Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Profit of consolidated companies	$ 94	$ 104
Other comprehensive income (loss), net of tax:
Foreign currency translation, net of tax (expense)/benefit	(307)	15
Derivative financial instruments:
Gains (losses) deferred, net of tax (expense)/benefit	67	(3)
(Gains) losses reclassified to earnings, net of tax expense/(benefit)	(61)	(11)
Total Other comprehensive income (loss), net of tax	(301)	1
Comprehensive income (loss)	(207)	105
Less: Comprehensive income (loss) attributable to the noncontrolling interests	3	8
Comprehensive income (loss) attributable to Caterpillar Financial Services Corporation	$ (210)	$ 97