DERIVATIVES (Commodity Contract Commitments) (Details) MWh in Thousands	3 Months Ended
Nov. 30, 2021 MWh MMBTU t
Aluminum \| Long
Derivative [Line Items]
Commodity contract commitments	1,875
Copper \| Long
Derivative [Line Items]
Commodity contract commitments	612
Copper \| Short
Derivative [Line Items]
Commodity contract commitments	9,095
Electricity \| Long
Derivative [Line Items]
Commodity contract commitment, energy \| MWh	1,817
Natural Gas \| Long
Derivative [Line Items]
Commodity contract commitment, energy \| MMBTU	1,631,700

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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