Investments (Components of Net Investment Gains Losses - Asset Type) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Marketable Securities, Gain (Loss) [Abstract]
Fixed maturity securities AFS (1)	$ (2,471)	$ (1,912)	$ 66
Equity Securities, FV-NI, Gain (Loss)	81	(133)	108
Other net investment gains (losses):
Mortgage loans	(270)	21	(18)
Real estate and REJV (excluding changes in estimated fair value)	69	653	502
OLPI (excluding changes in estimated fair value)	12	53	(6)
Other gains (losses) (2)	(158)	178	131
Subtotal - investment portfolio gains (losses)	(2,737)	(1,140)	783
Change In Estimated Fair Value Of Other Limited Partnership Interests And Real Estate Joint Ventures	(6)	(14)	45
Non-investment portfolio gains (losses)	(81)	(106)	715
Subtotal	(87)	(120)	760
Net investment gains (losses)	$ (2,824)	$ (1,260)	$ 1,543

Change In Estimated Fair Value Of Other Limited Partnership Interests And Real Estate Joint Ventures.

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The net gain or loss incurred on assets and liabilities held by consolidated securitizations entities and all other gains and losses.

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Amount of unrealized and realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of realized and unrealized gain (loss) on investment.

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The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.

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The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes.

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The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes.

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