Derivatives and Hedging Activities (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
(Losses) gains related to cash flow hedges
Net derivative gains included in AOCI expected to be reclassified into earnings	$ 6.0
Changes in AOCI associated with derivative hedging activities
Balance, beginning	(41.5)
Balance, ending	7.6		(32.8)
Cash collateral held by counterparties	0
Cash flow hedges
(Losses) gains related to cash flow hedges
Amount of (Loss) Gain Reclassified from AOCI into Income (Effective Portion)	(20.9)	(24.6)	(22.2)
Amount of Loss Reclassified from AOCI into Income (Ineffective Portion)	(0.3)
Changes in AOCI associated with derivative hedging activities
Balance, beginning	(41.5)	(32.8)	2.6
Current period changes in fair value, net of tax	36.0	(24.2)	(49.1)
Reclassification to earnings, net of tax	13.1	15.5	13.7
Balance, ending	7.6	(41.5)	(32.8)
Cash flow hedges | Commodity contracts | Cost of Sales
(Losses) gains related to cash flow hedges
Amount of (Loss) Gain Reclassified from AOCI into Income (Effective Portion)	(20.5)	(24.9)	(23.4)
Amount of Loss Reclassified from AOCI into Income (Ineffective Portion)	(0.3)
Cash flow hedges | Foreign exchange contracts | Net Sales
(Losses) gains related to cash flow hedges
Amount of (Loss) Gain Reclassified from AOCI into Income (Effective Portion)	(0.8)	0.1	1.2
Cash flow hedges | Forward interest rate swaps | Interest expense
(Losses) gains related to cash flow hedges
Amount of (Loss) Gain Reclassified from AOCI into Income (Effective Portion)	$ 0.4	$ 0.2