residential and commercial mortgage-backed securities at September 30, 2014 primarily were composed of senior tranches having high credit support, with over 99% of the collateral consisting of prime loans. The weighted average credit rating of all commercial mortgage-backed securities was AA at September 30, 2014.

The percentage of corporate securities associated with the financial services industry was 20% at September 30, 2014 and 23% at December 31, 2013.

All issuers of securities we own that were trading at an unrealized loss at September 30, 2014 remain current on all contractual payments. After taking into account these and other factors previously described, we believe these unrealized losses primarily were caused by an increase in market interest rates since the time the securities were purchased. At September 30, 2014, we did not intend to sell the securities with an unrealized loss position in accumulated other comprehensive income, and it is not likely that we will be required to sell these securities before recovery of their amortized cost basis. As a result, we believe that the securities with an unrealized loss were not other-than-temporarily impaired at September 30, 2014.

The detail of realized gains (losses) related to investment securities and included within investment income was as follows for the three and nine months ended September 30, 2014 and 2013:

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
	(in millions)
Gross realized gains	$	7		$	7		$	14		$	24
Gross realized losses	(1		)	(3		)	(5		)	(10		)
Net realized capital gains	$	6		$	4		$	9		$	14

There were no material other-than-temporary impairments for the three and nine months ended September 30, 2014 or 2013.

The contractual maturities of debt securities available for sale at September 30, 2014, regardless of their balance sheet classification, are shown below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Amortized Cost		Fair Value
	(in millions)
Due within one year	$	1,030	$	1,036
Due after one year through five years	2,119		2,234
Due after five years through ten years	2,184		2,307
Due after ten years	1,950		2,134
Mortgage and asset-backed securities	2,300		2,324
Total debt securities	$	9,583	$	10,035

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5. FAIR VALUE

Financial Assets

The following table summarizes our fair value measurements at September 30, 2014 and December 31, 2013, respectively, for financial assets measured at fair value on a recurring basis:

	Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets (Level 1)		Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(in millions)
September 30, 2014
Cash equivalents	$	2,606	$	2,606	$	—	$	—
Debt securities:
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	852		—		852		—
Mortgage-backed securities	1,569		—		1,569		—
Tax-exempt municipal securities	3,151		—		3,138		13
Mortgage-backed securities:
Residential	18		—		18		—
Commercial	696		—		696		—
Asset-backed securities	41		—		40		1
Corporate debt securities	3,708		—		3,684		24
Total debt securities	10,035		—		9,997		38
Total invested assets	$	12,641	$	2,606	$	9,997	$	38
December 31, 2013
Cash equivalents	$	876	$	876	$	—	$	—
Debt securities:
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	584		—		584		—
Mortgage-backed securities	1,820		—		1,820		—
Tax-exempt municipal securities	2,971		—		2,958		13
Mortgage-backed securities:
Residential	22		—		22		—
Commercial	673		—		673		—
Asset-backed securities	63		—		62		1
Corporate debt securities	3,667		—		3,644		23
Total debt securities	9,800		—		9,763		37
Total invested assets	$	10,676	$	876	$	9,763	$	37

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There were no material transfers between Level 1 and Level 2 during the three and nine months ended September 30, 2014 or September 30, 2013.

Our Level 3 assets had a fair value of $38 million at September 30, 2014, or 0.3% of our total invested assets. During the three and nine months ended September 30, 2014 and 2013, the changes in the fair value of the assets measured using significant unobservable inputs (Level 3) were comprised of the following:

	For the three months ended September 30,
	2014						2013
	Private Placements		Auction Rate Securities		Total		Private Placements			Auction Rate Securities		Total
	(in millions)
Beginning balance at April 1	$	24	$	13	$	37	$	23		$	13	$	36
Total gains or losses:
Realized in earnings	—		—		—		—			—		—
Unrealized in other comprehensive income	1		—		1		1			—		1
Purchases	—		—		—		—			—		—
Sales	—		—		—		—			—		—
Settlements	—		—		—		—			—		—
Balance at September 30	$	25	$	13	$	38	$	24		$	13	$	37
	For the nine months ended September 30,
	2014						2013
	Private Placements		Auction Rate Securities		Total		Private Placements			Auction Rate Securities		Total
	(in millions)
Beginning balance at January 1	$	24	$	13	$	37	$	25		$	13	$	38
Total gains or losses:
Realized in earnings	—		—		—		—			—		—
Unrealized in other comprehensive income	1		—		1		—			—		—
Purchases	—		—		—		—			—		—
Sales	—		—		—		—			—		—
Settlements	—		—		—		(1		)	—		(1		)
Balance at September 30	$	25	$	13	$	38	$	24		$	13	$	37

Financial Liabilities

Our long-term debt is recorded at carrying value in our consolidated balance sheets. The carrying value of our long-term debt outstanding, including the current portion, was $4,338 million at September 30, 2014 and $2,600 million at December 31, 2013. The fair value of our long-term debt, including the current portion, was $4,565 million at September 30, 2014 and $2,751 million at December 31, 2013. The fair value of our long-term debt is determined based on Level 2 inputs, including quoted market prices for the same or similar debt, or if no quoted market prices are available, on the current prices estimated to be available to us for debt with similar terms and remaining maturities.

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Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

As disclosed in Note 3, the acquisitions of American Eldercare and other health and wellness companies were completed during 2014 and 2013. The values of net tangible assets acquired and the resulting goodwill and other intangible assets were recorded at fair value using Level 3 inputs. The majority of the related tangible assets acquired and liabilities assumed were recorded at their carrying values as of the respective dates of acquisition, as their carrying values approximated their fair values due to their short-term nature. The fair values of goodwill and other intangible assets acquired in these acquisitions were internally estimated primarily based on the income approach. The income approach estimates fair value based on the present value of the cash flows that the assets are expected to generate in the future. We developed internal estimates for the expected cash flows and discount rates used in the present value calculations. Other than assets acquired and liabilities assumed in these acquisitions, there were no material assets or liabilities measured at fair value on a nonrecurring basis during the three and nine months ended September 30, 2014 or 2013.

6. MEDICARE PART D

We cover prescription drug benefits in accordance with Medicare Part D under multiple contracts with the Centers for Medicare and Medicaid Services, or CMS. The accompanying condensed consolidated balance sheets include the following amounts associated with Medicare Part D at September 30, 2014 and December 31, 2013. Amounts included below relating to the 2013 contract year for the net risk corridor payable of $35 million and the CMS subsidies receivable of $691 million at September 30, 2014 were settled in October 2014.

	September 30, 2014						December 31, 2013
	Risk Corridor Settlement			CMS Subsidies/ Discounts			Risk Corridor Settlement			CMS Subsidies/ Discounts
	(in millions)
Other current assets	$	205		$	1,517		$	45		$	743
Trade accounts payable and accrued expenses	(80		)	(43		)	(71		)	(30		)
Net current (liability) asset	125			1,474			(26		)	713

7. GOODWILL AND OTHER INTANGIBLE ASSETS

The carrying amount of goodwill for our reportable segments has been retrospectively adjusted to conform to the 2014 presentation as discussed in Note 1. Changes in the carrying amount of goodwill for our reportable segments for the nine months ended September 30, 2014 were as follows:

	Retail		Employer Group		Healthcare Services			Other Businesses		Total
	(in millions)
Balance at January 1, 2014	$	1,007	$	363	$	2,271		$	92	$	3,733
Acquisitions	—		—		3			—		3
Dispositions	—		—		(40		)	—		(40		)
Subsequent payments/adjustments	—		—		(1		)	—		(1		)
Balance at September 30, 2014	$	1,007	$	363	$	2,233		$	92	$	3,695

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The following table presents details of our other intangible assets included in other long-term assets in the accompanying condensed consolidated balance sheets at September 30, 2014 and December 31, 2013:

		September 30, 2014						December 31, 2013
	Weighted Average Life	Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
	(in millions)
Other intangible assets:
Customer contracts/ relationships	9.8 yrs	$	764	$	349	$	415	$	792	$	310	$	482
Trade names and technology	13.2 yrs	198		54		144		200		40		160
Provider contracts	15.1 yrs	51		19		32		51		23		28
Noncompetes and other	6.6 yrs	50		34		16		52		29		23
Total other intangible assets	10.5 yrs	$	1,063	$	456	$	607	$	1,095	$	402	$	693

Amortization expense for other intangible assets was approximately $28 million for the three months ended September 30, 2014 and 2013. For the nine months ended September 30, 2014 and 2013, amortization expense for other intangible assets was approximately $85 million and $84 million, respectively. The following table presents our estimate of amortization expense for 2014 and each of the five next succeeding years:

	(in millions)
For the years ending December 31,:
2014	$	112
2015	101
2016	94
2017	86
2018	79
2019	67

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8. EARNINGS PER COMMON SHARE COMPUTATION

Detail supporting the computation of basic and diluted earnings per common share was as follows for the three and nine months ended September 30, 2014 and 2013:

	Three months ended September 30,				Nine months ended September 30,
	2014		2013		2014		2013
	(dollars in millions, except per common share results; number of shares in thousands)
Net income available for common stockholders	$	290	$	368	$	1,002	$	1,261
Weighted average outstanding shares of common stock used to compute basic earnings per common share	154,502		157,187		155,006		158,026
Dilutive effect of:
Employee stock options	203		289		233		341
Restricted stock	1,525		1,431		1,402		1,244
Shares used to compute diluted earnings per common share	156,230		158,907		156,641		159,611
Basic earnings per common share	$	1.87	$	2.34	$	6.46	$	7.98
Diluted earnings per common share	$	1.85	$	2.31	$	6.39	$	7.90
Number of antidilutive stock options and restricted stock excluded from computation	43		202		420		910

9. STOCKHOLDERS’ EQUITY

Dividends

The following table provides details of dividend payments in 2013 and 2014 under our Board approved quarterly cash dividend policy:

Record Date	Payment Date	Amount per Share		Total Amount
				(in millions)
2013 payments
12/31/2012	1/25/2013	$	0.26	$	42
3/28/2013	4/26/2013	$	0.26	$	41
6/28/2013	7/26/2013	$	0.27	$	42
9/30/2013	10/25/2013	$	0.27	$	42
2014 payments
12/31/2013	1/31/2014	$	0.27	$	42
3/31/2014	4/25/2014	$	0.27	$	42
6/30/2014	7/25/2014	$	0.28	$	43
9/30/2014	10/31/2014	$	0.28	$	43

In October 2014, the Board declared a cash dividend of $0.28 per share payable on January 30, 2015 to stockholders of record on December 31, 2014. Declaration and payment of future quarterly dividends is at the discretion of the Board and may be adjusted as business needs or market conditions change.

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Stock Repurchases

In September 2014, the Board of Directors replaced a previous share repurchase authorization of up to $1 billion (of which $816 million remained unused) with a new authorization for repurchases of up to $2 billion of our common shares exclusive of shares repurchased in connection with employee stock plans, expiring on December 31, 2016. Under the new share repurchase authorization, shares may be purchased from time to time at prevailing prices in the open market, by block purchases, or in privately-negotiated transactions, subject to certain regulatory restrictions on volume, pricing, and timing. During the nine months ended September 30, 2014, we repurchased 1.60 million shares in open market transactions for $195 million at an average price of $121.68 under previous share repurchase authorizations and we repurchased 0.27 million shares in open market transactions for $35 million at an average price of $128.34 under the current authorization. During the nine months ended September 30, 2013, we repurchased 3.78 million shares in open market transactions for $301 million at an average price of $79.79 under previous share repurchase authorizations. During the period commencing on October 1, 2014 and ending on November 6, 2014, we repurchased 0.77 million shares in open market transactions for $100 million at an average price of $130.50 under the current authorization. As of November 7, 2014, the remaining authorized amount under the new authorization totaled $1.87 billion.

In connection with employee stock plans, we acquired 0.4 million common shares for $40 million and 0.3 million common shares for $24 million during the nine months ended September 30, 2014 and 2013, respectively.

Accumulated Other Comprehensive Income

Accumulated other comprehensive income included net unrealized gains on our investment securities of $286 million at September 30, 2014 and $158 million at December 31, 2013. In addition, accumulated other comprehensive income included $53 million at September 30, 2014 for an additional liability that would exist on our closed block of long-term care insurance policies if unrealized gains on the sale of the investments backing such products had been realized and the proceeds reinvested at then current yields. There was no such additional liability at December 31, 2013. Refer to Note 17 to the consolidated financial statements in our 2013 Form 10-K for further discussion of our long-term care insurance policies.

10. INCOME TAXES

The effective income tax rate was 47.5% for the three months ended September 30, 2014, compared to 37.2% for the three months ended September 30, 2013. For the nine months ended September 30, 2014 the effective tax rate was 46.8%, compared to 36.0% for the nine months ended September 30, 2013. The non-deductible nature of the health insurance industry fee levied on the industry beginning in 2014 as mandated by the Health Care Reform Law increased our effective tax rate by approximately 10 percentage points for the nine months ended September 30, 2014. In addition, the effective tax for the three and nine months ended September 30, 2013 includes the beneficial effect of a change in our estimated tax liability associated with limitations on the deductibility of annual compensation in excess of $500,000 per employee as mandated by the Health Care Reform Law.

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11.  DEBT

The carrying value of long-term debt outstanding, including the current portion, was as follows at September 30, 2014 and December 31, 2013:

	September 30, 2014		December 31, 2013
	(in millions)
Senior notes:
$500 million, 6.45% due June 1, 2016	$	512	$	517
$500 million, 7.20% due June 15, 2018	505		505
$300 million, 6.30% due August 1, 2018	312		314
$400 million, 2.625% due October 1, 2019	400		—
$600 million, 3.15% due December 1, 2022	598		598
$600 million, 3.85% due October 1, 2024	599		—
$250 million, 8.15% due June 15, 2038	266		266
$400 million, 4.625% due December 1, 2042	400		400
$750 million, 4.95% due October 1, 2044	746		—
Total debt	$	4,338	$	2,600
Less current portion of long-term debt	512		—
Total long-term debt	$	3,826	$	2,600

Senior Notes

In September 2014, we issued $400 million of 2.625% senior notes due October 1, 2019, $600 million of 3.85% senior notes due October 1, 2024 and $750 million of 4.95% senior notes due October 1, 2044. Our net proceeds, reduced for the underwriters' discount and commission and offering expenses, were $1.73 billion. We used a portion of the net proceeds to redeem the 6.45% senior unsecured notes as discussed below, and intend to use some or all of the remaining net proceeds to repurchase shares of our common stock and for general corporate purposes.

In October 2014, we redeemed the $500 million 6.45% senior unsecured notes due June 1, 2016, at 100% of the principal amount plus applicable premium for early redemption and accrued and unpaid interest to the redemption date, for cash totaling approximately $560 million. We recognized a loss on extinguishment of debt of approximately $37 million in October 2014 for the redemption of these notes.

Our senior notes, which are unsecured, may be redeemed at our option at any time at 100% of the principal amount plus accrued interest and a specified make-whole amount. The 7.20% and 8.15% senior notes are subject to an interest rate adjustment if the debt ratings assigned to the notes are downgraded (or subsequently upgraded). In addition, our senior notes (other than the 6.30% senior notes) contain a change of control provision that may require us to purchase the notes under certain circumstances.

Prior to 2009, we were parties to interest-rate swap agreements that exchanged the fixed interest rate under our senior notes for a variable interest rate based on LIBOR. As a result, the carrying value of the senior notes was adjusted to reflect changes in value caused by an increase or decrease in interest rates. During 2008, we terminated all of our swap agreements. The cumulative adjustment to the carrying value of our senior notes was $103 million as of the termination date which is being amortized as a reduction to interest expense over the remaining term of the senior notes. The unamortized carrying value adjustment was $45 million as of September 30, 2014 and $54 million as of December 31, 2013. In October 2014, the redemption of our 6.45% senior notes reduced the unamortized carrying value adjustment by $12 million.

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Credit Agreement

Our 5-year $1.0 billion unsecured revolving credit agreement expires July 2018. Under the credit agreement, at our option, we can borrow on either a competitive advance basis or a revolving credit basis. The revolving credit portion bears interest at either LIBOR plus a spread or the base rate plus a spread. The LIBOR spread, currently 110 basis points, varies depending on our credit ratings ranging from 90.0 to 150.0 basis points. We also pay an annual facility fee regardless of utilization. This facility fee, currently 15 basis points, may fluctuate between 10.0 and 25.0 basis points, depending upon our credit ratings. The competitive advance portion of any borrowings will bear interest at market rates prevailing at the time of borrowing on either a fixed rate or a floating rate based on LIBOR, at our option.

The terms of the credit agreement include standard provisions related to conditions of borrowing, including a customary material adverse effect clause which could limit our ability to borrow additional funds. In addition, the credit agreement contains customary restrictive and financial covenants as well as customary events of default, including financial covenants regarding the maintenance of a minimum level of net worth of $7.6 billion at September 30, 2014 and a maximum leverage ratio of 3.0:1. We are in compliance with the financial covenants, with actual net worth of $10.1 billion and an actual leverage ratio of 1.8:1, as measured in accordance with the credit agreement as of September 30, 2014. In addition, the credit agreement includes an uncommitted $250 million incremental loan facility.

At September 30, 2014, we had no borrowings outstanding under the credit agreement and we had outstanding letters of credit of $5 million secured under that credit agreement. No amounts have been drawn on these letters of credit. Accordingly, as of September 30, 2014, we had $995 million of remaining borrowing capacity under the credit agreement, none of which would be restricted by our financial covenant compliance requirement. We have other customary, arms-length relationships, including financial advisory and banking, with some parties to the credit agreement.

Commercial Paper

In October 2014, we entered into a commercial paper program pursuant to which we may issue short-term, unsecured commercial paper notes privately placed on a discount basis through certain broker dealers. Amounts available under the program may be borrowed, repaid and re-borrowed from time to time, with the aggregate face or principal amounts outstanding under the program at any time not to exceed $1 billion. The net proceeds of issuances are expected to be used for general corporate purposes, including to repurchase shares of our common stock. As of November 6, 2014, we had $150 million outstanding in our commercial paper program.

12. GUARANTEES AND CONTINGENCIES

Government Contracts

Our Medicare products, which accounted for approximately 73% of our total premiums and services revenue for the nine months ended September 30, 2014, primarily consisted of products covered under the Medicare Advantage and Medicare Part D Prescription Drug Plan contracts with the federal government. These contracts are renewed generally for a calendar year term unless CMS notifies us of its decision not to renew by May 1 of the calendar year in which the contract would end, or we notify CMS of our decision not to renew by the first Monday in June of the calendar year in which the contract would end. All material contracts between Humana and CMS relating to our Medicare products have been renewed for 2015, and all of our product offerings filed with CMS for 2015 have been approved.

CMS uses a risk-adjustment model which apportions premiums paid to Medicare Advantage plans according to health severity of covered members. The risk-adjustment model pays more for enrollees with predictably higher costs. Under this model, rates paid to Medicare Advantage plans are based on actuarially determined bids, which include a process whereby our prospective payments are based on a comparison of our beneficiaries’ risk scores, derived from medical diagnoses, to those enrolled in the government’s original Medicare program. Under the risk-adjustment methodology, all Medicare Advantage plans must collect and submit the necessary diagnosis code information from hospital inpatient, hospital outpatient, and physician providers to CMS within prescribed deadlines. The CMS risk-

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adjustment model uses the diagnosis data to calculate the risk-adjusted premium payment to Medicare Advantage plans, which CMS adjusts for coding pattern differences between the health plans and the government fee-for-service program. We generally rely on providers, including certain providers in our network who are our employees, to code their claim submissions with appropriate diagnoses, which we send to CMS as the basis for our payment received from CMS under the actuarial risk-adjustment model. We also rely on these providers to document appropriately all medical data, including the diagnosis data submitted with claims. In addition, we conduct medical record reviews as part of our data and payment accuracy compliance efforts, to more accurately reflect diagnosis conditions under the risk adjustment model. These compliance efforts include the internal contract level audits described in more detail below.

CMS is continuing to perform audits of various companies’ selected Medicare Advantage contracts related to this risk adjustment diagnosis data. We refer to these audits as Risk-Adjustment Data Validation Audits, or RADV audits. RADV audits review medical records in an attempt to validate provider medical record documentation and coding practices which influence the calculation of premium payments to Medicare Advantage plans.

In 2012, CMS released a “Notice of Final Payment Error Calculation Methodology for Part C Medicare Advantage Risk Adjustment Data Validation (RADV) Contract-Level Audits.” The payment error calculation methodology provides that, in calculating the economic impact of audit results for a Medicare Advantage contract, if any, the results of the audit sample will be extrapolated to the entire Medicare Advantage contract based upon a comparison to “benchmark” audit data in the government fee-for-service program. This comparison to the government program benchmark audit is necessary to determine the economic impact, if any, of audit results because the government program data set, including any attendant errors that are present in that data set, provides the basis for Medicare Advantage plans’ risk adjustment to payment rates. CMS already makes other adjustments to payment rates based on a comparison of coding pattern differences between Medicare Advantage plans and the government fee-for-service program data (such as for frequency of coding for certain diagnoses in Medicare Advantage plan data versus the government program data set).

The final methodology, including the first application of extrapolated audit results to determine audit settlements, is expected to be applied to the current round of RADV contract level audits being conducted on 2011 premium payments. Selected Medicare Advantage contracts will be notified of an audit at some point after the close of the final reconciliation for the payment year being audited. The final reconciliation occurs in August of the calendar year following the payment year. On November 5, 2013, we were notified that certain of our Medicare Advantage contracts have been selected for audit for contract year 2011.

Estimated audit settlements are recorded as a reduction of premiums revenue in our consolidated statements of income, based upon available information. We perform internal contract level audits based on the RADV audit methodology prescribed by CMS. Included in these internal contract level audits is an audit of our Private Fee-For-Service business which we used to represent a proxy of the benchmark audit data in the government fee-for-service program which has not yet been released. We based our accrual of estimated audit settlements for contract years 2011 (the first year that application of extrapolated audit results is applicable) through 2014 on the results of these internal contract level audits and update our estimates as each audit is completed. Estimates derived from these results were not material to our results of operations, financial position, or cash flows. However, as indicated, we are awaiting additional guidance from CMS regarding the benchmark audit data in the government fee-for-service program. Accordingly, we cannot determine whether such RADV audits will have a material adverse effect on our results of operations, financial position, or cash flows.

In addition, CMS' recent comments in formalized guidance regarding “overpayments” to Medicare Advantage plans appear to be inconsistent with the Agency’s prior RADV audit guidance. These statements, contained in the preamble to CMS’ final rule release regarding Medicare Advantage and Part D prescription drug benefit program regulations for Contract Year 2015, appear to equate each Medicare Advantage risk adjustment data error with an “overpayment” without reconciliation to the principles underlying the FFS Adjuster referenced above. We will continue to work with CMS to ensure that Medicare Advantage plans are paid accurately and that payment model principles are in accordance with the requirements of the Social Security Act, which, if not implemented correctly could have a material adverse effect on our results of operations, financial position, or cash flows.

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At September 30, 2014, our military services business, which accounted for approximately 1% of our total premiums and services revenue for the nine months ended September 30, 2014, primarily consisted of the TRICARE South Region contract. The current 5-year South Region contract, which expires March 31, 2017, is subject to annual renewals on April 1 of each year during its term at the government’s option. On March 14, 2014, the Defense Health Agency, or DHA, exercised its option to extend the TRICARE South Region contract through March 31, 2015.

The loss of any of the contracts above or significant changes in these programs as a result of legislative or regulatory action, including reductions in premium payments to us, regulatory restrictions on profitability, including by comparison of our Medicare Advantage profitability to our non-Medicare Advantage business profitability and a requirement that they remain within certain ranges of each other, or increases in member benefits without corresponding increases in premium payments to us, may have a material adverse effect on our results of operations, financial position, and cash flows.

Our state-based Medicaid business accounted for approximately 2% of our total premiums and services revenue for the nine months ended September 30, 2014. In addition to our state-based Medicaid contracts in Florida and Kentucky, we have contracts in Illinois and Virginia for stand-alone dual eligible demonstration programs serving individuals dually eligible for both the federal Medicare program and the applicable state-based Medicaid program. We began serving members in Illinois in the first quarter of 2014 and in Virginia in the second quarter of 2014. In addition, we began serving members in Long-Term Care Support Services (LTSS) regions in Florida at various effective dates ranging from the second half of 2013 through the first quarter of 2014.

On June 26, 2013, the Puerto Rico Health Insurance Administration notified us of its election not to renew our three-year Medicaid contracts for the East, Southeast, and Southwest regions which ended June 30, 2013. Contractual transition provisions required the continuation of insurance coverage for beneficiaries through September 30, 2013 and also required an additional period of time thereafter to process residual claims.

Legal Proceedings and Certain Regulatory Matters

Florida Matters

On December 16, 2010, an individual filed a qui tam suit captioned United States of America ex rel. Marc Osheroff v. Humana et al. in the Southern District of Florida, against us, several of our health plan subsidiaries, and certain other companies that operate medical centers in Miami-Dade County, Florida. After the U.S. government declined to intervene, the Court ordered the complaint unsealed, and the individual plaintiff amended his complaint and served the Company on December 8, 2011. The amended complaint alleges certain civil violations by our CAC Medical Centers in Florida, including offering various amenities such as transportation and meals, to Medicare and dual eligible individuals in our community center settings. The amended complaint also alleges civil violations by our Medicare Advantage health plans in Florida, arising from the alleged activities of our CAC Medical Centers and the codefendants in the complaint. The amended complaint seeks damages and penalties on behalf of the United States under the Anti-Inducement and Anti-Kickback Statutes and the False Claims Act. On September 28, 2012, the Court dismissed, with prejudice, all causes of action that were asserted in the suit. On November 19, 2013, the individual plaintiff appealed the dismissal of the complaint, and we are awaiting the decision of the Court on the appeal.

On January 6, 2012, the Civil Division of the United States Attorney’s Office for the Southern District of Florida advised us that it is seeking documents and information from us and several of our affiliates relating to several matters including the coding of medical claims by one or more South Florida medical providers, and loans to physician practices. On May 1, 2014, the U.S. government filed a Notice of Non-Intervention in connection with a civil qui tam suit related to one of these matters captioned United States of America ex rel. Olivia Graves v. Plaza Medical Centers, et al., and the Court ordered the complaint unsealed. Subsequently, the individual plaintiff amended the complaint and served the Company, opting to continue to pursue the action. On October 7, 2014 the Court dismissed the complaint and granted leave to amend. The individual plaintiff filed a second amended complaint on October 23, 2014. We continue to cooperate with and respond to information requests from the U.S. Attorney’s office. These matters could result in additional qui tam litigation.

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Unaudited

Other Lawsuits and Regulatory Matters

Our current and past business practices are subject to review or other investigations by various state insurance and health care regulatory authorities and other state and federal regulatory authorities. These authorities regularly scrutinize the business practices of health insurance and benefits companies. These reviews focus on numerous facets of our business, including claims payment practices, provider contracting, risk adjustment, competitive practices, commission payments, privacy issues, utilization management practices, pharmacy benefits, access to care, and sales practices, among others. Some of these reviews have historically resulted in fines imposed on us and some have required changes to some of our practices. We continue to be subject to these reviews, which could result in additional fines or other sanctions being imposed on us or additional changes in some of our practices.

We also are involved in various other lawsuits that arise, for the most part, in the ordinary course of our business operations, certain of which may be styled as class-action lawsuits. Among other matters, this litigation may include employment matters, claims of medical malpractice, bad faith, nonacceptance or termination of providers, anticompetitive practices, improper rate setting, provider contract rate disputes, failure to disclose network discounts and various other provider arrangements, general contractual matters, intellectual property matters, and challenges to subrogation practices. For example, a number of hospitals and other providers have asserted that, under their network provider contracts, we are not entitled to reduce Medicare Advantage payments to these providers in connection with changes in Medicare payment systems and in accordance with the Balanced Budget and Emergency Deficit Control Act of 1985, as amended (commonly referred to as “sequestration”). Those challenges have led and could lead to arbitration demands or other litigation. Also, under state guaranty assessment laws, we may be assessed (up to prescribed limits) for certain obligations to the policyholders and claimants of insolvent insurance companies that write the same line or lines of business as we do.

As a government contractor, we may also be subject to qui tam litigation brought by individuals who seek to sue on behalf of the government, alleging that the government contractor submitted false claims to the government including, among other allegations, those resulting from coding and review practices under the Medicare risk adjustment model. Qui tam litigation is filed under seal to allow the government an opportunity to investigate and to decide if it wishes to intervene and assume control of the litigation. If the government does not intervene, the lawsuit is unsealed, and the individual may continue to prosecute the action on his or her own, on behalf of the government. We also are subject to other allegations of non-performance of contractual obligations to providers, members, and others, including failure to properly pay claims, improper policy terminations, challenges to our implementation of the Medicare Part D prescription drug program and other litigation.

A limited number of the claims asserted against us are subject to insurance coverage. Personal injury claims, claims for extracontractual damages, care delivery malpractice, and claims arising from medical benefit denials are covered by insurance from our wholly owned captive insurance subsidiary and excess carriers, except to the extent that claimants seek punitive damages, which may not be covered by insurance in certain states in which insurance coverage for punitive damages is not permitted. In addition, insurance coverage for all or certain forms of liability has become increasingly costly and may become unavailable or prohibitively expensive in the future.

We record accruals for the contingencies discussed above to the extent that we conclude it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated. No estimate of the possible loss or range of loss in excess of amounts accrued, if any, can be made at this time regarding the matters specifically described above because of the inherently unpredictable nature of legal proceedings, which also may be exacerbated by various factors, including: (i) the damages sought in the proceedings are unsubstantiated or indeterminate; (ii) discovery is not complete; (iii) the proceeding is in its early stages; (iv) the matters present legal uncertainties; (v) there are significant facts in dispute; (vi) there are a large number of parties (including where it is uncertain how liability, if any, will be shared among multiple defendants); or (vii) there is a wide range of potential outcomes.

The outcome of any current or future litigation or governmental or internal investigations, including the matters described above, cannot be accurately predicted, nor can we predict any resulting penalties, fines or other sanctions that may be imposed at the discretion of federal or state regulatory authorities. Nevertheless, it is reasonably possible that any such outcome of litigation, penalties, fines or other sanctions could be substantial, and the outcome of these

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Humana Inc.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Unaudited

matters may have a material adverse effect on our results of operations, financial position, and cash flows, and may also affect our reputation.

