Fair Value Measurement - Fair Value Level 3 Rollforward Recurring Basis (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
FG VIEs’ Assets
Fair Value Level 3 Rollforward
Fair value at beginning of period	$ 267	$ 281	$ 260	$ 296
Total pre-tax realized and unrealized gains (losses) recorded in:
Net income (loss)	1	19	(3)	18
Other comprehensive income (loss)	0	0	0	0
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	(26)	(13)	(34)	(27)
Consolidations			15
Deconsolidations	(15)		(15)
Transfers out of Level 3	(4)
Fair value at end of period	223	287	223	287
Change in unrealized gains/(losses) related to financial instruments held	2	19	(2)	18
Assets of Consolidated Investment Vehicles | Corporate securities
Fair Value Level 3 Rollforward
Fair value at beginning of period	83		91
Total pre-tax realized and unrealized gains (losses) recorded in:
Net income (loss)	7		6
Other comprehensive income (loss)	0		0
Purchases	0		1
Sales	0		(8)
Settlements	0		0
Consolidations			0
Deconsolidations	0		0
Transfers out of Level 3	0
Fair value at end of period	90		90
Change in unrealized gains/(losses) related to financial instruments held	7		5
Assets of Consolidated Investment Vehicles | Equity securities and warrants
Fair Value Level 3 Rollforward
Fair value at beginning of period	243		239
Total pre-tax realized and unrealized gains (losses) recorded in:
Net income (loss)	16		26
Other comprehensive income (loss)	0		0
Purchases	5		5
Sales	(6)		(12)
Settlements	0		0
Consolidations			0
Deconsolidations	0		0
Transfers out of Level 3	0
Fair value at end of period	258		258
Change in unrealized gains/(losses) related to financial instruments held	10		18
Assets of Consolidated Investment Vehicles | Assets of CIVs- Equity Securities
Fair Value Level 3 Rollforward
Fair value at beginning of period		1		2
Total pre-tax realized and unrealized gains (losses) recorded in:
Net income (loss)		2		4
Other comprehensive income (loss)		0		0
Purchases		14		22
Sales		(16)		(27)
Settlements		0		0
Fair value at end of period		1		1
Change in unrealized gains/(losses) related to financial instruments held		0		3
Assets of Consolidated Investment Vehicles | Structured products
Fair Value Level 3 Rollforward
Fair value at beginning of period	0		0
Total pre-tax realized and unrealized gains (losses) recorded in:
Net income (loss)	(3)		(3)
Other comprehensive income (loss)	0		0
Purchases	42		42
Sales	(21)		(21)
Settlements	0		0
Consolidations			0
Deconsolidations	20		20
Transfers out of Level 3	0
Fair value at end of period	38		38
Change in unrealized gains/(losses) related to financial instruments held	(3)		(3)
Other
Fair Value Level 3 Rollforward
Fair value at beginning of period	28	37	27	(54)
Total pre-tax realized and unrealized gains (losses) recorded in:
Net income (loss)	10	(6)	11	(24)
Other comprehensive income (loss)	(1)	0	(1)	1
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	0
Consolidations			0
Deconsolidations	0		0
Transfers out of Level 3	0
Fair value at end of period	37	31	37	31
Change in unrealized gains/(losses) related to financial instruments held	10	(6)	11	(25)
Change in unrealized gains/(losses) included in OCI related to financial instruments	(1)		(1)	1
Variable Interest Liabilities with Recourse
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at start of period		(318)		(333)
Total Pretax Realized And Unrealized Gains (Losses) Recorded As Liabilities [Abstract]
Net income (loss)		(10)		(7)
Other comprehensive income (loss)		(2)		(3)
Issuances		0		0
Settlements		10		23
Fair value at end of period		(320)		(320)
Change in unrealized gains/(losses) included in earnings related to financial instruments		(11)		(6)
Change in unrealized gains/(losses) included in OCI related to financial instruments		(2)		(3)
Variable Interest Liabilities
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at start of period	(335)		(289)
