Consolidated Statements of Earnings (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenues:
Premiums, principally supplemental health insurance	$ 5,210	$ 4,607	$ 15,037	$ 13,288
Net investment income	843	765	2,422	2,218
Realized investment gains (losses):
Other-than-temporary impairment losses	(166)	(13)	(1,100)	(55)
Sales and redemptions	307	8	49	0
Derivative and other gains (losses)	(224)	14	(279)	(72)
Total realized investment gains (losses)	(83)	9	(1,330)	(127)
Other income	17	13	63	59
Total revenues	5,987	5,394	16,192	15,438
Benefits and expenses:
Benefits and claims	3,517	3,102	10,049	8,843
Acquisition and operating expenses:
Amortization of deferred policy acquisition costs	272	243	814	752
Insurance commissions	438	412	1,287	1,213
Insurance expenses	558	505	1,609	1,493
Interest expense	52	39	143	105
Other operating expenses	45	38	132	114
Total acquisition and operating expenses	1,365	1,237	3,985	3,677
Total benefits and expenses	4,882	4,339	14,034	12,520
Earnings before income taxes	1,105	1,055	2,158	2,918
Income taxes	361	365	740	1,011
Net earnings	$ 744	$ 690	$ 1,418	$ 1,907
Net earnings per share:
Basic	$ 1.60	$ 1.47	$ 3.04	$ 4.07
Diluted	$ 1.59	$ 1.46	$ 3.02	$ 4.03
Weighted-average outstanding common shares used in computing earnings per share (In thousands):
Basic	465,910	469,868	466,843	468,880
Diluted	467,793	473,569	469,919	472,859
Cash dividends per share	$ 0.30	$ 0.28	$ 0.90	$ 0.84