13. SEGMENT INFORMATION

We manage our business with three reportable segments: Retail, Employer Group, and Healthcare Services. In addition, the Other Businesses category includes businesses that are not individually reportable because they do not meet the quantitative thresholds required by generally accepted accounting principles. These segments are based on a combination of the type of health plan customer and adjacent businesses centered on well-being solutions for our health plans and other customers, as described below. These segment groupings are consistent with information used by our Chief Executive Officer to assess performance and allocate resources.

The Retail segment consists of Medicare and commercial fully-insured medical and specialty health insurance benefits, including dental, vision, and other supplemental health and financial protection products, marketed directly to individuals, and includes our contract with CMS to administer the Limited Income Newly Eligible Transition, or LI-NET, prescription drug plan program and contracts with various states to provide Medicaid, dual eligible, and Long-Term Support Services benefits, collectively our state-based contracts. The Employer Group segment consists of Medicare and commercial fully-insured medical and specialty health insurance benefits, including dental, vision, and voluntary benefit products, as well as administrative services only, or ASO, products and our health and wellness products primarily marketed to employer groups. The Healthcare Services segment includes services offered to our health plan members as well as to third parties including pharmacy, provider services, home based services, integrated behavioral health services and predictive modeling and informatics services. The Other Businesses category consists of our military services, primarily our TRICARE South Region contract, closed-block of long-term care insurance policies, and our Puerto Rico Medicaid contracts under which coverage was terminated effective September 30, 2013.

Our Healthcare Services intersegment revenues primarily relate to managing prescription drug coverage for members of our other segments through Humana Pharmacy Solutions®, or HPS, and includes the operations of RightSourceRx®, our mail order pharmacy business. These revenues consist of the prescription price (ingredient cost plus dispensing fee), including the portion to be settled with the member (co-share) or with the government (subsidies), plus any associated administrative fees. Services revenues related to the distribution of prescriptions by third party retail pharmacies in our networks are recognized when the claim is processed and product revenues from dispensing prescriptions from our mail order pharmacies are recorded when the prescription or product is shipped. Our pharmacy operations, which are responsible for designing pharmacy benefits, including defining member co-share responsibilities, determining formulary listings, contracting with retail pharmacies, confirming member eligibility, reviewing drug utilization, and processing claims, act as a principal in the arrangement on behalf of members in our other segments. As principal, our Healthcare Services segment reports revenues on a gross basis including co-share amounts from members collected by third party retail pharmacies at the point of service.

In addition, our Healthcare Services intersegment revenues include revenues earned by certain owned providers derived from risk-based managed care agreements with our health plans. Under these agreements, the provider receives a monthly capitated fee that varies depending on the demographics and health status of the member, for each member assigned to these owned providers by our health plans. The owned provider assumes the economic risk of funding the assigned members’ healthcare services and related administrative costs. Accordingly, our Healthcare Services segment reports provider services related revenues on a gross basis. Capitation fee revenue is recognized in the period in which the assigned members are entitled to receive healthcare services.

We present our consolidated results of operations from the perspective of the health plans. As a result, the cost of providing benefits to our members, whether provided via a third party provider or internally through a stand-alone subsidiary, is classified as benefits expense and excludes the portion of the cost for which the health plans do not bear responsibility, including member co-share amounts and government subsidies of $2.6 billion and $2.0 billion for the three months ended September 30, 2014 and 2013, respectively. For the nine months ended September 30, 2014 and 2013, these amounts were $6.8 billion and $5.2 billion respectively. In addition, depreciation and amortization expense associated with certain businesses in our Healthcare Services segment delivering benefits to our members, primarily associated with our provider services and pharmacy operations, are included with benefits expense. The amount of this

25

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Unaudited

expense was $27 million and $23 million for the three months ended September 30, 2014 and 2013, respectively. For the nine months ended September 30, 2014 and 2013, the amount of this expense was $79 million and $69 million, respectively.

Other than those described previously, the accounting policies of each segment are the same and are described in Note 2 to the consolidated financial statements included in our 2013 Form 10-K. Transactions between reportable segments primarily consist of sales of services rendered by our Healthcare Services segment, primarily pharmacy, provider, and behavioral health services, to our Retail and Employer Group customers. Intersegment sales and expenses are recorded at fair value and eliminated in consolidation. Members served by our segments often use the same provider networks, enabling us in some instances to obtain more favorable contract terms with providers. Our segments also share indirect costs and assets. As a result, the profitability of each segment is interdependent. We allocate most operating expenses to our segments. Assets and certain corporate income and expenses are not allocated to the segments, including the portion of investment income not supporting segment operations, interest expense on corporate debt, and certain other corporate expenses. These items are managed at a corporate level. These corporate amounts are reported separately from our reportable segments and are included with intersegment eliminations in the tables presenting segment results below.

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Humana Inc.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Unaudited

Our segment results were as follows for the three and nine months ended September 30, 2014 and 2013, respectively:

	Retail		Employer Group		Healthcare Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Three months ended September 30, 2014
Revenues - external customers
Premiums:
Medicare Advantage	$	6,508	$	1,381	$	—	$	—	$	—		$	7,889
Medicare stand-alone PDP	804		2		—		—		—			806
Total Medicare	7,312		1,383		—		—		—			8,695
Fully-insured	926		1,335		—		—		—			2,261
Specialty	67		274		—		—		—			341
Military services	—		—		—		5		—			5
Medicaid and other	292		—		—		13		—			305
Total premiums	8,597		2,992		—		18		—			11,607
Services revenue:
Provider	—		6		302		—		—			308
ASO and other	10		84		—		108		—			202
Pharmacy	—		—		26		—		—			26
Total services revenue	10		90		328		108		—			536
Total revenues - external customers	8,607		3,082		328		126		—			12,143
Intersegment revenues
Services	—		22		3,851		—		(3,873		)	—
Products	—		—		968		—		(968		)	—
Total intersegment revenues	—		22		4,819		—		(4,841		)	—
Investment income	19		11		—		15		50			95
Total revenues	8,626		3,115		5,147		141		(4,791		)	12,238
Operating expenses:
Benefits	7,201		2,589		—		27		(151		)	9,666
Operating costs	1,063		487		4,908		96		(4,656		)	1,898
Depreciation and amortization	40		26		37		4		(22		)	85
Total operating expenses	8,304		3,102		4,945		127		(4,829		)	11,649
Income from operations	322		13		202		14		38			589
Interest expense	—		—		—		—		38			38
Income before income taxes	$	322	$	13	$	202	$	14	$	—		$	551

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Humana Inc.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Unaudited

	Retail		Employer Group		Healthcare Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Three months ended September 30, 2013
Revenues - external customers
Premiums:
Medicare Advantage	$	5,552	$	1,193	$	—	$	—	$	—		$	6,745
Medicare stand-alone PDP	740		2		—		—		—			742
Total Medicare	6,292		1,195		—		—		—			7,487
Fully-insured	292		1,278		—		—		—			1,570
Specialty	54		273		—		—		—			327
Military services	—		—		—		6		—			6
Medicaid and other	76		—		—		232		—			308
Total premiums	6,714		2,746		—		238		—			9,698
Services revenue:
Provider	—		6		310		—		—			316
ASO and other	3		84		—		108		—			195
Pharmacy	—		—		17		—		—			17
Total services revenue	3		90		327		108		—			528
Total revenues - external customers	6,717		2,836		327		346		—			10,226
Intersegment revenues
Services	—		14		2,999		—		(3,013		)	—
Products	—		—		716		—		(716		)	—
Total intersegment revenues	—		14		3,715		—		(3,729		)	—
Investment income	19		10		—		15		49			93
Total revenues	6,736		2,860		4,042		361		(3,680		)	10,319
Operating expenses:
Benefits	5,647		2,316		—		230		(118		)	8,075
Operating costs	718		443		3,856		103		(3,580		)	1,540
Depreciation and amortization	33		25		37		5		(17		)	83
Total operating expenses	6,398		2,784		3,893		338		(3,715		)	9,698
Income from operations	338		76		149		23		35			621
Interest expense	—		—		—		—		35			35
Income before income taxes	$	338	$	76	$	149	$	23	$	—		$	586

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Humana Inc.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Unaudited

	Retail		Employer Group		Healthcare Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Nine months ended September 30, 2014
Revenues - external customers
Premiums:
Medicare Advantage	$	19,443	$	4,131	$	—	$	—	$	—		$	23,574
Medicare stand-alone PDP	2,606		6		—		—		—			2,612
Total Medicare	22,049		4,137		—		—		—			26,186
Fully-insured	2,363		3,985		—		—		—			6,348
Specialty	192		824		—		—		—			1,016
Military services	—		—		—		15		—			15
Medicaid and other	667		—		—		42		—			709
Total premiums	25,271		8,946		—		57		—			34,274
Services revenue:
Provider	—		17		899		—		—			916
ASO and other	37		246		—		349		—			632
Pharmacy	—		—		72		—		—			72
Total services revenue	37		263		971		349		—			1,620
Total revenues - external customers	25,308		9,209		971		406		—			35,894
Intersegment revenues
Services	—		57		11,002		—		(11,059		)	—
Products	—		—		2,752		—		(2,752		)	—
Total intersegment revenues	—		57		13,754		—		(13,811		)	—
Investment income	56		32		—		45		145			278
Total revenues	25,364		9,298		14,725		451		(13,666		)	36,172
Operating expenses:
Benefits	21,371		7,417		—		82		(453		)	28,417
Operating costs	2,968		1,478		14,024		301		(13,253		)	5,518
Depreciation and amortization	112		75		108		12		(61		)	246
Total operating expenses	24,451		8,970		14,132		395		(13,767		)	34,181
Income from operations	913		328		593		56		101			1,991
Interest expense	—		—		—		—		108			108
Income (loss) before income taxes	$	913	$	328	$	593	$	56	$	(7	)	$	1,883

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Humana Inc.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Unaudited

	Retail		Employer Group		Healthcare Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Nine months ended September 30, 2013
Revenues - external customers
Premiums:
Medicare Advantage	$	16,860	$	3,543	$	—	$	—	$	—		$	20,403
Medicare stand-alone PDP	2,286		6		—		—		—			2,292
Total Medicare	19,146		3,549		—		—		—			22,695
Fully-insured	856		3,819		—		—		—			4,675
Specialty	155		823		—		—		—			978
Military services	—		—		—		22		—			22
Medicaid and other	227		—		—		670		—			897
Total premiums	20,384		8,191		—		692		—			29,267
Services revenue:
Provider	—		15		928		—		—			943
ASO and other	7		250		—		342		—			599
Pharmacy	—		—		39		—		—			39
Total services revenue	7		265		967		342		—			1,581
Total revenues - external customers	20,391		8,456		967		1,034		—			30,848
Intersegment revenues
Services	—		37		8,706		—		(8,743		)	—
Products	—		—		2,050		—		(2,050		)	—
Total intersegment revenues	—		37		10,756		—		(10,793		)	—
Investment income	55		31		—		45		147			278
Total revenues	20,446		8,524		11,723		1,079		(10,646		)	31,126
Operating expenses:
Benefits	17,272		6,728		—		668		(307		)	24,361
Operating costs	1,971		1,299		11,223		347		(10,393		)	4,447
Depreciation and amortization	97		75		109		13		(51		)	243
Total operating expenses	19,340		8,102		11,332		1,028		(10,751		)	29,051
Income from operations	1,106		422		391		51		105			2,075
Interest expense	—		—		—		—		105			105
Income before income taxes	$	1,106	$	422	$	391	$	51	$	—		$	1,970

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Humana Inc.

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The condensed consolidated financial statements of Humana Inc. in this document present the Company’s financial position, results of operations and cash flows, and should be read in conjunction with the following discussion and analysis. References to “we,” “us,” “our,” “Company,” and “Humana” mean Humana Inc. and its subsidiaries. This discussion includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. When used in filings with the SEC, in our press releases, investor presentations, and in oral statements made by or with the approval of one of our executive officers, the words or phrases like “believes,” “expects,” “anticipates,” “intends,” “likely will result,” “estimates,” “projects” or variations of such words and similar expressions are intended to identify such forward–looking statements. These forward–looking statements are not guarantees of future performance and are subject to risks, uncertainties and assumptions, including, among other things, information set forth in Item 1A. – Risk Factors in our 2013 Form 10-K, as modified by any changes to those risk factors included in this document and in other reports we filed subsequent to February 19, 2014, in each case incorporated by reference herein. In making these statements, we are not undertaking to address or update such forward-looking statements in future filings or communications regarding our business or results. In light of these risks, uncertainties and assumptions, the forward–looking events discussed in this document might not occur. There may also be other risks that we are unable to predict at this time. Any of these risks and uncertainties may cause actual results to differ materially from the results discussed in the forward–looking statements.

Executive Overview

General

Humana Inc., headquartered in Louisville, Ky., is a leading health and well-being company focused on making it easy for people to achieve their best health with clinical excellence through coordinated care. The company’s strategy integrates care delivery, the member experience, and clinical and consumer insights to encourage engagement, behavior change, proactive clinical outreach and wellness for the millions of people we serve across the country.

Our industry relies on two key statistics to measure performance. The benefit ratio, which is computed by taking total benefits expense as a percentage of premiums revenue, represents a statistic used to measure underwriting profitability. The operating cost ratio, which is computed by taking total operating costs as a percentage of total revenue less investment income, represents a statistic used to measure administrative spending efficiency.

Business Segments

On January 1, 2014, we reclassified certain of our businesses from our Healthcare Services segment to our Employer Group segment to correspond with internal management reporting changes. Our reportable segments remain the same and prior period segment financial information has been recast to conform to the 2014 presentation.

We manage our business with three reportable segments: Retail, Employer Group, and Healthcare Services. In addition, the Other Businesses category includes businesses that are not individually reportable because they do not meet the quantitative thresholds required by generally accepted accounting principles. These segments are based on a combination of the type of health plan customer and adjacent businesses centered on well-being solutions for our health plans and other customers, as described below. These segment groupings are consistent with information used by our Chief Executive Officer to assess performance and allocate resources.

The Retail segment consists of Medicare and commercial fully-insured medical and specialty health insurance benefits, including dental, vision, and other supplemental health and financial protection products, marketed directly to individuals, and includes our contract with CMS to administer the Limited Income Newly Eligible Transition, or LI-NET, prescription drug plan program and contracts with various states to provide Medicaid, dual eligible, and Long-Term Support Services benefits, collectively our state-based contracts. The Employer Group segment consists of Medicare and commercial fully-insured medical and specialty health insurance benefits, including dental, vision, and voluntary benefit products, as well as administrative services only, or ASO, products and our health and wellness products primarily marketed to employer groups. The Healthcare Services segment includes services offered to our health plan members as well as to third parties including pharmacy, provider services, home based services, integrated behavioral health services and predictive modeling and informatics services. The Other Businesses category consists

31

of our military services, primarily our TRICARE South Region contract, closed-block of long-term care insurance policies, and our Puerto Rico Medicaid contracts under which coverage was terminated effective September 30, 2013.

The results of each segment are measured by income before income taxes. Transactions between reportable segments primarily consist of sales of services rendered by our Healthcare Services segment, primarily pharmacy, provider, and behavioral health services, to our Retail and Employer Group customers. Intersegment sales and expenses are recorded at fair value and eliminated in consolidation. Members served by our segments often use the same provider networks, enabling us in some instances to obtain more favorable contract terms with providers. Our segments also share indirect costs and assets. As a result, the profitability of each segment is interdependent. We allocate most operating expenses to our segments. Assets and certain corporate income and expenses are not allocated to the segments, including the portion of investment income not supporting segment operations, interest expense on corporate debt, and certain other corporate expenses. These items are managed at a corporate level. These corporate amounts are reported separately from our reportable segments and are included with intersegment eliminations.

Seasonality

One of the product offerings of our Retail segment is Medicare stand-alone prescription drug plans, or PDPs, under the Medicare Part D program. These plans provide varying degrees of coverage. Our quarterly Retail segment earnings and operating cash flows are impacted by the Medicare Part D benefit design and changes in the composition of our membership. The Medicare Part D benefit design results in coverage that varies as a member’s cumulative out-of-pocket costs pass through successive stages of a member’s plan period, which begins annually on January 1 for renewals. These plan designs generally result in us sharing a greater portion of the responsibility for total prescription drug costs in the early stages and less in the latter stages. As a result, the PDP benefit ratio generally decreases as the year progresses. In addition, the number of low-income senior members as well as year-over-year changes in the mix of membership in our stand-alone PDP products affects the quarterly benefit ratio pattern.

Our Employer Group segment also experiences seasonality in the benefit ratio pattern. However, the effect is opposite of Medicare stand-alone PDP in the Retail segment, with the Employer Group’s benefit ratio increasing as fully-insured members progress through their annual deductible and maximum out-of-pocket expenses. Similarly, certain of our fully-insured individual commercial medical products in our Retail segment experience seasonality in the benefit ratio akin to the Employer Group segment; however, we expect our new plans compliant with the Health Care Reform Law to experience less seasonality than our historical individual commercial medical products.

In addition, the Retail segment also experiences seasonality in the operating cost ratio as a result of costs incurred in the second half of the year associated with the Medicare and individual health care exchange marketing seasons.

2014 Highlights

Consolidated

• Our 2014 results reflect the continued implementation of our strategy to offer our members affordable health care combined with a positive consumer experience in growing markets. At the core of this strategy is our integrated care delivery model, which unites quality care, high member engagement, and sophisticated data analytics. Our approach to primary, physician-directed care for our members aims to provide quality care that is consistent, integrated, cost-effective, and member-focused, provided by both employed physicians and physicians with network contract arrangements. The model is designed to improve health outcomes and affordability for individuals and for the health system as a whole, while offering our members a simple, seamless healthcare experience. We believe this strategy is positioning us for long-term growth in both membership and earnings. At September 30, 2014, approximately 689,900 members, or 28.5%, of our individual Medicare Advantage membership were in risk arrangements under our integrated care delivery model, as compared to 561,500 members, or 27.1%, at December 31, 2013 and 550,600 members, or 26.9%, at September 30, 2013.

• Our results for the three and nine months ended September 30, 2014 as compared to the three and nine months ended September 30, 2013, were impacted by investments in health care exchanges and state-based contracts

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as well as higher specialty prescription drug costs associated with a new treatment for Hepatitis C, partially offset by membership growth in our Medicare Advantage, Medicare stand-alone PDP, and individual commercial medical offerings as well as improved utilization from increased membership in our clinical programs.

• Year-over-year comparisons of the operating cost ratio are impacted by fees mandated by the Health Care Reform Law beginning in 2014, including the non-deductible health insurance industry fee. Likewise, year-over-year comparisons of the benefit ratio reflect the inclusion of these mandated fees in the pricing of our products for 2014.

• Year-over-year comparisons of diluted earnings per common share are favorably impacted by a lower number of shares used to compute diluted earnings per common share reflecting the impact of share repurchases.

• Our operating cash flow was $1.4 billion for the nine months ended September 30, 2014 compared to operating cash flow of $1.7 billion for the nine months ended September 30, 2013. Our operating cash flows for the nine months ended September 30, 2014 reflect the payment of the non-deductible health insurance industry fee, lower net income, enrollment activity, and the timing of working capital items including the timing of receipts and payments under certain provisions of the Health Care Reform Law that became effective in 2014. For 2014, the effect of the commercial risk adjustment, risk corridor, and reinsurance provisions of the Health Care Reform Law are impacting the timing of our operating cash flows, as we build a receivable in 2014 that will be collected in 2015. For the full year 2014, we expect our operating cash flows to decline from 2013.

• Our 2014 financing cash flows have been negatively impacted by the timing of payments to and receipts from CMS associated with Medicare Part D reinsurance subsidies for which we do not assume risk. Claims payments werehigher than receipts from CMS associated with Medicare Part D claim subsidies for which we do not assume risk by $761 million during the 2014 period and $191 million during the 2013 period. We are experiencing higher specialty prescription drug costs associated with a new treatment for Hepatitis C than were contemplated in our bids which is resulting in higher reinsurance subsidy receivable balances in 2014 that will be settled in 2015 under the terms of our contracts with CMS.

• In September 2014, we paid the federal government $562 million for the annual health insurance industry fee. This fee is not deductible for tax purposes, which has significantly increased our effective income tax rate in 2014. The health insurance industry fee is further described below under the section titled “Health Care Reform.”

• In September 2014, we issued $400 million of 2.625% senior notes due October 1, 2019, $600 million of 3.85% senior notes due October 1, 2024 and $750 million of 4.95% senior notes due October 1, 2044. Our net proceeds, reduced for the underwriters' discount and commission and offering expenses, were $1.73 billion. We used a portion of the net proceeds to redeem the 6.45% senior unsecured notes as discussed below, and intend to use some or all of the remaining net proceeds to repurchase shares of our common stock and for general corporate purposes.

• In October 2014, we redeemed the $500 million 6.45% senior unsecured notes due June 1, 2016, at 100% of the principal amount plus applicable premium for early redemption and accrued and unpaid interest to the redemption date, for cash totaling approximately $560 million. We recognized a loss on extinguishment of debt of approximately $37 million, or $0.15 per diluted common share, in October 2014 for the redemption of these notes.

• During the nine months ended September 30, 2014, we repurchased 1.87 million shares in open market transactions for $230 million and paid dividends to stockholders of $129 million.

• In September 2014, the Board of Directors replaced a previous share repurchase authorization of up to $1 billion (of which $816 million remained unused) with a new authorization for repurchases of up to $2 billion of our common shares exclusive of shares repurchased in connection with employee stock plans, expiring on December 31, 2016. We intend to repurchase $1 billion of shares (of the $2 billion authorized in September

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2014) no later than June 30, 2015. During the period commencing on October 1, 2014 and ending on November 6, 2014, we repurchased 0.77 million shares in open market transactions for $100 million at an average price of $130.50 under the current authorization. As of November 7, 2014, the remaining authorized amount under the new authorization totaled $1.87 billion.

• On November 7, 2014, we announced that we intend to enter into an agreement with a third party financial institution to effect a $500 million accelerated stock repurchase program. We will repurchase shares through the program as part of the $2 billion authorized in September 2014. The actual number of shares repurchased under the agreement will be determined based on a volume-weighted average price of our common stock during the purchase period.

Retail

• On April 7, 2014, CMS announced final 2015 Medicare benchmark payment rates and related technical factors impacting the bid benchmark premiums, which we refer to as the Final Rate Notice. We believe the Final Rate Notice together with the impact of payment cuts associated with the Health Care Reform Law, quality bonuses, sunset of the Star quality CMS demonstration in 2015, risk coding modifications, the impact of the health insurance industry fee, and other funding formula changes, indicate 2015 Medicare Advantage funding cuts of approximately 2%. While we believe our senior members’ benefits may be adversely impacted, we believe we can effectively design Medicare Advantage products based upon these levels of rate reduction while continuing to remain competitive compared to both the combination of original Medicare with a supplement policy as well as Medicare Advantage products offered by our competitors. Failure to execute these strategies may result in a material adverse effect on our results of operations, financial position, and cash flows.

• Automatic across-the-board budget cuts under the Budget Control Act of 2011 and the American Taxpayer Relief Act of 2012, known as “sequestration,” commenced in March 2013, including a 2% reduction in Medicare Advantage and Medicare Part D payments beginning April 1, 2013. While we believe we can reduce Medicare Advantage payments to providers under our network provider contracts in connection with sequestration, a number of hospitals and other providers have asserted that we are not entitled to do so, which have led, and may lead, to arbitration demands or other litigation regarding these matters.

• For the nine months ended September 30, 2014, our Retail segment pretax income declined by $193 million, or 17.5%, primarily driven by the same factors impacting our consolidated results as described above.

• Individual Medicare Advantage membership of 2,417,900 at September 30, 2014 increased 349,200, or 16.9%, from 2,068,700 at December 31, 2013 and increased 373,500 members, or 18.3%, from 2,044,400 at September 30, 2013 reflecting net membership additions, particularly for our Health Maintenance Organization, or HMO, offerings for the 2014 plan year as well as dual eligible members from state-based contracts in Virginia and Illinois.

• Medicare stand-alone PDP membership of 3,936,400 at September 30, 2014 increased 664,700 members, or 20.3%, from 3,271,700 at December 31, 2013 and increased 681,300 members, or 20.9%, from 3,255,100 at September 30, 2013 reflecting net membership additions, primarily for our Humana-Walmart plan offering for the 2014 plan year.

• Our state-based Medicaid membership as of September 30, 2014 increased 201,200 members compared to September 30, 2013, primarily due to the addition of members under our Florida Medicaid and Florida Long-Term Support Services contracts.

• Individual commercial medical membership of 1,215,000 at September 30, 2014 increased 614,900 members, or 102.5%, from 600,100 at December 31, 2013 and increased 629,700 members, or 107.6%, from 585,300 at September 30, 2013 primarily reflecting new sales, both on-exchange and off-exchange, of plans compliant with the Health Care Reform Law. At September 30, 2014, individual commercial medical membership in plans compliant with the Health Care Reform Law, both on-exchange and off-exchange, was 727,800 members. In addition, federal and state regulatory changes in December 2013 allowed certain individuals to remain in

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their existing underwritten health plans that are not compliant with the Health Care Reform Law, which has led to much higher than previously expected retention of our existing underwritten health plans. We believe that this is occurring at other health insurance issuers as well and will result in an overall deterioration of the risk pool in plans compliant with the Health Care Reform Law, as more previously underwritten members remain with their current health plans rather than enter the exchanges. However, we expect that the commercial risk adjustment, risk corridor, and reinsurance provisions of the Health Care Reform Law will mitigate this deterioration to some extent.

Employer Group Segment

• For the nine months ended September 30, 2014, our Employer Group segment pretax income decreased$94 million, or 22.3%, primarily due to a higher benefit ratio year-over-year as a result of higher utilization, mainly due to higher specialty prescription drug costs associated with a new treatment for Hepatitis C, as well as the continuing impact of transitional policy changes. The Employer Group segment benefit ratio increased 220 basis points to 86.5% for the three months ended September 30, 2014 and increased 80 basis points to 82.9% for the nine months ended September 30, 2014.

• Fully-insured group Medicare Advantage membership of 484,900 at September 30, 2014 increased 55,800 members, or 13.0%, from 429,100 at December 31, 2013 and increased 59,500 members, or 14.0%, from 425,400 at September 30, 2013 primarily due to the January 2014 addition of a new large group account.

• Membership in HumanaVitality®, our wellness and loyalty rewards program, rose 35.6% to 3,838,800 at September 30, 2014 from 2,831,000 at December 31, 2013 and rose 39.4% from 2,753,900 at September 30, 2013 primarily due to the addition of group Medicare members as well as individual Medicare Advantage and fully-insured individual commercial medical membership growth.

Healthcare Services Segment

• As discussed in the detailed Healthcare Services segment results of operations discussion that follows, our Healthcare Services segment pretax income increased $53 million, or 35.6%, and $202 million, or 51.7%, for the three and nine months ended September 30, 2014, respectively, as compared to the three and nine months ended September 30, 2013. These increases primarily were due to an operating cost ratio that remained unchanged year-over-year for the three months ended September 30, 2014 and declined for the nine months ended September 30, 2014 on a revenue base that reflects growth from our pharmacy solutions and home based services businesses as they serve our growing Medicare membership.

• Programs to enhance the quality of care for members are key elements of our integrated care delivery model. We have accelerated our process for identifying and reaching out to members in need of clinical intervention. At September 30, 2014, we had approximately 379,900 members with complex chronic conditions in the Humana Chronic Care Program, a 35.6%increase compared with approximately 280,200 members at December 31, 2013, and an increase of 53.2% compared with approximately 248,000 members at September 30, 2013. These increases reflect enhanced predictive modeling capabilities and focus on proactive clinical outreach and member engagement, particularly for our Medicare Advantage membership. We believe these initiatives lead to better health outcomes for our members and lower health care costs.

Other Businesses

• Year-over-year comparisons within Other Businesses are impacted by the loss of our Medicaid contracts in Puerto Rico effective September 30, 2013 and a reduction in benefits expense for the nine months ended September 30, 2013 related to a favorable settlement of contract claims with the United States Department of Defense, or DoD, associated with previously disclosed litigation.

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Health Care Reform

The Health Care Reform Law enacted significant reforms to various aspects of the U.S. health insurance industry. While regulations and interpretive guidance on many provisions of the Health Care Reform Law have been issued to date by the Department of Health and Human Services, or HHS, the Department of Labor, the Treasury Department, and the National Association of Insurance Commissioners, or NAIC, there are certain provisions of the law that will require additional guidance and clarification in the form of regulations and interpretations in order to fully understand the impact of the law on our overall business.

Implementation dates of the Health Care Reform Law began in September 2010 and will continue through 2018, and many aspects of the Health Care Reform Law are already effective and have been implemented by us. Certain significant provisions of the Health Care Reform Law include, among others, mandated coverage requirements, mandated benefits and guarantee issuance associated with commercial medical insurance, rebates to policyholders based on minimum benefit ratios, adjustments to Medicare Advantage premiums, the establishment of federally-facilitated or state-based exchanges coupled with programs designed to spread risk among insurers, an annual insurance industry premium-based assessment, and a three-year commercial reinsurance fee. The following outlines certain provisions of the Health Care Reform Law:

• Currently Effective with Phased-In Implementation: In 2012, additional cuts to Medicare Advantage plan payment benchmarks began to take effect (with plan payment benchmarks ultimately ranging from 95% in high-cost areas to 115% in low-cost areas of Medicare fee-for-service rates), with changes being phased-in over two to six years, depending on the level of payment reduction in a county. In addition, since 2011 the gap in coverage for Medicare Part D prescription drug coverage has been incrementally closing.

