Derivatives and Hedging Activities - Summary of the (losses) gains related to cash flow hedges (Details) - USD ($) $ in Millions	3 Months Ended
Sep. 30, 2015	Sep. 30, 2014
Cash flow hedges
(Losses) gains related to cash flow hedges
Amount of (Loss) Gain Recognized in AOCI on Derivatives (Effective Portion)	$ (18.3)	$ (26.8)
Amount of (Loss) Gain Reclassified from AOCI into Income (Effective Portion)	(9.3)	2.4
Amount of (Loss) Gain Reclassified from AOCI into Income (Ineffective Portion)	0.0	0.4
Cash flow hedges \| Interest rate swaps \| Interest expenses
(Losses) gains related to cash flow hedges
Amount of (Loss) Gain Reclassified from AOCI into Income (Effective Portion)	0.1	0.1
Cash flow hedges \| Foreign exchange contracts
(Losses) gains related to cash flow hedges
Amount of (Loss) Gain Recognized in AOCI on Derivatives (Effective Portion)	0.2	1.5
Cash flow hedges \| Foreign exchange contracts \| Revenue
(Losses) gains related to cash flow hedges
Amount of (Loss) Gain Reclassified from AOCI into Income (Effective Portion)	(0.1)	0.3
Amount of (Loss) Gain Reclassified from AOCI into Income (Ineffective Portion)	0.0	0.0
Cash flow hedges \| Commodity contracts
(Losses) gains related to cash flow hedges
Amount of (Loss) Gain Recognized in AOCI on Derivatives (Effective Portion)	(18.5)	(28.3)
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)	(9.3)	2.0
Amount of (Loss) Gain Reclassified from AOCI into Income (Ineffective Portion)	0.0	0.4
Fair Value Hedging [Member] \| Interest rate swaps
(Losses) gains related to cash flow hedges
Amount of (Loss) Gain Reclassified from AOCI into Income (Ineffective Portion)	$ 0.0	$ 0.0

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (c)

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- Definition

The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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