Debt under Vehicle Programs and Borrowing Arrangements - Schedule Of Contractual Maturities (Detail) - Vehicle Programs $ in Millions	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
2024	$ 4,120
2025	6,717
2026	3,154
2027	2,520
2028	2,126
Thereafter	370
Total	19,007
Bank And Bank-Sponsored Facilities
Debt Instrument [Line Items]
2024	2,400
2025	4,500
2028	$ 100
Short-term debt, weighted average interest rate, at point in time	4.80%

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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