10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

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

       1934

For the quarterly period ended June 30, 2011

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:  1-16095

   Aetna Inc.

         (Exact name of registrant as specified in its charter)

Pennsylvania (State or other jurisdiction of incorporation or organization)	23-2229683 (I.R.S. Employer Identification No.)
151 Farmington Avenue, Hartford, CT (Address of principal executive offices)	06156 (Zip Code)
Registrant’s telephone number, including area code:	(860) 273-0123

Former name, former address and former fiscal year, if changed since last report:          N/A

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities

Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such

reports), and (2) has been subject to such filing requirements for the past 90 days.                                                 þ Yes  ¨  No

Indicate by check mark whether the registrant has submitted electronically 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 (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

                                                                                                þ Yes  ¨  No

Indicate by check mark 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.

Large accelerated filer  þ	Accelerated filer                  ¨
Non-accelerated filer ¨(Do not check if a smaller reporting company)	Smaller reporting company ¨

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

There were 372.9 million shares of the registrant's voting common stock with a par value of $.01 per share outstanding at June 30, 2011.

Aetna Inc.

Form 10-Q

For the Quarterly Period Ended June 30, 2011

Unless the context otherwise requires, references to the terms “we,” “our” or “us” used throughout this Quarterly Report on Form 10-Q (except the Report of Independent Registered Public Accounting Firm on page 28), refer to Aetna Inc. (a Pennsylvania corporation) (“Aetna”) and its subsidiaries (collectively, the “Company”).

 Table of Contents Page

Part I	Financial Information
Item 1.	Financial Statements	1
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	29
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	42
Item 4.	Controls and Procedures	42
Part II	Other Information
Item 1.	Legal Proceedings	43
Item 1A.	Risk Factors	43
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	43
Item 6.	Exhibits	44
Signatures		45
Index to Exhibits		46

Part I Financial Information

Item 1. Financial Statements

Consolidated Statements of Income

(Unaudited)

	For the Three Months				For the Six Months
	Ended June 30,				Ended June 30,
(Millions, except per common share data)	2011		2010		2011		2010
Revenue:
Health care premiums	$	6,733.4	$	6,915.2	$	13,484.0	$	13,810.3
Other premiums		451.8		460.5		897.1		935.2
Fees and other revenue (1)		896.5		873.0		1,796.1		1,772.8
Net investment income		241.3		253.7		493.9		528.9
Net realized capital gains		21.4		43.4		61.1		120.1
Total revenue		8,344.4		8,545.8		16,732.2		17,167.3
Benefits and expenses:
Health care costs (2)		5,366.8		5,658.6		10,714.8		11,349.6
Current and future benefits		477.7		480.7		963.2		1,007.7
Operating expenses:
Selling expenses		267.2		302.5		557.9		624.0
General and administrative expenses		1,324.5		1,255.6		2,597.3		2,451.3
Total operating expenses		1,591.7		1,558.1		3,155.2		3,075.3
Interest expense		61.5		60.7		127.6		121.6
Amortization of other acquired intangible assets		25.6		24.2		51.9		48.6
Total benefits and expenses		7,523.3		7,782.3		15,012.7		15,602.8
Income before income taxes		821.1		763.5		1,719.5		1,564.5
Income taxes:
Current		226.7		238.8		564.0		454.9
Deferred		57.7		33.7		32.8		56.0
Total income taxes		284.4		272.5		596.8		510.9
Net income	$	536.7	$	491.0	$	1,122.7	$	1,053.6
Earnings per common share:
Basic	$	1.42	$	1.16	$	2.94	$	2.47
Diluted	$	1.39	$	1.14	$	2.88	$	2.42

(1)

Fees and other revenue include administrative services contract member co-payments and plan sponsor reimbursements related to our mail order and specialty pharmacy operations of $14.4 million and $30.0 million (net of pharmaceutical and processing costs of $311.6 million and $620.9 million) for the three and six months ended June 30, 2011, respectively, and $17.8 million and $38.2 million (net of pharmaceutical and processing costs of $349.1 million and $702.7 million) for the three and six months ended June 30, 2010, respectively.

(2)

Health care costs have been reduced by Insured member co-payments related to our mail order and specialty pharmacy operations of $32.5 million and $69.6 million for the three and six months ended June 30, 2011, respectively, and $37.5 million and $77.5 million for the three and six months ended June 30, 2010, respectively.

Refer to accompanying Condensed Notes to Consolidated Financial Statements (Unaudited).

Page 1

Consolidated Balance Sheets

	(Unaudited)
	At June 30,			At December 31,
(Millions)	2011			2010
Assets:
Current assets:
Cash and cash equivalents	$	910.5		$	1,867.6
Investments		2,077.3			2,169.7
Premiums receivable, net		918.2			661.9
Other receivables, net		811.8			692.6
Accrued investment income		204.6			203.4
Collateral received under securities loan agreements		38.1			210.6
Income taxes receivable		79.3			210.1
Deferred income taxes		349.4			327.0
Other current assets		686.5			651.3
Total current assets		6,075.7			6,994.2
Long-term investments		17,968.9			17,546.3
Reinsurance recoverables		943.2			960.1
Goodwill		5,983.0			5,146.4
Other acquired intangible assets, net		802.3			495.5
Property and equipment, net		535.4			529.3
Deferred income taxes		-			29.9
Other long-term assets		724.3			742.4
Separate Accounts assets		5,185.4			5,295.3
Total assets	$	38,218.2		$	37,739.4
Liabilities and shareholders' equity:
Current liabilities:
Health care costs payable	$	2,570.7		$	2,630.9
Future policy benefits		712.0			728.4
Unpaid claims		582.9			593.3
Unearned premiums		368.2			318.7
Policyholders' funds		1,072.7			918.1
Collateral payable under securities loan agreements		38.1			210.8
Short-term debt		549.9			-
Current portion of long-term debt		-			899.9
Accrued expenses and other current liabilities		2,428.9			2,436.8
Total current liabilities		8,323.4			8,736.9
Future policy benefits		6,160.5			6,276.4
Unpaid claims		1,508.7			1,514.3
Policyholders' funds		1,313.0			1,316.6
Long-term debt, less current portion		3,976.5			3,482.6
Deferred income taxes		155.3			-
Other long-term liabilities		1,171.9			1,226.5
Separate Accounts liabilities		5,185.4			5,295.3
Total liabilities		27,794.7			27,848.6
Commitments and contingencies (Note 14)
Shareholders' equity:
Common stock ($.01 par value; 2.6 billion shares authorized and 372.9 million shares issued
and outstanding in 2011; 2.7 billion shares authorized and 384.4 million shares issued and
outstanding in 2010) and additional paid-in capital		841.0			651.5
Retained earnings		10,676.0			10,401.9
Accumulated other comprehensive loss		(1,093.5	)		(1,162.6	)
Total shareholders' equity		10,423.5			9,890.8
Total liabilities and shareholders' equity	$	38,218.2		$	37,739.4

Refer to accompanying Condensed Notes to Consolidated Financial Statements (Unaudited).

Page 2

Consolidated Statements of Shareholders’ Equity

(Unaudited)

				Common
	Number of			Stock and						Accumulated
	Common			Additional						Other			Total
	Shares			Paid-in			Retained			Comprehensive			Shareholders'			Comprehensive
(Millions)	Outstanding			Capital			Earnings			Loss			Equity			Income
Six Months Ended June 30, 2011
Balance at December 31, 2010		384.4		$	651.5		$	10,401.9		$	(1,162.6	)	$	9,890.8
Comprehensive income:
Net income		-			-			1,122.7			-			1,122.7		$	1,122.7
Other comprehensive income (Note 8):
Net unrealized gains on securities		-			-			-			52.2			52.2
Net foreign currency and derivative losses		-			-			-			(2.3	)		(2.3	)
Pension and OPEB plans		-			-			-			19.2			19.2
Other comprehensive income		-			-			-			69.1			69.1			69.1
Total comprehensive income (Note 8):																$	1,191.8
Common shares issued for benefit plans,
including tax benefits		6.4			189.7			-			-			189.7
Repurchases of common shares		(17.9	)		(.2	)		(734.8	)		-			(735.0	)
Dividend declared		-			-			(113.8	)		-			(113.8	)
Balance at June 30, 2011		372.9		$	841.0		$	10,676.0		$	(1,093.5	)	$	10,423.5
Six Months Ended June 30, 2010
Balance at December 31, 2009		430.8		$	470.1		$	10,256.7		$	(1,223.0	)	$	9,503.8
Comprehensive income:
Net income		-			-			1,053.6			-			1,053.6		$	1,053.6
Other comprehensive income (Note 8):
Net unrealized gains on securities		-			-			-			165.7			165.7
Net foreign currency and derivative losses		-			-			-			(33.2	)		(33.2	)
Pension and OPEB plans		-			-			-			64.9			64.9
Other comprehensive income		-			-			-			197.4			197.4			197.4
Total comprehensive income																$	1,251.0
Common shares issued for benefit plans,
including tax benefits		1.7			72.5			-			-			72.5
Repurchases of common shares		(15.1	)		(.2	)		(480.8	)		-			(481.0	)
Balance at June 30, 2010		417.4		$	542.4		$	10,829.5		$	(1,025.6	)	$	10,346.3

Refer to accompanying Condensed Notes to Consolidated Financial Statements (Unaudited).

Page 3

   Consolidated Statements of Cash Flows

(Unaudited)

	Six Months Ended
	June 30,
(Millions)	2011			2010
Cash flows from operating activities:
Net income	$	1,122.7		$	1,053.6
Adjustments to reconcile net income to net cash provided by operating activities:
Net realized capital gains		(61.1	)		(120.1	)
Depreciation and amortization		214.9			206.3
Equity in earnings of affiliates, net		(24.5	)		(9.7	)
Stock-based compensation expense		74.7			57.3
Accretion of net investment discount		(2.6	)		(14.4	)
Changes in assets and liabilities:
Accrued investment income		(1.2	)		(3.3	)
Premiums due and other receivables		(313.0	)		(219.5	)
Income taxes		168.7			56.9
Other assets and other liabilities		(189.0	)		27.2
Health care and insurance liabilities		(103.4	)		(278.9	)
Other, net		10.3			(.6	)
Net cash provided by operating activities		896.5			754.8
Cash flows from investing activities:
Proceeds from sales and maturities of investments		4,947.1			5,475.1
Cost of investments		(5,046.5	)		(5,356.3	)
Additions to property, equipment and software		(137.1	)		(144.5	)
Cash used for acquisition, net of cash acquired		(1,098.2	)		(.1	)
Net cash used for investing activities		(1,334.7	)		(25.8	)
Cash flows from financing activities:
Net repayment of long-term debt		(900.0	)		-
Net issuance of long-term debt		480.1			-
Net issuance (repayment) of short-term debt		549.8			(30.8	)
Deposits and interest credited for investment contracts		2.6			3.1
Withdrawals of investment contracts		(5.3	)		(5.8	)
Common shares issued under benefit plans		96.6			9.3
Stock-based compensation tax benefits		15.3			3.1
Common shares repurchased		(701.0	)		(466.5	)
Dividends paid to shareholders		(57.0	)		-
Collateral on interest rate swaps		-			(39.0	)
Net cash used for financing activities		(518.9	)		(526.6	)
Net (decrease) increase in cash and cash equivalents		(957.1	)		202.4
Cash and cash equivalents, beginning of period		1,867.6			1,203.6
Cash and cash equivalents, end of period	$	910.5		$	1,406.0
Supplemental cash flow information:
Interest paid	$	136.4		$	121.4
Income taxes paid		413.6			450.8

Refer to accompanying Condensed Notes to Consolidated Financial Statements (Unaudited).

Page 4

Condensed Notes to Consolidated Financial Statements

(Unaudited)

1. Organization

We conduct our operations in three business segments:

· Health Care consists of medical, pharmacy benefits management, dental and vision plans offered on both an Insured basis (where we assume all or a majority of the risk for medical and dental care costs) and an employer-funded basis (where the plan sponsor under an administrative services contract (“ASC”) assumes all or a majority of this risk).  Medical products include point-of-service (“POS”), preferred provider organization (“PPO”), health maintenance organization (“HMO”) and indemnity benefit plans.  Medical products also include health savings accounts (“HSAs”) and Aetna HealthFund®, consumer-directed health plans that combine traditional POS or PPO and/or dental coverage, subject to a deductible, with an accumulating benefit account (which may be funded by the plan sponsor and/or the member in the case of HSAs).  We also offer Medicare and Medicaid products and services and specialty products, such as health information exchange technology services, medical management and data analytics services, behavioral health plans and stop loss insurance, as well as products that provide access to our provider network in select geographies.

· Group Insurance primarily includes group life insurance products offered on an Insured basis, including basic and supplemental group term life, group universal life, supplemental or voluntary programs and accidental death and dismemberment coverage.  Group Insurance also includes (i) group disability products offered to employers on both an Insured and an ASC basis which consist primarily of short-term and long-term disability insurance, (ii) absence management services offered to employers, which include short-term and long-term disability administration and leave management, and (iii) long-term care products that were offered primarily on an Insured basis, which provide benefits covering the cost of care in private home settings, adult day care, assisted living or nursing facilities.  We no longer solicit or accept new long-term care customers.

·  Large Case Pensions manages a variety of retirement products (including pension and annuity products) primarily for tax qualified pension plans.  These products provide a variety of funding and benefit payment distribution options and other services.  Large Case Pensions also includes certain discontinued products (refer to Note 17 beginning on page 26 for additional information).

2. Summary of Significant Accounting Policies

Interim Financial Statements

These interim financial statements necessarily rely on estimates, including assumptions as to annualized tax rates.  In the opinion of management, all adjustments necessary for a fair statement of results for the interim periods have been made.  All such adjustments are of a normal, recurring nature.  The accompanying unaudited consolidated financial statements and related notes should be read in conjunction with the consolidated financial statements and related notes presented in our 2010 Annual Report on Form 10-K (our “2010 Annual Report”).  Certain financial information that is normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”), but that is not required for interim reporting purposes, has been condensed or omitted.  We have omitted certain footnote disclosures that would substantially duplicate the disclosures in our 2010 Annual Report, unless the information contained in those disclosures materially changed or is required by GAAP.  We have evaluated subsequent events from the balance sheet date through the date the financials were issued and determined there were no other items to disclose.

Principles of Consolidation

These unaudited consolidated financial statements have been prepared in accordance with GAAP and include the accounts of Aetna and the subsidiaries that we control.  All significant intercompany balances have been eliminated in consolidation.

Page 5

New Accounting Standards

Troubled Debt Restructurings

In April 2011, the Financial Accounting Standards Board (the “FASB”) released new accounting guidance and additional disclosure requirements relating to a creditor’s restructuring of receivables including mortgage loans.  The new guidance is effective beginning July 1, 2011.  Since we have no material problem, restructured or potential problem mortgage loans, we do not expect the adoption of this accounting guidance to have a material impact on our financial position or operating results.

Future Application of Accounting Standards

Deferred Acquisition Costs

In October 2010, the FASB released new accounting guidance for costs associated with acquiring or renewing insurance contracts.  This guidance clarifies that such costs qualify for capitalization when affiliated with the successful acquisition of new and renewed insurance contracts.  The new guidance is effective beginning January 1, 2012.  Since our acquisition costs related to our Health Care and Group Insurance products are expensed as incurred, we do not expect the adoption of this accounting guidance to have an impact on our financial position or operating results.

Reconsideration of Effective Control for Repurchase Agreements

In April 2011, the FASB released new accounting guidance relating to repurchase agreements and other agreements that entitle and obligate a transferor to repurchase or redeem financial assets before maturity.  The guidance prescribes when an entity may recognize a sale upon the transfer of financial assets subject to repurchase agreements.  The new guidance is effective beginning January 1, 2012.  Since we treat these transactions as secured borrowings rather than sales, we do not expect the adoption of this accounting guidance to have a material impact on our financial position or operating results.

Fair Value Measurements

In May 2011, the FASB released new guidance relating to fair value measurements.  This new guidance amends and clarifies certain existing fair value measurement principles and requires additional disclosures for all Level 3 assets, including a qualitative discussion about the sensitivity of Level 3 fair value measurements.  The new requirements are effective beginning January 1, 2012 and are not expected to have a material impact on our financial position or operating results.

Presentations of Comprehensive Income

In June 2011, the FASB released new requirements for the presentation of other comprehensive income in financial statements.  The new requirements eliminate the option that previously existed to present other comprehensive income within the statement of shareholder’s equity and require the presentation of other comprehensive income in the statements of income or as a separate statement.  The new requirements are effective beginning January 1, 2012.

Fees Paid to the Federal Government by Health Insurers

In July 2011, the FASB released new accounting guidance relating to mandated fees to be paid to the federal government by health insurers.  The guidance prescribes how to recognize and classify these fees in the statement of income.  The new guidance is effective beginning January 1, 2014.

3. Acquisitions

In June 2011, we entered into an agreement with Genworth Financial, Inc. (“Genworth”) to acquire Genworth’s Medicare Supplement business and related blocks of in-force business for approximately $290 million.  We expect to finance the acquisition using available resources.  

In June 2011, we acquired Prodigy Health Group (“Prodigy”), a third party administrator of self-funded health care plans, for approximately $600 million using available resources.  We recorded goodwill related to this transaction of approximately $442 million, of which approximately $52 million will be tax deductible.  All of the goodwill related to this acquisition was assigned to our Health Care segment.  Refer to Note 6 on page 7 for additional information.

In January 2011, we acquired Medicity Inc. (“Medicity”), a health information exchange company, for approximately $500 million using available resources.  We recorded goodwill related to this transaction of approximately $394 million, a majority of which will not be tax deductible.  All of the goodwill related to this acquisition was assigned to our Health Care segment.  Refer to Note 6 on page 7 for additional information.

Page 6

4. Earnings Per Common Share

Basic earnings per share (“EPS”) is computed by dividing net income by the weighted average number of common shares outstanding during the reporting period.  Diluted EPS is computed in a similar manner, except that the weighted average number of common shares outstanding is adjusted for the dilutive effects of our outstanding stock awards, but only if the effect is dilutive.

The computations of basic and diluted EPS for the three and six months ended June 30, 2011 and 2010 are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions, except per common share data)	2011		2010		2011		2010
Net income	$	536.7	$	491.0	$	1,122.7	$	1,053.6
Weighted average shares used to compute basic EPS		379.2		423.0		381.3		427.2
Dilutive effect of outstanding stock-based compensation awards (1)		8.1		7.2		7.9		7.7
Weighted average shares used to compute diluted EPS		387.3		430.2		389.2		434.9
Basic EPS	$	1.42	$	1.16	$	2.94	$	2.47
Diluted EPS	$	1.39	$	1.14	$	2.88	$	2.42

(1) Stock based compensation awards are not included in the calculation of diluted EPS if the exercise price is greater than the average market price of Aetna common shares during the period.  Approximately 12.6 million and 12.8 million stock appreciation rights (with exercise prices ranging from $41.92 to $59.76 and $36.87 to $59.76) were not included in the calculation of diluted EPS for the three and six months ended June 30, 2011, respectively.  Stock options not included in the calculation of diluted EPS for the three and six months ended June 30, 2011 were not material.  Approximately 18.7 million and 18.8 million stock appreciation rights (with exercise prices ranging from $32.11 to $59.76), respectively, and 5.8 million stock options (with exercise prices ranging from $33.38 to $42.35) were not included in the calculation of diluted EPS for the three and six months ended June 30, 2010.

5. Operating Expenses

For the three and six months ended June 30, 2011 and 2010, selling expenses (which include broker commissions, the variable component of our internal sales force compensation and premium taxes) and general and administrative expenses were as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Selling expenses	$	267.2	$	302.5	$	557.9	$	624.0
General and administrative expenses:
Salaries and related benefits		786.8		762.9		1,550.6		1,530.7
Other general and administrative expenses (1)		537.7		492.7		1,046.7		920.6
Total general and administrative expenses		1,324.5		1,255.6		2,597.3		2,451.3
Total operating expenses	$	1,591.7	$	1,558.1	$	3,155.2	$	3,075.3

(1) Includes litigation-related insurance proceeds of $20.0 million and $90.0 million for the three and six months ended June 30, 2010, respectively.  Refer to the reconciliation of operating earnings to net income in Note 15 beginning on page 25 for additional information.

6. Goodwill and Other Acquired Intangible Assets

The increase in goodwill for the six months ended June 30, 2011 and 2010 is as follows:

(Millions)		2011	2010
Balance, beginning of the period	$	5,146.4	$            5,146.2
Goodwill acquired:
Prodigy (1)		441.7	-
Medicity (1)		394.3	-
Other		.6	(.5)
Balance, end of the period  (2)	$	5,983.0	$            5,145.7

(1)	Goodwill related to the acquisitions of Prodigy and Medicity is considered preliminary, pending the final allocation of the applicable purchase price.
(2)	At June 30, 2011 and 2010, $104 million of goodwill was assigned to the Group Insurance segment with the remaining balance assigned to the Health Care segment.

Page 7

Other acquired intangible assets at June 30, 2011 and December 31, 2010 were comprised of the following:

				Accumulated				Amortization
(Millions)	Cost			Amortization		Net Balance		Period (Years)
June 30, 2011
Other acquired intangible assets:
Provider networks	$	703.2		$	413.8	$	289.4	12-25	(1)
Customer lists		660.8	(2)		293.7		367.1	4-10	(1)
Technology		114.9	(2)		29.9		85.0	3-10
Other		19.9	(2)		16.5		3.4	2-15
Definite-lived trademarks		46.9	(2)		11.8		35.1	2-15
Indefinite-lived trademarks		22.3			-		22.3
Total other acquired intangible assets	$	1,568.0		$	765.7	$	802.3
December 31, 2010
Other acquired intangible assets:
Provider networks	$	703.2		$	398.9	$	304.3	12-25	(1)
Customer lists		420.4			262.6		157.8	4-10	(1)
Technology		25.3			25.0		.3	3-5
Other		17.1			16.8		.3	2-15
Definite-lived trademarks		21.0			10.5		10.5	2-15
Indefinite-lived trademarks		22.3			-		22.3
Total other acquired intangible assets	$	1,209.3		$	713.8	$	495.5

(1)

The amortization period for our customer lists and provider networks includes an assumption of renewal or extension of these arrangements.  At June 30, 2011 and December 31, 2010, the periods prior to next renewal or extension for our provider networks primarily ranged from 1 to 3 years and the period prior to the next renewal or extension for our customer lists, excluding customer lists associated with Prodigy, is approximately one year.  At June 30, 2011, the period prior to the next renewal or extension for our customer lists associated with Prodigy primarily ranged from 2 to 3 years.  Any cost related to the renewal or extension of these contracts is expensed as incurred.

(2)

As a result of our acquisition of Medicity in 2011, we preliminarily assigned $79.6 million to technology, $50.4 million to customer lists, and $10.9 million to definite-lived trademarks.  As a result of our acquisition of Prodigy in 2011, we preliminarily assigned $190.0 million to customer lists, $15.0 million to definite-lived trademarks, $10.0 million to technology and $4.0 million to other.

We estimate annual pretax amortization for other acquired intangible assets for 2011 and over the next five years to be as follows:

(Millions)
2011	$	114.1
2012		114.4
2013		105.2
2014		86.0
2015		70.7
2016		66.9

7. Investments

Total investments at June 30, 2011 and December 31, 2010 were as follows:

	June 30, 2011								December 31, 2010
(Millions)	Current		Long-term		Total		Current		Long-term		Total
Debt and equity securities available for sale	$	2,023.9	$	15,126.4	$	17,150.3	$	2,111.9	$	14,849.7	$	16,961.6
Mortgage loans		51.2		1,525.1		1,576.3		55.2		1,454.6		1,509.8
Other investments		2.2		1,317.4		1,319.6		2.6		1,242.0		1,244.6
Total investments	$	2,077.3	$	17,968.9	$	20,046.2	$	2,169.7	$	17,546.3	$	19,716.0

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Debt and Equity Securities

Debt and equity securities available for sale at June 30, 2011 and December 31, 2010 were as follows:

			Gross		Gross
	Amortized		Unrealized		Unrealized				Fair
(Millions)	Cost		Gains		Losses				Value
June 30, 2011
Debt securities:
U.S. government securities	$	1,340.8	$	88.3	$	(.7	)		$	1,428.4
States, municipalities and political subdivisions		2,474.4		97.1		(18.1	)			2,553.4
U.S. corporate securities		6,450.4		533.8		(17.6	)			6,966.6
Foreign securities		2,804.9		227.8		(14.2	)			3,018.5
Residential mortgage-backed securities		1,046.5		56.0		(1.2	)	(1)		1,101.3
Commercial mortgage-backed securities		1,318.1		102.1		(6.2	)	(1)		1,414.0
Other asset-backed securities		428.3		17.9		(4.1	)	(1)		442.1
Redeemable preferred securities		187.1		13.7		(9.0	)			191.8
Total debt securities		16,050.5		1,136.7		(71.1	)			17,116.1
Equity securities		35.1		5.2		(6.1	)			34.2
Total debt and equity securities (2)	$	16,085.6	$	1,141.9	$	(77.2	)		$	17,150.3
December 31, 2010
Debt securities:
U.S. government securities	$	1,293.5	$	80.8	$	(.6	)		$	1,373.7
States, municipalities and political subdivisions		2,288.8		54.4		(46.9	)			2,296.3
U.S. corporate securities		6,731.5		553.0		(21.9	)			7,262.6
Foreign securities		2,667.4		231.1		(21.2	)			2,877.3
Residential mortgage-backed securities		1,089.2		53.6		(2.8	)	(1)		1,140.0
Commercial mortgage-backed securities		1,226.4		99.5		(13.7	)	(1)		1,312.2
Other asset-backed securities		447.6		21.1		(4.8	)	(1)		463.9
Redeemable preferred securities		196.7		12.3		(12.7	)			196.3
Total debt securities		15,941.1		1,105.8		(124.6	)			16,922.3
Equity securities		35.3		5.6		(1.6	)			39.3
Total debt and equity securities (2)	$	15,976.4	$	1,111.4	$	(126.2	)		$	16,961.6

(1)

At June 30, 2011 and December 31, 2010, we held securities for which we had recognized a credit-related impairment in the past.  For the six months ended June 30, 2011, we sold securities for which we previously recognized $10.3 million of non-credit related impairments, and in the six months ended June 30, 2010, we recognized $5.2 million, net, of non-credit-related impairments in other comprehensive loss related to these securities (as of June 30, 2011 and December 31, 2010, these securities had a net unrealized capital gain of $11.3 million and $3.9 million, respectively).

(2)

Investment risks associated with our experience-rated and discontinued products generally do not impact our operating results (refer to Note 17 beginning on page 26 for additional information on our accounting for discontinued products).  At June 30, 2011, debt and equity securities with a fair value of $4.0 billion, gross unrealized capital gains of $335.7 million and gross unrealized capital losses of $32.5 million and, at December 31, 2010, debt and equity securities with a fair value of $4.1 billion, gross unrealized capital gains of $339.5 million and gross unrealized capital losses of $38.1 million were included in total debt and equity securities, but support our experience-rated and discontinued products.  Changes in net unrealized capital gains (losses) on these securities are not reflected in accumulated other comprehensive loss.

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The fair value of debt securities at June 30, 2011 is shown below by contractual maturity.  Actual maturities may differ from contractual maturities because securities may be restructured, called or prepaid.

	Fair
(Millions)	Value
Due to mature:
Less than one year	$	697.3
One year through five years		3,244.2
After five years through ten years		5,227.0
Greater than ten years		4,990.2
Residential mortgage-backed securities		1,101.3
Commercial mortgage-backed securities		1,414.0
Other asset-backed securities		442.1
Total	$	17,116.1

Mortgage-Backed and Other Asset-Backed Securities

All of our residential mortgage-backed securities at June 30, 2011 were issued by the Government National Mortgage Association, the Federal National Mortgage Association or the Federal Home Loan Mortgage Corporation and carry agency guarantees and explicit or implicit guarantees by the U.S. Government.  At June 30, 2011, our residential mortgage-backed securities had an average quality rating of AAA and a weighted average duration of 3.2 years.

Our commercial mortgage-backed securities have underlying loans that are dispersed throughout the U.S.  Significant market observable inputs used to value these securities include probability of default and loss severity.  At June 30, 2011, these securities had an average quality rating of AA+ and a weighted average duration of 3.9 years.

Our other asset-backed securities have a variety of underlying collateral (e.g., automobile loans, credit card receivables and home equity loans).  Significant market observable inputs used to value these securities include the unemployment rate, loss severity and probability of default.  At June 30, 2011, these securities had an average quality rating of AA and a weighted average duration of 3.4 years.

Unrealized Capital Losses and Net Realized Capital Gains (Losses)

When a debt or equity security is in an unrealized capital loss position, we monitor the duration and severity of the loss to determine if sufficient market recovery can occur within a reasonable period of time.  We recognize an other-than-temporary impairment (“OTTI”) when we intend to sell a debt security that is in an unrealized capital loss position or if we determine a credit-related loss on a debt or equity security has occurred.

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Summarized below are the debt and equity securities we held at June 30, 2011 and December 31, 2010 that were in an unrealized capital loss position, aggregated by the length of time the investments have been in that position:

	Less than 12 months				Greater than 12 months				Total (1)
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(Millions)	Value		Losses		Value		Losses		Value		Losses
June 30, 2011
Debt securities:
U.S. government securities	$	86.8	$	.3	$	14.4	$	.4	$	101.2	$	.7
States, municipalities and political subdivisions		543.6		10.6		91.2		7.5		634.8		18.1
U.S. corporate securities		781.7		15.5		67.4		2.1		849.1		17.6
Foreign securities		395.7		8.5		34.2		5.7		429.9		14.2
Residential mortgage-backed securities		90.5		1.1		3.3		.1		93.8		1.2
Commercial mortgage-backed securities		135.4		1.8		41.2		4.4		176.6		6.2
Other asset-backed securities		60.1		.9		4.5		3.2		64.6		4.1
Redeemable preferred securities		40.0		.6		50.7		8.4		90.7		9.0
Total debt securities		2,133.8		39.3		306.9		31.8		2,440.7		71.1
Equity securities		17.0		5.8		10.9		.3		27.9		6.1
Total debt and equity securities (1)	$	2,150.8	$	45.1	$	317.8	$	32.1	$	2,468.6	$	77.2
December 31, 2010
Debt securities:
U.S. government securities	$	8.4	$	.2	$	19.8	$	.4	$	28.2	$	.6
States, municipalities and political subdivisions		964.9		37.6		82.7		9.3		1,047.6		46.9
U.S. corporate securities		665.8		17.0		210.2		4.9		876.0		21.9
Foreign securities		375.9		14.6		34.6		6.6		410.5		21.2
Residential mortgage-backed securites		103.7		2.6		6.6		.2		110.3		2.8
Commercial mortgage-backed securities		103.7		2.4		78.5		11.3		182.2		13.7
Other asset-backed securities		85.9		2.0		4.9		2.8		90.8		4.8
Redeemable preferred securities		4.5		-		94.3		12.7		98.8		12.7
Total debt securities		2,312.8		76.4		531.6		48.2		2,844.4		124.6
Equity securities		.5		-		9.5		1.6		10.0		1.6
Total debt and equity securities (1)	$	2,313.3	$	76.4	$	541.1	$	49.8	$	2,854.4	$	126.2

(1) At June 30, 2011 and December 31, 2010, debt and equity securities in an unrealized capital loss position of $32.5 million and $38.1 million, respectively, and with related fair value of $669.3 million and $650.5 million, respectively, related to experience-rated and discontinued products.

We reviewed the securities in the tables above and concluded that these are performing assets generating investment income to support the needs of our business.  In performing this review, we considered factors such as the quality of the investment security based on research performed by our internal credit analysts and external rating agencies and the prospects of realizing the carrying value of the security based on the investment’s current prospects for recovery.  At June 30, 2011, we did not have the intention to sell the debt securities that were in an unrealized capital loss position.

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The maturity dates for debt securities in an unrealized capital loss position at June 30, 2011 were as follows:

	Supporting discontinued				Supporting remaining
	and experience-rated products				products				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(Millions)	Value		Losses		Value		Losses		Value		Losses
Due to mature:
Less than one year	$	.7	$	-	$	72.8	$	1.2	$	73.5	$	1.2
One year through five years		11.5		.1		98.1		.8		109.6		.9
After five years through ten years		190.7		3.2		578.2		8.8		768.9		12.0
Greater than ten years		364.5		21.5		789.2		24.0		1,153.7		45.5
Residential mortgage-backed securities		19.5		.3		74.3		.9		93.8		1.2
Commercial mortgage-backed securities		29.6		.9		147.0		5.3		176.6		6.2
Other asset-backed securities		25.1		.4		39.5		3.7		64.6		4.1
Total	$	641.6	$	26.4	$	1,799.1	$	44.7	$	2,440.7	$	71.1

Net realized capital gains for the three and six months ended June 30, 2011 and 2010, excluding amounts related to experience-rated contract holders and discontinued products, were as follows:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(Millions)	2011			2010			2011			2010
OTTI losses on debt securities	$	(1.7	)	$	(3.5	)	$	(4.5	)	$	(23.7	)
Portion of OTTI losses on debt securities recognized   in other comprehensive income		-			.3			-			6.7
Net OTTI losses on debt securities recognized in earnings		(1.7	)		(3.2	)		(4.5	)		(17.0	)
Net realized capital gains, excluding OTTI losses on debt securities		23.1			46.6			65.6			137.1
Net realized capital gains	$	21.4		$	43.4		$	61.1		$	120.1

The net realized capital gains for the three and six months ended June 30, 2011 and 2010 were primarily attributable to the sale of debt securities, partially offset by losses from derivative transactions.

Excluding amounts related to experience-rated and discontinued products, proceeds from the sale of debt securities and the related gross realized capital gains and losses for the three and six months ended June 30, 2011 and 2010 were as follows:

	For the Three Months Ended				For the Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Proceeds on sales	$	1,577.5	$	1,974.1	$	3,091.9	$	3,565.0
Gross realized capital gains		55.4		86.7		109.2		195.4
Gross realized capital losses		6.3		11.8		25.1		20.0

Mortgage loans

Our mortgage loans are collateralized by commercial real estate.  During the three and six months ended June 30, 2011 and 2010 we had the following activity in our mortgage loan portfolio:

	For the Three Months Ended				For the Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
New mortgage loans	$	52.8	$	15.1	$	128.5	$	15.1
Mortgage loans fully repaid		4.7		38.8		39.2		53.1
Mortgage loans foreclosed		-		-		-		11.5

At June 30, 2011 and December 31, 2010, we had no material problem, restructured or potential problem mortgage loans.  We also had no material reserves on our mortgage loans at June 30, 2011 or December 31, 2010.

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We assess our mortgage loans on a regular basis for credit impairments, and annually we assign a credit quality indicator to each loan.  Our credit quality indicator is internally developed and categorizes our portfolio on a scale from 1 to 7.  Category 1 represents loans of superior quality, and Categories 6 and 7 represent loans where collections are at risk.  Most of our mortgage loans fall into the Level 2 to 4 ratings.  These ratings represent loans where credit risk is minimal to acceptable; however, these loans may display some susceptibility to economic changes.  Category 5 represents loans where credit risk is not substantial but these loans warrant management’s close attention.  These indicators are based upon several factors, including current loan to value ratios, property condition, market trends, borrower quality and deal structure.  Based upon our most recent assessment at June 30, 2011 and December 31, 2010, our mortgage loans were given the following ratings:

	June 30,		December 31,
(In millions, except credit ratings indicator)	2011		2010
1	$	99.6	$	99.4
2 to 4		1,349.4		1,301.5
5		94.8		86.1
6 and 7		32.5		22.8
Total	$	1,576.3	$	1,509.8

Variable Interest Entities

In determining whether to consolidate a variable interest entity ("VIE"), we consider several factors including whether we have the power to direct activities, the obligation to absorb losses and the right to receive benefits that could potentially be significant to the VIE.  We have relationships with certain real estate and hedge fund partnerships that are considered VIEs, but are not consolidated.  We record the amount of our investment in these partnerships as long-term investments on our balance sheets and recognize our share of partnership income or losses in earnings.  Our maximum exposure to loss as a result of our investment in these partnerships is our investment balance at June 30, 2011 and December 31, 2010 of approximately $169 million and $153 million, respectively, and the risk of recapture of tax credits related to the real estate partnerships previously recognized, which we do not consider significant.  We do not have a future obligation to fund losses or debts on behalf of these investments; however, we may voluntarily contribute funds.  The real estate partnerships construct, own and manage low-income housing developments and had total assets of approximately $5.3 billion and $5.1 billion at June 30, 2011 and December 31, 2010, respectively.  The hedge fund partnerships had total assets of approximately $6.7 billion and $6.1 billion at June 30, 2011 and December 31, 2010, respectively.

Non-controlling Interests

Certain of our investment holdings are partially-owned by third parties.  At June 30, 2011 and December 31, 2010, $71 million and $74 million, respectively, of our investment holdings were owned by third parties.  The non-controlling entities’ share of these investments was included in accrued expenses and other current liabilities.  Net income attributable to these interests was $1 million and $3 million for the three and six months ended June 30, 2011, respectively, and $1 million for each of the three and six months ended June 30, 2010.  These non-controlling interests did not have a material impact on our financial position or operating results.

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Net Investment Income

Sources of net investment income for the three and six months ended June 30, 2011 and 2010 were as follows:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(Millions)	2011			2010			2011			2010
Debt securities	$	212.1		$	232.1		$	423.4		$	468.5
Mortgage loans		24.6			26.3			49.3			53.0
Other investments		11.8			2.5			35.9			21.1
Gross investment income		248.5			260.9			508.6			542.6
Less:  investment expenses		(7.2	)		(7.2	)		(14.7	)		(13.7	)
Net investment income (1)	$	241.3		$	253.7		$	493.9		$	528.9

(1) Investment risks associated with our experience-rated and discontinued products generally do not impact our operating results (refer to Note 17 beginning on page 26 for additional information on our accounting for discontinued products).  Net investment income includes $80.4 million and $167.0 million for the three and six months ended June 30, 2011, respectively, and $78.9 million and $168.4 million for the three and six months ended June 30, 2010, respectively, related to investments supporting our experience-rated and discontinued products.

