Other Liabilities and Deferred Revenue (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Other Liabilities [Abstract]
Dealer and dealers’ customer allowances and claims	$ 9,542	$ 8,122
Deferred revenue	3,866	4,675
Employee benefit plans	1,469	1,562
Accrued interest	974	840
OPEB	349	354
Pension	247	249
Other	2,869	3,287
Total current other liabilities and deferred revenue	19,316	19,089
Pension	10,150	9,543
OPEB	5,516	5,347
Dealer and dealers’ customer allowances and claims	2,564	2,731
Deferred revenue	3,687	3,285
Employee benefit plans	1,063	1,041
Other	1,415	1,510
Total non-current other liabilities and deferred revenue	$ 24,395	$ 23,457