Segments Information (Tables)

9 Months Ended

Sep. 30, 2013

Segment Reporting [Abstract]

Revenues and Income Before Income Tax of Each Operating Segment

Revenues and income before income tax of each operating segment were as follows:

	Periods Ended September 30
	Third Quarter						Nine Months
	2013			2012			2013			2012
	(in millions)
Revenues
Property and casualty insurance
Premiums earned
Personal insurance	$	1,060		$	1,009		$	3,141		$	3,013
Commercial insurance		1,321			1,299			3,928			3,890
Specialty insurance		648			669			1,959			2,005
Total insurance		3,029			2,977			9,028			8,908
Reinsurance assumed		(2	)		—			(2	)		3
		3,027			2,977			9,026			8,911
Investment income		352			373			1,076			1,145
Total property and casualty insurance		3,379			3,350			10,102			10,056
Corporate and other		6			12			34			36
Realized investment gains, net		18			—			335			103
Total revenues	$	3,403		$	3,362		$	10,471		$	10,195
Income (loss) before income tax
Property and casualty insurance
Underwriting
Personal insurance	$	108		$	155		$	333		$	374
Commercial insurance		215			194			534			263
Specialty insurance		108			63			299			194
Total insurance		431			412			1,166			831
Reinsurance assumed		—			15			10			34
		431			427			1,176			865
Increase (decrease) in deferred policy acquisition costs		12			(9	)		69			15
Underwriting income		443			418			1,245			880
Investment income		342			364			1,042			1,117
Other income (charges)		(3	)		1			11			6
Total property and casualty insurance		782			783			2,298			2,003
Corporate and other loss		(61	)		(56	)		(182	)		(173	)
Realized investment gains, net		18			—			335			103
Total income before income tax	$	739		$	727		$	2,451		$	1,933