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, 2022	$ 2,963	$ 745	$ 2	$ 3,109	$ (1,047)	$ 154
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit (loss) of consolidated companies	304			299		5
Dividend paid to Caterpillar	(75)			(75)
Foreign currency translation, net of tax	3				9	(6)
Derivative financial instruments, net of tax	0
Balance at Jun. 30, 2023	3,195	745	2	3,333	(1,038)	153
Balance at Mar. 31, 2023	3,084	745	2	3,183	(1,004)	158
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit (loss) of consolidated companies	153			150		3
Foreign currency translation, net of tax	(41)				(33)	(8)
Derivative financial instruments, net of tax	(1)				(1)
Balance at Jun. 30, 2023	3,195	745	2	3,333	(1,038)	153
Balance at Dec. 31, 2023	3,170	745	2	3,327	(978)	74
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit (loss) of consolidated companies	105			104		1
Dividend paid to Caterpillar	0
Foreign currency translation, net of tax	(100)				(100)
Derivative financial instruments, net of tax	(4)				(4)
Balance at Jun. 30, 2024	3,171	745	2	3,431	(1,082)	75
Balance at Mar. 31, 2024	3,217	745	2	3,496	(1,101)	75
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit (loss) of consolidated companies	(65)			(65)
Foreign currency translation, net of tax	21				21
Derivative financial instruments, net of tax	(2)				(2)
Balance at Jun. 30, 2024	$ 3,171	$ 745	$ 2	$ 3,431	$ (1,082)	$ 75