Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Profit of consolidated companies	$ 134	$ 143
Other comprehensive income (loss), net of tax:
Foreign currency translation, net of tax (expense)/benefit	4	(104)
Derivative financial instruments:
Gains (losses) deferred, net of tax (expense)/benefit	(2)	0
(Gains) losses reclassified to earnings, net of tax (expense)/benefit	1	1
Total Other comprehensive income (loss), net of tax	3	(103)
Comprehensive income (loss)	137	40
Less: Comprehensive income attributable to the noncontrolling interests	2	3
Comprehensive income (loss) attributable to Caterpillar Financial Services Corporation	$ 135	$ 37