Fair Value Measurements (Details 3) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Fair Value, Level 2
Financial Instruments, Financial Liabilities, Balance Sheet Groupings
Long-term debt	$ 23,126	$ 23,299
Fair Value, Level 3
Financial Instruments, Financial Assets, Balance Sheet Groupings
Finance receivables, net (excluding finance leases)	20,950	20,330
Carrying Amount
Financial Instruments, Financial Assets, Balance Sheet Groupings
Finance receivables, net (excluding finance leases)	21,483	20,746
Financial Instruments, Financial Liabilities, Balance Sheet Groupings
Long-term debt	23,431	23,612
Carrying amount of assets excluded from measurement at fair value
Financial Instruments, Financial Liabilities, Balance Sheet Groupings
Finance leases and failed sale leasebacks, Carrying Value	$ 6,790	$ 7,000