Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues:
Net premium income		$ 4,441	$ 4,664	$ 9,034	$ 9,346
Net investment income		993	870	1,918	1,774
Net investment gains (losses)		89	(170)	396	(633)
Other income (loss)		41	43	85	82
Total revenues		5,564	5,407	11,433	10,569
Benefits and expenses:
Benefits and claims, net		2,653	2,897	5,387	5,837
Acquisition and operating expenses:
Amortization of deferred policy acquisition costs		280	289	592	622
Insurance commissions		315	332	641	668
Insurance and other expenses	[1]	881	756	1,712	1,536
Interest expense		62	63	124	117
Total acquisition and operating expenses		1,538	1,440	3,069	2,943
Total benefits and expenses		4,191	4,337	8,456	8,780
Earnings before income taxes		1,373	1,070	2,977	1,789
Income taxes		268	265	579	419
Net earnings		$ 1,105	$ 805	$ 2,398	$ 1,370
Net earnings per share:
Basic (in dollars per share)		$ 1.63	$ 1.12	$ 3.51	$ 1.90
Diluted (in dollars per share)		$ 1.62	$ 1.12	$ 3.49	$ 1.89
Weighted-average outstanding common shares used in computing earnings per share (In thousands):
Basic (in shares)		678,050	717,889	683,464	721,128
Diluted (in shares)		680,920	719,764	686,400	723,638
Cash dividends per share		$ 0.33	$ 0.28	$ 0.66	$ 0.56

[1] Includes expense of $48 for the three- and six-month periods ended June 30, 2021 and $15 for the six-month period ended June 30, 2020 for the early extinguishment of debt.