Segment Information (tables)

9 Months Ended

Sep. 30, 2011

Segment Information disclosure

Company's revenues and operating income by segment [Text Block]

(for the three monthsended September 30,in millions)	BusinessInsurance		Financial, Professional & International Insurance		PersonalInsurance			TotalReportableSegments
2011
Premiums	$	2,890	$	799	$	1,916		$	5,605
Net investment income	487		101		102			690
Fee income	78		1		—			79
Other revenues	8		6		17			31
Total operating revenues (1)	$	3,463	$	907	$	2,035		$	6,405
Operating income (loss) (1)	$	294	$	211	$	(108	)	$	397
2010
Premiums	$	2,736	$	820	$	1,866		$	5,422
Net investment income	514		110		111			735
Fee income	64		—		—			64
Other revenues	10		7		18			35
Total operating revenues (1)	$	3,324	$	937	$	1,995		$	6,256
Operating income (1)	$	543	$	212	$	168		$	923

(1)Operating revenues for reportable business segments exclude net realized investment gains (losses). Operating income (loss) for reportable business segments equals net income excluding the after-tax impact of net realized investment gains (losses).

(for the nine monthsended September 30,in millions)	BusinessInsurance		Financial, Professional & International Insurance		PersonalInsurance			TotalReportableSegments
2011
Premiums	$	8,437	$	2,382	$	5,660		$	16,479
Net investment income	1,584		312		331			2,227
Fee income	226		1		—			227
Other revenues	27		19		53			99
Total operating revenues (1)	$	10,274	$	2,714	$	6,044		$	19,032
Operating income (loss) (1)	$	909	$	495	$	(409	)	$	995
2010
Premiums	$	8,027	$	2,499	$	5,466		$	15,992
Net investment income	1,579		331		340			2,250
Fee income	219		—		—			219
Other revenues	23		20		56			99
Total operating revenues (1)	$	9,848	$	2,850	$	5,862		$	18,560
Operating income (1)	$	1,677	$	470	$	246		$	2,393

(1)Operating revenues for reportable business segments exclude net realized investment gains (losses). Operating income (loss) for reportable business segments equals net income excluding the after-tax impact of net realized investment gains (losses).

Business segment reconciliations of revenue and income, net of tax [Text Block]

Business Segment Reconciliations

	Three Months Ended September 30,						Nine Months Ended September 30,
(in millions)	2011			2010			2011			2010
Revenue reconciliation
Earned premiums
Business Insurance:
Workers’ compensation	$	750		$	642		$	2,142		$	1,847
Commercial automobile	491			488			1,444			1,430
Property	405			411			1,207			1,257
General liability	442			435			1,299			1,293
Commercial multi-peril	796			760			2,336			2,200
Other	6			—			9			—
Total Business Insurance	2,890			2,736			8,437			8,027
Financial, Professional & International Insurance:
Fidelity and surety	242			247			726			780
General liability	213			220			637			668
International	310			319			919			950
Other	34			34			100			101
Total Financial, Professional & International Insurance	799			820			2,382			2,499
Personal Insurance:
Automobile	935			932			2,781			2,757
Homeowners and other	981			934			2,879			2,709
Total Personal Insurance	1,916			1,866			5,660			5,466
Total earned premiums	5,605			5,422			16,479			15,992
Net investment income	690			735			2,227			2,250
Fee income	79			64			227			219
Other revenues	31			35			99			99
Total operating revenues for reportable segments	6,405			6,256			19,032			18,560
Net realized investment gains	2			226			41			220
Total consolidated revenues	$	6,407		$	6,482		$	19,073		$	18,780
Income reconciliation, net of tax
Total operating income for reportable segments	$	397		$	923		$	995		$	2,393
Interest Expense and Other (1)	(65		)	(65		)	(214		)	(214		)
Total operating income	332			858			781			2,179
Net realized investment gains	1			147			27			143
Total consolidated net income	$	333		$	1,005		$	808		$	2,322

(1)   The primary component of Interest Expense and Other is after-tax interest expense of $63 million and $62 million for the three months ended September 30, 2011 and 2010, respectively, and $189 million for each of the nine months ended September 30, 2011 and 2010.

Asset reconciliation [Text Block]

(in millions)	September 30,2011		December 31,2010
Asset reconciliation:
Business Insurance	$	78,434	$	78,165
Financial, Professional & International Insurance	13,721		13,461
Personal Insurance	14,211		13,423
Total assets for reportable segments	106,366		105,049
Other assets (1)	567		607
Total consolidated assets	$	106,933	$	105,656

(1) The primary component of other assets at September 30, 2011 was other intangible assets.  The primary components of other assets at December 31, 2010 were other intangible assets and deferred taxes.