Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Profit of consolidated companies	$ 568	$ 542	$ 517
Other comprehensive income (loss), net of tax (Note 9):
Foreign currency translation	67	(318)	(209)
Derivative financial instruments	(3)	33	32
Total Other comprehensive income (loss), net of tax	64	(285)	(177)
Comprehensive income (loss)	632	257	340
Less: Comprehensive income (loss) attributable to noncontrolling interests	0	(5)	14
Comprehensive income (loss) attributable to Caterpillar Financial Services Corporation	$ 632	$ 262	$ 326