8. Other Comprehensive (Loss) Income

Shareholders’ equity included the following activity in accumulated other comprehensive loss (excluding amounts related to experience-rated contract holders and discontinued products) for the six months ended June 30, 2011 and 2010:

	Net Unrealized Gains (Losses)									Pension and OPEB Plans						Total
	Securities						Foreign									Accumulated
							Currency			Unrecognized			Unrecognized			Other
	Previously						and			Net Actuarial			Prior Service			Comprehensive
(Millions)	Impaired (1)			All Other			Derivatives			Losses			Cost			(Loss) Income
Six months ended June 30, 2011
Balance at December 31, 2010	$	75.1		$	375.2		$	(27.3	)	$	(1,614.0	)	$	28.4		$	(1,162.6	)
Net unrealized gains (losses) ($155.5 pretax)		2.1			102.7			(3.7	)		-			-			101.1
Reclassification to earnings ($49.3 pretax)		(14.4	)		(38.2	)		1.4			20.5			(1.3	)		(32.0	)
Other comprehensive (loss) income		(12.3	)		64.5			(2.3	)		20.5			(1.3	)		69.1
Balance at June 30, 2011	$	62.8		$	439.7		$	(29.6	)	$	(1,593.5	)	$	27.1		$	(1,093.5	)
Six months ended June 30, 2010
Balance at December 31, 2009	$	100.3		$	235.7		$	25.3		$	(1,623.8	)	$	39.5		$	(1,223.0	)
Net unrealized gains (losses) ($449.4 pretax)		48.7			276.8			(33.4	)		-			-			292.1
Reclassification to earnings ($72.8 pretax)		(77.4	)		(82.4	)		.2			66.8			(1.9	)		(94.7	)
Other comprehensive (loss) income		(28.7	)		194.4			(33.2	)		66.8			(1.9	)		197.4
Balance at June 30, 2010	$	71.6		$	430.1		$	(7.9	)	$	(1,557.0	)	$	37.6		$	(1,025.6	)

(1) Represents unrealized losses on the non-credit-related component of impaired debt securities that we do not intend to sell and subsequent appreciation in the fair value of those securities as well as those that we intend to sell.

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9. Financial Instruments

The preparation of our consolidated financial statements in accordance with GAAP requires certain of our assets and liabilities to be reflected at their fair value, and others on another basis, such as an adjusted historical cost basis.  In this note, we provide details on the fair value of financial assets and liabilities and how we determine those fair values.  We present this information for those financial instruments that are measured at fair value for which the change in fair value impacts net income or other comprehensive income separately from other financial assets and liabilities.

Financial Instruments Measured at Fair Value in our Balance Sheets

Certain of our financial instruments are measured at fair value in our balance sheets.  The fair values of these instruments are based on valuations that include inputs that can be classified within one of three levels of a hierarchy established by GAAP.  The following are the levels of the hierarchy and a brief description of the type of valuation information (“inputs”) that qualifies a financial asset or liability for each level:

o Level 1 – Unadjusted quoted prices for identical assets or liabilities in active markets.

o Level 2 – Inputs other than Level 1 that are based on observable market data.  These include: quoted prices for similar assets in active markets, quoted prices for identical assets in inactive markets, inputs that are observable that are not prices (such as interest rates and credit risks) and inputs that are derived from or corroborated by observable markets.

o Level 3 – Developed from unobservable data, reflecting our own assumptions.

Financial assets and liabilities are classified based upon the lowest level of input that is significant to the valuation.  When quoted prices in active markets for identical assets and liabilities are available, we use these quoted market prices to determine the fair value of financial assets and liabilities and classify these assets and liabilities as Level 1.  In other cases where a quoted market price for identical assets and liabilities in an active market is either not available or not observable, we estimate fair value using valuation methodologies based on available and observable market information or by using a matrix pricing model.  These financial assets and liabilities would then be classified as Level 2.  If quoted market prices are not available, we determine fair value using broker quotes or an internal analysis of each investment’s financial performance and cash flow projections.  Thus, financial assets and liabilities may be classified in Level 3 even though there may be some significant inputs that may be observable.

The following is a description of the valuation methodologies used for our financial assets and liabilities that are measured at fair value, including the general classification of such assets and liabilities pursuant to the valuation hierarchy.

Debt Securities – Where quoted prices are available in an active market, our debt securities are classified in Level 1 of the fair value hierarchy.  Our Level 1 debt securities are comprised primarily of U.S. Treasury securities.  If Level 1 valuations are not available, the fair value is determined using models such as matrix pricing, which use quoted market prices of debt securities with similar characteristics, or discounted cash flows to estimate fair value.  We obtained one price for each of our Level 2 debt securities and did not adjust any of these prices at June 30, 2011 or December 31, 2010.

We also value certain debt securities using Level 3 inputs.  For Level 3 debt securities, fair values are determined by outside brokers or, in the case of certain private placement securities, are priced internally.  Outside brokers determine the value of these debt securities through a combination of their knowledge of the current pricing environment and market flows.  We obtained one non-binding broker quote for each of these Level 3 debt securities and did not adjust any of these quotes at June 30, 2011 or December 31, 2010.  The total fair value of our broker quoted securities was approximately $149 million at June 30, 2011 and $153 million at December 31, 2010.  Examples of these Level 3 debt securities include certain U.S. and foreign corporate securities and certain of our commercial mortgage-backed securities as well as other asset-backed securities.  For some of our private placement securities, our internal staff determines the value of these debt securities by analyzing spreads of corporate and sector indices as well as interest spreads of comparable public bonds.  Examples of these Level 3 debt securities include certain U.S. securities and certain tax-exempt municipal securities.

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Equity Securities – We currently have two classifications of equity securities:  those that are publicly traded and those that are privately held.  Our publicly-traded securities are classified as Level 1 because quoted prices are available for these securities in an active market.  For privately-held equity securities, there is no active market; therefore, we classify these securities as Level 3 because we price these securities through an internal analysis of each investment’s financial statements and cash flow projections.

Derivatives – Our derivative instruments are valued using models that primarily use market observable inputs and therefore are classified as Level 2 because they are traded in markets where quoted market prices are not readily available.

Financial assets and liabilities measured at fair value on a recurring basis in our balance sheets at June 30, 2011 and December 31, 2010 were as follows:

(Millions)	Level 1		Level 2		Level 3		Total
June 30, 2011
Assets:
Debt securities:
U.S. government securities	$	1,099.3	$	329.1	$	-	$	1,428.4
States, municipalities and political subdivisions		-		2,551.8		1.6		2,553.4
U.S. corporate securities		-		6,909.5		57.1		6,966.6
Foreign securities		-		2,968.4		50.1		3,018.5
Residential mortgage-backed securities		-		1,101.3		-		1,101.3
Commercial mortgage-backed securities		-		1,374.2		39.8		1,414.0
Other asset-backed securities		-		389.3		52.8		442.1
Redeemable preferred securities		-		173.3		18.5		191.8
Total debt securities		1,099.3		15,796.9		219.9		17,116.1
Equity securities		1.0		-		33.2		34.2
Derivatives		-		2.2		-		2.2
Total	$	1,100.3	$	15,799.1	$	253.1	$	17,152.5
Liabilities:
Derivatives	$	-	$	1.2	$	-	$	1.2
December 31, 2010
Assets:
Debt securities:
U.S. government securities	$	1,081.0	$	292.7	$	-	$	1,373.7
States, municipalities and political subdivisions		-		2,292.7		3.6		2,296.3
U.S. corporate securities		-		7,201.9		60.7		7,262.6
Foreign securities		-		2,822.4		54.9		2,877.3
Residential mortgage-backed securities		-		1,140.0		-		1,140.0
Commercial mortgage-backed securities		-		1,275.3		36.9		1,312.2
Other asset-backed securities		-		407.4		56.5		463.9
Redeemable preferred securities		-		178.5		17.8		196.3
Total debt securities		1,081.0		15,610.9		230.4		16,922.3
Equity securities		1.4		-		37.9		39.3
Derivatives		-		2.6		-		2.6
Total	$	1,082.4	$	15,613.5	$	268.3	$	16,964.2
Liabilities:
Derivatives	$	-	$	6.5	$	-	$	6.5

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The change in the balance of Level 3 financial assets for the three and six months ended June 30, 2011 is as follows:

(Millions)	Foreign Securities			Commercial Mortgage-backed Securities			Equity Securities			Other			Total
Three Months Ended June 30, 2011
Beginning balance	$	68.4		$	43.2		$	32.6		$	138.5		$	282.7
Net realized and unrealized capital gains (losses):
Included in earnings		1.0			.8			-			(1.0	)		.8
Included in other comprehensive income		(.1	)		.7			-			1.3			1.9
Other (1)		.6			(.1	)		.6			(.1	)		1.0
Purchases		2.7			-			-			.1			2.8
Sales		(12.9	)		(3.7	)		-			-			(16.6	)
Settlements		(.6	)		(1.1	)		-			(8.8	)		(10.5	)
Transfers out of Level 3		(9.0	)		-			-			-			(9.0	)
Ending balance	$	50.1		$	39.8		$	33.2		$	130.0		$	253.1
Amount of Level 3 net unrealized losses
included in net income	$	-		$	-		$	-		$	(.2	)	$	(.2	)
(Millions)	Foreign Securities			Commercial Mortgage-backed Securities			Equity Securities			Other			Total
Six Months Ended June 30, 2011
Beginning balance	$	54.9		$	36.9		$	37.9		$	138.6		$	268.3
Net realized and unrealized capital gains (losses):
Included in earnings		.8			1.5			-			(1.6	)		.7
Included in other comprehensive income		(.5	)		2.9			-			.4			2.8
Other (1)		.7			(.1	)		(4.9	)		-			(4.3	)
Purchases		5.3			4.6			.2			10.6			20.7
Sales		(10.2	)		(3.7	)		-			(5.9	)		(19.8	)
Settlements		(.9	)		(2.3	)		-			(12.1	)		(15.3	)
Transfers into Level 3		-			-			-			-			-
Ending balance	$	50.1		$	39.8		$	33.2		$	130.0		$	253.1
Amount of Level 3 net unrealized losses
included in net income	$	-		$	-		$	-		$	(.2	)	$	(.2	)

(1) Reflects realized and unrealized capital gains and losses on investments supporting our experience-rated and discontinued products, which do not impact our operating results.

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The change in the balance of Level 3 financial assets for the three and six months ended June 30, 2010 was as follows:

	Three Months Ended												Six Months Ended
	June 30, 2010												June 30, 2010
(Millions)	U.S.  Corporate  Securities			Foreign  Securities			Other			Total			U.S. Corporate  Securities			Foreign  Securities			Other			Total
Beginning balance	$	69.5		$	237.4		$	205.1		$	512.0		$	75.3		$	199.0		$	209.2		$	483.5
Net realized and unrealized gains (losses):
Included in earnings		(.1	)		2.7			2.1			4.7			(.3	)		7.5			3.5			10.7
Included in other comprehensive income		1.6			(4.9	)		3.4			.1			.1			(2.8	)		12.3			9.6
Other (1)		.2			.3			(6.0	)		(5.5	)		(.1	)		.8			(5.6	)		(4.9	)
Purchases, sales and maturities		20.5			(54.2	)		(33.7	)		(67.4	)		11.4			(66.9	)		(35.7	)		(91.2	)
Transfers out of Level 3		(6.6	)		(130.4	)		(1.8	)		(138.8	)		(1.3	)		(86.7	)		(14.6	)		(102.6	)
Ending balance	$	85.1		$	50.9		$	169.1		$	305.1		$	85.1		$	50.9		$	169.1		$	305.1
Amount of Level 3 net unrealized losses included in net income	$	-		$	(.9	)	$	-		$	(.9	)	$	-		$	(.9	)	$	(.2	)	$	(1.1	)

(1) Reflects realized and unrealized capital gains and losses on investments supporting our experience-rated and discontinued products, which do not impact our operating results.

There were no transfers into Level 3 during the three and six months ended June 30, 2011 and 2010.

Financial Instruments Not Measured at Fair Value in our Balance Sheets

The following is a description of the valuation methodologies used for estimating the fair value of our financial assets and liabilities that are carried on our balance sheets at adjusted cost or contract value.

Mortgage loans:Fair values are estimated by discounting expected mortgage loan cash flows at market rates that reflect the rates at which similar loans would be made to similar borrowers.  These rates reflect our assessment of the credit quality and the remaining duration of the loans.  The fair value estimates of mortgage loans of lower credit quality, including problem and restructured loans, are based on the estimated fair value of the underlying collateral.

Investment contract liabilities:

• With a fixed maturity:  Fair value is estimated by discounting cash flows at interest rates currently being offered by, or available to, us for similar contracts.

• Without a fixed maturity:  Fair value is estimated as the amount payable to the contract holder upon demand.  However, we have the right under such contracts to delay payment of withdrawals that may ultimately result in paying an amount different than that determined to be payable on demand.

Long-term debt:  Fair values are based on quoted market prices for the same or similar issued debt or, if no quoted market prices are available, on the current rates estimated to be available to us for debt of similar terms and remaining maturities.

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The carrying value and estimated fair value of certain of our financial instruments at June 30, 2011 and December 31, 2010 were as follows:

	June 30, 2011				December 31, 2010
			Estimated				Estimated
	Carrying		Fair		Carrying		Fair
(Millions)	Value		Value		Value		Value
Assets:
Mortgage loans	$	1,576.3	$	1,625.7	$	1,509.8	$	1,526.1
Liabilities:
Investment contract liabilities:
With a fixed maturity		38.2		38.7		41.7		42.7
Without a fixed maturity		528.0		540.3		511.5		510.9
Long-term debt		3,976.5		4,363.6		4,382.5		4,728.9

Separate Accounts Measured at Fair Value in our Balance Sheets

Separate Accounts assets in our Large Case Pensions business represent funds maintained to meet specific objectives of contract holders.  Since contract holders bear the investment risk of these assets, a corresponding Separate Accounts liability has been established equal to the assets.  These assets and liabilities are carried at fair value.  Net investment income and capital gains and losses accrue directly to such contract holders.  The assets of each account are legally segregated and are not subject to claims arising from our other businesses.  Deposits, withdrawals, net investment income and realized and unrealized capital gains and losses on Separate Accounts assets are not reflected in our statements of income, shareholders’ equity or cash flows.

Separate Accounts assets include debt and equity securities and derivative instruments.  The valuation methodologies used for these assets are similar to the methodologies described beginning on page 15.  During the second quarter of 2010, Separate Accounts assets also included investments in real estate that were carried at fair value.  The following is a description of the valuation methodology used to price these investments, including the general classification pursuant to the valuation hierarchy.

Real Estate – The values of the underlying real estate investments are estimated using generally accepted valuation techniques and give consideration to the investment structure.  An appraisal of the underlying real estate for each of these investments is performed annually.  In the quarters in which an investment is not appraised or its valuation is not updated, fair value is based on available market information.  The valuation of a real estate investment is adjusted only if there has been a significant change in economic circumstances related to the investment since acquisition or the most recent independent valuation and upon the appraiser’s review and concurrence with the valuation.  Further, these valuations have been prepared giving consideration to the income, cost and sales comparison approaches of estimating property value.  These valuations do not necessarily represent the prices at which the real estate investments would sell, since market prices of real estate investments can only be determined by negotiation between a willing buyer and seller.  Therefore, these investment values are classified as Level 3.

Separate Accounts financial assets at June 30, 2011 and December 31, 2010 were as follows:

	June 30, 2011										December 31, 2010
(Millions)	Level 1		Level 2			Level 3		Total			Level 1		Level 2		Level 3		Total
Debt securities	$	1,120.8	$	2,603.2		$	39.0	$	3,763.0		$	1,059.7	$	2,524.9	$	56.0	$	3,640.6
Equity securities		1,120.6		-			-		1,120.6			1,231.9		-		-		1,231.9
Derivatives		-		(1.4	)		-		(1.4	)		-		.2		-		.2
Total (1)	$	2,241.4	$	2,601.8		$	39.0	$	4,882.2		$	2,291.6	$	2,525.1	$	56.0	$	4,872.7

(1) Excludes $303.2 million and $422.6 million of cash and cash equivalents and other receivables at June 30, 2011 and December 31, 2010, respectively.

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The change in the balance of Level 3 Separate Accounts financial assets for the three and six months ended June 30, 2011 and 2010 was as follows:

	Debt Securities
	Three Months Ended	Six Months Ended
(Millions)	June 30, 2011	June 30, 2011
Beginning balance	$                   45.5	$                     56.0
Total losses accrued to contract holders	(5.4)	(15.6)
Purchases, sales and settlements	.4	(.9)
Transfers out of Level 3	(1.5)	(.5)
Ending balance	$                   39.0	$                     39.0

	Three Months Ended									Six Months Ended
	June 30, 2010									June 30, 2010
(Millions)	Debt Securities			Real Estate			Total			Debt Securities			Real Estate			Total
Beginning balance	$	101.1		$	70.3		$	171.4		$	97.3		$	71.4		$	168.7
Total (losses) gains accrued to contract holders		(15.7	)		6.2			(9.5	)		(30.4	)		5.1			(25.3	)
Purchases, sales and maturities		2.3			.2			2.5			21.2			.2			21.4
Transfers out of Level 3  (1)		-			(76.7	)		(76.7	)		(.4	)		(76.7	)		(77.1	)
Ending balance	$	87.7		$	-		$	87.7		$	87.7		$	-		$	87.7

(1) The transfers out of Level 3 for 2010 primarily represent real estate Separate Account assets that were transitioned out of our business.

10. Pension and Other Postretirement Plans

Defined Benefit Retirement Plans

Components of the net periodic benefit (income) cost of our noncontributory defined benefit pension plans and other postretirement benefit (“OPEB”) plans for the three and six months ended June 30, 2011 and 2010 were as follows:

	Pension Plans												OPEB Plans
	Three Months Ended						Six Months Ended						Three Months Ended						Six Months Ended
	June 30,						June 30,						June 30,						June 30,
(Millions)	2011			2010			2011			2010			2011			2010			2011			2010
Operating component:
Service cost	$	-		$	15.4		$	-		$	30.7		$	-		$	-		$	.1		$	.1
Amortization of prior service cost		(.1	)		(.6	)		(.2	)		(1.1	)		(.8	)		(.9	)		(1.8	)		(1.8	)
Total operating component (1)		(.1	)		14.8			(.2	)		29.6			(.8	)		(.9	)		(1.7	)		(1.7	)
Financing component:
Interest cost		78.1			76.7			156.2			153.3			4.1			4.4			8.3			8.9
Expected return on plan assets		(95.9	)		(88.2	)		(191.9	)		(176.5	)		(.9	)		(.9	)		(1.8	)		(1.8	)
Recognized net actuarial losses		14.6			50.2			29.2			100.5			1.2			1.2			2.4			2.3
Total financing component (1)		(3.2	)		38.7			(6.5	)		77.3			4.4			4.7			8.9			9.4
Net periodic benefit (income) cost	$	(3.3	)	$	53.5		$	(6.7	)	$	106.9		$	3.6		$	3.8		$	7.2		$	7.7

(1) The operating component of this expense is allocated to our business segments and the financing component is allocated to our Corporate Financing segment.  Our Corporate Financing segment is not a business segment but is added to our business segments to reconcile to our consolidated results.  Refer to Note 15 beginning on page 25 for additional information on our business segments.

Effective December 31, 2010, our employees no longer earn future pension service credits in our tax-qualified defined benefit pension plan (the “Aetna Pension Plan”).  The Aetna Pension Plan will continue to operate and account balances will continue to earn annual interest credits.  The decrease in our pension cost for the three and six months ended June 30, 2011 compared to the corresponding periods in 2010 was caused by this freezing of the Aetna Pension Plan.

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11. Debt

The carrying value of our long-term debt at June 30, 2011 and December 31, 2010 was as follows:

	June 30,		December 31,
(Millions)	2011		2010
Senior notes, 5.75%, due 2011 (1)	$	-	$	450.0
Senior notes, 7.875%, due 2011 (1)		-		449.9
Senior notes, 6.0%, due 2016		747.8		747.6
Senior notes, 6.5%, due 2018		499.0		498.9
Senior notes, 3.95%, due 2020		742.1		741.7
Senior notes, 4.125%, due 2021		493.1		-
Senior notes, 6.625%, due 2036		798.7		798.7
Senior notes, 6.75%, due 2037		695.8		695.7
Total long-term debt		3,976.5		4,382.5
Less current portion of long-term debt		-		899.9	(2)
Total long-term debt, less current portion	$	3,976.5	$	3,482.6

(1)	The 5.75% senior notes due June 2011 were repaid in June 2011.  The 7.875% senior notes due March 2011 were repaid in March 2011.
(2)	At December 31, 2010, the 7.875% senior notes due March 2011 and the 5.75% senior notes due June 2011 were classified as current in the accompanying consolidated balance sheet.

In May 2011, we issued $500 million of 4.125% senior notes due 2021 (the “2011 senior notes”) in anticipation of the  scheduled maturity of our 5.75% senior notes due June 2011.  In the first half of 2011, prior to issuing the 2011 senior notes, we entered into two interest rate swaps with an aggregate notional value of $250 million and designated those interest rate swaps as a hedge against interest rate exposure related to the forecast issuance of that fixed-rate debt.  We terminated the swaps prior to issuing the 2011 senior notes and upon termination of the swaps, paid $9 million to the swap counterparty.  The related $9 million loss is recorded in other comprehensive income and is being amortized as an increase to interest expense over the life of the 2011 senior notes.

At June 30, 2011, we had approximately $550 million of commercial paper outstanding with a weighted average interest rate of .31%.  As of December 31, 2010, we did not have any commercial paper outstanding.

At June 30, 2011, we had an unsecured $1.5 billion revolving credit agreement (the “Facility”) with several financial institutions which terminates in March 2013.  The Facility provides for the issuance of up to $200 million of letters of credit at our request, which count as usage of the available commitments under the Facility.  Upon our agreement with one or more financial institutions, we may expand the aggregate commitments under the Facility to a maximum of $2.0 billion.Various interest rate options are available under the Facility.  Any revolving borrowings mature on the termination date of the Facility.  We pay facility fees on the Facility ranging from .045% to .175% per annum, depending upon our long-term senior unsecured debt rating.  The facility fee was .06% at June 30, 2011.  The Facility contains a financial covenant that requires us to maintain a ratio of total debt to consolidated capitalization as of the end of each fiscal quarter at or below .5 to 1.0.  For this purpose, consolidated capitalization equals the sum of total shareholders’ equity, excluding any overfunded or underfunded status of our pension and OPEB plans and any net unrealized capital gains and losses, and total debt (as defined in the Facility).  We met this requirement at June 30, 2011.  There were no amounts outstanding under the Facility at any time during the three or six months ended June 30, 2011.

12. Capital Stock

On December 3, 2010 and May 20, 2011, our Board of Directors (our “Board”) authorized two share repurchase programs.  Each repurchase program authorized us to repurchase up to $750 million of our common stock.  During the six months ended June 30, 2011, we repurchased approximately 18 million shares of common stock at a cost of approximately $735 million (approximately $34 million of these repurchases were settled in early July).  At June 30, 2011, we had remaining authorization to repurchase an aggregate of up to approximately $750 million of common stock under the December 3, 2010 and May 20, 2011 programs.

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In February 2011, we announced that our Board increased our cash dividend to shareholders to $.15 per share and moved us to a quarterly dividend payment cycle.  Prior to February 2011, our policy had been to pay an annual dividend of $.04 per share.

During the six months ended June 30, 2011 our Board declared the following cash dividends:

	Dividend Amount			Stockholders of	Date Paid/	Total Dividends
Date Declared	Per Share			Record Date	To be Paid	(Millions)
February 3, 2011		$	.15	April 14, 2011	April 29, 2011	$	57.0
May 20, 2011			.15	July 14, 2011	July 29, 2011		56.8

Declaration and payment of future dividends is at the discretion of our Board and may be adjusted as business needs or market conditions change.

On February 7, 2011, approximately .6 million performance stock units (“PSUs”), 1.2 million market stock units (“MSUs”) and 1.0 million restricted stock units (“RSUs”) were granted to certain employees.  The number of vested PSUs (which could range from zero to 200% of the original number of units granted) is dependent upon the degree to which we achieve performance goals during the performance period as determined by our Board’s Committee on Compensation and Organization.  The performance period for the PSUs ends on December 31, 2011, and the vesting period ends on December 7, 2012.   The number of vested MSUs (which could range from zero to 150% of the original number of units granted) is based on the change between the closing price of our common stock on the grant date and the weighted average closing price of our common stock for the thirty trading days prior to the vesting date.  The MSUs have a twenty-two month vesting period.  Each vested PSU, MSU and RSU represents one share of common stock and will be paid in shares of common stock, net of taxes, at the end of the vesting period.  The RSUs will become 100% vested approximately three years from the grant date, with one-third vesting each December.

13. Dividend Restrictions and Statutory Surplus

Under regulatory requirements at June 30, 2011, the amount of dividends that may be paid to the Company through the end of 2011 by our insurance and HMO subsidiaries without prior approval by regulatory authorities is approximately $1.1 billion in the aggregate.  There are no such restrictions on distributions from Aetna to its shareholders.  In the second quarter of 2011, our insurance and HMO subsidiaries paid approximately $500 million of dividends to the Company.

The combined statutory capital and surplus of our insurance and HMO subsidiaries was $7.1 billion and $6.2 billion at June 30, 2011 and December 31, 2010, respectively.

14. Commitments and Contingencies

Guaranty Fund Assessments

Under guaranty fund laws existing in all states, insurers doing business in those states can be assessed (up to prescribed limits) for certain obligations of insolvent insurance companies to policyholders and claimants. The health insurance guaranty associations in which we participate that operate under these laws respond to insolvencies of long-term care insurers as well as health insurers.  Our assessments generally are based on a formula relating to our premiums in the state compared to the premiums of other insurers. Certain states allow assessments to be recovered as offsets to premium taxes.  Some states have similar laws relating to HMOs.  The Pennsylvania Insurance Commissioner has placed long-term care insurer Penn Treaty Network America Insurance Company and one of its subsidiaries (collectively, “Penn Treaty”) in rehabilitation, an intermediate action before insolvency, and has petitioned a state court for liquidation.  We cannot predict when a decision will be made, although we believe it is likely that the state court will rule within the next twelve months.  If Penn Treaty is declared insolvent and placed in liquidation, we and other insurers likely would be assessed over a period of years by guaranty associations for the payments the guaranty associations are required to make to Penn Treaty policyholders.  We are currently unable to predict the ultimate outcome of, or reasonably estimate the loss or range of losses resulting from, this potential insolvency because we cannot predict when the state court will render a decision, the amount of the insolvency, if any, the amount and timing of associated guaranty association assessments or the amount or availability of potential

Page 22

offsets, such as premium tax offsets.  It is reasonably possible that in future reporting periods we may record a liability and expense relating to Penn Treaty or other insolvencies which could have a material adverse effect on our operating results, financial position and cash flows.  While we have historically recovered more than half of guaranty fund assessments through statutorily permitted premium tax offsets, significant increases in assessments could jeopardize future recovery of these assessments as regulatory actions may limit future offsets.

Litigation and Regulatory Proceedings

Out-of-Network Benefit Proceedings

We are named as a defendant in several purported class actions and individual lawsuits arising out of our practices related to the payment of claims for services rendered to our members by health care providers with whom we do not have a contract (“out-of-network providers”).   Among other things, these lawsuits allege that we paid too little to our health plan members and/or providers for these services, among other reasons, because of our use of data provided by Ingenix, Inc., a subsidiary of one of our competitors (“Ingenix”). Other major health insurers are the subject of similar litigation or have settled similar litigation.  

Various plaintiffs who are health care providers or medical associations seek to represent nationwide classes of out-of-network providers who provided services to our members during the period from 2001 to the present.  Various plaintiffs who are members in our health plans seek to represent nationwide classes of our members who received services from out-of-network providers during the period from 2001 to the present.  Taken together, these lawsuits allege that we violated state law, the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), the Racketeer Influenced and Corrupt Organizations Act and federal antitrust laws, either acting alone or in concert with our competitors.  The purported classes seek reimbursement of all unpaid benefits, recalculation and repayment of deductible and coinsurance amounts, unspecified damages and treble damages, statutory penalties, injunctive and declaratory relief, plus interest, costs and attorneys’ fees, and seek to disqualify us from acting as a fiduciary of any benefit plan that is subject to ERISA.  Individual lawsuits that generally contain similar allegations and seek similar relief have been brought by a health plan member and by out-of-network providers.

The first class action case was commenced on July 30, 2007.  The federal Judicial Panel on Multi-District Litigation (the “MDL Panel”) has consolidated these class action cases in the U.S. District Court for the District of New Jersey (the “New Jersey District Court”) under the caption In re: Aetna UCR Litigation, MDL No. 2020 (“MDL 2020”).   In addition, the MDL Panel has transferred the individual lawsuits to MDL 2020.  On May 9, 2011, the New Jersey District Court dismissed the physician plaintiffs from MDL 2020 without prejudice.  The New Jersey District Court’s action followed a ruling by the United States District Court for the Southern District of Florida (the “Florida District Court”) that the physician plaintiffs were enjoined from participating in MDL 2020 due to a prior settlement and release.  The physician plaintiffs have attempted to appeal the Florida District Court’s ruling to the United States Court of Appeals for the Eleventh Circuit.

Discovery is substantially complete in MDL 2020, several motions are pending, and briefing on class certification has been completed.  The court has not set a trial date or a timetable for deciding class certification.  We intend to vigorously defend ourselves against the claims brought in these cases.

We also have received subpoenas and/or requests for documents and other information from, and been investigated by, attorneys general and other state and/or federal regulators, legislators and agencies relating to our out-of-network benefit payment practices.  It is reasonably possible that others could initiate additional litigation or additional regulatory action against us with respect to our out-of-network benefit payment practices.

CMS Actions

On June 13, 2011, the Centers for Medicare & Medicaid Services (“CMS”) lifted the intermediate sanctions it had previously imposed on us that required us to suspend the enrollment of and marketing to new members of all Aetna Medicare Advantage and Standalone Prescription Drug Plan (“PDP”) contracts.  The sanctions related to our compliance with certain Medicare Part D requirements.  We have resumed marketing our Medicare Advantage and PDP products and are enrolling beneficiaries with effective dates on and after July 1, 2011.  CMS still is not assigning any new low income subsidy members to our PDPs at this time.  However, low income subsidy members can make their own choice to enroll in Aetna products during the upcoming annual enrollment period.  As a result of these sanctions, our 2011 Medicare membership and operating results have been adversely affected because we did not participate in the 2010 open enrollment for individual 2011 Medicare plans, which occurred between November 15,

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2010 and December 31, 2010.  We continue to cooperate fully with CMS to address residual matters identified in connection with the sanction review.

CMS regularly audits our performance to determine our compliance with CMS’s regulations, our contracts with CMS and the quality of services we provide to our Medicare members.  CMS uses various payment mechanisms to allocate and adjust premium payments to our and other companies’ Medicare plans by considering the applicable health status of Medicare members as supported by information maintained and provided by health care providers.  We collect claim and encounter data from providers and generally rely on providers to appropriately code their submissions and document their medical records.  Medicare Advantage plans and PDPs receive increased premiums for members who have certain medical conditions identified with specific health condition codes.  Federal regulators review and audit the providers’ medical records and related health condition codes that determine the members’ health status and the resulting premium payments to us.  CMS has instituted risk adjustment data validation (“RADV”) audits of various Medicare Advantage plans, including two of Aetna’s contracts for the 2007 contract year.  Although these two audits are ongoing, we do not believe that they will have a material impact on our operating results, financial position or cash flows.

We believe that the Office of the Inspector General (the “OIG”) also is auditing risk adjustment data, and we expect CMS and the OIG to continue auditing risk adjustment data for the 2007 contract year and beyond.  Aetna and other Medicare Advantage organizations have provided comments to CMS in response to CMS’s December 2010 proposed RADV sampling and payment error calculation methodology by which CMS proposes to calculate and extrapolate RADV audit payment error rates for, and determine premium refunds payable by, Medicare Advantage plans.  Our concerns with CMS’s proposed methodology include the fact that the proposed methodology does not take into account the “error rate” in the original Medicare fee-for-service data that was used to develop the risk adjustment system and that retroactive audit and payment adjustments undermine the actuarial soundness of Medicare Advantage bids.  CMS has indicated that it may make retroactive contract-level premium payment adjustments based on the results of these RADV audits, which could occur as early as 2011.  CMS’s premium adjustments could be implemented prior to our, or other Medicare Advantage plans, having an opportunity to appeal the audit or payment error calculation results or methodology.  We are unable to predict the ultimate outcome of CMS’s final RADV audit methodology, other audits for the 2007 contract year or subsequent contract years, the amounts of any retroactive refunds of, or prospective adjustments to, premium payments made to us, or whether any audit findings would cause a change to our method of estimating future premium revenue in bid submissions to CMS for the current or future contract years or compromise premium assumptions made in our bids for prior contract years.  Any premium refunds or adjustments resulting from regulatory audits, including those resulting from CMS’s selection of its final RADV audit methodology, whether as a result of RADV or other audits by CMS or OIG or otherwise, could be material and could adversely affect our operating results, financial position and cash flows.

Other Litigation and Regulatory Proceedings

We are involved in numerous other lawsuits arising, for the most part, in the ordinary course of our business operations, including employment litigation and claims of bad faith, medical malpractice, non-compliance with state and federal regulatory regimes, marketing misconduct, failure to timely or appropriately pay medical and/or group insurance claims (including post-payment audit and collection practices), rescission of insurance coverage, improper disclosure of personal information, patent infringement and other intellectual property litigation and other litigation in our Health Care and Group Insurance businesses.  Some of these other lawsuits are or are purported to be class actions.  We intend to vigorously defend ourselves against the claims brought in these matters.

In addition, our operations, current and past business practices, current and past contracts, and accounts and other books and records are subject to routine, regular and special investigations, audits, examinations and reviews by, and from time to time we receive subpoenas and other requests for information from, CMS, various state insurance and health care regulatory authorities, state attorneys general, the Center for Consumer Information and Insurance Oversight, the Office of the Inspector General, the Office of Personnel Management, committees, subcommittees and members of the U.S. Congress, the U.S. Department of Justice, U.S. attorneys and other state and federal governmental authorities.  These government actions include inquiries by, and testimony before, certain members, committees and subcommittees of the U.S. Congress regarding certain of our current and past business practices, including our overall claims processing and payment practices, our business practices with respect to our small group products, student health products or individual customers (such as market withdrawals, rating information, premium increases and medical benefit ratios), executive compensation matters and travel and entertainment expenses, as well

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as the investigations by, and subpoenas and requests from, attorneys general and others described above under “Out-of-Network Benefit Proceedings.”  There also continues to be heightened review by regulatory authorities of and increased litigation regarding the health and related benefits industry’s business and reporting practices, including premium rate increases, utilization management, complaint and grievance processing, information privacy, provider network structure (including the use of performance-based networks), delegated arrangements, rescission of insurance coverage, limited benefit health products, student health products, pharmacy benefit management practices and claim payment practices (including payments to out-of-network providers and payments on life insurance policies).  As a leading national health and related benefits company, we regularly are the subject of such government actions.  These government actions may prevent or delay us from implementing planned premium rate increases and may result, and have resulted, in restrictions on our business, changes to or clarifications of our business practices, retroactive adjustments to premiums, refunds or other payments to members, beneficiaries or states, assessments of damages, civil or criminal fines or penalties, or other sanctions, including the possible loss of licensure or suspension or exclusion from participation in government programs, such as the intermediate sanctions previously imposed on us by CMS that are described above under “CMS Actions.”

Estimating the probable losses or a range of probable losses resulting from litigation, government actions and other legal proceedings is inherently difficult and requires an extensive degree of judgment, particularly where the matters involve indeterminate claims for monetary damages, may involve fines, penalties or punitive damages that are discretionary in amount, involve a large number of claimants or regulatory authorities, represent a change in regulatory policy, present novel legal theories, are in the early stages of the proceedings, are subject to appeal or could result in a change in business practices.  In addition, because most legal proceedings are resolved over long periods of time, potential losses are subject to change due to, among other things, new developments, changes in litigation strategy, the outcome of intermediate procedural and substantive rulings and other parties’ settlement posture and their evaluation of the strength or weakness of their case against us.  Except as specifically noted above under “CMS Actions” with respect to the two ongoing RADV audits for the 2007 contract year, we are currently unable to predict the ultimate outcome of, or reasonably estimate the losses or a range of losses resulting from, the matters described above, and it is reasonably possible that their outcome could be material to us.

15. Segment Information

Our operations are conducted in three business segments:  Health Care, Group Insurance and Large Case Pensions.  Our Corporate Financing segment is not a business segment; it is added to our business segments in order to reconcile to our consolidated results.  The Corporate Financing segment includes interest expense on our outstanding debt and the financing components of our pension and OPEB plan expense (the service cost components of this expense are allocated to our business segments).

Summarized financial information of our segments for the three and six months ended June 30, 2011 and 2010 was as follows:

	Health		Group		Large Case		Corporate			Total
(Millions)	Care		Insurance		Pensions		Financing			Company
Three months ended June 30, 2011
Revenue from external customers	$	7,602.6	$	431.2	$	47.9	$	-		$	8,081.7
Operating earnings (loss) (1)		512.9		44.4		6.2		(40.7	)		522.8
Three months ended June 30, 2010
Revenue from external customers	$	7,759.4	$	450.4	$	38.9	$	-		$	8,248.7
Operating earnings (loss) (1)		467.4		44.4		6.1		(67.7	)		450.2
Six months ended June 30, 2011
Revenue from external customers	$	15,223.2	$	861.5	$	92.5	$	-		$	16,177.2
Operating earnings (loss) (1)		1,068.2		87.3		12.0		(84.5	)		1,083.0
Six months ended June 30, 2010
Revenue from external customers	$	15,524.8	$	909.3	$	84.2	$	-		$	16,518.3
Operating earnings (loss) (1)		927.5		72.9		15.8		(135.4	)		880.8

(1) Operating earnings (loss) excludes net realized capital gains or losses and the other item described in the reconciliation on page 26.

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A reconciliation of operating earnings to net income for the three and six months ended June 30, 2011 and 2010 was as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Operating earnings	$	522.8	$	450.2	$	1,083.0	$	880.8
Litigation-related insurance proceeds (1)		-		13.0		-		58.5
Net realized capital gains		13.9		27.8		39.7		114.3
Net income	$	536.7	$	491.0	$	1,122.7	$	1,053.6

(1) Following a Pennsylvania Supreme Court ruling in June 2009, we recorded litigation-related insurance proceeds of $13.0 million ($20.0 million pretax) and $58.5 million ($90.0 million pretax), respectively, for the three and six months ended June 30, 2010, respectively, from our liability insurers related to certain litigation we settled in 2003.  We excluded this item and net realized capital gains from our operating earnings because we believe they neither relate to the ordinary course of our business nor reflect our underlying business performance.

16. Reinsurance

In April 2011, we entered into  three-year reinsurance agreements with Vitality Re II Limited, an unrelated insurer.  These agreements allow us to reduce our required statutory capital and provide an aggregate of $150 million of collateralized excess of loss reinsurance coverage on a portion of Aetna’s group Commercial Insured Health Care business.

17. Discontinued Products

Prior to 1993, we sold single-premium annuities (“SPAs”) and guaranteed investment contracts (“GICs”), primarily to employer sponsored pension plans.  In 1993, we discontinued selling these products to Large Case Pensions customers, and now we refer to these products as discontinued products.

