Equity (Components of Net Unrealized Appreciation Depreciation of Balances Carried at Fair Value) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024		Dec. 31, 2023		Dec. 31, 2022
Comprehensive Income Net Of Tax [Line Items]
Fixed maturity securities available-for-sale		$ (77,617)	[1]	$ (60,467)	[2]
Other invested assets		(1,242)		(1,171)
Accumulated Other Comprehensive Income Loss Change In Component During Period		(1,034)		2,278		$ (11,818)
Change In Net Unrealized Appreciation Depreciation [Member]
Comprehensive Income Net Of Tax [Line Items]
Fixed maturity securities available-for-sale		(758)		(2,289)		(11,632)
Other invested assets	[3]	$ (276)		$ (11)		$ (186)

[1] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of December 31, 2024, the fair value of such investments was $966 million

[2] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of December 31, 2023, the fair value of such investments was $856 million.

[3] Includes cash flow hedges. See Note 12 for additional information on cash flow hedges.