Accrued Liabilities, Other Liabilities and Deferred Income Taxes Accrued Liabilities and Other Liabilities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accrued Liabilities, Current [Abstract]
Dealer and customer allowances, claims and discounts	$ 7,919	$ 7,722
Deposits primarily from rental car companies	4,713	4,250
Deferred revenue	1,276	1,326
Policy, product warranty and recall campaigns	2,559	2,919
Payrolls and employee benefits excluding postemployment benefits	2,285	2,144
Other	5,881	4,947
Total accrued liabilities	24,633	23,308
Other Liabilities, Noncurrent [Abstract]
Deferred revenue	1,249	1,169
Policy, product warranty and recall campaigns	4,655	4,285
Employee benefits excluding postemployment benefits	1,192	1,359
Postemployment benefits including facility idling reserves	1,216	1,518
Other	5,041	4,838
Total other liabilities and deferred income taxes	$ 13,353	$ 13,169