We discontinued selling these products because they were generating losses for us, and we projected that they would continue to generate losses over their life (which is currently greater than 30 years for SPAs and less than 5 years for GICs); so we established a reserve for anticipated future losses at the time of discontinuance.  This reserve represents the present value (at the risk-free rate of return at the time of discontinuance, consistent with the duration of the liabilities) of the difference between the expected cash flows from the assets supporting these products and the cash flows expected to be required to meet the obligations of the outstanding contracts.  Because we projected anticipated cash shortfalls in our discontinued products, at the time of discontinuance we established a receivable from Large Case Pensions’ continuing products (which is eliminated in consolidation).

Key assumptions in setting this reserve include future investment results, payments to retirees, mortality and retirement rates and the cost of asset management and customer service.  In 1997, we began the use of a bond default assumption to reflect historical default experience.  In 1995, we modified the mortality tables used in order to reflect a more up-to-date 1994 Uninsured Pensioner’s Mortality table.  Other than these changes, since 1993 there have been no significant changes to the assumptions underlying the reserve.

We review the adequacy of this reserve quarterly based on actual experience.  As long as our expectation of future losses remains consistent with prior projections, the results of the discontinued products are applied to the reserve and do not affect net income.  However, if actual or expected future losses are greater than we currently estimate, we may increase the reserve, which could adversely impact net income.  If actual or expected future losses are less than we currently estimate, we may decrease the reserve, which could favorably impact net income.  The current reserve reflects management’s best estimate of anticipated future losses.  The reserve for anticipated future losses is included in future policy benefits on our balance sheet.

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The activity in the reserve for anticipated future losses on discontinued products for the six months ended June 30, 2011 and 2010 was as follows (pretax):

(Millions)	2011		2010
Reserve, beginning of period	$	884.8	$	789.2
Operating income (loss)		1.5		(7.4	)
Net realized capital gains		19.7		66.9
Reserve, end of period	$	906.0	$	848.7

During the six months ended June 30, 2011, our discontinued products reflected net realized capital gains primarily attributable to gains from the sale of debt securities partially offset by losses from derivative transactions. We evaluated the operating income in 2011 against our expectations of future cash flows assumed in estimating the reserve and concluded that no adjustment to the reserve is required at June 30, 2011.

Assets and liabilities supporting discontinued products at June 30, 2011 and December 31, 2010 were as follows: (1)

(Millions)	2011		2010
Assets:
Debt and equity securities available for sale	$	2,543.3	$	2,610.3
Mortgage loans		466.3		498.8
Other investments		658.7		603.2
Total investments		3,668.3		3,712.3
Other assets		82.7		90.4
Collateral received under securities loan agreements		13.7		35.1
Current and deferred income taxes		36.1		20.7
Receivable from continuing products (2)		507.5		492.4
Total assets	$	4,308.3	$	4,350.9
Liabilities:
Future policy benefits	$	3,080.0	$	3,162.2
Policyholders' funds		9.1		10.2
Reserve for anticipated future losses on discontinued products		906.0		884.8
Collateral payable under securities loan agreements		13.7		35.1
Other liabilities (3)		299.5		258.6
Total liabilities	$	4,308.3	$	4,350.9

(1)	Assets supporting the discontinued products are distinguished from assets supporting continuing products.
(2)	The receivable from continuing products is eliminated in consolidation.
(3)	Net unrealized capital gains on the available-for-sale debt securities are included in other liabilities and are not reflected in consolidated shareholders’ equity.

The distributions on our discontinued products consisted of scheduled contract maturities, settlements and benefit payments of $105 million and $209 million for the three and six months ended June 30, 2011, respectively, and $107 million and $214 million for the three and six months ended June 30, 2010, respectively.  There were no participant-directed withdrawals of our discontinued products during each of the three and six months ended June 30, 2011 or 2010.  Cash required to fund these distributions was provided by earnings and scheduled payments on, and sales of, invested assets.

18. Subsequent Event

In July 2011, we entered into an agreement to acquire PayFlex Holdings, Inc., one of the nation’s largest independent account-based health plan administrators, for approximately $202 million.  We expect to finance this transaction using available resources.  

In July 2011, we offered a Voluntary Early Retirement Program to eligible employees.

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Report of Independent Registered Public Accounting Firm

The Board of Directors and Shareholders

Aetna Inc.:

We have reviewed the consolidated balance sheet of Aetna Inc. and subsidiaries as of June 30, 2011, the related consolidated statements of income for the three-month and six-month periods ended June 30, 2011 and 2010, and the related consolidated statements of shareholders’ equity and cash flows for the six-month periods ended June 30, 2011 and 2010. These consolidated financial statements are the responsibility of the Company’s management.

We conducted our review in accordance with the standards of the Public Company Accounting Oversight Board (United States). A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the Public Company Accounting Oversight Board (United States), the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

Based on our review, we are not aware of any material modifications that should be made to the consolidated financial statements referred to above for them to be in conformity with U.S. generally accepted accounting principles.

We have previously audited, in accordance with standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheet of Aetna Inc. and subsidiaries as of December 31, 2010, and the related consolidated statements of income, shareholders’ equity, and cash flows for the year then ended (not presented herein); and in our report dated February 25, 2011, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying consolidated balance sheet as of December 31, 2010, is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

/s/ KPMG LLP

Hartford, Connecticut

July 27, 2011

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

OVERVIEW

We are one of the nation’s leading diversified health care benefits companies, serving approximately 36.5 million people with information and resources to help them make better informed decisions about their health care.  We offer a broad range of traditional and consumer-directed health insurance products and related services, including medical, pharmacy, dental, behavioral health, group life and disability plans, medical management capabilities, Medicaid health care management services and health information exchange technology services.  Our customers include employer groups, individuals, college students, part-time and hourly workers, health plans, governmental units, government-sponsored plans, labor groups and expatriates.  Our operations are conducted in three business segments:  Health Care, Group Insurance and Large Case Pensions.

The following MD&A provides a review of our financial condition at June 30, 2011 and December 31, 2010 and operating results for the three and six months ended June 30, 2011 and 2010.  This Overview should be read in conjunction with the entire MD&A, which contains detailed information that is important to understanding our operating results and financial condition, the consolidated financial statements and other data presented in this Quarterly Report on Form 10-Q as well as the MD&A contained in our 2010 Annual Report on Form 10-K (the “2010 Annual Report”).  This Overview is qualified in its entirety by the full MD&A.

Summarized Results for the Three and Six Months Ended June 30, 2011 and 2010:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Revenue:
Health Care	$	7,706.4	$	7,886.7	$	15,449.8	$	15,805.3
Group Insurance		503.9		526.5		1,014.8		1,082.6
Large Case Pensions		134.1		132.6		267.6		279.4
Total revenue		8,344.4		8,545.8		16,732.2		17,167.3
Net income		536.7		491.0		1,122.7		1,053.6
Operating earnings: (1)
Health Care		512.9		467.4		1,068.2		927.5
Group Insurance		44.4		44.4		87.3		72.9
Large Case Pensions		6.2		6.1		12.0		15.8
Cash flows from operations						896.5		754.8

 (1) Our discussion of operating results for our reportable business segments is based on operating earnings, which is a non-GAAP measure of net income (the term “GAAP” refers to U.S. generally accepted accounting principles).  Refer to “Segment Results and Use of Non-GAAP Measures” in this document beginning on page 31 for a discussion of non-GAAP measures.  Refer to pages 32, 35 and 36 for a reconciliation of operating earnings to net income for Health Care, Group Insurance and Large Case Pensions, respectively.

The total of our business segment operating earnings improved for the three and six months ended June 30, 2011 when compared to the corresponding periods in 2010 primarily due to higher Commercial underwriting margins in the Health Care segment, partially offset by the effect of lower Commercial Insured membership in 2011.  Our underwriting margins reflect approximately $188 million pretax and $199 million pretax of favorable development of prior period health care cost estimates for the three months ended June 30, 2011 and 2010, respectively.

Total revenue in our Health Care segment declined during the three and six months ended June 30, 2011 when compared to the corresponding periods in 2010 primarily as a result of lower Commercial Insured membership in 2011 as well as a decline due to changes in the customer market, product and geographic mix of business partially offset by premium rate increases.

At June 30, 2011, we served approximately 18.2 million medical members (consisting of approximately 31% Insured members and 69% ASC members), 13.8 million dental members and 8.8 million pharmacy benefit management services members.  Membership at June 30, 2011 included approximately 523 thousand, 392 thousand and 292 thousand medical, dental and pharmacy benefit management services members, respectively, from the Prodigy Health

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Group ("Prodigy") acquisition on June 28, 2011.  At June 30, 2010, we served approximately 18.6 million medical members (consisting of approximately 32% Insured members and 68% ASC members), 13.9 million dental members and 9.7 million pharmacy benefit management services members.

We continued to generate strong cash flows from operations in 2011 and 2010, generating $1.0 billion and $890 million of cash flows from operations in our Health Care and Group Insurance businesses during the six months ended June 30, 2011 and 2010, respectively.  During 2011, these cash flows funded ordinary course operating activities, two acquisitions at an aggregate purchase price of $1.1 billion, and the repayment of the entire $450 million aggregate principal amount of our 7.875% senior notes due March 2011.  Additionally, we repurchased approximately 18 million and 15 million shares of common stock under our share repurchase programs at a cost of approximately $735 million and $481 million during the six months ended June 30, 2011 and 2010, respectively.  Refer to “Liquidity and Capital Resources” beginning on page 39 and Note 11 of Condensed Notes to Consolidated Financial Statements on page 21 for additional information.

During 2011, we issued $500 million aggregate principal amount of 4.125% senior notes due in 2021 and used the majority of the proceeds to repay the $450 million aggregate principal amount of our 5.75% senior notes due June 2011.  Refer to “Liquidity and Capital Resources” beginning on page 39 and Note 11 of Condensed Notes to Consolidated Financial Statements on page 21 for additional information.

Acquisitions

PayFlex Holdings, Inc.

In July 2011, we entered into an agreement to acquire PayFlex Holdings, Inc., one of the nation’s largest independent account-based health plan administrators, for approximately $202 million.  We expect to finance this transaction using available resources.  

Genworth Financial Inc.’s Medicare Supplement Business and Related Blocks of In-Force Business

In June 2011, we entered into an agreement with Genworth Financial, Inc. (“Genworth”) to acquire Genworth’s Medicare Supplement business and related blocks of in-force business for approximately $290 million.  We expect to finance this transaction using available resources.

Prodigy Health Group

In June 2011, we acquired Prodigy, a third party administrator of self-funded health care plans, for approximately $600 million using available resources.

Medicity Inc.

In January 2011, we acquired Medicity Inc. (“Medicity”), a health information exchange company, for approximately $500 million using available resources.

Refer to Note 3 and Note 18 of Condensed Notes to Consolidated Financial Statements beginning on pages 6 and 27, respectively, for additional information.

Voluntary Early Retirement Program

In July 2011, we offered a Voluntary Early Retirement Program (the “Program”) to eligible employees.  The Company expects to incur a one-time charge associated with the Program during the third quarter of 2011.

Medicare Update

On June 13, 2011, the Centers for Medicare & Medicaid Services (“CMS”) lifted the intermediate sanctions it had previously imposed on us that required us to suspend the enrollment of and marketing to new members of all Aetna Medicare Advantage and Standalone Prescription Drug Plan (“PDP”) contracts.  The sanctions related to our compliance with certain Medicare Part D requirements.  We have resumed marketing our Medicare Advantage and PDP products and are enrolling beneficiaries with effective dates on and after July 1, 2011.  CMS still is not assigning any new low income subsidy members to our PDPs at this time.  However, low income subsidy members can make their own choice to enroll in Aetna products during the upcoming annual enrollment period.  As a result of these sanctions, our 2011 Medicare membership and operating results have been adversely affected because we did not participate in the 2010 open enrollment for individual 2011 Medicare plans, which occurred between November 15,

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2010 and December 31, 2010.  We continue to cooperate fully with CMS to address residual matters identified in connection with the sanction review.

Management Update

On February 25, 2011, our Board of Directors (the “Board”) elected Mark T. Bertolini, Chairman of the Board and Chairman of the Board’s Executive Committee, each effective April 8, 2011, upon the retirement of Ronald A. Williams, our previous executive Chairman.

Health Care Reform Legislation

In March 2010, President Obama signed into law the Patient Protection and Affordable Care Act and the Health Care and Education Reconciliation Act of 2010 (collectively, “Health Care Reform”), which makes broad-based changes to the U.S. health care system which could significantly affect the U.S. economy and will significantly impact our business operations and financial results, including our pricing and medical benefit ratios.  Health Care Reform presents us with new business opportunities, but also with new financial and other challenges.  It is reasonably possible that Health Care Reform, in the aggregate, could have a material adverse effect on our business operations and financial results.

Components of the legislation will be phased in over the next seven years.  We are and will continue to be required to dedicate material resources and incur material expenses during that time to implement and comply with Health Care Reform as well as state-level health care reform.  While the federal government has begun to issue regulations implementing Health Care Reform, many significant parts of the legislation, including health insurance exchanges and the implementation of minimum medical loss ratios (“MLRs”), require further guidance and clarification both at the federal level and in the form of regulations and actions by state legislatures to implement the law.  As a result, many of the impacts of Health Care Reform will not be known for several years.  Pending efforts in the U.S. Congress to repeal, amend or restrict funding for various aspects of Health Care Reform and pending litigation challenging the constitutionality of Health Care Reform create additional uncertainty about the ultimate impact of the legislation.

For additional information on Health Care Reform, refer to "Regulatory Environment" and "Forward-Looking Information/Risk Factors" beginning on page 41 and “MD&A - Overview – Health Care Reform Legislation”, “Regulatory Environment” and “Forward-Looking Information/Risk Factors” in our 2010 Annual Report.

Segment Results and Use of Non-GAAP Measures in this Document

The following discussion of operating results is presented based on our reportable segments in accordance with the accounting guidance for segment reporting and consistent with our segment disclosure included in Note 15 of Condensed Notes to Consolidated Financial Statements beginning on page 25.  Our operations are conducted in three business segments: Health Care, Group Insurance and Large Case Pensions.  Our Corporate Financing segment is not a business segment; it is added to our business segments to reconcile our consolidated results.  The Corporate Financing segment includes interest expense on our outstanding debt and the financing components of our pension and other postretirement benefit plans (“OPEB”) expense (the service cost and prior service cost components of this expense are allocated to our business segments).  Effective December 31, 2010, our employees no longer earn future pension service credits in our tax-qualified defined benefit pension plan (the “Aetna Pension Plan”).  The Aetna Pension Plan will continue to operate and account balances will continue to earn annual interest credits.  The decrease in our pension cost for the three and six months ended June 30, 2011 compared to the corresponding periods in 2010 was caused by this freezing of the Aetna Pension Plan.  We expect our future pension expense to continue to be lower than 2010.  Refer to Note 10 of Condensed Notes to Consolidated Financial Statements on page 20.

Our discussion of our operating results is based on operating earnings, which is the measure reported to our Chief Executive Officer for purposes of assessing financial performance and making operating decisions, such as allocating resources to each segment.  Operating earnings exclude net realized capital gains or losses as well as other items, if any, from net income reported in accordance with GAAP.  We believe excluding realized capital gains or losses from net income to arrive at operating earnings provides more meaningful information about our underlying business performance.  Net realized capital gains and losses arise from various types of transactions, primarily in the course of managing a portfolio of assets that support the payment of liabilities; however, these transactions do not directly relate to the underwriting or servicing of products for our customers and are not directly related to the core performance of our business operations.  We also may exclude other items that do not relate to the ordinary course of our business from net income to arrive at operating earnings.  In each segment discussion in this MD&A, we provide a table that reconciles operating earnings to net income.  Each table details the net realized capital gains or losses and any other

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items excluded from net income, and the footnotes to each table describe the nature of each other item and why we believe it is appropriate to exclude that item from net income.

HEALTH CARE

Health Care consists of medical, pharmacy benefits management, dental, behavioral health and vision plans offered on both an Insured basis and an ASC basis.  Medical products include point-of-service (“POS”), preferred provider organization (“PPO”), health maintenance organization (“HMO”) and indemnity benefit plans.  Medical products also include health savings accounts and Aetna HealthFund®, consumer-directed health plans that combine traditional POS or PPO and/or dental coverage, subject to a deductible, with an accumulating benefit account.  We also offer Medicare and Medicaid products and services, as well as specialty products, such as health information exchange technology services, medical management and data analytics services, medical stop loss insurance and products that provide access to our provider networks in select markets.  We separately track premiums and health care costs for Medicare and Medicaid products; all other medical, dental and other Health Care products are referred to as Commercial.

Operating Summary for the Three and Six Months Ended June 30, 2011 and 2010:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Premiums:
Commercial	$	5,031.4	$	5,148.4	$	10,045.0	$	10,291.8
Medicare		1,358.3		1,507.2		2,767.1		3,026.5
Medicaid		343.7		259.6		671.9		492.0
Total premiums		6,733.4		6,915.2		13,484.0		13,810.3
Fees and other revenue		869.2		844.2		1,739.2		1,714.5
Net investment income		88.8		104.9		177.9		212.7
Net realized capital gains		15.0		22.4		48.7		67.8
Total revenue		7,706.4		7,886.7		15,449.8		15,805.3
Health care costs		5,366.8		5,658.6		10,714.8		11,349.6
Operating expenses:
Selling expenses		250.9		282.8		522.4		581.0
General and administrative expenses		1,253.8		1,144.1		2,458.3		2,227.5
Total operating expenses		1,504.7		1,426.9		2,980.7		2,808.5
Amortization of other acquired intangible assets		24.5		22.5		49.1		45.2
Total benefits and expenses		6,896.0		7,108.0		13,744.6		14,203.3
Income before income taxes		810.4		778.7		1,705.2		1,602.0
Income taxes		287.8		284.1		605.4		545.5
Net income	$	522.6	$	494.6	$	1,099.8	$	1,056.5

The table presented below reconciles net income to operating earnings for the three and six months ended June 30, 2011 and 2010:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(Millions)	2011			2010			2011			2010
Net income	$	522.6		$	494.6		$	1,099.8		$	1,056.5
Litigation-related insurance proceeds (1)		-			(13.0	)		-			(58.5	)
Net realized capital gains		(9.7	)		(14.2	)		(31.6	)		(70.5	)
Operating earnings	$	512.9		$	467.4		$	1,068.2		$	927.5

(1) Following a Pennsylvania Supreme Court ruling in June 2009, we recorded litigation-related insurance proceeds of $13.0 million ($20.0 million pretax) and $58.5 million ($90.0 million pretax) for the three and six months ended June 30, 2010, respectively.  We excluded this item and net realized capital gains from our operating earnings because we believe they neither relate to the ordinary course of our business nor reflect our underlying business performance.

Operating earnings for the three and six months ended June 30, 2011 were higher than the corresponding periods in 2010, primarily due to higher Commercial underwriting margins from improved underlying performance, partially offset by the effect of lower Commercial Insured membership in 2011.  Included in these amounts are approximately 
 

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$121 million ($188 million pretax) and $128 million ($199 million pretax) of favorable development of prior period health care costs estimates for the three months ended June 30, 2011 and 2010, respectively.

We calculate our medical benefit ratio (“MBR”) by dividing health care costs by premiums.  For the three and six months ended June 30, 2011 and 2010, our MBRs by product were as follows:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2011			2010			2011			2010
Commercial		77.9	%		80.1	%		77.4	%		80.6	%
Medicare		84.6	%		86.4	%		84.8	%		86.7	%
Medicaid		87.2	%		89.2	%		87.8	%		87.6	%
Total		79.7	%		81.8	%		79.5	%		82.2	%

Refer to our discussion of Commercial and Medicare results below for an explanation of the changes in our MBRs.

Commercial results reflect higher underwriting margins and lower Insured membership in 2011 compared to 2010.

Commercial premiums decreased approximately $117 million and $247 million for the three and six months ended June 30, 2011, respectively, when compared to the corresponding periods in 2010, primarily due to lower Commercial Insured membership in 2011 as well as a decline due to changes in the customer market, product and geographic mix of business, partially offset by premium rate increases.

Our Commercial MBRs were 77.9% and 77.4% for the three and six months ended June 30, 2011, respectively, compared to 80.1% and 80.6% for the corresponding periods in 2010.  Included in these amounts were approximately $167 million and $160 million of favorable development of prior period health care cost estimates for the three months ended June 30, 2011 and 2010, respectively.  The favorable development of prior-period Commercial health care cost estimates for the three months ended June 30, 2011 was primarily caused by first quarter 2011 medical cost trend emerging favorably due to lower than projected utilization of medical services.  The favorable development in the three months ended June 30, 2010 was primarily from health care costs incurred in the first quarter of 2010 and a result of flu costs and utilization of medical services that were lower than we anticipated in our first quarter 2010 reserve estimates including the impact of severe weather in the Northeast on utilization of medical services.  Excluding this development, the Commercial MBR remains lower in 2011 than 2010, reflecting a percentage increase in our per member health care premiums that exceeded the percentage increase in per member health care costs.  Refer to “Critical Accounting Estimates – Health Care Costs Payable” in our 2010 Annual Report for a discussion of Health Care Costs Payable at December 31, 2010.

Medicare results for the three and six months ended June 30, 2011 reflect a decline in membership from the corresponding periods in 2010.

Medicare premiums decreased approximately $149 million and $259 million for the three and six months ended June 30, 2011, respectively, when compared to the corresponding periods in 2010, primarily attributable to a decrease in Medicare membership in 2011 due to the intermediate sanctions imposed on us by CMS, which did not allow us to participate in the 2010 open enrollment for individual 2011 Medicare plans.

Our Medicare MBRs were 84.6% and 84.8% for the three and six months ended June 30, 2011, respectively, compared to 86.4% and 86.7% for the corresponding periods in 2010.  Included in these amounts were approximately $18 million and $33 million of favorable development of prior period Medicare health care cost estimates for the three months ended June 30, 2011 and 2010, respectively.  Excluding this development, the Medicare MBR remains lower in 2011 than 2010, primarily reflecting changes in mix of business and lower than projected utilization of medical services.

Other Sources of Revenue

Health Care fees and other revenue for the three and six months ended June 30, 2011 increased $25 million compared to the corresponding periods in 2010 partially as a result of increased pharmacy revenues from our new relationship with CVS Caremark Corporation partially offset by membership related volume decreases.
 

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Net realized capital gains for the three and six months ended June 30, 2011 decreased by approximately $7 million and $19 million when compared to the corresponding periods in 2010.  These decreases primarily reflect lower net gains from the sale of debt securities partially offset by lower losses from derivative transactions in 2011.

Membership

Health Care’s membership at June 30, 2011 and 2010 was as follows:

	2011						2010
(Thousands)	Insured		ASC		Total		Insured		ASC		Total
Medical:
Commercial		4,784		11,810		16,594		5,133		11,887		17,020
Medicare		405		-		405		451		-		451
Medicaid		403		839		1,242		343		788		1,131
Total Medical Membership		5,592		12,649		18,241		5,927		12,675		18,602
Consumer-Directed Health Plans (1)						2,405						2,221
Dental:
Commercial		4,744		7,437		12,181		5,016		7,293		12,309
Medicare and Medicaid		167		468		635		155		450		605
Network Access  (2)		-		970		970		-		998		998
Total Dental Membership		4,911		8,875		13,786		5,171		8,741		13,912
Pharmacy:
Commercial						8,131						8,796
Medicare PDP (stand-alone)						432						637
Medicare Advantage PDP						188						234
Medicaid						27						30
Total Pharmacy Benefit Management Services						8,778						9,697

(1)	Represents members in consumer-directed health plans who also are included in Commercial medical membership above.
(2)	Represents members in products that allow these members access to our dental provider network for a nominal fee.

Total medical membership at June 30, 2011 decreased compared to June 30, 2010, reflecting a reduction in Commercial membership due primarily to lapsed customers exceeding new sales and in-group attrition as well as lower Medicare enrollment primarily due to CMS sanctions that was partially offset by approximately 523 thousand ASC members added by the Prodigy acquisition on June 28, 2011 and growth in Medicaid membership.

Total dental membership at June 30, 2011 decreased compared to June 30, 2010 primarily due to lapses exceeding new sales partially offset by approximately 392 thousand dental members added by the Prodigy acquisition on June 28, 2011.

Total pharmacy benefit management services membership decreased at June 30, 2011 compared to June 30, 2010 primarily due to a decrease in Commercial medical enrollment and a decline in Medicare PDP membership partially offset by approximately 292 thousand pharmacy members added by the Prodigy acquisition on June 28, 2011.

We project that Commercial ASC membership in large accounts will decline by approximately 500 thousand members in the first quarter of 2012 compared to year end 2011, with the decline partially offset by growth in our other businesses.

GROUP INSURANCE

Group Insurance primarily includes group life insurance products offered on an Insured basis, including basic and supplemental group term life, group universal life, supplemental or voluntary programs, and accidental death and dismemberment coverage.  Group Insurance also includes (i) group disability products offered to employers on both an Insured and an ASC basis, which consist primarily of short-term and long-term disability insurance (and products which combine both), (ii) absence management services offered to employers, which include short-term and long-term 

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disability administration and leave management, and (iii) long-term care products that were offered primarily on an Insured basis, which provide benefits covering the cost of care in private home settings, adult day care, assisted living or nursing facilities.  We no longer solicit or accept new long-term care customers.

Operating Summary for the Three and Six Months Ended June 30, 2011 and 2010:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Premiums:
Life	$	263.1	$	277.8	$	521.0	$	556.7
Disability		132.0		133.1		266.1		272.3
Long-term care		11.3		13.4		22.8		27.4
Total premiums		406.4		424.3		809.9		856.4
Fees and other revenue		24.8		26.1		51.6		52.9
Net investment income		68.3		66.6		142.4		137.6
Net realized capital gains		4.4		9.5		10.9		35.7
Total revenue		503.9		526.5		1,014.8		1,082.6
Current and future benefits		355.6		370.8		717.4		770.3
Operating expenses:
Selling expenses		16.3		19.7		35.5		43.0
General and administrative expenses		65.9		64.5		129.3		131.7
Total operating expenses		82.2		84.2		164.8		174.7
Amortization of other acquired intangible assets		1.1		1.7		2.8		3.4
Total benefits and expenses		438.9		456.7		885.0		948.4
Income before income taxes		65.0		69.8		129.8		134.2
Income taxes		17.7		19.3		35.4		30.3
Net income	$	47.3	$	50.5	$	94.4	$	103.9

The table presented below reconciles net income to operating earnings for the three and six months ended June 30, 2011 and 2010:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(Millions)	2011			2010			2011			2010
Net income	$	47.3		$	50.5		$	94.4		$	103.9
Net realized capital gains		(2.9	)		(6.1	)		(7.1	)		(31.0	)
Operating earnings	$	44.4		$	44.4		$	87.3		$	72.9

Operating earnings for the three months ended June 30, 2011 remained flat when compared to the corresponding period in 2010.  Operating earnings for the six months ended June 30, 2011 increased compared to the corresponding period in 2010, primarily due to higher underwriting margins from our disability products.

The group benefit ratio (which represents current and future benefits divided by premiums) was 87.5% and 88.6% for the three and six months ended June 30, 2011, respectively, compared to 87.4% and 89.9% for corresponding periods in 2010.

Net realized capital gains for the three and six months ended June 30, 2011 decreased by approximately $5 million and $25 million when compared to the corresponding periods in 2010.  These decreases primarily reflect lower net gains from the sale of debt securities partially offset by lower losses from derivative transactions in 2011.

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LARGE CASE PENSIONS

Large Case Pensions manages a variety of retirement products (including pension and annuity products) primarily for tax qualified pension plans.  These products provide a variety of funding and benefit payment distribution options and other services.  The Large Case Pensions segment includes certain discontinued products.

Operating Summary for the Three and Six Months Ended June 30, 2011 and 2010:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Premiums	$	45.4	$	36.2	$	87.2	$	78.8
Net investment income		84.2		82.2		173.6		178.6
Other revenue		2.5		2.7		5.3		5.4
Net realized capital gains		2.0		11.5		1.5		16.6
Total revenue		134.1		132.6		267.6		279.4
Current and future benefits		122.1		109.9		245.8		237.4
General and administrative expenses		3.6		3.6		7.3		5.4
Total benefits and expenses		125.7		113.5		253.1		242.8
Income before income taxes		8.4		19.1		14.5		36.6
Income taxes		.9		5.5		1.5		8.0
Net income	$	7.5	$	13.6	$	13.0	$	28.6

The table presented below reconciles net income to operating earnings for the three and six months ended June 30, 2011 and 2010:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(Millions)	2011			2010			2011			2010
Net income	$	7.5		$	13.6		$	13.0		$	28.6
Net realized capital gains		(1.3	)		(7.5	)		(1.0	)		(12.8	)
Operating earnings	$	6.2		$	6.1		$	12.0		$	15.8

Operating earnings in the six months ended June 30, 2011 declined compared to the corresponding period in 2010 due primarily to lower net investment income and the run-off nature of this segment.

Discontinued Products

Prior to 1993, we sold single-premium annuities (“SPAs”) and guaranteed investment contracts (“GICs”), primarily to employer sponsored pension plans.  In 1993, we discontinued selling these products to Large Case Pensions customers, and now we refer to these products as discontinued products.

We discontinued selling these products because they were generating losses for us, and we projected that they would continue to generate future losses over their life (which is currently greater than 30 years for SPAs and less than 5 years for GICs); so we established a reserve for anticipated future losses at the time of discontinuance.  We provide additional information on this reserve, including key assumptions and other important information, in Note 17 of Condensed Notes to Consolidated Financial Statements beginning on page 26.

The operating summary for Large Case Pensions above includes revenues and expenses related to our discontinued products, with the exception of net realized capital gains and losses which are recorded as part of current and future benefits.  Since we established a reserve for future losses on discontinued products, as long as our expected future losses remain consistent with prior projections, the operating results of our discontinued products are applied against the reserve and do not impact operating earnings or net income for Large Case Pensions.  However, if actual or expected future losses are greater than we currently estimate, we may increase the reserve, which could adversely impact net income.  If actual or expected future losses are less than we currently estimate, we may decrease the reserve, which could favorably impact net income.  In those cases, we disclose such adjustment separately in the

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operating summary.  Management reviews the adequacy of the discontinued products reserve quarterly.  The current reserve reflects management's best estimate of anticipated future losses.

The activity in the reserve for anticipated future losses on discontinued products for the six months ended June 30, 2011 and 2010 was as follows (pretax):

(Millions)	2011		2010
Reserve, beginning of period	$	884.8	$	789.2
Operating income (loss)		1.5		(7.4	)
Net realized capital gains		19.7		66.9
Reserve, end of period	$	906.0	$	848.7

During the six months ended June 30, 2011, our discontinued products reflected net realized capital gains primarily attributable to gains from the sale of debt securities partially offset by losses from derivative transactions.  We have evaluated the operating income in 2011 against our expectations of future cash flows assumed in estimating the reserve and concluded that no adjustment to the reserve is required at June 30, 2011.

INVESTMENTS

At June 30, 2011 and December 31, 2010 our investment portfolio consisted of the following:

	June 30,		December 31,
(Millions)	2011		2010
Debt and equity securities available for sale	$	17,150.3	$	16,961.6
Mortgage loans		1,576.3		1,509.8
Other investments		1,319.6		1,244.6
Total investments	$	20,046.2	$	19,716.0

The risks associated with investments supporting experience-rated pension and annuity products in our Large Case Pensions business are assumed by the contract holders and not by us (subject to, among other things, certain minimum guarantees).  Anticipated future losses associated with investments supporting discontinued fully-guaranteed Large Case Pensions products are provided for in the reserve for anticipated future losses on discontinued products.

As a result of the foregoing, investment risks associated with our experience-rated and discontinued products generally do not impact our operating results.  Investments supported the following products at June 30, 2011 and December 31, 2010:

	June 30,		December 31,
(Millions)	2011		2010
Experience-rated products	$	1,672.8	$	1,690.2
Discontinued products		3,668.3		3,712.3
Remaining products		14,705.1		14,313.5
Total investments	$	20,046.2	$	19,716.0

Assets supporting experience-rated products may be subject to contract holder or participant withdrawals.  Experience-rated contract holder and participant-directed withdrawals for the three and six months ended June 30, 2011 and 2010 were as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Scheduled contract maturities and benefit payments (1)	$	64.3	$	66.9	$	127.9	$	132.5
Contract holder withdrawals other than scheduled contract
maturities and benefit payments		7.3		1.6		7.8		4.8
Participant-directed withdrawals		.7		.7		2.4		1.2

(1) Includes payments made upon contract maturity and other amounts distributed in accordance with contract schedules.

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Debt and Equity Securities

The debt securities in our investment portfolio had an average credit quality rating of A at both June 30, 2011 and December 31, 2010, with approximately $4.5 billion at June 30, 2011 and $4.4 billion at December 31, 2010 rated AAA.  The debt securities that were rated below investment grade (that is, having a quality rating below BBB-/Baa3) were $1.3 billion at June 30, 2011 and $1.2 billion at December 31, 2010 (of which 20% and 17% at June 30, 2011 and December 31, 2010, respectively, supported our discontinued and experience-rated products).

At June 30, 2011 and December 31, 2010, we held approximately $684 million and $707 million, respectively, of municipal debt securities and $2 million on each date of structured product debt securities that were guaranteed by third parties, collectively representing approximately ­­­3% and 4%, respectively, of our total investments.  These securities had an average credit quality rating of A+ at both June 30, 2011 and December 31, 2010 with the guarantee.  Without the guarantee, the average credit quality rating of the municipal debt securities was A at both June 30, 2011 and December 31, 2010.  The structured product debt securities without guarantees are not rated by the rating agencies on a standalone basis.  We do not have any significant concentration of investments with third party guarantors (either direct or indirect).

We classify our debt and equity securities as available for sale, and carry them at fair value on our balance sheet.  Approximately 1% and 2% of our debt and equity securities at June 30, 2011 and December 31, 2010, respectively, were valued using inputs that reflect our own assumptions (categorized as Level 3 inputs in accordance with GAAP).  Refer to Note 9 of Condensed Notes to Consolidated Financial Statements beginning on page 15 for additional information on the methodologies and key assumptions we use to determine the fair value of investments.

At June 30, 2011 and December 31, 2010, our debt and equity securities had net unrealized capital gains of $1.1 billion and $985 million, respectively, of which $303 million and $301 million, respectively, related to our experience-rated and discontinued products.

Refer to Note 7 of Condensed Notes to Consolidated Financial Statements beginning on page 8 for details of net unrealized capital gains and losses by major security type, as well as details on our debt securities with unrealized capital losses at June 30, 2011 and December 31, 2010.  We regularly review our debt securities to determine if a decline in fair value below the carrying value is other-than-temporary.  If we determine a decline in fair value is other-than-temporary, we will write down the carrying value of the security.  The amount of the credit-related impairment is included in our operating results, and the non-credit component is included in other comprehensive income if we do not intend to sell the security.  Accounting for other-than-temporary-impairments ("OTTI") of our debt securities is considered a critical accounting estimate.  Refer to “Critical Accounting Estimates - Other-Than-Temporary Impairment of Debt Securities” in our 2010 Annual Report for more information.

Net Realized Capital Gains and Losses

Net realized capital gains were $14 million ($21 million pretax) and $40 million ($61 million pretax) for the three and six months ended June 30, 2011, respectively, and $28 million ($43 million pretax) and $114 million ($120 million pretax) for the corresponding periods in 2010, respectively.  Included in these amounts were $2 million and $5 million for the three and six months ended June 30, 2011, respectively, and $3 million and $17 million for the three and six months ended June 30, 2010, respectively, of OTTI losses on debt and equity securities.  We had no individual realized capital losses on debt or equity securities that materially impacted our operating results during the three and six months ended June 30, 2011 or 2010.

Mortgage Loans

Our mortgage loan portfolio (which is collateralized by commercial real estate) represented 8% of our total invested assets at both June 30, 2011 and December 31, 2010.  There were no material impairment reserves on these loans at June 30, 2011 or December 31, 2010.  Refer to Note 7 of Condensed Notes to Consolidated Financial Statements on page 8 for additional information on our mortgage loan portfolio.

Risk Management and Market-Sensitive Instruments

We manage interest rate risk by seeking to maintain a tight match between the durations of our assets and liabilities where appropriate.  We manage credit risk by seeking to maintain high average quality ratings and diversified sector exposure within our debt securities portfolio.  In connection with our investment and risk management objectives, we also use derivative financial instruments whose market value is at least partially determined by, among other things, levels of or changes in interest rates (short-term or long-term), duration, prepayment rates, equity markets or credit ratings/spreads.  Our use of these derivatives is generally limited to hedging risk and has principally consisted of using

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interest rate swap agreements, forward contracts, futures contracts and credit default swaps.  Additionally, from time to time, we receive warrants from our vendors.  These instruments, viewed separately, subject us to varying degrees of interest rate, equity price and credit risk.  However, when used for hedging, we expect these instruments to reduce overall risk.

We regularly evaluate our risk from market-sensitive instruments by examining, among other things, levels of or changes in interest rates (short-term or long-term), duration, prepayment rates, equity markets or credit ratings/spreads.  We also regularly evaluate the appropriateness of investments relative to our management-approved investment guidelines (and operate within those guidelines) and the business objectives of our portfolios.

On a quarterly basis, we review the impact of hypothetical net losses in our investment portfolio on our consolidated near-term financial position, operating results and cash flows assuming the occurrence of certain reasonably possible changes in near-term market rates and prices.  Based upon this analysis, there have been no material changes in our exposure to these risks since December 31, 2010.  Refer to the MD&A in our 2010 Annual Report for a more complete discussion of risk management and market-sensitive instruments.

LIQUIDITY AND CAPITAL RESOURCES

Cash Flows

We meet our operating cash requirements by maintaining liquidity in our investment portfolio, using overall cash flows from premiums, deposits and income received on investments, and issuing commercial paper from time to time.  We monitor the duration of our investment portfolio of highly marketable debt securities and mortgage loans, and execute purchases and sales of these investments with the objective of having adequate funds available to satisfy our maturing liabilities.  Overall cash flows are used primarily for claim and benefit payments, contract withdrawals, operating expenses, share repurchases and shareholder dividends.  We have a committed short-term borrowing capacity of $1.5 billion through our revolving credit facility.  During 2011, we also used our cash flows to acquire Prodigy and Medicity and to repay maturing long-term debt.

Presented below is a condensed statement of cash flows for the six months ended June 30, 2011 and 2010.  We present net cash flows used for operating activities and net cash flows provided by investing activities separately for our Large Case Pensions segment because changes in the insurance reserves for the Large Case Pensions segment (which are reported as cash used for operating activities) are funded from the sale of investments (which are reported as cash provided by investing activities).  Refer to the Consolidated Statements of Cash Flows on page 4 for additional information.

