Segment Information (Tables)

3 Months Ended

Mar. 31, 2023

Segment Reporting [Abstract]

Segment Information

Segment information is summarized in the following table: 

(Dollars in millions)	Three months ended March 31,
	2023		2022
Revenues:
Commercial lines insurance
Commercial casualty	$	377	$	336
Commercial property	299		274
Commercial auto	213		205
Workers' compensation	74		67
Other commercial	93		80
Commercial lines insurance premiums	1,056		962
Fee revenues	1		1
Total commercial lines insurance	1,057		963
Personal lines insurance
Personal auto	166		152
Homeowner	232		195
Other personal	66		55
Personal lines insurance premiums	464		402
Fee revenues	1		1
Total personal lines insurance	465		403
Excess and surplus lines insurance	127		112
Fee revenues	—		1
Total excess and surplus lines insurance	127		113
Life insurance premiums	77		75
Fee revenues	2		1
Total life insurance	79		76
Investments
Investment income, net of expenses	210		185
Investment gains and losses, net	106		(666)
Total investment revenue	316		(481)
Other
Premiums	194		142
Other	3		2
Total other revenues	197		144
Total revenues	$	2,241	$	1,218
Income (loss) before income taxes:
Insurance underwriting results
Commercial lines insurance	$	(2)	$	76
Personal lines insurance	(57)		65
Excess and surplus lines insurance	13		16
Life insurance	8		7
Investments	286		(508)
Other	20		(7)
Total income (loss) before income taxes	$	268	$	(351)

Identifiable assets:	March 31, 2023		December 31, 2022
Property casualty insurance	$	5,229	$	5,178
Life insurance	1,529		1,518
Investments	22,805		22,133
Other	911		903
Total	$	30,474	$	29,732