EMPLOYEES' RETIREMENT PLANS (Weighted-average Asset Allocations (Details)	Aug. 31, 2020	Aug. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Pension assets, actual allocation (percent)	100.00%	100.00%
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Pension assets, actual allocation (percent)	48.10%	50.10%
Fixed income securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Pension assets, target allocation (percent)	45.00%
Fixed income securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Pension assets, target allocation (percent)	50.00%
Domestic
Defined Benefit Plan Disclosure [Line Items]
Pension assets, actual allocation (percent)	26.90%	26.00%
Domestic | Minimum
Defined Benefit Plan Disclosure [Line Items]
Pension assets, target allocation (percent)	25.00%
Domestic | Maximum
Defined Benefit Plan Disclosure [Line Items]
Pension assets, target allocation (percent)	30.00%
International
Defined Benefit Plan Disclosure [Line Items]
Pension assets, actual allocation (percent)	13.10%	12.70%
International | Minimum
Defined Benefit Plan Disclosure [Line Items]
Pension assets, target allocation (percent)	10.00%
International | Maximum
Defined Benefit Plan Disclosure [Line Items]
Pension assets, target allocation (percent)	15.00%
Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Pension assets, actual allocation (percent)	10.10%	9.50%
Mutual funds | Minimum
Defined Benefit Plan Disclosure [Line Items]
Pension assets, target allocation (percent)	5.00%
Mutual funds | Maximum
Defined Benefit Plan Disclosure [Line Items]
Pension assets, target allocation (percent)	10.00%
Cash
Defined Benefit Plan Disclosure [Line Items]
Pension assets, actual allocation (percent)	1.80%	1.70%
Cash | Minimum
Defined Benefit Plan Disclosure [Line Items]
Pension assets, target allocation (percent)	0.00%
Cash | Maximum
Defined Benefit Plan Disclosure [Line Items]
Pension assets, target allocation (percent)	5.00%