Other Liabilities and Deferred Revenue (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Other Liabilities, Current [Abstract]
Dealer and dealers’ customer allowances and claims	$ 12,910	$ 9,219
Deferred revenue	2,515	2,404
Employee benefit plans	2,282	2,020
Accrued interest	1,224	935
OPEB	331	329
Pension	205	196
Operating lease liabilities	481	404
Other (a)	5,922	5,590
Total current other liabilities and deferred revenue	25,870	21,097
Other Liabilities, Noncurrent [Abstract]
Pension	6,383	5,673
OPEB	4,365	4,130
Deferred revenue	5,051	4,883
Dealer and dealers’ customer allowances and claims	7,506	6,095
Operating lease liabilities	1,395	1,101
Employee benefit plans	837	834
Other (a)	2,877	2,781
Total non-current other liabilities and deferred revenue	28,414	25,497
Derivative Liability, Current	1,000	1,300
Derivative Liability, Noncurrent	$ 1,300	$ 1,700
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration]	Total current other liabilities and deferred revenue	Total current other liabilities and deferred revenue
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Total non-current other liabilities and deferred revenue	Total non-current other liabilities and deferred revenue
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Total current other liabilities and deferred revenue	Total current other liabilities and deferred revenue
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Total non-current other liabilities and deferred revenue	Total non-current other liabilities and deferred revenue