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Derivative Instruments (Gains (Losses) On Derivative Instruments Designated As Cash Flow Hedges) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Gains (losses) on derivative instruments designated and qualifying as cash flow hedges
Offset to net investment income	$ 5,511	$ 6,115	$ 5,510
Offset to realized gain (loss)	336	(212)	(513)
Offset to interest and debt expense	$ (283)	$ (270)	$ (284)

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Amount of realized gain (loss) on investment in debt and equity securities.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

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