Investments (Fixed Maturity Securities AFS - Sales and Disposals and Credit Loss) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Debt Securities, Available-for-sale [Line Items]
Proceeds	$ 11,520	$ 6,143	$ 22,521	$ 13,384
Gross investment gains	133	63	251	149
Gross investment (losses)	(414)	(171)	(719)	(522)
Realized gains (losses) on sales and disposals	(281)	(108)	(468)	(373)
Net credit loss (provision) release (change in ACL recognized in earnings)	50	(14)	29	10
Impairment (losses)	0	(2)	(3)	(5)
Net credit loss (provision) release and impairment (losses)	50	(16)	26	(5)
Net investment gains (losses)	(238)	(145)	(480)	(446)
Equity securities	4	(18)	(3)	(40)
Equity Securities, FV-NI, Unrealized Gain (Loss)	16	63	7	73
Equity Securities, FV-NI, Gain (Loss)	20	45	4	33
Fixed Maturity Securities
Debt Securities, Available-for-sale [Line Items]
Net investment gains (losses)	$ (231)	$ (124)	$ (442)	$ (368)

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