Certain provisions in the Health Care Reform Law tie Medicare Advantage premiums to the achievement of certain quality performance measures (Star Ratings). Beginning in 2012, Medicare Advantage plans with an overall Star Rating of three or more stars (out of five) were eligible for a quality bonus in their basic premium rates. By law, quality bonuses were limited to the few plans that achieved four or more stars as an overall rating, but CMS, through its demonstration authority, expanded the quality bonus to three Star plans for a three-year period through 2014. Beginning in 2015, quality bonus amounts will be determined by the provisions in the Health Care Reform Law. In part, this means that plans must have a Star Rating of four or higher to qualify for bonus money. Star Ratings issued by CMS in October 2014 indicated that plans covering 92% of our Medicare Advantage membership for the 2015 plan year achieved a Star Rating of 4.0 or higher. Beginning in 2015, plans must have a Star Rating of four or higher to qualify for quality bonuses in the basic premium rates. We have 23 Medicare Advantage plans that achieved a rating of four or more stars, an increase from 18 the previous year. We are offering one Medicare Advantage plan that achieved a 5.0 Star Rating, our CarePlus Health Plans, Inc. HMO plan in Florida, as well as five Medicare Advantage plans that achieved a 4.5 Star Rating. Plans that earn an overall Star Rating of five become eligible to enroll members year round. Notwithstanding successful historical efforts to improve our Star Ratings and other quality measures, there can be no assurances that we will be successful in maintaining or improving our Star Ratings in future years. Additionally, as a result of the expiration of a CMS quality bonus demonstration, for plans that maintain a four Star or higher rating in 2015, other provisions of the Health Care Reform Law may, in certain areas of the country, reduce the amount of the quality bonus that is added to the basic premium rate. Accordingly, our plans may not be eligible for full level quality bonuses, which, in isolation, could adversely affect the benefits such plans can offer, reduce membership, and/or reduce profit margins.

In addition, on March 31, 2014, with certain exceptions, we completed the initial open enrollment period for plans offered through federally-facilitated, federal-state partnerships or state-based exchanges for individuals in certain metropolitan areas in the 14 states where we have public exchange offerings.

• Newly Effective in 2014: Beginning in 2014, the Health Care Reform Law requires: all individual and group health plans to guarantee issuance and renew coverage without pre-existing condition exclusions or health-status rating adjustments; the elimination of annual limits on coverage on certain benefits; the establishment of federally-facilitated, federal-state partnerships or state-based exchanges for individuals and small employers (with up to 100 employees) coupled with programs designed to spread risk among insurers; the introduction

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of plan designs based on set actuarial values; the establishment of a minimum benefit ratio of 85% for Medicare Advantage plans; and insurance industry assessments, including an annual health insurance industry fee and a three-year $25 billion industry wide commercial reinsurance fee. The annual health insurance industry fee levied on the insurance industry is $8 billion in 2014 with increasing annual amounts thereafter, growing to $14 billion by 2017, and is not deductible for income tax purposes, which will significantly increase our effective income tax rate in 2014 to approximately 46% to 47%. In addition, statutory accounting for the health insurance industry fee requires us to restrict surplus in the year preceding payment of the health insurance industry fee beginning in 2014. Accordingly, in addition to recording the full-year 2014 assessment in the first quarter of 2014, we are required to restrict surplus for the 2015 assessment ratably in 2014. In 2014, we paid the federal government $562 million for the annual health insurance industry fee. In 2015, the health insurance industry fee increases by 41% for the industry taken as a whole. Accordingly, absent changes in market share, we would expect a 41% increase in our fee in 2015.

The Health Care Reform Law also specifies benefit design guidelines, limits rating and pricing practices, encourages additional competition from the establishment of two multi-state plans (one not-for-profit; one for-profit) administered through the Office of Personnel Management, and expands eligibility for Medicaid programs. In addition, the Health Care Reform Law has increased and will continue to increase federal oversight of health plan premium rates and could adversely affect our ability to appropriately adjust health plan premiums on a timely basis. Financing for these reforms comes, in part, from material additional fees and taxes on us (as discussed above) and other health plans and individuals beginning in 2014, as well as reductions in certain levels of payments to us and other health plans under Medicare as described in this report.

As discussed above, implementing regulations and related interpretive guidance continue to be issued on certain provisions of the Health Care Reform Law. Given the breadth of possible changes and the uncertainties of interpretation, implementation, and timing of these changes, the Health Care Reform Law has and will change the way we do business, impacting our pricing, benefit design, product mix, geographic mix, and distribution channels. The response of other companies to the Health Care Reform Law and adjustments to their and our offerings could cause meaningful disruption in local health care markets. It is reasonably possible that the Health Care Reform Law and related regulations, as well as future legislative changes, including legislative restrictions on our ability to manage our provider network or otherwise operate our business, or regulatory restrictions on profitability, including by comparison of our Medicare Advantage profitability to our non-Medicare Advantage business profitability and a requirement that they remain within certain ranges of each other, in the aggregate may have a material adverse effect on our results of operations (including restricting revenue, enrollment and premium growth in certain products and market segments, restricting our ability to expand into new markets, increasing our medical and operating costs, further lowering our Medicare payment rates and increasing our expenses associated with the non-deductible health insurance industry fee and other assessments); our financial position (including our ability to maintain the value of our goodwill); and our cash flows (including the receipt of amounts due under the commercial risk adjustment, risk corridor, and reinsurance provisions of the Health Care Reform Law in 2015 related to claims paid in 2014, which payments may be subject to the requisite appropriation of funds by Congress). If we are unable to adjust our business model to address the non-deductible health insurance industry fee and other assessments, including the three-year commercial reinsurance fee, such as through the reduction of our operating costs or adjustments to premium pricing or benefit design, there can be no assurance that the non-deductible health insurance industry fee and other assessments would not have a material adverse effect on our results of operations, financial position, and cash flows.

We intend for the discussion of our financial condition and results of operations that follows to assist in the understanding of our financial statements and related changes in certain key items in those financial statements from year to year, including the primary factors that accounted for those changes. Transactions between reportable segments primarily consist of sales of services rendered by our Healthcare Services segment, primarily pharmacy, provider, and behavioral health services, to our Retail and Employer Group customers and are described in Note 13 to the condensed consolidated financial statements.

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Comparison of Results of Operations for 2014 and 2013

The following discussion primarily deals with our results of operations for the three months ended September 30, 2014, or the 2014 quarter, the three months ended September 30, 2013, or the 2013 quarter, the nine months ended September 30, 2014, or the 2014 period, and the nine months ended September 30, 2013, or the 2013 period.

Consolidated

	For the three months ended September 30,						Change
	2014			2013			Dollars			Percentage
	(dollars in millions, except per common share results)
Revenues:
Premiums:
Retail	$	8,597		$	6,714		$	1,883		28.0	%
Employer Group	2,992			2,746			246			9.0	%
Other Businesses	18			238			(220		)	(92.4	)%
Total premiums	11,607			9,698			1,909			19.7	%
Services:
Retail	10			3			7			233.3	%
Employer Group	90			90			—			—	%
Healthcare Services	328			327			1			0.3	%
Other Businesses	108			108			—			—	%
Total services	536			528			8			1.5	%
Investment income	95			93			2			2.2	%
Total revenues	12,238			10,319			1,919			18.6	%
Operating expenses:
Benefits	9,666			8,075			1,591			19.7	%
Operating costs	1,898			1,540			358			23.2	%
Depreciation and amortization	85			83			2			2.4	%
Total operating expenses	11,649			9,698			1,951			20.1	%
Income from operations	589			621			(32		)	(5.2	)%
Interest expense	38			35			3			8.6	%
Income before income taxes	551			586			(35		)	(6.0	)%
Provision for income taxes	261			218			43			19.7	%
Net income	$	290		$	368		$	(78	)	(21.2	)%
Diluted earnings per common share	$	1.85		$	2.31		$	(0.46	)	(19.9	)%
Benefit ratio(a)	83.3		%	83.3		%				—	%
Operating cost ratio(b)	15.6		%	15.1		%				0.5	%
Effective tax rate	47.5		%	37.2		%				10.3	%

(a) Represents total benefits expense as a percentage of premiums revenue.

(b) Represents total operating costs as a percentage of total revenues less investment income.

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	For the nine months ended September 30,						Change
	2014			2013			Dollars			Percentage
	(dollars in millions, except per common share results)
Revenues:
Premiums:
Retail	$	25,271		$	20,384		$	4,887		24.0	%
Employer Group	8,946			8,191			755			9.2	%
Other Businesses	57			692			(635		)	(91.8	)%
Total premiums	34,274			29,267			5,007			17.1	%
Services:
Retail	37			7			30			428.6	%
Employer Group	263			265			(2		)	(0.8	)%
Healthcare Services	971			967			4			0.4	%
Other Businesses	349			342			7			2.0	%
Total services	1,620			1,581			39			2.5	%
Investment income	278			278			—			—	%
Total revenues	36,172			31,126			5,046			16.2	%
Operating expenses:
Benefits	28,417			24,361			4,056			16.6	%
Operating costs	5,518			4,447			1,071			24.1	%
Depreciation and amortization	246			243			3			1.2	%
Total operating expenses	34,181			29,051			5,130			17.7	%
Income from operations	1,991			2,075			(84		)	(4.0	)%
Interest expense	108			105			3			2.9	%
Income before income taxes	1,883			1,970			(87		)	(4.4	)%
Provision for income taxes	881			709			172			24.3	%
Net income	$	1,002		$	1,261		$	(259	)	(20.5	)%
Diluted earnings per common share	$	6.39		$	7.90		$	(1.51	)	(19.1	)%
Benefit ratio(a)	82.9		%	83.2		%				(0.3	)%
Operating cost ratio(b)	15.4		%	14.4		%				1.0	%
Effective tax rate	46.8		%	36.0		%				10.8	%

(a) Represents total benefits expense as a percentage of premiums revenue.

(b) Represents total operating costs as a percentage of total revenues less investment income.

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Summary

Net income was $290 million, or $1.85 per diluted common share, in the 2014 quarter compared to $368 million, or $2.31 per diluted common share, in the 2013 quarter. Net income was $1.0 billion, or $6.39 per diluted common share, in the 2014 period compared to $1.3 billion, or $7.90 per diluted common share, in the 2013 period. These decreases were primarily due to investments in health care exchanges and state-based contracts as well as higher specialty prescription drug costs associated with a new treatment for Hepatitis C. These items were partially offset by membership growth in our Medicare Advantage, Medicare stand-alone PDP, and individual commercial medical offerings as well as improved utilization from increased membership in our clinical programs. Year-over-year comparisons were also negatively impacted by sequestration which became effective April 1, 2013. In addition, our diluted earnings per common share for the 2013 period included the benefit of a reduction in benefits expense related to a favorable settlement of contract claims with the DoD. Year-over-year comparisons of diluted earnings per common share are also favorably impacted by a lower number of shares used to compute diluted earnings per common share in the 2014 quarter and period reflecting the impact of share repurchases.

Premiums

Consolidated premiums increased $1.9 billion, or 19.7%, from the 2013 quarter to $11.6 billion for the 2014 quarter and increased $5.0 billion, or 17.1%, from the 2013 period to $34.3 billion for the 2014 period. These increases are primarily due to increases in both Retail and Employer Group segment premiums mainly driven by higher average individual and group Medicare Advantage membership as well as higher individual commercial medical membership. In addition, year-over-year comparisons to the 2013 period were negatively impacted by sequestration which became effective April 1, 2013. Premiums revenue for our Other Businesses declined primarily due to the loss of our Puerto Rico Medicaid contracts effective September 30, 2013. Average membership is calculated by summing the ending membership for each month in a period and dividing the result by the number of months in a period. Premiums revenue reflects changes in membership and average per member premiums. Items impacting average per member premiums include changes in premium rates as well as changes in the geographic mix of membership, the mix of product offerings, and the mix of benefit plans selected by our membership.

Services revenue

Consolidated services revenue increased $8 million, or 1.5%, from the 2013 quarter to $536 million for the 2014 quarter and increased $39 million, or 2.5%, from the 2013 period to $1.6 billion for the 2014 period. These increases are primarily due to an increase in services revenue in our Retail segment due to the acquisition of American Eldercare in September 2013.

Investment income

Investment income totaled $95 million for the 2014 quarter compared to $93 million for the 2013 quarter as higher average invested balances were partially offset by lower interest rates. Investment income was $278 million for both the 2014 period and the 2013 period.

Benefits expense

Consolidated benefits expense was $9.7 billion for the 2014 quarter, an increase of $1.6 billion, or 19.7%, from the 2013 quarter. For the 2014 period, benefits expense was $28.4 billion, an increase of $4.1 billion, or 16.6%, from the 2013 period. These increases are primarily due to increases in both Retail and Employer Group segments mainly driven by higher average individual and group Medicare Advantage membership as well as higher individual commercial medical membership. We experienced favorable medical claims reserve development related to prior fiscal years of $94 million in the 2014 quarter as compared to $66 million in the 2013 quarter, and $440 million in the 2014 period as compared to $432 million in the 2013 period.

The consolidated benefit ratio remained flat at 83.3% for both the 2014 and 2013 quarters. The consolidated benefit ratio for the 2014 period was 82.9%, a 30 basis point decrease from the 2013 period. The decrease in the 2014 period is primarily due to a decline in the Retail segment ratio as well as the loss of our Medicaid contracts in Puerto Rico effective September 30, 2013 which more than offset a higher ratio year-over-year in the Employer Group segment.

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Operating costs

Our segments incur both direct and shared indirect operating costs. We allocate the indirect costs shared by the segments primarily as a function of revenues. As a result, the profitability of each segment is interdependent.

Consolidated operating costs increased $358 million, or 23.2%, during the 2014 quarter compared to the 2013 quarter and increased $1.1 billion, or 24.1%, during the 2014 period compared to the 2013 period. These increases are primarily due to costs mandated by the Health Care Reform Law, including the non-deductible health insurance industry fee, and investments in health care exchanges and state-based contracts, partially offset by operating cost efficiencies.

The consolidated operating cost ratio for the 2014 quarter was 15.6%, increasing50 basis points from the 2013 quarter. The consolidated operating cost ratio for the 2014 period was 15.4%, increasing100 basis points from the 2014 period. These increases are primarily due to increases in the operating cost ratios in our Retail and Employer Group segments due to the same factors impacting consolidated operating costs as described above.

Depreciation and amortization

Depreciation and amortization for the 2014 quarter totaled $85 million, comparable to $83 million for the 2013 quarter. For the 2014 period, depreciation and amortization of $246 million compared to $243 million for the 2013 period.

Interest expense

Interest expense for the 2014 quarter totaled $38 million, compared to $35 million for the 2013 quarter. For the 2014 period, interest expense totaled $108 million compared to $105 million for the 2013 period.

Income Taxes

Our effective tax rate during the 2014 quarter was 47.5% compared to the effective tax rate of 37.2% in the 2013 quarter. For the 2014 period our effective tax rate was 46.8% compared to the effective tax rate of 36.0% for the 2013 period. The non-deductible nature of the health insurance industry fee levied on the insurance industry beginning in 2014 as mandated by the Health Care Reform Law increased our effective tax rate by approximately 10 percentage points for the 2014 period. In addition, the effective tax for the 2013 quarter and 2013 period includes the beneficial effect of a change in our estimated tax liability associated with limitations on the deductibility of annual compensation in excess of $500,000 per employee as mandated by the Health Care Reform Law.

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Retail Segment

	September 30,		Change
	2014	2013	Members	Percentage
Membership:
Medical membership:
Individual Medicare Advantage	2,417,900	2,044,400	373,500	18.3	%
Medicare stand-alone PDP	3,936,400	3,255,100	681,300	20.9	%
Total Retail Medicare	6,354,300	5,299,500	1,054,800	19.9	%
Individual commercial (a)	1,215,000	585,300	629,700	107.6	%
State-based Medicaid	281,200	80,000	201,200	251.5	%
Total Retail medical members	7,850,500	5,964,800	1,885,700	31.6	%
Individual specialty membership (b)	1,219,500	1,039,900	179,600	17.3	%

(a) Individual commercial medical membership includes Medicare Supplement members.

(b) Specialty products include dental, vision, and other supplemental health and financial protection products. Members included in these products may not be unique to each product since members have the ability to enroll in multiple products.

	For the three months ended September 30,						Change
	2014			2013			Dollars			Percentage
	(in millions)
Premiums and Services Revenue:
Premiums:
Individual Medicare Advantage	$	6,508		$	5,552		$	956		17.2	%
Medicare stand-alone PDP	804			740			64			8.6	%
Total Retail Medicare	7,312			6,292			1,020			16.2	%
Individual commercial	926			292			634			217.1	%
State-based Medicaid	292			76			216			284.2	%
Individual specialty	67			54			13			24.1	%
Total premiums	8,597			6,714			1,883			28.0	%
Services	10			3			7			233.3	%
Total premiums and services revenue	$	8,607		$	6,717		$	1,890		28.1	%
Income before income taxes	$	322		$	338		$	(16	)	(4.7	)%
Benefit ratio	83.8		%	84.1		%				(0.3	)%
Operating cost ratio	12.4		%	10.7		%				1.7	%

42

	For the nine months ended September 30,						Change
	2014			2013			Dollars			Percentage
	(in millions)
Premiums and Services Revenue:
Premiums:
Individual Medicare Advantage	$	19,443		$	16,860		$	2,583		15.3	%
Medicare stand-alone PDP	2,606			2,286			320			14.0	%
Total Retail Medicare	22,049			19,146			2,903			15.2	%
Individual commercial	2,363			856			1,507			176.1	%
State-based Medicaid	667			227			440			193.8	%
Individual specialty	192			155			37			23.9	%
Total premiums	25,271			20,384			4,887			24.0	%
Services	37			7			30			428.6	%
Total premiums and services revenue	$	25,308		$	20,391		$	4,917		24.1	%
Income before income taxes	$	913		$	1,106		$	(193	)	(17.5	)%
Benefit ratio	84.6		%	84.7		%				(0.1	)%
Operating cost ratio	11.7		%	9.7		%				2.0	%

Pretax Results

• Retail segment pretax income was $322 million in the 2014 quarter, a decrease of $16 million, or 4.7%, compared to $338 million in the 2013 quarter. Retail segment pretax income was $913 million in the 2014 period, a decrease of $193 million, or 17.5%, compared to $1.1 billion in the 2013 period. These decreases are primarily driven by investment spending for health care exchanges and state-based contracts and higher specialty prescription drug costs associated with a new treatment for Hepatitis C, partially offset by Medicare Advantage and individual commercial medical membership growth as well as improved utilization from increased membership in our clinical programs.

Enrollment

• Individual Medicare Advantage membership increased373,500 members, or 18.3%, from September 30, 2013 to September 30, 2014 reflecting net membership additions, particularly for our HMO offerings, for the 2014 plan year as well as dual eligible members from state-based contracts in Virginia and Illinois. Individual Medicare Advantage membership at September 30, 2014 includes 15,100 dual eligible members from state-based contracts.

• Medicare stand-alone PDP membership increased681,300 members, or 20.9%, from September 30, 2013 to September 30, 2014 reflecting net membership additions, primarily for our Humana-Walmart plan offering, for the 2014 plan year.

• Individual commercial medical membership increased629,700 members, or 107.6%, from September 30, 2013 to September 30, 2014 primarily reflecting new sales, both on-exchange and off-exchange, of plans compliant with the Health Care Reform Law.

• State-based Medicaid membership increased201,200 members, or 251.5%, from September 30, 2013 to September 30, 2014, primarily driven by the addition of members under our Florida Medicaid and Florida Long-Term Support Services contracts.

• Individual specialty membership increased179,600 members, or 17.3%, from September 30, 2013 to September 30, 2014 primarily driven by increased membership in dental and vision offerings.

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Premiums

• Retail segment premiums increased $1.9 billion, or 28.0%, from the 2013 quarter to the 2014 quarter and increased $4.9 billion, or 24.0% from the 2013 period to the 2014 period. These increases primarily were due to an 18.0% and 16.6% increase for the quarter and period, respectively, in average individual Medicare Advantage membership as well as individual commercial medical membership growth, primarily on the health care exchanges. Individual Medicare Advantage per member premiums decreased approximately 0.7% in the 2014 quarter as compared to the 2013 quarter and decreased approximately 1.1% in the 2014 period compared to the 2013 period primarily due to Medicare rate reductions. In addition, the decrease in the 2014 period reflects the impact of sequestration which became effective April 1, 2013.

Benefits expense

• The Retail segment benefit ratio decreased30 basis points from 84.1% in the 2013 quarter to 83.8% in the 2014 quarter and decreased10 basis points from the 2013 period to 84.6% in the 2014 period. The decreases primarily were due to improved utilization from increased membership in our clinical programs and the inclusion of the health insurance industry fee in the pricing of our products, partially offset by higher specialty prescription drug costs associated with a new treatment for Hepatitis C, higher planned clinical investment spending, and higher benefit ratios associated with members from state-based contracts.

• The Retail segment’s pretax income for the 2014 quarter included the beneficial effect of $66 million in favorable prior-period medical claims reserve development versus $54 million in the 2013 quarter. For the 2014 period, the Retail segment's benefit expense included the beneficial effect of $330 million in favorable prior-period medical claims reserve development versus $304 million in the 2013 period. This favorable prior-period medical claims reserve development decreased the Retail segment benefit ratio by approximately 80 basis points in both the 2014 and 2013 quarters, and by approximately 130 basis points in the 2014 period versus approximately 150 basis points in the 2013 period.

Operating costs

• The Retail segment operating cost ratio of 12.4% for the 2014 quarterincreased170 basis points from 10.7% for the 2013 quarter. The Retail segment operating cost ratio of 11.7% for the 2014 periodincreased200 basis points from 9.7% for the 2013 period. These increases are primarily due to the non-deductible health insurance industry fee mandated by the Health Care Reform Law and investment spending for health care exchanges and state-based contracts, partially offset by scale efficiencies from Medicare and individual commercial medical membership growth.

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Employer Group Segment

	September 30,		Change
	2014	2013	Members		Percentage
Membership:
Medical membership:
Group Medicare Advantage	484,900	425,400	59,500		14.0	%
Group Medicare stand-alone PDP	4,400	4,200	200		4.8	%
Total group Medicare	489,300	429,600	59,700		13.9	%
Fully-insured commercial group	1,212,300	1,198,600	13,700		1.1	%
ASO	1,111,900	1,161,000	(49,100	)	(4.2	)%
Total group medical members	2,813,500	2,789,200	24,300		0.9	%
Group specialty membership (a)	6,525,300	7,207,300	(682,000	)	(9.5	)%

(a) Specialty products include dental, vision, and voluntary benefit products. Members included in these products may not be unique to each product since members have the ability to enroll in multiple products.

	For the three months ended September 30,						Change
	2014			2013			Dollars			Percentage
				(in millions)
Premiums and Services Revenue:
Premiums:
Group Medicare Advantage	$	1,381		$	1,193		$	188		15.8	%
Group Medicare stand-alone PDP	2			2			—			—	%
Total group Medicare	1,383			1,195			188			15.7	%
Fully-insured commercial group	1,335			1,278			57			4.5	%
Group specialty	274			273			1			0.4	%
Total premiums	2,992			2,746			246			9.0	%
Services	90			90			—			—	%
Total premiums and services revenue	$	3,082		$	2,836		$	246		8.7	%
Income before income taxes	$	13		$	76		$	(63	)	(82.9	)%
Benefit ratio	86.5		%	84.3		%				2.2	%
Operating cost ratio	15.7		%	15.5		%				0.2	%

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	For the nine months ended September 30,						Change
	2014			2013			Dollars			Percentage
				(in millions)
Premiums and Services Revenue:
Premiums:
Group Medicare Advantage	$	4,131		$	3,543		$	588		16.6	%
Group Medicare stand-alone PDP	6			6			—			—	%
Total group Medicare	4,137			3,549			588			16.6	%
Fully-insured commercial group	3,985			3,819			166			4.3	%
Group specialty	824			823			1			0.1	%
Total premiums	8,946			8,191			755			9.2	%
Services	263			265			(2		)	(0.8	)%
Total premiums and services revenue	$	9,209		$	8,456		$	753		8.9	%
Income before income taxes	$	328		$	422		$	(94	)	(22.3	)%
Benefit ratio	82.9		%	82.1		%				0.8	%
Operating cost ratio	16.0		%	15.3		%				0.7	%

Pretax Results

• Employer Group segment pretax income decreased$63 million, or 82.9%, to $13 million in the 2014 quarter, and decreased$94 million, or 22.3%, to $328 million for the 2014 period primarily reflecting higher utilization, mainly due to higher specialty prescription drug costs associated with a new treatment for Hepatitis C, as well as the continuing impact of transitional policy changes.

Enrollment

• Fully-insured group Medicare Advantage membership increased59,500 members, or 14.0%, from September 30, 2013 to September 30, 2014 primarily due to the addition of a new large group account.

• Fully-insured commercial group medical membership remained relatively unchanged, increasing13,700 members, or 1.1%, from September 30, 2013 to September 30, 2014 as an increase in small group business membership was generally offset by lower membership in large group accounts.

• Group ASO commercial medical membership decreased49,100 members, or 4.2%, from September 30, 2013 to September 30, 2014 primarily due to continued pricing discipline in a highly competitive environment for self-funded accounts. We expect our group ASO commercial medical membership to decline approximately 400,000 to 425,000 members January 1, 2015 primarily due to the loss of a few large group accounts.

• Group specialty membership decreased682,000 members, or 9.5%, from September 30, 2013 to September 30, 2014 primarily due to declines in dental and vision membership related to our planned discontinuance of certain unprofitable product distribution partnerships.

Premiums

• Employer Group segment premiums increased $246 million, or 9.0%, to $3.0 billion for the 2014 quarter, and increased $755 million, or 9.2%, to $8.9 billion for the 2014 period primarily due to higher average group Medicare Advantage membership.

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Benefits expense

• The Employer Group segment benefit ratio increased220 basis points from 84.3% in the 2013 quarter to 86.5% in the 2014 quarter, and increased80 basis points from 82.1% in the 2013 period to 82.9% in the 2014 period. The increases primarily reflect higher utilization, mainly due to higher specialty prescription drug costs associated with a new treatment for Hepatitis C, as well as the continuing impact of transitional policy changes, partially offset by the inclusion of the health insurance industry fee and other fees mandated by the Health Care Reform Law in our pricing.

The Employer Group segment’s pretax income for the 2014 quarter included the beneficial effect of $27 million in favorable prior-period medical claims reserve development versus $11 million in the 2013 quarter. For the 2014 period, the Employer Group segment's pretax income included the beneficial effect of $110 million in favorable prior-period medical claims reserve development versus $124 million in the 2013 period. This favorable prior-period medical claims reserve development decreased the Employer Group segment benefit ratio by approximately 90 basis points in the 2014 quarter versus approximately 40 basis points in the 2013 quarter, and by approximately 120 basis points in the 2014 period versus 150 basis points in the 2013 period.

Operating costs

• The Employer Group segment operating cost ratio of 15.7% for the 2014 quarterincreased20 basis points from 15.5% for the 2013 quarter. For the 2014 period, the Employer Group segment operating cost ratio of 16.0%increased70 basis points from 15.3% for the 2013 period. The increases primarily reflect the impact of the non-deductible health insurance industry fee and other fees mandated by the Health Care Reform Law as well as a higher percentage of small group commercial business which carries a higher operating cost ratio than large group business. These increases were partially offset by an increase in group Medicare Advantage membership which generally carries a lower operating cost ratio than our commercial group medical membership as well as operating cost efficiencies.

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Healthcare Services Segment

	For the three months ended September 30,						Change
	2014			2013			Dollars			Percentage
	(in millions)
Revenues:
Services:
Provider services	$	273		$	286		$	(13	)	(4.5	)%
Home based services	29			23			6			26.1	%
Pharmacy solutions	26			17			9			52.9	%
Integrated behavioral health services	—			1			(1		)	(100.0	)%
Total services revenues	328			327			1			0.3	%
Intersegment revenues:
Pharmacy solutions	4,347			3,330			1,017			30.5	%
Provider services	283			265			18			6.8	%
Home based services	155			88			67			76.1	%
Integrated behavioral health services	34			32			2			6.3	%
Total intersegment revenues	4,819			3,715			1,104			29.7	%
Total services and intersegment revenues	$	5,147		$	4,042		$	1,105		27.3	%
Income before income taxes	$	202		$	149		$	53		35.6	%
Operating cost ratio	95.4		%	95.4		%				—	%

	For the nine months ended September 30,						Change
	2014			2013			Dollars			Percentage
	(in millions)
Revenues:
Services:
Provider services	$	822		$	857		$	(35	)	(4.1	)%
Home based services	77			69			8			11.6	%
Pharmacy solutions	72			39			33			84.6	%
Integrated behavioral health services	—			2			(2		)	(100.0	)%
Total services revenues	971			967			4			0.4	%
Intersegment revenues:
Pharmacy solutions	12,408			9,627			2,781			28.9	%
Provider services	835			815			20			2.5	%
Home based services	411			220			191			86.8	%
Integrated behavioral health services	100			94			6			6.4	%
Total intersegment revenues	13,754			10,756			2,998			27.9	%
Total services and intersegment revenues	$	14,725		$	11,723		$	3,002		25.6	%
Income before income taxes	$	593		$	391		$	202		51.7	%
Operating cost ratio	95.2		%	95.7		%				(0.5	)%

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Pretax results

• Healthcare Services segment pretax income of $202 million for the 2014 quarterincreased$53 million, or 35.6%, from $149 million for the 2013 quarter. For the 2014 period, the Healthcare Services segment pretax income of $593 millionincreased$202 million, or 51.7%, from $391 million for the 2013 period. These increases are primarily due to an operating cost ratio that remained unchanged year-over-year in the 2014 quarter and declined in the 2014 period on a revenue base that reflects growth from our pharmacy solutions and home based services businesses as they serve our growing Medicare membership.

Script Volume

• Humana Pharmacy Solutions® script volumes for Retail and Employer Group segment membership increased to approximately 84 million in the 2014 quarter, up 20% versus scripts of approximately 70 million in the 2013 quarter. For the 2014 period, script volumes for Retail and Employer Group segment membership increased to approximately 244 million, up 20% versus scripts of approximately 204 million in the 2013 period. These increases primarily reflect growth associated with higher average medical membership for the 2014 quarter and period than in the 2013 quarter and period.

Services revenue

• Services revenue for the 2014 quarter and period were relatively unchanged from the 2013 quarter and period, increasing $1 million, or 0.3%, and $4 million, or 0.4%, respectively.

