Consolidated Statements of Changes in Stockholder's Equity (USD $) In Millions, unless otherwise specified	Total	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income/(loss)	Noncontrolling interests
Balance at Dec. 31, 2012	$ 3,720	$ 745	$ 2	$ 2,691	$ 176	$ 106
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Profit of consolidated companies	364			355		9
Dividend paid to Caterpillar	(100)			(100)
Foreign currency translation, net of tax	(47)				(50)	3
Derivative financial instruments, net of tax	3				3
Balance at Sep. 30, 2013	3,940	745	2	2,946	129	118
Balance at Dec. 31, 2013	3,991	745	2	3,004	117	123
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Profit of consolidated companies	434			427		7
Dividend paid to Caterpillar	(200)			(200)
Foreign currency translation, net of tax	(280)				(279)	(1)
Derivative financial instruments, net of tax	(2)				(2)
Balance at Sep. 30, 2014	$ 3,943	$ 745	$ 2	$ 3,231	$ (164)	$ 129