Variable Interest Entities - Narrative (Details) - USD ($)	Sep. 30, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Assets	$ 284,415,000,000	$ 301,450,000,000
Total liabilities	260,794,000,000	276,259,000,000
Contingent Commitment For Tax Credit Investments
Variable Interest Entity [Line Items]
Other commitment	48,000,000
Low Income Housing Tax Credit
Variable Interest Entity [Line Items]
Investment owned	841,000,000
Production Tax Credit
Variable Interest Entity [Line Items]
Investment owned	301,000,000
VIE - primary beneficiary
Variable Interest Entity [Line Items]
Assets	0	0
Total liabilities	0	0
VIE - not primary beneficiary | Unconsolidated Funds
Variable Interest Entity [Line Items]
Potential maximum loss exposure of unconsolidated funds	16,000,000	15,000,000
VIE - not primary beneficiary | Low Income Housing, Production and Investment Tax Credit Entities
Variable Interest Entity [Line Items]
Potential maximum loss exposure of unconsolidated funds	1,300,000,000	$ 1,600,000,000
Deferred contribution payments included in accrued expenses and other liabilities	$ 198,000,000