Fair Value Measurements - Carrying values and estimated fair values of our financial instruments not measured at fair value (Details) - USD ($) $ in Millions		Sep. 30, 2023		Dec. 31, 2022		Sep. 30, 2022	Jan. 01, 2021
Assets:
Mortgage and other loans receivable	[1]	$ 50,922		$ 49,605
Other invested assets	[1]	16,054		15,953
Short-term investments	[1]	13,048		12,376
Cash		1,994	[1]	2,043	[1]	$ 2,294
Other assets		11,857	[1]	12,384	[1]		$ 13,520
Liabilities:
Fortitude Re funds withheld payable		27,691		30,383
Other liabilities(c)		24,202	[1]	26,757	[1]		$ 27,520
Assets held for sale		14,018		0
Liabilities held for sale		10,117		0
Assets held-for-sale
Liabilities:
Assets held for sale		14,018
Liabilities held for sale		10,117
Estimated Fair Value
Assets:
Mortgage and other loans receivable		46,565		45,844
Other invested assets		881		854
Short-term investments		6,589		6,668
Cash		1,994		2,043
Other assets		36		33
Liabilities:
Policyholder contract deposits associated with investment-type contracts		132,475		129,293
Fortitude Re funds withheld payable		31,104		32,618
Other liabilities(c)		733		3,101
Short-term and long-term debt		18,971		19,603
Debt of consolidated investment entities		2,687		5,533
Separate account liabilities - investment contracts		80,907		80,649
Carrying Value
Assets:
Mortgage and other loans receivable		50,922		49,442
Other invested assets		881		854
Short-term investments		6,589		6,668
Cash		1,994		2,043
Other assets		36		33
Liabilities:
Policyholder contract deposits associated with investment-type contracts		140,107		137,086
Fortitude Re funds withheld payable		31,104		32,618
Other liabilities(c)		733		3,101
Short-term and long-term debt		21,236		21,243
Debt of consolidated investment entities		2,717		5,880
Separate account liabilities - investment contracts		80,907		80,649
Carrying Value | Assets held-for-sale
Assets:
Short-term investments		104
Cash		193
Liabilities:
Other liabilities(c)		34
Level 1 | Estimated Fair Value
Assets:
Mortgage and other loans receivable		0		0
Other invested assets		0		0
Short-term investments		0		0
Cash		1,994		2,043
Other assets		35		24
Liabilities:
Policyholder contract deposits associated with investment-type contracts		0		0
Fortitude Re funds withheld payable		0		0
Other liabilities(c)		0		0
Short-term and long-term debt		0		0
Debt of consolidated investment entities		0		0
Separate account liabilities - investment contracts		0		0
Level 2 | Estimated Fair Value
Assets:
Mortgage and other loans receivable		272		89
Other invested assets		875		848
Short-term investments		6,589		6,668
Cash		0		0
Other assets		1		9
Liabilities:
Policyholder contract deposits associated with investment-type contracts		97		119
Fortitude Re funds withheld payable		0		0
Other liabilities(c)		733		3,101
Short-term and long-term debt		18,719		19,328
Debt of consolidated investment entities		36		3,055
Separate account liabilities - investment contracts		80,907		80,649
Level 3 | Estimated Fair Value
Assets:
Mortgage and other loans receivable		46,293		45,755
Other invested assets		6		6
Short-term investments		0		0
Cash		0		0
Other assets		0		0
Liabilities:
Policyholder contract deposits associated with investment-type contracts		132,378		129,174
Fortitude Re funds withheld payable		31,104		32,618
Other liabilities(c)		0		0
Short-term and long-term debt		252		275
Debt of consolidated investment entities		2,651		2,478
Separate account liabilities - investment contracts		$ 0		$ 0

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