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Contractual Commitments Contingencies and Off-Balance Sheet Arrangements (Narrative) (Details)
$ in Millions
1 Months Ended 12 Months Ended
Jun. 30, 2021
USD ($)
May 31, 2020
claim
Jun. 30, 2020
USD ($)
Commitments and Contingencies Disclosure [Abstract]      
Purchase commitments $ 658.6    
Purchase commitments relating to June 30, 2022 448.5    
Purchase commitments relating to June 30, 2023 184.8    
Litigation settlement, amount awarded to other party     $ 25.0
Insurance recoveries $ 15.0    
New claims filed, number | claim   2