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v3.21.1

Segment Information - Revenues (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | $ 4,698 | $ 4,711
Net investment income | 509 | 459
Net realized capital gains (losses) | 80 | (231)
Other revenues | 12 | 17
Total revenues | 5,299 | 4,956
Corporate |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 12 | 17
Commercial Lines | Operating Segments [Member] |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 2,244 | 2,273
Commercial Lines | Operating Segments [Member] | Workers’ compensation |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 738 | 816
Commercial Lines | Operating Segments [Member] | Liability |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 375 | 343
Commercial Lines | Operating Segments [Member] | Marine |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 58 | 65
Commercial Lines | Operating Segments [Member] | Package business |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 393 | 377
Commercial Lines | Operating Segments [Member] | Property |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 200 | 205
Commercial Lines | Operating Segments [Member] | Professional liability |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 155 | 143
Commercial Lines | Operating Segments [Member] | Bond |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 69 | 70
Commercial Lines | Operating Segments [Member] | Assumed reinsurance |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 68 | 66
Commercial Lines | Operating Segments [Member] | Automobile |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 188 | 188
Personal Lines | AARP Members [Member] |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 676 | 707
Personal Lines | Operating Segments [Member] |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 742 | 783
Personal Lines | Operating Segments [Member] | Property |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 230 | 240
Personal Lines | Operating Segments [Member] | Automobile |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 512 | 543
Group Benefits | Operating Segments [Member] |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 1,418 | 1,391
Group Benefits | Operating Segments [Member] | Group disability |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 739 | 726
Group Benefits | Operating Segments [Member] | Group life |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 602 | 607
Group Benefits | Operating Segments [Member] | Other |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 77 | 58
Hartford Funds | Operating Segments [Member] |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 282 | 247
Hartford Funds | Operating Segments [Member] | Mutual fund and Exchange-Traded Products ("ETP") |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | 259 | 225
Hartford Funds | Operating Segments [Member] | Talcott Resolution life and annuity separate accounts [2] |  |
Segment Reporting Information [Line Items] |  |
Earned premiums and fee income | $ 23 | $ 22

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