Property, Plant and Equipment (Additional Information) (Details 2) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2013
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 504.7	$ 461.3	$ 382.6
Maintenance and repair expense	205.5	$ 158.7	$ 153.8
Acquisition of property, plant and equipment considered a non-cash investing activity	$ 72.5