(Millions)	2011			2010
Cash flows from operating activities
Health Care and Group Insurance (including Corporate Financing)	$	1,035.9		$	889.8
Large Case Pensions		(139.4	)		(135.0	)
Net cash provided by operating activities		896.5			754.8
Cash flows from investing activities
Health Care and Group Insurance		(1,470.3	)		(197.9	)
Large Case Pensions		135.6			172.1
Net cash used for investing activities		(1,334.7	)		(25.8	)
Net cash used for financing activities		(518.9	)		(526.6	)
Net (decrease) increase in cash and cash equivalents	$	(957.1	)	$	202.4

Cash Flow Analysis

Cash flows provided by operating activities for Health Care and Group Insurance were approximately $1.0 billion for the six months ended June 30, 2011 and $890 million for the six months ended June 30, 2010.  The increase for the six months ended June 30, 2011 compared with the corresponding period in 2010 is primarily attributable to improved operating performance.

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During the six months ended June 30, 2011, we acquired Prodigy for approximately $600 million and Medicity for approximately $500 million, and repaid the entire $450 million aggregate principal amount of our 7.875% senior notes due March 2011, in each case using available resources.  We also issued $500 million of 4.125% senior notes due in 2021 and used the majority of the proceeds to repay the entire $450 million aggregate principal amount of our 5.75% senior notes due June 2011. Additionally, we repurchased approximately 18 million and 15 million shares of common stock at a cost of approximately $735 million and $481 million during the six months ended June 30, 2011 and 2010, respectively.  At June 30, 2011, the capacity remaining under our share repurchase programs was approximately $750 million.  Refer to Note 12 of the Condensed Notes to Consolidated Financial Statements on page 21 for more information on our share repurchases.

In February 2011, we announced that our Board increased our cash dividend to shareholders to $.15 per share and moved us to a quarterly dividend payment cycle.  Prior to February 2011, our policy had been to pay an annual dividend of $.04 per share.  During the six months ended June 30, 2011 our Board declared the following cash dividends:

	Dividend Amount			Stockholders of	Date Paid/	Total Dividends
Date Declared	Per Share			Record Date	To be Paid	(Millions)
February 3, 2011		$	.15	April 14, 2011	April 29, 2011	$	57.0
May 20, 2011			.15	July 14, 2011	July 29, 2011		56.8

Declaration and payment of future dividends is at the discretion of our Board and may be adjusted as business needs or market conditions change.

Other Liquidity Information

From time to time, we use short-term commercial paper borrowings to address timing differences between cash receipts and disbursements.  At June 30, 2011, we had approximately $550 million of commercial paper outstanding.  The maximum amount of commercial paper borrowings outstanding during the six months ended June 30, 2011 was $729 million.

Our committed short-term borrowing capacity consists of a $1.5 billion revolving credit facility which terminates in March 2013 (the “Facility”).  The Facility also provides for the issuance of letters of credit at our request, up to $200 million, which count as usage of the available commitments under the Facility.  The Facility permits the aggregate commitments under the Facility to be expanded to a maximum of $2.0 billion upon our agreement with one or more financial institutions. There were no amounts outstanding under the Facility at any time during the three or six months ended June 30, 2011.

Our debt to capital ratio (calculated as the sum of all short- and long-term debt outstanding (“total debt”) divided by the sum of shareholders’ equity plus total debt) was approximately 30% at June 30, 2011.  We continually monitor existing and alternative financing sources to support our capital and liquidity needs, including, but not limited to, debt issuance, preferred or common stock issuance, reinsurance and pledging or selling of assets.

Interest expense was $62 million and $128 million for the three and six months ended June 30, 2011, respectively, and $61 million and $122 million for the three and six months ended June 30, 2010, respectively.

Refer to Note 11 of Condensed Notes to Consolidated Financial Statements beginning on page 21 for additional information on our short-term and long-term debt.

Other Common Stock Transactions

On February 7, 2011, approximately .6 million performance stock units, 1.2 million market stock units and 1.0 million restricted stock units were granted to certain employees.  Refer to Note 12 of Condensed Notes to Consolidated Financial Statements on page 21 for additional information.

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CRITICAL ACCOUNTING ESTIMATES

Refer to “Critical Accounting Estimates” in our 2010 Annual Report for information on accounting policies that we consider critical in preparing our Consolidated Financial Statements.  These policies include significant estimates we make using information available at the time the estimates are made.  However, these estimates could change materially if different information or assumptions were used, and these estimates may not reflect the actual amounts of the final transactions that occur.

REGULATORY ENVIRONMENT

Except as set forth below, there were no material changes in the regulation of our business since December 31, 2010.  Refer to the "Regulatory Environment" section in our 2010 Annual Report for information on the regulation of our business.

·    Enhanced rate review and disclosure processes by states and the U.S. Department of Health and Human Services (“HHS”) are a key provision of Health Care Reform.  HHS has issued a final rule providing that states that have “effective review processes” will perform rate reviews, and HHS will perform reviews in all other states.  HHS has determined that a significant majority of states have an effective review process.  We are continuing to evaluate the impact of this and other key provisions of Health Care Reform (assuming they are implemented in their current form) to determine the impact that they will have on our business operations and financial results.  HHS’ final rule does not replace the current state rate approval process.  Instead it adds analysis and disclosure related to reasonableness of rate increases to that process, which may impact state approval decision-making and further affect our ability to price for the risk we assume on a timely basis.

·    In July 2011, HHS released proposed rules establishing a framework to assist states in setting up health insurance exchanges (“Exchanges”), which are scheduled to be operational in 2014.  HHS also released proposed rules governing state and federal reinsurance, risk adjustment and risk corridor programs designed to mitigate adverse selection and provide premium stability in individual and small group Exchanges.

·    All 50 states and the District of Columbia have held or are still holding regular legislative sessions in 2011.  In 2011 to date, state legislatures have focused on state budget deficits as well as preliminary Exchange design and implementation.  A limited number of states have passed Exchange laws, and a number of states have passed Exchange planning laws.  We expect additional state level legislation that impacts our business to be enacted in 2011.

·    New York recently notified insurers that it expects insurers to, and will be amending its regulations to require insurers to, regularly consult the U.S. Social Security Administration’s Death Master File or a similar database to determine if unclaimed death benefits may be payable under life insurance and similar products, to pay any such benefits and to make certain other business process changes.

FORWARD-LOOKING INFORMATION/RISK FACTORS

Certain information in this MD&A is forward-looking within the meaning of the Private Securities Litigation Reform Act of 1995.  Forward-looking statements are subject to uncertainties that are outside our control and could cause actual future results to differ materially from those statements.  You should not place undue reliance on forward-looking statements, and we disclaim any intention or obligation to update or revise forward-looking statements.

The following information supplements the Forward Looking Information/Risk Factors portion of our 2010 Annual Report.  You should read that section of our 2010 Annual Report and the information below carefully because each of them contains a discussion of important risk factors that could adversely affect our business as well as the market price for out common stock.

·    On June 13, 2011, the Centers for Medicare & Medicaid Services (“CMS”) lifted the intermediate sanctions it had previously imposed on us that required us to suspend the enrollment of and marketing to new members of all Aetna Medicare Advantage and Standalone Prescription Drug Plan (“PDP”) contracts.  The sanctions related to our compliance with certain Medicare Part D requirements.  We have resumed marketing our Medicare Advantage and PDP products and are enrolling beneficiaries with effective dates on and after July 1, 2011.  CMS still is not assigning any new low income subsidy members to our PDPs at this time.  However, low income subsidy members can make their own choice to enroll in Aetna products during the

Page 41

upcoming annual enrollment period.  As a result of these sanctions, our 2011 Medicare membership and operating results have been adversely affected because we did not participate in the 2010 open enrollment for individual 2011 Medicare plans, which occurred between November 15, 2010 and December 31, 2010.  We continue to cooperate fully with CMS to address residual matters identified in connection with the sanction review.

·   Our business activities are highly regulated.  New laws or regulations or changes in existing laws or regulations or their enforcement or application could adversely affect our business and profitability.  For example: New York recently notified insurers that it expects insurers to, and will be amending its regulations to require insurers to, regularly consult the U.S. Social Security Administration’s Death Master File or a similar database to determine if unclaimed death benefits may be payable under life insurance and similar products, to pay any such benefits and to make certain other business process changes.

This information should be read in conjunction with the more detailed description of risk factors that may be found in our reports filed with the U.S. Securities and Exchange Commission from time to time, including our 2010 Annual Report, quarterly reports on Form 10-Q and current reports on Form 8-K.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

We have no material changes in exposures to market risk since December 31, 2010.  Refer to the information contained in the “Risk Management and Market-Sensitive Instruments” section of the MD&A beginning on page 38 for a discussion of our exposures to market risk.

Item 4. Controls and Procedures

Disclosure Controls and Procedures

We maintain disclosure controls and procedures, which are designed to ensure that information that we are required to disclose in the reports we file or submit under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

An evaluation of the effectiveness of our disclosure controls and procedures as of June 30, 2011 was conducted under the supervision and with the participation of our Chief Executive Officer and Chief Financial Officer.  Based on that evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures as of June 30, 2011 were effective and designed to ensure that material information relating to Aetna Inc. and its consolidated subsidiaries would be made known to the Chief Executive Officer and Chief Financial Officer by others within those entities, particularly during the periods when periodic reports under the Exchange Act are being prepared.  Refer to the Certifications by our Chief Executive Officer and Chief Financial Officer filed as Exhibits 31.1 and 31.2 to this report.

Changes in Internal Control over Financial Reporting

There has been no change in our internal control over financial reporting, identified in connection with the evaluation of such control that occurred during our most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Page 42

Part II. Other Information

Item 1. Legal Proceedings

The information contained in Note 14 of Condensed Notes to Consolidated Financial Statements, beginning on page 22 is incorporated herein by reference.

Item 1A. Risk Factors

The information contained under the heading “Forward-Looking Information/Risk Factors” in the MD&A, beginning on page 41 is incorporated herein by reference.

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

The following table provides information about our monthly share repurchases, all of which were purchased as part of a publicly-announced program, for the three months ended June 30, 2011:

Issuer Purchases of Equity Securities
					Total Number of		Approximate Dollar
					Shares Purchased		Value of Shares
					as Part of Publicly		That May Yet Be
	Total Number of		Average Price		Announced		Purchased Under the
(Millions, except per share amounts)	Shares Purchased		Paid Per Share		Plans or Programs		Plans or Programs
April 1, 2011 - April 30, 2011		-	$	-		-	$	485.2
May 1, 2011 - May 31, 2011		5.5		43.22		5.5		998.3
June 1, 2011 - June 30, 2011		5.7		43.68		5.7		750.2
Total		11.2	$	43.45		11.2		N/A

On December 3, 2010 and May 20, 2011, our Board of Directors (our “Board”) authorized two share repurchase programs.  Each repurchase program authorized us to repurchase up to $750 million of our common stock.  During the three months ended June 30, 2011, we repurchased approximately 11 million shares of common stock at a cost of approximately $485 million (approximately $34 million of these repurchases were settled in early July).  At June 30, 2011, we had remaining authorization to repurchase an aggregate of up to approximately $750 million of common stock under those programs.

Page 43

Item 6. Exhibits

Exhibits to this Form 10-Q are as follows:

4	Instruments defining the rights of security holders, including indentures
4.1	Supplemental Indenture dated as of May 20, 2011 between Aetna Inc. and U.S. Bank National Association, as successor-in-interest to State Street Bank and Trust Company, as trustee, establishing and designating Aetna Inc.’s 4.125% Senior Notes due June 1, 2021, incorporated herein by reference to Exhibit 4.1 to Aetna Inc.’s Form 8-K filed on May 20, 2011.
10	Material Contracts
10.1	Amended Aetna Inc. 2010 Stock Incentive Plan, as amended May 20, 2011, incorporated herein by reference to Exhibit 10.1 to Aetna Inc.'s Form 8-K filed on May 23, 2011. *
10.2	Aetna Inc. 2011 Employee Stock Purchase Plan dated as of May 20, 2011, incorporated herein by reference to Exhibit 10.2 to Aetna Inc.'s Form 8-K filed on May 23, 2011. *
11	Statements re: computation of per share earnings
11.1	Computation of per share earnings is incorporated herein by reference to Note 4 of Condensed Notes to Consolidated Financial Statements, beginning on page 7 in this Form 10-Q.
12	Statements re: computation of ratios
12.1	Computation of ratio of earnings to fixed charges.
15	Letter re: unaudited interim financial information
15.1	Letter from KPMG LLP acknowledging awareness of the use of a report dated July 27, 2011 related to their review of interim financial information.
31	Rule 13a-14(a)/15d-14(a) Certifications
31.1	Certification.
31.2	Certification.
32	Section 1350 Certifications
32.1	Certification.
32.2	Certification.
101	XBRL Documents
101.INS	XBRL Instance Document.
101.SCH	XBRL Taxonomy Extension Schema.
101.CAL	XBRL Taxonomy Extension Calculation Linkbase.
101.DEF	XBRL Taxonomy Extension Definition Linkbase.
101.LAB	XBRL Taxonomy Extension Label Linkbase.
101.PRE	XBRL Taxonomy Extension Presentation Linkbase.
*	Management contract or compensatory plan or arrangement.

Page 44

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.

Aetna Inc.

Registrant

Date:  July 27, 2011	By    /s/ Rajan Parmeswar
	Rajan Parmeswar
	Vice President, Controller and
	Chief Accounting Officer

Page 45

INDEX TO EXHIBITS

Exhibit		Filing
Number	Description	Method

12		Statements re: computation of ratios
12.1		Computation of ratio of earnings to fixed charges.	Electronic
15		Letter re: unaudited interim financial information
15.1		Letter from KPMG LLP acknowledging awareness of the use of a report dated July 27, 2011 related to their review of interim financial information.	Electronic
31		Rule 13a-14(a)/15d-14(a) Certifications
31.1		Certification.	Electronic
31.2		Certification.	Electronic
32		Section 1350 Certifications
32.1		Certification.	Electronic
32.2		Certification.	Electronic
101	XBRL Documents
101.INS	XBRL Instance Document.		Electronic
101.SCH	XBRL Taxonomy Extension Schema.		Electronic
101.CAL	XBRL Taxonomy Extension Calculation Linkbase.		Electronic
101.DEF	XBRL Taxonomy Extension Definition Linkbase.		Electronic
101.LAB	XBRL Taxonomy Extension Label Linkbase.		Electronic
101.PRE	XBRL Taxonomy Extension Presentation Linkbase.		Electronic

Page 46

EX-12.1

Exhibit 12.1

Computation of Ratios

The computation of the ratio of earnings to fixed charges for the six months ended June 30, 2011 and the years ended December 31, 2010, 2009, 2008, 2007 and 2006 are as follows:

Six Months Ended				Years Ended December 31,
(Millions)	June 30, 2011			2010		2009		2008		2007		2006
Income from continuing operations before income taxes		$	1,719.5	$	2,644.2	$	1,901.2	$	2,174.2	$	2,796.4	$	2,586.6
Add back fixed charges			150.2		307.7		302.9		297.9		234.3		199.5
Income as adjusted ("earnings")		$	1,869.7	$	2,951.9	$	2,204.1	$	2,472.1	$	3,030.7	$	2,786.1
Fixed charges:
Interest expense		$	127.6	$	254.6	$	243.4	$	236.4	$	180.6	$	148.3
Portion of rents representative of interest factor			22.6		53.1		59.5		61.5		53.7		51.2
Total fixed charges		$	150.2	$	307.7	$	302.9	$	297.9	$	234.3	$	199.5
Ratio of earnings to fixed charges			12.45		9.59		7.28		8.30		12.94		13.97

EX-15.1

Exhibit 15.1

Aetna Inc.

Hartford, Connecticut

Re: Registration Statement Nos. 333-52124, 52122, 52120, 73052, 87722, 87726, 124619, 124620, 136176, 136177, 155961, 168497 and 168498

With respect to the subject registration statements, we acknowledge our awareness of the use therein of our report dated July 27, 2011 related to our review of interim financial information.

Pursuant to Rule 436 under the Securities Act of 1933 (the Act), such report is not considered part of a registration statement prepared or certified by an independent registered public accounting firm, or a report prepared or certified by an independent registered public accounting firm within the meaning of Sections 7 and 11 of the Act.

/s/ KPMG LLP

Hartford, Connecticut

July 27, 2011

EX-31.1

Exhibit 31.1

Certification

I, Mark T. Bertolini, certify that:

1.   I have reviewed this quarterly report on Form 10-Q of Aetna Inc.;

2.   Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.   Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.   The registrant’s other certifying 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 andpresented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)   Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.   The registrant’s other certifying officer(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:  July 27, 2011	/s/ Mark T. Bertolini
	Mark T. Bertolini
	Chairman, Chief Executive Officer and President

EX-31.2

Exhibit 31.2

Certification

I, Joseph M. Zubretsky, certify that:

1.   I have reviewed this quarterly report on Form 10-Q of Aetna Inc.;

2.   Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.   Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.   The registrant’s other certifying 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 andpresented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)   Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.   The registrant’s other certifying officer(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:  July 27, 2011	/s/ Joseph M. Zubretsky
	Joseph M. Zubretsky
	Senior Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

Certification

The certification set forth below is being submitted to the Securities and Exchange Commission in connection with the Quarterly Report on Form 10-Q of Aetna Inc. for the period ended June 30, 2011 (the “Report”) solely for the purpose of complying with Rule 13a-14(b) of the Securities Exchange Act of 1934 (the “Exchange Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code.

Mark T. Bertolini, Chairman, Chief Executive Officer and President of Aetna Inc., certifies that, to the best of his knowledge:

1.	the Report fully complies with the requirements of Section 13(a) of the Exchange Act; and
2.	the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Aetna Inc.

Date:  July 27, 2011	/s/ Mark T. Bertolini
	Mark T. Bertolini
	Chairman, Chief Executive Officer and President

EX-32.2

Exhibit 32.2

Certification

The certification set forth below is being submitted to the Securities and Exchange Commission in connection with the Quarterly Report on Form 10-Q of Aetna Inc. for the period ended June 30, 2011 (the “Report”) solely for the purpose of complying with Rule 13a-14(b) of the Securities Exchange Act of 1934 (the “Exchange Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code.

Joseph M. Zubretsky, Senior Executive Vice President and Chief Financial Officer of Aetna Inc., certifies that, to the best of his knowledge:

1.	the Report fully complies with the requirements of Section 13(a) of the Exchange Act; and
2.	the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Aetna Inc.

Date:  July 27, 2011	/s/ Joseph M. Zubretsky
	Joseph M. Zubretsky
	Senior Executive Vice President and Chief Financial Officer

XML



Document And Entity Information (USD $)	6 Months Ended
	Jun. 30, 2011
Entity Registrant Name	AETNA INC /PA/
Entity Central Index Key	0001122304
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float	$ 16,400,000,000
Entity Common Stock, Shares Outstanding	372,900,000
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2011

XML



Acquisitions

6 Months Ended

Jun. 30, 2011

Acquisition [Abstract]

Acquisition

3. Acquisitions

In June 2011, we entered into an agreement with Genworth Financial, Inc. (“Genworth”) to acquire Genworth's Medicare Supplement business and related blocks of in-force business for approximately $290 million.  We expect to finance the acquisition using available resources.  

In June 2011, we acquired Prodigy Health Group (“Prodigy”), a third party administrator of self-funded health care plans, for approximately $600 million using available resources.  We recorded goodwill related to this transaction of approximately $442 million, of which approximately $52 million will be tax deductible.  All of the goodwill related to this acquisition was assigned to our Health Care segment.  Refer to Note 6 on page 7 for additional information.

In January 2011, we acquired Medicity Inc. (“Medicity”), a health information exchange company, for approximately $500 million using available resources.  We recorded goodwill related to this transaction of approximately $394 million, a majority of which will not be tax deductible.  All of the goodwill related to this acquisition was assigned to our Health Care segment.  Refer to Note 6 on page 7 for additional information.

XML



Earnings Per Common Share

6 Months Ended

Jun. 30, 2011

Earnings Per Common Share [Abstract]

Earnings Per Common Share

4. Earnings Per Common Share

Basic earnings per share (“EPS”) is computed by dividing net income by the weighted average number of common shares outstanding during the reporting period.  Diluted EPS is computed in a similar manner, except that the weighted average number of common shares outstanding is adjusted for the dilutive effects of our outstanding stock awards, but only if the effect is dilutive.

The computations of basic and diluted EPS for the three and six months ended June 30, 2011 and 2010 are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions, except per common share data)	2011		2010		2011		2010
Net income	$	536.7	$	491.0	$	1,122.7	$	1,053.6
Weighted average shares used to compute basic EPS		379.2		423.0		381.3		427.2
Dilutive effect of outstanding stock-based compensation awards (1)		8.1		7.2		7.9		7.7
Weighted average shares used to compute diluted EPS		387.3		430.2		389.2		434.9
Basic EPS	$	1.42	$	1.16	$	2.94	$	2.47
Diluted EPS	$	1.39	$	1.14	$	2.88	$	2.42

(1) Stock based compensation awards are not included in the calculation of diluted EPS if the exercise price is greater than the average market price of Aetna common shares during the period.  Approximately 12.6 million and 12.8 million stock appreciation rights (with exercise prices ranging from $41.92 to $59.76 and $36.87 to $59.76) were not included in the calculation of diluted EPS for the three and six months ended June 30, 2011, respectively.  Stock options not included in the calculation of diluted EPS for the three and six months ended June 30, 2011 were not material.  Approximately 18.7 million and 18.8 million stock appreciation rights (with exercise prices ranging from $32.11 to $59.76), respectively, and 5.8 million stock options (with exercise prices ranging from $33.38 to $42.35) were not included in the calculation of diluted EPS for the three and six months ended June 30, 2010.

XML



Operating Expenses

6 Months Ended

Jun. 30, 2011

Operating expenses:

Operating Expenses

5. Operating Expenses

For the three and six months ended June 30, 2011 and 2010, selling expenses (which include broker commissions, the variable component of our internal sales force compensation and premium taxes) and general and administrative expenses were as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Selling expenses	$	267.2	$	302.5	$	557.9	$	624.0
General and administrative expenses:
Salaries and related benefits		786.8		762.9		1,550.6		1,530.7
Other general and administrative expenses (1)		537.7		492.7		1,046.7		920.6
Total general and administrative expenses		1,324.5		1,255.6		2,597.3		2,451.3
Total operating expenses	$	1,591.7	$	1,558.1	$	3,155.2	$	3,075.3

(1) Includes litigation-related insurance proceeds of $20.0 million and $90.0 million for the three and six months ended June 30, 2010, respectively.  Refer to the reconciliation of operating earnings to net income in Note 15 beginning on page 25 for additional information.

XML



Goodwill and Other Acquired Intangible Assets

6 Months Ended

Jun. 30, 2011

Goodwill and Other Acquired Intangible Assets [Abstract]

Goodwill and Other Acquired Intangible Assets

6. Goodwill and Other Acquired Intangible Assets

The increase in goodwill for the six months ended June 30, 2011 and 2010 is as follows:

(Millions)		2011	2010
Balance, beginning of the period	$	5,146.4	$            5,146.2
Goodwill acquired:
Prodigy (1)		441.7	-
Medicity (1)		394.3	-
Other		.6	(.5)
Balance, end of the period  (2)	$	5,983.0	$            5,145.7

(1)	Goodwill related to the acquisitions of Prodigy and Medicity is considered preliminary, pending the final allocation of the applicable purchase price.
(2)	At June 30, 2011 and 2010, $104 million of goodwill was assigned to the Group Insurance segment with the remaining balance assigned to the Health Care segment.

Other acquired intangible assets at June 30, 2011 and December 31, 2010 were comprised of the following:

				Accumulated				Amortization
(Millions)	Cost			Amortization		Net Balance		Period (Years)
June 30, 2011
Other acquired intangible assets:
Provider networks	$	703.2		$	413.8	$	289.4	12-25	(1)
Customer lists		660.8	(2)		293.7		367.1	4-10	(1)
Technology		114.9	(2)		29.9		85.0	3-10
Other		19.9	(2)		16.5		3.4	2-15
Definite-lived trademarks		46.9	(2)		11.8		35.1	2-15
Indefinite-lived trademarks		22.3			-		22.3
Total other acquired intangible assets	$	1,568.0		$	765.7	$	802.3
December 31, 2010
Other acquired intangible assets:
Provider networks	$	703.2		$	398.9	$	304.3	12-25	(1)
Customer lists		420.4			262.6		157.8	4-10	(1)
Technology		25.3			25.0		.3	3-5
Other		17.1			16.8		.3	2-15
Definite-lived trademarks		21.0			10.5		10.5	2-15
Indefinite-lived trademarks		22.3			-		22.3
Total other acquired intangible assets	$	1,209.3		$	713.8	$	495.5

(1)

The amortization period for our customer lists and provider networks includes an assumption of renewal or extension of these arrangements.  At June 30, 2011 and December 31, 2010, the periods prior to next renewal or extension for our provider networks primarily ranged from 1 to 3 years and the period prior to the next renewal or extension for our customer lists, excluding customer lists associated with Prodigy, is approximately one year.  At June 30, 2011, the period prior to the next renewal or extension for our customer lists associated with Prodigy primarily ranged from 2 to 3 years.  Any cost related to the renewal or extension of these contracts is expensed as incurred.

(2)

As a result of our acquisition of Medicity in 2011, we preliminarily assigned $79.6 million to technology, $50.4 million to customer lists, and $10.9 million to definite-lived trademarks.  As a result of our acquisition of Prodigy in 2011, we preliminarily assigned $190.0 million to customer lists, $15.0 million to definite-lived trademarks, $10.0 million to technology and $4.0 million to other.

We estimate annual pretax amortization for other acquired intangible assets for 2011 and over the next five years to be as follows:

(Millions)
2011	$	114.1
2012		114.4
2013		105.2
2014		86.0
2015		70.7
2016		66.9

XML



Investments

6 Months Ended

Jun. 30, 2011

Investments [Abstract]

Investments

7. Investments

Total investments at June 30, 2011 and December 31, 2010 were as follows:

	June 30, 2011								December 31, 2010
(Millions)	Current		Long-term		Total		Current		Long-term		Total
Debt and equity securities available for sale	$	2,023.9	$	15,126.4	$	17,150.3	$	2,111.9	$	14,849.7	$	16,961.6
Mortgage loans		51.2		1,525.1		1,576.3		55.2		1,454.6		1,509.8
Other investments		2.2		1,317.4		1,319.6		2.6		1,242.0		1,244.6
Total investments	$	2,077.3	$	17,968.9	$	20,046.2	$	2,169.7	$	17,546.3	$	19,716.0

Debt and Equity Securities

Debt and equity securities available for sale at June 30, 2011 and December 31, 2010 were as follows:

			Gross		Gross
	Amortized		Unrealized		Unrealized				Fair
(Millions)	Cost		Gains		Losses				Value
June 30, 2011
Debt securities:
U.S. government securities	$	1,340.8	$	88.3	$	(.7	)		$	1,428.4
States, municipalities and political subdivisions		2,474.4		97.1		(18.1	)			2,553.4
U.S. corporate securities		6,450.4		533.8		(17.6	)			6,966.6
Foreign securities		2,804.9		227.8		(14.2	)			3,018.5
Residential mortgage-backed securities		1,046.5		56.0		(1.2	)	(1)		1,101.3
Commercial mortgage-backed securities		1,318.1		102.1		(6.2	)	(1)		1,414.0
Other asset-backed securities		428.3		17.9		(4.1	)	(1)		442.1
Redeemable preferred securities		187.1		13.7		(9.0	)			191.8
Total debt securities		16,050.5		1,136.7		(71.1	)			17,116.1
Equity securities		35.1		5.2		(6.1	)			34.2
Total debt and equity securities (2)	$	16,085.6	$	1,141.9	$	(77.2	)		$	17,150.3
December 31, 2010
Debt securities:
U.S. government securities	$	1,293.5	$	80.8	$	(.6	)		$	1,373.7
States, municipalities and political subdivisions		2,288.8		54.4		(46.9	)			2,296.3
U.S. corporate securities		6,731.5		553.0		(21.9	)			7,262.6
Foreign securities		2,667.4		231.1		(21.2	)			2,877.3
Residential mortgage-backed securities		1,089.2		53.6		(2.8	)	(1)		1,140.0
Commercial mortgage-backed securities		1,226.4		99.5		(13.7	)	(1)		1,312.2
Other asset-backed securities		447.6		21.1		(4.8	)	(1)		463.9
Redeemable preferred securities		196.7		12.3		(12.7	)			196.3
Total debt securities		15,941.1		1,105.8		(124.6	)			16,922.3
Equity securities		35.3		5.6		(1.6	)			39.3
Total debt and equity securities (2)	$	15,976.4	$	1,111.4	$	(126.2	)		$	16,961.6

(1)

At June 30, 2011 and December 31, 2010, we held securities for which we had recognized a credit-related impairment in the past.  For the six months ended June 30, 2011, we sold securities for which we previously recognized $10.3 million of non-credit related impairments, and in the six months ended June 30, 2010, we recognized $5.2 million, net, of non-credit-related impairments in other comprehensive loss related to these securities (as of June 30, 2011 and December 31, 2010, these securities had a net unrealized capital gain of $11.3 million and $3.9 million, respectively).

(2)

Investment risks associated with our experience-rated and discontinued products generally do not impact our operating results (refer to Note 17 beginning on page 26 for additional information on our accounting for discontinued products).  At June 30, 2011, debt and equity securities with a fair value of $4.0 billion, gross unrealized capital gains of $335.7 million and gross unrealized capital losses of $32.5 million and, at December 31, 2010, debt and equity securities with a fair value of $4.1 billion, gross unrealized capital gains of $339.5 million and gross unrealized capital losses of $38.1 million were included in total debt and equity securities, but support our experience-rated and discontinued products.  Changes in net unrealized capital gains (losses) on these securities are not reflected in accumulated other comprehensive loss.

The fair value of debt securities at June 30, 2011 is shown below by contractual maturity.  Actual maturities may differ from contractual maturities because securities may be restructured, called or prepaid.

	Fair
(Millions)	Value
Due to mature:
Less than one year	$	697.3
One year through five years		3,244.2
After five years through ten years		5,227.0
Greater than ten years		4,990.2
Residential mortgage-backed securities		1,101.3
Commercial mortgage-backed securities		1,414.0
Other asset-backed securities		442.1
Total	$	17,116.1

Mortgage-Backed and Other Asset-Backed Securities

All of our residential mortgage-backed securities at June 30, 2011 were issued by the Government National Mortgage Association, the Federal National Mortgage Association or the Federal Home Loan Mortgage Corporation and carry agency guarantees and explicit or implicit guarantees by the U.S. Government.  At June 30, 2011, our residential mortgage-backed securities had an average quality rating of AAA and a weighted average duration of 3.2 years.

Our commercial mortgage-backed securities have underlying loans that are dispersed throughout the U.S.  Significant market observable inputs used to value these securities include probability of default and loss severity.  At June 30, 2011, these securities had an average quality rating of AA+ and a weighted average duration of 3.9 years.

Our other asset-backed securities have a variety of underlying collateral (e.g., automobile loans, credit card receivables and home equity loans).  Significant market observable inputs used to value these securities include the unemployment rate, loss severity and probability of default.  At June 30, 2011, these securities had an average quality rating of AA and a weighted average duration of 3.4 years.

Unrealized Capital Losses and Net Realized Capital Gains (Losses)

When a debt or equity security is in an unrealized capital loss position, we monitor the duration and severity of the loss to determine if sufficient market recovery can occur within a reasonable period of time.  We recognize an other-than-temporary impairment (“OTTI”) when we intend to sell a debt security that is in an unrealized capital loss position or if we determine a credit-related loss on a debt or equity security has occurred.

Summarized below are the debt and equity securities we held at June 30, 2011 and December 31, 2010 that were in an unrealized capital loss position, aggregated by the length of time the investments have been in that position:

	Less than 12 months				Greater than 12 months				Total (1)
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(Millions)	Value		Losses		Value		Losses		Value		Losses
June 30, 2011
Debt securities:
U.S. government securities	$	86.8	$	.3	$	14.4	$	.4	$	101.2	$	.7
States, municipalities and political subdivisions		543.6		10.6		91.2		7.5		634.8		18.1
U.S. corporate securities		781.7		15.5		67.4		2.1		849.1		17.6
Foreign securities		395.7		8.5		34.2		5.7		429.9		14.2
Residential mortgage-backed securities		90.5		1.1		3.3		.1		93.8		1.2
Commercial mortgage-backed securities		135.4		1.8		41.2		4.4		176.6		6.2
Other asset-backed securities		60.1		.9		4.5		3.2		64.6		4.1
Redeemable preferred securities		40.0		.6		50.7		8.4		90.7		9.0
Total debt securities		2,133.8		39.3		306.9		31.8		2,440.7		71.1
Equity securities		17.0		5.8		10.9		.3		27.9		6.1
Total debt and equity securities (1)	$	2,150.8	$	45.1	$	317.8	$	32.1	$	2,468.6	$	77.2
December 31, 2010
Debt securities:
U.S. government securities	$	8.4	$	.2	$	19.8	$	.4	$	28.2	$	.6
States, municipalities and political subdivisions		964.9		37.6		82.7		9.3		1,047.6		46.9
U.S. corporate securities		665.8		17.0		210.2		4.9		876.0		21.9
Foreign securities		375.9		14.6		34.6		6.6		410.5		21.2
Residential mortgage-backed securites		103.7		2.6		6.6		.2		110.3		2.8
Commercial mortgage-backed securities		103.7		2.4		78.5		11.3		182.2		13.7
Other asset-backed securities		85.9		2.0		4.9		2.8		90.8		4.8
Redeemable preferred securities		4.5		-		94.3		12.7		98.8		12.7
Total debt securities		2,312.8		76.4		531.6		48.2		2,844.4		124.6
Equity securities		.5		-		9.5		1.6		10.0		1.6
Total debt and equity securities (1)	$	2,313.3	$	76.4	$	541.1	$	49.8	$	2,854.4	$	126.2

(1) At June 30, 2011 and December 31, 2010, debt and equity securities in an unrealized capital loss position of $32.5 million and $38.1 million, respectively, and with related fair value of $669.3 million and $650.5 million, respectively, related to experience-rated and discontinued products.

We reviewed the securities in the tables above and concluded that these are performing assets generating investment income to support the needs of our business.  In performing this review, we considered factors such as the quality of the investment security based on research performed by our internal credit analysts and external rating agencies and the prospects of realizing the carrying value of the security based on the investment's current prospects for recovery.  At June 30, 2011, we did not have the intention to sell the debt securities that were in an unrealized capital loss position.

The maturity dates for debt securities in an unrealized capital loss position at June 30, 2011 were as follows:

	Supporting discontinued				Supporting remaining
	and experience-rated products				products				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(Millions)	Value		Losses		Value		Losses		Value		Losses
Due to mature:
Less than one year	$	.7	$	-	$	72.8	$	1.2	$	73.5	$	1.2
One year through five years		11.5		.1		98.1		.8		109.6		.9
After five years through ten years		190.7		3.2		578.2		8.8		768.9		12.0
Greater than ten years		364.5		21.5		789.2		24.0		1,153.7		45.5
Residential mortgage-backed securities		19.5		.3		74.3		.9		93.8		1.2
Commercial mortgage-backed securities		29.6		.9		147.0		5.3		176.6		6.2
Other asset-backed securities		25.1		.4		39.5		3.7		64.6		4.1
Total	$	641.6	$	26.4	$	1,799.1	$	44.7	$	2,440.7	$	71.1

Net realized capital gains for the three and six months ended June 30, 2011 and 2010, excluding amounts related to experience-rated contract holders and discontinued products, were as follows:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(Millions)	2011			2010			2011			2010
OTTI losses on debt securities	$	(1.7	)	$	(3.5	)	$	(4.5	)	$	(23.7	)
Portion of OTTI losses on debt securities recognized   in other comprehensive income		-			.3			-			6.7
Net OTTI losses on debt securities recognized in earnings		(1.7	)		(3.2	)		(4.5	)		(17.0	)
Net realized capital gains, excluding OTTI losses on debt securities		23.1			46.6			65.6			137.1
Net realized capital gains	$	21.4		$	43.4		$	61.1		$	120.1

The net realized capital gains for the three and six months ended June 30, 2011 and 2010 were primarily attributable to the sale of debt securities, partially offset by losses from derivative transactions.

Excluding amounts related to experience-rated and discontinued products, proceeds from the sale of debt securities and the related gross realized capital gains and losses for the three and six months ended June 30, 2011 and 2010 were as follows:

	For the Three Months Ended				For the Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Proceeds on sales	$	1,577.5	$	1,974.1	$	3,091.9	$	3,565.0
Gross realized capital gains		55.4		86.7		109.2		195.4
Gross realized capital losses		6.3		11.8		25.1		20.0

Mortgage loans

Our mortgage loans are collateralized by commercial real estate.  During the three and six months ended June 30, 2011 and 2010 we had the following activity in our mortgage loan portfolio:

	For the Three Months Ended				For the Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
New mortgage loans	$	52.8	$	15.1	$	128.5	$	15.1
Mortgage loans fully repaid		4.7		38.8		39.2		53.1
Mortgage loans foreclosed		-		-		-		11.5

At June 30, 2011 and December 31, 2010, we had no material problem, restructured or potential problem mortgage loans.  We also had no material reserves on our mortgage loans at June 30, 2011 or December 31, 2010.

We assess our mortgage loans on a regular basis for credit impairments, and annually we assign a credit quality indicator to each loan.  Our credit quality indicator is internally developed and categorizes our portfolio on a scale from 1 to 7.  Category 1 represents loans of superior quality, and Categories 6 and 7 represent loans where collections are at risk.  Most of our mortgage loans fall into the Level 2 to 4 ratings.  These ratings represent loans where credit risk is minimal to acceptable; however, these loans may display some susceptibility to economic changes.  Category 5 represents loans where credit risk is not substantial but these loans warrant management's close attention.  These indicators are based upon several factors, including current loan to value ratios, property condition, market trends, borrower quality and deal structure.  Based upon our most recent assessment at June 30, 2011 and December 31, 2010, our mortgage loans were given the following ratings:

	June 30,		December 31,
(In millions, except credit ratings indicator)	2011		2010
1	$	99.6	$	99.4
2 to 4		1,349.4		1,301.5
5		94.8		86.1
6 and 7		32.5		22.8
Total	$	1,576.3	$	1,509.8

Variable Interest Entities

In determining whether to consolidate a variable interest entity ("VIE"), we consider several factors including whether we have the power to direct activities, the obligation to absorb losses and the right to receive benefits that could potentially be significant to the VIE.  We have relationships with certain real estate and hedge fund partnerships that are considered VIEs, but are not consolidated.  We record the amount of our investment in these partnerships as long-term investments on our balance sheets and recognize our share of partnership income or losses in earnings.  Our maximum exposure to loss as a result of our investment in these partnerships is our investment balance at June 30, 2011 and December 31, 2010 of approximately $169 million and $153 million, respectively, and the risk of recapture of tax credits related to the real estate partnerships previously recognized, which we do not consider significant.  We do not have a future obligation to fund losses or debts on behalf of these investments; however, we may voluntarily contribute funds.  The real estate partnerships construct, own and manage low-income housing developments and had total assets of approximately $5.3 billion and $5.1 billion at June 30, 2011 and December 31, 2010, respectively.  The hedge fund partnerships had total assets of approximately $6.7 billion and $6.1 billion at June 30, 2011 and December 31, 2010, respectively.

