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Equity (Share-based Payments to Employees, Non-marketable Options, Movement) (Details) - Share
Share in Millions
12 Months Ended
Mar. 06, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Granted during the year 4.3    
Non Marketable Options [Member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Balance as at start of year   14.0 15.0
Granted during the year   12.0  
Exercised during the year   (3.0) (1.0)
Balance as at end of year   23.0 14.0