Research and Development (Details) - USD ($) $ in Millions	12 Months Ended
Aug. 29, 2019	Aug. 30, 2018	Aug. 31, 2017
Research and Development [Abstract]
Reduction in R and D expenses for reimbursements from partners	$ 60	$ 201	$ 213

Reduction to expense as a result of reimbursements received under a cost sharing arrangement.

No definition available.

Name:	mu_ExpenseReductionFromCostSharingArrangement
Namespace Prefix:	mu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration