Segment Information (Tables)

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Segment Information

Segment information is summarized in the following table: 

(Dollars in millions)	Three months ended June 30,						Six months ended June 30,
	2016			2015			2016			2015
Revenues:
Commercial lines insurance
Commercial casualty	$	263		$	252		$	520		$	496
Commercial property	215			203			429			399
Commercial auto	147			139			291			275
Workers' compensation	89			90			178			183
Other commercial	57			61			113			125
Commercial lines insurance premiums	771			745			1,531			1,478
Fee revenues	1			1			2			2
Total commercial lines insurance	772			746			1,533			1,480
Personal lines insurance
Personal auto	135			125			266			248
Homeowner	121			114			240			228
Other personal	32			33			65			64
Personal lines insurance premiums	288			272			571			540
Fee revenues	1			—			2			1
Total personal lines insurance	289			272			573			541
Excess and surplus lines insurance	45			42			88			82
Fee revenues	—			1			—			1
Total excess and surplus lines insurance	45			43			88			83
Life insurance premiums	59			52			117			105
Separate account investment management fees	1			1			2			2
Total life insurance	60			53			119			107
Investments
Investment income, net of expenses	149			140			294			279
Realized investment gains, net	44			60			105			107
Total investment revenue	193			200			399			386
Other
Cincinnati Re insurance premiums	10			—			20			—
Other	2			2			3			4
Total other revenue	12			2			23			4
Total revenues	$	1,371		$	1,316		$	2,735		$	2,601
Income (loss) before income taxes:
Insurance underwriting results
Commercial lines insurance	$	26		$	97		$	76		$	123
Personal lines insurance	(20		)	(25		)	8			(28		)
Excess and surplus lines insurance	5			11			22			15
Life insurance	1			1			—			(2		)
Investments	171			178			355			343
Other	(17		)	(14		)	(30		)	(29		)
Total income before income taxes	$	166		$	248		$	431		$	422

Identifiable assets:	June 30, 2016		December 31, 2015
Property casualty insurance	$	2,888	$	2,717
Life insurance	1,422		1,325
Investments	15,506		14,485
Other	335		361
Total	$	20,151	$	18,888