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Long-Term Debt (Components Of Long-Term Debt) (Details) - USD ($)
$ in Millions
Mar. 31, 2022
Feb. 28, 2022
Dec. 31, 2021
Debt Instrument [Line Items]      
Less: deferred financing costs, net $ 30.1   $ 29.9
Total debt 2,810.1   2,052.3
Less: current portion 0.2   0.2
Total long-term debt, less current portion 2,809.9   2,052.1
April 2029 Senior Notes      
Debt Instrument [Line Items]      
Debt Instrument, Fair Value Adjustment 30.0   0.0
Senior Notes | 2025 Senior Notes      
Debt Instrument [Line Items]      
Senior notes 500.0   500.0
Senior Notes | 2027 Senior Notes      
Debt Instrument [Line Items]      
Senior notes 600.0   600.0
Senior Notes | February 2029 Senior Notes      
Debt Instrument [Line Items]      
Senior notes 700.0   700.0
Senior Notes | April 2029 Senior Notes      
Debt Instrument [Line Items]      
Senior notes 450.0 $ 450.0 0.0
Other(1)      
Debt Instrument [Line Items]      
Other(1) 0.2   0.2
Revolving Credit Facility | Crestwood Midstream Revolver      
Debt Instrument [Line Items]      
Credit Facility $ 560.0   $ 282.0