Intersegment revenues

• Intersegment revenues increased $1.1 billion, or 29.7%, from the 2013 quarter to $4.8 billion for the 2014 quarter and increased $3.0 billion, or 27.9%, from the 2013 period to $13.8 billion for the 2014 period primarily due to growth in our Medicare membership which resulted in higher utilization of our pharmacy solutions and home based services businesses.

Operating costs

• The Healthcare Services segment operating cost ratio of 95.4% for the 2014 quarter was unchanged from the 2013 quarter and decreased50 basis points to 95.2% for the 2014 period from 95.7% for the 2013 period. The decrease primarily reflects an improvement in the ratio for our pharmacy solutions business partially offset by the build out of home based services and other businesses across the segment.

Other Businesses

Pretax income for our Other Businesses of $14 million for the 2014 quarterdecreased$9 million compared to pretax income of $23 million for the 2013 quarter. For the 2014 period, pretax income of $56 millionincreased$5 million compared to pretax income of $51 million in the 2013 period. These year-over-year comparisons primarily reflect the loss of our Medicaid contracts in Puerto Rico and associated costs in 2013, as discussed previously. In addition, the 2013 period included a reduction in benefits expense related to a favorable settlement of contract claims with the DoD associated with previously disclosed litigation.

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Liquidity

Our primary sources of cash include receipts of premiums, services revenue, and investment and other income, as well as proceeds from the sale or maturity of our investment securities and borrowings. Our primary uses of cash include disbursements for claims payments, operating costs, interest on borrowings, taxes, purchases of investment securities, acquisitions, capital expenditures, repayments on borrowings, dividends, and share repurchases. Because premiums generally are collected in advance of claim payments by a period of up to several months, our business normally should produce positive cash flows during periods of increasing premiums and enrollment. Conversely, cash flows would be negatively impacted during periods of decreasing premiums and enrollment. From period to period, our cash flows may also be affected by the timing of working capital items including taxes and assessments. The use of operating cash flows may be limited by regulatory requirements which require, among other items, that our regulated subsidiaries maintain minimum levels of capital and seek approval before paying dividends from the subsidiaries to the parent. Our use of operating cash flows derived from our non-insurance subsidiaries, such as in our Healthcare Services segment, is generally not restricted by Departments of Insurance.

For 2014, the effect of the commercial risk adjustment, risk corridor, and reinsurance provisions of the Health Care Reform Law are impacting the timing of our operating cash flows, as we build a receivable in 2014 that will be collected in 2015. For the full year 2014, we expect our operating cash flows to decline from 2013. The net receivable balance associated with the 3Rs was approximately $456 million at September 30, 2014. In addition, our 2014 financing cash flows have been negatively impacted by the timing of payments to and receipts from CMS associated with Medicare Part D reinsurance subsidies for which we do not assume risk. We are experiencing higher specialty prescription drug costs associated with a new treatment for Hepatitis C than were contemplated in our bids which is resulting in higher reinsurance subsidy receivable balances in 2014 that will be settled in 2015 under the terms of our contracts with CMS. Any amounts receivable or payable associated with these risk limiting programs and CMS subsidies may have an impact on subsidiary liquidity, with any temporary shortfalls funded by the parent company.

For additional information on our liquidity risk, please refer to the section entitled “Risk Factors” in this report and in our 2013 Form 10-K.

Cash and cash equivalents increased to $2.7 billion at September 30, 2014 from $1.1 billion at December 31, 2013. The change in cash and cash equivalents for the nine months ended September 30, 2014 and 2013 is summarized as follows:

	2014			2013
	(in millions)
Net cash provided by operating activities	$	1,425		$	1,732
Net cash used in investing activities	(368		)	(1,143		)
Net cash provided by (used in) financing activities	510			(640		)
Increase (decrease) in cash and cash equivalents	$	1,567		$	(51	)

Cash Flow from Operating Activities

The decrease in operating cash flows from the 2013 period to the 2014 period primarily results from lower earnings and the timing of working capital items. The most significant drivers of changes in our working capital are typically the timing of payments of benefits expense and receipts for premiums. We illustrate these changes with the following summaries of benefits payable and receivables.

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The detail of benefits payable was as follows at September 30, 2014 and December 31, 2013:

	September 30, 2014		December 31, 2013		2014 Period Change			2013 Period Change
	(in millions)
IBNR (1)	$	3,412	$	2,586	$	826		$	218
Reported claims in process (2)	476		381		95			74
Other benefits payable (3)	788		926		(138		)	(1		)
Total benefits payable	$	4,676	$	3,893	783			291
Payables from acquisition					—			(4		)
Change in benefits payable per cash flow statement resulting in cash from operations					$	783		$	287

(1) IBNR represents an estimate of benefits payable for claims incurred but not reported (IBNR) at the balance sheet date. The level of IBNR is primarily impacted by membership levels, medical claim trends and the receipt cycle time, which represents the length of time between when a claim is initially incurred and when the claim form is received (i.e. a shorter time span results in a lower IBNR).

(2) Reported claims in process represents the estimated valuation of processed claims that are in the post claim adjudication process, which consists of administrative functions such as audit and check batching and handling, as well as amounts owed to our pharmacy benefit administrator which fluctuate due to bi-weekly payments and the month-end cutoff.

(3) Other benefits payable primarily include amounts owed to providers under capitated and risk sharing arrangements.

The increase in benefits payable from December 31, 2013 to September 30, 2014 largely was due to an increase in IBNR, primarily as a result of Medicare Advantage and individual commercial medical membership growth, and an increase in the amount of processed but unpaid claims, including amounts due to our pharmacy benefit administrator, which fluctuate due to month-end cutoff. These items were partially offset by a decrease in amounts owed to providers under capitated and risk sharing arrangements primarily related to the disbursement of a portion of our Medicare risk adjustment collections under our contractual obligations associated with our risk sharing arrangements. The increase in benefits payable from December 31, 2012 to September 30, 2013 primarily was due to an increase in IBNR, primarily as a result of Medicare Advantage membership growth, and an increase in the amount of processed but unpaid claims, including amounts due to our pharmacy benefit administrator, which fluctuate due to month-end cutoff.

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The detail of total net receivables was as follows at September 30, 2014 and December 31, 2013:

	September 30, 2014			December 31, 2013			2014 Period Change			2013 Period Change
	(in millions)
Medicare	$	569		$	576		$	(7	)	$	12
Commercial and other	499			405			94			57
Military services	71			87			(16		)	37
Allowance for doubtful accounts	(135		)	(118		)	(17		)	(15		)
Total net receivables	$	1,004		$	950		54			91
Reconciliation to cash flow statement:
Disposition of receivables from sale of business							14			(2		)
Change in receivables per cash flow statement resulting in cash from operations							$	68		$	89

The small changes in Medicare receivables reflect the typical pattern caused by the timing of accruals and related collections associated with the CMS risk-adjustment model. Significant collections occur with the final and mid-year settlements with CMS in July and August, respectively.

The increase in commercial and other receivables primarily relates to the commercial risk adjustment provisions of the Health Care Reform Law.

Military services receivables at September 30, 2014 and December 31, 2013 primarily consist of administrative services only fees owed from the federal government for administrative services provided under our TRICARE South Region contract and final settlement balances due under our previous TRICARE South Region contract. The decline in military services receivables in the 2014 period primarily relates to the settlement of certain balances due under our previous TRICARE South Region contract.Payments of the federal government’s claims and related reimbursements under our current TRICARE South Region contract are classified with receipts (withdrawals) from contract deposits as a financing item in our consolidated statements of cash flows.

Many provisions of the Health Care Reform Law became effective in 2014, including the commercial risk adjustment, risk corridor, and reinsurance provisions as well as the non-deductible health insurance industry fee. As discussed previously, the timing of payments and receipts associated with these provisions are impacting our operating cash flows as we build a receivable in 2014 that will be collected in 2015. The net receivable balance associated with the 3Rs was approximately $456 million at September 30, 2014, including certain amounts recorded in receivables as noted above. In September 2014, we paid the federal government $562 million for the annual health insurance industry fee.

In addition to the timing of receipts for premiums and services revenues, payments of benefits expense, and amounts due under the risk limiting and health insurance industry fee provisions of the Health Care Reform Law, other working capital items impacting operating cash flows primarily resulted from the timing of the collection of pharmacy rebates and the timing of payments for the Medicare Part D risk corridor provisions of our contracts with CMS.

Cash Flow from Investing Activities

We reinvested a portion of our operating cash flows in investment securities, primarily investment-grade fixed income securities, totaling $76 million in the 2014 period and $705 million in the 2013 period.

Our ongoing capital expenditures primarily relate to our information technology initiatives, support of services in our provider services operations including medical and administrative facility improvements necessary for activities such as the provision of care to members, claims processing, billing and collections, wellness solutions, care

52

coordination, regulatory compliance and customer service. Total capital expenditures, excluding acquisitions, were $361 million in the 2014 period and $310 million in the 2013 period reflecting increased spending associated with growth in our provider services and pharmacy businesses in our Healthcare Services segment. Excluding acquisitions, we expect total capital expenditures in 2014 in a range of approximately$500 million to $525 million.

Cash Flow from Financing Activities

Claims payments werehigher than receipts from CMS associated with Medicare Part D claim subsidies for which we do not assume risk by $761 million during the 2014 period and $191 million during the 2013 period. As discussed previously, our2014 financing cash flows have been negatively impacted by the timing of payments to and receipts from CMS associated with Medicare Part D claim subsidies for which we do not assume risk. We are experiencing higher specialty prescription drug costs associated with a new treatment for Hepatitis C than were contemplated in our bids which is resulting in higher subsidy receivable balances in 2014 that will be settled in 2015 under the terms of our contracts with CMS. Our net receivable for CMS subsidies and brand name prescription drug discounts was $1.5 billion at September 30, 2014 compared to $749 million at September 30, 2013 and $713 million at December 31, 2013. Refer to Note 6 to the condensed consolidated financial statements.

Under our administrative services only TRICARE South Region contract, health care cost payments for which we do not assume risk exceeded reimbursements from the federal government by $11 million during the 2014 period compared to $10 million during the 2013 period.

Receipts from HHS associated with cost sharing provisions of the Health Care Reform Law for which we do not assume risk were$29 millionhigher than claims payments during the 2014 period.

We repurchased 1.87 million shares for $230 million in the 2014 period and 3.78 million shares for $301 million in the 2013 period under share repurchase plans authorized by the Board of Directors. We also acquired common shares in connection with employee stock plans for an aggregate cost of $40 million in the 2014 period and $24 million in the 2013 period.

During the 2014 period we paid dividends to stockholders of $129 million as compared to $125 million in the 2013 period, as discussed further below.

Future Sources and Uses of Liquidity

Dividends

The following table provides details of dividend payments in 2013 and 2014 under our Board approved quarterly cash dividend policy:

Record Date	Payment Date	Amount per Share		Total Amount
				(in millions)
2013 payments
12/31/2012	1/25/2013	$	0.26	$	42
3/28/2013	4/26/2013	$	0.26	$	41
6/28/2013	7/26/2013	$	0.27	$	42
9/30/2013	10/25/2013	$	0.27	$	42
2014 payments
12/31/2013	1/31/2014	$	0.27	$	42
3/31/2014	4/25/2014	$	0.27	$	42
6/30/2014	7/25/2014	$	0.28	$	43
9/30/2014	10/31/2014	$	0.28	$	43

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In October 2014, the Board declared a cash dividend of $0.28 per share payable on January 30, 2015 to stockholders of record on December 31, 2014. Declaration and payment of future quarterly dividends is at the discretion of the Board and may be adjusted as business needs or market conditions change.

Stock Repurchases

In September 2014, the Board of Directors replaced a previous share repurchase authorization of up to $1 billion (of which $816 million remained unused) with a new authorization for repurchases of up to $2 billion of our common shares exclusive of shares repurchased in connection with employee stock plans, expiring on December 31, 2016. Under the new share repurchase authorization, shares may be purchased from time to time at prevailing prices in the open market, by block purchases, or in privately-negotiated transactions, subject to certain regulatory restrictions on volume, pricing, and timing. During the nine months ended September 30, 2014, we repurchased 1.60 million shares in open market transactions for $195 million at an average price of $121.68 under a previous share repurchase authorization and we repurchased 0.27 million shares in open market transactions for $35 million at an average price of $128.34 under the current authorization. During the nine months ended September 30, 2013, we repurchased 3.78 million shares in open market transactions for $301 million at an average price of $79.79 under previous share repurchase authorizations. We intend to repurchase $1 billion of shares (of the $2 billion authorized in September 2014) no later than June 30, 2015. During the period commencing on October 1, 2014 and ending on November 6, 2014, we repurchased 0.77 million shares in open market transactions for $100 million at an average price of $130.50 under the current authorization. As of November 7, 2014, the remaining authorized amount under the new authorization totaled $1.87 billion.

In connection with employee stock plans, we acquired 0.4 million common shares for $40 million and 0.3 million common shares for $24 million during the nine months ended September 30, 2014 and 2013, respectively.

On November 7, 2014, we announced that we intend to enter into an agreement with a third party financial institution to effect a $500 million accelerated stock repurchase program. We will repurchase shares through the program as part of the $2 billion authorized in September 2014. The actual number of shares repurchased under the agreement will be determined based on a volume-weighted average price of our common stock during the purchase period.

Senior Notes

In September 2014, we issued $400 million of 2.625% senior notes due October 1, 2019, $600 million of 3.85% senior notes due October 1, 2024 and $750 million of 4.95% senior notes due October 1, 2044. Our net proceeds, reduced for the underwriters' discount and commission and offering expenses, were $1.73 billion. We used a portion of the net proceeds to redeem the 6.45% senior unsecured notes as discussed below, and intend to use some or all of the remaining net proceeds to repurchase shares of our common stock and for general corporate purposes. We previously issued $500 million of 6.45% senior notes due June 1, 2016, $500 million of 7.20% senior notes due June 15, 2018, $300 million of 6.30% senior notes due August 1, 2018, $600 million of 3.15% senior notes due December 1, 2022, $250 million of 8.15% senior notes due June 15, 2038, and $400 million of 4.625% senior notes due December 1, 2042.

Our senior notes, which are unsecured, may be redeemed at our option at any time at 100% of the principal amount plus accrued interest and a specified make-whole amount. The 7.20% and 8.15% senior notes are subject to an interest rate adjustment if the debt ratings assigned to the notes are downgraded (or subsequently upgraded). In addition, our senior notes (other than the 6.30% senior notes) contain a change of control provision that may require us to purchase the notes under certain circumstances.

In October 2014, we redeemed the $500 million 6.45% senior unsecured notes due June 1, 2016, at 100% of the principal amount plus applicable premium for early redemption and accrued and unpaid interest to the redemption date, for cash totaling approximately $560 million. We recognized a loss on extinguishment of debt of approximately $37 million in October 2014 for the redemption of these notes.

54

Credit Agreement

Our 5-year $1.0 billion unsecured revolving credit agreement expires July 2018. Under the credit agreement, at our option, we can borrow on either a competitive advance basis or a revolving credit basis. The revolving credit portion bears interest at either LIBOR plus a spread or the base rate plus a spread. The LIBOR spread, currently 110 basis points, varies depending on our credit ratings ranging from 90.0 to 150.0 basis points. We also pay an annual facility fee regardless of utilization. This facility fee, currently 15 basis points, may fluctuate between 10.0 and 25.0 basis points, depending upon our credit ratings. The competitive advance portion of any borrowings will bear interest at market rates prevailing at the time of borrowing on either a fixed rate or a floating rate based on LIBOR, at our option.

The terms of the credit agreement include standard provisions related to conditions of borrowing, including a customary material adverse effect clause which could limit our ability to borrow additional funds. In addition, the credit agreement contains customary restrictive and financial covenants as well as customary events of default, including financial covenants regarding the maintenance of a minimum level of net worth of $7.6 billion at September 30, 2014 and a maximum leverage ratio of 3.0:1. We are in compliance with the financial covenants, with actual net worth of $10.1 billion and an actual leverage ratio of 1.8:1, as measured in accordance with the credit agreement as of September 30, 2014. In addition, the credit agreement includes an uncommitted $250 million incremental loan facility.

At September 30, 2014, we had no borrowings outstanding under the credit agreement and we had outstanding letters of credit of $5 million secured under that credit agreement. No amounts have been drawn on these letters of credit. Accordingly, as of September 30, 2014, we had $995 million of remaining borrowing capacity under the credit agreement, none of which would be restricted by our financial covenant compliance requirement. We have other customary, arms-length relationships, including financial advisory and banking, with some parties to the credit agreement.

Commercial Paper

In October 2014, we entered into a commercial paper program pursuant to which we may issue short-term, unsecured commercial paper notes privately placed on a discount basis through certain broker dealers. Amounts available under the program may be borrowed, repaid and re-borrowed from time to time, with the aggregate face or principal amounts outstanding under the program at any time not to exceed $1.0 billion. The net proceeds of issuances are expected to be used for general corporate purposes, including to repurchase shares of our common stock. As of November 6, 2014, we had $150 million outstanding in our commercial paper program.

Liquidity Requirements

We believe our cash balances, investment securities, operating cash flows, and funds available under our credit agreement and our commercial paper program or from other public or private financing sources, taken together, provide adequate resources to fund ongoing operating and regulatory requirements, acquisitions, future expansion opportunities, and capital expenditures for at least the next twelve months, as well as to refinance or repay debt, and repurchase shares.

Adverse changes in our credit rating may increase the rate of interest we pay and may impact the amount of credit available to us in the future. Our investment-grade credit rating at September 30, 2014 was BBB+ according to Standard & Poor’s Rating Services, or S&P, and Baa3 according to Moody’s Investors Services, Inc., or Moody’s. A downgrade by S&P to BB+ or by Moody’s to Ba1 triggers an interest rate increase of 25 basis points with respect to $750 million of our senior notes. Successive one notch downgrades increase the interest rate an additional 25 basis points, or annual interest expense by $2 million, up to a maximum 100 basis points, or annual interest expense by $8 million.

In addition, we operate as a holding company in a highly regulated industry. Humana Inc., our parent company, is dependent upon dividends and administrative expense reimbursements from our subsidiaries, most of which are subject to regulatory restrictions. We continue to maintain significant levels of aggregate excess statutory capital and surplus in our state-regulated operating subsidiaries. Cash, cash equivalents, and short-term investments at the parent company were $2.5 billion at September 30, 2014 compared to $508 million at December 31, 2013, primarily due to net proceeds

55

of $1.73 billion from the September 2014 issuance of senior notes, reduced for the underwriters' discount and commissions and offering expenses. As described in Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations under the section titled “Health Care Reform,” statutory accounting for the health insurance industry fee requires us to restrict surplus in the year preceding payment beginning in 2014. Therefore, in addition to recording the full-year 2014 assessment in the first quarter of 2014, we are required to restrict surplus for the 2015 assessment ratably in 2014. In September 2014, we paid the federal government $562 million for the annual health insurance industry fee. In 2015, the health insurance industry fee increases by 41% for the industry taken as a whole. Accordingly, absent changes in market share, we would expect a 41% increase in our fee in 2015.

Regulatory Requirements

Certain of our subsidiaries operate in states that regulate the payment of dividends, loans, or other cash transfers to Humana Inc., our parent company, and require minimum levels of equity as well as limit investments to approved securities. The amount of dividends that may be paid to Humana Inc. by these subsidiaries, without prior approval by state regulatory authorities, or ordinary dividends, is limited based on the entity’s level of statutory income and statutory capital and surplus. In most states, prior notification is provided before paying a dividend even if approval is not required. Actual dividends paid may vary due to consideration of excess statutory capital and surplus and expected future surplus requirements related to, for example, premium volume and product mix.

Although minimum required levels of equity are largely based on premium volume, product mix, and the quality of assets held, minimum requirements vary significantly at the state level. Based on the most recently filed statutory financial statements as of June 30, 2014, our state regulated subsidiaries had aggregate statutory capital and surplus of approximately $5.3 billion, which exceeded aggregate minimum regulatory requirements of $3.7 billion. The amount of dividends that were paid to our parent company in the 2014 period was approximately $927 million in the aggregate compared to dividends that were paid for the full year 2013 of approximately $967 million. The year-over-year decline is a result of higher surplus requirements associated with premium growth due to increases in membership.

Item 3.    Quantitative and Qualitative Disclosures about Market Risk

Our earnings and financial position are exposed to financial market risk, including those resulting from changes in interest rates.

Interest rate risk also represents a market risk factor affecting our consolidated financial position due to our significant investment portfolio, consisting primarily of fixed maturity securities of investment-grade quality with a weighted average S&P credit rating of AA- at September 30, 2014. Our net unrealized position increased$202 million from a net unrealized gain position of $250 million at December 31, 2013 to a net unrealized gain position of $452 million at September 30, 2014. At September 30, 2014, we had gross unrealized losses of $51 million on our investment portfolio primarily due to an increase in market interest rates since the time the securities were purchased. There were no material other-than-temporary impairments during the three months ended September 30, 2014. While we believe that these impairments are temporary and we currently do not have the intent to sell such securities, given the current market conditions and the significant judgments involved, there is a continuing risk that future declines in fair value may occur and material realized losses from sales or other-than-temporary impairments may be recorded in future periods.

Duration is the time-weighted average of the present value of the bond portfolio’s cash flow. Duration is indicative of the relationship between changes in fair value and changes in interest rates, providing a general indication of the sensitivity of the fair values of our fixed maturity securities to changes in interest rates. However, actual fair values may differ significantly from estimates based on duration. The average duration of our investment portfolio, including cash and cash equivalents, was approximately 3.7 years as of September 30, 2014 and 4.3 years as of December 31, 2013. Based on the duration, including cash equivalents, a 1% increase in interest rates would generally decrease the fair value of our securities by approximately $470 million.

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Item 4.    Controls and Procedures

Under the supervision and with the participation of our Chief Executive Officer, or CEO, our Chief Financial Officer, or CFO, and our Principal Accounting Officer, we carried out an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures for the quarter ended September 30, 2014.

Based on our evaluation, our CEO, CFO, and our Principal Accounting Officer concluded that our disclosure controls and procedures are effective to provide reasonable assurance that information the Company is required to disclose in its reports under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms, including, without limitation, ensuring that such information is accumulated and communicated to the Company’s management, including its principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.

There have been no changes in the Company’s internal control over financial reporting during the quarter ended September 30, 2014 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

For a description of the legal proceedings pending against us and certain other pending or threatened litigation, investigations, or other matters, see “Legal Proceedings and Certain Regulatory Matters” in Note 12 to the condensed consolidated financial statements beginning on page 23 of this Form 10-Q.

Item 1A.     Risk Factors

There have been no changes to the risk factors included in our 2013 Form 10-K.

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

(a) None.

(b) N/A

(c) The following table provides information about purchases by us during the three months ended September 30, 2014 of equity securities that are registered by us pursuant to Section 12 of the Exchange Act:

Period	Total Number of Shares Purchased (1)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (1)(2)	Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs (1)
July 2014	—	$	—	—	$	899,310,474
August 2014	698,614	119.00		698,614	816,194,778
September 2014	268,552	128.34		268,552	1,965,542,892
Total	967,166	$	121.59	967,166

(1) As announced on September 16, 2014, effective September 1, 2014, the Board of Directors replaced a previous share repurchase authorization of up to $1 billion with a new authorization for repurchases of up to $2 billion of our common shares exclusive of shares repurchased in connection with employee stock plans, expiring on December 31, 2016. Under the new share repurchase authorization, shares may be purchased from time to time at prevailing prices in the open market, by block purchases, or in privately-negotiated transactions, subject to certain regulatory restrictions on volume, pricing, and timing. During the period commencing on October 1, 2014 and ending on November 6, 2014, we repurchased 0.77 million shares in open market transactions for $100 million at an average price of $130.50 under the current authorization. As of November 7, 2014, the remaining authorized amount under the current authorization totaled $1.87 billion.

(2) Excludes 0.4 million shares repurchased in connection with employee stock plans.

Item 3: Defaults Upon Senior Securities

None.

Item 4: Mine Safety Disclosures

Not applicable.

58

Item 5: Other Information

None.

Item 6: Exhibits

3(i) Restated Certificate of Incorporation of Humana Inc. filed with the Secretary of State of Delaware on November 9, 1989, as restated to incorporate the amendment of January 9, 1992, and the correction of March 23, 1992 (incorporated herein by reference to Exhibit 4(i) to Humana Inc.’s Post-Effective Amendment No. 1 to the Registration Statement on Form S-8 (Reg. No. 33-49305) filed February 2, 1994).

3(ii) By-Laws of Humana Inc., as amended on January 4, 2007 (incorporated herein by reference to Exhibit 3 to Humana Inc.’s Annual Report on Form 10-K for the year ended December 31, 2006).

12 Computation of ratio of earnings to fixed charges.

31.1 Principal Executive Officer certification pursuant to Section 302 of Sarbanes–Oxley Act of 2002.

31.2 Principal Financial Officer certification pursuant to Section 302 of Sarbanes–Oxley Act of 2002.

32 Principal Executive Officer and Principal Financial Officer certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

101 The following materials from Humana Inc.'s Quarterly Report of Form 10-Q formatted in XBRL (Extensible Business Reporting Language): (i) the Condensed Consolidated Balance Sheets at September 30, 2014 and December 31, 2013; (ii) the Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2014 and 2013; (iii) the Condensed Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2014 and 2013; (iv) the Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2014 and 2013; and (v) Notes to Condensed Consolidated Financial Statements.

59

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.

			HUMANA INC.
			(Registrant)
Date:	November 7, 2014	By:	/s/ STEVEN E. MCCULLEY
			Steven E. McCulley
			Senior Vice President and Chief Accounting Officer
			(Principal Accounting Officer and Duly Authorized Officer)

60

EX-12

Exhibit 12

Humana Inc.
Computation of Ratio of Earnings to Fixed Charges

	For the nine months ended September 30,		For the twelve months ended December 31,
	2014		2013		2012		2011		2010		2009
	(Dollars in millions)
Income before income taxes	$	1,883	$	1,921	$	1,911	$	2,235	$	1,749	$	1,602
Fixed charges	165		216		178		178		157		160
Total earnings	$	2,048	$	2,137	$	2,089	$	2,413	$	1,906	$	1,762
Interest charged to expense	$	108	$	140	$	105	$	109	$	105	$	106
One-third of rent expense	57		76		73		69		52		54
Total fixed charges	$	165	$	216	$	178	$	178	$	157	$	160
Ratio of earnings to fixed charges (1)(2)	12.4x		9.9x		11.7x		13.6x		12.1x		11.0x

Notes

(1) For the purposes of determining the ratio of earnings to fixed charges, earnings consist of income before income taxes and fixed charges. Fixed charges include gross interest expense, amortization of deferred financing expenses and an amount equivalent to interest included in rental charges. One-third of rental expense represents a reasonable approximation of the interest amount.

(2) There are no shares of preferred stock outstanding.

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

I, Bruce D. Broussard, principal executive officer of Humana Inc., certify that:

1. I have reviewed this Quarterly Report of Humana Inc. (the “Company”) on Form 10-Q for the period ending September 30, 2014;

2. Based on my knowledge, this quarterly 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 quarterly report;

3. Based on my knowledge, the financial statements, and other financial information included in this quarterly 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 quarterly report;

4. The registrant’s other certifying officer(s) 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 the 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(s) 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:	November 7, 2014
Signature:	/s/ Bruce D. Broussard
	Bruce D. Broussard Principal Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO SECTION 302 OF SARBANES-OXLEY ACT OF 2002

I, Brian A. Kane, principal financial officer of Humana Inc., certify that:

1. I have reviewed this Quarterly Report of Humana Inc. (the “Company”) on Form 10-Q for the period ending September 30, 2014;

2. Based on my knowledge, this quarterly 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 quarterly report;

3. Based on my knowledge, the financial statements, and other financial information included in this quarterly 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 quarterly report;

4. The registrant’s other certifying officer(s) 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 the 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(s) 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:	November 7, 2014
Signature:	/s/ Brian A. Kane
	Brian A. Kane Principal Financial Officer

EX-32

Exhibit 32

CERTIFICATION 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 of Humana Inc. (the “Company”) on Form 10-Q for the period ending September 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned hereby certifies, pursuant to 18 U.S.C. Sec. 1350, as adopted pursuant to Sec. 906 of the Sarbanes-Oxley Act of 2002, in his capacity as an officer of Humana Inc., that:

(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 result of operations of the Company.

