Condensed Consolidated Statements of Operations (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues
Net investment income	$ 409	$ 942	$ 830	$ 1,590
Realized capital gains (losses)	704	324	242	986
Total revenues	11,197	11,144	21,273	22,134
Costs and expenses
Property and casualty insurance claims and claims expense	5,222	6,356	10,563	12,176
Shelter-in-Place Payback expense	738	0	948	0
Life contract benefits	497	511	998	1,008
Interest credited to contractholder funds	200	156	332	318
Amortization of deferred policy acquisition costs	1,349	1,362	2,750	2,726
Operating costs and expenses	1,451	1,380	2,850	2,760
Pension and other postretirement remeasurement (gains) losses	73	125	391	140
Restructuring and related charges	14	9	19	27
Amortization of purchased intangibles	29	32	57	64
Impairment of purchased intangibles	0	55	0	55
Interest expense	79	82	160	165
Total costs and expenses	9,652	10,068	19,068	19,439
Gain on disposition of operations	1	2	2	3
Income from operations before income tax expense	1,546	1,078	2,207	2,698
Income tax expense	296	227	408	555
Net income	1,250	851	1,799	2,143
Preferred stock dividends	26	30	62	61
Net income applicable to common shareholders	$ 1,224	$ 821	$ 1,737	$ 2,082
Earnings per common share
Net income available to common shareholders per common share - Basic (in dollars per share)	$ 3.90	$ 2.47	$ 5.50	$ 6.27
Weighted average common shares - Basic (in shares)	313.7	332.0	315.6	332.3
Net income available to common shareholders per common share - Diluted (in dollars per share)	$ 3.86	$ 2.44	$ 5.43	$ 6.17
Weighted average common shares - Diluted (in shares)	317.0	336.9	319.8	337.2
Property and casualty insurance premiums
Revenues
Premiums Earned, Net	$ 9,223	$ 8,986	$ 18,458	$ 17,788
Life premiums and contract charges
Revenues
Insurance premiums, commissions and fees	604	621	1,221	1,249
Other revenue
Revenues
Insurance premiums, commissions and fees	$ 257	$ 271	$ 522	$ 521