Related Party Transactions (Reinsurance Transactions - Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Schedule Of Effect Of Reinsurance On Income Statement [Line Items]
Net liability for FPBs	$ 134,900		$ 136,432
Other invested assets - VIE	16,832		15,086
Net other expenses	1,626	$ 1,313
Embedded Derivative, Fair Value of Embedded Derivative Liability	296		166
Affiliated Entity [Member]
Schedule Of Effect Of Reinsurance On Income Statement [Line Items]
Other invested assets - VIE	$ 3,554		3,644
Affiliated Entity [Member] \| Funds Withheld On Ceded Reinsurance [Member]
Schedule Of Effect Of Reinsurance On Income Statement [Line Items]
Coinsurance Funds Withheld Basis, Percent	75.00%
Embedded Derivative, Fair Value of Embedded Derivative Liability	$ (39)		(37)
Net derivatives gains (losses)	2	(4)
Affiliated Entity [Member] \| Closed Block Liabilities Ceded To MetLife Reinsurance Of Charleston [Member]
Schedule Of Effect Of Reinsurance On Income Statement [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Liability	(314)		$ (244)
Net derivatives gains (losses)	$ 70	$ (98)

Percentage of business ceded on a coinsurance funds withheld basis.

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Schedule Of Effect Of Reinsurance On Income Statement [Line Items]

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Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.

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Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

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Amount, before effect of reinsurance, of present value of future benefit to be paid to or on behalf of policyholder and related expense less present value of future net premium receivable under insurance contract.

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Amount of investments classified as other.

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