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v3.21.2

Segment Information - Revenues (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | $ 4,835 | $ 4,532 | $ 9,533 | $ 9,243
Net investment income | 581 | 339 | 1,090 | 798
Net realized capital gains (losses) | 147 | 109 | 227 | (122)
Other revenues | 26 | 88 | 38 | 105
Total revenues | 5,589 | 5,068 | 10,888 | 10,024
Corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 14 | 17 | 26 | 34
Commercial Lines | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 2,352 | 2,162 | 4,596 | 4,435
Commercial Lines | Operating Segments [Member] | Workers’ compensation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 768 | 720 | 1,506 | 1,536
Commercial Lines | Operating Segments [Member] | Liability |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 402 | 337 | 777 | 680
Commercial Lines | Operating Segments [Member] | Marine |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 57 | 67 | 115 | 132
Commercial Lines | Operating Segments [Member] | Package business |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 409 | 383 | 802 | 760
Commercial Lines | Operating Segments [Member] | Property |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 205 | 185 | 405 | 390
Commercial Lines | Operating Segments [Member] | Professional liability |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 158 | 149 | 313 | 292
Commercial Lines | Operating Segments [Member] | Bond |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 71 | 68 | 140 | 138
Commercial Lines | Operating Segments [Member] | Assumed reinsurance |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 84 | 72 | 152 | 138
Commercial Lines | Operating Segments [Member] | Automobile |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 198 | 181 | 386 | 369
Personal Lines | AARP Members [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 682 | 633 | 1,360 | 1,340
Personal Lines | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 746 | 703 | 1,488 | 1,486
Personal Lines | Operating Segments [Member] | Property |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 231 | 241 | 461 | 481
Personal Lines | Operating Segments [Member] | Automobile |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 515 | 462 | 1,027 | 1,005
Group Benefits | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 1,427 | 1,423 | 2,845 | 2,814
Group Benefits | Operating Segments [Member] | Group disability |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 744 | 719 | 1,483 | 1,445
Group Benefits | Operating Segments [Member] | Group life |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 604 | 632 | 1,206 | 1,239
Group Benefits | Operating Segments [Member] | Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 79 | 72 | 156 | 130
Hartford Funds | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 296 | 227 | 578 | 474
Hartford Funds | Operating Segments [Member] | Mutual fund and Exchange-Traded Products ("ETP") |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 272 | 207 | 531 | 432
Hartford Funds | Operating Segments [Member] | Talcott Resolution life and annuity separate accounts [2] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | $ 24 | $ 20 | $ 47 | $ 42

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