Consolidated Statements of Earnings (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Revenues:
Premiums, principally supplemental health insurance	$ 5,378		$ 4,872
Net investment income	882		794
Realized investment gains (losses):
Other-than-temporary impairment losses realized	(203)	[1]	(405)	[2]
Sales and redemptions	78		(144)
Derivative and other gains (losses)	80		(30)
Total realized investment gains (losses)	(45)		(579)
Other income	25		30
Total revenues	6,240		5,117
Benefits and expenses:
Benefits and claims	3,646		3,222
Acquisition and operating expenses:
Amortization of deferred policy acquisition costs	287		261
Insurance commissions	435		422
Insurance expenses	564		534
Interest expense	57		45
Other operating expenses	49		42
Total acquisition and operating expenses	1,392		1,304
Total benefits and expenses	5,038		4,526
Earnings before income taxes	1,202		591
Income taxes	417		202
Net earnings	$ 785		$ 389
Net earnings per share:
Basic	$ 1.68		$ 0.83
Diluted	$ 1.68		$ 0.83
Weighted-average outstanding common shares used in computing earnings per share (In thousands):
Basic	465,887		468,012
Diluted	468,533		472,104
Cash dividends per share	$ 0.33		$ 0.30

[1] Includes $28 for credit-related impairments and $175 from change in intent to sell securities

[2] Consisted completely of credit-related impairments