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Property, Plant and Equipment (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, at cost $ 23,852.3 $ 23,499.5  
Less: accumulated depreciation and depletion 10,499.7 9,914.1  
Property, plant and equipment, net 13,352.6 13,585.4  
Capitalized interest on major construction projects 42.3 35.2 $ 26.8
Depreciation 1,012.5 958.9 $ 932.1
Land      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, at cost 352.5 373.0  
Mining properties and rights      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, at cost 6,831.3 6,477.5  
Buildings and leasehold improvements      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, at cost 3,836.4 3,881.6  
Machinery and equipment      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, at cost 11,684.0 11,407.6  
Construction in-progress      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, at cost $ 1,148.1 $ 1,359.8