Non-controlling Interests

Certain of our investment holdings are partially-owned by third parties.  At June 30, 2011 and December 31, 2010, $71 million and $74 million, respectively, of our investment holdings were owned by third parties.  The non-controlling entities' share of these investments was included in accrued expenses and other current liabilities.  Net income attributable to these interests was $1 million and $3 million for the three and six months ended June 30, 2011, respectively, and $1 million for each of the three and six months ended June 30, 2010.  These non-controlling interests did not have a material impact on our financial position or operating results.

Net Investment Income

Sources of net investment income for the three and six months ended June 30, 2011 and 2010 were as follows:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(Millions)	2011			2010			2011			2010
Debt securities	$	212.1		$	232.1		$	423.4		$	468.5
Mortgage loans		24.6			26.3			49.3			53.0
Other investments		11.8			2.5			35.9			21.1
Gross investment income		248.5			260.9			508.6			542.6
Less:  investment expenses		(7.2	)		(7.2	)		(14.7	)		(13.7	)
Net investment income (1)	$	241.3		$	253.7		$	493.9		$	528.9

(1) Investment risks associated with our experience-rated and discontinued products generally do not impact our operating results (refer to Note 17 beginning on page 26 for additional information on our accounting for discontinued products).  Net investment income includes $80.4 million and $167.0 million for the three and six months ended June 30, 2011, respectively, and $78.9 million and $168.4 million for the three and six months ended June 30, 2010, respectively, related to investments supporting our experience-rated and discontinued products.

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Other Comprehensive (Loss) Income

6 Months Ended

Jun. 30, 2011

Other comprehensive income (Note 8):

Other Comprehensive (Loss) Income

8. Other Comprehensive (Loss) Income

Shareholders' equity included the following activity in accumulated other comprehensive loss (excluding amounts related to experience-rated contract holders and discontinued products) for the six months ended June 30, 2011 and 2010:

	Net Unrealized Gains (Losses)									Pension and OPEB Plans						Total
	Securities						Foreign									Accumulated
							Currency			Unrecognized			Unrecognized			Other
	Previously						and			Net Actuarial			Prior Service			Comprehensive
(Millions)	Impaired (1)			All Other			Derivatives			Losses			Cost			(Loss) Income
Six months ended June 30, 2011
Balance at December 31, 2010	$	75.1		$	375.2		$	(27.3	)	$	(1,614.0	)	$	28.4		$	(1,162.6	)
Net unrealized gains (losses) ($155.5 pretax)		2.1			102.7			(3.7	)		-			-			101.1
Reclassification to earnings ($49.3 pretax)		(14.4	)		(38.2	)		1.4			20.5			(1.3	)		(32.0	)
Other comprehensive (loss) income		(12.3	)		64.5			(2.3	)		20.5			(1.3	)		69.1
Balance at June 30, 2011	$	62.8		$	439.7		$	(29.6	)	$	(1,593.5	)	$	27.1		$	(1,093.5	)
Six months ended June 30, 2010
Balance at December 31, 2009	$	100.3		$	235.7		$	25.3		$	(1,623.8	)	$	39.5		$	(1,223.0	)
Net unrealized gains (losses) ($449.4 pretax)		48.7			276.8			(33.4	)		-			-			292.1
Reclassification to earnings ($72.8 pretax)		(77.4	)		(82.4	)		.2			66.8			(1.9	)		(94.7	)
Other comprehensive (loss) income		(28.7	)		194.4			(33.2	)		66.8			(1.9	)		197.4
Balance at June 30, 2010	$	71.6		$	430.1		$	(7.9	)	$	(1,557.0	)	$	37.6		$	(1,025.6	)

(1) Represents unrealized losses on the non-credit-related component of impaired debt securities that we do not intend to sell and subsequent appreciation in the fair value of those securities as well as those that we intend to sell.

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Financial Instruments

6 Months Ended

Jun. 30, 2011

Financial Instruments [Abstract]

Financial Instruments

9. Financial Instruments

The preparation of our consolidated financial statements in accordance with GAAP requires certain of our assets and liabilities to be reflected at their fair value, and others on another basis, such as an adjusted historical cost basis.  In this note, we provide details on the fair value of financial assets and liabilities and how we determine those fair values.  We present this information for those financial instruments that are measured at fair value for which the change in fair value impacts net income or other comprehensive income separately from other financial assets and liabilities.

Financial Instruments Measured at Fair Value in our Balance Sheets

Certain of our financial instruments are measured at fair value in our balance sheets.  The fair values of these instruments are based on valuations that include inputs that can be classified within one of three levels of a hierarchy established by GAAP.  The following are the levels of the hierarchy and a brief description of the type of valuation information (“inputs”) that qualifies a financial asset or liability for each level:

o Level 1 – Unadjusted quoted prices for identical assets or liabilities in active markets.

o Level 2 – Inputs other than Level 1 that are based on observable market data.  These include: quoted prices for similar assets in active markets, quoted prices for identical assets in inactive markets, inputs that are observable that are not prices (such as interest rates and credit risks) and inputs that are derived from or corroborated by observable markets.

o Level 3 – Developed from unobservable data, reflecting our own assumptions.

Financial assets and liabilities are classified based upon the lowest level of input that is significant to the valuation.  When quoted prices in active markets for identical assets and liabilities are available, we use these quoted market prices to determine the fair value of financial assets and liabilities and classify these assets and liabilities as Level 1.  In other cases where a quoted market price for identical assets and liabilities in an active market is either not available or not observable, we estimate fair value using valuation methodologies based on available and observable market information or by using a matrix pricing model.  These financial assets and liabilities would then be classified as Level 2.  If quoted market prices are not available, we determine fair value using broker quotes or an internal analysis of each investment's financial performance and cash flow projections.  Thus, financial assets and liabilities may be classified in Level 3 even though there may be some significant inputs that may be observable.

The following is a description of the valuation methodologies used for our financial assets and liabilities that are measured at fair value, including the general classification of such assets and liabilities pursuant to the valuation hierarchy.

Debt Securities – Where quoted prices are available in an active market, our debt securities are classified in Level 1 of the fair value hierarchy.  Our Level 1 debt securities are comprised primarily of U.S. Treasury securities.  If Level 1 valuations are not available, the fair value is determined using models such as matrix pricing, which use quoted market prices of debt securities with similar characteristics, or discounted cash flows to estimate fair value.  We obtained one price for each of our Level 2 debt securities and did not adjust any of these prices at June 30, 2011 or December 31, 2010.

We also value certain debt securities using Level 3 inputs.  For Level 3 debt securities, fair values are determined by outside brokers or, in the case of certain private placement securities, are priced internally.  Outside brokers determine the value of these debt securities through a combination of their knowledge of the current pricing environment and market flows.  We obtained one non-binding broker quote for each of these Level 3 debt securities and did not adjust any of these quotes at June 30, 2011 or December 31, 2010.  The total fair value of our broker quoted securities was approximately $149 million at June 30, 2011 and $153 million at December 31, 2010.  Examples of these Level 3 debt securities include certain U.S. and foreign corporate securities and certain of our commercial mortgage-backed securities as well as other asset-backed securities.  For some of our private placement securities, our internal staff determines the value of these debt securities by analyzing spreads of corporate and sector indices as well as interest spreads of comparable public bonds.  Examples of these Level 3 debt securities include certain U.S. securities and certain tax-exempt municipal securities.

Equity Securities – We currently have two classifications of equity securities:  those that are publicly traded and those that are privately held.  Our publicly-traded securities are classified as Level 1 because quoted prices are available for these securities in an active market.  For privately-held equity securities, there is no active market; therefore, we classify these securities as Level 3 because we price these securities through an internal analysis of each investment's financial statements and cash flow projections.

Derivatives – Our derivative instruments are valued using models that primarily use market observable inputs and therefore are classified as Level 2 because they are traded in markets where quoted market prices are not readily available.

Financial assets and liabilities measured at fair value on a recurring basis in our balance sheets at June 30, 2011 and December 31, 2010 were as follows:

(Millions)	Level 1		Level 2		Level 3		Total
June 30, 2011
Assets:
Debt securities:
U.S. government securities	$	1,099.3	$	329.1	$	-	$	1,428.4
States, municipalities and political subdivisions		-		2,551.8		1.6		2,553.4
U.S. corporate securities		-		6,909.5		57.1		6,966.6
Foreign securities		-		2,968.4		50.1		3,018.5
Residential mortgage-backed securities		-		1,101.3		-		1,101.3
Commercial mortgage-backed securities		-		1,374.2		39.8		1,414.0
Other asset-backed securities		-		389.3		52.8		442.1
Redeemable preferred securities		-		173.3		18.5		191.8
Total debt securities		1,099.3		15,796.9		219.9		17,116.1
Equity securities		1.0		-		33.2		34.2
Derivatives		-		2.2		-		2.2
Total	$	1,100.3	$	15,799.1	$	253.1	$	17,152.5
Liabilities:
Derivatives	$	-	$	1.2	$	-	$	1.2
December 31, 2010
Assets:
Debt securities:
U.S. government securities	$	1,081.0	$	292.7	$	-	$	1,373.7
States, municipalities and political subdivisions		-		2,292.7		3.6		2,296.3
U.S. corporate securities		-		7,201.9		60.7		7,262.6
Foreign securities		-		2,822.4		54.9		2,877.3
Residential mortgage-backed securities		-		1,140.0		-		1,140.0
Commercial mortgage-backed securities		-		1,275.3		36.9		1,312.2
Other asset-backed securities		-		407.4		56.5		463.9
Redeemable preferred securities		-		178.5		17.8		196.3
Total debt securities		1,081.0		15,610.9		230.4		16,922.3
Equity securities		1.4		-		37.9		39.3
Derivatives		-		2.6		-		2.6
Total	$	1,082.4	$	15,613.5	$	268.3	$	16,964.2
Liabilities:
Derivatives	$	-	$	6.5	$	-	$	6.5

The change in the balance of Level 3 financial assets for the three and six months ended June 30, 2011 is as follows:

(Millions)	Foreign Securities			Commercial Mortgage-backed Securities			Equity Securities			Other			Total
Three Months Ended June 30, 2011
Beginning balance	$	68.4		$	43.2		$	32.6		$	138.5		$	282.7
Net realized and unrealized capital gains (losses):
Included in earnings		1.0			.8			-			(1.0	)		.8
Included in other comprehensive income		(.1	)		.7			-			1.3			1.9
Other (1)		.6			(.1	)		.6			(.1	)		1.0
Purchases		2.7			-			-			.1			2.8
Sales		(12.9	)		(3.7	)		-			-			(16.6	)
Settlements		(.6	)		(1.1	)		-			(8.8	)		(10.5	)
Transfers out of Level 3		(9.0	)		-			-			-			(9.0	)
Ending balance	$	50.1		$	39.8		$	33.2		$	130.0		$	253.1
Amount of Level 3 net unrealized losses
included in net income	$	-		$	-		$	-		$	(.2	)	$	(.2	)
(Millions)	Foreign Securities			Commercial Mortgage-backed Securities			Equity Securities			Other			Total
Six Months Ended June 30, 2011
Beginning balance	$	54.9		$	36.9		$	37.9		$	138.6		$	268.3
Net realized and unrealized capital gains (losses):
Included in earnings		.8			1.5			-			(1.6	)		.7
Included in other comprehensive income		(.5	)		2.9			-			.4			2.8
Other (1)		.7			(.1	)		(4.9	)		-			(4.3	)
Purchases		5.3			4.6			.2			10.6			20.7
Sales		(10.2	)		(3.7	)		-			(5.9	)		(19.8	)
Settlements		(.9	)		(2.3	)		-			(12.1	)		(15.3	)
Transfers into Level 3		-			-			-			-			-
Ending balance	$	50.1		$	39.8		$	33.2		$	130.0		$	253.1
Amount of Level 3 net unrealized losses
included in net income	$	-		$	-		$	-		$	(.2	)	$	(.2	)

(1) Reflects realized and unrealized capital gains and losses on investments supporting our experience-rated and discontinued products, which do not impact our operating results.

The change in the balance of Level 3 financial assets for the three and six months ended June 30, 2010 was as follows:

	Three Months Ended												Six Months Ended
	June 30, 2010												June 30, 2010
(Millions)	U.S.  Corporate  Securities			Foreign  Securities			Other			Total			U.S. Corporate  Securities			Foreign  Securities			Other			Total
Beginning balance	$	69.5		$	237.4		$	205.1		$	512.0		$	75.3		$	199.0		$	209.2		$	483.5
Net realized and unrealized gains (losses):
Included in earnings		(.1	)		2.7			2.1			4.7			(.3	)		7.5			3.5			10.7
Included in other comprehensive income		1.6			(4.9	)		3.4			.1			.1			(2.8	)		12.3			9.6
Other (1)		.2			.3			(6.0	)		(5.5	)		(.1	)		.8			(5.6	)		(4.9	)
Purchases, sales and maturities		20.5			(54.2	)		(33.7	)		(67.4	)		11.4			(66.9	)		(35.7	)		(91.2	)
Transfers out of Level 3		(6.6	)		(130.4	)		(1.8	)		(138.8	)		(1.3	)		(86.7	)		(14.6	)		(102.6	)
Ending balance	$	85.1		$	50.9		$	169.1		$	305.1		$	85.1		$	50.9		$	169.1		$	305.1
Amount of Level 3 net unrealized losses included in net income	$	-		$	(.9	)	$	-		$	(.9	)	$	-		$	(.9	)	$	(.2	)	$	(1.1	)

(1) Reflects realized and unrealized capital gains and losses on investments supporting our experience-rated and discontinued products, which do not impact our operating results.

There were no transfers into Level 3 during the three and six months ended June 30, 2011 and 2010.

Financial Instruments Not Measured at Fair Value in our Balance Sheets

The following is a description of the valuation methodologies used for estimating the fair value of our financial assets and liabilities that are carried on our balance sheets at adjusted cost or contract value.

Mortgage loans:Fair values are estimated by discounting expected mortgage loan cash flows at market rates that reflect the rates at which similar loans would be made to similar borrowers.  These rates reflect our assessment of the credit quality and the remaining duration of the loans.  The fair value estimates of mortgage loans of lower credit quality, including problem and restructured loans, are based on the estimated fair value of the underlying collateral.

Investment contract liabilities:

• With a fixed maturity:  Fair value is estimated by discounting cash flows at interest rates currently being offered by, or available to, us for similar contracts.

• Without a fixed maturity:  Fair value is estimated as the amount payable to the contract holder upon demand.  However, we have the right under such contracts to delay payment of withdrawals that may ultimately result in paying an amount different than that determined to be payable on demand.

Long-term debt:  Fair values are based on quoted market prices for the same or similar issued debt or, if no quoted market prices are available, on the current rates estimated to be available to us for debt of similar terms and remaining maturities.

The carrying value and estimated fair value of certain of our financial instruments at June 30, 2011 and December 31, 2010 were as follows:

	June 30, 2011				December 31, 2010
			Estimated				Estimated
	Carrying		Fair		Carrying		Fair
(Millions)	Value		Value		Value		Value
Assets:
Mortgage loans	$	1,576.3	$	1,625.7	$	1,509.8	$	1,526.1
Liabilities:
Investment contract liabilities:
With a fixed maturity		38.2		38.7		41.7		42.7
Without a fixed maturity		528.0		540.3		511.5		510.9
Long-term debt		3,976.5		4,363.6		4,382.5		4,728.9

Separate Accounts Measured at Fair Value in our Balance Sheets

Separate Accounts assets in our Large Case Pensions business represent funds maintained to meet specific objectives of contract holders.  Since contract holders bear the investment risk of these assets, a corresponding Separate Accounts liability has been established equal to the assets.  These assets and liabilities are carried at fair value.  Net investment income and capital gains and losses accrue directly to such contract holders.  The assets of each account are legally segregated and are not subject to claims arising from our other businesses.  Deposits, withdrawals, net investment income and realized and unrealized capital gains and losses on Separate Accounts assets are not reflected in our statements of income, shareholders' equity or cash flows.

Separate Accounts assets include debt and equity securities and derivative instruments.  The valuation methodologies used for these assets are similar to the methodologies described beginning on page 15.  During the second quarter of 2010, Separate Accounts assets also included investments in real estate that were carried at fair value.  The following is a description of the valuation methodology used to price these investments, including the general classification pursuant to the valuation hierarchy.

Real Estate – The values of the underlying real estate investments are estimated using generally accepted valuation techniques and give consideration to the investment structure.  An appraisal of the underlying real estate for each of these investments is performed annually.  In the quarters in which an investment is not appraised or its valuation is not updated, fair value is based on available market information.  The valuation of a real estate investment is adjusted only if there has been a significant change in economic circumstances related to the investment since acquisition or the most recent independent valuation and upon the appraiser's review and concurrence with the valuation.  Further, these valuations have been prepared giving consideration to the income, cost and sales comparison approaches of estimating property value.  These valuations do not necessarily represent the prices at which the real estate investments would sell, since market prices of real estate investments can only be determined by negotiation between a willing buyer and seller.  Therefore, these investment values are classified as Level 3.

Separate Accounts financial assets at June 30, 2011 and December 31, 2010 were as follows:

	June 30, 2011										December 31, 2010
(Millions)	Level 1		Level 2			Level 3		Total			Level 1		Level 2		Level 3		Total
Debt securities	$	1,120.8	$	2,603.2		$	39.0	$	3,763.0		$	1,059.7	$	2,524.9	$	56.0	$	3,640.6
Equity securities		1,120.6		-			-		1,120.6			1,231.9		-		-		1,231.9
Derivatives		-		(1.4	)		-		(1.4	)		-		.2		-		.2
Total (1)	$	2,241.4	$	2,601.8		$	39.0	$	4,882.2		$	2,291.6	$	2,525.1	$	56.0	$	4,872.7

(1) Excludes $303.2 million and $422.6 million of cash and cash equivalents and other receivables at June 30, 2011 and December 31, 2010, respectively.

The change in the balance of Level 3 Separate Accounts financial assets for the three and six months ended June 30, 2011 and 2010 was as follows:

	Debt Securities
	Three Months Ended	Six Months Ended
(Millions)	June 30, 2011	June 30, 2011
Beginning balance	$                   45.5	$                     56.0
Total losses accrued to contract holders	(5.4)	(15.6)
Purchases, sales and settlements	.4	(.9)
Transfers out of Level 3	(1.5)	(.5)
Ending balance	$                   39.0	$                     39.0

	Three Months Ended									Six Months Ended
	June 30, 2010									June 30, 2010
(Millions)	Debt Securities			Real Estate			Total			Debt Securities			Real Estate			Total
Beginning balance	$	101.1		$	70.3		$	171.4		$	97.3		$	71.4		$	168.7
Total (losses) gains accrued to contract holders		(15.7	)		6.2			(9.5	)		(30.4	)		5.1			(25.3	)
Purchases, sales and maturities		2.3			.2			2.5			21.2			.2			21.4
Transfers out of Level 3  (1)		-			(76.7	)		(76.7	)		(.4	)		(76.7	)		(77.1	)
Ending balance	$	87.7		$	-		$	87.7		$	87.7		$	-		$	87.7

(1) The transfers out of Level 3 for 2010 primarily represent real estate Separate Account assets that were transitioned out of our business.

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Pension and Other Postretirement Plans

6 Months Ended

Jun. 30, 2011

Pension and Other Postretirement Plans [Abstract]

Employee Benefit Plan

10. Pension and Other Postretirement Plans

Defined Benefit Retirement Plans

Components of the net periodic benefit (income) cost of our noncontributory defined benefit pension plans and other postretirement benefit (“OPEB”) plans for the three and six months ended June 30, 2011 and 2010 were as follows:

	Pension Plans												OPEB Plans
	Three Months Ended						Six Months Ended						Three Months Ended						Six Months Ended
	June 30,						June 30,						June 30,						June 30,
(Millions)	2011			2010			2011			2010			2011			2010			2011			2010
Operating component:
Service cost	$	-		$	15.4		$	-		$	30.7		$	-		$	-		$	.1		$	.1
Amortization of prior service cost		(.1	)		(.6	)		(.2	)		(1.1	)		(.8	)		(.9	)		(1.8	)		(1.8	)
Total operating component (1)		(.1	)		14.8			(.2	)		29.6			(.8	)		(.9	)		(1.7	)		(1.7	)
Financing component:
Interest cost		78.1			76.7			156.2			153.3			4.1			4.4			8.3			8.9
Expected return on plan assets		(95.9	)		(88.2	)		(191.9	)		(176.5	)		(.9	)		(.9	)		(1.8	)		(1.8	)
Recognized net actuarial losses		14.6			50.2			29.2			100.5			1.2			1.2			2.4			2.3
Total financing component (1)		(3.2	)		38.7			(6.5	)		77.3			4.4			4.7			8.9			9.4
Net periodic benefit (income) cost	$	(3.3	)	$	53.5		$	(6.7	)	$	106.9		$	3.6		$	3.8		$	7.2		$	7.7

(1) The operating component of this expense is allocated to our business segments and the financing component is allocated to our Corporate Financing segment.  Our Corporate Financing segment is not a business segment but is added to our business segments to reconcile to our consolidated results.  Refer to Note 15 beginning on page 25 for additional information on our business segments.

Effective December 31, 2010, our employees no longer earn future pension service credits in our tax-qualified defined benefit pension plan (the “Aetna Pension Plan”).  The Aetna Pension Plan will continue to operate and account balances will continue to earn annual interest credits.  The decrease in our pension cost for the three and six months ended June 30, 2011 compared to the corresponding periods in 2010 was caused by this freezing of the Aetna Pension Plan.

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Debt

6 Months Ended

Jun. 30, 2011

Debt [Abstract]

Debt

11. Debt

The carrying value of our long-term debt at June 30, 2011 and December 31, 2010 was as follows:

	June 30,		December 31,
(Millions)	2011		2010
Senior notes, 5.75%, due 2011 (1)	$	-	$	450.0
Senior notes, 7.875%, due 2011 (1)		-		449.9
Senior notes, 6.0%, due 2016		747.8		747.6
Senior notes, 6.5%, due 2018		499.0		498.9
Senior notes, 3.95%, due 2020		742.1		741.7
Senior notes, 4.125%, due 2021		493.1		-
Senior notes, 6.625%, due 2036		798.7		798.7
Senior notes, 6.75%, due 2037		695.8		695.7
Total long-term debt		3,976.5		4,382.5
Less current portion of long-term debt		-		899.9	(2)
Total long-term debt, less current portion	$	3,976.5	$	3,482.6

(1)	The 5.75% senior notes due June 2011 were repaid in June 2011.  The 7.875% senior notes due March 2011 were repaid in March 2011.
(2)	At December 31, 2010, the 7.875% senior notes due March 2011 and the 5.75% senior notes due June 2011 were classified as current in the accompanying consolidated balance sheet.

In May 2011, we issued $500 million of 4.125% senior notes due 2021 (the “2011 senior notes”) in anticipation of the  scheduled maturity of our 5.75% senior notes due June 2011.  In the first half of 2011, prior to issuing the 2011 senior notes, we entered into two interest rate swaps with an aggregate notional value of $250 million and designated those interest rate swaps as a hedge against interest rate exposure related to the forecast issuance of that fixed-rate debt.  We terminated the swaps prior to issuing the 2011 senior notes and upon termination of the swaps, paid $9 million to the swap counterparty.  The related $9 million loss is recorded in other comprehensive income and is being amortized as an increase to interest expense over the life of the 2011 senior notes.

At June 30, 2011, we had approximately $550 million of commercial paper outstanding with a weighted average interest rate of .31%.  As of December 31, 2010, we did not have any commercial paper outstanding.

At June 30, 2011, we had an unsecured $1.5 billion revolving credit agreement (the “Facility”) with several financial institutions which terminates in March 2013.  The Facility provides for the issuance of up to $200 million of letters of credit at our request, which count as usage of the available commitments under the Facility.  Upon our agreement with one or more financial institutions, we may expand the aggregate commitments under the Facility to a maximum of $2.0 billion.Various interest rate options are available under the Facility.  Any revolving borrowings mature on the termination date of the Facility.  We pay facility fees on the Facility ranging from .045% to .175% per annum, depending upon our long-term senior unsecured debt rating.  The facility fee was .06% at June 30, 2011.  The Facility contains a financial covenant that requires us to maintain a ratio of total debt to consolidated capitalization as of the end of each fiscal quarter at or below .5 to 1.0.  For this purpose, consolidated capitalization equals the sum of total shareholders' equity, excluding any overfunded or underfunded status of our pension and OPEB plans and any net unrealized capital gains and losses, and total debt (as defined in the Facility).  We met this requirement at June 30, 2011.  There were no amounts outstanding under the Facility at any time during the three or six months ended June 30, 2011.

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Capital Stock

6 Months Ended

Jun. 30, 2011

Capital Stock [Abstract]

Capital Stock

12. Capital Stock

On December 3, 2010 and May 20, 2011, our Board of Directors (our “Board”) authorized two share repurchase programs.  Each repurchase program authorized us to repurchase up to $750 million of our common stock.  During the six months ended June 30, 2011, we repurchased approximately 18 million shares of common stock at a cost of approximately $735 million (approximately $34 million of these repurchases were settled in early July).  At June 30, 2011, we had remaining authorization to repurchase an aggregate of up to approximately $750 million of common stock under the December 3, 2010 and May 20, 2011 programs.

In February 2011, we announced that our Board increased our cash dividend to shareholders to $.15 per share and moved us to a quarterly dividend payment cycle.  Prior to February 2011, our policy had been to pay an annual dividend of $.04 per share.

During the six months ended June 30, 2011 our Board declared the following cash dividends:

	Dividend Amount			Stockholders of	Date Paid/	Total Dividends
Date Declared	Per Share			Record Date	To be Paid	(Millions)
February 3, 2011		$	.15	April 14, 2011	April 29, 2011	$	57.0
May 20, 2011			.15	July 14, 2011	July 29, 2011		56.8

Declaration and payment of future dividends is at the discretion of our Board and may be adjusted as business needs or market conditions change.

On February 7, 2011, approximately .6 million performance stock units (“PSUs”), 1.2 million market stock units (“MSUs”) and 1.0 million restricted stock units (“RSUs”) were granted to certain employees.  The number of vested PSUs (which could range from zero to 200% of the original number of units granted) is dependent upon the degree to which we achieve performance goals during the performance period as determined by our Board's Committee on Compensation and Organization.  The performance period for the PSUs ends on December 31, 2011, and the vesting period ends on December 7, 2012.   The number of vested MSUs (which could range from zero to 150% of the original number of units granted) is based on the change between the closing price of our common stock on the grant date and the weighted average closing price of our common stock for the thirty trading days prior to the vesting date.  The MSUs have a twenty-two month vesting period.  Each vested PSU, MSU and RSU represents one share of common stock and will be paid in shares of common stock, net of taxes, at the end of the vesting period.  The RSUs will become 100% vested approximately three years from the grant date, with one-third vesting each December.

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Consolidated Statements of Income (Unaudited) (USD $) In Millions, except Per Share data	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010
Revenue:
Health care premiums	$ 6,733.4		$ 6,915.2		$ 13,484.0		$ 13,810.3
Other premiums	451.8		460.5		897.1		935.2
Fees and other revenue	896.5	[1]	873.0	[1]	1,796.1	[1]	1,772.8	[1]
Net investment income	241.3	[2]	253.7	[2]	493.9	[2]	528.9	[2]
Net realized capital gains	21.4		43.4		61.1		120.1
Total revenue	8,344.4		8,545.8		16,732.2		17,167.3
Benefits and expenses:
Health care costs	5,366.8	[3]	5,658.6	[3]	10,714.8	[3]	11,349.6	[3]
Current and future benefits	477.7		480.7		963.2		1,007.7
Operating expenses:
Selling expenses	267.2		302.5		557.9		624.0
General and administrative expenses	1,324.5		1,255.6		2,597.3		2,451.3
Total operating expenses	1,591.7		1,558.1		3,155.2		3,075.3
Interest expense	61.5		60.7		127.6		121.6
Amortization of other acquired intangible assets	25.6		24.2		51.9		48.6
Total benefits and expenses	7,523.3		7,782.3		15,012.7		15,602.8
Income before income taxes	821.1		763.5		1,719.5		1,564.5
Income taxes:
Current	226.7		238.8		564.0		454.9
Deferred	57.7		33.7		32.8		56.0
Total income taxes	284.4		272.5		596.8		510.9
Net income	$ 536.7		$ 491.0		$ 1,122.7		$ 1,053.6
Earnings per common share:
Basic	$ 1.42		$ 1.16		$ 2.94		$ 2.47
Diluted	$ 1.39		$ 1.14		$ 2.88		$ 2.42

[1] Fees and other revenue include administrative services contract member co-payments and plan sponsor reimbursements related to our mail order and specialty pharmacy operations of $14.4 million and $30.0 million (net of pharmaceutical and processing costs of $311.6 million and $620.9 million) for the three and six months ended June 30, 2011, respectively, and $17.8 million and $38.2 million (net of pharmaceutical and processing costs of $349.1 million and $702.7 million) for the three and six months ended June 30, 2010, respectively.

[2] Investment risks associated with our experience-rated and discontinued products generally do not impact our operating results (refer to Note 17 beginning on page 26 for additional information on our accounting for discontinued products). Net investment income includes $80.4 million and $167.0 million for the three and six months ended June 30, 2011, respectively, and $78.9 million and $168.4 million for the three and six months ended June 30, 2010, respectively, related to investments supporting our experience-rated and discontinued products.

[3] Health care costs have been reduced by Insured member co-payments related to our mail order and specialty pharmacy operations of $32.5 million and $69.6 million for the three and six months ended June 30, 2011, respectively, and $37.5 million and $77.5 million for the three and six months ended June 30, 2010, respectively.

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Dividend Restrictions and Statutory Surplus

6 Months Ended

Jun. 30, 2011

Dividend Restrictions and Statutory Surplus [Abstract]

Dividend Restrictions and Statutory Surplus

13. Dividend Restrictions and Statutory Surplus

Under regulatory requirements at June 30, 2011, the amount of dividends that may be paid to the Company through the end of 2011 by our insurance and HMO subsidiaries without prior approval by regulatory authorities is approximately $1.1 billion in the aggregate.  There are no such restrictions on distributions from Aetna to its shareholders.  In the second quarter of 2011, our insurance and HMO subsidiaries paid approximately $500 million of dividends to the Company.

The combined statutory capital and surplus of our insurance and HMO subsidiaries was $7.1 billion and $6.2 billion at June 30, 2011 and December 31, 2010, respectively.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2011

Commitments and Contingencies [Abstract]

Commitments and Contingencies

14. Commitments and Contingencies

Guaranty Fund Assessments

Under guaranty fund laws existing in all states, insurers doing business in those states can be assessed (up to prescribed limits) for certain obligations of insolvent insurance companies to policyholders and claimants. The health insurance guaranty associations in which we participate that operate under these laws respond to insolvencies of long-term care insurers as well as health insurers.  Our assessments generally are based on a formula relating to our premiums in the state compared to the premiums of other insurers. Certain states allow assessments to be recovered as offsets to premium taxes.  Some states have similar laws relating to HMOs.  The Pennsylvania Insurance Commissioner has placed long-term care insurer Penn Treaty Network America Insurance Company and one of its subsidiaries (collectively, “Penn Treaty”) in rehabilitation, an intermediate action before insolvency, and has petitioned a state court for liquidation.  We cannot predict when a decision will be made, although we believe it is likely that the state court will rule within the next twelve months.  If Penn Treaty is declared insolvent and placed in liquidation, we and other insurers likely would be assessed over a period of years by guaranty associations for the payments the guaranty associations are required to make to Penn Treaty policyholders.  We are currently unable to predict the ultimate outcome of, or reasonably estimate the loss or range of losses resulting from, this potential insolvency because we cannot predict when the state court will render a decision, the amount of the insolvency, if any, the amount and timing of associated guaranty association assessments or the amount or availability of potential offsets, such as premium tax offsets.  It is reasonably possible that in future reporting periods we may record a liability and expense relating to Penn Treaty or other insolvencies which could have a material adverse effect on our operating results, financial position and cash flows.  While we have historically recovered more than half of guaranty fund assessments through statutorily permitted premium tax offsets, significant increases in assessments could jeopardize future recovery of these assessments as regulatory actions may limit future offsets.

Litigation and Regulatory Proceedings

Out-of-Network Benefit Proceedings

We are named as a defendant in several purported class actions and individual lawsuits arising out of our practices related to the payment of claims for services rendered to our members by health care providers with whom we do not have a contract (“out-of-network providers”).   Among other things, these lawsuits allege that we paid too little to our health plan members and/or providers for these services, among other reasons, because of our use of data provided by Ingenix, Inc., a subsidiary of one of our competitors (“Ingenix”). Other major health insurers are the subject of similar litigation or have settled similar litigation.  

Various plaintiffs who are health care providers or medical associations seek to represent nationwide classes of out-of-network providers who provided services to our members during the period from 2001 to the present.  Various plaintiffs who are members in our health plans seek to represent nationwide classes of our members who received services from out-of-network providers during the period from 2001 to the present.  Taken together, these lawsuits allege that we violated state law, the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), the Racketeer Influenced and Corrupt Organizations Act and federal antitrust laws, either acting alone or in concert with our competitors.  The purported classes seek reimbursement of all unpaid benefits, recalculation and repayment of deductible and coinsurance amounts, unspecified damages and treble damages, statutory penalties, injunctive and declaratory relief, plus interest, costs and attorneys' fees, and seek to disqualify us from acting as a fiduciary of any benefit plan that is subject to ERISA.  Individual lawsuits that generally contain similar allegations and seek similar relief have been brought by a health plan member and by out-of-network providers.

The first class action case was commenced on July 30, 2007.  The federal Judicial Panel on Multi-District Litigation (the “MDL Panel”) has consolidated these class action cases in the U.S. District Court for the District of New Jersey (the “New Jersey District Court”) under the caption In re: Aetna UCR Litigation, MDL No. 2020 (“MDL 2020”).   In addition, the MDL Panel has transferred the individual lawsuits to MDL 2020.  On May 9, 2011, the New Jersey District Court dismissed the physician plaintiffs from MDL 2020 without prejudice.  The New Jersey District Court's action followed a ruling by the United States District Court for the Southern District of Florida (the “Florida District Court”) that the physician plaintiffs were enjoined from participating in MDL 2020 due to a prior settlement and release.  The physician plaintiffs have attempted to appeal the Florida District Court's ruling to the United States Court of Appeals for the Eleventh Circuit.

Discovery is substantially complete in MDL 2020, several motions are pending, and briefing on class certification has been completed.  The court has not set a trial date or a timetable for deciding class certification.  We intend to vigorously defend ourselves against the claims brought in these cases.

We also have received subpoenas and/or requests for documents and other information from, and been investigated by, attorneys general and other state and/or federal regulators, legislators and agencies relating to our out-of-network benefit payment practices.  It is reasonably possible that others could initiate additional litigation or additional regulatory action against us with respect to our out-of-network benefit payment practices.

CMS Actions

On June 13, 2011, the Centers for Medicare & Medicaid Services (“CMS”) lifted the intermediate sanctions it had previously imposed on us that required us to suspend the enrollment of and marketing to new members of all Aetna Medicare Advantage and Standalone Prescription Drug Plan (“PDP”) contracts.  The sanctions related to our compliance with certain Medicare Part D requirements.  We have resumed marketing our Medicare Advantage and PDP products and are enrolling beneficiaries with effective dates on and after July 1, 2011.  CMS still is not assigning any new low income subsidy members to our PDPs at this time.  However, low income subsidy members can make their own choice to enroll in Aetna products during the upcoming annual enrollment period.  As a result of these sanctions, our 2011 Medicare membership and operating results have been adversely affected because we did not participate in the 2010 open enrollment for individual 2011 Medicare plans, which occurred between November 15, 2010 and December 31, 2010.  We continue to cooperate fully with CMS to address residual matters identified in connection with the sanction review.

CMS regularly audits our performance to determine our compliance with CMS's regulations, our contracts with CMS and the quality of services we provide to our Medicare members.  CMS uses various payment mechanisms to allocate and adjust premium payments to our and other companies' Medicare plans by considering the applicable health status of Medicare members as supported by information maintained and provided by health care providers.  We collect claim and encounter data from providers and generally rely on providers to appropriately code their submissions and document their medical records.  Medicare Advantage plans and PDPs receive increased premiums for members who have certain medical conditions identified with specific health condition codes.  Federal regulators review and audit the providers' medical records and related health condition codes that determine the members' health status and the resulting premium payments to us.  CMS has instituted risk adjustment data validation (“RADV”) audits of various Medicare Advantage plans, including two of Aetna's contracts for the 2007 contract year.  Although these two audits are ongoing, we do not believe that they will have a material impact on our operating results, financial position or cash flows.

We believe that the Office of the Inspector General (the “OIG”) also is auditing risk adjustment data, and we expect CMS and the OIG to continue auditing risk adjustment data for the 2007 contract year and beyond.  Aetna and other Medicare Advantage organizations have provided comments to CMS in response to CMS's December 2010 proposed RADV sampling and payment error calculation methodology by which CMS proposes to calculate and extrapolate RADV audit payment error rates for, and determine premium refunds payable by, Medicare Advantage plans.  Our concerns with CMS's proposed methodology include the fact that the proposed methodology does not take into account the “error rate” in the original Medicare fee-for-service data that was used to develop the risk adjustment system and that retroactive audit and payment adjustments undermine the actuarial soundness of Medicare Advantage bids.  CMS has indicated that it may make retroactive contract-level premium payment adjustments based on the results of these RADV audits, which could occur as early as 2011.  CMS's premium adjustments could be implemented prior to our, or other Medicare Advantage plans, having an opportunity to appeal the audit or payment error calculation results or methodology.  We are unable to predict the ultimate outcome of CMS's final RADV audit methodology, other audits for the 2007 contract year or subsequent contract years, the amounts of any retroactive refunds of, or prospective adjustments to, premium payments made to us, or whether any audit findings would cause a change to our method of estimating future premium revenue in bid submissions to CMS for the current or future contract years or compromise premium assumptions made in our bids for prior contract years.  Any premium refunds or adjustments resulting from regulatory audits, including those resulting from CMS's selection of its final RADV audit methodology, whether as a result of RADV or other audits by CMS or OIG or otherwise, could be material and could adversely affect our operating results, financial position and cash flows.

Other Litigation and Regulatory Proceedings

We are involved in numerous other lawsuits arising, for the most part, in the ordinary course of our business operations, including employment litigation and claims of bad faith, medical malpractice, non-compliance with state and federal regulatory regimes, marketing misconduct, failure to timely or appropriately pay medical and/or group insurance claims (including post-payment audit and collection practices), rescission of insurance coverage, improper disclosure of personal information, patent infringement and other intellectual property litigation and other litigation in our Health Care and Group Insurance businesses.  Some of these other lawsuits are or are purported to be class actions.  We intend to vigorously defend ourselves against the claims brought in these matters.

