Variable Interest Entities (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Variable Interest Entity [Line Items]
Maximum exposure to loss, On-Balance Sheet	$ 163,415	$ 161,322
Other investments	8,361	9,828
Unconsolidated VIE
Variable Interest Entity [Line Items]
Total VIE Assets	393,622	372,300
Maximum exposure to loss, On-Balance Sheet	3,533	2,978
Maximum exposure to loss, Off-Balance Sheet	1,966	1,593
Exposure to loss	5,499	4,571
Other investments	3,500	2,900
Unconsolidated VIE | Related Party | AIG Financial Products
Variable Interest Entity [Line Items]
Total VIE Assets	1,323	1,925
Maximum exposure to loss, Off-Balance Sheet	1,284	1,894
Unconsolidated VIE | Real Estate and Investment Entities
Variable Interest Entity [Line Items]
Total VIE Assets	388,959	367,661
Maximum exposure to loss, On-Balance Sheet	3,348	2,723
Maximum exposure to loss, Off-Balance Sheet	1,723	839
Exposure to loss	5,071	3,562
Unconsolidated VIE | Other Investment Companies
Variable Interest Entity [Line Items]
Total VIE Assets	4,663	4,639
Maximum exposure to loss, On-Balance Sheet	185	255
Maximum exposure to loss, Off-Balance Sheet	243	754
Exposure to loss	$ 428	$ 1,009