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Inventories - Narrative (Details) - USD ($) $ in Millions	Aug. 31, 2015	Aug. 31, 2014
Inventory Disclosure [Abstract]
Percentage of LIFO inventory	18.00%	16.00%
Inventory, LIFO Reserve	$ 68.1	$ 538.7

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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- Definition

Amount of difference between inventory at lower of LIFO cost or market and inventory at lower of other inventory accounting method cost or market, for example, but not limited to, FIFO or average cost.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 210



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.5-02.6(c))



-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- Definition

The percentage of LIFO (last in first out) inventory to total inventory as of the balance sheet date if other than 100 percent.

+ References

No definition available.

+ Details

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