Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Profit of consolidated companies	$ 101	$ 135
Other comprehensive income (loss), net of tax:
Foreign currency translation, net of tax (expense)/benefit	173	(402)
Derivative financial instruments:
Gains (losses) deferred, net of tax (expense)/benefit	(1)	1
(Gains) losses reclassified to earnings, net of tax expense/(benefit)	2	1
Total Other comprehensive income (loss), net of tax	174	(400)
Comprehensive income (loss)	275	(265)
Less: Comprehensive income (loss) attributable to the noncontrolling interests	2	1
Comprehensive income (loss) attributable to Caterpillar Financial Services Corporation	$ 273	$ (266)