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Financial Instruments and Risk Management (Credit Risk - Maximum Exposure to Credit Risk) (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Maximum Exposure to credit risk Financial assets [Line Items]    
Carrying amount $ 1,774 $ 2,138
Ifrs Cash And Cash Equivalents Member    
Maximum Exposure to credit risk Financial assets [Line Items]    
Carrying amount 327 420
Short term investments and deposits [Member]    
Maximum Exposure to credit risk Financial assets [Line Items]    
Carrying amount 115 172
Trade receivables [Member]    
Maximum Exposure to credit risk Financial assets [Line Items]    
Carrying amount 1,260 1,376
Other receivables [Member]    
Maximum Exposure to credit risk Financial assets [Line Items]    
Carrying amount 33 94
Derivatives [Member]    
Maximum Exposure to credit risk Financial assets [Line Items]    
Carrying amount 19 54
Other non-current assets [Member]    
Maximum Exposure to credit risk Financial assets [Line Items]    
Carrying amount $ 20 $ 22