Business, Basis of Presentation and Summary of Significant Accounting Policies - Transition Table - SCF (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)	$ 614	$ 495	$ 408	$ 85	$ 1,581	$ 1,167	$ 915	$ 1,639	$ 1,602	$ 5,302	$ 6,876
Accretion (Amortization) of Discounts and Premiums, Investments									(1,332)	(992)	(874)
(Gains) losses on investments and from sales of businesses, net									2,800	1,260	(1,543)
(Gains) losses on derivatives, net									3,259	4,150	4,676
Interest credited to policyholder account balances									7,970	3,771	5,628
Insurance Commissions and Fees1									(4,031)	(3,969)	(3,663)
Increase (Decrease) in Accounts and Other Receivables									(1,952)	299	362
Change in market risk benefits									(658)	(3,347)	(839)
Increase (Decrease) in Deferred Policy Acquisition Costs									(660)	(800)	(708)
Increase (Decrease) in Income Taxes Payable									(1,177)	198	856
Increase (Decrease) in Other Operating Assets									(124)	138	(1,008)
Increase (Decrease) in Insurance Liabilities									4,637	3,937	5,002
Increase (Decrease) in Other Operating Liabilities									2,115	360	68
Other, net									197	245	113
Net Cash Provided by (Used in) Operating Activities									13,721	13,044	12,347
Policyholder account balances: Deposits									95,587	103,901	97,206
Policyholder account balances: Withdrawals									(90,876)	(98,591)	(93,130)
Net cash provided by (used in) financing activities									$ (2,940)	(9,948)	(1,126)
Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)										2,558	6,575
Accretion (Amortization) of Discounts and Premiums, Investments										(960)	(855)
(Gains) losses on investments and from sales of businesses, net										1,262	(1,529)
(Gains) losses on derivatives, net										4,317	4,190
Interest credited to policyholder account balances										3,737	5,490
Insurance Commissions and Fees1										(3,970)	(3,638)
Increase (Decrease) in Accounts and Other Receivables										256	389
Change in market risk benefits										0	0
Increase (Decrease) in Deferred Policy Acquisition Costs										(568)	(106)
Increase (Decrease) in Income Taxes Payable										(591)	598
Increase (Decrease) in Other Operating Assets										27	(681)
Increase (Decrease) in Insurance Liabilities										4,058	4,553
Increase (Decrease) in Other Operating Liabilities										341	71
Other, net										245	138
Net Cash Provided by (Used in) Operating Activities										13,204	12,596
Policyholder account balances: Deposits										103,036	96,367
Policyholder account balances: Withdrawals										(97,886)	(92,540)
Net cash provided by (used in) financing activities										(10,108)	(1,375)
Revision of Prior Period, Accounting Standards Update, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)										2,744	301
Accretion (Amortization) of Discounts and Premiums, Investments										(32)	(19)
(Gains) losses on investments and from sales of businesses, net										(2)	(14)
(Gains) losses on derivatives, net										(167)	486
Interest credited to policyholder account balances										34	138
Insurance Commissions and Fees1										1	(25)
Increase (Decrease) in Accounts and Other Receivables										43	(27)
Change in market risk benefits										(3,347)	(839)
Increase (Decrease) in Deferred Policy Acquisition Costs										(232)	(602)
Increase (Decrease) in Income Taxes Payable										789	258
Increase (Decrease) in Other Operating Assets										111	(327)
Increase (Decrease) in Insurance Liabilities										(121)	449
Increase (Decrease) in Other Operating Liabilities										19	(3)
Other, net										0	(25)
Net Cash Provided by (Used in) Operating Activities										(160)	(249)
Policyholder account balances: Deposits										865	839
Policyholder account balances: Withdrawals										(705)	(590)
Net cash provided by (used in) financing activities										$ 160	$ 249