Total Pretax Realized And Unrealized Gains (Losses) Recorded As Liabilities [Abstract]
Net income (loss)	11		26
Other comprehensive income (loss)	3		3
Issuances	0		0
Settlements	24		65
Consolidations			(102)
Deconsolidations	15		15
Fair value at end of period	(282)		(282)
Change in unrealized gains/(losses) included in earnings related to financial instruments	11		49
Change in unrealized gains/(losses) included in OCI related to financial instruments	3		3
Liabilities of CIVs
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at start of period	(3,650)	(1,973)	(3,705)	(1,227)
Total Pretax Realized And Unrealized Gains (Losses) Recorded As Liabilities [Abstract]
Net income (loss)	250	(8)	295	(2)
Other comprehensive income (loss)	37	0	56	0
Issuances	(1,027)	(406)	(1,408)	(1,158)
Settlements	29	2	401	2
Consolidations			0
Deconsolidations	374		374
Fair value at end of period	(3,987)	(2,385)	(3,987)	(2,385)
Change in unrealized gains/(losses) included in earnings related to financial instruments	262	(2)	303	4
Change in unrealized gains/(losses) included in OCI related to financial instruments	37		56
Obligations of state and political subdivisions | Fixed-maturity securities, available-for-sale
Fair Value Level 3 Rollforward
Fair value at beginning of period	70	103	72	101
Total pre-tax realized and unrealized gains (losses) recorded in:
Net income (loss)	(1)	2	0	3
Other comprehensive income (loss)	(3)	6	(8)	8
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	(14)	(1)	(13)	(2)
Consolidations			0
Deconsolidations	0		0
Transfers out of Level 3	(1)
Fair value at end of period	51	110	51	110
Change in unrealized gains/(losses) included in OCI related to financial instruments	(4)	6	(10)	8
Corporate securities | Fixed-maturity securities, available-for-sale
Fair Value Level 3 Rollforward
Fair value at beginning of period		28		30
Total pre-tax realized and unrealized gains (losses) recorded in:
Net income (loss)		0		2
Other comprehensive income (loss)		20		16
Purchases		0		0
Sales		(48)		(48)
Settlements		0		0
Fair value at end of period		0		0
Change in unrealized gains/(losses) included in OCI related to financial instruments		0		0
RMBS | Fixed-maturity securities, available-for-sale
Fair Value Level 3 Rollforward
Fair value at beginning of period	200	246	216	255
Total pre-tax realized and unrealized gains (losses) recorded in:
Net income (loss)	6	5	10	7
Other comprehensive income (loss)	(11)	9	(19)	9
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	(11)	(12)	(23)	(23)
Consolidations			0
Deconsolidations	0		0
Transfers out of Level 3	0
Fair value at end of period	184	248	184	248
Change in unrealized gains/(losses) included in OCI related to financial instruments	(10)	9	(17)	9
Asset-backed securities | Fixed-maturity securities, available-for-sale
Fair Value Level 3 Rollforward
Fair value at beginning of period	842	941	863	940
Total pre-tax realized and unrealized gains (losses) recorded in:
Net income (loss)	(3)	5	0	11
Other comprehensive income (loss)	(30)	1	(37)	6
Purchases	10	117	35	211
Sales	(9)	(38)	(12)	(80)
Settlements	(5)	(51)	(44)	(113)
Consolidations			0
Deconsolidations	0		0
Transfers out of Level 3	0
Fair value at end of period	805	975	805	975
Change in unrealized gains/(losses) included in OCI related to financial instruments	(29)	3	(36)	8
Credit Risk Contract
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Fair value at start of period	(156)	(120)	(154)	(100)
Total pre-tax realized and unrealized gains (losses) recorded in:
Net income (loss)	9	(33)	6	(52)
Other comprehensive income (loss)	0	0	0	0
Issuances	0	0	0	0
Settlements	0	(1)	1	(2)
Consolidations			0
Deconsolidations	0		0
Fair value at end of period	(147)	(154)	(147)	(154)
Change in unrealized gains/(losses) included in earnings related to financial instruments	$ 8	$ (35)	$ 5	$ (55)