Business and Basis of Presentation (Summary of Adoption of New Guidance on Consolidated Statements of Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)	$ 1,326	$ (791)	$ 496	$ 1,477	$ (44)	$ (108)	$ (1,017)	$ (506)	$ 2,508		$ (1,675)	[1]	$ 8,938	[1]
Foreign currency translation adjustments for the period									(264)		(1,131)	[2]	(1,101)	[2]
Net unrealized investment gains (losses)									6,219		(55,845)	[2]	(14,953)	[2]
Interest rate remeasurement of future policy benefits									(8,770)	[3]	63,643	[2]	18,941	[2]
Gain (loss) from changes in non-performance risk on market risk benefits									(693)		938	[2]	(693)	[2]
Other Comprehensive Income (Loss), before Tax									(3,535)		8,241		3,301
Less: Income tax expense (benefit) related to other comprehensive income (loss)									(837)		2,555	[2]	1,151	[2]
Other comprehensive income (loss), net of tax									(2,698)		5,686		2,150
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest									(190)		4,011		11,088
Less: Comprehensive income (loss) attributable to noncontrolling interests									20		(29)		55
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									$ (210)		4,040		11,033
As Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)											(1,462)		7,794
Foreign currency translation adjustments for the period											(1,185)		(1,138)
Net unrealized investment gains (losses)											(52,667)		(11,712)
Interest rate remeasurement of future policy benefits											0		0
Gain (loss) from changes in non-performance risk on market risk benefits											0		0
Other Comprehensive Income (Loss), before Tax											(53,216)		(11,743)
Less: Income tax expense (benefit) related to other comprehensive income (loss)											(12,063)		(2,314)
Other comprehensive income (loss), net of tax											(41,153)		(9,429)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest											(42,615)		(1,635)
Less: Comprehensive income (loss) attributable to noncontrolling interests											(26)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent											(42,589)		(1,690)
Effect of Change
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)											(213)		1,144
Foreign currency translation adjustments for the period											54		37
Net unrealized investment gains (losses)											(3,178)		(3,241)
Interest rate remeasurement of future policy benefits											63,643		18,941
Gain (loss) from changes in non-performance risk on market risk benefits											938		(693)
Other Comprehensive Income (Loss), before Tax											61,457		15,044
Less: Income tax expense (benefit) related to other comprehensive income (loss)											14,618		3,465
Other comprehensive income (loss), net of tax											46,839		11,579
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest											46,626		12,723
Less: Comprehensive income (loss) attributable to noncontrolling interests											(3)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent											$ 46,629		$ 12,723

[1] Prior period amounts adjusted for the adoption of ASU 2018-12: Targeted Improvements to the Accounting for Long-Duration Contracts.

[2] Prior period amounts adjusted for the implementation of ASU 2018-12: Targeted Improvements to the Accounting for Long-Duration Contracts.

[3] See Note 24 for additional information regarding related party transactions.