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Investments - Schedule of AFS Securities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Jan. 01, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 131,422		$ 106,859
Allowance for Credit Losses	(459)	$ (311)	(123)	$ (104)
Gross Unrealized Gains	309		4,893
Gross Unrealized Losses	(19,047)		(1,068)
Available-for-sale securities	112,225		110,561
Consolidated Entity, excluding Affiliated Entity
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	120,982		96,458
Allowance for Credit Losses	(458)
Available-for-sale securities	102,404		100,159
Related Party
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	10,440		10,401
Allowance for Credit Losses	(1)	0	0
Gross Unrealized Gains	14		85
Gross Unrealized Losses	(632)		(84)
Available-for-sale securities	9,821		10,402
Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	120,982		96,458
Allowance for Credit Losses	(458)	(311)	(123)	(103)
Gross Unrealized Gains	295		4,808
Gross Unrealized Losses	(18,415)		(984)
Available-for-sale securities	102,404		100,159
US government and agencies | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,333		231
Allowance for Credit Losses	0		0
Gross Unrealized Gains	0		2
Gross Unrealized Losses	(756)		(10)
Available-for-sale securities	2,577		223
US state, municipal and political subdivisions | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,218		1,081
Allowance for Credit Losses	0		0
Gross Unrealized Gains	0		134
Gross Unrealized Losses	(291)		(2)
Available-for-sale securities	927		1,213
Foreign governments | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,207		1,110
Allowance for Credit Losses	(27)	0	0
Gross Unrealized Gains	3		35
Gross Unrealized Losses	(276)		(17)
Available-for-sale securities	907		1,128
Corporate | Related Party
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,028		842
Allowance for Credit Losses	0		0
Gross Unrealized Gains	1		19
Gross Unrealized Losses	(47)		(2)
Available-for-sale securities	982		859
Corporate | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	74,644		62,817
Allowance for Credit Losses	(61)	0	0	(6)
Gross Unrealized Gains	92		4,060
Gross Unrealized Losses	(13,774)		(651)
Available-for-sale securities	60,901		66,226
CLO | Related Party
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,346		2,573
Allowance for Credit Losses	(1)	0	0	(1)
Gross Unrealized Gains	10		5
Gross Unrealized Losses	(276)		(29)
Available-for-sale securities	3,079		2,549
CLO | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	17,722		13,793
Allowance for Credit Losses	(7)	0	0	(1)
Gross Unrealized Gains	115		44
Gross Unrealized Losses	(1,337)		(185)
Available-for-sale securities	16,493		13,652
ABS | Related Party
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	6,066		6,986
Allowance for Credit Losses	0	0	0
Gross Unrealized Gains	3		61
Gross Unrealized Losses	(309)		(53)
Available-for-sale securities	5,760		6,994
ABS | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	11,447		8,890
Allowance for Credit Losses	(29)	(5)	(17)	(6)
Gross Unrealized Gains	15		151
Gross Unrealized Losses	(906)		(35)
Available-for-sale securities	10,527		8,989
CMBS | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,636		2,764
Allowance for Credit Losses	(5)	0	(3)	(10)
Gross Unrealized Gains	6		56
Gross Unrealized Losses	(479)		(59)
Available-for-sale securities	4,158		2,758
RMBS | Consolidated Entity Excluding Variable Interest Entities (VIE) and Related Party
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	6,775		5,772
Allowance for Credit Losses	(329)	$ (306)	(103)	$ (80)
Gross Unrealized Gains	64		326
Gross Unrealized Losses	(596)		(25)
Available-for-sale securities	$ 5,914		$ 5,970

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