In addition, our operations, current and past business practices, current and past contracts, and accounts and other books and records are subject to routine, regular and special investigations, audits, examinations and reviews by, and from time to time we receive subpoenas and other requests for information from, CMS, various state insurance and health care regulatory authorities, state attorneys general, the Center for Consumer Information and Insurance Oversight, the Office of the Inspector General, the Office of Personnel Management, committees, subcommittees and members of the U.S. Congress, the U.S. Department of Justice, U.S. attorneys and other state and federal governmental authorities.  These government actions include inquiries by, and testimony before, certain members, committees and subcommittees of the U.S. Congress regarding certain of our current and past business practices, including our overall claims processing and payment practices, our business practices with respect to our small group products, student health products or individual customers (such as market withdrawals, rating information, premium increases and medical benefit ratios), executive compensation matters and travel and entertainment expenses, as well as the investigations by, and subpoenas and requests from, attorneys general and others described above under “Out-of-Network Benefit Proceedings.”  There also continues to be heightened review by regulatory authorities of and increased litigation regarding the health and related benefits industry's business and reporting practices, including premium rate increases, utilization management, complaint and grievance processing, information privacy, provider network structure (including the use of performance-based networks), delegated arrangements, rescission of insurance coverage, limited benefit health products, student health products, pharmacy benefit management practices and claim payment practices (including payments to out-of-network providers and payments on life insurance policies).  As a leading national health and related benefits company, we regularly are the subject of such government actions.  These government actions may prevent or delay us from implementing planned premium rate increases and may result, and have resulted, in restrictions on our business, changes to or clarifications of our business practices, retroactive adjustments to premiums, refunds or other payments to members, beneficiaries or states, assessments of damages, civil or criminal fines or penalties, or other sanctions, including the possible loss of licensure or suspension or exclusion from participation in government programs, such as the intermediate sanctions previously imposed on us by CMS that are described above under “CMS Actions.”

Estimating the probable losses or a range of probable losses resulting from litigation, government actions and other legal proceedings is inherently difficult and requires an extensive degree of judgment, particularly where the matters involve indeterminate claims for monetary damages, may involve fines, penalties or punitive damages that are discretionary in amount, involve a large number of claimants or regulatory authorities, represent a change in regulatory policy, present novel legal theories, are in the early stages of the proceedings, are subject to appeal or could result in a change in business practices.  In addition, because most legal proceedings are resolved over long periods of time, potential losses are subject to change due to, among other things, new developments, changes in litigation strategy, the outcome of intermediate procedural and substantive rulings and other parties' settlement posture and their evaluation of the strength or weakness of their case against us.  Except as specifically noted above under “CMS Actions” with respect to the two ongoing RADV audits for the 2007 contract year, we are currently unable to predict the ultimate outcome of, or reasonably estimate the losses or a range of losses resulting from, the matters described above, and it is reasonably possible that their outcome could be material to us.

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Segment Information

6 Months Ended

Jun. 30, 2011

Segment Information [Abstract]

Segment Information

15. Segment Information

Our operations are conducted in three business segments:  Health Care, Group Insurance and Large Case Pensions.  Our Corporate Financing segment is not a business segment; it is added to our business segments in order to reconcile to our consolidated results.  The Corporate Financing segment includes interest expense on our outstanding debt and the financing components of our pension and OPEB plan expense (the service cost components of this expense are allocated to our business segments).

Summarized financial information of our segments for the three and six months ended June 30, 2011 and 2010 was as follows:

	Health		Group		Large Case		Corporate			Total
(Millions)	Care		Insurance		Pensions		Financing			Company
Three months ended June 30, 2011
Revenue from external customers	$	7,602.6	$	431.2	$	47.9	$	-		$	8,081.7
Operating earnings (loss) (1)		512.9		44.4		6.2		(40.7	)		522.8
Three months ended June 30, 2010
Revenue from external customers	$	7,759.4	$	450.4	$	38.9	$	-		$	8,248.7
Operating earnings (loss) (1)		467.4		44.4		6.1		(67.7	)		450.2
Six months ended June 30, 2011
Revenue from external customers	$	15,223.2	$	861.5	$	92.5	$	-		$	16,177.2
Operating earnings (loss) (1)		1,068.2		87.3		12.0		(84.5	)		1,083.0
Six months ended June 30, 2010
Revenue from external customers	$	15,524.8	$	909.3	$	84.2	$	-		$	16,518.3
Operating earnings (loss) (1)		927.5		72.9		15.8		(135.4	)		880.8

(1) Operating earnings (loss) excludes net realized capital gains or losses and the other item described in the reconciliation on page 26.

A reconciliation of operating earnings to net income for the three and six months ended June 30, 2011 and 2010 was as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Operating earnings	$	522.8	$	450.2	$	1,083.0	$	880.8
Litigation-related insurance proceeds (1)		-		13.0		-		58.5
Net realized capital gains		13.9		27.8		39.7		114.3
Net income	$	536.7	$	491.0	$	1,122.7	$	1,053.6

(1) Following a Pennsylvania Supreme Court ruling in June 2009, we recorded litigation-related insurance proceeds of $13.0 million ($20.0 million pretax) and $58.5 million ($90.0 million pretax), respectively, for the three and six months ended June 30, 2010, respectively, from our liability insurers related to certain litigation we settled in 2003.  We excluded this item and net realized capital gains from our operating earnings because we believe they neither relate to the ordinary course of our business nor reflect our underlying business performance.

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Reinsurance

6 Months Ended

Jun. 30, 2011

Reinsurance [Abstract]

Reinsurance

16. Reinsurance

In April 2011, we entered into  three-year reinsurance agreements with Vitality Re II Limited, an unrelated insurer.  These agreements allow us to reduce our required statutory capital and provide an aggregate of $150 million of collateralized excess of loss reinsurance coverage on a portion of Aetna's group Commercial Insured Health Care business.

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Discontinued Products

6 Months Ended

Jun. 30, 2011

Discontinued Products [Abstract]

Discontinued Products

17. Discontinued Products

Prior to 1993, we sold single-premium annuities (“SPAs”) and guaranteed investment contracts (“GICs”), primarily to employer sponsored pension plans.  In 1993, we discontinued selling these products to Large Case Pensions customers, and now we refer to these products as discontinued products.

We discontinued selling these products because they were generating losses for us, and we projected that they would continue to generate losses over their life (which is currently greater than 30 years for SPAs and less than 5 years for GICs); so we established a reserve for anticipated future losses at the time of discontinuance.  This reserve represents the present value (at the risk-free rate of return at the time of discontinuance, consistent with the duration of the liabilities) of the difference between the expected cash flows from the assets supporting these products and the cash flows expected to be required to meet the obligations of the outstanding contracts.  Because we projected anticipated cash shortfalls in our discontinued products, at the time of discontinuance we established a receivable from Large Case Pensions' continuing products (which is eliminated in consolidation).

Key assumptions in setting this reserve include future investment results, payments to retirees, mortality and retirement rates and the cost of asset management and customer service.  In 1997, we began the use of a bond default assumption to reflect historical default experience.  In 1995, we modified the mortality tables used in order to reflect a more up-to-date 1994 Uninsured Pensioner's Mortality table.  Other than these changes, since 1993 there have been no significant changes to the assumptions underlying the reserve.

We review the adequacy of this reserve quarterly based on actual experience.  As long as our expectation of future losses remains consistent with prior projections, the results of the discontinued products are applied to the reserve and do not affect net income.  However, if actual or expected future losses are greater than we currently estimate, we may increase the reserve, which could adversely impact net income.  If actual or expected future losses are less than we currently estimate, we may decrease the reserve, which could favorably impact net income.  The current reserve reflects management's best estimate of anticipated future losses.  The reserve for anticipated future losses is included in future policy benefits on our balance sheet.

The activity in the reserve for anticipated future losses on discontinued products for the six months ended June 30, 2011 and 2010 was as follows (pretax):

(Millions)	2011		2010
Reserve, beginning of period	$	884.8	$	789.2
Operating income (loss)		1.5		(7.4	)
Net realized capital gains		19.7		66.9
Reserve, end of period	$	906.0	$	848.7

During the six months ended June 30, 2011, our discontinued products reflected net realized capital gains primarily attributable to gains from the sale of debt securities partially offset by losses from derivative transactions. We evaluated the operating income in 2011 against our expectations of future cash flows assumed in estimating the reserve and concluded that no adjustment to the reserve is required at June 30, 2011.

Assets and liabilities supporting discontinued products at June 30, 2011 and December 31, 2010 were as follows: (1)

(Millions)	2011		2010
Assets:
Debt and equity securities available for sale	$	2,543.3	$	2,610.3
Mortgage loans		466.3		498.8
Other investments		658.7		603.2
Total investments		3,668.3		3,712.3
Other assets		82.7		90.4
Collateral received under securities loan agreements		13.7		35.1
Current and deferred income taxes		36.1		20.7
Receivable from continuing products (2)		507.5		492.4
Total assets	$	4,308.3	$	4,350.9
Liabilities:
Future policy benefits	$	3,080.0	$	3,162.2
Policyholders' funds		9.1		10.2
Reserve for anticipated future losses on discontinued products		906.0		884.8
Collateral payable under securities loan agreements		13.7		35.1
Other liabilities (3)		299.5		258.6
Total liabilities	$	4,308.3	$	4,350.9

(1)	Assets supporting the discontinued products are distinguished from assets supporting continuing products.
(2)	The receivable from continuing products is eliminated in consolidation.
(3)	Net unrealized capital gains on the available-for-sale debt securities are included in other liabilities and are not reflected in consolidated shareholders' equity.

The distributions on our discontinued products consisted of scheduled contract maturities, settlements and benefit payments of $105 million and $209 million for the three and six months ended June 30, 2011, respectively, and $107 million and $214 million for the three and six months ended June 30, 2010, respectively.  There were no participant-directed withdrawals of our discontinued products during each of the three and six months ended June 30, 2011 or 2010.  Cash required to fund these distributions was provided by earnings and scheduled payments on, and sales of, invested assets.

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Subsequent Events

6 Months Ended

Jun. 30, 2011

Subsequent Events [Abstract]

Subsequent Events

18. Subsequent Event

In July 2011, we entered into an agreement to acquire PayFlex Holdings, Inc., one of the nation's largest independent account-based health plan administrators, for approximately $202 million.  We expect to finance this transaction using available resources.  

In July 2011, we offered a Voluntary Early Retirement Program to eligible employees.

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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2011

Summary of Significant Accounting Policies [Abstract]

Interim Financial Statements

Interim Financial Statements

These interim financial statements necessarily rely on estimates, including assumptions as to annualized tax rates.  In the opinion of management, all adjustments necessary for a fair statement of results for the interim periods have been made.  All such adjustments are of a normal, recurring nature.  The accompanying unaudited consolidated financial statements and related notes should be read in conjunction with the consolidated financial statements and related notes presented in our 2010 Annual Report on Form 10-K (our “2010 Annual Report”).  Certain financial information that is normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”), but that is not required for interim reporting purposes, has been condensed or omitted.  We have omitted certain footnote disclosures that would substantially duplicate the disclosures in our 2010 Annual Report, unless the information contained in those disclosures materially changed or is required by GAAP.  We have evaluated subsequent events from the balance sheet date through the date the financials were issued and determined there were no other items to disclose.

Principles of Consolidation

Principles of Consolidation

These unaudited consolidated financial statements have been prepared in accordance with GAAP and include the accounts of Aetna and the subsidiaries that we control.  All significant intercompany balances have been eliminated in consolidation.

Troubled Debt Restructurings

Troubled Debt Restructurings

In April 2011, the Financial Accounting Standards Board (the “FASB”) released new accounting guidance and additional disclosure requirements relating to a creditor's restructuring of receivables including mortgage loans.  The new guidance is effective beginning July 1, 2011.  Since we have no material problem, restructured or potential problem mortgage loans, we do not expect the adoption of this accounting guidance to have a material impact on our financial position or operating results.

Deferred Acquisition Costs

Deferred Acquisition Costs

In October 2010, the FASB released new accounting guidance for costs associated with acquiring or renewing insurance contracts.  This guidance clarifies that such costs qualify for capitalization when affiliated with the successful acquisition of new and renewed insurance contracts.  The new guidance is effective beginning January 1, 2012.  Since our acquisition costs related to our Health Care and Group Insurance products are expensed as incurred, we do not expect the adoption of this accounting guidance to have an impact on our financial position or operating results.

Reconsideration of Effective Control for Repurchase Agreements

Reconsideration of Effective Control for Repurchase Agreements

In April 2011, the FASB released new accounting guidance relating to repurchase agreements and other agreements that entitle and obligate a transferor to repurchase or redeem financial assets before maturity.  The guidance prescribes when an entity may recognize a sale upon the transfer of financial assets subject to repurchase agreements.  The new guidance is effective beginning January 1, 2012.  Since we treat these transactions as secured borrowings rather than sales, we do not expect the adoption of this accounting guidance to have a material impact on our financial position or operating results.

Fair Value Measurements, New Requirements

Fair Value Measurements

In May 2011, the FASB released new guidance relating to fair value measurements.  This new guidance amends and clarifies certain existing fair value measurement principles and requires additional disclosures for all Level 3 assets, including a qualitative discussion about the sensitivity of Level 3 fair value measurements.  The new requirements are effective beginning January 1, 2012 and are not expected to have a material impact on our financial position or operating results.

Presentations of Comprehensive Income, New Requirements

Presentations of Comprehensive Income

In June 2011, the FASB released new requirements for the presentation of other comprehensive income in financial statements.  The new requirements eliminate the option that previously existed to present other comprehensive income within the statement of shareholder's equity and require the presentation of other comprehensive income in the statements of income or as a separate statement.  The new requirements are effective beginning January 1, 2012.

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Earnings Per Common Share (Tables)

6 Months Ended

Jun. 30, 2011

Earnings Per Common Share [Abstract]

Earnings Per Share

The computations of basic and diluted EPS for the three and six months ended June 30, 2011 and 2010 are as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions, except per common share data)	2011		2010		2011		2010
Net income	$	536.7	$	491.0	$	1,122.7	$	1,053.6
Weighted average shares used to compute basic EPS		379.2		423.0		381.3		427.2
Dilutive effect of outstanding stock-based compensation awards (1)		8.1		7.2		7.9		7.7
Weighted average shares used to compute diluted EPS		387.3		430.2		389.2		434.9
Basic EPS	$	1.42	$	1.16	$	2.94	$	2.47
Diluted EPS	$	1.39	$	1.14	$	2.88	$	2.42

(1) Stock based compensation awards are not included in the calculation of diluted EPS if the exercise price is greater than the average market price of Aetna common shares during the period.  Approximately 12.6 million and 12.8 million stock appreciation rights (with exercise prices ranging from $41.92 to $59.76 and $36.87 to $59.76) were not included in the calculation of diluted EPS for the three and six months ended June 30, 2011, respectively.  Stock options not included in the calculation of diluted EPS for the three and six months ended June 30, 2011 were not material.  Approximately 18.7 million and 18.8 million stock appreciation rights (with exercise prices ranging from $32.11 to $59.76), respectively, and 5.8 million stock options (with exercise prices ranging from $33.38 to $42.35) were not included in the calculation of diluted EPS for the three and six months ended June 30, 2010.

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Operating Expenses (Tables)

6 Months Ended

Jun. 30, 2011

Operating expenses:

Operating Expenses

For the three and six months ended June 30, 2011 and 2010, selling expenses (which include broker commissions, the variable component of our internal sales force compensation and premium taxes) and general and administrative expenses were as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Selling expenses	$	267.2	$	302.5	$	557.9	$	624.0
General and administrative expenses:
Salaries and related benefits		786.8		762.9		1,550.6		1,530.7
Other general and administrative expenses (1)		537.7		492.7		1,046.7		920.6
Total general and administrative expenses		1,324.5		1,255.6		2,597.3		2,451.3
Total operating expenses	$	1,591.7	$	1,558.1	$	3,155.2	$	3,075.3

(1) Includes litigation-related insurance proceeds of $20.0 million and $90.0 million for the three and six months ended June 30, 2010, respectively.  Refer to the reconciliation of operating earnings to net income in Note 15 beginning on page 25 for additional information.

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Goodwill and Other Acquired Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2011

Goodwill and Other Acquired Intangible Assets [Abstract]

Change in Goodwill

The increase in goodwill for the six months ended June 30, 2011 and 2010 is as follows:

(Millions)		2011	2010
Balance, beginning of the period	$	5,146.4	$            5,146.2
Goodwill acquired:
Prodigy (1)		441.7	-
Medicity (1)		394.3	-
Other		.6	(.5)
Balance, end of the period  (2)	$	5,983.0	$            5,145.7

(1)	Goodwill related to the acquisitions of Prodigy and Medicity is considered preliminary, pending the final allocation of the applicable purchase price.
(2)	At June 30, 2011 and 2010, $104 million of goodwill was assigned to the Group Insurance segment with the remaining balance assigned to the Health Care segment.

Other acquired intangible assets

Other acquired intangible assets at June 30, 2011 and December 31, 2010 were comprised of the following:

				Accumulated				Amortization
(Millions)	Cost			Amortization		Net Balance		Period (Years)
June 30, 2011
Other acquired intangible assets:
Provider networks	$	703.2		$	413.8	$	289.4	12-25	(1)
Customer lists		660.8	(2)		293.7		367.1	4-10	(1)
Technology		114.9	(2)		29.9		85.0	3-10
Other		19.9	(2)		16.5		3.4	2-15
Definite-lived trademarks		46.9	(2)		11.8		35.1	2-15
Indefinite-lived trademarks		22.3			-		22.3
Total other acquired intangible assets	$	1,568.0		$	765.7	$	802.3
December 31, 2010
Other acquired intangible assets:
Provider networks	$	703.2		$	398.9	$	304.3	12-25	(1)
Customer lists		420.4			262.6		157.8	4-10	(1)
Technology		25.3			25.0		.3	3-5
Other		17.1			16.8		.3	2-15
Definite-lived trademarks		21.0			10.5		10.5	2-15
Indefinite-lived trademarks		22.3			-		22.3
Total other acquired intangible assets	$	1,209.3		$	713.8	$	495.5

(1)

The amortization period for our customer lists and provider networks includes an assumption of renewal or extension of these arrangements.  At June 30, 2011 and December 31, 2010, the periods prior to next renewal or extension for our provider networks primarily ranged from 1 to 3 years and the period prior to the next renewal or extension for our customer lists, excluding customer lists associated with Prodigy, is approximately one year.  At June 30, 2011, the period prior to the next renewal or extension for our customer lists associated with Prodigy primarily ranged from 2 to 3 years.  Any cost related to the renewal or extension of these contracts is expensed as incurred.

(2)

As a result of our acquisition of Medicity in 2011, we preliminarily assigned $79.6 million to technology, $50.4 million to customer lists, and $10.9 million to definite-lived trademarks.  As a result of our acquisition of Prodigy in 2011, we preliminarily assigned $190.0 million to customer lists, $15.0 million to definite-lived trademarks, $10.0 million to technology and $4.0 million to other.

Estimated annual pretax amortization for other acquired intangible assets over the next five years

We estimate annual pretax amortization for other acquired intangible assets for 2011 and over the next five years to be as follows:

(Millions)
2011	$	114.1
2012		114.4
2013		105.2
2014		86.0
2015		70.7
2016		66.9

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Consolidated Statements of Income (Unaudited) (Parenthetical) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Income Statement [Abstract]
Administrative services contract member co-payments and plan sponsor reimbursements related to our mail order and specialty pharmacy operations	$ 14.4	$ 17.8	$ 30.0	$ 38.2
Pharmaceutical and processing costs	311.6	349.1	620.9	702.7
Insured member co-payments related to our mail order and specialty pharmacy operations	$ 32.5	$ 37.5	$ 69.6	$ 77.5

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Investments (Tables)

6 Months Ended

Jun. 30, 2011

Investments [Abstract]

Total investments

Total investments at June 30, 2011 and December 31, 2010 were as follows:

	June 30, 2011								December 31, 2010
(Millions)	Current		Long-term		Total		Current		Long-term		Total
Debt and equity securities available for sale	$	2,023.9	$	15,126.4	$	17,150.3	$	2,111.9	$	14,849.7	$	16,961.6
Mortgage loans		51.2		1,525.1		1,576.3		55.2		1,454.6		1,509.8
Other investments		2.2		1,317.4		1,319.6		2.6		1,242.0		1,244.6
Total investments	$	2,077.3	$	17,968.9	$	20,046.2	$	2,169.7	$	17,546.3	$	19,716.0

Debt and equity securities available for sale

Debt and equity securities available for sale at June 30, 2011 and December 31, 2010 were as follows:

			Gross		Gross
	Amortized		Unrealized		Unrealized				Fair
(Millions)	Cost		Gains		Losses				Value
June 30, 2011
Debt securities:
U.S. government securities	$	1,340.8	$	88.3	$	(.7	)		$	1,428.4
States, municipalities and political subdivisions		2,474.4		97.1		(18.1	)			2,553.4
U.S. corporate securities		6,450.4		533.8		(17.6	)			6,966.6
Foreign securities		2,804.9		227.8		(14.2	)			3,018.5
Residential mortgage-backed securities		1,046.5		56.0		(1.2	)	(1)		1,101.3
Commercial mortgage-backed securities		1,318.1		102.1		(6.2	)	(1)		1,414.0
Other asset-backed securities		428.3		17.9		(4.1	)	(1)		442.1
Redeemable preferred securities		187.1		13.7		(9.0	)			191.8
Total debt securities		16,050.5		1,136.7		(71.1	)			17,116.1
Equity securities		35.1		5.2		(6.1	)			34.2
Total debt and equity securities (2)	$	16,085.6	$	1,141.9	$	(77.2	)		$	17,150.3
December 31, 2010
Debt securities:
U.S. government securities	$	1,293.5	$	80.8	$	(.6	)		$	1,373.7
States, municipalities and political subdivisions		2,288.8		54.4		(46.9	)			2,296.3
U.S. corporate securities		6,731.5		553.0		(21.9	)			7,262.6
Foreign securities		2,667.4		231.1		(21.2	)			2,877.3
Residential mortgage-backed securities		1,089.2		53.6		(2.8	)	(1)		1,140.0
Commercial mortgage-backed securities		1,226.4		99.5		(13.7	)	(1)		1,312.2
Other asset-backed securities		447.6		21.1		(4.8	)	(1)		463.9
Redeemable preferred securities		196.7		12.3		(12.7	)			196.3
Total debt securities		15,941.1		1,105.8		(124.6	)			16,922.3
Equity securities		35.3		5.6		(1.6	)			39.3
Total debt and equity securities (2)	$	15,976.4	$	1,111.4	$	(126.2	)		$	16,961.6

(1)

At June 30, 2011 and December 31, 2010, we held securities for which we had recognized a credit-related impairment in the past.  For the six months ended June 30, 2011, we sold securities for which we previously recognized $10.3 million of non-credit related impairments, and in the six months ended June 30, 2010, we recognized $5.2 million, net, of non-credit-related impairments in other comprehensive loss related to these securities (as of June 30, 2011 and December 31, 2010, these securities had a net unrealized capital gain of $11.3 million and $3.9 million, respectively).

(2)

Investment risks associated with our experience-rated and discontinued products generally do not impact our operating results (refer to Note 17 beginning on page 26 for additional information on our accounting for discontinued products).  At June 30, 2011, debt and equity securities with a fair value of $4.0 billion, gross unrealized capital gains of $335.7 million and gross unrealized capital losses of $32.5 million and, at December 31, 2010, debt and equity securities with a fair value of $4.1 billion, gross unrealized capital gains of $339.5 million and gross unrealized capital losses of $38.1 million were included in total debt and equity securities, but support our experience-rated and discontinued products.  Changes in net unrealized capital gains (losses) on these securities are not reflected in accumulated other comprehensive loss.

Fair value of debt securities by contractual maturity

The fair value of debt securities at June 30, 2011 is shown below by contractual maturity.  Actual maturities may differ from contractual maturities because securities may be restructured, called or prepaid.

	Fair
(Millions)	Value
Due to mature:
Less than one year	$	697.3
One year through five years		3,244.2
After five years through ten years		5,227.0
Greater than ten years		4,990.2
Residential mortgage-backed securities		1,101.3
Commercial mortgage-backed securities		1,414.0
Other asset-backed securities		442.1
Total	$	17,116.1

Debt and Equity Securities in an Unrealized Capital Loss Position

Summarized below are the debt and equity securities we held at June 30, 2011 and December 31, 2010 that were in an unrealized capital loss position, aggregated by the length of time the investments have been in that position:

	Less than 12 months				Greater than 12 months				Total (1)
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(Millions)	Value		Losses		Value		Losses		Value		Losses
June 30, 2011
Debt securities:
U.S. government securities	$	86.8	$	.3	$	14.4	$	.4	$	101.2	$	.7
States, municipalities and political subdivisions		543.6		10.6		91.2		7.5		634.8		18.1
U.S. corporate securities		781.7		15.5		67.4		2.1		849.1		17.6
Foreign securities		395.7		8.5		34.2		5.7		429.9		14.2
Residential mortgage-backed securities		90.5		1.1		3.3		.1		93.8		1.2
Commercial mortgage-backed securities		135.4		1.8		41.2		4.4		176.6		6.2
Other asset-backed securities		60.1		.9		4.5		3.2		64.6		4.1
Redeemable preferred securities		40.0		.6		50.7		8.4		90.7		9.0
Total debt securities		2,133.8		39.3		306.9		31.8		2,440.7		71.1
Equity securities		17.0		5.8		10.9		.3		27.9		6.1
Total debt and equity securities (1)	$	2,150.8	$	45.1	$	317.8	$	32.1	$	2,468.6	$	77.2
December 31, 2010
Debt securities:
U.S. government securities	$	8.4	$	.2	$	19.8	$	.4	$	28.2	$	.6
States, municipalities and political subdivisions		964.9		37.6		82.7		9.3		1,047.6		46.9
U.S. corporate securities		665.8		17.0		210.2		4.9		876.0		21.9
Foreign securities		375.9		14.6		34.6		6.6		410.5		21.2
Residential mortgage-backed securites		103.7		2.6		6.6		.2		110.3		2.8
Commercial mortgage-backed securities		103.7		2.4		78.5		11.3		182.2		13.7
Other asset-backed securities		85.9		2.0		4.9		2.8		90.8		4.8
Redeemable preferred securities		4.5		-		94.3		12.7		98.8		12.7
Total debt securities		2,312.8		76.4		531.6		48.2		2,844.4		124.6
Equity securities		.5		-		9.5		1.6		10.0		1.6
Total debt and equity securities (1)	$	2,313.3	$	76.4	$	541.1	$	49.8	$	2,854.4	$	126.2

(1) At June 30, 2011 and December 31, 2010, debt and equity securities in an unrealized capital loss position of $32.5 million and $38.1 million, respectively, and with related fair value of $669.3 million and $650.5 million, respectively, related to experience-rated and discontinued products.

Maturity dates for debt securities

The maturity dates for debt securities in an unrealized capital loss position at June 30, 2011 were as follows:

	Supporting discontinued				Supporting remaining
	and experience-rated products				products				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(Millions)	Value		Losses		Value		Losses		Value		Losses
Due to mature:
Less than one year	$	.7	$	-	$	72.8	$	1.2	$	73.5	$	1.2
One year through five years		11.5		.1		98.1		.8		109.6		.9
After five years through ten years		190.7		3.2		578.2		8.8		768.9		12.0
Greater than ten years		364.5		21.5		789.2		24.0		1,153.7		45.5
Residential mortgage-backed securities		19.5		.3		74.3		.9		93.8		1.2
Commercial mortgage-backed securities		29.6		.9		147.0		5.3		176.6		6.2
Other asset-backed securities		25.1		.4		39.5		3.7		64.6		4.1
Total	$	641.6	$	26.4	$	1,799.1	$	44.7	$	2,440.7	$	71.1

Net realized capital gains (losses)

Net realized capital gains for the three and six months ended June 30, 2011 and 2010, excluding amounts related to experience-rated contract holders and discontinued products, were as follows:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(Millions)	2011			2010			2011			2010
OTTI losses on debt securities	$	(1.7	)	$	(3.5	)	$	(4.5	)	$	(23.7	)
Portion of OTTI losses on debt securities recognized   in other comprehensive income		-			.3			-			6.7
Net OTTI losses on debt securities recognized in earnings		(1.7	)		(3.2	)		(4.5	)		(17.0	)
Net realized capital gains, excluding OTTI losses on debt securities		23.1			46.6			65.6			137.1
Net realized capital gains	$	21.4		$	43.4		$	61.1		$	120.1

Proceeds and related gross realized capital gains and losses from the sale of debt securities

Excluding amounts related to experience-rated and discontinued products, proceeds from the sale of debt securities and the related gross realized capital gains and losses for the three and six months ended June 30, 2011 and 2010 were as follows:

	For the Three Months Ended				For the Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Proceeds on sales	$	1,577.5	$	1,974.1	$	3,091.9	$	3,565.0
Gross realized capital gains		55.4		86.7		109.2		195.4
Gross realized capital losses		6.3		11.8		25.1		20.0

Activity in mortgage loan portfolio

During the three and six months ended June 30, 2011 and 2010 we had the following activity in our mortgage loan portfolio:

	For the Three Months Ended				For the Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
New mortgage loans	$	52.8	$	15.1	$	128.5	$	15.1
Mortgage loans fully repaid		4.7		38.8		39.2		53.1
Mortgage loans foreclosed		-		-		-		11.5

Mortgage loan internal credit rating

Based upon our most recent assessment at June 30, 2011 and December 31, 2010, our mortgage loans were given the following ratings:

	June 30,		December 31,
(In millions, except credit ratings indicator)	2011		2010
1	$	99.6	$	99.4
2 to 4		1,349.4		1,301.5
5		94.8		86.1
6 and 7		32.5		22.8
Total	$	1,576.3	$	1,509.8

Sources of net investment income

Sources of net investment income for the three and six months ended June 30, 2011 and 2010 were as follows:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(Millions)	2011			2010			2011			2010
Debt securities	$	212.1		$	232.1		$	423.4		$	468.5
Mortgage loans		24.6			26.3			49.3			53.0
Other investments		11.8			2.5			35.9			21.1
Gross investment income		248.5			260.9			508.6			542.6
Less:  investment expenses		(7.2	)		(7.2	)		(14.7	)		(13.7	)
Net investment income (1)	$	241.3		$	253.7		$	493.9		$	528.9

(1) Investment risks associated with our experience-rated and discontinued products generally do not impact our operating results (refer to Note 17 beginning on page 26 for additional information on our accounting for discontinued products).  Net investment income includes $80.4 million and $167.0 million for the three and six months ended June 30, 2011, respectively, and $78.9 million and $168.4 million for the three and six months ended June 30, 2010, respectively, related to investments supporting our experience-rated and discontinued products.

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Other Comprehensive (Loss) Income (Tables)

6 Months Ended

Jun. 30, 2011

Other comprehensive income (Note 8):

Other Comprehensive (Loss) Income

Shareholders' equity included the following activity in accumulated other comprehensive loss (excluding amounts related to experience-rated contract holders and discontinued products) for the six months ended June 30, 2011 and 2010:

	Net Unrealized Gains (Losses)									Pension and OPEB Plans						Total
	Securities						Foreign									Accumulated
							Currency			Unrecognized			Unrecognized			Other
	Previously						and			Net Actuarial			Prior Service			Comprehensive
(Millions)	Impaired (1)			All Other			Derivatives			Losses			Cost			(Loss) Income
Six months ended June 30, 2011
Balance at December 31, 2010	$	75.1		$	375.2		$	(27.3	)	$	(1,614.0	)	$	28.4		$	(1,162.6	)
Net unrealized gains (losses) ($155.5 pretax)		2.1			102.7			(3.7	)		-			-			101.1
Reclassification to earnings ($49.3 pretax)		(14.4	)		(38.2	)		1.4			20.5			(1.3	)		(32.0	)
Other comprehensive (loss) income		(12.3	)		64.5			(2.3	)		20.5			(1.3	)		69.1
Balance at June 30, 2011	$	62.8		$	439.7		$	(29.6	)	$	(1,593.5	)	$	27.1		$	(1,093.5	)
Six months ended June 30, 2010
Balance at December 31, 2009	$	100.3		$	235.7		$	25.3		$	(1,623.8	)	$	39.5		$	(1,223.0	)
Net unrealized gains (losses) ($449.4 pretax)		48.7			276.8			(33.4	)		-			-			292.1
Reclassification to earnings ($72.8 pretax)		(77.4	)		(82.4	)		.2			66.8			(1.9	)		(94.7	)
Other comprehensive (loss) income		(28.7	)		194.4			(33.2	)		66.8			(1.9	)		197.4
Balance at June 30, 2010	$	71.6		$	430.1		$	(7.9	)	$	(1,557.0	)	$	37.6		$	(1,025.6	)

(1) Represents unrealized losses on the non-credit-related component of impaired debt securities that we do not intend to sell and subsequent appreciation in the fair value of those securities as well as those that we intend to sell.

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Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2011

Financial Instruments [Abstract]

Fair Value of Financial Assets

Financial assets and liabilities measured at fair value on a recurring basis in our balance sheets at June 30, 2011 and December 31, 2010 were as follows:

(Millions)	Level 1		Level 2		Level 3		Total
June 30, 2011
Assets:
Debt securities:
U.S. government securities	$	1,099.3	$	329.1	$	-	$	1,428.4
States, municipalities and political subdivisions		-		2,551.8		1.6		2,553.4
U.S. corporate securities		-		6,909.5		57.1		6,966.6
Foreign securities		-		2,968.4		50.1		3,018.5
Residential mortgage-backed securities		-		1,101.3		-		1,101.3
Commercial mortgage-backed securities		-		1,374.2		39.8		1,414.0
Other asset-backed securities		-		389.3		52.8		442.1
Redeemable preferred securities		-		173.3		18.5		191.8
Total debt securities		1,099.3		15,796.9		219.9		17,116.1
Equity securities		1.0		-		33.2		34.2
Derivatives		-		2.2		-		2.2
Total	$	1,100.3	$	15,799.1	$	253.1	$	17,152.5
Liabilities:
Derivatives	$	-	$	1.2	$	-	$	1.2
December 31, 2010
Assets:
Debt securities:
U.S. government securities	$	1,081.0	$	292.7	$	-	$	1,373.7
States, municipalities and political subdivisions		-		2,292.7		3.6		2,296.3
U.S. corporate securities		-		7,201.9		60.7		7,262.6
Foreign securities		-		2,822.4		54.9		2,877.3
Residential mortgage-backed securities		-		1,140.0		-		1,140.0
Commercial mortgage-backed securities		-		1,275.3		36.9		1,312.2
Other asset-backed securities		-		407.4		56.5		463.9
Redeemable preferred securities		-		178.5		17.8		196.3
Total debt securities		1,081.0		15,610.9		230.4		16,922.3
Equity securities		1.4		-		37.9		39.3
Derivatives		-		2.6		-		2.6
Total	$	1,082.4	$	15,613.5	$	268.3	$	16,964.2
Liabilities:
Derivatives	$	-	$	6.5	$	-	$	6.5

Changes in the Balances of Level 3 Financial Assets

The change in the balance of Level 3 financial assets for the three and six months ended June 30, 2011 is as follows:

(Millions)	Foreign Securities			Commercial Mortgage-backed Securities			Equity Securities			Other			Total
Three Months Ended June 30, 2011
Beginning balance	$	68.4		$	43.2		$	32.6		$	138.5		$	282.7
Net realized and unrealized capital gains (losses):
Included in earnings		1.0			.8			-			(1.0	)		.8
Included in other comprehensive income		(.1	)		.7			-			1.3			1.9
Other (1)		.6			(.1	)		.6			(.1	)		1.0
Purchases		2.7			-			-			.1			2.8
Sales		(12.9	)		(3.7	)		-			-			(16.6	)
Settlements		(.6	)		(1.1	)		-			(8.8	)		(10.5	)
Transfers out of Level 3		(9.0	)		-			-			-			(9.0	)
Ending balance	$	50.1		$	39.8		$	33.2		$	130.0		$	253.1
Amount of Level 3 net unrealized losses
included in net income	$	-		$	-		$	-		$	(.2	)	$	(.2	)
(Millions)	Foreign Securities			Commercial Mortgage-backed Securities			Equity Securities			Other			Total
Six Months Ended June 30, 2011
Beginning balance	$	54.9		$	36.9		$	37.9		$	138.6		$	268.3
Net realized and unrealized capital gains (losses):
Included in earnings		.8			1.5			-			(1.6	)		.7
Included in other comprehensive income		(.5	)		2.9			-			.4			2.8
Other (1)		.7			(.1	)		(4.9	)		-			(4.3	)
Purchases		5.3			4.6			.2			10.6			20.7
Sales		(10.2	)		(3.7	)		-			(5.9	)		(19.8	)
Settlements		(.9	)		(2.3	)		-			(12.1	)		(15.3	)
Transfers into Level 3		-			-			-			-			-
Ending balance	$	50.1		$	39.8		$	33.2		$	130.0		$	253.1
Amount of Level 3 net unrealized losses
included in net income	$	-		$	-		$	-		$	(.2	)	$	(.2	)

(1) Reflects realized and unrealized capital gains and losses on investments supporting our experience-rated and discontinued products, which do not impact our operating results.

The change in the balance of Level 3 financial assets for the three and six months ended June 30, 2010 was as follows:

	Three Months Ended												Six Months Ended
	June 30, 2010												June 30, 2010
(Millions)	U.S.  Corporate  Securities			Foreign  Securities			Other			Total			U.S. Corporate  Securities			Foreign  Securities			Other			Total
Beginning balance	$	69.5		$	237.4		$	205.1		$	512.0		$	75.3		$	199.0		$	209.2		$	483.5
Net realized and unrealized gains (losses):
Included in earnings		(.1	)		2.7			2.1			4.7			(.3	)		7.5			3.5			10.7
Included in other comprehensive income		1.6			(4.9	)		3.4			.1			.1			(2.8	)		12.3			9.6
Other (1)		.2			.3			(6.0	)		(5.5	)		(.1	)		.8			(5.6	)		(4.9	)
Purchases, sales and maturities		20.5			(54.2	)		(33.7	)		(67.4	)		11.4			(66.9	)		(35.7	)		(91.2	)
Transfers out of Level 3		(6.6	)		(130.4	)		(1.8	)		(138.8	)		(1.3	)		(86.7	)		(14.6	)		(102.6	)
Ending balance	$	85.1		$	50.9		$	169.1		$	305.1		$	85.1		$	50.9		$	169.1		$	305.1
Amount of Level 3 net unrealized losses included in net income	$	-		$	(.9	)	$	-		$	(.9	)	$	-		$	(.9	)	$	(.2	)	$	(1.1	)

(1) Reflects realized and unrealized capital gains and losses on investments supporting our experience-rated and discontinued products, which do not impact our operating results.

