Earnings per Common Share (Tables)

9 Months Ended

Sep. 30, 2025

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings Per Common Share

Computation of basic and diluted earnings per common share
(In millions, except per share data)	Three months ended September 30,				Nine months ended September 30,
	2025		2024		2025		2024
Numerator:
Net income	$	3,744	$	1,164	$	6,439	$	2,709
Less: Net loss attributable to noncontrolling interest	(2)		(26)		(11)		(30)
Net income attributable to Allstate	3,746		1,190		6,450		2,739
Less: Preferred stock dividends	29		29		88		88
Net income applicable to common shareholders	$	3,717	$	1,161	$	6,362	$	2,651
Denominator:
Weighted average common shares outstanding	263.1		264.6		264.3		264.1
Effect of dilutive potential common shares:
Stock options	2.3		2.6		2.5		2.6
Restricted stock units (non-participating) and performance stock awards	1.0		0.8		1.0		0.7
Weighted average common and dilutive potential common shares outstanding	266.4		268.0		267.8		267.4
Earnings per common share - Basic	$	14.13	$	4.39	$	24.07	$	10.04
Earnings per common share - Diluted	$	13.95	$	4.33	$	23.76	$	9.91
Anti-dilutive share-based awards excluded from diluted earnings per common share	0.5		0.6		0.4		0.5