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Business Acquisitions, Investments and Restructuring Charges (Investments) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]      
Loss from unconsolidated equity method investment $ 188.5 $ 118.2 $ 112.2
Purchase of equity interest in a previously held non-controlling interest 32.0    
Investment Tax Credit Carryforward      
Schedule of Equity Method Investments [Line Items]      
Increase (Decrease) in Income Taxes 126.0 100.0 $ 84.0
Certain Limited Liability Companies      
Schedule of Equity Method Investments [Line Items]      
Loss from unconsolidated equity method investment 178.0 118.2  
Other Noncurrent Assets      
Schedule of Equity Method Investments [Line Items]      
Payments to acquire non-controlling interest in solar energy facility $ 175.0 $ 143.0