Derivatives and Hedging Activities (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jun. 30, 2013	Jun. 30, 2012
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	$ 0.9	$ 2.6
Derivatives designated as hedging instruments, Liability	73.1	56.5
Interest Rate Swaps
Fair value of derivatives
Derivatives designated as hedging instruments, Asset		1.4
Foreign Currency Contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	0.9	1.2
Derivatives designated as hedging instruments, Liability	0.4	1.9
Commodity Contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	72.7	54.6
Other current assets
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	0.9	1.4
Other current assets \| Interest Rate Swaps
Fair value of derivatives
Derivatives designated as hedging instruments, Asset		0.2
Other current assets \| Foreign Currency Contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Asset	0.9	1.2
Other assets
Fair value of derivatives
Derivatives designated as hedging instruments, Asset		1.2
Other assets \| Interest Rate Swaps
Fair value of derivatives
Derivatives designated as hedging instruments, Asset		1.2
Accrued liabilities
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	29.1	26.5
Accrued liabilities \| Foreign Currency Contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	0.4	1.5
Accrued liabilities \| Commodity Contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	28.7	25.0
Other liabilities
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	44.0	30.0
Other liabilities \| Foreign Currency Contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Liability		0.4
Other liabilities \| Commodity Contracts
Fair value of derivatives
Derivatives designated as hedging instruments, Liability	44.0	29.6
Fair Value Hedging \| Interest Rate Swaps
Fair value of derivatives
Total notional amounts of interest rate contracts	0	45.0
Net gains recorded as a reduction to interest expense	$ 1.4	$ 1.4

Net Increase or Decrease in the fair value of the derivative or group of derivatives included in earnings.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5618551-113959

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- Definition

Aggregate fair value of all derivative assets designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Aggregate fair value of all derivative liabilities designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

+ References

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- Definition

Aggregate notional amount of interest rate derivatives, which relates to the currency amount specified in the interest rate derivative instruments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959

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