/s/ Bruce D. Broussard

Bruce D. Broussard

Principal Executive Officer

November 7, 2014

/s/ Brian A. Kane

Brian A. Kane

Principal Financial Officer

November 7, 2014

A signed original of this written statement required by Section 906 has been provided to Humana Inc. and will be retained by Humana Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Financial Assets Measured at Fair Value on Recurring Basis (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	$ 10,035	$ 9,800
Measured On Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	2,606	876
Total debt securities, Fair Value	10,035	9,800
Total invested assets	12,641	10,676
Measured On Recurring Basis | Tax-exempt municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	3,151	2,971
Measured On Recurring Basis | Residential Mortgage-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	18	22
Measured On Recurring Basis | Commercial Mortgage-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	696	673
Measured On Recurring Basis | Asset-backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	41	63
Measured On Recurring Basis | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	3,708	3,667
Measured On Recurring Basis | U.S. Treasury And Other U.S. Government Corporations And Agencies | U.S. Treasury And Agency Obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	852	584
Measured On Recurring Basis | U.S. Treasury And Other U.S. Government Corporations And Agencies | Mortgage-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	1,569	1,820
Quoted Prices in Active Markets for Identical Assets (Level 1) | Measured On Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	2,606	876
Total debt securities, Fair Value	0	0
Total invested assets	2,606	876
Quoted Prices in Active Markets for Identical Assets (Level 1) | Measured On Recurring Basis | Tax-exempt municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Measured On Recurring Basis | Residential Mortgage-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Measured On Recurring Basis | Commercial Mortgage-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Measured On Recurring Basis | Asset-backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Measured On Recurring Basis | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Measured On Recurring Basis | U.S. Treasury And Other U.S. Government Corporations And Agencies | U.S. Treasury And Agency Obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Measured On Recurring Basis | U.S. Treasury And Other U.S. Government Corporations And Agencies | Mortgage-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	0	0
Significant Other Observable Inputs (Level 2) | Measured On Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Total debt securities, Fair Value	9,997	9,763
Total invested assets	9,997	9,763
Significant Other Observable Inputs (Level 2) | Measured On Recurring Basis | Tax-exempt municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	3,138	2,958
Significant Other Observable Inputs (Level 2) | Measured On Recurring Basis | Residential Mortgage-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	18	22
Significant Other Observable Inputs (Level 2) | Measured On Recurring Basis | Commercial Mortgage-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	696	673
Significant Other Observable Inputs (Level 2) | Measured On Recurring Basis | Asset-backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	40	62
Significant Other Observable Inputs (Level 2) | Measured On Recurring Basis | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	3,684	3,644
Significant Other Observable Inputs (Level 2) | Measured On Recurring Basis | U.S. Treasury And Other U.S. Government Corporations And Agencies | U.S. Treasury And Agency Obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	852	584
Significant Other Observable Inputs (Level 2) | Measured On Recurring Basis | U.S. Treasury And Other U.S. Government Corporations And Agencies | Mortgage-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	1,569	1,820
Significant Unobservable Inputs (Level 3) | Measured On Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Total debt securities, Fair Value	38	37
Total invested assets	38	37
Significant Unobservable Inputs (Level 3) | Measured On Recurring Basis | Tax-exempt municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	13	13
Significant Unobservable Inputs (Level 3) | Measured On Recurring Basis | Residential Mortgage-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	0	0
Significant Unobservable Inputs (Level 3) | Measured On Recurring Basis | Commercial Mortgage-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	0	0
Significant Unobservable Inputs (Level 3) | Measured On Recurring Basis | Asset-backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	1	1
Significant Unobservable Inputs (Level 3) | Measured On Recurring Basis | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	24	23
Significant Unobservable Inputs (Level 3) | Measured On Recurring Basis | U.S. Treasury And Other U.S. Government Corporations And Agencies | U.S. Treasury And Agency Obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	0	0
Significant Unobservable Inputs (Level 3) | Measured On Recurring Basis | U.S. Treasury And Other U.S. Government Corporations And Agencies | Mortgage-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt securities, Fair Value	$ 0	$ 0

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Segment Information by Segment (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting Information [Line Items]
Premiums	$ 11,607	$ 9,698	$ 34,274	$ 29,267
Services	536	528	1,620	1,581
Total revenues - external customers	12,143	10,226	35,894	30,848
Investment income	95	93	278	278
Total revenues	12,238	10,319	36,172	31,126
Benefits	9,666	8,075	28,417	24,361
Operating costs	1,898	1,540	5,518	4,447
Depreciation and amortization	85	83	246	243
Total operating expenses	11,649	9,698	34,181	29,051
Income from operations	589	621	1,991	2,075
Interest expense	38	35	108	105
Income (loss) before income taxes	551	586	1,883	1,970
Medicare Advantage
Segment Reporting Information [Line Items]
Premiums	7,889	6,745	23,574	20,403
Medicare Stand Alone Prescription Drug Plan
Segment Reporting Information [Line Items]
Premiums	806	742	2,612	2,292
Medicare
Segment Reporting Information [Line Items]
Premiums	8,695	7,487	26,186	22,695
Fully-Insured
Segment Reporting Information [Line Items]
Premiums	2,261	1,570	6,348	4,675
Specialty
Segment Reporting Information [Line Items]
Premiums	341	327	1,016	978
Military Services
Segment Reporting Information [Line Items]
Premiums	5	6	15	22
Medicaid And Other
Segment Reporting Information [Line Items]
Premiums	305	308	709	897
Provider
Segment Reporting Information [Line Items]
Services	308	316	916	943
ASO And Other
Segment Reporting Information [Line Items]
Services	202	195	632	599
Pharmacy
Segment Reporting Information [Line Items]
Services	26	17	72	39
Intersegment revenues
Segment Reporting Information [Line Items]
Total revenues	(4,841)	(3,729)	(13,811)	(10,793)
Intersegment revenues | Retail
Segment Reporting Information [Line Items]
Total revenues	0	0	0	0
Intersegment revenues | Employer Group
Segment Reporting Information [Line Items]
Total revenues	22	14	57	37
Intersegment revenues | Healthcare Services
Segment Reporting Information [Line Items]
Total revenues	4,819	3,715	13,754	10,756
Intersegment revenues | Other Businesses
Segment Reporting Information [Line Items]
Total revenues	0	0	0	0
Intersegment revenues | Services
Segment Reporting Information [Line Items]
Total revenues	(3,873)	(3,013)	(11,059)	(8,743)
Intersegment revenues | Services | Retail
Segment Reporting Information [Line Items]
Total revenues	0	0	0	0
Intersegment revenues | Services | Employer Group
Segment Reporting Information [Line Items]
Total revenues	22	14	57	37
Intersegment revenues | Services | Healthcare Services
Segment Reporting Information [Line Items]
Total revenues	3,851	2,999	11,002	8,706
Intersegment revenues | Services | Other Businesses
Segment Reporting Information [Line Items]
Total revenues	0	0	0	0
Intersegment revenues | Products
Segment Reporting Information [Line Items]
Total revenues	(968)	(716)	(2,752)	(2,050)
Intersegment revenues | Products | Retail
Segment Reporting Information [Line Items]
Total revenues	0	0	0	0
Intersegment revenues | Products | Employer Group
Segment Reporting Information [Line Items]
Total revenues	0	0	0	0
Intersegment revenues | Products | Healthcare Services
Segment Reporting Information [Line Items]
Total revenues	968	716	2,752	2,050
Intersegment revenues | Products | Other Businesses
Segment Reporting Information [Line Items]
Total revenues	0	0	0	0
Operating Segments | Retail
Segment Reporting Information [Line Items]
Premiums	8,597	6,714	25,271	20,384
Services	10	3	37	7
Total revenues - external customers	8,607	6,717	25,308	20,391
Investment income	19	19	56	55
Total revenues	8,626	6,736	25,364	20,446
Benefits	7,201	5,647	21,371	17,272
Operating costs	1,063	718	2,968	1,971
Depreciation and amortization	40	33	112	97
Total operating expenses	8,304	6,398	24,451	19,340
Income from operations	322	338	913	1,106
Interest expense	0	0	0	0
Income (loss) before income taxes	322	338	913	1,106
Operating Segments | Employer Group
Segment Reporting Information [Line Items]
Premiums	2,992	2,746	8,946	8,191
Services	90	90	263	265
Total revenues - external customers	3,082	2,836	9,209	8,456
Investment income	11	10	32	31
Total revenues	3,115	2,860	9,298	8,524
Benefits	2,589	2,316	7,417	6,728
Operating costs	487	443	1,478	1,299
Depreciation and amortization	26	25	75	75
Total operating expenses	3,102	2,784	8,970	8,102
Income from operations	13	76	328	422
Interest expense	0	0	0	0
Income (loss) before income taxes	13	76	328	422
Operating Segments | Healthcare Services
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Services	328	327	971	967
Total revenues - external customers	328	327	971	967
Investment income	0	0	0	0
Total revenues	5,147	4,042	14,725	11,723
Benefits	0	0	0	0
Operating costs	4,908	3,856	14,024	11,223
Depreciation and amortization	37	37	108	109
Total operating expenses	4,945	3,893	14,132	11,332
Income from operations	202	149	593	391
Interest expense	0	0	0	0
Income (loss) before income taxes	202	149	593	391
Operating Segments | Other Businesses
Segment Reporting Information [Line Items]
Premiums	18	238	57	692
Services	108	108	349	342
Total revenues - external customers	126	346	406	1,034
Investment income	15	15	45	45
Total revenues	141	361	451	1,079
Benefits	27	230	82	668
Operating costs	96	103	301	347
Depreciation and amortization	4	5	12	13
Total operating expenses	127	338	395	1,028
Income from operations	14	23	56	51
Interest expense	0	0	0	0
Income (loss) before income taxes	14	23	56	51
Operating Segments | Medicare Advantage | Retail
Segment Reporting Information [Line Items]
Premiums	6,508	5,552	19,443	16,860
Operating Segments | Medicare Advantage | Employer Group
Segment Reporting Information [Line Items]
Premiums	1,381	1,193	4,131	3,543
Operating Segments | Medicare Advantage | Healthcare Services
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Medicare Advantage | Other Businesses
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Medicare Stand Alone Prescription Drug Plan | Retail
Segment Reporting Information [Line Items]
Premiums	804	740	2,606	2,286
Operating Segments | Medicare Stand Alone Prescription Drug Plan | Employer Group
Segment Reporting Information [Line Items]
Premiums	2	2	6	6
Operating Segments | Medicare Stand Alone Prescription Drug Plan | Healthcare Services
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Medicare Stand Alone Prescription Drug Plan | Other Businesses
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Medicare | Retail
Segment Reporting Information [Line Items]
Premiums	7,312	6,292	22,049	19,146
Operating Segments | Medicare | Employer Group
Segment Reporting Information [Line Items]
Premiums	1,383	1,195	4,137	3,549
Operating Segments | Medicare | Healthcare Services
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Medicare | Other Businesses
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Fully-Insured | Retail
Segment Reporting Information [Line Items]
Premiums	926	292	2,363	856
Operating Segments | Fully-Insured | Employer Group
Segment Reporting Information [Line Items]
Premiums	1,335	1,278	3,985	3,819
Operating Segments | Fully-Insured | Healthcare Services
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Fully-Insured | Other Businesses
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Specialty | Retail
Segment Reporting Information [Line Items]
Premiums	67	54	192	155
Operating Segments | Specialty | Employer Group
Segment Reporting Information [Line Items]
Premiums	274	273	824	823
Operating Segments | Specialty | Healthcare Services
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Specialty | Other Businesses
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Military Services | Retail
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Military Services | Employer Group
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Military Services | Healthcare Services
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Military Services | Other Businesses
Segment Reporting Information [Line Items]
Premiums	5	6	15	22
Operating Segments | Medicaid And Other | Retail
Segment Reporting Information [Line Items]
Premiums	292	76	667	227
Operating Segments | Medicaid And Other | Employer Group
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Medicaid And Other | Healthcare Services
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Operating Segments | Medicaid And Other | Other Businesses
Segment Reporting Information [Line Items]
Premiums	13	232	42	670
Operating Segments | Provider | Retail
Segment Reporting Information [Line Items]
Services	0	0	0	0
Operating Segments | Provider | Employer Group
Segment Reporting Information [Line Items]
Services	6	6	17	15
Operating Segments | Provider | Healthcare Services
Segment Reporting Information [Line Items]
Services	302	310	899	928
Operating Segments | Provider | Other Businesses
Segment Reporting Information [Line Items]
Services	0	0	0	0
Operating Segments | ASO And Other | Retail
Segment Reporting Information [Line Items]
Services	10	3	37	7
Operating Segments | ASO And Other | Employer Group
Segment Reporting Information [Line Items]
Services	84	84	246	250
Operating Segments | ASO And Other | Healthcare Services
Segment Reporting Information [Line Items]
Services	0	0	0	0
Operating Segments | ASO And Other | Other Businesses
Segment Reporting Information [Line Items]
Services	108	108	349	342
Operating Segments | Pharmacy | Retail
Segment Reporting Information [Line Items]
Services	0	0	0	0
Operating Segments | Pharmacy | Employer Group
Segment Reporting Information [Line Items]
Services	0	0	0	0
Operating Segments | Pharmacy | Healthcare Services
Segment Reporting Information [Line Items]
Services	26	17	72	39
Operating Segments | Pharmacy | Other Businesses
Segment Reporting Information [Line Items]
Services	0	0	0	0
Eliminations/Corporate
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Services	0	0	0	0
Total revenues - external customers	0	0	0	0
Investment income	50	49	145	147
Total revenues	(4,791)	(3,680)	(13,666)	(10,646)
Benefits	(151)	(118)	(453)	(307)
Operating costs	(4,656)	(3,580)	(13,253)	(10,393)
Depreciation and amortization	(22)	(17)	(61)	(51)
Total operating expenses	(4,829)	(3,715)	(13,767)	(10,751)
Income from operations	38	35	101	105
Interest expense	38	35	108	105
Income (loss) before income taxes	0	0	(7)	0
Eliminations/Corporate | Medicare Advantage
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Eliminations/Corporate | Medicare Stand Alone Prescription Drug Plan
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Eliminations/Corporate | Medicare
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Eliminations/Corporate | Fully-Insured
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Eliminations/Corporate | Specialty
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Eliminations/Corporate | Military Services
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Eliminations/Corporate | Medicaid And Other
Segment Reporting Information [Line Items]
Premiums	0	0	0	0
Eliminations/Corporate | Provider
Segment Reporting Information [Line Items]
Services	0	0	0	0
Eliminations/Corporate | ASO And Other
Segment Reporting Information [Line Items]
Services	0	0	0	0
Eliminations/Corporate | Pharmacy
Segment Reporting Information [Line Items]
Services	$ 0	$ 0	$ 0	$ 0

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Stockholders' Equity - Additional Information (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended							1 Months Ended	9 Months Ended			1 Months Ended	9 Months Ended	1 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 Net unrealized gains on our investment securities	Dec. 31, 2013 Net unrealized gains on our investment securities	Sep. 30, 2014 Additional liability that would exist on closed block of long-term care policies assuming unrealized gains on investments backing such products were realized and reinvested at current yields	Dec. 31, 2013 Additional liability that would exist on closed block of long-term care policies assuming unrealized gains on investments backing such products were realized and reinvested at current yields	Oct. 31, 2014 Subsequent Event	Sep. 30, 2014 Prior Authorization	Sep. 30, 2013 Prior Authorization	Apr. 30, 2014 Prior Authorization	Sep. 30, 2014 September 2014 Share Repurchase Authorization	Sep. 30, 2014 September 2014 Share Repurchase Authorization	Nov. 06, 2014 September 2014 Share Repurchase Authorization Subsequent Event	Nov. 07, 2014 September 2014 Share Repurchase Authorization Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Dividends per common share (in dollars per share)	$ 0.28	$ 0.27	$ 0.83	$ 0.80						$ 0.28
Share repurchase authorization													$ 1,000,000,000	$ 2,000,000,000	$ 2,000,000,000
Remaining authorized amount													816,000,000				1,870,000,000
Expiration date of new authorization															Dec. 31, 2016
Shares repurchased in open market											1.60	3.78			0.27	0.77
Value of shares repurchased											195,000,000	301,000,000			35,000,000	100,000,000
Shares repurchased in open market, average price											$ 121.68	$ 79.79			$ 128.34	$ 130.50
Share repurchase authorization														In September 2014, the Board of Directors replaced a previous share repurchase authorization of up to $1 billion (of which $816 million remained unused) with a new authorization for repurchases of up to $2 billion of our common shares exclusive of shares repurchased in connection with employee stock plans, expiring on December 31, 2016.
Common shares acquired in connection with employee stock plans, shares			0.4	0.3
Common shares acquired in connection with employee stock plans, amount			40,000,000	24,000,000
Accumulated other comprehensive income	$ 233,000,000		$ 233,000,000		$ 158,000,000	$ 286,000,000	$ 158,000,000	$ 53,000,000	$ 0

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Schedule of Details Supporting Computation of Earnings Per Share (Detail) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income available for common stockholders	$ 290	$ 368	$ 1,002	$ 1,261
Weighted average outstanding shares of common stock used to compute basic earnings per common share	154,502	157,187	155,006	158,026
Shares used to compute diluted earnings per common share	156,230	158,907	156,641	159,611
Basic earnings per common share (in dollars per share)	$ 1.87	$ 2.34	$ 6.46	$ 7.98
Diluted earnings per common share (in dollars per share)	$ 1.85	$ 2.31	$ 6.39	$ 7.90
Number of antidilutive stock options and restricted stock excluded from computation	43	202	420	910
Employee Stock Options
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Dilutive effect of employee stock options and restricted stock	203	289	233	341
Restricted Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Dilutive effect of employee stock options and restricted stock	1,525	1,431	1,402	1,244

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Investment Securities - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]
Percentage of debt securities considered to be of investment-grade	96.00%		96.00%
Percentage of tax-exempt municipal securities classified as pre-refunded	5.00%		5.00%
General obligation bonds as percentage of tax-exempt municipal securities that were not pre-refunded			39.00%
Special revenue bonds as percentage of tax exempt municipal securities that were not pre-refunded			61.00%
Maximum percentage of any general obligation bonds in one state			11.00%
Percentage of tax-exempt securities insured by bond insurers	16.00%		16.00%
Residential and commercial mortgage-backed securities, percentage of collateral consisting of prime loans	99.00%		99.00%
Percentage of corporate securities associated with financial services industry	20.00%		20.00%		23.00%
Other-than-temporary impairments	$ 0	$ 0	$ 0	$ 0

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EARNINGS PER COMMON SHARE COMPUTATION (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Schedule of Details Supporting Computation of Earnings Per Share

Detail supporting the computation of basic and diluted earnings per common share was as follows for the three and nine months ended September 30, 2014 and 2013:

	Three months ended September 30,				Nine months ended September 30,
	2014		2013		2014		2013
	(dollars in millions, except per common share results; number of shares in thousands)
Net income available for common stockholders	$	290	$	368	$	1,002	$	1,261
Weighted average outstanding shares of common stock used to compute basic earnings per common share	154,502		157,187		155,006		158,026
Dilutive effect of:
Employee stock options	203		289		233		341
Restricted stock	1,525		1,431		1,402		1,244
Shares used to compute diluted earnings per common share	156,230		158,907		156,641		159,611
Basic earnings per common share	$	1.87	$	2.34	$	6.46	$	7.98
Diluted earnings per common share	$	1.85	$	2.31	$	6.39	$	7.90
Number of antidilutive stock options and restricted stock excluded from computation	43		202		420		910

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DEBT - Schedule of Long-term Debt Outstanding (Details) (USD $)			1 Months Ended	9 Months Ended																					1 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Senior Notes	Sep. 30, 2014 Senior Notes	Dec. 31, 2013 Senior Notes	Dec. 31, 2008 Senior Notes	Sep. 30, 2014 Senior Notes $500 million, 6.45% due June 1, 2016	Dec. 31, 2013 Senior Notes $500 million, 6.45% due June 1, 2016	Sep. 30, 2014 Senior Notes $500 million, 7.20% due June 15, 2018	Dec. 31, 2013 Senior Notes $500 million, 7.20% due June 15, 2018	Sep. 30, 2014 Senior Notes $300 million, 6.30% due August 1, 2018	Dec. 31, 2013 Senior Notes $300 million, 6.30% due August 1, 2018	Sep. 30, 2014 Senior Notes $400 million, 2.625% due October 1, 2019	Dec. 31, 2013 Senior Notes $400 million, 2.625% due October 1, 2019	Sep. 30, 2014 Senior Notes $600 million, 3.15% due December 1, 2022	Dec. 31, 2013 Senior Notes $600 million, 3.15% due December 1, 2022	Sep. 30, 2014 Senior Notes $600 million, 3.85% due October 1, 2024	Dec. 31, 2013 Senior Notes $600 million, 3.85% due October 1, 2024	Sep. 30, 2014 Senior Notes $250 million, 8.15% due June 15, 2038	Dec. 31, 2013 Senior Notes $250 million, 8.15% due June 15, 2038	Sep. 30, 2014 Senior Notes $400 million, 4.625% due December 1, 2042	Dec. 31, 2013 Senior Notes $400 million, 4.625% due December 1, 2042	Sep. 30, 2014 Senior Notes $750 million, 4.95% due October 1, 2044	Dec. 31, 2013 Senior Notes $750 million, 4.95% due October 1, 2044	Oct. 31, 2014 Subsequent Event Senior Notes $500 million, 6.45% due June 1, 2016
Debt Instrument [Line Items]
Stated interest rate							6.45%	6.45%	7.20%	7.20%	6.30%	6.30%	2.625%	0.00%	3.15%	3.15%	3.85%	0.00%	8.15%	8.15%	4.625%	4.625%	4.95%	0.00%
Face amount							$ 500,000,000	$ 500,000,000	$ 500,000,000	$ 500,000,000	$ 300,000,000	$ 300,000,000	$ 400,000,000	$ 0	$ 600,000,000	$ 600,000,000	$ 600,000,000	$ 0	$ 250,000,000	$ 250,000,000	$ 400,000,000	$ 400,000,000	$ 750,000,000	$ 0
Total debt	4,338,000,000	2,600,000,000	4,338,000,000	4,338,000,000	2,600,000,000		512,000,000	517,000,000	505,000,000	505,000,000	312,000,000	314,000,000	400,000,000	0	598,000,000	598,000,000	599,000,000	0	266,000,000	266,000,000	400,000,000	400,000,000	746,000,000	0
Less current portion of long-term debt	512,000,000	0	512,000,000	512,000,000	0
Total long-term debt			3,826,000,000	3,826,000,000	2,600,000,000
Proceeds from issuance of debt, net of underwriters' discount and commission and offering expenses			1,730,000,000
Redemption price, percentage				100.00%																					100.00%
Extinguishment of debt, amount																									560,000,000
Loss on extinguishment of debt																									37,000,000
Unamortized discount (premium)			$ 45,000,000	$ 45,000,000	$ 54,000,000	$ 103,000,000																			$ 12,000,000

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Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense for other intangible assets	$ 28	$ 28	$ 85	$ 84

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Schedule of Contractual Maturities of Debt Securities Available for Sale (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Available-for-sale Securities, Debt Maturities [Abstract]
Due within one year, Amortized Cost	$ 1,030
Due after one year through five years, Amortized Cost	2,119
Due after five years through ten years, Amortized Cost	2,184
Due after ten years, Amortized Cost	1,950
Mortgage and asset-backed securities, Amortized Cost	2,300
Amortized Cost	9,583	9,550
Due within one year, Fair Value	1,036
Due after one year through five years, Fair Value	2,234
Due after five years through ten years, Fair Value	2,307
Due after ten years, Fair Value	2,134
Mortgage and asset-backed securities, Fair Value	2,324
Total debt securities, Fair Value	$ 10,035	$ 9,800

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Guarantees and Contingencies - Additional Information (Detail)	9 Months Ended	0 Months Ended	9 Months Ended
	Sep. 30, 2014 New Tricare South Region Contract	Jun. 26, 2013 Puerto Rico Health Insurance Administration Contracts East Southeast And Southwest Regions	Sep. 30, 2014 Military Services	Sep. 30, 2014 Medicare	Sep. 30, 2014 Medicaid
Loss Contingencies [Line Items]
Percentage of premiums and services revenue			1.00%	73.00%	2.00%
Contract term, years	5 years	3 years
Contract expiration date	Mar. 31, 2017	Jun. 30, 2013

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Schedule of Details of Dividend Payments (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012
Equity [Abstract]
Record Date	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 28, 2013	Mar. 28, 2013	Dec. 31, 2012
Payment Date	Oct. 31, 2014	Jul. 25, 2014	Apr. 25, 2014	Jan. 31, 2014	Oct. 25, 2013	Jul. 26, 2013	Apr. 26, 2013	Jan. 25, 2013
Amount per Share	$ 0.28	$ 0.28	$ 0.27	$ 0.27	$ 0.27	$ 0.27	$ 0.26	$ 0.26
Total Amount	$ 43	$ 43	$ 42	$ 42	$ 42	$ 42	$ 41	$ 42

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ACQUISITIONS

9 Months Ended

Sep. 30, 2014

Business Combinations [Abstract]

ACQUISITIONS

ACQUISITIONS

On September 6, 2013, we acquired American Eldercare Inc., or American Eldercare, the largest provider of nursing home diversion services in the state of Florida, serving frail and elderly individuals in home and community-based settings. American Eldercare complements our core capabilities and strength in serving seniors and disabled individuals with a unique focus on individualized and integrated care, and has contracts to provide Medicaid Long-Term Support Services across the entire state of Florida. The enrollment effective dates for the various regions ranged from August 2013 to March 2014. The allocation of the purchase price resulted in goodwill of $76 million and other intangible assets of $75 million. The goodwill was assigned to the Retail segment. The other intangible assets, which primarily consist of customer contracts and technology, have a weighted average useful life of 9.3 years. Goodwill and other intangible assets are amortizable as deductible expenses for tax purposes.

The results of operations and financial condition of American Eldercare have been included in our condensed consolidated statements of income and condensed consolidated balance sheets from the acquisition dates. In addition, during 2014 and 2013, we acquired other health and wellness related businesses which, individually or in the aggregate, have not had, or are not expected to have, a material impact on our results of operations, financial condition, or cash flows. Acquisition-related costs recognized in 2014 and 2013 were not material to our results of operations. The pro forma financial information assuming the acquisitions had occurred as of the beginning of the calendar year prior to the year of acquisition, as well as the revenues and earnings generated during the year of acquisition were not material for disclosure purposes.

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Changes in Carrying Amount of Goodwill by Reportable Segments (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Goodwill [Line Items]
Beginning Balance	$ 3,733
Acquisitions	3
Dispositions	(40)
Subsequent payments/adjustments	(1)
Ending Balance	3,695
Retail
Goodwill [Line Items]
Beginning Balance	1,007
Acquisitions	0
Dispositions	0
Subsequent payments/adjustments	0
Ending Balance	1,007
Employer Group
Goodwill [Line Items]
Beginning Balance	363
Acquisitions	0
Dispositions	0
Subsequent payments/adjustments	0
Ending Balance	363
Healthcare Services
Goodwill [Line Items]
Beginning Balance	2,271
Acquisitions	3
Dispositions	(40)
Subsequent payments/adjustments	(1)
Ending Balance	2,233
Other Businesses
Goodwill [Line Items]
Beginning Balance	92
Acquisitions	0
Dispositions	0
Subsequent payments/adjustments	0
Ending Balance	$ 92

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Basis of Presentation - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended		1 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Health Care Reform	Sep. 30, 2014 Health Care Reform Program	Dec. 31, 2013 Health Care Reform	Sep. 30, 2014 Commercial Medical
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of premium stabilization programs						3
Annual health insurance industry fee paid in September 2014					$ 562,000,000
Operating cost expense associated with amortization of deferred cost						421,000,000
Deferred cost asset					141,000,000	141,000,000	0
Percentage of premiums and services revenue applicable to risk spreading programs								17.70%
Operating costs associated with transitional reinsurance contributions						77,000,000
Ceded premiums						25,000,000	0
Ceded benefits						375,000,000	0
Payments due to HHS under risk adjustment, remittance period						30 days
Proceed for health care cost sharing subsidies for low-income individual members	$ 2,600,000,000	$ 2,000,000,000	$ 6,800,000,000	$ 5,200,000,000		$ 29,000,000

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SEGMENT INFORMATION (Tables)

9 Months Ended

Sep. 30, 2014

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, By Segment

Our segment results were as follows for the three and nine months ended September 30, 2014 and 2013, respectively:

	Retail		Employer Group		Healthcare Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Three months ended September 30, 2014
Revenues - external customers
Premiums:
Medicare Advantage	$	6,508	$	1,381	$	—	$	—	$	—		$	7,889
Medicare stand-alone PDP	804		2		—		—		—			806
Total Medicare	7,312		1,383		—		—		—			8,695
Fully-insured	926		1,335		—		—		—			2,261
Specialty	67		274		—		—		—			341
Military services	—		—		—		5		—			5
Medicaid and other	292		—		—		13		—			305
Total premiums	8,597		2,992		—		18		—			11,607
Services revenue:
Provider	—		6		302		—		—			308
ASO and other	10		84		—		108		—			202
Pharmacy	—		—		26		—		—			26
Total services revenue	10		90		328		108		—			536
Total revenues - external customers	8,607		3,082		328		126		—			12,143
Intersegment revenues
Services	—		22		3,851		—		(3,873		)	—
Products	—		—		968		—		(968		)	—
Total intersegment revenues	—		22		4,819		—		(4,841		)	—
Investment income	19		11		—		15		50			95
Total revenues	8,626		3,115		5,147		141		(4,791		)	12,238
Operating expenses:
Benefits	7,201		2,589		—		27		(151		)	9,666
Operating costs	1,063		487		4,908		96		(4,656		)	1,898
Depreciation and amortization	40		26		37		4		(22		)	85
Total operating expenses	8,304		3,102		4,945		127		(4,829		)	11,649
Income from operations	322		13		202		14		38			589
Interest expense	—		—		—		—		38			38
Income before income taxes	$	322	$	13	$	202	$	14	$	—		$	551

	Retail		Employer Group		Healthcare Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Three months ended September 30, 2013
Revenues - external customers
Premiums:
Medicare Advantage	$	5,552	$	1,193	$	—	$	—	$	—		$	6,745
Medicare stand-alone PDP	740		2		—		—		—			742
Total Medicare	6,292		1,195		—		—		—			7,487
Fully-insured	292		1,278		—		—		—			1,570
Specialty	54		273		—		—		—			327
Military services	—		—		—		6		—			6
Medicaid and other	76		—		—		232		—			308
Total premiums	6,714		2,746		—		238		—			9,698
Services revenue:
Provider	—		6		310		—		—			316
ASO and other	3		84		—		108		—			195
Pharmacy	—		—		17		—		—			17
Total services revenue	3		90		327		108		—			528
Total revenues - external customers	6,717		2,836		327		346		—			10,226
Intersegment revenues
Services	—		14		2,999		—		(3,013		)	—
Products	—		—		716		—		(716		)	—
Total intersegment revenues	—		14		3,715		—		(3,729		)	—
Investment income	19		10		—		15		49			93
Total revenues	6,736		2,860		4,042		361		(3,680		)	10,319
Operating expenses:
Benefits	5,647		2,316		—		230		(118		)	8,075
Operating costs	718		443		3,856		103		(3,580		)	1,540
Depreciation and amortization	33		25		37		5		(17		)	83
Total operating expenses	6,398		2,784		3,893		338		(3,715		)	9,698
Income from operations	338		76		149		23		35			621
Interest expense	—		—		—		—		35			35
Income before income taxes	$	338	$	76	$	149	$	23	$	—		$	586

