Leased Vehicles Leased Vehicles Summary (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013 Successor [Member]	Sep. 30, 2012 Successor [Member]	Dec. 31, 2012 Successor [Member]
Leased Vehicles Summary [Line Items]
Leased Vehicles Accounted For Operating Leases Net Of Manufacturing Incentives	$ 1,976		$ 887	$ 1,976
Leases Acquired - Acquisition	9
Leased Vehicles Purchased		2,180	1,077
Leased Vehicles Returned (End of Term)		(192)	(43)
Leased Vehicles Returned (Default)		(16)	(4)
Manufacturing Incentives		(288)	(149)
Foreign Currency Translation On Leases		(22)	18
Leased Vehicles Accounted For Operating Leases Net Of Manufacturing Incentives	$ 3,647	$ 3,647	$ 1,786	$ 1,976