Variable Interest Entities - Narrative (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Variable Interest Entity [Line Items]
Assets	$ 353,240,000,000	$ 297,258,000,000
Liabilities	327,914,000,000	273,459,000,000
Contingent Commitment for Tax Credit Investments
Variable Interest Entity [Line Items]
Other commitment	42,000,000
Low Income Housing Tax Credit
Variable Interest Entity [Line Items]
Investment owned, cost	705,000,000
Production Tax Credit
Variable Interest Entity [Line Items]
Investment owned, cost	291,000,000
VIE - primary beneficiary
Variable Interest Entity [Line Items]
Assets	0	0
Liabilities	0	0
VIE - not primary beneficiary
Variable Interest Entity [Line Items]
Potential maximum loss exposure of unconsolidated funds	19,000,000	18,000,000
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	1,100,000,000	$ 1,330,000,000
Deferred contribution payments	$ 110,000,000