Fair Value Measurements - Carrying Values and Estimated Fair Values of our Financial Instruments not Measured at Fair value (Details) - USD ($) $ in Millions		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Assets:
Mortgage and other loans receivable	[1]	$ 3,868	$ 4,441
Other investments		9,828	6,368
Short-term investments	[1]	14,462	12,865
Cash		1,302	1,540	$ 1,482
Other assets	[1]	4,735	5,425
Liabilities:
Fortitude Re funds withheld payable		3,207	3,527
Long-term debt		8,922	10,606
Consolidated Entities, Excluding Consolidated Investments
Liabilities:
Long-term debt		8,764	10,375
Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary
Liabilities:
Long-term debt	[1]	158	231
Estimated Fair Value
Assets:
Mortgage and other loans receivable		3,752	4,355
Other investments		583	651
Short-term investments		4,673	3,502
Cash		1,302	1,540
Other assets		15	32
Liabilities:
Fortitude Re funds withheld payable		3,335	3,675
Estimated Fair Value | Consolidated Entities, Excluding Consolidated Investments
Liabilities:
Long-term debt		8,221	9,890
Estimated Fair Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary
Liabilities:
Long-term debt		158	231
Carrying Value
Assets:
Mortgage and other loans receivable		3,868	4,441
Other investments		583	651
Short-term investments		4,673	3,502
Cash		1,302	1,540
Other assets		15	32
Liabilities:
Fortitude Re funds withheld payable		3,335	3,675
Carrying Value | Consolidated Entities, Excluding Consolidated Investments
Liabilities:
Long-term debt		8,764	10,375
Carrying Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary
Liabilities:
Long-term debt		158	231
Level 1 | Estimated Fair Value
Assets:
Mortgage and other loans receivable		0	0
Other investments		0	0
Short-term investments		0	0
Cash		1,302	1,540
Other assets		15	32
Liabilities:
Fortitude Re funds withheld payable		0	0
Level 1 | Estimated Fair Value | Consolidated Entities, Excluding Consolidated Investments
Liabilities:
Long-term debt		0	0
Level 1 | Estimated Fair Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary
Liabilities:
Long-term debt		0	0
Level 2 | Estimated Fair Value
Assets:
Mortgage and other loans receivable		339	242
Other investments		578	645
Short-term investments		4,673	3,502
Cash		0	0
Other assets		0	0
Liabilities:
Fortitude Re funds withheld payable		0	0
Level 2 | Estimated Fair Value | Consolidated Entities, Excluding Consolidated Investments
Liabilities:
Long-term debt		7,981	9,623
Level 2 | Estimated Fair Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary
Liabilities:
Long-term debt		0	0
Level 3 | Estimated Fair Value
Assets:
Mortgage and other loans receivable		3,413	4,113
Other investments		5	6
Short-term investments		0	0
Cash		0	0
Other assets		0	0
Liabilities:
Fortitude Re funds withheld payable		3,335	3,675
Level 3 | Estimated Fair Value | Consolidated Entities, Excluding Consolidated Investments
Liabilities:
Long-term debt		240	267
Level 3 | Estimated Fair Value | Consolidated Investments, Including Variable Interest Entities, Primarily Beneficiary
Liabilities:
Long-term debt		$ 158	$ 231

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