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Income Taxes Deferred Tax (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Deferred Tax Liabilities, Gross [Abstract]        
Depreciation and amortization $ 490.2 $ 430.5    
Depletion 623.6 613.5    
Partnership tax basis differences 69.7 59.3    
Undistributed earnings of non-U.S. subsidiaries 29.3 0.0    
Other liabilities 97.0 37.6    
Total deferred tax liabilities 1,309.8 1,140.9    
Deferred Tax Assets, Gross [Abstract]        
Capital loss carryforwards 14.9 3.6    
Foreign tax credit carryforwards 1,266.2 736.7    
Net operating loss carryforwards 514.4 255.8    
Pension plans and other benefits 17.8 14.3    
Asset retirement obligations 452.1 369.4    
Disallowed interest expense under 163(j) 11.5 0.0    
Other assets 468.6 413.2    
Subtotal 2,745.5 1,793.0    
Net of valuation allowance        
Valuation allowance 1,421.9 909.9 $ 774.7 $ 683.0
Deferred Tax Assets, Net of Valuation Allowance 1,323.6 883.1    
Deferred Tax Liabilities, Net, Total   (257.8)    
Deferred Tax Liabilities and Assets [Line Items]        
Deferred Tax Liabilities, Net   257.8    
Deferred Tax Assets, Net 13.8      
Anticipatory Foreign Tax Credit Carryforward        
Net of valuation allowance        
Valuation allowance 220.5 202.2    
Deferred Tax Liabilities and Assets [Line Items]        
Deferred Tax Assets Foreign Tax Credits Netted Against Related Deferred Tax Liabilities $ 220.5 $ 202.2