Leased Vehicles Summary of Changes in Leased Vehicles (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Property Subject to or Available for Operating Lease, Net [Abstract]
Leased Vehicles Accounted For Operating Leases Net Of Manufacturing Incentives	$ 4,025	$ 1,976
Leases Acquired - Acquisition		9
Leased Vehicles Purchased	4,077	2,180
Leased Vehicles Returned (End of Term)	(662)	(192)
Leased Vehicles Returned (Default)	(39)	(16)
Manufacturing Incentives	(524)	(288)
Foreign Currency Translation On Leases	(76)	(22)
Leased Vehicles Accounted For Operating Leases Net Of Manufacturing Incentives	$ 6,801	$ 3,647