Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Profit of consolidated companies	$ 461	$ 544	$ 527
Other comprehensive income (loss), net of tax:
Foreign currency translation, net of tax (expense)/benefit	(545)	(481)	(59)
Derivative financial instruments:
Gains (losses) deferred, net of tax (expense)/benefit	2	(4)	(1)
(Gains) losses reclassified to earnings, net of tax expense/(benefit)	3	4	4
Total Other comprehensive income (loss), net of tax	(540)	(481)	(56)
Comprehensive income (loss)	(79)	63	471
Less: Comprehensive income (loss) attributable to the noncontrolling interests	(6)	9	17
Comprehensive income (loss) attributable to Caterpillar Financial Services Corporation	$ (73)	$ 54	$ 454