Investments (Investment Related Gains (Losses) Net) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Investments [Abstract]
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	$ (16)	$ 4	$ (36)	$ (38)
Gain on investment activity	68	11	100	42
Available-for-sale Securities, Realized Losses, Excluding Other than Temporary Impairments	(230)	(37)	(364)	(112)
Gain (Loss) on Sale of Equity Investments	(5)	(4)	(1)	(2)
Other impairment losses and change in mortgage loan provision	2	(9)	(8)	(6)
Derivatives and other, net	4	15	12	17
Total investment related gains (losses), net	(271)	(123)	(420)	(200)
Change In Fair Value Of Certain Limited Partnership Investments And Other, Net	0	10	1	7
Impairment Losses On Debt Securities Available for Sale	(1)	0	(1)	(1)
Gain (Loss) on Sale of Derivatives	(119)	(93)	(218)	(124)
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net	26	(20)	103	17
Gains (Losses) on Sales of Other Real Estate	$ 0	$ 0	$ (8)	$ 0