Goodwill (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended							12 Months Ended
	Dec. 31, 2013		Dec. 31, 2011	Dec. 31, 2011 North America Segment [Member]		Dec. 31, 2013 North America Segment [Member]	Dec. 31, 2012 North America Segment [Member]	Dec. 31, 2013 International Segment [Member]
Goodwill [Roll Forward]
Goodwill	$ 1,108			$ 1,095		$ 1,108	$ 1,108
Goodwill, Acquired During Period	132	[1]		14	[1]			132	[1]
Goodwill, Translation Adjustments			(1)
Goodwill	$ 1,240			$ 1,108		$ 1,108	$ 1,108	$ 132

[1] See Note 2 - "Acquisition of Ally Financial International Operations" for further discussion.