Income Taxes (Details 4) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deferred tax assets:
Allowance for credit losses	$ 144	$ 159	$ 116
Tax credit carryforwards	0	0	13
Net operating loss carryforwards	56	59	69
Deferred tax assets, gross	200	218	198
Deferred tax liabilities
Deferred income tax liabilities (primarily lease basis differences)	(455)	(467)	(495)
Valuation allowance for deferred income tax assets	(9)	(9)	(9)
Deferred income tax on translation adjustment	(133)	(173)	(193)
Deferred income taxes, net	$ (397)	$ (431)	$ (499)