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v3.25.0.1

Segment Information - Non-insurance Revenue from Customers (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |
Fee income | $ 1,373 | $ 1,300 | $ 1,349
Other Income | 88 | 84 | 73
Revenue from Contract with Customer, Excluding Assessed Tax | 1,458 | 1,382 | 1,423
Operating Segments | P&C Business Insurance [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Other Income | 1 | 1 | (1)
Operating Segments | P&C Personal Insurance [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Other Income | 85 | 81 | 73
Operating Segments | Employee Benefits [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Other Income | 0 | 0 | 0
Operating Segments | Hartford Funds |  |  |
Segment Reporting Information [Line Items] |  |  |
Other Income | 0 | 0 | 0
Operating Segments | Installment billing fees [Member] | P&C Business Insurance [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Fee income | 43 | 41 | 39
Operating Segments | Installment billing fees [Member] | P&C Personal Insurance [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Fee income | 33 | 30 | 30
Operating Segments | Insurance servicing fees [Member] | P&C Personal Insurance [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Other Income | 85 | 81 | 73
Operating Segments | Administrative services fees [Member] | Employee Benefits [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Fee income | 222 | 217 | 187
Operating Segments | Advisor, distribution and other management fees [Member] | Hartford Funds |  |  |
Segment Reporting Information [Line Items] |  |  |
Fee income | 1,035 | 973 | 1,044
Corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
Other Income | 2 | 2 | 1
Corporate | Investment management and other fees [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Fee income | 40 | 39 | 49
Corporate | Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Other Income | $ 0 | $ 1 | $ 1

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- Definition Income from agency and brokerage operations (includes sales of annuities and supplemental contracts); service charges, commissions, and fees from the sale of insurance and related services; and management fees from separate accounts, deferred annuities, and universal life products. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
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