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, 2023	$ 3,170	$ 745	$ 2	$ 3,327	$ (978)	$ 74
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit of consolidated companies	170			169		1
Foreign currency translation, net of tax	(121)				(121)
Derivative financial instruments, net of tax	(2)				(2)
Balance at Mar. 31, 2024	3,217	745	2	3,496	(1,101)	75
Balance at Dec. 31, 2024	2,890	745	2	3,300	(1,232)	75
Increase (Decrease) in Shareholder's Equity [Roll Forward]
Profit of consolidated companies	130			130
Foreign currency translation, net of tax	88				88
Derivative financial instruments, net of tax	(12)				(12)
Balance at Mar. 31, 2025	$ 3,096	$ 745	$ 2	$ 3,430	$ (1,156)	$ 75