Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Segment Information

Segment information is summarized in the following table: 

(Dollars in millions)	Three months ended March 31,
	2018			2017
Revenues:
Commercial lines insurance
Commercial casualty	$	265		$	265
Commercial property	228			223
Commercial auto	161			155
Workers' compensation	80			84
Other commercial	56			54
Commercial lines insurance premiums	790			781
Fee revenues	2			1
Total commercial lines insurance	792			782
Personal lines insurance
Personal auto	151			141
Homeowner	136			125
Other personal	38			34
Personal lines insurance premiums	325			300
Fee revenues	1			2
Total personal lines insurance	326			302
Excess and surplus lines insurance	56			48
Life insurance premiums	60			57
Fee revenues	1			2
Total life insurance	61			59
Investments
Investment income, net of expenses	150			149
Investment gains and losses, net	(191		)	160
Total investment revenue	(41		)	309
Other
Cincinnati Re insurance premiums	29			22
Other	1			1
Total other revenues	30			23
Total revenues	$	1,224		$	1,523
Income (loss) before income taxes:
Insurance underwriting results
Commercial lines insurance	$	15		$	(2	)
Personal lines insurance	(9		)	(15		)
Excess and surplus lines insurance	18			18
Life insurance	2			—
Investments	(65		)	286
Other	(11		)	(11		)
Total income (loss) before income taxes	$	(50	)	$	276

Identifiable assets:	March 31, 2018		December 31, 2017
Property casualty insurance	$	2,888	$	2,863
Life insurance	1,418		1,409
Investments	16,748		17,112
Other	416		459
Total	$	21,470	$	21,843