Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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-Topic 326
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Finance Receivables and Loans, Net - Schedule of Financing Receivables, Nonaccrual Status (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, recorded investment, nonaccrual status	$ 1,306		$ 1,366	$ 1,486
Financing receivable, nonaccrual, with no allowance	457		485
Financing receivable, nonaccrual, interest income	13	$ 4
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, recorded investment, nonaccrual status	1,190		1,217	1,375
Financing receivable, nonaccrual, with no allowance	450		460
Consumer \| Consumer automotive
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, recorded investment, nonaccrual status	1,128		1,155	1,231
Financing receivable, nonaccrual, with no allowance	410		416
Consumer \| Consumer mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, recorded investment, nonaccrual status	62		62	54
Financing receivable, nonaccrual, with no allowance	40		44
Consumer \| Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, recorded investment, nonaccrual status			0	90
Financing receivable, nonaccrual, with no allowance			0
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, recorded investment, nonaccrual status	116		149	111
Financing receivable, nonaccrual, with no allowance	7		25
Commercial \| Consumer automotive
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, recorded investment, nonaccrual status	3		15	15
Financing receivable, nonaccrual, with no allowance	3		15
Commercial \| Consumer mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, recorded investment, nonaccrual status	1		10	2
Financing receivable, nonaccrual, with no allowance	1		10
Commercial \| Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, recorded investment, nonaccrual status	112		124	$ 94
Financing receivable, nonaccrual, with no allowance	$ 3		$ 0