Derivative Instruments (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ 15
Credit Default Swaps Referencing Indices, Sell Protection
Derivative [Line Items]
Credit Derivative, Maximum Exposure, Undiscounted	2,286	$ 157
Credit Risk Derivatives, at Fair Value, Net	47	11
Credit Default Swaps Referencing Indices, Sell Protection \| NAIC 3
Derivative [Line Items]
Credit Derivative, Maximum Exposure, Undiscounted	2,286
Credit Default Swap, Buying Protection
Derivative [Line Items]
Credit Derivative, Maximum Exposure, Undiscounted	0	150
Credit Risk Derivatives, at Fair Value, Net	0	14
Future Policy Benefits
Derivative [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Asset (Liability), Net	(6,965)	(9,048)
Reinsurance Recoverables
Derivative [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Asset (Liability), Net	701	931
Policyholders' account balances
Derivative [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Asset (Liability), Net	(3,260)	(3,246)
Other assets
Derivative [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Asset (Liability), Net	76	73
Other Liabilities
Derivative [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Asset (Liability), Net	$ (6)	$ (13)

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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-Publisher FASB
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-Topic 815
-SubTopic 30
-Section 50
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Maximum potential amount of future undiscounted payments that could be required under the credit derivative, before reduction for potential recoveries under recourse or collateralization provisions.

+ References

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Fair value of credit risk derivative asset after deduction of credit risk derivative liability.

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Net fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as assets, net of those classified as liabilities.

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