Consolidated Statements of Changes in Stockholder's Equity - USD ($) $ in Millions	Total	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income/(loss)	Noncontrolling interests
Balance at Dec. 31, 2014	$ 3,654	$ 745	$ 2	$ 3,139	$ (364)	$ 132
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Profit of consolidated companies	348			346		2
Dividend paid to Caterpillar	(250)			(250)
Foreign currency translation, net of tax	(472)				(467)	(5)
Derivative financial instruments, net of tax	3				3
Balance at Sep. 30, 2015	3,283	745	2	3,235	(828)	129
Balance at Dec. 31, 2015	2,975	745	2	2,999	(897)	126
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Profit of consolidated companies	303			299		4
Dividend paid to Caterpillar	0			0
Foreign currency translation, net of tax	100				102	(2)
Derivative financial instruments, net of tax	(2)				(2)
Available-for-sale securities, net of tax	(1)				(1)
Balance at Sep. 30, 2016	$ 3,375	$ 745	$ 2	$ 3,298	$ (798)	$ 128