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v3.19.3.a.u2

Segment Information - Revenues (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | $ 18,224,000,000 | $ 17,182,000,000 | $ 15,309,000,000
Total net investment income |  |  |  |  |  |  |  |  | 1,951,000,000 | 1,780,000,000 | 1,603,000,000
Net realized capital gains (losses) |  |  |  |  |  |  |  |  | 395,000,000 | (112,000,000) | 165,000,000
Other revenues |  |  |  |  |  |  |  |  | 170,000,000 | 105,000,000 | 85,000,000
Total revenues | $ 5,361,000,000 | $ 5,347,000,000 | $ 5,092,000,000 | $ 4,940,000,000 | $ 4,633,000,000 | $ 4,842,000,000 | $ 4,789,000,000 | $ 4,691,000,000 | 20,740,000,000 | 18,955,000,000 | 17,162,000,000
Property and Casualty, Commercial Insurance [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 8,325,000,000 | 7,081,000,000 | 6,902,000,000
Total net investment income |  |  |  |  |  |  |  |  | 1,129,000,000 | 997,000,000 | 949,000,000
Property and Casualty, Commercial Insurance [Member] | Workers’ compensation |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 3,314,000,000 | 3,341,000,000 | 3,287,000,000
Property and Casualty, Commercial Insurance [Member] | Liability |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 1,064,000,000 | 653,000,000 | 604,000,000
Property and Casualty, Commercial Insurance [Member] | Marine [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 147,000,000 | 0 | 0
Property and Casualty, Commercial Insurance [Member] | Package business |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 1,471,000,000 | 1,364,000,000 | 1,301,000,000
Property and Casualty, Commercial Insurance [Member] | Property |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 728,000,000 | 618,000,000 | 604,000,000
Property and Casualty, Commercial Insurance [Member] | Professional liability |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 447,000,000 | 254,000,000 | 246,000,000
Property and Casualty, Commercial Insurance [Member] | Bond |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 261,000,000 | 241,000,000 | 230,000,000
Property and Casualty, Commercial Insurance [Member] | Assumed Reinsurance [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 180,000,000 | 0 | 0
Property and Casualty, Commercial Insurance [Member] | Automobile |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 713,000,000 | 610,000,000 | 630,000,000
Property and Casualty, Personal Insurance [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 3,235,000,000 | 3,439,000,000 | 3,734,000,000
Total net investment income |  |  |  |  |  |  |  |  | 179,000,000 | 155,000,000 | 141,000,000
Property and Casualty, Personal Insurance [Member] | AARP Members |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 2,900,000,000 | 3,000,000,000.0 | 3,200,000,000
Property and Casualty, Personal Insurance [Member] | Property |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 987,000,000 | 1,041,000,000 | 1,117,000,000
Property and Casualty, Personal Insurance [Member] | Automobile |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 2,248,000,000 | 2,398,000,000 | 2,617,000,000
Property & Casualty Other Operations |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 2,000,000 | 0 | 0
Total net investment income |  |  |  |  |  |  |  |  | 84,000,000 | 90,000,000 | 106,000,000
Group Benefits |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 5,603,000,000 | 5,598,000,000 | 3,677,000,000
Total net investment income |  |  |  |  |  |  |  |  | 486,000,000 | 474,000,000 | 381,000,000
Group Benefits | Group disability |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 2,828,000,000 | 2,746,000,000 | 1,718,000,000
Group Benefits | Group life |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 2,521,000,000 | 2,611,000,000 | 1,745,000,000
Group Benefits | Other |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 254,000,000 | 241,000,000 | 214,000,000
Hartford Funds |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 999,000,000 | 1,032,000,000 | 992,000,000
Total net investment income |  |  |  |  |  |  |  |  | 7,000,000 | 5,000,000 | 3,000,000
Hartford Funds | Third party retail customers [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 907,000,000 | 932,000,000 | 888,000,000
Hartford Funds | Talcott Resolution [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 92,000,000 | 100,000,000 | 104,000,000
Corporate |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earned premiums and fee income |  |  |  |  |  |  |  |  | 60,000,000 | 32,000,000 | 4,000,000
Total net investment income |  |  |  |  |  |  |  |  | $ 66,000,000 | $ 59,000,000 | 23,000,000
Accounting Standards Update 2014-09 [Member] | Operating Expense [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income |  |  |  |  |  |  |  |  |  |  | $ 188

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