Loans Receivable and Allowance for Credit Losses - Allowance for Credit Losses Narrative (Details) $ in Millions	Dec. 31, 2025 USD ($) quarter	Dec. 31, 2024 USD ($)
Financing Receivable, Allowance for Credit Losses
Life time loss rate, period span | quarter	8
Financing receivable and off balance sheet credit loss allowance	$ 858	$ 742
Commercial Lending
Financing Receivable, Allowance for Credit Losses
Collateral dependent loans	69	45
Consumer Lending
Financing Receivable, Allowance for Credit Losses
Collateral dependent loans	$ 10	$ 23