Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Profit of consolidated companies	$ 517	$ 308	$ 432
Other comprehensive income (loss), net of tax (Note 10):
Foreign currency translation	(209)	236	11
Derivative financial instruments	32	24	(31)
Total Other comprehensive income (loss), net of tax	(177)	260	(20)
Comprehensive income (loss)	340	568	412
Less: Comprehensive income (loss) attributable to the noncontrolling interests	14	25	19
Comprehensive income (loss) attributable to Caterpillar Financial Services Corporation	$ 326	$ 543	$ 393