Consolidated Statements of Changes in Shareholder's Equity - USD ($) $ in Millions	Total	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Noncontrolling interests
Balance at Dec. 31, 2021	$ 2,981	$ 745	$ 2	$ 2,849	$ (774)	$ 159
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit of consolidated companies	423			417		6
Dividend paid to Caterpillar	0
Foreign currency translation, net of tax	(543)				(528)	(15)
Derivative financial instruments, net of tax	18				18
Balance at Sep. 30, 2022	2,879	745	2	3,266	(1,284)	150
Balance at Jun. 30, 2022	3,047	745	2	3,135	(991)	156
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit of consolidated companies	133			131		2
Foreign currency translation, net of tax	(296)				(288)	(8)
Derivative financial instruments, net of tax	(5)				(5)
Balance at Sep. 30, 2022	2,879	745	2	3,266	(1,284)	150
Balance at Dec. 31, 2022	2,963	745	2	3,109	(1,047)	154
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit of consolidated companies	402			397		5
Dividend paid to Caterpillar	(155)			(75)		80
Foreign currency translation, net of tax	(99)				(93)	(6)
Derivative financial instruments, net of tax	(4)				(4)
Balance at Sep. 30, 2023	3,107	745	2	3,431	(1,144)	73
Balance at Jun. 30, 2023	3,195	745	2	3,333	(1,038)	153
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit of consolidated companies	98			98
Dividend paid to Caterpillar	(80)					80
Foreign currency translation, net of tax	(102)				(102)
Derivative financial instruments, net of tax	(4)				(4)
Balance at Sep. 30, 2023	$ 3,107	$ 745	$ 2	$ 3,431	$ (1,144)	$ 73