Variable Interest Entities - Real Estate and Investments Entities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Jan. 01, 2021
VARIABLE INTEREST ENTITY
Total assets	$ 539,306	$ 522,228	$ 598,841
Unconsolidated VIE
VARIABLE INTEREST ENTITY
Unfunded commitments	435
Total assets	9,183	9,392
Exposure to loss	13,651	$ 14,077
Unconsolidated VIE | RMBS, CMBS, Oher ABS, And CLOs
VARIABLE INTEREST ENTITY
Total assets	3,000
Exposure to loss	$ 2,400