Fair Value Measurements - Carrying Values and Estimated Fair Values of our Financial Instruments not Measured at Fair value (Details) - USD ($) $ in Millions		Mar. 31, 2024		Dec. 31, 2023		Mar. 31, 2023
Assets:
Mortgage and other loans receivable	[1]	$ 52,475		$ 51,553
Other investments	[1]	15,977		16,217
Short-term investments	[1]	15,077		17,200
Cash		1,816	[1]	2,155	[1]	$ 1,923
Other assets	[1]	12,313		13,089
Liabilities:
Fortitude Re funds withheld payable		28,789		29,484
Other liabilities	[1]	28,245		25,958
Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary
Liabilities:
Short-term and long-term debt	[1]	2,617		2,591
Consolidated Entities, Excluding Consolidated Investments
Liabilities:
Short-term and long-term debt		19,318		19,796
Estimated Fair Value
Assets:
Mortgage and other loans receivable		49,132		48,536
Other investments		902		919
Short-term investments		6,590		6,428
Cash		1,816		2,155
Other assets		43		45
Liabilities:
Policyholder contract deposits associated with investment-type contracts		136,192		130,184
Fortitude Re funds withheld payable		30,153		30,710
Other liabilities		3,585		2,467
Separate account liabilities - investment contracts		91,243		87,215
Estimated Fair Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary
Liabilities:
Debt of consolidated investment entities		2,594		2,569
Estimated Fair Value | Consolidated Entities, Excluding Consolidated Investments
Liabilities:
Short-term and long-term debt		18,177		18,862
Carrying Value
Assets:
Mortgage and other loans receivable		52,475		51,553
Other investments		902		919
Short-term investments		6,590		6,428
Cash		1,816		2,155
Other assets		43		45
Liabilities:
Policyholder contract deposits associated with investment-type contracts		141,851		140,652
Fortitude Re funds withheld payable		30,153		30,710
Other liabilities		3,585		2,467
Separate account liabilities - investment contracts		91,243		87,215
Carrying Value | Assets held-for-sale
Assets:
Short-term investments		25		11
Cash		1		3
Liabilities:
Other liabilities		52		45
Carrying Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary
Liabilities:
Debt of consolidated investment entities		2,617		2,591
Carrying Value | Consolidated Entities, Excluding Consolidated Investments
Liabilities:
Short-term and long-term debt		19,250		19,743
Level 1 | Estimated Fair Value
Assets:
Mortgage and other loans receivable		0		0
Other investments		0		0
Short-term investments		0		0
Cash		1,816		2,155
Other assets		43		45
Liabilities:
Policyholder contract deposits associated with investment-type contracts		0		0
Fortitude Re funds withheld payable		0		0
Other liabilities		0		0
Separate account liabilities - investment contracts		0		0
Level 1 | Estimated Fair Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary
Liabilities:
Debt of consolidated investment entities		0		0
Level 1 | Estimated Fair Value | Consolidated Entities, Excluding Consolidated Investments
Liabilities:
Short-term and long-term debt		0		0
Level 2 | Estimated Fair Value
Assets:
Mortgage and other loans receivable		322		272
Other investments		896		913
Short-term investments		6,590		6,428
Cash		0		0
Other assets		0		0
Liabilities:
Policyholder contract deposits associated with investment-type contracts		86		90
Fortitude Re funds withheld payable		0		0
Other liabilities		3,585		2,467
Separate account liabilities - investment contracts		91,243		87,215
Level 2 | Estimated Fair Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary
Liabilities:
Debt of consolidated investment entities		67		43
Level 2 | Estimated Fair Value | Consolidated Entities, Excluding Consolidated Investments
Liabilities:
Short-term and long-term debt		17,928		18,595
Level 3 | Estimated Fair Value
Assets:
Mortgage and other loans receivable		48,810		48,264
Other investments		6		6
Short-term investments		0		0
Cash		0		0
Other assets		0		0
Liabilities:
Policyholder contract deposits associated with investment-type contracts		136,106		130,094
Fortitude Re funds withheld payable		30,153		30,710
Other liabilities		0		0
Separate account liabilities - investment contracts		0		0
Level 3 | Estimated Fair Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary
Liabilities:
Debt of consolidated investment entities		2,527		2,526
Level 3 | Estimated Fair Value | Consolidated Entities, Excluding Consolidated Investments
Liabilities:
Short-term and long-term debt		$ 249		$ 267

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