Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	May 31, 2014		May 31, 2013	Feb. 28, 2013	May 31, 2014		May 31, 2013
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal statutory rate	35.00%	[1]	35.00%		35.00%	[1]	35.00%
State taxes, net of credits	(38.70%)		(1.30%)		(0.30%)		(1.10%)
Foreign income taxed at different rates	197.40%		41.00%		10.10%		14.70%
Section 199 deduction	0.00%		(10.40%)		0.00%		(12.00%)
Non-deductible officers’ compensation	25.60%		3.00%		3.10%		1.40%
Noncontrolling interests	(105.40%)		(5.70%)		(12.90%)		(5.30%)
Research and development credits	0.00%		(3.90%)		0.00%		(3.70%)
Fixed asset tax basis adjustment	601.20%		0.00%		78.80%		0.00%
Tax return to provision adjustment	47.80%		0.00%		6.30%		0.00%
Valuation allowance on deferred tax assets	226.00%		0.00%		4.20%		0.00%
Unrecognized tax benefits	167.40%		0.00%		20.20%		0.00%
Other non-deductible expenses	20.20%		9.30%		2.50%		3.40%
Other	5.90%		(1.20%)		1.10%		(0.30%)
Effective tax rate	1182.40%		65.80%		148.10%		32.10%
Tax Benefit Recognized on Fixed Asset Adjustment in Tax Basis, Amount	$ 2				$ 2
Tax Benefit Recognized On Qualified Production Activities and Research and Development Credits				$ 1			$ 1

[1] For periods with reported pre-tax losses, the effect of reconciling items with positive signs is tax benefit in excess of the benefit calculated by applying the federal statutory rate to the pre-tax loss.