	Retail		Employer Group		Healthcare Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Nine months ended September 30, 2014
Revenues - external customers
Premiums:
Medicare Advantage	$	19,443	$	4,131	$	—	$	—	$	—		$	23,574
Medicare stand-alone PDP	2,606		6		—		—		—			2,612
Total Medicare	22,049		4,137		—		—		—			26,186
Fully-insured	2,363		3,985		—		—		—			6,348
Specialty	192		824		—		—		—			1,016
Military services	—		—		—		15		—			15
Medicaid and other	667		—		—		42		—			709
Total premiums	25,271		8,946		—		57		—			34,274
Services revenue:
Provider	—		17		899		—		—			916
ASO and other	37		246		—		349		—			632
Pharmacy	—		—		72		—		—			72
Total services revenue	37		263		971		349		—			1,620
Total revenues - external customers	25,308		9,209		971		406		—			35,894
Intersegment revenues
Services	—		57		11,002		—		(11,059		)	—
Products	—		—		2,752		—		(2,752		)	—
Total intersegment revenues	—		57		13,754		—		(13,811		)	—
Investment income	56		32		—		45		145			278
Total revenues	25,364		9,298		14,725		451		(13,666		)	36,172
Operating expenses:
Benefits	21,371		7,417		—		82		(453		)	28,417
Operating costs	2,968		1,478		14,024		301		(13,253		)	5,518
Depreciation and amortization	112		75		108		12		(61		)	246
Total operating expenses	24,451		8,970		14,132		395		(13,767		)	34,181
Income from operations	913		328		593		56		101			1,991
Interest expense	—		—		—		—		108			108
Income (loss) before income taxes	$	913	$	328	$	593	$	56	$	(7	)	$	1,883

	Retail		Employer Group		Healthcare Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Nine months ended September 30, 2013
Revenues - external customers
Premiums:
Medicare Advantage	$	16,860	$	3,543	$	—	$	—	$	—		$	20,403
Medicare stand-alone PDP	2,286		6		—		—		—			2,292
Total Medicare	19,146		3,549		—		—		—			22,695
Fully-insured	856		3,819		—		—		—			4,675
Specialty	155		823		—		—		—			978
Military services	—		—		—		22		—			22
Medicaid and other	227		—		—		670		—			897
Total premiums	20,384		8,191		—		692		—			29,267
Services revenue:
Provider	—		15		928		—		—			943
ASO and other	7		250		—		342		—			599
Pharmacy	—		—		39		—		—			39
Total services revenue	7		265		967		342		—			1,581
Total revenues - external customers	20,391		8,456		967		1,034		—			30,848
Intersegment revenues
Services	—		37		8,706		—		(8,743		)	—
Products	—		—		2,050		—		(2,050		)	—
Total intersegment revenues	—		37		10,756		—		(10,793		)	—
Investment income	55		31		—		45		147			278
Total revenues	20,446		8,524		11,723		1,079		(10,646		)	31,126
Operating expenses:
Benefits	17,272		6,728		—		668		(307		)	24,361
Operating costs	1,971		1,299		11,223		347		(10,393		)	4,447
Depreciation and amortization	97		75		109		13		(51		)	243
Total operating expenses	19,340		8,102		11,332		1,028		(10,751		)	29,051
Income from operations	1,106		422		391		51		105			2,075
Interest expense	—		—		—		—		105			105
Income before income taxes	$	1,106	$	422	$	391	$	51	$	—		$	1,970

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Details of Intangible Assets Included in Other Long-Term Assets (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	10 years 5 months 24 days
Cost	$ 1,063	$ 1,095
Accumulated Amortization	456	402
Net	607	693
Customer contracts/relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	9 years 9 months 18 days
Cost	764	792
Accumulated Amortization	349	310
Net	415	482
Trade names and technology
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	13 years 2 months 12 days
Cost	198	200
Accumulated Amortization	54	40
Net	144	160
Provider contracts
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	15 years 1 month
Cost	51	51
Accumulated Amortization	19	23
Net	32	28
Noncompetes And Other
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	6 years 7 months
Cost	50	52
Accumulated Amortization	34	29
Net	$ 16	$ 23

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Basis of Presentation - Risk Adjustment, Risk Corridor and Reinsurance Recoverable Settlements (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Effects of Risk Spreading Premium Stabilization Programs [Line Items]
Current assets	$ 15,636	$ 12,300
Trade accounts payable and accrued expenses	(2,068)	(1,821)
Risk Adjustment/Risk Corridor Settlement | Health Care Reform
Effects of Risk Spreading Premium Stabilization Programs [Line Items]
Current assets	134	0
Trade accounts payable and accrued expenses	(53)	0
Net current asset (liability)	81	0
Reinsurance Contribution | Health Care Reform
Effects of Risk Spreading Premium Stabilization Programs [Line Items]
Current assets	0	0
Trade accounts payable and accrued expenses	(102)	0
Net current asset (liability)	(102)	0
Reinsurance Recoverables | Health Care Reform
Effects of Risk Spreading Premium Stabilization Programs [Line Items]
Current assets	375	0
Trade accounts payable and accrued expenses	0	0
Net current asset (liability)	$ 375	$ 0

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RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS Recently Issued Accounting Pronouncements (Details) (Healthcare Services, Segment Revenue Concentration Risk, Sales Revenue)	3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014
Healthcare Services | Segment Revenue Concentration Risk | Sales Revenue
Concentration Risk [Line Items]
Service revenue as a percent of consolidated revenues (less than 5%)	5.00%	5.00%

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RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

9 Months Ended

Sep. 30, 2014

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

In April 2014, the Financial Accounting Standards Board, or FASB, issued new guidance related to discontinued operations which changes the criteria for determining which disposals can be presented as discontinued operations and modifies related disclosure requirements. The new guidance is effective for us beginning with annual and interim periods in 2015 with early adoption permitted under certain circumstances. Based upon existing facts and circumstances, the adoption of the new guidance is not expected to have a material impact on our results of operations, financial condition, or cash flows.

In May 2014, the FASB issued new guidance that amends the accounting for revenue recognition. The amendments are intended to provide a more robust framework for addressing revenue issues, improve comparability of revenue recognition practices, and improve disclosure requirements. Insurance contracts are not in the scope of this new guidance. Accordingly, the new guidance primarily will apply to the recognition of our services revenue, including intersegment revenues associated with our Healthcare Services segment. Services revenue represented less than 5% of our consolidated revenues for the three and nine months ended September 30, 2014. The new guidance is effective for us beginning with annual and interim periods in 2017. We are currently evaluating the impact on our results of operations, financial condition, and cash flows.

There are no other recently issued accounting standards that apply to us or that are expected to have a material impact on our results of operations, financial condition, or cash flows.

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Acquisitions - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended		0 Months Ended		0 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 06, 2013 American Eldercare Inc.	Sep. 06, 2013 American Eldercare Inc.	Sep. 06, 2013 Customer Contracts and Technology American Eldercare Inc.
Business Acquisition [Line Items]
Date of acquisition			Sep. 06, 2013
Goodwill acquired	$ 3,695	$ 3,733		$ 76
Amount allocated to other intangible assets				$ 75
Other intangible assets useful life, years	10 years 5 months 24 days				9 years 3 months 18 days

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Changes in Fair Value of Assets Measured Using Significant Unobservable Inputs (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Beginning Balance	$ 37	$ 36	$ 37	$ 38
Realized in earnings	0	0	0	0
Unrealized in other comprehensive income	1	1	1	0
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	(1)
Ending Balance	38	37	38	37
Private Placement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Beginning Balance	24	23	24	25
Realized in earnings	0	0	0	0
Unrealized in other comprehensive income	1	1	1	0
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	(1)
Ending Balance	25	24	25	24
Auction Rate Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Beginning Balance	13	13	13	13
Realized in earnings	0	0	0	0
Unrealized in other comprehensive income	0	0	0	0
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	0
Ending Balance	$ 13	$ 13	$ 13	$ 13

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Segment Information - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Segment	Sep. 30, 2013
Segment Reporting [Abstract]
Number of reportable segments			3
Member co-share amounts and government subsidies	$ 2,600,000,000	$ 2,000,000,000	$ 6,800,000,000	$ 5,200,000,000
Depreciation and amortization classified as benefit expense	$ 27,000,000	$ 23,000,000	$ 79,000,000	$ 69,000,000

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Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 2,705	$ 1,138
Investment securities	8,088	8,090
Receivables, less allowance for doubtful accounts of $135 in 2014 and $118 in 2013:	1,004	950
Other current assets	3,839	2,122
Total current assets	15,636	12,300
Property and equipment, net	1,349	1,218
Long-term investment securities	1,947	1,710
Goodwill	3,695	3,733
Other long-term assets	1,704	1,774
Total assets	24,331	20,735
Current liabilities:
Benefits payable	4,676	3,893
Trade accounts payable and accrued expenses	2,068	1,821
Current portion of long-term debt	512	0
Book overdraft	267	403
Unearned revenues	246	206
Total current liabilities	7,769	6,323
Long-term debt	3,826	2,600
Future policy benefits payable	2,299	2,207
Other long-term liabilities	312	289
Total liabilities	14,206	11,419
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $1 par; 10,000,000 shares authorized; none issued	0	0
Common stock, $0.16 2/3 par; 300,000,000 shares authorized; 197,843,933 shares issued at September 30, 2014 and 196,275,506 shares issued at December 31, 2013	33	33
Capital in excess of par value	2,400	2,267
Retained earnings	9,813	8,942
Accumulated other comprehensive income	233	158
Treasury stock, at cost, 44,508,980 shares at September 30, 2014 and 42,245,097 shares at December 31, 2013	(2,354)	(2,084)
Total stockholders’ equity	10,125	9,316
Total liabilities and stockholders’ equity	$ 24,331	$ 20,735

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Schedule of Estimated Amortization Expense (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
2014	$ 112
2015	101
2016	94
2017	86
2018	79
2019	$ 67

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Condensed Consolidated Statements Of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities
Net income	$ 1,002	$ 1,261
Adjustments to reconcile net income to net cash provided by operating activities:
Net realized capital gains	(9)	(14)
Stock-based compensation	76	73
Depreciation and amortization	325	312
(Benefit) provision for deferred income taxes	(30)	31
Changes in operating assets and liabilities, net of effect of businesses acquired and dispositions:
Receivables	(68)	(89)
Other assets	(960)	(165)
Benefits payable	783	287
Other liabilities	238	24
Unearned revenues	40	(32)
Other, net	28	44
Net cash provided by operating activities	1,425	1,732
Cash flows from investing activities
Acquisitions, net of cash acquired	(3)	(161)
Proceeds from sale of business	72	33
Purchases of property and equipment	(361)	(310)
Purchases of investment securities	(1,949)	(2,665)
Maturities of investment securities	702	853
Proceeds from sales of investment securities	1,171	1,107
Net cash used in investing activities	(368)	(1,143)
Cash flows from financing activities
Receipts (withdrawals) from contract deposits, net	(743)	(201)
Proceeds from issuance of senior notes, net	1,733	0
Change in book overdraft	(136)	(51)
Common stock repurchases	(270)	(325)
Dividends paid	(129)	(125)
Excess tax benefit from stock-based compensation	10	6
Proceeds from stock option exercises and other	45	56
Net cash provided by (used in) financing activities	510	(640)
Increase (decrease) in cash and cash equivalents	1,567	(51)
Cash and cash equivalents at beginning of period	1,138	1,306
Cash and cash equivalents at end of period	2,705	1,255
Supplemental cash flow disclosures:
Interest payments	83	82
Income tax payments, net	$ 852	$ 724

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Schedule of Gross Unrealized Losses and Fair Values of Securities (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Investment [Line Items]
Less than 12 months, Fair Value	$ 697	$ 2,905
Less than 12 months, Gross Unrealized Losses	(7)	(118)
12 months or more, Fair Value	1,064	141
12 months or more, Gross Unrealized Losses	(44)	(9)
Total, Fair Value	1,761	3,046
Total, Gross Unrealized Losses	(51)	(127)
Debt Securities | Tax-exempt municipal securities
Investment [Line Items]
Less than 12 months, Fair Value	136	693
Less than 12 months, Gross Unrealized Losses	0	(28)
12 months or more, Fair Value	136	57
12 months or more, Gross Unrealized Losses	(3)	(5)
Total, Fair Value	272	750
Total, Gross Unrealized Losses	(3)	(33)
Debt Securities | Residential Mortgage-Backed Securities
Investment [Line Items]
Less than 12 months, Fair Value	1	6
Less than 12 months, Gross Unrealized Losses	0	0
12 months or more, Fair Value	4	1
12 months or more, Gross Unrealized Losses	0	0
Total, Fair Value	5	7
Total, Gross Unrealized Losses	0	0
Debt Securities | Commercial Mortgage-Backed Securities
Investment [Line Items]
Less than 12 months, Fair Value	145	270
Less than 12 months, Gross Unrealized Losses	(3)	(8)
12 months or more, Fair Value	206	40
12 months or more, Gross Unrealized Losses	(14)	(1)
Total, Fair Value	351	310
Total, Gross Unrealized Losses	(17)	(9)
Debt Securities | Asset-backed Securities
Investment [Line Items]
Less than 12 months, Fair Value	0	35
Less than 12 months, Gross Unrealized Losses	0	(1)
12 months or more, Fair Value	16	0
12 months or more, Gross Unrealized Losses	0	0
Total, Fair Value	16	35
Total, Gross Unrealized Losses	0	(1)
Debt Securities | Corporate Debt Securities
Investment [Line Items]
Less than 12 months, Fair Value	209	594
Less than 12 months, Gross Unrealized Losses	(3)	(28)
12 months or more, Fair Value	141	17
12 months or more, Gross Unrealized Losses	(9)	(2)
Total, Fair Value	350	611
Total, Gross Unrealized Losses	(12)	(30)
Debt Securities | U.S. Treasury And Other U.S. Government Corporations And Agencies | U.S. Treasury And Agency Obligations
Investment [Line Items]
Less than 12 months, Fair Value	59	231
Less than 12 months, Gross Unrealized Losses	0	(6)
12 months or more, Fair Value	86	5
12 months or more, Gross Unrealized Losses	(2)	0
Total, Fair Value	145	236
Total, Gross Unrealized Losses	(2)	(6)
Debt Securities | U.S. Treasury And Other U.S. Government Corporations And Agencies | Mortgage-Backed Securities
Investment [Line Items]
Less than 12 months, Fair Value	147	1,076
Less than 12 months, Gross Unrealized Losses	(1)	(47)
12 months or more, Fair Value	475	21
12 months or more, Gross Unrealized Losses	(16)	(1)
Total, Fair Value	622	1,097
Total, Gross Unrealized Losses	$ (17)	$ (48)

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FAIR VALUE (Tables)

9 Months Ended

Sep. 30, 2014

Fair Value Disclosures [Abstract]

Financial Assets Measured at Fair Value on Recurring Basis

The following table summarizes our fair value measurements at September 30, 2014 and December 31, 2013, respectively, for financial assets measured at fair value on a recurring basis:

	Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets (Level 1)		Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(in millions)
September 30, 2014
Cash equivalents	$	2,606	$	2,606	$	—	$	—
Debt securities:
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	852		—		852		—
Mortgage-backed securities	1,569		—		1,569		—
Tax-exempt municipal securities	3,151		—		3,138		13
Mortgage-backed securities:
Residential	18		—		18		—
Commercial	696		—		696		—
Asset-backed securities	41		—		40		1
Corporate debt securities	3,708		—		3,684		24
Total debt securities	10,035		—		9,997		38
Total invested assets	$	12,641	$	2,606	$	9,997	$	38
December 31, 2013
Cash equivalents	$	876	$	876	$	—	$	—
Debt securities:
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	584		—		584		—
Mortgage-backed securities	1,820		—		1,820		—
Tax-exempt municipal securities	2,971		—		2,958		13
Mortgage-backed securities:
Residential	22		—		22		—
Commercial	673		—		673		—
Asset-backed securities	63		—		62		1
Corporate debt securities	3,667		—		3,644		23
Total debt securities	9,800		—		9,763		37
Total invested assets	$	10,676	$	876	$	9,763	$	37

Changes in Fair Value of Assets Measured Using Significant Unobservable Inputs

During the three and nine months ended September 30, 2014 and 2013, the changes in the fair value of the assets measured using significant unobservable inputs (Level 3) were comprised of the following:

	For the three months ended September 30,
	2014						2013
	Private Placements		Auction Rate Securities		Total		Private Placements			Auction Rate Securities		Total
	(in millions)
Beginning balance at April 1	$	24	$	13	$	37	$	23		$	13	$	36
Total gains or losses:
Realized in earnings	—		—		—		—			—		—
Unrealized in other comprehensive income	1		—		1		1			—		1
Purchases	—		—		—		—			—		—
Sales	—		—		—		—			—		—
Settlements	—		—		—		—			—		—
Balance at September 30	$	25	$	13	$	38	$	24		$	13	$	37
	For the nine months ended September 30,
	2014						2013
	Private Placements		Auction Rate Securities		Total		Private Placements			Auction Rate Securities		Total
	(in millions)
Beginning balance at January 1	$	24	$	13	$	37	$	25		$	13	$	38
Total gains or losses:
Realized in earnings	—		—		—		—			—		—
Unrealized in other comprehensive income	1		—		1		—			—		—
Purchases	—		—		—		—			—		—
Sales	—		—		—		—			—		—
Settlements	—		—		—		(1		)	—		(1		)
Balance at September 30	$	25	$	13	$	38	$	24		$	13	$	37

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Schedule of Realized Gains (Losses) Related to Investment Securities Included Within Investment Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Investments, Debt and Equity Securities [Abstract]
Gross realized gains	$ 7	$ 7	$ 14	$ 24
Gross realized losses	(1)	(3)	(5)	(10)
Net realized capital gains	$ 6	$ 4	$ 9	$ 14

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GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill By Reportable Segments

Changes in the carrying amount of goodwill for our reportable segments for the nine months ended September 30, 2014 were as follows:

	Retail		Employer Group		Healthcare Services			Other Businesses		Total
	(in millions)
Balance at January 1, 2014	$	1,007	$	363	$	2,271		$	92	$	3,733
Acquisitions	—		—		3			—		3
Dispositions	—		—		(40		)	—		(40		)
Subsequent payments/adjustments	—		—		(1		)	—		(1		)
Balance at September 30, 2014	$	1,007	$	363	$	2,233		$	92	$	3,695

Details of Intangible Assets Included in Other Long-Term Assets

The following table presents details of our other intangible assets included in other long-term assets in the accompanying condensed consolidated balance sheets at September 30, 2014 and December 31, 2013:

		September 30, 2014						December 31, 2013
	Weighted Average Life	Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
	(in millions)
Other intangible assets:
Customer contracts/ relationships	9.8 yrs	$	764	$	349	$	415	$	792	$	310	$	482
Trade names and technology	13.2 yrs	198		54		144		200		40		160
Provider contracts	15.1 yrs	51		19		32		51		23		28
Noncompetes and other	6.6 yrs	50		34		16		52		29		23
Total other intangible assets	10.5 yrs	$	1,063	$	456	$	607	$	1,095	$	402	$	693

Schedule of Estimated Amortization Expense

The following table presents our estimate of amortization expense for 2014 and each of the five next succeeding years:

	(in millions)
For the years ending December 31,:
2014	$	112
2015	101
2016	94
2017	86
2018	79
2019	67

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BASIS OF PRESENTATION

9 Months Ended

Sep. 30, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

BASIS OF PRESENTATION

BASIS OF PRESENTATION

The accompanying condensed consolidated financial statements are presented in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures normally required by accounting principles generally accepted in the United States of America, or GAAP, or those normally made in an Annual Report on Form 10-K. The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP. For further information, the reader of this Form 10-Q should refer to our Form 10-K for the year ended December 31, 2013, that was filed with the Securities and Exchange Commission, or the SEC, on February 19, 2014, as retrospectively adjusted as it relates to the effects of the business segment reclassifications as described more fully below in our current report on Form 8-K filed with the SEC on September 16, 2014. We refer to the Form 10-K and Form 8-K collectively as the “2013 Form 10-K” in this document. References throughout this document to “we,” “us,” “our,” “Company,” and “Humana” mean Humana Inc. and its subsidiaries.

The preparation of our condensed consolidated financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. The areas involving the most significant use of estimates are the estimation of benefits payable, the impact of risk sharing provisions related to our Medicare contracts, the valuation and related impairment recognition of investment securities, and the valuation and related impairment recognition of long-lived assets, including goodwill. These estimates are based on knowledge of current events and anticipated future events, and accordingly, actual results may ultimately differ materially from those estimates. Refer to Note 2 to the consolidated financial statements included in our 2013 Form 10-K for information on accounting policies that we consider in preparing our consolidated financial statements.

The financial information has been prepared in accordance with our customary accounting practices and has not been audited. In our opinion, the information presented reflects all adjustments necessary for a fair statement of interim results. All such adjustments are of a normal and recurring nature.

Business Segment Reclassifications

On January 1, 2014, we reclassified certain of our businesses from our Healthcare Services segment to our Employer Group segment to correspond with internal management reporting changes. Our reportable segments remain the same and prior period segment financial information has been recast to conform to the 2014 presentation. See Note 13 for segment financial information.

Health Care Reform

The Patient Protection and Affordable Care Act and The Health Care and Education Reconciliation Act of 2010 (which we collectively refer to as the Health Care Reform Law) enacted significant reforms to various aspects of the U.S. health insurance industry. Certain of these reforms became effective January 1, 2014, including an annual insurance industry premium-based fee and the establishment of federally-facilitated or state-based exchanges coupled with three premium stabilization programs, as described more fully below.

The Health Care Reform Law imposes an annual premium-based fee on health insurers for each calendar year beginning on or after January 1, 2014 which is not deductible for tax purposes. We are required to estimate a liability for the health insurer fee and record it in full once qualifying insurance coverage is provided in the applicable calendar year in which the fee is payable with a corresponding deferred cost that is amortized ratably to expense over the same calendar year. In September 2014, we paid the federal government $562 million for the annual health insurance industry fee attributed to calendar year 2014, in accordance with the Health Care Reform Law. We recorded the deferred cost in other current assets in our condensed consolidated financial statements. Amortization of the deferred cost resulted in operating cost expense of approximately $421 million for the nine months ended September 30, 2014 and a remaining deferred cost asset balance of approximately $141 million at September 30, 2014. No such amounts were recorded at December 31, 2013 as the qualifying insurance coverage was not provided until January 1, 2014.

The Health Care Reform Law also establishes risk spreading premium stabilization programs effective January 1, 2014. The risk spreading programs are applicable to certain of our commercial medical insurance products. In the aggregate, our commercial medical insurance products represented approximately 17.7% of our total premiums and services revenue for the nine months ended September 30, 2014. These programs, commonly referred to as the 3Rs, include a permanent risk adjustment program, a transitional reinsurance program, and a temporary risk corridors program designed to more evenly spread the financial risk borne by issuers and to mitigate the risk that issuers would have mispriced products. The transitional reinsurance and temporary risk corridors programs are for years 2014 through 2016, with potential for additional reinsurance recoveries through 2018 to the extent funds are available. Policies issued prior to March 23, 2010 are considered grandfathered policies and are exempt from the 3Rs. Certain states have allowed non-grandfathered policies issued prior to January 1, 2014 to extend the date of required transition to policies compliant with the Health Care Reform Law to as late as 2017. Accordingly, such policies are exempt from the 3Rs until they transition to policies compliant with the Health Care Reform Law.

The permanent risk adjustment program adjusts the premiums that commercial individual and small group health insurance issuers receive based on the demographic factors and health status of each member as derived from current year medical diagnosis as reported throughout the year. This program transfers funds from lower risk plans to higher risk plans within similar plans in the same state. The risk adjustment program is applicable to commercial individual and small group health plans (except certain exempt and grandfathered plans as discussed above) operating both inside and outside of the health insurance exchanges established under the Health Care Reform Law. Under the risk adjustment program, a risk score is assigned to each covered member to determine an average risk score at the individual and small group level by legal entity in a particular market in a state. Additionally, an average risk score is determined for the entire subject population for each market in each state. Settlements are determined on a net basis by legal entity and state. Each health insurance issuer’s average risk score is compared to the state’s average risk score. Plans with an average risk score below the state average will pay into a pool and health insurance issuers with an average risk score that is greater than the state average risk score will receive money from that pool. We generally rely on providers, including certain network providers who are our employees, to appropriately document all medical data, including the diagnosis codes submitted with claims, as the basis for our risk scores under the program. Our estimate of amounts receivable and/or payable under the risk adjustment program is based on our estimate of both our own and the state average risk scores. Assumptions used in these estimates include but are not limited to geographic considerations including our historical experience in markets we have participated in over a long period of time, member demographics including age and gender for our members and other health insurance issuers, our pricing model, sales data for each metal tier (different metal tiers yield different risk scores), the mix of previously underwritten membership as compared to new members in plans compliant with the Health Care Reform Law, published third party studies, and other publicly available data including regulatory plan filings. We expect to refine our estimates as new information becomes available, including additional data released by the Department of Health and Human Services, or HHS, regarding estimates of state average risk scores. Risk adjustment will be subject to audit by HHS beginning in 2014, however, there will be no payments associated with these audits for 2014 or 2015, the first two years of the program.

The temporary risk corridor program applies to individual and small group Qualified Health Plans (or substantially equivalent plans), or QHPs, as defined by HHS, operating both inside and outside of the exchanges. Accordingly, plans subject to risk adjustment that are not QHPs, including our small group health plans, will not be subject to the risk corridor program. The risk corridor provisions limit issuer gains and losses by comparing allowable medical costs to a target amount, each defined/prescribed by HHS, and sharing the risk for allowable costs with the federal government. Allowable medical costs are adjusted for risk adjustment settlements, transitional reinsurance recoveries, and cost sharing reductions received from HHS. Variances from the target exceeding certain thresholds may result in HHS making additional payments to us or require us to refund HHS a portion of the premiums we received. While risk corridor payments from HHS were expected to be limited to the extent of the risk corridor collections received by HHS over the duration of the program, on May 16, 2014, HHS released clarifying guidance. This guidance indicated that risk corridor collections are expected to be sufficient to make all risk corridor payments. However, in the event of a shortfall, HHS has indicated that it intends to find other sources of funding for the risk corridors payments, subject to the availability of the requisite appropriations by Congress.

We estimate and recognize adjustments to premiums revenue for the risk adjustment and risk corridor provisions by projecting our ultimate premium for the calendar year separately for individual and group plans by state and legal entity. Estimated calendar year settlement amounts are recognized ratably during the year and are revised each period to reflect current experience, including changes in risk scores derived from medical diagnoses submitted by providers. We record receivables or payables at the individual or group level within each state and legal entity and classify the amounts as current or long-term in the condensed consolidated balance sheets based on the timing of expected settlement.

The transitional reinsurance program requires us to make reinsurance contributions for calendar years 2014 through 2016 to a state or HHS established reinsurance entity based on a national contribution rate per covered member as determined by HHS. While all commercial medical plans, including self-funded plans, are required to fund the reinsurance entity, only fully-insured non-grandfathered plans compliant with the Health Care Reform Law in the individual commercial market will be eligible for recoveries if individual claims exceed a specified threshold. Accordingly, we account for transitional reinsurance contributions associated with all commercial medical health plans other than these non-grandfathered individual plans as an assessment in operating costs in our condensed consolidated statements of income. We account for contributions made by individual commercial plans compliant with the Health Care Reform Law, which are subject to recoveries, as ceded premiums (a reduction of premiums) and similarly we account for any recoveries as ceded benefits (a reduction of benefits expense) in our condensed consolidated statements of income. For the nine months ended September 30, 2014, we recorded operating costs of $77 million associated with transitional reinsurance contributions for plans other than non-grandfathered individual commercial plans. In addition, for our non-grandfathered individual commercial plans we recorded ceded premiums of $25 million and recorded ceded benefits of $375 million in our condensed consolidated statements of income for the nine months ended September 30, 2014. No such amounts were recorded in 2013 as the program was not effective until January 1, 2014.

The accompanying condensed consolidated balance sheets include the following amounts associated with the 3Rs at September 30, 2014. No such amounts were recorded in our condensed consolidated balance sheet at December 31, 2013 as the programs were not effective until January 1, 2014.

	September 30, 2014
	Risk Adjustment/Risk Corridor Settlement			Reinsurance Contribution			Reinsurance Recoverables
	(in millions)
Current assets	$	134		$	—		$	375
Trade accounts payable and accrued expenses	(53		)	(102		)	—
Net current asset (liability)	$	81		$	(102	)	$	375

We are required to remit payment for our per member reinsurance contribution in January of the year following the benefit year, or January 2015 for the 2014 benefit year. Risk adjustment calculations will be completed and HHS will notify us of recoveries due or payments owed to/from us under the risk adjustment and reinsurance programs by June 30 of the year following the benefit year. Payments due to HHS under the risk adjustment program must be remitted within 30 days of notification and will be collected prior to the distribution of recoveries by HHS. Following this notification, risk corridor calculations are then due by July 31 of the year following the benefit year. Payment and recovery amounts will be settled with HHS annually in the second half of the year following the benefit year. Accordingly, for the 2014 benefit year, we expect to receive recoveries and/or pay amounts due under these programs in the second half of 2015.

In addition to the provisions discussed above, beginning in 2014, HHS pays us a portion of the health care costs for low-income individual members for which we assume no risk in accordance with the Health Care Reform Law. We account for these subsidies as a deposit in our consolidated balance sheets and as a financing activity in our consolidated statements of cash flows. We do not recognize premiums revenue or benefits expense for these subsidies. Receipt and payment activity is accumulated at the state and legal entity level and recorded in our consolidated balance sheets in other current assets or trade accounts payable and accrued expenses depending on the state and legal entity balance at the end of the reporting period. We will be notified of final settlement amounts by June 30 of the year following the benefit year. Receipts from HHS associated with these cost sharing subsidies for which we do not assume risk were $29 million higher than claims payments for the nine months ended September 30, 2014.

