Variable Interest Entities - Consolidated VIEs (Details) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2023		Dec. 31, 2022		Sep. 30, 2022	Jan. 01, 2021
Assets:
Bonds available for sale	[1]	$ 214,940		$ 226,156
Other bond securities, at fair value (See Note 5)	[1]	4,840		4,485
Equity securities	[1]	515		575
Mortgage and other loans receivable	[1]	50,922		49,605
Investment real estate		2,208		2,153
Short-term investments	[1]	13,048		12,376
Cash		1,994	[1]	2,043	[1]	$ 2,294
Accrued investment income	[1]	2,574		2,376
Other assets		11,857	[1]	12,384	[1]		$ 13,520
Total assets		521,521		522,228			598,841
Liabilities:
Other		24,202	[1]	26,757	[1]		27,520
Total liabilities		478,308		478,774			$ 532,906
Real Estate and Investment Entities
Liabilities:
Off-balance sheet exposure associated with VIEs		1,900		2,100
Real Estate and Investment Entities | External parties
Liabilities:
Off-balance sheet exposure associated with VIEs		400		600
Consolidated VIE
Assets:
Bonds available for sale		141		3,672
Other bond securities, at fair value (See Note 5)		2
Equity securities		7		51
Mortgage and other loans receivable		2,081		2,221
Alternative investments		2,849		2,842
Investment real estate		1,414		1,731
Short-term investments		164		472
Cash		54		71
Accrued investment income		6		9
Other assets		84		172
Total assets		6,802		11,241
Liabilities:
Debt of consolidated investment entities		2,283		5,694
Other		74		132
Total liabilities		2,357		5,826
Consolidated VIE | Real Estate and Investment Entities
Assets:
Bonds available for sale		0		0
Other bond securities, at fair value (See Note 5)		2
Equity securities		7		51
Mortgage and other loans receivable		0		0
Alternative investments		2,849		2,842
Investment real estate		1,414		1,731
Short-term investments		134		191
Cash		54		71
Accrued investment income		0		0
Other assets		80		102
Total assets		4,540		4,988
Liabilities:
Debt of consolidated investment entities		1,163		1,358
Other		70		85
Total liabilities		1,233		1,443
Consolidated VIE | Securitization Vehicles(e)
Assets:
Bonds available for sale		141		3,672
Other bond securities, at fair value (See Note 5)		0
Equity securities		0		0
Mortgage and other loans receivable		2,081		2,221
Alternative investments		0		0
Investment real estate		0		0
Short-term investments		30		281
Cash		0		0
Accrued investment income		6		9
Other assets		4		70
Total assets		2,262		6,253
Liabilities:
Debt of consolidated investment entities		1,120		4,336
Other		4		47
Total liabilities		1,124		4,383
Unconsolidated VIE
Assets:
Total assets		513,996		505,521
Liabilities:
Off-balance sheet exposure associated with VIEs		4,472		$ 4,685
Unconsolidated VIE | Securitization Vehicles(e)
Assets:
Total assets		3,600
Liabilities:
Total liabilities		3,100
Pre-tax loss on deconsolidation		$ 14

[1] See Note 10 for details of balances associated with variable interest entities.