Carrying Value and Estimated Fair Value of Certain Financial Instruments

The carrying value and estimated fair value of certain of our financial instruments at June 30, 2011 and December 31, 2010 were as follows:

	June 30, 2011				December 31, 2010
			Estimated				Estimated
	Carrying		Fair		Carrying		Fair
(Millions)	Value		Value		Value		Value
Assets:
Mortgage loans	$	1,576.3	$	1,625.7	$	1,509.8	$	1,526.1
Liabilities:
Investment contract liabilities:
With a fixed maturity		38.2		38.7		41.7		42.7
Without a fixed maturity		528.0		540.3		511.5		510.9
Long-term debt		3,976.5		4,363.6		4,382.5		4,728.9

Separate Account Financial Assets

Separate Accounts financial assets at June 30, 2011 and December 31, 2010 were as follows:

	June 30, 2011										December 31, 2010
(Millions)	Level 1		Level 2			Level 3		Total			Level 1		Level 2		Level 3		Total
Debt securities	$	1,120.8	$	2,603.2		$	39.0	$	3,763.0		$	1,059.7	$	2,524.9	$	56.0	$	3,640.6
Equity securities		1,120.6		-			-		1,120.6			1,231.9		-		-		1,231.9
Derivatives		-		(1.4	)		-		(1.4	)		-		.2		-		.2
Total (1)	$	2,241.4	$	2,601.8		$	39.0	$	4,882.2		$	2,291.6	$	2,525.1	$	56.0	$	4,872.7

(1) Excludes $303.2 million and $422.6 million of cash and cash equivalents and other receivables at June 30, 2011 and December 31, 2010, respectively.

Changes in Balances of Level 3 Separate Account

The change in the balance of Level 3 Separate Accounts financial assets for the three and six months ended June 30, 2011 and 2010 was as follows:

	Debt Securities
	Three Months Ended	Six Months Ended
(Millions)	June 30, 2011	June 30, 2011
Beginning balance	$                   45.5	$                     56.0
Total losses accrued to contract holders	(5.4)	(15.6)
Purchases, sales and settlements	.4	(.9)
Transfers out of Level 3	(1.5)	(.5)
Ending balance	$                   39.0	$                     39.0

	Three Months Ended									Six Months Ended
	June 30, 2010									June 30, 2010
(Millions)	Debt Securities			Real Estate			Total			Debt Securities			Real Estate			Total
Beginning balance	$	101.1		$	70.3		$	171.4		$	97.3		$	71.4		$	168.7
Total (losses) gains accrued to contract holders		(15.7	)		6.2			(9.5	)		(30.4	)		5.1			(25.3	)
Purchases, sales and maturities		2.3			.2			2.5			21.2			.2			21.4
Transfers out of Level 3  (1)		-			(76.7	)		(76.7	)		(.4	)		(76.7	)		(77.1	)
Ending balance	$	87.7		$	-		$	87.7		$	87.7		$	-		$	87.7

(1) The transfers out of Level 3 for 2010 primarily represent real estate Separate Account assets that were transitioned out of our business.

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Pension and Other Postretirement Plans (Tables)

6 Months Ended

Jun. 30, 2011

Pension and Other Postretirement Plans [Abstract]

Components of net periodic benefit cost

Components of the net periodic benefit (income) cost of our noncontributory defined benefit pension plans and other postretirement benefit (“OPEB”) plans for the three and six months ended June 30, 2011 and 2010 were as follows:

	Pension Plans												OPEB Plans
	Three Months Ended						Six Months Ended						Three Months Ended						Six Months Ended
	June 30,						June 30,						June 30,						June 30,
(Millions)	2011			2010			2011			2010			2011			2010			2011			2010
Operating component:
Service cost	$	-		$	15.4		$	-		$	30.7		$	-		$	-		$	.1		$	.1
Amortization of prior service cost		(.1	)		(.6	)		(.2	)		(1.1	)		(.8	)		(.9	)		(1.8	)		(1.8	)
Total operating component (1)		(.1	)		14.8			(.2	)		29.6			(.8	)		(.9	)		(1.7	)		(1.7	)
Financing component:
Interest cost		78.1			76.7			156.2			153.3			4.1			4.4			8.3			8.9
Expected return on plan assets		(95.9	)		(88.2	)		(191.9	)		(176.5	)		(.9	)		(.9	)		(1.8	)		(1.8	)
Recognized net actuarial losses		14.6			50.2			29.2			100.5			1.2			1.2			2.4			2.3
Total financing component (1)		(3.2	)		38.7			(6.5	)		77.3			4.4			4.7			8.9			9.4
Net periodic benefit (income) cost	$	(3.3	)	$	53.5		$	(6.7	)	$	106.9		$	3.6		$	3.8		$	7.2		$	7.7

(1) The operating component of this expense is allocated to our business segments and the financing component is allocated to our Corporate Financing segment.  Our Corporate Financing segment is not a business segment but is added to our business segments to reconcile to our consolidated results.  Refer to Note 15 beginning on page 25 for additional information on our business segments.

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Debt (Tables)

6 Months Ended

Jun. 30, 2011

Debt - (Tables) [Abstract]

Carrying Value of Long-Term Debt

The carrying value of our long-term debt at June 30, 2011 and December 31, 2010 was as follows:

	June 30,		December 31,
(Millions)	2011		2010
Senior notes, 5.75%, due 2011 (1)	$	-	$	450.0
Senior notes, 7.875%, due 2011 (1)		-		449.9
Senior notes, 6.0%, due 2016		747.8		747.6
Senior notes, 6.5%, due 2018		499.0		498.9
Senior notes, 3.95%, due 2020		742.1		741.7
Senior notes, 4.125%, due 2021		493.1		-
Senior notes, 6.625%, due 2036		798.7		798.7
Senior notes, 6.75%, due 2037		695.8		695.7
Total long-term debt		3,976.5		4,382.5
Less current portion of long-term debt		-		899.9	(2)
Total long-term debt, less current portion	$	3,976.5	$	3,482.6

(1)	The 5.75% senior notes due June 2011 were repaid in June 2011.  The 7.875% senior notes due March 2011 were repaid in March 2011.
(2)	At December 31, 2010, the 7.875% senior notes due March 2011 and the 5.75% senior notes due June 2011 were classified as current in the accompanying consolidated balance sheet.

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Capital Stock (Tables)

6 Months Ended

Jun. 30, 2011

Capital Stock [Abstract]

Dividends declared

During the six months ended June 30, 2011 our Board declared the following cash dividends:

	Dividend Amount			Stockholders of	Date Paid/	Total Dividends
Date Declared	Per Share			Record Date	To be Paid	(Millions)
February 3, 2011		$	.15	April 14, 2011	April 29, 2011	$	57.0
May 20, 2011			.15	July 14, 2011	July 29, 2011		56.8

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2011

Segment Information [Abstract]

Summarized financial information of segments

Summarized financial information of our segments for the three and six months ended June 30, 2011 and 2010 was as follows:

	Health		Group		Large Case		Corporate			Total
(Millions)	Care		Insurance		Pensions		Financing			Company
Three months ended June 30, 2011
Revenue from external customers	$	7,602.6	$	431.2	$	47.9	$	-		$	8,081.7
Operating earnings (loss) (1)		512.9		44.4		6.2		(40.7	)		522.8
Three months ended June 30, 2010
Revenue from external customers	$	7,759.4	$	450.4	$	38.9	$	-		$	8,248.7
Operating earnings (loss) (1)		467.4		44.4		6.1		(67.7	)		450.2
Six months ended June 30, 2011
Revenue from external customers	$	15,223.2	$	861.5	$	92.5	$	-		$	16,177.2
Operating earnings (loss) (1)		1,068.2		87.3		12.0		(84.5	)		1,083.0
Six months ended June 30, 2010
Revenue from external customers	$	15,524.8	$	909.3	$	84.2	$	-		$	16,518.3
Operating earnings (loss) (1)		927.5		72.9		15.8		(135.4	)		880.8

(1) Operating earnings (loss) excludes net realized capital gains or losses and the other item described in the reconciliation on page 26.

Reconciliation of Operating Earnings to Net Income

A reconciliation of operating earnings to net income for the three and six months ended June 30, 2011 and 2010 was as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Millions)	2011		2010		2011		2010
Operating earnings	$	522.8	$	450.2	$	1,083.0	$	880.8
Litigation-related insurance proceeds (1)		-		13.0		-		58.5
Net realized capital gains		13.9		27.8		39.7		114.3
Net income	$	536.7	$	491.0	$	1,122.7	$	1,053.6

(1) Following a Pennsylvania Supreme Court ruling in June 2009, we recorded litigation-related insurance proceeds of $13.0 million ($20.0 million pretax) and $58.5 million ($90.0 million pretax), respectively, for the three and six months ended June 30, 2010, respectively, from our liability insurers related to certain litigation we settled in 2003.  We excluded this item and net realized capital gains from our operating earnings because we believe they neither relate to the ordinary course of our business nor reflect our underlying business performance.

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Discontinued Products (Tables)

6 Months Ended

Jun. 30, 2011

Discontinued Products [Abstract]

Activity in the Reserve for Anticipated Future Losses

The activity in the reserve for anticipated future losses on discontinued products for the six months ended June 30, 2011 and 2010 was as follows (pretax):

(Millions)	2011		2010
Reserve, beginning of period	$	884.8	$	789.2
Operating income (loss)		1.5		(7.4	)
Net realized capital gains		19.7		66.9
Reserve, end of period	$	906.0	$	848.7

Assets and Liabilities Supporting Discontinued Products

Assets and liabilities supporting discontinued products at June 30, 2011 and December 31, 2010 were as follows: (1)

(Millions)	2011		2010
Assets:
Debt and equity securities available for sale	$	2,543.3	$	2,610.3
Mortgage loans		466.3		498.8
Other investments		658.7		603.2
Total investments		3,668.3		3,712.3
Other assets		82.7		90.4
Collateral received under securities loan agreements		13.7		35.1
Current and deferred income taxes		36.1		20.7
Receivable from continuing products (2)		507.5		492.4
Total assets	$	4,308.3	$	4,350.9
Liabilities:
Future policy benefits	$	3,080.0	$	3,162.2
Policyholders' funds		9.1		10.2
Reserve for anticipated future losses on discontinued products		906.0		884.8
Collateral payable under securities loan agreements		13.7		35.1
Other liabilities (3)		299.5		258.6
Total liabilities	$	4,308.3	$	4,350.9

(1)	Assets supporting the discontinued products are distinguished from assets supporting continuing products.
(2)	The receivable from continuing products is eliminated in consolidation.
(3)	Net unrealized capital gains on the available-for-sale debt securities are included in other liabilities and are not reflected in consolidated shareholders' equity.

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Acquisitions (Details) (USD $) In Millions	Jul. 31, 2011	Jun. 30, 2011 Genworth Financial Inc Medicare Supplement Business [Member]	Jun. 30, 2011 Prodigy Health Group [Member]	Jun. 30, 2011 Medicity Inc [Member]
Business Acquisition [Line Items]
Acquisition price	$ 202	$ 290	$ 600	$ 500
Goodwill related to the acquisition			442	394
Amount of acquired goodwill that will be tax deductible			$ 52

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Earnings Per Common Share (Details) (USD $) In Millions, except Per Share data	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income	$ 536.7		$ 491.0		$ 1,122.7		$ 1,053.6
Weighted average shares used to compute basic EPS (in shares)	379.2		423.0		381.3		427.2
Dilutive effect of outstanding stock-based compensation awards (in shares)	8.1	[1]	7.2	[1]	7.9	[1]	7.7	[1]
Weighted average shares used to compute diluted EPS (in shares)	387.3		430.2		389.2		434.9
Basic EPS (in dollars per share)	$ 1.42		$ 1.16		$ 2.94		$ 2.47
Diluted EPS (in dollars per share)	$ 1.39		$ 1.14		$ 2.88		$ 2.42
Stock Appreciation Rights [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	12.6		18.7		12.8		18.8
Antidilutive securities excluded from computation of earnings per share, minimum exercise price (in dollars per share)	$ 41.92		$ 32.11		$ 36.87		$ 32.11
Antidilutive securities excluded from computation of earnings per share, maximum exercise price (in dollars per share)	$ 59.76		$ 59.76		$ 59.76		$ 59.76
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)			5.8				5.8
Antidilutive securities excluded from computation of earnings per share, minimum exercise price (in dollars per share)			$ 33.38				$ 33.38
Antidilutive securities excluded from computation of earnings per share, maximum exercise price (in dollars per share)			$ 42.35				$ 42.35

[1] Stock based compensation awards are not included in the calculation of diluted EPS if the exercise price is greater than the average market price of Aetna common shares during the period. Approximately 12.6 million and 12.8 million stock appreciation rights (with exercise prices ranging from $41.92 to $59.76 and $36.87 to $59.76) were not included in the calculation of diluted EPS for the three and six months ended June 30, 2011, respectively. Stock options not included in the calculation of diluted EPS for the three and six months ended June 30, 2011 were not material. Approximately 18.7 million and 18.8 million stock appreciation rights (with exercise prices ranging from $32.11 to $59.76), respectively, and 5.8 million stock options (with exercise prices ranging from $33.38 to $42.35) were not included in the calculation of diluted EPS for the three and six months ended June 30, 2010.

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Consolidated Balance Sheets (Unaudited) (USD $) In Millions	6 Months Ended		12 Months Ended
	Jun. 30, 2011		Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 910.5		$ 1,867.6
Investments	2,077.3		2,169.7
Premiums receivable, net	918.2		661.9
Other receivables, net	811.8		692.6
Accrued investment income	204.6		203.4
Collateral received under securities loan agreements	38.1		210.6
Income taxes receivable	79.3		210.1
Deferred income taxes	349.4		327.0
Other current assets	686.5		651.3
Total current assets	6,075.7		6,994.2
Long-term investments	17,968.9		17,546.3
Reinsurance recoverables	943.2		960.1
Goodwill	5,983.0	[1]	5,146.4
Other acquired intangible assets, net	802.3		495.5
Property and equipment, net	535.4		529.3
Deferred income taxes	0		29.9
Other long-term assets	724.3		742.4
Separate Accounts assets	5,185.4		5,295.3
Total assets	38,218.2		37,739.4
Current liabilities:
Health care costs payable	2,570.7		2,630.9
Future policy benefits	712.0		728.4
Unpaid claims	582.9		593.3
Unearned premiums	368.2		318.7
Policyholders' funds	1,072.7		918.1
Collateral payable under securities loan agreements	38.1		210.8
Short-term debt	549.9		0
Current portion of long-term debt	0	[2]	899.9	[2]
Accrued expenses and other current liabilities	2,428.9		2,436.8
Total current liabilities	8,323.4		8,736.9
Future policy benefits	6,160.5		6,276.4
Unpaid claims	1,508.7		1,514.3
Policyholders' funds	1,313.0		1,316.6
Long-term debt, less current portion	3,976.5		3,482.6
Deferred income taxes	155.3		0
Other long-term liabilities	1,171.9		1,226.5
Separate Accounts liabilities	5,185.4		5,295.3
Total liabilities	27,794.7		27,848.6
Commitments and contingencies (Note 14)
Shareholders' equity:
Common stock ($.01 par value; 2.6 billion shares authorized and 372.9 million shares issued and outstanding in 2011; 2.7 billion shares authorized and 384.4 million shares issued and outstanding in 2010) and additional paid-in capital	841.0		651.5
Retained earnings	10,676.0		10,401.9
Accumulated other comprehensive loss	(1,093.5)		(1,162.6)
Total shareholders' equity	10,423.5		9,890.8
Total liabilities and shareholders' equity	$ 38,218.2		$ 37,739.4

[1] At June 30, 2011 and 2010, $104 million of goodwill was assigned to the Group Insurance segment with the remaining balance assigned to the Health Care segment.

[2] At December 31, 2010, the 7.875% senior notes due March 2011 and the 5.75% senior notes due June 2011 were classified as current in the accompanying consolidated balance sheet.

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Operating Expenses (Details) (USD $) In Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010
Operating expenses:
Selling expenses	$ 267.2		$ 302.5		$ 557.9		$ 624.0
General and administrative expenses:
Salaries and related benefits	786.8		762.9		1,550.6		1,530.7
Other general and administrative expenses	537.7	[1]	492.7	[1]	1,046.7	[1]	920.6	[1]
Total general and administrative expenses	1,324.5		1,255.6		2,597.3		2,451.3
Total operating expenses	1,591.7		1,558.1		3,155.2		3,075.3
Litigation-related insurance proceeds			$ 20.0				$ 90.0

[1] Includes litigation-related insurance proceeds of $20.0 million and $90.0 million for the three and six months ended June 30, 2010, respectively. Refer to the reconciliation of operating earnings to net income in Note 15 beginning on page 25 for additional information.

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Goodwill and Other Acquired Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended					6 Months Ended		12 Months Ended				6 Months Ended		12 Months Ended				6 Months Ended		12 Months Ended		6 Months Ended		12 Months Ended			6 Months Ended		12 Months Ended			6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Dec. 31, 2010	Jun. 30, 2011 Provider networks [Member]		Dec. 31, 2010 Provider networks [Member]		Jun. 30, 2011 Prodigy Health Group [Member] Customer Lists [Member]	Jun. 30, 2011 Medicity Inc [Member] Customer Lists [Member]	Jun. 30, 2011 Customer Lists [Member]		Dec. 31, 2010 Customer Lists [Member]		Jun. 30, 2011 Prodigy Health Group [Member] Technology	Jun. 30, 2011 Medicity Inc [Member] Technology	Jun. 30, 2011 Technology		Dec. 31, 2010 Technology	Jun. 30, 2011 Prodigy Health Group [Member] Others [Member]	Jun. 30, 2011 Others [Member]		Dec. 31, 2010 Others [Member]	Jun. 30, 2011 Prodigy Health Group [Member] Trademarks Definite Lived [Member]	Jun. 30, 2011 Medicity Inc [Member] Trademarks Definite Lived [Member]	Jun. 30, 2011 Trademarks Definite Lived [Member]		Dec. 31, 2010 Trademarks Definite Lived [Member]	Jun. 30, 2011 Trademarks Indefinite Lived [Member]	Dec. 31, 2010 Trademarks Indefinite Lived [Member]	Jun. 30, 2011 Prodigy Health Group [Member]	Jun. 30, 2011 Group Insurance [Member]	Jun. 30, 2010 Group Insurance [Member]
Goodwill and Other Acquired Intangible Assets [Abstract]
Balance, beginning of the period	$ 5,146.4		$ 5,146.2
Prodigy	441.7	[1]	0	[1]
Medicity	394.3	[1]	0	[1]
Other	0.6		(0.5)
Balance, end of the period	5,983.0	[2]	5,145.7	[2]
Other Acquired Intangible Assets[Line Items]
Cost	1,568.0				1,209.3	703.2		703.2				660.8	[3]	420.4				114.9	[3]	25.3		19.9	[3]	17.1			46.9	[3]	21.0	22.3	22.3
Accumulated Amortization	765.7				713.8	413.8		398.9				293.7		262.6				29.9		25.0		16.5		16.8			11.8		10.5	0	0
Net Balance	802.3				495.5	289.4		304.3				367.1		157.8				85.0		0.3		3.4		0.3			35.1		10.5	22.3	22.3
Amortization period, minimum (in years)						12	[4]	12	[4]			4	[4]	4	[4]			3		3		2		2			2		2
Amortization period, maximum (in years)						25	[4]	25	[4]			10	[4]	10	[4]			10		5		15		15			15		15
2011	114.1
2012	114.4
2013	105.2
2014	86.0
2015	70.7
2016	66.9
Amount of assigned intangible assets										190.0	50.4					10.0	79.6				4.0				15.0	10.9
The minimum number of years in the period prior to the next renewal or extension for provider networks (in years)						1																										2
The maximum number of years in the period prior to the next renewal or extension for provider networks (in years)						3																										3
The number of years in the period prior to the next renewal or extension for provider networks (in years)												1
Segment Reporting Information [Line Items]
Goodwill assigned to segments																																	$ 104	$ 104

[1] Goodwill related to the acquisitions of Prodigy and Medicity is considered preliminary, pending the final allocation of the applicable purchase price.

[2] At June 30, 2011 and 2010, $104 million of goodwill was assigned to the Group Insurance segment with the remaining balance assigned to the Health Care segment.

[3] As a result of our acquisition of Medicity in 2011, we preliminarily assigned $79.6 million to technology, $50.4 million to customer lists, and $10.9 million to definite-lived trademarks. As a result of our acquisition of Prodigy in 2011, we preliminarily assigned $190.0 million to customer lists, $15.0 million to definite-lived trademarks, $10.0 million to technology and $4.0 million to other.

[4] The amortization period for our customer lists and provider networks includes an assumption of renewal or extension of these arrangements. At June 30, 2011 and December 31, 2010, the periods prior to next renewal or extension for our provider networks primarily ranged from 1 to 3 years and the period prior to the next renewal or extension for our customer lists, excluding customer lists associated with Prodigy, is approximately one year. At June 30, 2011, the period prior to the next renewal or extension for our customer lists associated with Prodigy primarily ranged from 2 to 3 years. Any cost related to the renewal or extension of these contracts is expensed as incurred.

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Investments (Details) (USD $)	3 Months Ended				6 Months Ended				12 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010		Dec. 31, 2010
Total Investments [Line Items]
Current	$ 2,077,300,000				$ 2,077,300,000				$ 2,169,700,000
Long-term	17,968,900,000				17,968,900,000				17,546,300,000
Total investments	20,046,200,000				20,046,200,000				19,716,000,000
Schedule of Available-for-sale Debt and Equity Securities [Line Items]
Amortized Cost	16,085,600,000	[1]			16,085,600,000	[1]			15,976,400,000	[1]
Gross Unrealized Gains					1,141,900,000	[1]			1,111,400,000	[1]
Gross Unrealized Losses					(77,200,000)	[1]			(126,200,000)	[1]
Fair Value	17,150,300,000	[1]			17,150,300,000	[1]			16,961,600,000	[1]
Non-credit-related impairments recognized in other comprehensive loss on securities where we previously took a credit impairment					(10,300,000)		5,200,000
Net unrealized capital loss or gain on securities where we previously took a credit impairment in the past	11,300,000				11,300,000				3,900,000
Fair value of investments related to our experience-rated and discontinued products	4,000,000,000				4,000,000,000				4,100,000,000
Gross unrealized gains related to our experience-rated and discontinued products					335,700,000				339,500,000
Gross unrealized losses related to our experience-rated and discontinued products					32,500,000				38,100,000
Debt securities:
Less than 12 months Fair Value	2,150,800,000	[2]			2,150,800,000	[2]			2,313,300,000	[2]
Greater than 12 months Fair Value	317,800,000	[2]			317,800,000	[2]			541,100,000	[2]
Total Fair Value	2,468,600,000	[2]			2,468,600,000	[2]			2,854,400,000	[2]
Less than 12 months Unrealized Losses					45,100,000	[2]			76,400,000	[2]
Greater than 12 months Unrealized Losses					32,100,000	[2]			49,800,000	[2]
Total Unrealized Losses					77,200,000	[2]			126,200,000	[2]
Fair Value of Debt Securities [Abstract]
Due to mature Less than one year	697,300,000				697,300,000
Due to mature One year through five years	3,244,200,000				3,244,200,000
Due to mature After five years through ten years	5,227,000,000				5,227,000,000
Due to mature Greater than ten years	4,990,200,000				4,990,200,000
Residential mortgage-backed securities	1,101,300,000				1,101,300,000
Commercial mortgage-backed securities	1,414,000,000				1,414,000,000
Other asset-backed securities	442,100,000				442,100,000
Total debt securities	17,116,100,000				17,116,100,000
Weighted average duration of residential mortgage-backed securities (in years)	3.2				3.2
Weighted average duration of commercial mortgage-backed securities (in years)	3.9				3.9
Weighted average duration of other asset-backed securities (in years)	3.4				3.4
Gross unrealized losses related to our experience-rated and discontinued products					32,500,000				38,100,000
Fair value of debt and equity securities in an unrealized capital loss position related to discontinued and experience-rated products	669,300,000				669,300,000				650,500,000
Due to mature less than one year	697,300,000				697,300,000
Due to mature one year through five years	3,244,200,000				3,244,200,000
Due to mature after five years through ten years	5,227,000,000				5,227,000,000
Due to mature greater than ten years	4,990,200,000				4,990,200,000
Residential mortgage-backed securities	1,101,300,000				1,101,300,000
Commercial mortgage-backed securities	1,414,000,000				1,414,000,000
Other asset-backed securities	442,100,000				442,100,000
Total debt securities	17,116,100,000				17,116,100,000
Net realized capital gains (losses), excluding amounts related to expreience-rated contract holders and discontinued products [Abstract]
OTTI losses on debt securities	(1,700,000)		(3,500,000)		(4,500,000)		(23,700,000)
Portion of OTTI losses on debt securities recognized in other comprehensive income	0		300,000		0		6,700,000
Net OTTI losses on debt securities recognized in earnings	(1,700,000)		(3,200,000)		(4,500,000)		(17,000,000)
Net realized capital gains, excluding OTTI losses on debt securities	23,100,000		46,600,000		65,600,000		137,100,000
Net realized capital gains	21,400,000		43,400,000		61,100,000		120,100,000
Proceeds from sale of debt securities and related gross realized capital gains (losses) [Abstract]
Proceeds on sales	1,577,500,000		1,974,100,000		3,091,900,000		3,565,000,000
Gross realized capital gains	55,400,000		86,700,000		109,200,000		195,400,000
Gross realized capital losses	6,300,000		11,800,000		25,100,000		20,000,000
Movement in Mortgage Loans on Real Estate [Roll Forward]
New mortgage loans	52,800,000		15,100,000		128,500,000		15,100,000
Mortgage loans fully repaid	4,700,000		38,800,000		39,200,000		53,100,000
Mortgage loans foreclosed	0		0		0		11,500,000
Category 1	99,600,000				99,600,000				99,400,000
Category 2-4	1,349,400,000				1,349,400,000				1,301,500,000
Category 5	94,800,000				94,800,000				86,100,000
Category 6 and 7	32,500,000				32,500,000				22,800,000
Total mortgage loans	1,576,300,000				1,576,300,000				1,509,800,000
Maximum exposure of investment balance in certain real estate and hedge fund partnerships considered variable interest entities	169,000,000				169,000,000				153,000,000
Total assets of real estate partnerships					5,300,000,000				5,100,000,000
Total assets of hedge fund partnerships					6,700,000,000				6,100,000,000
Investment holdings partially-owned by third parties	71,000,000				71,000,000				74,000,000
Net income related to investment holdings partially-owned by third parties	1,000,000		1,000,000		3,000,000		1,000,000
Net investment income [Abstract]
Debt securities	212,100,000		232,100,000		423,400,000		468,500,000
Mortgage loans	24,600,000		26,300,000		49,300,000		53,000,000
Other investments	11,800,000		2,500,000		35,900,000		21,100,000
Gross investment income	248,500,000		260,900,000		508,600,000		542,600,000
Less: investment expenses	(7,200,000)		(7,200,000)		(14,700,000)		(13,700,000)
Net investment income	241,300,000	[3]	253,700,000	[3]	493,900,000	[3]	528,900,000	[3]
Net investment income related to Investments supporting experience-rated and discontinued products	80,400,000		78,900,000		167,000,000		168,400,000
Debt And Equity Securities Available For Sale [Member]
Total Investments [Line Items]
Current	2,023,900,000				2,023,900,000				2,111,900,000
Long-term	15,126,400,000				15,126,400,000				14,849,700,000
Total investments	17,150,300,000				17,150,300,000				16,961,600,000
Mortgage Loans [Member]
Total Investments [Line Items]
Current	51,200,000				51,200,000				55,200,000
Long-term	1,525,100,000				1,525,100,000				1,454,600,000
Total investments	1,576,300,000				1,576,300,000				1,509,800,000
Other Investments [Member]
Total Investments [Line Items]
Current	2,200,000				2,200,000				2,600,000
Long-term	1,317,400,000				1,317,400,000				1,242,000,000
Total investments	1,319,600,000				1,319,600,000				1,244,600,000
US Government Agencies Debt Securities [Member]
Schedule of Available-for-sale Debt and Equity Securities [Line Items]
Amortized Cost	1,340,800,000				1,340,800,000				1,293,500,000
Gross Unrealized Gains					88,300,000				80,800,000
Gross Unrealized Losses					(700,000)				(600,000)
Fair Value	1,428,400,000				1,428,400,000				1,373,700,000
Debt securities:
Less than 12 months Fair Value	86,800,000				86,800,000				8,400,000
Greater than 12 months Fair Value	14,400,000				14,400,000				19,800,000
Total Fair Value	101,200,000				101,200,000				28,200,000
Less than 12 months Unrealized Losses					300,000				200,000
Greater than 12 months Unrealized Losses					400,000				400,000
Total Unrealized Losses					700,000				600,000
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Debt and Equity Securities [Line Items]
Amortized Cost	2,474,400,000				2,474,400,000				2,288,800,000
Gross Unrealized Gains					97,100,000				54,400,000
Gross Unrealized Losses					(18,100,000)				(46,900,000)
Fair Value	2,553,400,000				2,553,400,000				2,296,300,000
Debt securities:
Less than 12 months Fair Value	543,600,000				543,600,000				964,900,000
Greater than 12 months Fair Value	91,200,000				91,200,000				82,700,000
Total Fair Value	634,800,000				634,800,000				1,047,600,000
Less than 12 months Unrealized Losses					10,600,000				37,600,000
Greater than 12 months Unrealized Losses					7,500,000				9,300,000
Total Unrealized Losses					18,100,000				46,900,000
Domestic Corporate Debt Securities [Member]
Schedule of Available-for-sale Debt and Equity Securities [Line Items]
Amortized Cost	6,450,400,000				6,450,400,000				6,731,500,000
Gross Unrealized Gains					533,800,000				553,000,000
Gross Unrealized Losses					(17,600,000)				(21,900,000)
Fair Value	6,966,600,000				6,966,600,000				7,262,600,000
Debt securities:
Less than 12 months Fair Value	781,700,000				781,700,000				665,800,000
Greater than 12 months Fair Value	67,400,000				67,400,000				210,200,000
Total Fair Value	849,100,000				849,100,000				876,000,000
Less than 12 months Unrealized Losses					15,500,000				17,000,000
Greater than 12 months Unrealized Losses					2,100,000				4,900,000
Total Unrealized Losses					17,600,000				21,900,000
Foreign Corporate Debt Securities [Member]
Schedule of Available-for-sale Debt and Equity Securities [Line Items]
Amortized Cost	2,804,900,000				2,804,900,000				2,667,400,000
Gross Unrealized Gains					227,800,000				231,100,000
Gross Unrealized Losses					(14,200,000)				(21,200,000)
Fair Value	3,018,500,000				3,018,500,000				2,877,300,000
Debt securities:
Less than 12 months Fair Value	395,700,000				395,700,000				375,900,000
Greater than 12 months Fair Value	34,200,000				34,200,000				34,600,000
Total Fair Value	429,900,000				429,900,000				410,500,000
Less than 12 months Unrealized Losses					8,500,000				14,600,000
Greater than 12 months Unrealized Losses					5,700,000				6,600,000
Total Unrealized Losses					14,200,000				21,200,000
Residential Mortgage Backed Securities [Member]
Schedule of Available-for-sale Debt and Equity Securities [Line Items]
Amortized Cost	1,046,500,000				1,046,500,000				1,089,200,000
Gross Unrealized Gains					56,000,000				53,600,000
Gross Unrealized Losses					(1,200,000)	[4]			(2,800,000)
Fair Value	1,101,300,000				1,101,300,000				1,140,000,000
Debt securities:
Less than 12 months Fair Value	90,500,000				90,500,000				103,700,000
Greater than 12 months Fair Value	3,300,000				3,300,000				6,600,000
Total Fair Value	93,800,000				93,800,000				110,300,000
Less than 12 months Unrealized Losses					1,100,000				2,600,000
Greater than 12 months Unrealized Losses					100,000				200,000
Total Unrealized Losses					1,200,000				2,800,000
Commercial Mortgage Backed Securities [Member]
Schedule of Available-for-sale Debt and Equity Securities [Line Items]
Amortized Cost	1,318,100,000				1,318,100,000				1,226,400,000
Gross Unrealized Gains					102,100,000				99,500,000
Gross Unrealized Losses					(6,200,000)	[4]			(13,700,000)
Fair Value	1,414,000,000				1,414,000,000				1,312,200,000
Debt securities:
Less than 12 months Fair Value	135,400,000				135,400,000				103,700,000
Greater than 12 months Fair Value	41,200,000				41,200,000				78,500,000
Total Fair Value	176,600,000				176,600,000				182,200,000
Less than 12 months Unrealized Losses					1,800,000				2,400,000
Greater than 12 months Unrealized Losses					4,400,000				11,300,000
Total Unrealized Losses					6,200,000				13,700,000
Other Asset-Backed Securities [Member]
Schedule of Available-for-sale Debt and Equity Securities [Line Items]
Amortized Cost	428,300,000				428,300,000				447,600,000
Gross Unrealized Gains					17,900,000				21,100,000
Gross Unrealized Losses					(4,100,000)	[4]			(4,800,000)
Fair Value	442,100,000				442,100,000				463,900,000
Debt securities:
Less than 12 months Fair Value	60,100,000				60,100,000				85,900,000
Greater than 12 months Fair Value	4,500,000				4,500,000				4,900,000
Total Fair Value	64,600,000				64,600,000				90,800,000
Less than 12 months Unrealized Losses					900,000				2,000,000
Greater than 12 months Unrealized Losses					3,200,000				2,800,000
Total Unrealized Losses					4,100,000				4,800,000
Redeemable Preferred Stock [Member]
Schedule of Available-for-sale Debt and Equity Securities [Line Items]
Amortized Cost	187,100,000				187,100,000				196,700,000
Gross Unrealized Gains					13,700,000				12,300,000
Gross Unrealized Losses					(9,000,000)				(12,700,000)
Fair Value	191,800,000				191,800,000				196,300,000
Debt securities:
Less than 12 months Fair Value	40,000,000				40,000,000				4,500,000
Greater than 12 months Fair Value	50,700,000				50,700,000				94,300,000
Total Fair Value	90,700,000				90,700,000				98,800,000
Less than 12 months Unrealized Losses					600,000				0
Greater than 12 months Unrealized Losses					8,400,000				12,700,000
Total Unrealized Losses					9,000,000				12,700,000
Total Debt Securities [Member]
Schedule of Available-for-sale Debt and Equity Securities [Line Items]
Amortized Cost	16,050,500,000				16,050,500,000				15,941,100,000
Gross Unrealized Gains					1,136,700,000				1,105,800,000
Gross Unrealized Losses					(71,100,000)				(124,600,000)
Fair Value	17,116,100,000				17,116,100,000				16,922,300,000
Debt securities:
Less than 12 months Fair Value	2,133,800,000				2,133,800,000				2,312,800,000
Greater than 12 months Fair Value	306,900,000				306,900,000				531,600,000
Total Fair Value	2,440,700,000				2,440,700,000				2,844,400,000
Less than 12 months Unrealized Losses					39,300,000				76,400,000
Greater than 12 months Unrealized Losses					31,800,000				48,200,000
Total Unrealized Losses					71,100,000				124,600,000
Equity Securities [Member]
Schedule of Available-for-sale Debt and Equity Securities [Line Items]
Amortized Cost	35,100,000				35,100,000				35,300,000
Gross Unrealized Gains					5,200,000				5,600,000
Gross Unrealized Losses					(6,100,000)				(1,600,000)
Fair Value	34,200,000				34,200,000				39,300,000
Debt securities:
Less than 12 months Fair Value	17,000,000				17,000,000				500,000
Greater than 12 months Fair Value	10,900,000				10,900,000				9,500,000
Total Fair Value	27,900,000				27,900,000				10,000,000
Less than 12 months Unrealized Losses					5,800,000				0
Greater than 12 months Unrealized Losses					300,000				1,600,000
Total Unrealized Losses					6,100,000				1,600,000
Fair Value Of Debt Securities In Unrealized Capital Loss Position [Member]
Fair Value of Debt Securities [Abstract]
Due to mature Less than one year	73,500,000				73,500,000
Due to mature One year through five years	109,600,000				109,600,000
Due to mature After five years through ten years	768,900,000				768,900,000
Due to mature Greater than ten years	1,153,700,000				1,153,700,000
Residential mortgage-backed securities	93,800,000				93,800,000
Commercial mortgage-backed securities	176,600,000				176,600,000
Other asset-backed securities	64,600,000				64,600,000
Total debt securities	2,440,700,000				2,440,700,000
Due to mature less than one year	73,500,000				73,500,000
Due to mature one year through five years	109,600,000				109,600,000
Due to mature after five years through ten years	768,900,000				768,900,000
Due to mature greater than ten years	1,153,700,000				1,153,700,000
Residential mortgage-backed securities	93,800,000				93,800,000
Commercial mortgage-backed securities	176,600,000				176,600,000
Other asset-backed securities	64,600,000				64,600,000
Total debt securities	2,440,700,000				2,440,700,000
Fair Value Of Debt Securities In Unrealized Capital Loss Position [Member] | Supporting Discontinued And Experience Rated Products [Member]
Fair Value of Debt Securities [Abstract]
Due to mature Less than one year	700,000				700,000
Due to mature One year through five years	11,500,000				11,500,000
Due to mature After five years through ten years	190,700,000				190,700,000
Due to mature Greater than ten years	364,500,000				364,500,000
Residential mortgage-backed securities	19,500,000				19,500,000
Commercial mortgage-backed securities	29,600,000				29,600,000
Other asset-backed securities	25,100,000				25,100,000
Total debt securities	641,600,000				641,600,000
Due to mature less than one year	700,000				700,000
Due to mature one year through five years	11,500,000				11,500,000
Due to mature after five years through ten years	190,700,000				190,700,000
Due to mature greater than ten years	364,500,000				364,500,000
Residential mortgage-backed securities	19,500,000				19,500,000
Commercial mortgage-backed securities	29,600,000				29,600,000
Other asset-backed securities	25,100,000				25,100,000
Total debt securities	641,600,000				641,600,000
Fair Value Of Debt Securities In Unrealized Capital Loss Position [Member] | Supporting Remaining Products [Member]
Fair Value of Debt Securities [Abstract]
Due to mature Less than one year	72,800,000				72,800,000
Due to mature One year through five years	98,100,000				98,100,000
Due to mature After five years through ten years	578,200,000				578,200,000
Due to mature Greater than ten years	789,200,000				789,200,000
Residential mortgage-backed securities	74,300,000				74,300,000
Commercial mortgage-backed securities	147,000,000				147,000,000
Other asset-backed securities	39,500,000				39,500,000
Total debt securities	1,799,100,000				1,799,100,000
Due to mature less than one year	72,800,000				72,800,000
Due to mature one year through five years	98,100,000				98,100,000
Due to mature after five years through ten years	578,200,000				578,200,000
Due to mature greater than ten years	789,200,000				789,200,000
Residential mortgage-backed securities	74,300,000				74,300,000
Commercial mortgage-backed securities	147,000,000				147,000,000
Other asset-backed securities	39,500,000				39,500,000
Total debt securities	1,799,100,000				1,799,100,000
Unrealized Losses Of Debt Securities In Unrealized Capital Loss Position [Member]
Fair Value of Debt Securities [Abstract]
Due to mature Less than one year	1,200,000				1,200,000
Due to mature One year through five years	900,000				900,000
Due to mature After five years through ten years	12,000,000				12,000,000
Due to mature Greater than ten years	45,500,000				45,500,000
Residential mortgage-backed securities	1,200,000				1,200,000
Commercial mortgage-backed securities	6,200,000				6,200,000
Other asset-backed securities	4,100,000				4,100,000
Total debt securities	71,100,000				71,100,000
Due to mature less than one year	1,200,000				1,200,000
Due to mature one year through five years	900,000				900,000
Due to mature after five years through ten years	12,000,000				12,000,000
Due to mature greater than ten years	45,500,000				45,500,000
Residential mortgage-backed securities	1,200,000				1,200,000
Commercial mortgage-backed securities	6,200,000				6,200,000
Other asset-backed securities	4,100,000				4,100,000
Total debt securities	71,100,000				71,100,000
Unrealized Losses Of Debt Securities In Unrealized Capital Loss Position [Member] | Supporting Discontinued And Experience Rated Products [Member]
Fair Value of Debt Securities [Abstract]
Due to mature Less than one year	0				0
Due to mature One year through five years	100,000				100,000
Due to mature After five years through ten years	3,200,000				3,200,000
Due to mature Greater than ten years	21,500,000				21,500,000
Residential mortgage-backed securities	300,000				300,000
Commercial mortgage-backed securities	900,000				900,000
Other asset-backed securities	400,000				400,000
Total debt securities	26,400,000				26,400,000
Due to mature less than one year	0				0
Due to mature one year through five years	100,000				100,000
Due to mature after five years through ten years	3,200,000				3,200,000
Due to mature greater than ten years	21,500,000				21,500,000
Residential mortgage-backed securities	300,000				300,000
Commercial mortgage-backed securities	900,000				900,000
Other asset-backed securities	400,000				400,000
Total debt securities	26,400,000				26,400,000
Unrealized Losses Of Debt Securities In Unrealized Capital Loss Position [Member] | Supporting Remaining Products [Member]
Fair Value of Debt Securities [Abstract]
Due to mature Less than one year	1,200,000				1,200,000
Due to mature One year through five years	800,000				800,000
Due to mature After five years through ten years	8,800,000				8,800,000
Due to mature Greater than ten years	24,000,000				24,000,000
Residential mortgage-backed securities	900,000				900,000
Commercial mortgage-backed securities	5,300,000				5,300,000
Other asset-backed securities	3,700,000				3,700,000
Total debt securities	44,700,000				44,700,000
Due to mature less than one year	1,200,000				1,200,000
Due to mature one year through five years	800,000				800,000
Due to mature after five years through ten years	8,800,000				8,800,000
Due to mature greater than ten years	24,000,000				24,000,000
Residential mortgage-backed securities	900,000				900,000
Commercial mortgage-backed securities	5,300,000				5,300,000
Other asset-backed securities	3,700,000				3,700,000
Total debt securities	$ 44,700,000				$ 44,700,000

[1] Investment risks associated with our experience-rated and discontinued products generally do not impact our operating results (refer to Note 17 beginning on page 26 for additional information on our accounting for discontinued products). At June 30, 2011, debt and equity securities with a fair value of $4.0 billion, gross unrealized capital gains of $335.7 million and gross unrealized capital losses of $32.5 million and, at December 31, 2010, debt and equity securities with a fair value of $4.1 billion, gross unrealized capital gains of $339.5 million and gross unrealized capital losses of $38.1 million were included in total debt and equity securities, but support our experience-rated and discontinued products. Changes in net unrealized capital gains (losses) on these securities are not reflected in accumulated other comprehensive loss.

