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, 2020	$ 3,491	$ 745	$ 2	$ 3,142	$ (595)	$ 197
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit of consolidated companies	288			282		6
Dividend paid to Caterpillar	(350)			(350)
Foreign currency translation, net of tax	(48)				(50)	2
Derivative financial instruments, net of tax	12				12
Balance at Jun. 30, 2021	3,393	745	2	3,074	(633)	205
Balance at Mar. 31, 2021	3,524	745	2	3,282	(703)	198
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit of consolidated companies	145			142		3
Dividend paid to Caterpillar	(350)			(350)
Foreign currency translation, net of tax	73				69	4
Derivative financial instruments, net of tax	1				1
Balance at Jun. 30, 2021	3,393	745	2	3,074	(633)	205
Balance at Dec. 31, 2021	2,981	745	2	2,797	(774)	211
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit of consolidated companies	290			286		4
Dividend paid to Caterpillar	0
Foreign currency translation, net of tax	(247)				(240)	(7)
Derivative financial instruments, net of tax	23				23
Balance at Jun. 30, 2022	3,047	745	2	3,083	(991)	208
Balance at Mar. 31, 2022	3,151	745	2	2,940	(750)	214
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit of consolidated companies	146			143		3
Foreign currency translation, net of tax	(257)				(248)	(9)
Derivative financial instruments, net of tax	7				7
Balance at Jun. 30, 2022	$ 3,047	$ 745	$ 2	$ 3,083	$ (991)	$ 208