Derivatives and Hedging Activities - Schedule of Fair Value and Location of Outstanding Derivative Contracts Recorded in Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Jun. 30, 2016	Jun. 30, 2015
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	$ 11.8	$ 4.4
Derivatives designated as hedging instruments, Liability	43.9	53.5
Forward interest rate swaps
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	10.9	4.2
Derivatives designated as hedging instruments, Liability	0.0	0.0
Foreign exchange contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	0.3	0.2
Derivatives designated as hedging instruments, Liability	0.3	0.0
Commodity contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	0.6	0.0
Derivatives designated as hedging instruments, Liability	43.6	53.5
Other current assets
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	2.1	1.7
Other current assets | Forward interest rate swaps
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	1.2	1.5
Other current assets | Foreign exchange contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	0.3	0.2
Other current assets | Commodity contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	0.6	0.0
Other assets
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	9.7	2.7
Other assets | Forward interest rate swaps
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	9.7	2.7
Other assets | Foreign exchange contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	0.0	0.0
Other assets | Commodity contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	0.0	0.0
Accrued liabilities
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	31.6	32.7
Accrued liabilities | Forward interest rate swaps
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	0.0	0.0
Accrued liabilities | Foreign exchange contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	0.3	0.0
Accrued liabilities | Commodity contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	31.3	32.7
Other liabilities
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	12.3	20.8
Other liabilities | Forward interest rate swaps
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	0.0	0.0
Other liabilities | Foreign exchange contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	0.0	0.0
Other liabilities | Commodity contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	$ 12.3	$ 20.8