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Consolidated statement of changes in equity (Parenthetical) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Feb. 28, 2022
Statutory reserves unavailable for distribution $ 562 $ 491 $ 472  
Share capital, increase       $ 300
Number of shares authorised, increase (in shares)       200,000,000
Par value per share (usd per share) $ 1.50 $ 1.50   $ 1.50
Purchase of treasury shares (in shares) (2,983,320)      
Share repurchase program $ 99 $ 5 $ 0  
Number of shares withheld (in shares) 467,247 320,985 93,413  
Dividends paid, ordinary shares   $ 0 $ 0  
Ordinary shares        
Share repurchase program $ 63