Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Profit of consolidated companies	$ 104	$ 104	$ 205	$ 239
Other comprehensive income (loss), net of tax:
Foreign currency translation, net of tax (expense)/benefit	(68)	136	105	(266)
Derivative financial instruments:
Gains (losses) deferred, net of tax (expense)/benefit	(4)	0	(5)	1
(Gains) losses reclassified to earnings, net of tax expense/(benefit)	4	1	6	2
Available-for-sale securities:
Gains (losses) deferred, net of tax (expense)/benefit	(2)	0	(2)	0
(Gains) losses reclassified to earnings, net of tax expense/(benefit)	0	0	0	0
Total Other comprehensive income (loss), net of tax	(70)	137	104	(263)
Comprehensive income (loss)	34	241	309	(24)
Less: Comprehensive income (loss) attributable to the noncontrolling interests	(1)	2	1	3
Comprehensive income (loss) attributable to Caterpillar Financial Services Corporation	$ 35	$ 239	$ 308	$ (27)