Condensed Consolidated Statements of Operations (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues
Other revenue	$ 561	$ 560
Net investment income	575	594
Net gains (losses) on investments and derivatives	14	(267)
Total revenues	13,786	12,336
Costs and expenses
Property and casualty insurance claims and claims expense	10,326	7,822
Accident, health and other policy benefits	265	268
Amortization of deferred policy acquisition costs	1,744	1,608
Operating costs and expenses	1,716	1,902
Pension and other postretirement remeasurement (gains) losses	(53)	(247)
Restructuring and related charges	27	12
Amortization of purchased intangibles	81	87
Interest expense	86	83
Total costs and expenses	14,192	11,535
(Loss) income from operations before income tax expense	(406)	801
Income tax (benefit) expense	(85)	151
Net (loss) income	(321)	650
Less: Net loss attributable to noncontrolling interest	(1)	(10)
Net (loss) income attributable to Allstate	(320)	660
Less: Preferred stock dividends	26	26
Net (loss) income applicable to common shareholders, Basic	(346)	634
Net (loss) income applicable to common shareholders, Diluted	$ (346)	$ 634
Earnings per common share:
Net (loss) income applicable to common shareholders per common share - Basic (in dollars per share)	$ (1.31)	$ 2.28
Weighted average common shares - Basic (in shares)	263.5	278.1
Net (loss) income applicable to common shareholders per common share - Basic (in dollars per share)	$ (1.31)	$ 2.25
Weighted average common shares - Diluted (in shares)	263.5	281.8
Property and casualty insurance premiums
Revenues
Insurance premiums and contract charges	$ 12,173	$ 10,981
Accident and health insurance premiums and contract charges
Revenues
Insurance premiums and contract charges	$ 463	$ 468