Investments (Fixed Maturity Securities AFS - Sales and Disposals and Credit Loss) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Proceeds	$ 28,690	$ 40,625	$ 67,754
Gross investment gains	489	563	935
Gross investment (losses)	(1,178)	(1,732)	(2,704)
Realized gains (losses) on sales and disposals	(689)	(1,169)	(1,769)
Net credit loss (provision) release (change in ACL recognized in earnings)	23	(2)	(103)
Impairment Loss, Debt Securities, Available-for-Sale	65	1,300	40
Net credit loss (provision) release and impairment (losses)	(42)	(1,302)	(143)
Realized Investment Gains (Losses)	(436)	(1,028)	(880)
Equity securities	47	21	(47)
Equity Securities, FV-NI, Unrealized Gain (Loss)	(65)	60	(86)
Equity Securities, FV-NI, Gain (Loss)	(18)	81	(133)
Fixed Maturity Securities
Debt Securities, Available-for-sale [Line Items]
Realized Investment Gains (Losses)	$ (731)	$ (2,471)	$ (1,912)

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