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Value of Business Acquired, Deferred Acquisition Costs and Deferred Sales Inducements - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
VOBA |  |
Finite-Lived Intangible Assets [Line Items] |  |
Adjustment for net unrealized investment gains and losses | $ 86 | $ (152)
VOBA | Minimum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Interest accrual rate utilized to calculate accretion of interest | 0.00% |
VOBA | Maximum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Interest accrual rate utilized to calculate accretion of interest | 4.71% |
DAC |  |
Finite-Lived Intangible Assets [Line Items] |  |
Adjustment for net unrealized investment gains and losses | $ 49 | (30)
Deferred sales inducement, unrealized investment gains | $ 15 | $ (4)

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