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Redeemable Noncontrolling Interest (Details) - USD ($)
$ in Millions
12 Months Ended
Aug. 31, 2020
Aug. 31, 2020
Aug. 30, 2018
Aug. 29, 2019
Redeemable Noncontrolling Interest [Line Items]        
Payments for repurchase of redeemable noncontrolling interest $ 102      
Micron Semiconductor Asia Operations Pt. Ltd.        
Redeemable Noncontrolling Interest [Line Items]        
Redeemable noncontrolling interest, shares authorized       100,000
Redeemable noncontrolling interest, shares Issued       100,000
Net proceeds from issuance of redeemable preferred stock     $ 97  
Cumulative fixed dividend on redeemable noncontrolling interests   7.75%