Debt And Commitments - Debt Outstanding (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Debt Outstanding [Abstract]
Total Debt	$ 117,004	$ 114,688
Automotive [Member]
Debt Outstanding [Abstract]
Short-term Debt	2,086	1,257
Debt payable after one year	13,623	14,426
Total Debt	15,709	15,683
Fair value of debt	17,672	17,301
Debt Instruments [Abstract]
Short-term debt carried at cost which approximates fair value	504	377
Automotive [Member] | Other debt [Member]
Debt Outstanding [Abstract]
Debt payable within one year	261	104
Unamortized (discount)/premium	(1)	3
Debt payable after one year	1,327	1,255
Automotive [Member] | Public Unsecured Debt Securities [Member]
Debt Outstanding [Abstract]
Debt, principal amount	6,634	6,799
Unamortized (discount)/premium	(147)	(148)
Automotive [Member] | Convertible Notes [Member]
Debt Outstanding [Abstract]
Debt, principal amount	883	908
Unamortized (discount)/premium	(98)	(110)
Automotive [Member] | Non-Affiliates [Member]
Debt Outstanding [Abstract]
Short-term Debt	677	562
Financial Services [Member]
Debt Outstanding [Abstract]
Short-term Debt	13,802	14,994
Unamortized (discount)/premium	(81)	(91)
Fair value adjustments	190	103
Long Term Debt And Capital Lease Obligations Current And Non Current	87,493	84,011
Total Debt	101,295	99,005
Fair value of debt	104,501	102,399
Debt Instruments [Abstract]
Short-term debt carried at cost which approximates fair value	10,500	9,700
Financial Services [Member] | Other debt [Member]
Debt Outstanding [Abstract]
Short-term Debt	2,522	2,345
Financial Services [Member] | Asset backed commercial paper [Member]
Debt Outstanding [Abstract]
Short-term Debt	1,331	3,364
Financial Services [Member] | Other asset backed short term debt [Member]
Debt Outstanding [Abstract]
Short-term Debt	1,972	1,963
Financial Services [Member] | Floating rate demand notes [Member]
Debt Outstanding [Abstract]
Short-term Debt	5,513	5,319
Financial Services [Member] | Commercial Paper [Member]
Debt Outstanding [Abstract]
Short-term Debt	2,464	2,003
Financial Services [Member] | Unsecured Debt [Member]
Debt Outstanding [Abstract]
Debt payable within one year	5,575	4,475
Debt payable after one year	39,906	38,914
Financial Services [Member] | Asset backed-debt [Member]
Debt Outstanding [Abstract]
Debt payable within one year	17,425	17,337
Debt payable after one year	24,478	23,273
DOE ATVM Incentive Program | Automotive [Member]
Debt Outstanding [Abstract]
Debt payable within one year	591	591
Debt payable after one year	4,276	4,424
EIB Credit Facilities [Member] | Automotive [Member]
Debt Outstanding [Abstract]
Debt payable within one year	552	0
Unamortized (discount)/premium	5	0
Debt payable after one year	$ 749	$ 1,295