Adoption of Accounting Pronouncement - Statement of Cash Flows (Details) - USD ($) $ in Millions	3 Months Ended						6 Months Ended		9 Months Ended						12 Months Ended
	Sep. 30, 2023		Sep. 30, 2022		Mar. 31, 2022		Jun. 30, 2022		Sep. 30, 2023		Sep. 30, 2022		Sep. 30, 2022		Dec. 31, 2022
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)	$ 331		$ (1,052)		$ (1,896)		$ (4,690)		$ 2,049		$ (5,742)		$ (5,742)		$ (5,016)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Amortization of deferred acquisition costs, deferred sales inducements and value of business acquired	211		112		98		206		502		318				444
Net recognized (gains) losses on investments and derivatives					1,825				325		5,957
Changes in operating assets and liabilities:
Interest sensitive contract liabilities					(548)		(1,724)		1,485		(2,052)				(1,337)
Future policy benefits, market risk benefits and reinsurance recoverable					(776)		3,000		2,917		3,837				3,901
Other assets and liabilities					(611)		(910)		387		(1,268)				(1,194)
Net cash provided by operating activities					155		4,726		3,704		6,077				6,258
Net cash used in investing activities					(6,165)		(11,719)		(29,000)		(22,338)				(34,375)
Net cash provided by financing activities					5,463		8,707		27,891		17,115				26,472
Effect of exchange rate changes on cash and cash equivalents					(4)		(20)		2		(18)				(15)
Net increase in cash and cash equivalents					(551)		1,694		2,597		836				(1,660)
Cash and cash equivalents at beginning of year			12,123		10,429	[1]	10,429	[1]	8,769	[1]	10,429	[1]			10,429	[1]
Cash and cash equivalents at end of period	$ 11,366	[1]	11,265	[1]	9,878		12,123		11,366	[1]	11,265	[1]	11,265	[1]	8,769	[1]
Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)					(2,366)		(5,558)				(6,935)				(6,254)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Amortization of deferred acquisition costs, deferred sales inducements and value of business acquired					125		250				375				509
Net recognized (gains) losses on investments and derivatives					1,813						5,958
Changes in operating assets and liabilities:
Interest sensitive contract liabilities					(480)		(1,604)				(2,002)				(1,269)
Future policy benefits, market risk benefits and reinsurance recoverable					(266)		3,933				5,240				5,339
Other assets and liabilities					(734)		(1,139)				(1,586)				(1,527)
Net cash provided by operating activities					155		4,726				6,077				6,258
Net cash used in investing activities					(6,165)		(11,719)				(22,338)				(34,375)
Net cash provided by financing activities					5,463		8,707				17,115				26,472
Effect of exchange rate changes on cash and cash equivalents					(4)		(20)				(18)				(15)
Net increase in cash and cash equivalents					(551)		1,694				836				(1,660)
Cash and cash equivalents at beginning of year			12,123		10,429		10,429		8,769		10,429				10,429
Cash and cash equivalents at end of period			11,265		9,878		12,123				11,265		11,265		8,769
Adoption
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)					470		868				1,193				1,238
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Amortization of deferred acquisition costs, deferred sales inducements and value of business acquired					(27)		(44)				(57)				(65)
Net recognized (gains) losses on investments and derivatives					12						(1)
Changes in operating assets and liabilities:
Interest sensitive contract liabilities					(68)		(120)				(50)				(68)
Future policy benefits, market risk benefits and reinsurance recoverable					(510)		(933)				(1,403)				(1,438)
Other assets and liabilities					123		229				318				333
Net cash provided by operating activities					0		0				0				0
Net cash used in investing activities					0		0				0				0
Net cash provided by financing activities					0		0				0				0
Effect of exchange rate changes on cash and cash equivalents					0		0				0				0
Net increase in cash and cash equivalents					0		0				0				0
Cash and cash equivalents at beginning of year			0		0		0		$ 0		0				0
Cash and cash equivalents at end of period			$ 0		$ 0		$ 0				$ 0		$ 0		$ 0

[1] 1 Includes cash and cash equivalents, restricted cash and cash and cash equivalents of consolidated variable interest entities.