Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Profit of consolidated companies	$ 98	$ 109	$ 303	$ 348
Other comprehensive income (loss), net of tax:
Foreign currency translation, net of tax (expense)/benefit	(5)	(206)	100	(472)
Derivative financial instruments:
Gains (losses) deferred, net of tax (expense)/benefit	(10)	(1)	(15)	0
(Gains) losses reclassified to earnings, net of tax expense/(benefit)	7	1	13	3
Available-for-sale securities:
Gains (losses) deferred, net of tax (expense)/benefit	1	0	(1)	0
(Gains) losses reclassified to earnings, net of tax expense/(benefit)	0	0	0	0
Total Other comprehensive income (loss), net of tax	(7)	(206)	97	(469)
Comprehensive income (loss)	91	(97)	400	(121)
Less: Comprehensive income (loss) attributable to the noncontrolling interests	1	(6)	2	(3)
Comprehensive income (loss) attributable to Caterpillar Financial Services Corporation	$ 90	$ (91)	$ 398	$ (118)