Derivatives and Hedging Activities - Schedule of Fair Value and Location of Outstanding Derivative Contracts Recorded in Consolidated Balance Sheets (Details) - Designated as Hedging Instrument - USD ($) $ in Millions	Jun. 30, 2019	Jun. 30, 2018
Asset Derivatives:
Derivatives designated as hedging instruments, asset	$ 12.5	$ 35.2
Liability Derivatives:
Derivatives designated as hedging instruments, liability	28.0	3.4
Forward interest rate swaps
Asset Derivatives:
Derivatives designated as hedging instruments, asset	1.9	0.1
Liability Derivatives:
Derivatives designated as hedging instruments, liability	0.0	2.9
Foreign exchange contracts
Asset Derivatives:
Derivatives designated as hedging instruments, asset	0.8	0.4
Liability Derivatives:
Derivatives designated as hedging instruments, liability	0.0	0.1
Commodity contracts
Asset Derivatives:
Derivatives designated as hedging instruments, asset	9.8	34.7
Liability Derivatives:
Derivatives designated as hedging instruments, liability	28.0	0.4
Other current assets
Asset Derivatives:
Derivatives designated as hedging instruments, asset	4.7	15.8
Other current assets | Forward interest rate swaps
Asset Derivatives:
Derivatives designated as hedging instruments, asset	0.3	0.1
Other current assets | Foreign exchange contracts
Asset Derivatives:
Derivatives designated as hedging instruments, asset	0.6	0.4
Other current assets | Commodity contracts
Asset Derivatives:
Derivatives designated as hedging instruments, asset	3.8	15.3
Other assets
Asset Derivatives:
Derivatives designated as hedging instruments, asset	7.8	19.4
Other assets | Forward interest rate swaps
Asset Derivatives:
Derivatives designated as hedging instruments, asset	1.6	0.0
Other assets | Foreign exchange contracts
Asset Derivatives:
Derivatives designated as hedging instruments, asset	0.2	0.0
Other assets | Commodity contracts
Asset Derivatives:
Derivatives designated as hedging instruments, asset	6.0	19.4
Accrued liabilities
Liability Derivatives:
Derivatives designated as hedging instruments, liability	16.7	0.1
Accrued liabilities | Forward interest rate swaps
Liability Derivatives:
Derivatives designated as hedging instruments, liability	0.0	0.0
Accrued liabilities | Foreign exchange contracts
Liability Derivatives:
Derivatives designated as hedging instruments, liability	0.0	0.1
Accrued liabilities | Commodity contracts
Liability Derivatives:
Derivatives designated as hedging instruments, liability	16.7	0.0
Other liabilities
Liability Derivatives:
Derivatives designated as hedging instruments, liability	11.3	3.3
Other liabilities | Forward interest rate swaps
Liability Derivatives:
Derivatives designated as hedging instruments, liability	0.0	2.9
Other liabilities | Foreign exchange contracts
Liability Derivatives:
Derivatives designated as hedging instruments, liability	0.0	0.0
Other liabilities | Commodity contracts
Liability Derivatives:
Derivatives designated as hedging instruments, liability	$ 11.3	$ 0.4