Variable Interest Entities - Summary of Variable Interest Entities Information (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Total Assets	$ 190,051	$ 186,346
Total Liabilities	176,761	168,923
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Total Assets	2,002	2,827
Total Liabilities	1	1
Variable Interest Entity, Not Primary Beneficiary | LIHTC investments
Variable Interest Entity [Line Items]
Total Assets	7,344	7,839
Total Liabilities	2,469	3,252
Maximum Exposure to Loss	2,242	1,985
Variable Interest Entity, Not Primary Beneficiary | Principal Investments, Indirect
Variable Interest Entity [Line Items]
Total Assets	6,968	8,437
Total Liabilities	92	178
Maximum Exposure to Loss	$ 46	$ 57