Fair Value Measurements - Carrying values and estimated fair values of our financial instruments not measured at fair value (Details) - USD ($) $ in Millions		Mar. 31, 2023		Dec. 31, 2022		Mar. 31, 2022	Jan. 01, 2021
Assets:
Mortgage and other loans receivable	[1]	$ 50,830		$ 49,605
Other invested assets	[1]	16,104		15,953
Short-term investments	[1]	13,253		12,376
Cash		1,923	[1]	2,043	[1]	$ 2,537
Other assets		12,967	[1]	12,384	[1]		$ 13,520
Liabilities:
Fortitude Re funds withheld payable		30,368		30,383
Other liabilities		28,595	[1]	26,757	[1]		$ 27,520
Estimated Fair Value
Assets:
Mortgage and other loans receivable		47,810		45,844
Other invested assets		871		854
Short-term investments		6,387		6,668
Cash		1,923		2,043
Other assets		30		33
Liabilities:
Policyholder contract deposits associated with investment-type contracts		133,018		129,293
Fortitude Re funds withheld payable		32,231		32,618
Other liabilities		2,614		3,101
Short-term and long-term debt		20,380		19,603
Debt of consolidated investment entities		3,889		5,533
Separate account liabilities - investment contracts		83,452		80,649
Carrying Value
Assets:
Mortgage and other loans receivable		50,730		49,442
Other invested assets		870		854
Short-term investments		6,387		6,668
Cash		1,923		2,043
Other assets		30		33
Liabilities:
Policyholder contract deposits associated with investment-type contracts		138,269		137,086
Fortitude Re funds withheld payable		32,231		32,618
Other liabilities		2,614		3,101
Short-term and long-term debt		22,028		21,243
Debt of consolidated investment entities		3,944		5,880
Separate account liabilities - investment contracts		83,452		80,649
Level 1 | Estimated Fair Value
Assets:
Mortgage and other loans receivable		0		0
Other invested assets		0		0
Short-term investments		0		0
Cash		1,923		2,043
Other assets		29		24
Liabilities:
Policyholder contract deposits associated with investment-type contracts		0		0
Fortitude Re funds withheld payable		0		0
Other liabilities		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		91		89
Other invested assets		865		848
Short-term investments		6,387		6,668
Cash		0		0
Other assets		1		9
Liabilities:
Policyholder contract deposits associated with investment-type contracts		115		119
Fortitude Re funds withheld payable		0		0
Other liabilities		2,614		3,101
Short-term and long-term debt		20,096		19,328
Debt of consolidated investment entities		1,265		3,055
Separate account liabilities - investment contracts		83,452		80,649
Level 3 | Estimated Fair Value
Assets:
Mortgage and other loans receivable		47,719		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		132,903		129,174
Fortitude Re funds withheld payable		32,231		32,618
Other liabilities		0		0
Short-term and long-term debt		284		275
Debt of consolidated investment entities		2,624		2,478
Separate account liabilities - investment contracts		$ 0		$ 0

[1] See Note 9 for details of balances associated with variable interest entities.