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Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Receivables, allowance for doubtful accounts	$ 135	$ 118
Preferred stock, par	$ 1	$ 1
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, issued	0	0
Common stock, par	$ 0.1667	$ 0.1667
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	197,843,933	196,275,506
Treasury stock, shares	44,508,980	42,245,097

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DEBT

9 Months Ended

Sep. 30, 2014

Debt Disclosure [Abstract]

DEBT

DEBT

The carrying value of long-term debt outstanding, including the current portion, was as follows at September 30, 2014 and December 31, 2013:

	September 30, 2014		December 31, 2013
	(in millions)
Senior notes:
$500 million, 6.45% due June 1, 2016	$	512	$	517
$500 million, 7.20% due June 15, 2018	505		505
$300 million, 6.30% due August 1, 2018	312		314
$400 million, 2.625% due October 1, 2019	400		—
$600 million, 3.15% due December 1, 2022	598		598
$600 million, 3.85% due October 1, 2024	599		—
$250 million, 8.15% due June 15, 2038	266		266
$400 million, 4.625% due December 1, 2042	400		400
$750 million, 4.95% due October 1, 2044	746		—
Total debt	$	4,338	$	2,600
Less current portion of long-term debt	512		—
Total long-term debt	$	3,826	$	2,600

Senior Notes

In September 2014, we issued $400 million of 2.625% senior notes due October 1, 2019, $600 million of 3.85% senior notes due October 1, 2024 and $750 million of 4.95% senior notes due October 1, 2044. Our net proceeds, reduced for the underwriters' discount and commission and offering expenses, were $1.73 billion. We used a portion of the net proceeds to redeem the 6.45% senior unsecured notes as discussed below, and intend to use some or all of the remaining net proceeds to repurchase shares of our common stock and for general corporate purposes.

In October 2014, we redeemed the $500 million 6.45% senior unsecured notes due June 1, 2016, at 100% of the principal amount plus applicable premium for early redemption and accrued and unpaid interest to the redemption date, for cash totaling approximately $560 million. We recognized a loss on extinguishment of debt of approximately $37 million in October 2014 for the redemption of these notes.

Our senior notes, which are unsecured, may be redeemed at our option at any time at 100% of the principal amount plus accrued interest and a specified make-whole amount. The 7.20% and 8.15% senior notes are subject to an interest rate adjustment if the debt ratings assigned to the notes are downgraded (or subsequently upgraded). In addition, our senior notes (other than the 6.30% senior notes) contain a change of control provision that may require us to purchase the notes under certain circumstances.

Prior to 2009, we were parties to interest-rate swap agreements that exchanged the fixed interest rate under our senior notes for a variable interest rate based on LIBOR. As a result, the carrying value of the senior notes was adjusted to reflect changes in value caused by an increase or decrease in interest rates. During 2008, we terminated all of our swap agreements. The cumulative adjustment to the carrying value of our senior notes was $103 million as of the termination date which is being amortized as a reduction to interest expense over the remaining term of the senior notes. The unamortized carrying value adjustment was $45 million as of September 30, 2014 and $54 million as of December 31, 2013. In October 2014, the redemption of our 6.45% senior notes reduced the unamortized carrying value adjustment by $12 million.

Credit Agreement

Our 5-year $1.0 billion unsecured revolving credit agreement expires July 2018. Under the credit agreement, at our option, we can borrow on either a competitive advance basis or a revolving credit basis. The revolving credit portion bears interest at either LIBOR plus a spread or the base rate plus a spread. The LIBOR spread, currently 110 basis points, varies depending on our credit ratings ranging from 90.0 to 150.0 basis points. We also pay an annual facility fee regardless of utilization. This facility fee, currently 15 basis points, may fluctuate between 10.0 and 25.0 basis points, depending upon our credit ratings. The competitive advance portion of any borrowings will bear interest at market rates prevailing at the time of borrowing on either a fixed rate or a floating rate based on LIBOR, at our option.

The terms of the credit agreement include standard provisions related to conditions of borrowing, including a customary material adverse effect clause which could limit our ability to borrow additional funds. In addition, the credit agreement contains customary restrictive and financial covenants as well as customary events of default, including financial covenants regarding the maintenance of a minimum level of net worth of $7.6 billion at September 30, 2014 and a maximum leverage ratio of 3.0:1. We are in compliance with the financial covenants, with actual net worth of $10.1 billion and an actual leverage ratio of 1.8:1, as measured in accordance with the credit agreement as of September 30, 2014. In addition, the credit agreement includes an uncommitted $250 million incremental loan facility.

At September 30, 2014, we had no borrowings outstanding under the credit agreement and we had outstanding letters of credit of $5 million secured under that credit agreement. No amounts have been drawn on these letters of credit. Accordingly, as of September 30, 2014, we had $995 million of remaining borrowing capacity under the credit agreement, none of which would be restricted by our financial covenant compliance requirement. We have other customary, arms-length relationships, including financial advisory and banking, with some parties to the credit agreement.

Commercial Paper

In October 2014, we entered into a commercial paper program pursuant to which we may issue short-term, unsecured commercial paper notes privately placed on a discount basis through certain broker dealers. Amounts available under the program may be borrowed, repaid and re-borrowed from time to time, with the aggregate face or principal amounts outstanding under the program at any time not to exceed $1 billion. The net proceeds of issuances are expected to be used for general corporate purposes, including to repurchase shares of our common stock. As of November 6, 2014, we had $150 million outstanding in our commercial paper program.

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Document and Entity Information	9 Months Ended
	Sep. 30, 2014
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q3
Trading Symbol	HUM
Entity Registrant Name	HUMANA INC
Entity Central Index Key	0000049071
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	153,334,953

XML

GUARANTEES AND CONTINGENCIES

9 Months Ended

Sep. 30, 2014

Commitments and Contingencies Disclosure [Abstract]

GUARANTEES AND CONTINGENCIES

GUARANTEES AND CONTINGENCIES

Government Contracts

Our Medicare products, which accounted for approximately 73% of our total premiums and services revenue for the nine months ended September 30, 2014, primarily consisted of products covered under the Medicare Advantage and Medicare Part D Prescription Drug Plan contracts with the federal government. These contracts are renewed generally for a calendar year term unless CMS notifies us of its decision not to renew by May 1 of the calendar year in which the contract would end, or we notify CMS of our decision not to renew by the first Monday in June of the calendar year in which the contract would end. All material contracts between Humana and CMS relating to our Medicare products have been renewed for 2015, and all of our product offerings filed with CMS for 2015 have been approved.

CMS uses a risk-adjustment model which apportions premiums paid to Medicare Advantage plans according to health severity of covered members. The risk-adjustment model pays more for enrollees with predictably higher costs. Under this model, rates paid to Medicare Advantage plans are based on actuarially determined bids, which include a process whereby our prospective payments are based on a comparison of our beneficiaries’ risk scores, derived from medical diagnoses, to those enrolled in the government’s original Medicare program. Under the risk-adjustment methodology, all Medicare Advantage plans must collect and submit the necessary diagnosis code information from hospital inpatient, hospital outpatient, and physician providers to CMS within prescribed deadlines. The CMS risk-adjustment model uses the diagnosis data to calculate the risk-adjusted premium payment to Medicare Advantage plans, which CMS adjusts for coding pattern differences between the health plans and the government fee-for-service program. We generally rely on providers, including certain providers in our network who are our employees, to code their claim submissions with appropriate diagnoses, which we send to CMS as the basis for our payment received from CMS under the actuarial risk-adjustment model. We also rely on these providers to document appropriately all medical data, including the diagnosis data submitted with claims. In addition, we conduct medical record reviews as part of our data and payment accuracy compliance efforts, to more accurately reflect diagnosis conditions under the risk adjustment model. These compliance efforts include the internal contract level audits described in more detail below.

CMS is continuing to perform audits of various companies’ selected Medicare Advantage contracts related to this risk adjustment diagnosis data. We refer to these audits as Risk-Adjustment Data Validation Audits, or RADV audits. RADV audits review medical records in an attempt to validate provider medical record documentation and coding practices which influence the calculation of premium payments to Medicare Advantage plans.

In 2012, CMS released a “Notice of Final Payment Error Calculation Methodology for Part C Medicare Advantage Risk Adjustment Data Validation (RADV) Contract-Level Audits.” The payment error calculation methodology provides that, in calculating the economic impact of audit results for a Medicare Advantage contract, if any, the results of the audit sample will be extrapolated to the entire Medicare Advantage contract based upon a comparison to “benchmark” audit data in the government fee-for-service program. This comparison to the government program benchmark audit is necessary to determine the economic impact, if any, of audit results because the government program data set, including any attendant errors that are present in that data set, provides the basis for Medicare Advantage plans’ risk adjustment to payment rates. CMS already makes other adjustments to payment rates based on a comparison of coding pattern differences between Medicare Advantage plans and the government fee-for-service program data (such as for frequency of coding for certain diagnoses in Medicare Advantage plan data versus the government program data set).

The final methodology, including the first application of extrapolated audit results to determine audit settlements, is expected to be applied to the current round of RADV contract level audits being conducted on 2011 premium payments. Selected Medicare Advantage contracts will be notified of an audit at some point after the close of the final reconciliation for the payment year being audited. The final reconciliation occurs in August of the calendar year following the payment year. On November 5, 2013, we were notified that certain of our Medicare Advantage contracts have been selected for audit for contract year 2011.

Estimated audit settlements are recorded as a reduction of premiums revenue in our consolidated statements of income, based upon available information. We perform internal contract level audits based on the RADV audit methodology prescribed by CMS. Included in these internal contract level audits is an audit of our Private Fee-For-Service business which we used to represent a proxy of the benchmark audit data in the government fee-for-service program which has not yet been released. We based our accrual of estimated audit settlements for contract years 2011 (the first year that application of extrapolated audit results is applicable) through 2014 on the results of these internal contract level audits and update our estimates as each audit is completed. Estimates derived from these results were not material to our results of operations, financial position, or cash flows. However, as indicated, we are awaiting additional guidance from CMS regarding the benchmark audit data in the government fee-for-service program. Accordingly, we cannot determine whether such RADV audits will have a material adverse effect on our results of operations, financial position, or cash flows.

In addition, CMS' recent comments in formalized guidance regarding “overpayments” to Medicare Advantage plans appear to be inconsistent with the Agency’s prior RADV audit guidance. These statements, contained in the preamble to CMS’ final rule release regarding Medicare Advantage and Part D prescription drug benefit program regulations for Contract Year 2015, appear to equate each Medicare Advantage risk adjustment data error with an “overpayment” without reconciliation to the principles underlying the FFS Adjuster referenced above. We will continue to work with CMS to ensure that Medicare Advantage plans are paid accurately and that payment model principles are in accordance with the requirements of the Social Security Act, which, if not implemented correctly could have a material adverse effect on our results of operations, financial position, or cash flows.

At September 30, 2014, our military services business, which accounted for approximately 1% of our total premiums and services revenue for the nine months ended September 30, 2014, primarily consisted of the TRICARE South Region contract. The current 5-year South Region contract, which expires March 31, 2017, is subject to annual renewals on April 1 of each year during its term at the government’s option. On March 14, 2014, the Defense Health Agency, or DHA, exercised its option to extend the TRICARE South Region contract through March 31, 2015.

The loss of any of the contracts above or significant changes in these programs as a result of legislative or regulatory action, including reductions in premium payments to us, regulatory restrictions on profitability, including by comparison of our Medicare Advantage profitability to our non-Medicare Advantage business profitability and a requirement that they remain within certain ranges of each other, or increases in member benefits without corresponding increases in premium payments to us, may have a material adverse effect on our results of operations, financial position, and cash flows.

Our state-based Medicaid business accounted for approximately 2% of our total premiums and services revenue for the nine months ended September 30, 2014. In addition to our state-based Medicaid contracts in Florida and Kentucky, we have contracts in Illinois and Virginia for stand-alone dual eligible demonstration programs serving individuals dually eligible for both the federal Medicare program and the applicable state-based Medicaid program. We began serving members in Illinois in the first quarter of 2014 and in Virginia in the second quarter of 2014. In addition, we began serving members in Long-Term Care Support Services (LTSS) regions in Florida at various effective dates ranging from the second half of 2013 through the first quarter of 2014.

On June 26, 2013, the Puerto Rico Health Insurance Administration notified us of its election not to renew our three-year Medicaid contracts for the East, Southeast, and Southwest regions which ended June 30, 2013. Contractual transition provisions required the continuation of insurance coverage for beneficiaries through September 30, 2013 and also required an additional period of time thereafter to process residual claims.

Legal Proceedings and Certain Regulatory Matters

Florida Matters

On December 16, 2010, an individual filed a qui tam suit captioned United States of America ex rel. Marc Osheroff v. Humana et al. in the Southern District of Florida, against us, several of our health plan subsidiaries, and certain other companies that operate medical centers in Miami-Dade County, Florida. After the U.S. government declined to intervene, the Court ordered the complaint unsealed, and the individual plaintiff amended his complaint and served the Company on December 8, 2011. The amended complaint alleges certain civil violations by our CAC Medical Centers in Florida, including offering various amenities such as transportation and meals, to Medicare and dual eligible individuals in our community center settings. The amended complaint also alleges civil violations by our Medicare Advantage health plans in Florida, arising from the alleged activities of our CAC Medical Centers and the codefendants in the complaint. The amended complaint seeks damages and penalties on behalf of the United States under the Anti-Inducement and Anti-Kickback Statutes and the False Claims Act. On September 28, 2012, the Court dismissed, with prejudice, all causes of action that were asserted in the suit. On November 19, 2013, the individual plaintiff appealed the dismissal of the complaint, and we are awaiting the decision of the Court on the appeal.

On January 6, 2012, the Civil Division of the United States Attorney’s Office for the Southern District of Florida advised us that it is seeking documents and information from us and several of our affiliates relating to several matters including the coding of medical claims by one or more South Florida medical providers, and loans to physician practices. On May 1, 2014, the U.S. government filed a Notice of Non-Intervention in connection with a civil qui tam suit related to one of these matters captioned United States of America ex rel. Olivia Graves v. Plaza Medical Centers, et al., and the Court ordered the complaint unsealed. Subsequently, the individual plaintiff amended the complaint and served the Company, opting to continue to pursue the action. On October 7, 2014 the Court dismissed the complaint and granted leave to amend. The individual plaintiff filed a second amended complaint on October 23, 2014. We continue to cooperate with and respond to information requests from the U.S. Attorney’s office. These matters could result in additional qui tam litigation.

Other Lawsuits and Regulatory Matters

Our current and past business practices are subject to review or other investigations by various state insurance and health care regulatory authorities and other state and federal regulatory authorities. These authorities regularly scrutinize the business practices of health insurance and benefits companies. These reviews focus on numerous facets of our business, including claims payment practices, provider contracting, risk adjustment, competitive practices, commission payments, privacy issues, utilization management practices, pharmacy benefits, access to care, and sales practices, among others. Some of these reviews have historically resulted in fines imposed on us and some have required changes to some of our practices. We continue to be subject to these reviews, which could result in additional fines or other sanctions being imposed on us or additional changes in some of our practices.

We also are involved in various other lawsuits that arise, for the most part, in the ordinary course of our business operations, certain of which may be styled as class-action lawsuits. Among other matters, this litigation may include employment matters, claims of medical malpractice, bad faith, nonacceptance or termination of providers, anticompetitive practices, improper rate setting, provider contract rate disputes, failure to disclose network discounts and various other provider arrangements, general contractual matters, intellectual property matters, and challenges to subrogation practices. For example, a number of hospitals and other providers have asserted that, under their network provider contracts, we are not entitled to reduce Medicare Advantage payments to these providers in connection with changes in Medicare payment systems and in accordance with the Balanced Budget and Emergency Deficit Control Act of 1985, as amended (commonly referred to as “sequestration”). Those challenges have led and could lead to arbitration demands or other litigation. Also, under state guaranty assessment laws, we may be assessed (up to prescribed limits) for certain obligations to the policyholders and claimants of insolvent insurance companies that write the same line or lines of business as we do.

As a government contractor, we may also be subject to qui tam litigation brought by individuals who seek to sue on behalf of the government, alleging that the government contractor submitted false claims to the government including, among other allegations, those resulting from coding and review practices under the Medicare risk adjustment model. Qui tam litigation is filed under seal to allow the government an opportunity to investigate and to decide if it wishes to intervene and assume control of the litigation. If the government does not intervene, the lawsuit is unsealed, and the individual may continue to prosecute the action on his or her own, on behalf of the government. We also are subject to other allegations of non-performance of contractual obligations to providers, members, and others, including failure to properly pay claims, improper policy terminations, challenges to our implementation of the Medicare Part D prescription drug program and other litigation.

A limited number of the claims asserted against us are subject to insurance coverage. Personal injury claims, claims for extracontractual damages, care delivery malpractice, and claims arising from medical benefit denials are covered by insurance from our wholly owned captive insurance subsidiary and excess carriers, except to the extent that claimants seek punitive damages, which may not be covered by insurance in certain states in which insurance coverage for punitive damages is not permitted. In addition, insurance coverage for all or certain forms of liability has become increasingly costly and may become unavailable or prohibitively expensive in the future.

We record accruals for the contingencies discussed above to the extent that we conclude it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated. No estimate of the possible loss or range of loss in excess of amounts accrued, if any, can be made at this time regarding the matters specifically described above because of the inherently unpredictable nature of legal proceedings, which also may be exacerbated by various factors, including: (i) the damages sought in the proceedings are unsubstantiated or indeterminate; (ii) discovery is not complete; (iii) the proceeding is in its early stages; (iv) the matters present legal uncertainties; (v) there are significant facts in dispute; (vi) there are a large number of parties (including where it is uncertain how liability, if any, will be shared among multiple defendants); or (vii) there is a wide range of potential outcomes.

The outcome of any current or future litigation or governmental or internal investigations, including the matters described above, cannot be accurately predicted, nor can we predict any resulting penalties, fines or other sanctions that may be imposed at the discretion of federal or state regulatory authorities. Nevertheless, it is reasonably possible that any such outcome of litigation, penalties, fines or other sanctions could be substantial, and the outcome of these matters may have a material adverse effect on our results of operations, financial position, and cash flows, and may also affect our reputation.

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Condensed Consolidated Statements Of Income (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenues:
Premiums	$ 11,607	$ 9,698	$ 34,274	$ 29,267
Services	536	528	1,620	1,581
Investment income	95	93	278	278
Total revenues	12,238	10,319	36,172	31,126
Operating expenses:
Benefits	9,666	8,075	28,417	24,361
Operating costs	1,898	1,540	5,518	4,447
Depreciation and amortization	85	83	246	243
Total operating expenses	11,649	9,698	34,181	29,051
Income from operations	589	621	1,991	2,075
Interest expense	38	35	108	105
Income before income taxes	551	586	1,883	1,970
Provision for income taxes	261	218	881	709
Net income	$ 290	$ 368	$ 1,002	$ 1,261
Basic earnings per common share (in dollars per share)	$ 1.87	$ 2.34	$ 6.46	$ 7.98
Diluted earnings per common share (in dollars per share)	$ 1.85	$ 2.31	$ 6.39	$ 7.90
Dividends per common share (in dollars per share)	$ 0.28	$ 0.27	$ 0.83	$ 0.80

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MEDICARE PART D

9 Months Ended

Sep. 30, 2014

Insurance [Abstract]

MEDICARE PART D

MEDICARE PART D

We cover prescription drug benefits in accordance with Medicare Part D under multiple contracts with the Centers for Medicare and Medicaid Services, or CMS. The accompanying condensed consolidated balance sheets include the following amounts associated with Medicare Part D at September 30, 2014 and December 31, 2013. Amounts included below relating to the 2013 contract year for the net risk corridor payable of $35 million and the CMS subsidies receivable of $691 million at September 30, 2014 were settled in October 2014.

	September 30, 2014						December 31, 2013
	Risk Corridor Settlement			CMS Subsidies/ Discounts			Risk Corridor Settlement			CMS Subsidies/ Discounts
	(in millions)
Other current assets	$	205		$	1,517		$	45		$	743
Trade accounts payable and accrued expenses	(80		)	(43		)	(71		)	(30		)
Net current (liability) asset	125			1,474			(26		)	713

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FAIR VALUE

9 Months Ended

Sep. 30, 2014

Fair Value Disclosures [Abstract]

FAIR VALUE

FAIR VALUE

Financial Assets

The following table summarizes our fair value measurements at September 30, 2014 and December 31, 2013, respectively, for financial assets measured at fair value on a recurring basis:

	Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets (Level 1)		Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(in millions)
September 30, 2014
Cash equivalents	$	2,606	$	2,606	$	—	$	—
Debt securities:
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	852		—		852		—
Mortgage-backed securities	1,569		—		1,569		—
Tax-exempt municipal securities	3,151		—		3,138		13
Mortgage-backed securities:
Residential	18		—		18		—
Commercial	696		—		696		—
Asset-backed securities	41		—		40		1
Corporate debt securities	3,708		—		3,684		24
Total debt securities	10,035		—		9,997		38
Total invested assets	$	12,641	$	2,606	$	9,997	$	38
December 31, 2013
Cash equivalents	$	876	$	876	$	—	$	—
Debt securities:
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	584		—		584		—
Mortgage-backed securities	1,820		—		1,820		—
Tax-exempt municipal securities	2,971		—		2,958		13
Mortgage-backed securities:
Residential	22		—		22		—
Commercial	673		—		673		—
Asset-backed securities	63		—		62		1
Corporate debt securities	3,667		—		3,644		23
Total debt securities	9,800		—		9,763		37
Total invested assets	$	10,676	$	876	$	9,763	$	37

There were no material transfers between Level 1 and Level 2 during the three and nine months ended September 30, 2014 or September 30, 2013.

Our Level 3 assets had a fair value of $38 million at September 30, 2014, or 0.3% of our total invested assets. During the three and nine months ended September 30, 2014 and 2013, the changes in the fair value of the assets measured using significant unobservable inputs (Level 3) were comprised of the following:

	For the three months ended September 30,
	2014						2013
	Private Placements		Auction Rate Securities		Total		Private Placements			Auction Rate Securities		Total
	(in millions)
Beginning balance at April 1	$	24	$	13	$	37	$	23		$	13	$	36
Total gains or losses:
Realized in earnings	—		—		—		—			—		—
Unrealized in other comprehensive income	1		—		1		1			—		1
Purchases	—		—		—		—			—		—
Sales	—		—		—		—			—		—
Settlements	—		—		—		—			—		—
Balance at September 30	$	25	$	13	$	38	$	24		$	13	$	37
	For the nine months ended September 30,
	2014						2013
	Private Placements		Auction Rate Securities		Total		Private Placements			Auction Rate Securities		Total
	(in millions)
Beginning balance at January 1	$	24	$	13	$	37	$	25		$	13	$	38
Total gains or losses:
Realized in earnings	—		—		—		—			—		—
Unrealized in other comprehensive income	1		—		1		—			—		—
Purchases	—		—		—		—			—		—
Sales	—		—		—		—			—		—
Settlements	—		—		—		(1		)	—		(1		)
Balance at September 30	$	25	$	13	$	38	$	24		$	13	$	37

Financial Liabilities

Our long-term debt is recorded at carrying value in our consolidated balance sheets. The carrying value of our long-term debt outstanding, including the current portion, was $4,338 million at September 30, 2014 and $2,600 million at December 31, 2013. The fair value of our long-term debt, including the current portion, was $4,565 million at September 30, 2014 and $2,751 million at December 31, 2013. The fair value of our long-term debt is determined based on Level 2 inputs, including quoted market prices for the same or similar debt, or if no quoted market prices are available, on the current prices estimated to be available to us for debt with similar terms and remaining maturities.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

As disclosed in Note 3, the acquisitions of American Eldercare and other health and wellness companies were completed during 2014 and 2013. The values of net tangible assets acquired and the resulting goodwill and other intangible assets were recorded at fair value using Level 3 inputs. The majority of the related tangible assets acquired and liabilities assumed were recorded at their carrying values as of the respective dates of acquisition, as their carrying values approximated their fair values due to their short-term nature. The fair values of goodwill and other intangible assets acquired in these acquisitions were internally estimated primarily based on the income approach. The income approach estimates fair value based on the present value of the cash flows that the assets are expected to generate in the future. We developed internal estimates for the expected cash flows and discount rates used in the present value calculations. Other than assets acquired and liabilities assumed in these acquisitions, there were no material assets or liabilities measured at fair value on a nonrecurring basis during the three and nine months ended September 30, 2014 or 2013.

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MEDICARE PART D (Tables)

9 Months Ended

Sep. 30, 2014

Insurance [Abstract]

Balance Sheet Amounts Associated With Medicare Part D

The accompanying condensed consolidated balance sheets include the following amounts associated with Medicare Part D at September 30, 2014 and December 31, 2013. Amounts included below relating to the 2013 contract year for the net risk corridor payable of $35 million and the CMS subsidies receivable of $691 million at September 30, 2014 were settled in October 2014.

	September 30, 2014						December 31, 2013
	Risk Corridor Settlement			CMS Subsidies/ Discounts			Risk Corridor Settlement			CMS Subsidies/ Discounts
	(in millions)
Other current assets	$	205		$	1,517		$	45		$	743
Trade accounts payable and accrued expenses	(80		)	(43		)	(71		)	(30		)
Net current (liability) asset	125			1,474			(26		)	713

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SEGMENT INFORMATION

9 Months Ended

Sep. 30, 2014

Segment Reporting [Abstract]

SEGMENT INFORMATION

SEGMENT INFORMATION

We manage our business with three reportable segments: Retail, Employer Group, and Healthcare Services. In addition, the Other Businesses category includes businesses that are not individually reportable because they do not meet the quantitative thresholds required by generally accepted accounting principles. These segments are based on a combination of the type of health plan customer and adjacent businesses centered on well-being solutions for our health plans and other customers, as described below. These segment groupings are consistent with information used by our Chief Executive Officer to assess performance and allocate resources.

The Retail segment consists of Medicare and commercial fully-insured medical and specialty health insurance benefits, including dental, vision, and other supplemental health and financial protection products, marketed directly to individuals, and includes our contract with CMS to administer the Limited Income Newly Eligible Transition, or LI-NET, prescription drug plan program and contracts with various states to provide Medicaid, dual eligible, and Long-Term Support Services benefits, collectively our state-based contracts. The Employer Group segment consists of Medicare and commercial fully-insured medical and specialty health insurance benefits, including dental, vision, and voluntary benefit products, as well as administrative services only, or ASO, products and our health and wellness products primarily marketed to employer groups. The Healthcare Services segment includes services offered to our health plan members as well as to third parties including pharmacy, provider services, home based services, integrated behavioral health services and predictive modeling and informatics services. The Other Businesses category consists of our military services, primarily our TRICARE South Region contract, closed-block of long-term care insurance policies, and our Puerto Rico Medicaid contracts under which coverage was terminated effective September 30, 2013.

Our Healthcare Services intersegment revenues primarily relate to managing prescription drug coverage for members of our other segments through Humana Pharmacy Solutions®, or HPS, and includes the operations of RightSourceRx®, our mail order pharmacy business. These revenues consist of the prescription price (ingredient cost plus dispensing fee), including the portion to be settled with the member (co-share) or with the government (subsidies), plus any associated administrative fees. Services revenues related to the distribution of prescriptions by third party retail pharmacies in our networks are recognized when the claim is processed and product revenues from dispensing prescriptions from our mail order pharmacies are recorded when the prescription or product is shipped. Our pharmacy operations, which are responsible for designing pharmacy benefits, including defining member co-share responsibilities, determining formulary listings, contracting with retail pharmacies, confirming member eligibility, reviewing drug utilization, and processing claims, act as a principal in the arrangement on behalf of members in our other segments. As principal, our Healthcare Services segment reports revenues on a gross basis including co-share amounts from members collected by third party retail pharmacies at the point of service.

In addition, our Healthcare Services intersegment revenues include revenues earned by certain owned providers derived from risk-based managed care agreements with our health plans. Under these agreements, the provider receives a monthly capitated fee that varies depending on the demographics and health status of the member, for each member assigned to these owned providers by our health plans. The owned provider assumes the economic risk of funding the assigned members’ healthcare services and related administrative costs. Accordingly, our Healthcare Services segment reports provider services related revenues on a gross basis. Capitation fee revenue is recognized in the period in which the assigned members are entitled to receive healthcare services.

We present our consolidated results of operations from the perspective of the health plans. As a result, the cost of providing benefits to our members, whether provided via a third party provider or internally through a stand-alone subsidiary, is classified as benefits expense and excludes the portion of the cost for which the health plans do not bear responsibility, including member co-share amounts and government subsidies of $2.6 billion and $2.0 billion for the three months ended September 30, 2014 and 2013, respectively. For the nine months ended September 30, 2014 and 2013, these amounts were $6.8 billion and $5.2 billion respectively. In addition, depreciation and amortization expense associated with certain businesses in our Healthcare Services segment delivering benefits to our members, primarily associated with our provider services and pharmacy operations, are included with benefits expense. The amount of this expense was $27 million and $23 million for the three months ended September 30, 2014 and 2013, respectively. For the nine months ended September 30, 2014 and 2013, the amount of this expense was $79 million and $69 million, respectively.

Other than those described previously, the accounting policies of each segment are the same and are described in Note 2 to the consolidated financial statements included in our 2013 Form 10-K. Transactions between reportable segments primarily consist of sales of services rendered by our Healthcare Services segment, primarily pharmacy, provider, and behavioral health services, to our Retail and Employer Group customers. Intersegment sales and expenses are recorded at fair value and eliminated in consolidation. Members served by our segments often use the same provider networks, enabling us in some instances to obtain more favorable contract terms with providers. Our segments also share indirect costs and assets. As a result, the profitability of each segment is interdependent. We allocate most operating expenses to our segments. Assets and certain corporate income and expenses are not allocated to the segments, including the portion of investment income not supporting segment operations, interest expense on corporate debt, and certain other corporate expenses. These items are managed at a corporate level. These corporate amounts are reported separately from our reportable segments and are included with intersegment eliminations in the tables presenting segment results below.

