Number of Industries Operated In

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Number of Insurance Segments

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of fees and commissions from financial services and banking activities and correspondent clearing. Includes fees from depositor accounts, credit cards, merchant discounts, and fiduciary and trust activities, guarantee fees, investment advisory, management, and administrative fees, transfer agent fees, and insurance commissions.

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Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

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Amount of revenue and income classified as other.

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Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The net realized gains or losses on investments during the period, not including gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Segment Information (Details) $ in Millions	3 Months Ended								12 Months Ended
Segment Information (Details) $ in Millions	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2018 USD ($) segment industry	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Segment Reporting Information
Earned premiums									$ 5,170	$ 4,954	$ 4,710
Total revenues	$ 710	$ 1,915	$ 1,558	$ 1,224	$ 1,411	$ 1,412	$ 1,386	$ 1,523	5,407	5,732	5,449
Other Income									5	5	5
Fees and Commissions									15	16	15
Net Investment Income									619	609	595
Investment gains and losses, net									(402)	148	124
Income (loss) before income taxes	(581)	$ 618	$ 264	$ (50)	197	$ 129	$ 128	$ 276	251	730	812
Identifiable assets	21,935				21,843				$ 21,935	21,843
Number of Industries Operated In \| industry									2
Number of Insurance Segments \| segment									4
Life Insurance Segment
Segment Reporting Information
Earned premiums									$ 250	232	228
Identifiable assets	1,424				1,409				1,424	1,409
Investments Segment
Segment Reporting Information
Identifiable assets	16,741				17,112				16,741	17,112
Consolidated Property and Casualty Insurance Entity
Segment Reporting Information
Identifiable assets	3,285				2,863				3,285	2,863
Corporate and Other [Member]
Segment Reporting Information
Identifiable assets	$ 485				$ 459				485	459
Operating Segments \| Commercial Insurance
Segment Reporting Information
Earned premiums									3,218	3,165	3,089
Total revenues									3,223	3,170	3,094
Fees and Commissions									5	5	5
Income (loss) before income taxes									151	119	184
Operating Segments \| Commercial Insurance \| Commercial Casualty Line
Segment Reporting Information
Earned premiums									1,075	1,072	1,050
Operating Segments \| Commercial Insurance \| Commercial Property Line
Segment Reporting Information
Earned premiums									920	903	867
Operating Segments \| Commercial Insurance \| Commercial Auto Line
Segment Reporting Information
Earned premiums									664	634	594
Operating Segments \| Commercial Insurance \| Workers' Compensation Line
Segment Reporting Information
Earned premiums									324	335	354
Operating Segments \| Commercial Insurance \| Other Commercial Lines
Segment Reporting Information
Earned premiums									235	221	224
Operating Segments \| Personal Insurance
Segment Reporting Information
Earned premiums									1,336	1,241	1,161
Total revenues									1,341	1,246	1,165
Fees and Commissions									5	5	4
Income (loss) before income taxes									(20)	(32)	(12)
Operating Segments \| Personal Insurance \| Personal Auto
Segment Reporting Information
Earned premiums									614	582	543
Operating Segments \| Personal Insurance \| Home Owner Line
Segment Reporting Information
Earned premiums									563	518	486
Operating Segments \| Personal Insurance \| Other Personal Lines
Segment Reporting Information
Earned premiums									159	141	132
Operating Segments \| Excess and Surplus Lines Insurance
Segment Reporting Information
Earned premiums									234	209	183
Total revenues									235	210	184
Fees and Commissions									1	1	1
Income (loss) before income taxes									63	61	62
Operating Segments \| Life Insurance Segment
Segment Reporting Information
Earned premiums									250	232	228
Total revenues									254	237	233
Fees and Commissions									4	5	5
Income (loss) before income taxes									8	(1)	1
Operating Segments \| Investments Segment
Segment Reporting Information
Total revenues									217	757	719
Net Investment Income									619	609	595
Investment gains and losses, net									(402)	148	124
Income (loss) before income taxes									121	664	629
Corporate, Non-Segment [Member]
Segment Reporting Information
Total revenues									137	112	54
Corporate, Non-Segment [Member] \| Reinsurance assumed and other non segment [Member]
Segment Reporting Information
Earned premiums									132	107	49
Corporate, Non-Segment [Member] \| Corporate and Other [Member]
Segment Reporting Information
Other Income									5	5	5
Income (loss) before income taxes									$ (72)	$ (81)	$ (52)