Segment Information (Tables)

3 Months Ended

Mar. 31, 2021

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


(For the three months ended March 31, in millions)	Business Insurance		Bond & Specialty Insurance		Personal Insurance		Total Reportable Segments

2021
Premiums	$	3,799	$	743	$	2,844	$	7,386
Net investment income	523		59		119		701
Fee income	95		—		6		101
Other revenues	53		5		23		81
Total segment revenues (1)	$	4,470	$	807	$	2,992	$	8,269
Segment income (1)	$	317	$	137	$	314	$	768

2020
Premiums	$	3,864	$	667	$	2,698	$	7,229
Net investment income	453		55		103		611
Fee income	102		—		6		108
Other revenues	31		5		22		58
Total segment revenues (1)	$	4,450	$	727	$	2,829	$	8,006
Segment income (1)	$	289	$	122	$	336	$	747

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(1)Segment revenues for reportable business segments exclude net realized investment gains (losses) and revenues included in "interest expense and other." Segment income for reportable business segments equals net income excluding the after-tax impact of net realized investment gains (losses) and income (loss) from "interest expense and other."

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

Business Segment Reconciliations


	Three Months Ended March 31,
(in millions)	2021		2020
Revenue reconciliation
Earned premiums
Business Insurance:
Domestic:
Workers’ compensation	$	811	$	899
Commercial automobile	695		684
Commercial property	531		508
General liability	607		601
Commercial multi-peril	870		886
Other	14		12
Total Domestic	3,528		3,590
International	271		274
Total Business Insurance	3,799		3,864
Bond & Specialty Insurance:
Domestic:
Fidelity and surety	266		257
General liability	331		287
Other	56		58
Total Domestic	653		602
International	90		65
Total Bond & Specialty Insurance	743		667
Personal Insurance:
Domestic:
Automobile	1,370		1,351
Homeowners and Other	1,308		1,176
Total Domestic	2,678		2,527
International	166		171
Total Personal Insurance	2,844		2,698
Total earned premiums	7,386		7,229
Net investment income	701		611
Fee income	101		108
Other revenues	81		58
Total segment revenues	8,269		8,006
Other revenues	—		—
Net realized investment gains (losses)	44		(98)
Total revenues	$	8,313	$	7,908
Income reconciliation, net of tax
Total segment income	$	768	$	747
Interest Expense and Other (1)	(69)		(71)
Core income	699		676
Net realized investment gains (losses)	34		(76)
Net income	$	733	$	600

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(1) The primary component of Interest Expense and Other was after-tax interest expense of $65 million and $66 million for the three months ended March 31, 2021 and 2020, respectively.

Asset reconciliation [Table Text Block]


(in millions)	March 31, 2021		December 31, 2020
Asset reconciliation
Business Insurance	$	88,657	$	88,422
Bond & Specialty Insurance	9,488		9,420
Personal Insurance	18,279		18,328
Total assets by reportable segment	116,424		116,170
Other assets (1)	608		594
Total consolidated assets	$	117,032	$	116,764

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(1)The primary components of other assets at both March 31, 2021 and December 31, 2020 were accrued over-funded benefit plan assets related to the Company’s qualified domestic pension plan and other intangible assets.