Consolidated Statement of Income (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues
Premiums		$ 7,179	$ 6,882	$ 21,022	$ 20,114
Net investment income		622	646	1,852	1,844
Fee income		121	109	346	324
Net realized investment gains	[1]	23	29	101	54
Other revenues		68	57	197	150
Total revenues		8,013	7,723	23,518	22,486
Claims and expenses
Claims and claim adjustment expenses		5,230	4,655	14,493	13,513
Amortization of deferred acquisition costs		1,169	1,117	3,420	3,259
General and administrative expenses		1,098	1,059	3,280	3,234
Interest expense		84	86	261	265
Total claims and expenses		7,581	6,917	21,454	20,271
Income before income taxes		432	806	2,064	2,215
Income tax expense		36	97	315	313
Net income		$ 396	$ 709	$ 1,749	$ 1,902
Net income per share
Basic (in dollars per share)		$ 1.52	$ 2.65	$ 6.65	$ 7.03
Diluted (in dollars per share)		$ 1.50	$ 2.62	$ 6.59	$ 6.97
Weighted average number of common shares outstanding
Basic (in shares)		259.2	266.1	261.1	268.6
Diluted (in shares)		261.8	268.4	263.4	271.1
Cash dividends declared per common share (in dollars per share)		$ 0.82	$ 0.77	$ 2.41	$ 2.26

[1] Total other-than-temporary impairment (OTTI) losses were $0 million for each of the three months ended September 30, 2019 and 2018, and $(2) million and $(1) million for the nine months ended September 30, 2019 and September 30, 2018, respectively.  Of total OTTI, credit losses of $0 million for each of the three months ended September 30, 2019 and 2018, and $(2) million and $(1) million for the nine months ended September 30, 2019 and September 30, 2018, respectively, were recognized in net realized investment gains.  In addition, unrealized gains (losses) from other changes in total OTTI of $0 million for each of the three months and nine months ended September 30, 2019 and 2018 were recognized in other comprehensive income (loss) as part of changes in net unrealized gains (losses) on investment securities having credit losses recognized in the consolidated statement of income.