Consolidated Statement of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues
Premiums	$ 7,829	$ 7,380	$ 22,831	$ 21,564
Net investment income	771	671	2,290	1,550
Fee income	97	101	302	323
Net realized investment gains (losses)	8	37	113	(48)
Other revenues	100	86	269	195
Total revenues	8,805	8,275	25,805	23,584
Claims and expenses
Claims and claim adjustment expenses	5,464	4,886	15,479	14,782
Amortization of deferred acquisition costs	1,281	1,207	3,742	3,558
General and administrative expenses	1,187	1,109	3,524	3,367
Interest expense	87	87	252	256
Total claims and expenses	8,019	7,289	22,997	21,963
Income before income taxes	786	986	2,808	1,621
Income tax expense	124	159	479	234
Net income	$ 662	$ 827	$ 2,329	$ 1,387
Net income per share
Basic (in dollars per share)	$ 2.65	$ 3.24	$ 9.24	$ 5.44
Diluted (in dollars per share)	$ 2.62	$ 3.23	$ 9.16	$ 5.41
Weighted average number of common shares outstanding
Basic (in shares)	247.7	253.3	250.1	253.5
Diluted (in shares)	250.1	254.3	252.4	254.5
Cash dividends declared per common share (in dollars per share)	$ 0.88	$ 0.85	$ 2.61	$ 2.52