Consolidated Statements of Earnings (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenues:
Premiums, principally supplemental health insurance	$ 4,956	$ 4,333	$ 9,828	$ 8,681
Net investment income	784	727	1,579	1,453
Realized investment gains (losses):
Other-than-temporary impairment losses	(528)	0	(933)	(42)
Sales and redemptions	(182)	14	(326)	(7)
Derivative and other gains (losses)	42	(103)	12	(86)
Total realized investment gains (losses)	(668)	(89)	(1,247)	(135)
Other income	16	9	44	45
Total revenues	5,088	4,980	10,204	10,044
Benefits and expenses:
Benefits and claims	3,310	2,885	6,532	5,741
Acquisition and operating expenses:
Amortization of deferred policy acquisition costs	264	229	542	509
Insurance commissions	427	398	849	801
Insurance expenses	543	508	1,051	988
Interest expense	46	33	92	66
Other operating expenses	45	38	86	76
Total acquisition and operating expenses	1,325	1,206	2,620	2,440
Total benefits and expenses	4,635	4,091	9,152	8,181
Earnings before income taxes	453	889	1,052	1,863
Income taxes	173	308	378	646
Net earnings	$ 280	$ 581	$ 674	$ 1,217
Net earnings per share:
Basic	$ 0.60	$ 1.24	$ 1.44	$ 2.60
Diluted	$ 0.60	$ 1.23	$ 1.43	$ 2.58
Weighted-average outstanding common shares used in computing earnings per share (In thousands):
Basic	466,498	468,824	467,317	468,377
Diluted	469,752	472,539	470,990	472,497
Cash dividends per share	$ 0.30	$ 0.28	$ 0.60	$ 0.56