Derivatives and Hedging Activities (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Gains (losses) related to cash flow hedges
Net derivative losses included in AOCI expected to be reclassified into earnings			$ 10.2
Cash flow hedges
Gains (losses) related to cash flow hedges
Amount of (Loss) Gain Reclassified from AOCI into Income (Effective Portion)	(7.2)	(4.9)	(16.3)	(6.4)
Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)	(29.1)	12.2	(6.9)	(40.1)
Changes in AOCI associated with derivative hedging activities
Balance, beginning	(13.1)	(29.9)	(32.8)	2.6
Current period changes in fair value, net of tax	(18.3)	3.5	(4.3)	(29.7)
Reclassification to earnings, net of tax	4.5	4.0	10.2	4.7
Balance, ending	(26.9)	(22.4)	(26.9)	(22.4)
Cash flow hedges \| Commodity contracts
Gains (losses) related to cash flow hedges
Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)	(30.6)	13.4	(6.6)	(40.3)
Cash flow hedges \| Commodity contracts \| Cost of Sales
Gains (losses) related to cash flow hedges
Amount of (Loss) Gain Reclassified from AOCI into Income (Effective Portion)	(6.9)	(5.3)	(16.1)	(6.8)
Cash flow hedges \| Foreign exchange contracts
Gains (losses) related to cash flow hedges
Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)	0.7	(1.2)	0.6	0.2
Cash flow hedges \| Foreign exchange contracts \| Net Sales
Gains (losses) related to cash flow hedges
Amount of (Loss) Gain Reclassified from AOCI into Income (Effective Portion)	(0.3)	0.4	(0.2)	0.4
Cash flow hedges \| Forward interest rate swaps
Gains (losses) related to cash flow hedges
Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)	$ 0.8		$ (0.9)

Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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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.

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- Definition

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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- Definition

Net of tax amount of the income statement impact of the reclassification adjustment of accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges realized in net income. Also includes reclassification adjustments of an entity's share of an equity investee's deferred hedging gain (loss) realized in net income.

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- Definition

Net of tax amount, before reclassification adjustments, of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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