Our segment results were as follows for the three and nine months ended September 30, 2014 and 2013, respectively:

	Retail		Employer Group		Healthcare Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Three months ended September 30, 2014
Revenues - external customers
Premiums:
Medicare Advantage	$	6,508	$	1,381	$	—	$	—	$	—		$	7,889
Medicare stand-alone PDP	804		2		—		—		—			806
Total Medicare	7,312		1,383		—		—		—			8,695
Fully-insured	926		1,335		—		—		—			2,261
Specialty	67		274		—		—		—			341
Military services	—		—		—		5		—			5
Medicaid and other	292		—		—		13		—			305
Total premiums	8,597		2,992		—		18		—			11,607
Services revenue:
Provider	—		6		302		—		—			308
ASO and other	10		84		—		108		—			202
Pharmacy	—		—		26		—		—			26
Total services revenue	10		90		328		108		—			536
Total revenues - external customers	8,607		3,082		328		126		—			12,143
Intersegment revenues
Services	—		22		3,851		—		(3,873		)	—
Products	—		—		968		—		(968		)	—
Total intersegment revenues	—		22		4,819		—		(4,841		)	—
Investment income	19		11		—		15		50			95
Total revenues	8,626		3,115		5,147		141		(4,791		)	12,238
Operating expenses:
Benefits	7,201		2,589		—		27		(151		)	9,666
Operating costs	1,063		487		4,908		96		(4,656		)	1,898
Depreciation and amortization	40		26		37		4		(22		)	85
Total operating expenses	8,304		3,102		4,945		127		(4,829		)	11,649
Income from operations	322		13		202		14		38			589
Interest expense	—		—		—		—		38			38
Income before income taxes	$	322	$	13	$	202	$	14	$	—		$	551

	Retail		Employer Group		Healthcare Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Three months ended September 30, 2013
Revenues - external customers
Premiums:
Medicare Advantage	$	5,552	$	1,193	$	—	$	—	$	—		$	6,745
Medicare stand-alone PDP	740		2		—		—		—			742
Total Medicare	6,292		1,195		—		—		—			7,487
Fully-insured	292		1,278		—		—		—			1,570
Specialty	54		273		—		—		—			327
Military services	—		—		—		6		—			6
Medicaid and other	76		—		—		232		—			308
Total premiums	6,714		2,746		—		238		—			9,698
Services revenue:
Provider	—		6		310		—		—			316
ASO and other	3		84		—		108		—			195
Pharmacy	—		—		17		—		—			17
Total services revenue	3		90		327		108		—			528
Total revenues - external customers	6,717		2,836		327		346		—			10,226
Intersegment revenues
Services	—		14		2,999		—		(3,013		)	—
Products	—		—		716		—		(716		)	—
Total intersegment revenues	—		14		3,715		—		(3,729		)	—
Investment income	19		10		—		15		49			93
Total revenues	6,736		2,860		4,042		361		(3,680		)	10,319
Operating expenses:
Benefits	5,647		2,316		—		230		(118		)	8,075
Operating costs	718		443		3,856		103		(3,580		)	1,540
Depreciation and amortization	33		25		37		5		(17		)	83
Total operating expenses	6,398		2,784		3,893		338		(3,715		)	9,698
Income from operations	338		76		149		23		35			621
Interest expense	—		—		—		—		35			35
Income before income taxes	$	338	$	76	$	149	$	23	$	—		$	586

	Retail		Employer Group		Healthcare Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Nine months ended September 30, 2014
Revenues - external customers
Premiums:
Medicare Advantage	$	19,443	$	4,131	$	—	$	—	$	—		$	23,574
Medicare stand-alone PDP	2,606		6		—		—		—			2,612
Total Medicare	22,049		4,137		—		—		—			26,186
Fully-insured	2,363		3,985		—		—		—			6,348
Specialty	192		824		—		—		—			1,016
Military services	—		—		—		15		—			15
Medicaid and other	667		—		—		42		—			709
Total premiums	25,271		8,946		—		57		—			34,274
Services revenue:
Provider	—		17		899		—		—			916
ASO and other	37		246		—		349		—			632
Pharmacy	—		—		72		—		—			72
Total services revenue	37		263		971		349		—			1,620
Total revenues - external customers	25,308		9,209		971		406		—			35,894
Intersegment revenues
Services	—		57		11,002		—		(11,059		)	—
Products	—		—		2,752		—		(2,752		)	—
Total intersegment revenues	—		57		13,754		—		(13,811		)	—
Investment income	56		32		—		45		145			278
Total revenues	25,364		9,298		14,725		451		(13,666		)	36,172
Operating expenses:
Benefits	21,371		7,417		—		82		(453		)	28,417
Operating costs	2,968		1,478		14,024		301		(13,253		)	5,518
Depreciation and amortization	112		75		108		12		(61		)	246
Total operating expenses	24,451		8,970		14,132		395		(13,767		)	34,181
Income from operations	913		328		593		56		101			1,991
Interest expense	—		—		—		—		108			108
Income (loss) before income taxes	$	913	$	328	$	593	$	56	$	(7	)	$	1,883

	Retail		Employer Group		Healthcare Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Nine months ended September 30, 2013
Revenues - external customers
Premiums:
Medicare Advantage	$	16,860	$	3,543	$	—	$	—	$	—		$	20,403
Medicare stand-alone PDP	2,286		6		—		—		—			2,292
Total Medicare	19,146		3,549		—		—		—			22,695
Fully-insured	856		3,819		—		—		—			4,675
Specialty	155		823		—		—		—			978
Military services	—		—		—		22		—			22
Medicaid and other	227		—		—		670		—			897
Total premiums	20,384		8,191		—		692		—			29,267
Services revenue:
Provider	—		15		928		—		—			943
ASO and other	7		250		—		342		—			599
Pharmacy	—		—		39		—		—			39
Total services revenue	7		265		967		342		—			1,581
Total revenues - external customers	20,391		8,456		967		1,034		—			30,848
Intersegment revenues
Services	—		37		8,706		—		(8,743		)	—
Products	—		—		2,050		—		(2,050		)	—
Total intersegment revenues	—		37		10,756		—		(10,793		)	—
Investment income	55		31		—		45		147			278
Total revenues	20,446		8,524		11,723		1,079		(10,646		)	31,126
Operating expenses:
Benefits	17,272		6,728		—		668		(307		)	24,361
Operating costs	1,971		1,299		11,223		347		(10,393		)	4,447
Depreciation and amortization	97		75		109		13		(51		)	243
Total operating expenses	19,340		8,102		11,332		1,028		(10,751		)	29,051
Income from operations	1,106		422		391		51		105			2,075
Interest expense	—		—		—		—		105			105
Income before income taxes	$	1,106	$	422	$	391	$	51	$	—		$	1,970

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STOCKHOLDERS' EQUITY

9 Months Ended

Sep. 30, 2014

Equity [Abstract]

STOCKHOLDERS' EQUITY

STOCKHOLDERS’ EQUITY

Dividends

The following table provides details of dividend payments in 2013 and 2014 under our Board approved quarterly cash dividend policy:

Record Date	Payment Date	Amount per Share		Total Amount
				(in millions)
2013 payments
12/31/2012	1/25/2013	$	0.26	$	42
3/28/2013	4/26/2013	$	0.26	$	41
6/28/2013	7/26/2013	$	0.27	$	42
9/30/2013	10/25/2013	$	0.27	$	42
2014 payments
12/31/2013	1/31/2014	$	0.27	$	42
3/31/2014	4/25/2014	$	0.27	$	42
6/30/2014	7/25/2014	$	0.28	$	43
9/30/2014	10/31/2014	$	0.28	$	43

In October 2014, the Board declared a cash dividend of $0.28 per share payable on January 30, 2015 to stockholders of record on December 31, 2014. Declaration and payment of future quarterly dividends is at the discretion of the Board and may be adjusted as business needs or market conditions change.

Stock Repurchases

In September 2014, the Board of Directors replaced a previous share repurchase authorization of up to $1 billion (of which $816 million remained unused) with a new authorization for repurchases of up to $2 billion of our common shares exclusive of shares repurchased in connection with employee stock plans, expiring on December 31, 2016. Under the new share repurchase authorization, shares may be purchased from time to time at prevailing prices in the open market, by block purchases, or in privately-negotiated transactions, subject to certain regulatory restrictions on volume, pricing, and timing. During the nine months ended September 30, 2014, we repurchased 1.60 million shares in open market transactions for $195 million at an average price of $121.68 under previous share repurchase authorizations and we repurchased 0.27 million shares in open market transactions for $35 million at an average price of $128.34 under the current authorization. During the nine months ended September 30, 2013, we repurchased 3.78 million shares in open market transactions for $301 million at an average price of $79.79 under previous share repurchase authorizations. During the period commencing on October 1, 2014 and ending on November 6, 2014, we repurchased 0.77 million shares in open market transactions for $100 million at an average price of $130.50 under the current authorization. As of November 7, 2014, the remaining authorized amount under the new authorization totaled $1.87 billion.

In connection with employee stock plans, we acquired 0.4 million common shares for $40 million and 0.3 million common shares for $24 million during the nine months ended September 30, 2014 and 2013, respectively.

Accumulated Other Comprehensive Income

Accumulated other comprehensive income included net unrealized gains on our investment securities of $286 million at September 30, 2014 and $158 million at December 31, 2013. In addition, accumulated other comprehensive income included $53 million at September 30, 2014 for an additional liability that would exist on our closed block of long-term care insurance policies if unrealized gains on the sale of the investments backing such products had been realized and the proceeds reinvested at then current yields. There was no such additional liability at December 31, 2013. Refer to Note 17 to the consolidated financial statements in our 2013 Form 10-K for further discussion of our long-term care insurance policies.

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GOODWILL AND OTHER INTANGIBLE ASSETS

9 Months Ended

Sep. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND OTHER INTANGIBLE ASSETS

GOODWILL AND OTHER INTANGIBLE ASSETS

The carrying amount of goodwill for our reportable segments has been retrospectively adjusted to conform to the 2014 presentation as discussed in Note 1. Changes in the carrying amount of goodwill for our reportable segments for the nine months ended September 30, 2014 were as follows:

	Retail		Employer Group		Healthcare Services			Other Businesses		Total
	(in millions)
Balance at January 1, 2014	$	1,007	$	363	$	2,271		$	92	$	3,733
Acquisitions	—		—		3			—		3
Dispositions	—		—		(40		)	—		(40		)
Subsequent payments/adjustments	—		—		(1		)	—		(1		)
Balance at September 30, 2014	$	1,007	$	363	$	2,233		$	92	$	3,695

The following table presents details of our other intangible assets included in other long-term assets in the accompanying condensed consolidated balance sheets at September 30, 2014 and December 31, 2013:

		September 30, 2014						December 31, 2013
	Weighted Average Life	Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
	(in millions)
Other intangible assets:
Customer contracts/ relationships	9.8 yrs	$	764	$	349	$	415	$	792	$	310	$	482
Trade names and technology	13.2 yrs	198		54		144		200		40		160
Provider contracts	15.1 yrs	51		19		32		51		23		28
Noncompetes and other	6.6 yrs	50		34		16		52		29		23
Total other intangible assets	10.5 yrs	$	1,063	$	456	$	607	$	1,095	$	402	$	693

Amortization expense for other intangible assets was approximately $28 million for the three months ended September 30, 2014 and 2013. For the nine months ended September 30, 2014 and 2013, amortization expense for other intangible assets was approximately $85 million and $84 million, respectively. The following table presents our estimate of amortization expense for 2014 and each of the five next succeeding years:

	(in millions)
For the years ending December 31,:
2014	$	112
2015	101
2016	94
2017	86
2018	79
2019	67

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EARNINGS PER COMMON SHARE COMPUTATION

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

EARNINGS PER COMMON SHARE COMPUTATION

EARNINGS PER COMMON SHARE COMPUTATION

Detail supporting the computation of basic and diluted earnings per common share was as follows for the three and nine months ended September 30, 2014 and 2013:

	Three months ended September 30,				Nine months ended September 30,
	2014		2013		2014		2013
	(dollars in millions, except per common share results; number of shares in thousands)
Net income available for common stockholders	$	290	$	368	$	1,002	$	1,261
Weighted average outstanding shares of common stock used to compute basic earnings per common share	154,502		157,187		155,006		158,026
Dilutive effect of:
Employee stock options	203		289		233		341
Restricted stock	1,525		1,431		1,402		1,244
Shares used to compute diluted earnings per common share	156,230		158,907		156,641		159,611
Basic earnings per common share	$	1.87	$	2.34	$	6.46	$	7.98
Diluted earnings per common share	$	1.85	$	2.31	$	6.39	$	7.90
Number of antidilutive stock options and restricted stock excluded from computation	43		202		420		910

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INCOME TAXES

9 Months Ended

Sep. 30, 2014

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

The effective income tax rate was 47.5% for the three months ended September 30, 2014, compared to 37.2% for the three months ended September 30, 2013. For the nine months ended September 30, 2014 the effective tax rate was 46.8%, compared to 36.0% for the nine months ended September 30, 2013. The non-deductible nature of the health insurance industry fee levied on the industry beginning in 2014 as mandated by the Health Care Reform Law increased our effective tax rate by approximately 10 percentage points for the nine months ended September 30, 2014. In addition, the effective tax for the three and nine months ended September 30, 2013 includes the beneficial effect of a change in our estimated tax liability associated with limitations on the deductibility of annual compensation in excess of $500,000 per employee as mandated by the Health Care Reform Law.

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Schedule of Investment Securities Classified as Current and Long-Term (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Investment [Line Items]
Amortized Cost	$ 9,583	$ 9,550
Gross Unrealized Gains	503	377
Gross Unrealized Losses	(51)	(127)
Total debt securities, Fair Value	10,035	9,800
Debt Securities | Tax-exempt municipal securities
Investment [Line Items]
Amortized Cost	3,006	2,911
Gross Unrealized Gains	148	93
Gross Unrealized Losses	(3)	(33)
Total debt securities, Fair Value	3,151	2,971
Debt Securities | Residential Mortgage-Backed Securities
Investment [Line Items]
Amortized Cost	18	22
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Total debt securities, Fair Value	18	22
Debt Securities | Commercial Mortgage-Backed Securities
Investment [Line Items]
Amortized Cost	698	662
Gross Unrealized Gains	15	20
Gross Unrealized Losses	(17)	(9)
Total debt securities, Fair Value	696	673
Debt Securities | Asset-backed Securities
Investment [Line Items]
Amortized Cost	40	63
Gross Unrealized Gains	1	1
Gross Unrealized Losses	0	(1)
Total debt securities, Fair Value	41	63
Debt Securities | Corporate Debt Securities
Investment [Line Items]
Amortized Cost	3,431	3,474
Gross Unrealized Gains	289	223
Gross Unrealized Losses	(12)	(30)
Total debt securities, Fair Value	3,708	3,667
Debt Securities | U.S. Treasury And Other U.S. Government Corporations And Agencies | U.S. Treasury And Agency Obligations
Investment [Line Items]
Amortized Cost	846	584
Gross Unrealized Gains	8	6
Gross Unrealized Losses	(2)	(6)
Total debt securities, Fair Value	852	584
Debt Securities | U.S. Treasury And Other U.S. Government Corporations And Agencies | Mortgage-Backed Securities
Investment [Line Items]
Amortized Cost	1,544	1,834
Gross Unrealized Gains	42	34
Gross Unrealized Losses	(17)	(48)
Total debt securities, Fair Value	$ 1,569	$ 1,820

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DEBT - Credit Agreement (Details) (USD $)			9 Months Ended		9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Credit Agreement Line of Credit Revolving Credit Facility	Sep. 30, 2014 Credit Agreement Line of Credit Letter of Credit	Sep. 30, 2014 Credit Agreement London Interbank Offered Rate (LIBOR) Line of Credit Revolving Credit Facility	Sep. 30, 2014 Credit Agreement Minimum London Interbank Offered Rate (LIBOR) Line of Credit Revolving Credit Facility	Sep. 30, 2014 Credit Agreement Maximum London Interbank Offered Rate (LIBOR) Line of Credit Revolving Credit Facility	Nov. 06, 2014 Subsequent Event Commercial Paper	Oct. 31, 2014 Subsequent Event Commercial Paper
Line of Credit Facility [Line Items]
Term			5 years
Maximum borrowing capacity			$ 1,000,000,000						$ 1,000,000,000
Interest rate spread					1.10%	0.90%	1.50%
Facility fee (percentage)					0.15%	0.10%	0.25%
Minimum level of net worth required			7,600,000,000
Actual net worth	10,125,000,000	9,316,000,000	10,100,000,000
Required maximum leverage ratio			3.0
Actual leverage ratio			1.8
Uncommitted incremental loan facility			250,000,000
Line of credit, outstanding borrowings			0
Letters of credit outstanding				5,000,000
Remaining borrowing capacity			995,000,000
Amount outstanding								$ 150,000,000

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INVESTMENT SECURITIES (Tables)

9 Months Ended

Sep. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Schedule of Investment Securities Classified as Current and Long-Term

Investment securities classified as current and long-term were as follows at September 30, 2014 and December 31, 2013, respectively:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(in millions)
September 30, 2014
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	$	846	$	8	$	(2	)	$	852
Mortgage-backed securities	1,544		42		(17		)	1,569
Tax-exempt municipal securities	3,006		148		(3		)	3,151
Mortgage-backed securities:
Residential	18		—		—			18
Commercial	698		15		(17		)	696
Asset-backed securities	40		1		—			41
Corporate debt securities	3,431		289		(12		)	3,708
Total debt securities	$	9,583	$	503	$	(51	)	$	10,035
December 31, 2013
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	$	584	$	6	$	(6	)	$	584
Mortgage-backed securities	1,834		34		(48		)	1,820
Tax-exempt municipal securities	2,911		93		(33		)	2,971
Mortgage-backed securities:
Residential	22		—		—			22
Commercial	662		20		(9		)	673
Asset-backed securities	63		1		(1		)	63
Corporate debt securities	3,474		223		(30		)	3,667
Total debt securities	$	9,550	$	377	$	(127	)	$	9,800

Schedule of Gross Unrealized Losses and Fair Value of Securities

Gross unrealized losses and fair values aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position were as follows at September 30, 2014 and December 31, 2013, respectively:

	Less than 12 months					12 months or more					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
	(in millions)
September 30, 2014
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	$	59	$	—		$	86	$	(2	)	$	145	$	(2	)
Mortgage-backed securities	147		(1		)	475		(16		)	622		(17		)
Tax-exempt municipal securities	136		—			136		(3		)	272		(3		)
Mortgage-backed securities:
Residential	1		—			4		—			5		—
Commercial	145		(3		)	206		(14		)	351		(17		)
Asset-backed securities	—		—			16		—			16		—
Corporate debt securities	209		(3		)	141		(9		)	350		(12		)
Total debt securities	$	697	$	(7	)	$	1,064	$	(44	)	$	1,761	$	(51	)
December 31, 2013
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	$	231	$	(6	)	$	5	$	—		$	236	$	(6	)
Mortgage-backed securities	1,076		(47		)	21		(1		)	1,097		(48		)
Tax-exempt municipal securities	693		(28		)	57		(5		)	750		(33		)
Mortgage-backed securities:
Residential	6		—			1		—			7		—
Commercial	270		(8		)	40		(1		)	310		(9		)
Asset-backed securities	35		(1		)	—		—			35		(1		)
Corporate debt securities	594		(28		)	17		(2		)	611		(30		)
Total debt securities	$	2,905	$	(118	)	$	141	$	(9	)	$	3,046	$	(127	)

Schedule of Realized Gains (Losses) Related to Investment Securities Included Within Investment Income

The detail of realized gains (losses) related to investment securities and included within investment income was as follows for the three and nine months ended September 30, 2014 and 2013:

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
	(in millions)
Gross realized gains	$	7		$	7		$	14		$	24
Gross realized losses	(1		)	(3		)	(5		)	(10		)
Net realized capital gains	$	6		$	4		$	9		$	14

Schedule of Contractual Maturity of Debt Securities Available for Sale

The contractual maturities of debt securities available for sale at September 30, 2014, regardless of their balance sheet classification, are shown below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Amortized Cost		Fair Value
	(in millions)
Due within one year	$	1,030	$	1,036
Due after one year through five years	2,119		2,234
Due after five years through ten years	2,184		2,307
Due after ten years	1,950		2,134
Mortgage and asset-backed securities	2,300		2,324
Total debt securities	$	9,583	$	10,035

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STOCKHOLDERS' EQUITY (Tables)

9 Months Ended

Sep. 30, 2014

Equity [Abstract]

Schedule of Details of Dividend Payments

The following table provides details of dividend payments in 2013 and 2014 under our Board approved quarterly cash dividend policy:

Record Date	Payment Date	Amount per Share		Total Amount
				(in millions)
2013 payments
12/31/2012	1/25/2013	$	0.26	$	42
3/28/2013	4/26/2013	$	0.26	$	41
6/28/2013	7/26/2013	$	0.27	$	42
9/30/2013	10/25/2013	$	0.27	$	42
2014 payments
12/31/2013	1/31/2014	$	0.27	$	42
3/31/2014	4/25/2014	$	0.27	$	42
6/30/2014	7/25/2014	$	0.28	$	43
9/30/2014	10/31/2014	$	0.28	$	43

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Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Tax Disclosure [Abstract]
Effective Income Tax Rate	47.50%	37.20%	46.80%	36.00%
Percentage of Increase in effective tax rate			10.00%
Limitations on deductibility of excess annual employee compensation as mandated by health insurance reforms				$ 500,000

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Balance Sheet Amounts Associated With Medicare Part D (Detail) (USD $) In Millions, unless otherwise specified							1 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Risk Corridor Settlement	Dec. 31, 2013 Risk Corridor Settlement	Sep. 30, 2014 CMS Subsidies/ Discounts	Dec. 31, 2013 CMS Subsidies/ Discounts	Oct. 31, 2014 Subsequent Event Risk Corridor Settlement	Oct. 31, 2014 Subsequent Event CMS Subsidies/ Discounts
Segment Reporting Information [Line Items]
Payable settled							$ 35
Receivable settled								691
Other current assets	3,839	2,122	205	45	1,517	743
Trade accounts payable and accrued expenses	(2,068)	(1,821)	(80)	(71)	(43)	(30)
Net current asset (liability)			$ 125	$ (26)	$ 1,474	$ 713

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Condensed Consolidated Statements Of Comprehensive Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net income	$ 290	$ 368	$ 1,002	$ 1,261
Other comprehensive income (loss):
Change in gross unrealized investment gains/losses	(36)	(16)	128	(286)
Effect of income taxes	13	6	(47)	105
Total change in unrealized investment gains/losses, net of tax	(23)	(10)	81	(181)
Reclassification adjustment for net realized gains included in investment income	(6)	(4)	(9)	(14)
Effect of income taxes	2	1	3	5
Total reclassification adjustment, net of tax	(4)	(3)	(6)	(9)
Other comprehensive income (loss), net of tax	(27)	(13)	75	(190)
Comprehensive income	$ 263	$ 355	$ 1,077	$ 1,071

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INVESTMENT SECURITIES

9 Months Ended

Sep. 30, 2014

Investments, Debt and Equity Securities [Abstract]

INVESTMENT SECURITIES

INVESTMENT SECURITIES

Investment securities classified as current and long-term were as follows at September 30, 2014 and December 31, 2013, respectively:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(in millions)
September 30, 2014
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	$	846	$	8	$	(2	)	$	852
Mortgage-backed securities	1,544		42		(17		)	1,569
Tax-exempt municipal securities	3,006		148		(3		)	3,151
Mortgage-backed securities:
Residential	18		—		—			18
Commercial	698		15		(17		)	696
Asset-backed securities	40		1		—			41
Corporate debt securities	3,431		289		(12		)	3,708
Total debt securities	$	9,583	$	503	$	(51	)	$	10,035
December 31, 2013
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	$	584	$	6	$	(6	)	$	584
Mortgage-backed securities	1,834		34		(48		)	1,820
Tax-exempt municipal securities	2,911		93		(33		)	2,971
Mortgage-backed securities:
Residential	22		—		—			22
Commercial	662		20		(9		)	673
Asset-backed securities	63		1		(1		)	63
Corporate debt securities	3,474		223		(30		)	3,667
Total debt securities	$	9,550	$	377	$	(127	)	$	9,800

Gross unrealized losses and fair values aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position were as follows at September 30, 2014 and December 31, 2013, respectively:

	Less than 12 months					12 months or more					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
	(in millions)
September 30, 2014
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	$	59	$	—		$	86	$	(2	)	$	145	$	(2	)
Mortgage-backed securities	147		(1		)	475		(16		)	622		(17		)
Tax-exempt municipal securities	136		—			136		(3		)	272		(3		)
Mortgage-backed securities:
Residential	1		—			4		—			5		—
Commercial	145		(3		)	206		(14		)	351		(17		)
Asset-backed securities	—		—			16		—			16		—
Corporate debt securities	209		(3		)	141		(9		)	350		(12		)
Total debt securities	$	697	$	(7	)	$	1,064	$	(44	)	$	1,761	$	(51	)
December 31, 2013
U.S. Treasury and other U.S. government corporations and agencies:
U.S. Treasury and agency obligations	$	231	$	(6	)	$	5	$	—		$	236	$	(6	)
Mortgage-backed securities	1,076		(47		)	21		(1		)	1,097		(48		)
Tax-exempt municipal securities	693		(28		)	57		(5		)	750		(33		)
Mortgage-backed securities:
Residential	6		—			1		—			7		—
Commercial	270		(8		)	40		(1		)	310		(9		)
Asset-backed securities	35		(1		)	—		—			35		(1		)
Corporate debt securities	594		(28		)	17		(2		)	611		(30		)
Total debt securities	$	2,905	$	(118	)	$	141	$	(9	)	$	3,046	$	(127	)

Approximately 96% of our debt securities were investment-grade quality, with a weighted average credit rating of AA- by S&P at September 30, 2014. Most of the debt securities that were below investment-grade were rated BB, the higher end of the below investment-grade rating scale. At September 30, 2014, 5% of our tax-exempt municipal securities were pre-refunded, generally with U.S. government and agency securities. Tax-exempt municipal securities that were not pre-refunded were diversified among general obligation bonds of U.S. states and local municipalities as well as special revenue bonds. General obligation bonds, which are backed by the taxing power and full faith of the issuer, accounted for 39% of the tax-exempt municipals that were not pre-refunded in the portfolio. Special revenue bonds, issued by a municipality to finance a specific public works project such as utilities, water and sewer, transportation, or education, and supported by the revenues of that project, accounted for the remaining 61% of these municipals. Our general obligation bonds are diversified across the United States with no individual state exceeding 11%. In addition, 16% of our tax-exempt securities were insured by bond insurers and had an equivalent weighted average S&P credit rating of AA exclusive of the bond insurers’ guarantee. Our investment policy limits investments in a single issuer and requires diversification among various asset types.

The recoverability of our non-agency residential and commercial mortgage-backed securities is supported by factors such as seniority, underlying collateral characteristics and credit enhancements. These residential and commercial mortgage-backed securities at September 30, 2014 primarily were composed of senior tranches having high credit support, with over 99% of the collateral consisting of prime loans. The weighted average credit rating of all commercial mortgage-backed securities was AA at September 30, 2014.

The percentage of corporate securities associated with the financial services industry was 20% at September 30, 2014 and 23% at December 31, 2013.

All issuers of securities we own that were trading at an unrealized loss at September 30, 2014 remain current on all contractual payments. After taking into account these and other factors previously described, we believe these unrealized losses primarily were caused by an increase in market interest rates since the time the securities were purchased. At September 30, 2014, we did not intend to sell the securities with an unrealized loss position in accumulated other comprehensive income, and it is not likely that we will be required to sell these securities before recovery of their amortized cost basis. As a result, we believe that the securities with an unrealized loss were not other-than-temporarily impaired at September 30, 2014.

The detail of realized gains (losses) related to investment securities and included within investment income was as follows for the three and nine months ended September 30, 2014 and 2013:

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
	(in millions)
Gross realized gains	$	7		$	7		$	14		$	24
Gross realized losses	(1		)	(3		)	(5		)	(10		)
Net realized capital gains	$	6		$	4		$	9		$	14

There were no material other-than-temporary impairments for the three and nine months ended September 30, 2014 or 2013.

The contractual maturities of debt securities available for sale at September 30, 2014, regardless of their balance sheet classification, are shown below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Amortized Cost		Fair Value
	(in millions)
Due within one year	$	1,030	$	1,036
Due after one year through five years	2,119		2,234
Due after five years through ten years	2,184		2,307
Due after ten years	1,950		2,134
Mortgage and asset-backed securities	2,300		2,324
Total debt securities	$	9,583	$	10,035

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DEBT (Tables)

9 Months Ended

Sep. 30, 2014

Debt Disclosure [Abstract]

Schedule of carrying value of long-term debt outstanding

The carrying value of long-term debt outstanding, including the current portion, was as follows at September 30, 2014 and December 31, 2013:

	September 30, 2014		December 31, 2013
	(in millions)
Senior notes:
$500 million, 6.45% due June 1, 2016	$	512	$	517
$500 million, 7.20% due June 15, 2018	505		505
$300 million, 6.30% due August 1, 2018	312		314
$400 million, 2.625% due October 1, 2019	400		—
$600 million, 3.15% due December 1, 2022	598		598
$600 million, 3.85% due October 1, 2024	599		—
$250 million, 8.15% due June 15, 2038	266		266
$400 million, 4.625% due December 1, 2042	400		400
$750 million, 4.95% due October 1, 2044	746		—
Total debt	$	4,338	$	2,600
Less current portion of long-term debt	512		—
Total long-term debt	$	3,826	$	2,600

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Fair Value - Additional Information (Detail) (USD $)	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
Fair Value Disclosures [Abstract]
Transfers between Level 1 and Level 2	$ 0			$ 0
Level 3 assets fair value	38,000,000	37,000,000	37,000,000	37,000,000	36,000,000	38,000,000
Upper limit percentage of Level 3 assets to total invested assets	0.30%
Long-term debt, carrying value	3,826,000,000		2,600,000,000
Carrying value of long-term debt	4,338,000,000		2,600,000,000
Long-term debt, fair value	$ 4,565,000,000		$ 2,751,000,000

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BASIS OF PRESENTATION (Tables)

9 Months Ended

Sep. 30, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Risk Adjustment, Risk Corridor, and Reinsurance Recoverable Settlements

The accompanying condensed consolidated balance sheets include the following amounts associated with the 3Rs at September 30, 2014. No such amounts were recorded in our condensed consolidated balance sheet at December 31, 2013 as the programs were not effective until January 1, 2014.

	September 30, 2014
	Risk Adjustment/Risk Corridor Settlement			Reinsurance Contribution			Reinsurance Recoverables
	(in millions)
Current assets	$	134		$	—		$	375
Trade accounts payable and accrued expenses	(53		)	(102		)	—
Net current asset (liability)	$	81		$	(102	)	$	375