[2] At June 30, 2011 and December 31, 2010, debt and equity securities in an unrealized capital loss position of $32.5 million and $38.1 million, respectively, and with related fair value of $669.3 million and $650.5 million, respectively, related to experience-rated and discontinued products.

[3] Investment risks associated with our experience-rated and discontinued products generally do not impact our operating results (refer to Note 17 beginning on page 26 for additional information on our accounting for discontinued products). Net investment income includes $80.4 million and $167.0 million for the three and six months ended June 30, 2011, respectively, and $78.9 million and $168.4 million for the three and six months ended June 30, 2010, respectively, related to investments supporting our experience-rated and discontinued products.

[4] At June 30, 2011 and December 31, 2010, we held securities for which we had recognized a credit-related impairment in the past. For the six months ended June 30, 2011, we sold securities for which we previously recognized $10.3 million of non-credit related impairments, and in the six months ended June 30, 2010, we recognized $5.2 million, net, of non-credit-related impairments in other comprehensive loss related to these securities (as of June 30, 2011 and December 31, 2010, these securities had a net unrealized capital gain of $11.3 million and $3.9 million, respectively).

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Other Comprehensive (Loss) Income (Details) (USD $) In Millions	6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010
Comprehensive Income Loss [Line Items]
Balance	$ (1,162.6)
Balance	(1,093.5)
Unrealized net gains (losses) arising during the period, pre-tax	155.5		449.4
Reclassification to earnings, pre-tax	49.3		72.8
Net Unrealized Gains (Losses) Previously Impaired Securities [Member]
Comprehensive Income Loss [Line Items]
Balance	75.1	[1]	100.3	[1]
Net unrealized gains (losses)	2.1	[1]	48.7	[1]
Reclassification to earnings	(14.4)	[1]	(77.4)	[1]
Other comprehensive (loss) income	(12.3)	[1]	(28.7)	[1]
Balance	62.8	[1]	71.6	[1]
Net Unrealized Gains (Losses) All Other Securities [Member]
Comprehensive Income Loss [Line Items]
Balance	375.2		235.7
Net unrealized gains (losses)	102.7		276.8
Reclassification to earnings	(38.2)		(82.4)
Other comprehensive (loss) income	64.5		194.4
Balance	439.7		430.1
Net Unrealized Gains (Losses) Foreign Currency And Derivatives [Member]
Comprehensive Income Loss [Line Items]
Balance	(27.3)		25.3
Net unrealized gains (losses)	(3.7)		(33.4)
Reclassification to earnings	1.4		0.2
Other comprehensive (loss) income	(2.3)		(33.2)
Balance	(29.6)		(7.9)
Pension And Opeb Plans Unrecognized Net Actuarial (Losses) [Member]
Comprehensive Income Loss [Line Items]
Balance	(1,614.0)		(1,623.8)
Net unrealized gains (losses)	0		0
Reclassification to earnings	20.5		66.8
Other comprehensive (loss) income	20.5		66.8
Balance	(1,593.5)		(1,557.0)
Pension And Opeb Plans Unrecognized Prior Service Cost [Member]
Comprehensive Income Loss [Line Items]
Balance	28.4		39.5
Net unrealized gains (losses)	0		0
Reclassification to earnings	(1.3)		(1.9)
Other comprehensive (loss) income	(1.3)		(1.9)
Balance	27.1		37.6
Accumulated Other Comprehensive Loss [Member]
Comprehensive Income Loss [Line Items]
Balance	(1,162.6)		(1,223.0)
Net unrealized gains (losses)	101.1		292.1
Reclassification to earnings	(32.0)		(94.7)
Other comprehensive (loss) income	69.1		197.4
Balance	$ (1,093.5)		$ (1,025.6)

[1] Represents unrealized losses on the non-credit-related component of impaired debt securities that we do not intend to sell and subsequent appreciation in the fair value of those securities as well as those that we intend to sell.

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Financial Instruments (Details) (USD $) In Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010		Dec. 31, 2010
Debt securities:
U.S. government securities	$ 1,428.4				$ 1,428.4				$ 1,373.7
States, municipalities and political subdivisions	2,553.4				2,553.4				2,296.3
U.S. corporate securities	6,966.6				6,966.6				7,262.6
Foreign securities	3,018.5				3,018.5				2,877.3
Residential mortgage-backed securities	1,101.3				1,101.3				1,140.0
Commercial mortgage-backed securities	1,414.0				1,414.0				1,312.2
Other asset-backed securities	442.1				442.1				463.9
Redeemable preferred securities	191.8				191.8				196.3
Total debt securities	17,116.1				17,116.1				16,922.3
Equity securities	34.2				34.2				39.3
Derivatives	2.2				2.2				2.6
Total	17,152.5				17,152.5				16,964.2
Liabilities:
Derivatives	1.2				1.2				6.5
Beginning balance	282.7		512.0		268.3		483.5
Amount of Level 3 net unrealized losses included in net income	(0.2)		(0.9)		(0.2)		(1.1)
Net realized and unrealized capital gains (losses):
Included in earnings	0.8		4.7		0.7		10.7
Included in other comprehensive income	1.9		0.1		2.8		9.6
Other	1.0	[1]	(5.5)	[1]	(4.3)	[1]	(4.9)	[1]
Purchases	2.8				20.7
Sales	(16.6)				(19.8)
Settlements	(10.5)				(15.3)
Purchases, sales and maturities			(67.4)				(91.2)
Transfers out of Level 3	(9.0)		(138.8)				(102.6)
Transfers into Level 3					0
Ending balance	253.1		305.1		253.1		305.1
Separate Account Fair Value Assets Measured On Recurring Basis [Line Items]
Debt securities	3,763.0				3,763.0				3,640.6
Equity securities	1,120.6				1,120.6				1,231.9
Derivatives	(1.4)				(1.4)				0.2
Total	4,882.2				4,882.2				4,872.7
Separate Account Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation:
Beginning balance	45.5		171.4		56.0		168.7
Total losses accrued to contract holders	(5.4)		(9.5)		(15.6)		(25.3)
Purchases, sales and settlements	0.4		2.5		(0.9)		21.4
Transfers out of Level 3	(1.5)		(76.7)		(0.5)		(77.1)
Ending balance	39.0		87.7		39.0		87.7
Fair Value of Level 3 broker quoted securities	149				149				153
Cash and cash equivalents and other receivables relating to separate account financial assets	303.2				303.2				422.6
Level 1 [Member]
Debt securities:
U.S. government securities	1,099.3				1,099.3				1,081.0
States, municipalities and political subdivisions	0				0				0
U.S. corporate securities	0				0				0
Foreign securities	0				0				0
Residential mortgage-backed securities	0				0				0
Commercial mortgage-backed securities	0				0				0
Other asset-backed securities	0				0				0
Redeemable preferred securities	0				0				0
Total debt securities	1,099.3				1,099.3				1,081.0
Equity securities	1.0				1.0				1.4
Derivatives	0				0				0
Total	1,100.3				1,100.3				1,082.4
Liabilities:
Derivatives	0				0				0
Level 2 [Member]
Debt securities:
U.S. government securities	329.1				329.1				292.7
States, municipalities and political subdivisions	2,551.8				2,551.8				2,292.7
U.S. corporate securities	6,909.5				6,909.5				7,201.9
Foreign securities	2,968.4				2,968.4				2,822.4
Residential mortgage-backed securities	1,101.3				1,101.3				1,140.0
Commercial mortgage-backed securities	1,374.2				1,374.2				1,275.3
Other asset-backed securities	389.3				389.3				407.4
Redeemable preferred securities	173.3				173.3				178.5
Total debt securities	15,796.9				15,796.9				15,610.9
Equity securities	0				0				0
Derivatives	2.2				2.2				2.6
Total	15,799.1				15,799.1				15,613.5
Liabilities:
Derivatives	1.2				1.2				6.5
Level 3 [Member]
Debt securities:
U.S. government securities	0				0				0
States, municipalities and political subdivisions	1.6				1.6				3.6
U.S. corporate securities	57.1				57.1				60.7
Foreign securities	50.1				50.1				54.9
Residential mortgage-backed securities	0				0				0
Commercial mortgage-backed securities	39.8				39.8				36.9
Other asset-backed securities	52.8				52.8				56.5
Redeemable preferred securities	18.5				18.5				17.8
Total debt securities	219.9				219.9				230.4
Equity securities	33.2				33.2				37.9
Derivatives	0				0				0
Total	253.1				253.1				268.3
Liabilities:
Derivatives	0				0				0
US Corporate Debt Securities [Member]
Liabilities:
Beginning balance			69.5				75.3
Amount of Level 3 net unrealized losses included in net income			0				0
Net realized and unrealized capital gains (losses):
Included in earnings			(0.1)				(0.3)
Included in other comprehensive income			1.6				0.1
Other			0.2	[1]			(0.1)	[1]
Purchases, sales and maturities			20.5				11.4
Transfers out of Level 3			(6.6)				(1.3)
Ending balance			85.1				85.1
Foreign Corporate Debt Securities Non Us [Member]
Liabilities:
Beginning balance	68.4		237.4		54.9		199.0
Amount of Level 3 net unrealized losses included in net income	0		(0.9)		0		(0.9)
Net realized and unrealized capital gains (losses):
Included in earnings	1.0		2.7		0.8		7.5
Included in other comprehensive income	(0.1)		(4.9)		(0.5)		(2.8)
Other	0.6	[1]	0.3	[1]	0.7	[1]	0.8	[1]
Purchases	2.7				5.3
Sales	(12.9)				(10.2)
Settlements	(0.6)				(0.9)
Purchases, sales and maturities			(54.2)				(66.9)
Transfers out of Level 3	(9.0)		(130.4)				(86.7)
Transfers into Level 3					0
Ending balance	50.1		50.9		50.1		50.9
Other Investment Securities [Member]
Liabilities:
Beginning balance	138.5		205.1		138.6		209.2
Amount of Level 3 net unrealized losses included in net income	(0.2)		0		(0.2)		(0.2)
Net realized and unrealized capital gains (losses):
Included in earnings	(1.0)		2.1		(1.6)		3.5
Included in other comprehensive income	1.3		3.4		0.4		12.3
Other	(0.1)	[1]	(6.0)	[1]	0	[1]	(5.6)	[1]
Purchases	0.1				10.6
Sales	0				(5.9)
Settlements	(8.8)				(12.1)
Purchases, sales and maturities			(33.7)				(35.7)
Transfers out of Level 3	0		(1.8)				(14.6)
Transfers into Level 3					0
Ending balance	130.0		169.1		130.0		169.1
Carrying Value [Member]
Assets:
Mortgage loans	1,576.3				1,576.3				1,509.8
Investment contract liabilities:
With a fixed maturity	38.2				38.2				41.7
Without a fixed maturity	528.0				528.0				511.5
Long-term debt	3,976.5				3,976.5				4,382.5
Estimated Fair Value [Member]
Assets:
Mortgage loans	1,625.7				1,625.7				1,526.1
Investment contract liabilities:
With a fixed maturity	38.7				38.7				42.7
Without a fixed maturity	540.3				540.3				510.9
Long-term debt	4,363.6				4,363.6				4,728.9
Fair Value Inputs Level 1 Separate Account [Member]
Separate Account Fair Value Assets Measured On Recurring Basis [Line Items]
Debt securities	1,120.8				1,120.8				1,059.7
Equity securities	1,120.6				1,120.6				1,231.9
Derivatives	0				0				0
Total	2,241.4				2,241.4				2,291.6
Fair Value Inputs Level 2 Separate Account [Member]
Separate Account Fair Value Assets Measured On Recurring Basis [Line Items]
Debt securities	2,603.2				2,603.2				2,524.9
Equity securities	0				0				0
Derivatives	(1.4)				(1.4)				0.2
Total	2,601.8				2,601.8				2,525.1
Fair Value Inputs Level 3 Separate Account [Member]
Separate Account Fair Value Assets Measured On Recurring Basis [Line Items]
Debt securities	39.0				39.0				56.0
Equity securities	0				0				0
Derivatives	0				0				0
Total	39.0				39.0				56.0
Separate Account Debt Securities [Member]
Separate Account Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation:
Beginning balance	45.5		101.1		56.0		97.3
Total losses accrued to contract holders	(5.4)		(15.7)		(15.6)		(30.4)
Purchases, sales and settlements	0.4		2.3		(0.9)		21.2
Transfers out of Level 3	(1.5)		0		(0.5)		(0.4)
Ending balance	39.0		87.7		39.0		87.7
Separate Account Real Estate [Member]
Separate Account Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation:
Beginning balance			70.3				71.4
Total losses accrued to contract holders			6.2				5.1
Purchases, sales and settlements			0.2				0.2
Transfers out of Level 3			(76.7)				(76.7)
Ending balance			0				0
Commercial Mortgage Backed Securities [Member]
Liabilities:
Beginning balance	43.2				36.9
Amount of Level 3 net unrealized losses included in net income	0				0
Net realized and unrealized capital gains (losses):
Included in earnings	0.8				1.5
Included in other comprehensive income	0.7				2.9
Other	(0.1)	[1]			(0.1)	[1]
Purchases	0				4.6
Sales	(3.7)				(3.7)
Settlements	(1.1)				(2.3)
Transfers out of Level 3	0
Transfers into Level 3					0
Ending balance	39.8				39.8
Equity Securities [Member]
Liabilities:
Beginning balance	32.6				37.9
Amount of Level 3 net unrealized losses included in net income	0				0
Net realized and unrealized capital gains (losses):
Included in earnings	0				0
Included in other comprehensive income	0				0
Other	0.6	[1]			(4.9)	[1]
Purchases	0				0.2
Sales	0				0
Settlements	0				0
Transfers out of Level 3	0
Transfers into Level 3					0
Ending balance	$ 33.2				$ 33.2

[1] Reflects realized and unrealized capital gains and losses on investments supporting our experience-rated and discontinued products, which do not impact our operating results.

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Pension and Other Postretirement Plans (Details) (USD $) In Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010
Pension Plans [Member]
Operating component:
Service cost	$ 0		$ 15.4		$ 0		$ 30.7
Amortization of prior service cost	(0.1)		(0.6)		(0.2)		(1.1)
Total operating component	(0.1)	[1]	14.8	[1]	(0.2)	[1]	29.6	[1]
Financing component:
Interest cost	78.1		76.7		156.2		153.3
Expected return on plan assets	(95.9)		(88.2)		(191.9)		(176.5)
Recognized net actuarial losses	14.6		50.2		29.2		100.5
Total financing component	(3.2)	[1]	38.7	[1]	(6.5)	[1]	77.3	[1]
Net periodic benefit (income) cost	(3.3)		53.5		(6.7)		106.9
OPEB Plans [Member]
Operating component:
Service cost	0		0		0.1		0.1
Amortization of prior service cost	(0.8)		(0.9)		(1.8)		(1.8)
Total operating component	(0.8)	[1]	(0.9)	[1]	(1.7)	[1]	(1.7)	[1]
Financing component:
Interest cost	4.1		4.4		8.3		8.9
Expected return on plan assets	(0.9)		(0.9)		(1.8)		(1.8)
Recognized net actuarial losses	1.2		1.2		2.4		2.3
Total financing component	4.4	[1]	4.7	[1]	8.9	[1]	9.4	[1]
Net periodic benefit (income) cost	$ 3.6		$ 3.8		$ 7.2		$ 7.7

[1] The operating component of this expense is allocated to our business segments and the financing component is allocated to our Corporate Financing segment. Our Corporate Financing segment is not a business segment but is added to our business segments to reconcile to our consolidated results. Refer to Note 15 beginning on page 25 for additional information on our business segments.

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Debt (Details) (USD $)	6 Months Ended
	Jun. 30, 2011		Dec. 31, 2010
Debt Instrument [Line Items]
Total long-term debt	$ 3,976,500,000		$ 4,382,500,000
Less current portion of long-term debt	0	[1]	899,900,000	[1]
Total long-term debt, less current portion	3,976,500,000		3,482,600,000
Paid to the swap counterparty	9,000,000
Income (loss) recorded on termination of interest rate swaps	9,000,000
Aggregate Notional Value of Interest Rate Swaps	250,000,000
Commercial paper outstanding	549,900,000		0
Weighted average interest rate of commercial paper (in hundredths)	0.31%
Unsecured revolving credit agreement	1,500,000,000
Maximum amount of letters of credit issuable under credit facility	200,000,000
Maximum borrowing capacity under revolving credit agreement	2,000,000,000
Range of facility fees under revolving credit agreement, minimum (in hundredths)	.045% to .175%
Facility fee (in hundredths)	0.06%
Ratio of total debt to consolidated capitalization	.5 to 1.0
Senior Notes, 5.75%, Due 2011 [Member]
Debt Instrument [Line Items]
Total long-term debt	0	[2]	450,000,000	[2]
Stated interest rate (in hundredths)	5.75%		5.75%
Debt Instrument Maturity Date	2011		2011
Senior Notes, 7.875%, Due 2011 [Member]
Debt Instrument [Line Items]
Total long-term debt	0	[3]	449,900,000	[3]
Stated interest rate (in hundredths)	7.875%		7.875%
Debt Instrument Maturity Date	2011		2011
Senior Notes, 6.0%, Due 2016 [Member]
Debt Instrument [Line Items]
Total long-term debt	747,800,000		747,600,000
Stated interest rate (in hundredths)	6.00%		6.00%
Debt Instrument Maturity Date	2016		2016
Senior Notes, 6.5%, Due 2018 [Member]
Debt Instrument [Line Items]
Total long-term debt	499,000,000		498,900,000
Stated interest rate (in hundredths)	6.50%		6.50%
Debt Instrument Maturity Date	2018		2018
Senior Notes, 3.95%, Due 2020 [Member]
Debt Instrument [Line Items]
Total long-term debt	742,100,000		741,700,000
Stated interest rate (in hundredths)	3.95%		3.95%
Debt Instrument Maturity Date	2020		2020
Senior Notes, 4.125%, Due 2021 [Member]
Debt Instrument [Line Items]
Total long-term debt	493,100,000		0
Stated interest rate (in hundredths)	4.125%		4.125%
Face amount at maturity	500,000,000
Debt Instrument Maturity Date	2021		2021
Senior Notes, 6.625%, Due 2036 [Member]
Debt Instrument [Line Items]
Total long-term debt	798,700,000		798,700,000
Stated interest rate (in hundredths)	6.625%		6.625%
Debt Instrument Maturity Date	2036		2036
Senior Notes, 6.75%, Due 2037 [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 695,800,000		$ 695,700,000
Stated interest rate (in hundredths)	6.75%		6.75%
Debt Instrument Maturity Date	2037		2037

[1] At December 31, 2010, the 7.875% senior notes due March 2011 and the 5.75% senior notes due June 2011 were classified as current in the accompanying consolidated balance sheet.

[2] The 5.75% senior notes due June 2011 we repaid in June 2011. The 7.875% senior notes due March 2011 were repaid in March 2011.

[3] The 7.875% senior notes due March 2011 were repaid in March 2011.

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Capital Stock (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 31, 2011	Jun. 30, 2011	Dec. 31, 2010	May 20, 2011	Feb. 03, 2011	Jan. 31, 2011
Capital Stock [Abstract]
Repurchases of common shares		$ 735	$ 750
Repurchases of common shares (in shares)		18
Repurchases of common shares subsequent to period-end date		34
Share repurchase program remaining amount		750
Number of performance stock units granted (in shares)		0.6
Number of market stock units granted (in shares)		1.2
Number of restricted stock units granted (in shares)		1.0
Minimum vesting percentage for performance stock units (in hundredths)		0.00%
Maximum vesting percentage for performance stock units (in hundredths)		200.00%
Minimum vesting percentage for market stock units (in hundredths)		0.00%
Maximum vesting percentage for market stock units (in hundredths)		150.00%
Prior period annual dividend per share (in dollars per share)						$ 0.04
Dividend Amount Per Share				$ 0.15	$ 0.15
Total Dividends	$ 57.0	$ 56.8
Percentage of restricted stock unites that will be vested within three years of grant date (in hundredths)		100.00%

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Dividend Restrictions and Statutory Surplus (Details) (USD $)	3 Months Ended
	Jun. 30, 2011	Dec. 31, 2010
Dividend Restrictions and Statutory Surplus [Abstract]
Dividends available	$ 1,100,000,000
Proceeds from dividends received	500,000,000
Statutory capital and surplus	$ 7,100,000,000	$ 6,200,000,000

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Segment Information (Details) (USD $) In Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010
Segment Reporting Information [Line Items]
Revenue from external customers	$ 8,081.7		$ 8,248.7		$ 16,177.2		$ 16,518.3
Operating earnings (loss)	522.8	[1]	450.2	[1]	1,083.0	[1]	880.8	[1]
Segment Reporting Information Operating Earnings To Net Income:
Operating earnings	522.8	[1]	450.2	[1]	1,083.0	[1]	880.8	[1]
Litigation-related insurance proceeds	0	[2]	13.0	[2]	0	[2]	58.5	[2]
Net realized capital gains	13.9		27.8		39.7		114.3
Net income	536.7		491.0		1,122.7		1,053.6
Litigation settlement, after-tax			13.0				58.5
Litigation settlement, pretax			20.0				90.0
Health Care [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	7,602.6		7,759.4		15,223.2		15,524.8
Operating earnings (loss)	512.9	[1]	467.4	[1]	1,068.2	[1]	927.5	[1]
Segment Reporting Information Operating Earnings To Net Income:
Operating earnings	512.9	[1]	467.4	[1]	1,068.2	[1]	927.5	[1]
Group Insurance [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	431.2		450.4		861.5		909.3
Operating earnings (loss)	44.4	[1]	44.4	[1]	87.3	[1]	72.9	[1]
Segment Reporting Information Operating Earnings To Net Income:
Operating earnings	44.4	[1]	44.4	[1]	87.3	[1]	72.9	[1]
Large Case Pension [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	47.9		38.9		92.5		84.2
Operating earnings (loss)	6.2	[1]	6.1	[1]	12.0	[1]	15.8	[1]
Segment Reporting Information Operating Earnings To Net Income:
Operating earnings	6.2	[1]	6.1	[1]	12.0	[1]	15.8	[1]
Corporate Financing [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	0		0		0		0
Operating earnings (loss)	(40.7)	[1]	(67.7)	[1]	(84.5)	[1]	(135.4)	[1]
Segment Reporting Information Operating Earnings To Net Income:
Operating earnings	$ (40.7)	[1]	$ (67.7)	[1]	$ (84.5)	[1]	$ (135.4)	[1]

[1] Operating earnings (loss) excludes net realized capital gains or losses and the other item described in the reconciliation on page 26.

[2] Following a Pennsylvania Supreme Court ruling in June 2009, we recorded litigation-related insurance proceeds of $13.0 million ($20.0 million pretax) and $58.5 million ($90.0 million pretax), respectively, for the three and six months ended June 30, 2010, respectively, from our liability insurers related to certain litigation we settled in 2003. We excluded this item and net realized capital gains from our operating earnings because we believe they neither relate to the ordinary course of our business nor reflect our underlying business performance.

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Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Jun. 30, 2011	Dec. 31, 2010
Liabilities and shareholders' equity:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	2,600,000,000	2,700,000,000
Common stock, shares issued and outstanding (in shares)	372,900,000	384,400,000

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Reinsurance (Details) (USD $) In Millions	Jun. 30, 2011
Reinsurance [Abstract]
Amount of collateralized excess of loss on reinsurance coverage	$ 150

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Discontinued Products (Details) (USD $) In Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010	Jun. 30, 2011		Jun. 30, 2010	Dec. 31, 2010
Discontinued Products [Abstract]
Reserve, beginning of period				$ 884.8		$ 789.2
Operating income (loss)				1.5		(7.4)
Net realized capital gains				19.7		66.9
Reserve, end of period	906.0		848.7	906.0		848.7
Assets:
Debt and equity securities available for sale	2,543.3	[1]		2,543.3	[1]		2,610.3	[1]
Mortgage loans	466.3	[1]		466.3	[1]		498.8	[1]
Other investments	658.7	[1]		658.7	[1]		603.2	[1]
Total investments	3,668.3	[1]		3,668.3	[1]		3,712.3	[1]
Other assets	82.7	[1]		82.7	[1]		90.4	[1]
Collateral received under securities loan agreements	13.7	[1]		13.7	[1]		35.1	[1]
Current and deferred income taxes	36.1	[1]		36.1	[1]		20.7	[1]
Receivable from continuing products	507.5	[1],[2]		507.5	[1],[2]		492.4	[1],[2]
Total assets	4,308.3	[1]		4,308.3	[1]		4,350.9	[1]
Liabilities:
Future policy benefits	3,080.0			3,080.0			3,162.2
Policyholders' funds	9.1			9.1			10.2
Reserve for anticipated future losses on discontinued products	906.0		848.7	906.0		848.7
Collateral payable under securities loan agreements	13.7			13.7			35.1
Other liabilities	299.5			299.5			258.6
Total liabilities	4,308.3	[3]		4,308.3	[3]		4,350.9	[3]
Scheduled Contract Maturities, Settlements And Benefit Payments	$ 105		$ 107	$ 209		$ 214

[1] Assets supporting the discontinued products are distinguished from assets supporting continuing products.

[2] The receivable from continuing products is eliminated in consolidation.

[3] Net unrealized capital gains on the available-for-sale debt securities are included in other liabilities and are not reflected in consolidated shareholders' equity.

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Subsequent Events (Details) (USD $) In Millions	Jul. 31, 2011
Subsequent Events [Abstract]
Purchase price of PayFlex	$ 202

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Consolidated Statements of Shareholders' Equity (Unaudited) (USD $) In Millions	Total USD ($)	Common Stock Outstanding [Member]	Common Stock And Additional Paid In Capital [Member] USD ($)	Retained Earnings [Member] USD ($)	Accumulated Other Comprehensive Loss [Member] USD ($)	Comprehensive Income [Member] USD ($)	Total Stockholders' Equity [Member] USD ($)
Balance at Dec. 31, 2009			$ 470.1	$ 10,256.7	$ (1,223.0)		$ 9,503.8
Balance (in shares) at Dec. 31, 2009		430.8
Comprehensive income:
Net income	1,053.6		0	1,053.6	0	1,053.6	1,053.6
Net unrealized gains on securities			0	0	165.7		165.7
Other comprehensive income			0	0	197.4	197.4	197.4
Total comprehensive income						1,251.0
Net foreign currency and derivative losses			0	0	(33.2)		(33.2)
Pension and OPEB plans			0	0	64.9		64.9
Other comprehensive gains			0	0	197.4	197.4	197.4
Common shares issued for benefit plans, including tax benefits			72.5	0	0		72.5
Common shares issued for benefit plans, including tax benefits (in shares)		1.7
Repurchases of common shares			(0.2)	(480.8)	0		(481.0)
Repurchases of common shares (in shares)		(15.1)
Balance at Jun. 30, 2010			542.4	10,829.5	(1,025.6)		10,346.3
Balance (in shares) at Jun. 30, 2010		417.4
Balance at Dec. 31, 2010	9,890.8		651.5	10,401.9	(1,162.6)		9,890.8
Balance (in shares) at Dec. 31, 2010	384.4	384.4
Comprehensive income:
Net income	1,122.7		0	1,122.7	0	1,122.7	1,122.7
Net unrealized gains on securities			0	0	52.2		52.2
Other comprehensive income			0	0	69.1	69.1	69.1
Total comprehensive income						1,191.8
Net foreign currency and derivative losses			0	0	(2.3)		(2.3)
Pension and OPEB plans			0	0	19.2		19.2
Other comprehensive gains			0	0	69.1	69.1	69.1
Common shares issued for benefit plans, including tax benefits			189.7	0	0		189.7
Common shares issued for benefit plans, including tax benefits (in shares)		6.4
Repurchases of common shares	735.0		(0.2)	(734.8)	0		(735.0)
Repurchases of common shares (in shares)	(18.0)	(17.9)
Dividend declared			0	(113.8)	0		(113.8)
Balance at Jun. 30, 2011	$ 10,423.5		$ 841.0	$ 10,676.0	$ (1,093.5)		$ 10,423.5
Balance (in shares) at Jun. 30, 2011	372.9	372.9

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Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 1,122.7	$ 1,053.6
Adjustments to reconcile net income to net cash provided by operating activities:
Net realized capital gains	(61.1)	(120.1)
Depreciation and amortization	214.9	206.3
Equity in earnings of affiliates, net	(24.5)	(9.7)
Stock-based compensation expense	74.7	57.3
Accretion of net investment discount	(2.6)	(14.4)
Changes in assets and liabilities:
Accrued investment income	(1.2)	(3.3)
Premiums due and other receivables	(313.0)	(219.5)
Income taxes	168.7	56.9
Other assets and other liabilities	(189.0)	27.2
Health care and insurance liabilities	(103.4)	(278.9)
Other, net	10.3	(0.6)
Net cash provided by operating activities	896.5	754.8
Cash flows from investing activities:
Proceeds from sales and maturities of investments	4,947.1	5,475.1
Cost of investments	(5,046.5)	(5,356.3)
Additions to property, equipment and software	(137.1)	(144.5)
Cash used for acquisition, net of cash acquired	(1,098.2)	(0.1)
Net cash used for investing activities	(1,334.7)	(25.8)
Cash flows from financing activities:
Net repayment of long-term debt	(900.0)	0
Net issuance of long-term debt	480.1	0
Net issuance (repayment) of short-term debt	549.8	(30.8)
Deposits and interest credited for investment contracts	2.6	3.1
Withdrawals of investment contracts	(5.3)	(5.8)
Common shares issued under benefit plans	96.6	9.3
Stock-based compensation tax benefits	15.3	3.1
Common shares repurchased	(701.0)	(466.5)
Dividends paid to shareholders	(57.0)	0
Collateral on interest rate swaps	0	(39.0)
Net cash used for financing activities	(518.9)	(526.6)
Net (decrease) increase in cash and cash equivalents	(957.1)	202.4
Cash and cash equivalents, beginning of period	1,867.6	1,203.6
Cash and cash equivalents, end of period	910.5	1,406.0
Supplemental cash flow information:
Interest paid	136.4	121.4
Income taxes paid	$ 413.6	$ 450.8

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Organization

6 Months Ended

Jun. 30, 2011

Organization [Abstract]

Organization

1. Organization

We conduct our operations in three business segments:

· Health Care consists of medical, pharmacy benefits management, dental and vision plans offered on both an Insured basis (where we assume all or a majority of the risk for medical and dental care costs) and an employer-funded basis (where the plan sponsor under an administrative services contract (“ASC”) assumes all or a majority of this risk).  Medical products include point-of-service (“POS”), preferred provider organization (“PPO”), health maintenance organization (“HMO”) and indemnity benefit plans.  Medical products also include health savings accounts (“HSAs”) and Aetna HealthFund®, consumer-directed health plans that combine traditional POS or PPO and/or dental coverage, subject to a deductible, with an accumulating benefit account (which may be funded by the plan sponsor and/or the member in the case of HSAs).  We also offer Medicare and Medicaid products and services and specialty products, such as health information exchange technology services, medical management and data analytics services, behavioral health plans and stop loss insurance, as well as products that provide access to our provider network in select geographies.

· Group Insurance primarily includes group life insurance products offered on an Insured basis, including basic and supplemental group term life, group universal life, supplemental or voluntary programs and accidental death and dismemberment coverage.  Group Insurance also includes (i) group disability products offered to employers on both an Insured and an ASC basis which consist primarily of short-term and long-term disability insurance, (ii) absence management services offered to employers, which include short-term and long-term disability administration and leave management, and (iii) long-term care products that were offered primarily on an Insured basis, which provide benefits covering the cost of care in private home settings, adult day care, assisted living or nursing facilities.  We no longer solicit or accept new long-term care customers.

·  Large Case Pensions manages a variety of retirement products (including pension and annuity products) primarily for tax qualified pension plans.  These products provide a variety of funding and benefit payment distribution options and other services.  Large Case Pensions also includes certain discontinued products (refer to Note 17 beginning on page 26 for additional information).

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Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2011

Summary of Significant Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

Interim Financial Statements

These interim financial statements necessarily rely on estimates, including assumptions as to annualized tax rates.  In the opinion of management, all adjustments necessary for a fair statement of results for the interim periods have been made.  All such adjustments are of a normal, recurring nature.  The accompanying unaudited consolidated financial statements and related notes should be read in conjunction with the consolidated financial statements and related notes presented in our 2010 Annual Report on Form 10-K (our “2010 Annual Report”).  Certain financial information that is normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”), but that is not required for interim reporting purposes, has been condensed or omitted.  We have omitted certain footnote disclosures that would substantially duplicate the disclosures in our 2010 Annual Report, unless the information contained in those disclosures materially changed or is required by GAAP.  We have evaluated subsequent events from the balance sheet date through the date the financials were issued and determined there were no other items to disclose.

Principles of Consolidation

These unaudited consolidated financial statements have been prepared in accordance with GAAP and include the accounts of Aetna and the subsidiaries that we control.  All significant intercompany balances have been eliminated in consolidation.

New Accounting Standards

Troubled Debt Restructurings

In April 2011, the Financial Accounting Standards Board (the “FASB”) released new accounting guidance and additional disclosure requirements relating to a creditor's restructuring of receivables including mortgage loans.  The new guidance is effective beginning July 1, 2011.  Since we have no material problem, restructured or potential problem mortgage loans, we do not expect the adoption of this accounting guidance to have a material impact on our financial position or operating results.

Future Application of Accounting Standards

Deferred Acquisition Costs

In October 2010, the FASB released new accounting guidance for costs associated with acquiring or renewing insurance contracts.  This guidance clarifies that such costs qualify for capitalization when affiliated with the successful acquisition of new and renewed insurance contracts.  The new guidance is effective beginning January 1, 2012.  Since our acquisition costs related to our Health Care and Group Insurance products are expensed as incurred, we do not expect the adoption of this accounting guidance to have an impact on our financial position or operating results.

Reconsideration of Effective Control for Repurchase Agreements

In April 2011, the FASB released new accounting guidance relating to repurchase agreements and other agreements that entitle and obligate a transferor to repurchase or redeem financial assets before maturity.  The guidance prescribes when an entity may recognize a sale upon the transfer of financial assets subject to repurchase agreements.  The new guidance is effective beginning January 1, 2012.  Since we treat these transactions as secured borrowings rather than sales, we do not expect the adoption of this accounting guidance to have a material impact on our financial position or operating results.

Fair Value Measurements

In May 2011, the FASB released new guidance relating to fair value measurements.  This new guidance amends and clarifies certain existing fair value measurement principles and requires additional disclosures for all Level 3 assets, including a qualitative discussion about the sensitivity of Level 3 fair value measurements.  The new requirements are effective beginning January 1, 2012 and are not expected to have a material impact on our financial position or operating results.

Presentations of Comprehensive Income

In June 2011, the FASB released new requirements for the presentation of other comprehensive income in financial statements.  The new requirements eliminate the option that previously existed to present other comprehensive income within the statement of shareholder's equity and require the presentation of other comprehensive income in the statements of income or as a separate statement.  The new requirements are effective beginning January 1, 2012.

Fees Paid to the Federal Government by Health Insurers

In July 2011, the FASB released new accounting guidance relating to mandated fees to be paid to the federal government by health insurers.  The guidance prescribes how to recognize and classify these fees in the statement of income.  The new guidance is effective beginning January 1, 2014.