Fair Value of Financial Instruments - Narrative (Details) - USD ($)	Jun. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	$ 276,139,000,000	$ 263,539,000,000
Liabilities	21,550,000,000	16,827,000,000
Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	0
Liabilities	0	0
Commercial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans with fair value option in non-accrual	0	0
Loans with fair value option, 90 days past due and still accruing	$ 0	$ 0