INCOME TAX (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015	Aug. 31, 2015
Income Tax Disclosure [Abstract]
Effective income tax rate from continuing operations	23.30%	36.10%	25.50%	31.60%
Statutory income tax rate	35.00%		35.00%
Effective income tax rate from discontinued operations	0.00%	3.90%	0.60%	2.20%
Net income tax payments			$ 36.0	$ 46.7
Unrecognized income tax benefits	$ 17.8		17.8		$ 27.3
Possible unrecognized income tax benefits decrease during the next twelve months	8.3		8.3
Unrecognized income tax benefits that would reduce provisions for income taxes	$ 2.5		$ 2.5