Condensed Consolidated Statements of Operations (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues
Net investment income	$ 648	$ 786
Realized capital gains and losses:
Total other-than-temporary impairment (“OTTI”) losses	(16)	0
OTTI losses reclassified to (from) other comprehensive income (OCI)	2	(1)
Net OTTI losses recognized in earnings	(14)	(1)
Sales and valuation changes on equity investments and derivatives	676	(133)
Total realized capital gains and losses	662	(134)
Total revenues	10,990	9,770
Costs and expenses
Property and casualty insurance claims and claims expense	5,820	5,129
Life contract benefits	497	504
Interest credited to contractholder funds	162	161
Amortization of deferred policy acquisition costs	1,364	1,273
Operating costs and expenses	1,380	1,303
Pension and other postretirement remeasurement gains and losses	15	14
Amortization of purchased intangibles	32	22
Restructuring and related charges	18	19
Interest expense	83	83
Total costs and expenses	9,371	8,508
Gain on disposition of operations	1	1
Income from operations before income tax expense	1,620	1,263
Income tax expense	328	257
Net income	1,292	1,006
Preferred stock dividends	31	29
Net income applicable to common shareholders	$ 1,261	$ 977
Earnings per common share
Net income available to common shareholders per common share - Basic (in dollars per share)	$ 3.79	$ 2.76
Weighted average common shares - Basic (in shares)	332.6	354.1
Net income available to common shareholders per common share - Diluted (in dollars per share)	$ 3.74	$ 2.71
Weighted average common shares - Diluted (in shares)	337.5	359.9
Property and casualty insurance premiums
Revenues
Other revenue	$ 8,802	$ 8,286
Life premiums and contract charges
Revenues
Other revenue	628	616
Other revenue
Revenues
Other revenue	$ 250	$ 216