Reportable Segments (Tables)

3 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

Schedule of business segments net income disclosures

Reportable segments financial performance
	Three months ended March 31,
($ in millions)	2021		2020
Underwriting income (loss) by segment
Allstate Protection	$	1,660	$	1,351
Run-off Property-Liability	(3)		(3)
Adjusted net income (loss) by segment, after-tax
Protection Services	49		37
Allstate Health and Benefits	65		24
Corporate and Other	(123)		(107)
Reconciling items
Property-Liability net investment income	673		202
Realized capital gains (losses)	426		(162)
Pension and other postretirement remeasurement gains (losses)	310		(318)
Business combination expenses and amortization of purchased intangibles	(56)		(27)
Income tax expense on reconciling items	(622)		(196)
Total reconciling items	731		(501)
Loss from discontinued operations	(4,163)		(370)
Income tax benefit from discontinued operations	370		82
Total from discontinued operations	$	(3,793)	$	(288)
Less: Net loss attributable to noncontrolling interest	(6)		—
Net (loss) income applicable to common shareholders	$	(1,408)	$	513

Schedule of business segments revenue disclosures

Reportable segments revenue information
($ in millions)	Three months ended March 31,
	2021		2020
Property-Liability
Insurance premiums
Auto	$	6,809	$	6,155
Homeowners	2,392		2,037
Other personal lines	505		471
Commercial lines	190		218
Allstate Protection	9,896		8,881
Run-off Property-Liability	—		—
Total Property-Liability insurance premiums	9,896		8,881
Other revenue	385		213
Net investment income	673		202
Realized capital gains (losses)	404		(103)
Total Property-Liability	11,358		9,193
Protection Services
Protection plans	260		206
Roadside assistance	47		51
Finance and insurance products	104		97
Intersegment premiums and service fees (1)	41		38
Other revenue (2)	90		52
Net investment income	10		10
Realized capital gains (losses)	10		(24)
Total Protection Services	562		430
Allstate Health and Benefits
Employer voluntary benefits	263		282
Group health	83		—
Individual accident and health	109		—
Other revenue	80		—
Net investment income	19		20
Realized capital gains (losses)	2		(14)
Total Allstate Health and Benefits	556		288
Corporate and Other
Net investment income	6		14
Realized capital gains (losses)	10		(21)
Total Corporate and Other	16		(7)
Intersegment eliminations (1)	(41)		(38)
Consolidated revenues	$	12,451	$	9,866

(1)Intersegment insurance premiums and service fees are primarily related to Arity and Allstate Roadside and are eliminated in the condensed consolidated financial statements.

(2)Other revenue is primarily related to Arity, Allstate Identity Protection, Allstate Dealer Services, and Allstate Protection Plans.