Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019
Revenues:
Net premiums, principally supplemental health insurance	$ 4,664	$ 4,681	$ 9,346		$ 9,373
Net investment income	870	878	1,774		1,756
Net investment gains (losses)	(170)	(66)	(633)		5
Other income (loss)	43	18	82		34
Total revenues	5,407	5,511	10,569		11,168
Benefits and expenses:
Benefits and claims, net	2,897	2,964	5,837		5,932
Acquisition and operating expenses:
Amortization of deferred policy acquisition costs	289	309	622		649
Insurance commissions	332	329	668		661
Insurance and other expenses (1)	756	743	1,536	[1]	1,460
Interest expense	63	57	117		115
Total acquisition and operating expenses	1,440	1,438	2,943		2,885
Total benefits and expenses	4,337	4,402	8,780		8,817
Earnings before income taxes	1,070	1,109	1,789		2,351
Income taxes	265	292	419		606
Net earnings	$ 805	$ 817	$ 1,370		$ 1,745
Net earnings per share:
Basic (in dollars per share)	$ 1.12	$ 1.10	$ 1.90		$ 2.33
Diluted (in dollars per share)	$ 1.12	$ 1.09	$ 1.89		$ 2.32
Weighted-average outstanding common shares used in computing earnings per share (In thousands):
Basic (in shares)	717,889	745,153	721,128		748,271
Diluted (in shares)	719,764	748,849	723,638		752,302
Cash dividends per share	$ 0.28	$ 0.27	$ 0.56		$ 0.54
4.00% senior notes paid January 2020
Expense on extinguishment of debt			$ 15

[1] Includes expense of $15 for the early extinguishment of debt