Fair Value Disclosures - Summary of Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Carrying Amount
Assets
Finance receivables, net (excluding finance leases)	$ 22,376	$ 22,026
Liabilities
Long-term debt	26,487	25,406
Fair Value | Fair Value, Level 3
Assets
Finance receivables, net (excluding finance leases)	21,984	21,593
Fair Value | Fair Value, Level 2
Liabilities
Long-term debt	26,448	25,304
Carrying amount of assets excluded from measurement at fair value
Liabilities
Finance leases and failed sale leasebacks, Carrying Value	$ 7,020	$ 6,940