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v3.20.4

Segment Information - Non-insurance Revenue from Customers (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |
Fee income | $ 1,277 | $ 1,301 | $ 1,313
Other Income | 126 | 170 | 105
Revenue from Contract with Customer, Excluding Assessed Tax | 1,360 | 1,404 | 1,418
Installment billing fees [Member] | Operating Segments | P&C Commercial Lines |  |  |
Segment Reporting Information [Line Items] |  |  |
Fee income | 30 | 35 | 34
Installment billing fees [Member] | Operating Segments | P&C Personal Lines |  |  |
Segment Reporting Information [Line Items] |  |  |
Fee income | 34 | 37 | 40
Insurance servicing fees [Member] | Operating Segments | P&C Personal Lines |  |  |
Segment Reporting Information [Line Items] |  |  |
Other Income | 81 | 83 | 84
Administrative services fees [Member] | Operating Segments | Group Benefits [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Fee income | 175 | 180 | 175
Advisor, distribution and other management fees [Member] | Operating Segments | Hartford Funds |  |  |
Segment Reporting Information [Line Items] |  |  |
Fee income | 901 | 911 | 947
Other fees [Member] | Operating Segments | Hartford Funds |  |  |
Segment Reporting Information [Line Items] |  |  |
Fee income | 88 | 88 | 85
Investment management and other fees [Member] | Corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
Fee income | 49 | 50 | 32
Transition service fees [Member] | Corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
Other Income | $ 2 | $ 20 | $ 21

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