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DAC, VOBA, DSI, and DFEL (DSI) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Amortization, net of interest: |  |  |
Amortization, excluding unlocking, net of interest | $ 19 | $ 23 | $ 21
Ul and Other [Member] |  |  |
Changes in DSI [Roll Forward] |  |  |
Balance as of beginning-of-year | 31 | 35 |
Deferrals | 1 | 1 |
Amortization, net of interest: |  |  |
Amortization, excluding unlocking, net of interest | (2) | (5) |
Balance as of end-of-year | 30 | 31 | 35
Retirement Plan Services Segment [Member] |  |  |
Changes in DSI [Roll Forward] |  |  |
Balance as of beginning-of-year | 14 | 14 |
Deferrals | 4 | 1 |
Amortization, net of interest: |  |  |
Amortization, excluding unlocking, net of interest | (1) | (1) |
Balance as of end-of-year | 17 | 14 | 14
Variable Annuities [Member] |  |  |
Changes in DSI [Roll Forward] |  |  |
Balance as of beginning-of-year | 139 | 150 |
Deferrals | 1 | 3 |
Amortization, net of interest: |  |  |
Amortization, excluding unlocking, net of interest | (12) | (14) |
Balance as of end-of-year | 128 | 139 | 150
Fixed Annuity [Member] |  |  |
Changes in DSI [Roll Forward] |  |  |
Balance as of beginning-of-year | 27 | 30 |
Amortization, net of interest: |  |  |
Amortization, excluding unlocking, net of interest | (4) | (3) |
Balance as of end-of-year | $ 23 | $ 27 | $ 30

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