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, 2017	Jun. 30, 2016
Asset Derivatives:
Derivatives designated as hedging instruments, asset	$ 14.5	$ 11.8
Liability Derivatives:
Derivatives designated as hedging instruments, liability	19.1	43.9
Forward interest rate swaps
Asset Derivatives:
Derivatives designated as hedging instruments, asset	2.2	10.9
Liability Derivatives:
Derivatives designated as hedging instruments, liability	0.0	0.0
Foreign exchange contracts
Asset Derivatives:
Derivatives designated as hedging instruments, asset	0.2	0.3
Liability Derivatives:
Derivatives designated as hedging instruments, liability	1.0	0.3
Commodity contracts
Asset Derivatives:
Derivatives designated as hedging instruments, asset	12.1	0.6
Liability Derivatives:
Derivatives designated as hedging instruments, liability	18.1	43.6
Other current assets
Asset Derivatives:
Derivatives designated as hedging instruments, asset	7.2	2.1
Other current assets | Forward interest rate swaps
Asset Derivatives:
Derivatives designated as hedging instruments, asset	0.6	1.2
Other current assets | Foreign exchange contracts
Asset Derivatives:
Derivatives designated as hedging instruments, asset	0.2	0.3
Other current assets | Commodity contracts
Asset Derivatives:
Derivatives designated as hedging instruments, asset	6.4	0.6
Other assets
Asset Derivatives:
Derivatives designated as hedging instruments, asset	7.3	9.7
Other assets | Forward interest rate swaps
Asset Derivatives:
Derivatives designated as hedging instruments, asset	1.6	9.7
Other assets | Foreign exchange contracts
Asset Derivatives:
Derivatives designated as hedging instruments, asset	0.0	0.0
Other assets | Commodity contracts
Asset Derivatives:
Derivatives designated as hedging instruments, asset	5.7	0.0
Accrued liabilities
Liability Derivatives:
Derivatives designated as hedging instruments, liability	13.1	31.6
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	1.0	0.3
Accrued liabilities | Commodity contracts
Liability Derivatives:
Derivatives designated as hedging instruments, liability	12.1	31.3
Other liabilities
Liability Derivatives:
Derivatives designated as hedging instruments, liability	6.0	12.3
Other liabilities | Forward interest rate swaps
Liability Derivatives:
Derivatives designated as hedging instruments, liability	0.0	0.0
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	$ 6.0	$ 12.3