Leases - Additional Information (Details) $ in Millions	3 Months Ended	9 Months Ended
	May 31, 2020 USD ($)	May 31, 2020 USD ($)
Lessee Lease Description [Line Items]
Lease cost	$ 7	$ 21
Operating lease expense	6	17
Short-term lease expense	$ 1	$ 3
Minimum
Lessee Lease Description [Line Items]
Operating lease non-cancellable lease term	5 years	5 years
Operating lease renewal option, years		5 years
Maximum
Lessee Lease Description [Line Items]
Short-term election non-cancellable lease term		12 months
Short-term election lease term renewal option		12 months
Operating lease non-cancellable lease term	10 years	10 years
Operating lease renewal option, years		20 years
Maximum | Machinery and Equipment
Lessee Lease Description [Line Items]
Finance lease and other operating leases non-cancellable lease term		10 years