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Variable Interest Entities (Schedule of VIE Assets and Liabilities) (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
VIE Assets and Liabilities [Abstract]      
Net Property, Plant and Equipment $ 25,453.9 $ 22,274.9  
Current assets [1] 2,080.2 4,499.4  
Total Assets 31,788.1 31,077.2 $ 26,736.6
Current liabilities 4,113.4 5,265.1  
Asset retirement obligations 698.6 480.5  
Finance Lease, Liability, Payment, Due 429.4    
Variable Interest Entity, Primary Beneficiary      
VIE Assets and Liabilities [Abstract]      
Net Property, Plant and Equipment 1,323.8 1,369.8  
Current assets 65.0 63.6  
Total Assets 1,388.8 1,433.4  
Current liabilities 53.7 68.3  
Asset retirement obligations 58.3 55.7  
Finance Lease, Liability, Payment, Due 40.4 0.0  
Total liabilities(1)(2) $ 152.4 $ 124.0  
[1]
(1)Includes $1,323.8 million and $1,369.8 million in 2024 and 2023, respectively, of net property, plant and equipment assets, $65.0 million and $63.6 million in 2024 and 2023, respectively, of current assets of consolidated VIEs that may be used only to settle obligations of the consolidated VIEs. Refer to Note 4, "Noncontrolling Interests," for additional information.