SHARE-BASED COMPENSATION - Summary of Information with Respect to Share-Based Compensation (Details) - USD ($) $ in Thousands		12 Months Ended
		Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Total share-based compensation expense included in Net income		$ 795,235	$ 758,176	$ 680,329
Income tax benefit related to share-based compensation included in Net income (1)	[1]	349,114	236,423	212,019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income Tax Expense (Benefit)		981,100	$ 1,253,969	$ 1,136,741
New Accounting Pronouncement, Early Adoption, Effect [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income Tax Expense (Benefit)		$ 99,649

[1] Includes $99,649 of excess tax benefits in fiscal 2017 related to the adoption of ASU 2016-09 on September 1, 2016.