Principles of Consolidation - Narrative (Details) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2026 USD ($) securitization	Mar. 31, 2026 USD ($) securitization_entity	Dec. 31, 2025 securitization
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Securitization entity	4
Variable Interest Entity [Line Items]
Securitization entity	4
Sequoia Re-securitization Trust
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Securitization entity	3	3	3
Variable Interest Entity [Line Items]
Securitization entity	3	3	3
Sequoia Re-securitization Trust | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Transfers of financial assets accounted for as sales principal balance | $	$ 391	$ 391