Acquisitions and Divestitures Acquisitions (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition [Line Items]
Other comprehensive income/(loss), net of tax	$ (86)	$ 143	$ (221)
Assets and Liabilities Held for sale	0	0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(86)	143	(161)
Ford Motor Company [Member] | Retail and Dealer Financing [Member]
Business Acquisition [Line Items]
Acquisition Value Of Assets Acquired	713
Shareholder's Interest [Member]
Business Acquisition [Line Items]
Other comprehensive income/(loss), net of tax	(60)	0	0
Accumulated Translation Adjustment [Member]
Business Acquisition [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	$ 60