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Value of Business Acquired, Deferred Acquisition Costs and Deferred Sales Inducements - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	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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