Derivatives (Fair Value Hedges) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Collateral, Right to Reclaim Cash	$ 93	$ 98
Fixed maturity securities AFS \| Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	(96)	(111)
Debt Instruments, Carrying Amount	388	454
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	0	3
Mortgages \| Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Debt Instruments, Carrying Amount	305	359
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	(2)	(11)
Future policy benefits [Member] \| Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Debt Instruments, Carrying Amount	2,750	2,863
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	151	191
Policyholder Account Balances [Member] \| Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Debt Instruments, Carrying Amount	2,438	1,911
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	$ 43	$ 25

Debt Instruments, Carrying Amount

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- Definition

Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.

+ References

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Amount of cumulative increase (decrease) in fair value of hedged asset in fair value hedge, attributable to hedged risk, remaining after discontinued hedge.

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Amount of cumulative increase (decrease) in fair value of hedged asset in fair value hedge, attributable to hedged risk.

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