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v3.23.3

Segment Information - Revenues (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | $ 5,640 | $ 5,238 | $ 16,570 | $ 15,402
Net investment income | 597 | 487 | 1,652 | 1,537
Net realized losses | (90) | (166) | (161) | (649)
Other revenues | 21 | 21 | 66 | 56
Total revenues | 6,168 | 5,580 | 18,127 | 16,346
Corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 10 | 11 | 30 | 37
Commercial Lines | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 2,962 | 2,713 | 8,634 | 7,833
Commercial Lines | Operating Segments [Member] | Workers’ compensation |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 919 | 892 | 2,741 | 2,596
Commercial Lines | Operating Segments [Member] | Liability |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 522 | 471 | 1,510 | 1,348
Commercial Lines | Operating Segments [Member] | Marine |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 67 | 60 | 192 | 175
Commercial Lines | Operating Segments [Member] | Package business |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 534 | 473 | 1,532 | 1,357
Commercial Lines | Operating Segments [Member] | Property |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 250 | 218 | 722 | 620
Commercial Lines | Operating Segments [Member] | Professional liability |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 198 | 189 | 582 | 549
Commercial Lines | Operating Segments [Member] | Bond |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 82 | 77 | 239 | 226
Commercial Lines | Operating Segments [Member] | Assumed reinsurance |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 156 | 119 | 437 | 337
Commercial Lines | Operating Segments [Member] | Automobile |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 234 | 214 | 679 | 625
Personal Lines | AARP Members [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 731 | 695 | 2,100 | 2,000
Personal Lines | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 791 | 757 | 2,305 | 2,218
Personal Lines | Operating Segments [Member] | Property |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 245 | 235 | 716 | 695
Personal Lines | Operating Segments [Member] | Automobile |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 546 | 522 | 1,589 | 1,523
Group Benefits | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 1,629 | 1,504 | 4,868 | 4,511
Group Benefits | Operating Segments [Member] | Group disability |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 884 | 823 | 2,628 | 2,457
Group Benefits | Operating Segments [Member] | Group life |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 643 | 593 | 1,936 | 1,789
Group Benefits | Operating Segments [Member] | Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 102 | 88 | 304 | 265
Hartford Funds | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 248 | 253 | 733 | 803
Hartford Funds | Operating Segments [Member] | Mutual fund and ETF |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | 229 | 234 | 678 | 742
Hartford Funds | Operating Segments [Member] | Third-party life and annuity separate accounts |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned premiums and fee income | $ 19 | $ 19 | $ 55 | $ 61

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