Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Profit of consolidated companies	$ 170	$ 151
Other comprehensive income (loss), net of tax (Note 5):
Foreign currency translation	(121)	44
Derivative financial instruments	(2)	1
Total Other comprehensive income (loss), net of tax	(123)	45
Comprehensive income (loss)	47	196
Less: Comprehensive income (loss) attributable to noncontrolling interests	1	4
Comprehensive income (loss) attributable to Caterpillar Financial Services Corporation	$ 46	$ 192