Derivatives and Hedging Activities (Details) (USD $) In Millions, unless otherwise specified																										3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Mar. 31, 2014	Jun. 30, 2013	Mar. 31, 2014 Fixed rate notes	Jun. 30, 2013 Fixed rate notes	Mar. 31, 2013 Fixed rate notes	Mar. 31, 2014 Foreign Currency Contracts	Jun. 30, 2013 Foreign Currency Contracts	Mar. 31, 2014 Commodity Contracts	Jun. 30, 2013 Commodity Contracts	Mar. 31, 2014 Other current assets	Jun. 30, 2013 Other current assets	Mar. 31, 2014 Other current assets Foreign Currency Contracts	Jun. 30, 2013 Other current assets Foreign Currency Contracts	Mar. 31, 2014 Other current assets Commodity Contracts	Mar. 31, 2014 Accrued liabilities	Jun. 30, 2013 Accrued liabilities	Mar. 31, 2014 Accrued liabilities Foreign Currency Contracts	Jun. 30, 2013 Accrued liabilities Foreign Currency Contracts	Mar. 31, 2014 Accrued liabilities Commodity Contracts	Jun. 30, 2013 Accrued liabilities Commodity Contracts	Mar. 31, 2014 Other liabilities	Jun. 30, 2013 Other liabilities	Mar. 31, 2014 Other liabilities Foreign Currency Contracts	Mar. 31, 2014 Other liabilities Commodity Contracts	Jun. 30, 2013 Other liabilities Commodity Contracts	Mar. 31, 2014 Fair Value Hedging Interest Rate Swaps	Mar. 31, 2013 Fair Value Hedging Interest Rate Swaps	Mar. 31, 2014 Fair Value Hedging Interest Rate Swaps	Mar. 31, 2013 Fair Value Hedging Interest Rate Swaps	Mar. 31, 2014 Cash flow hedges	Mar. 31, 2013 Cash flow hedges	Mar. 31, 2014 Cash flow hedges	Mar. 31, 2013 Cash flow hedges	Mar. 31, 2013 Cash flow hedges Interest Rate Swaps	Mar. 31, 2014 Cash flow hedges Interest Rate Swaps	Mar. 31, 2013 Cash flow hedges Interest Rate Swaps	Mar. 31, 2014 Cash flow hedges Foreign Currency Contracts	Mar. 31, 2013 Cash flow hedges Foreign Currency Contracts	Mar. 31, 2014 Cash flow hedges Foreign Currency Contracts	Mar. 31, 2013 Cash flow hedges Foreign Currency Contracts	Mar. 31, 2014 Cash flow hedges Commodity Contracts lb	Mar. 31, 2013 Cash flow hedges Commodity Contracts	Mar. 31, 2014 Cash flow hedges Commodity Contracts lb	Mar. 31, 2013 Cash flow hedges Commodity Contracts
Fair value of derivatives
Amounts of raw materials to be purchased from forward contracts																																									32,900,000		32,900,000
Issuance of fixed rate notes			$ 300.0	$ 300.0	$ 300.0
Term of notes																																			10 years
Outstanding derivative contracts																										0		0
Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)																														27.2	0.2	22.0	(6.7)	3.6		2.7	(0.3)	0.6	(1.0)	1.2	27.5	(4.0)	23.0	(10.6)
Net gains recorded as a reduction to interest expense																										0	0.4	0	1.2
Derivatives designated as hedging instruments, Asset	4.1	0.9				0.2	0.9	3.9		4.1	0.9	0.2	0.9	3.9
Derivatives designated as hedging instruments, Liability	$ 34.4	$ 73.1				$ 0.7	$ 0.4	$ 33.7	$ 72.7						$ 15.4	$ 29.1	$ 0.6	$ 0.4	$ 14.8	$ 28.7	$ 19.0	$ 44.0	$ 0.1	$ 18.9	$ 44.0