Leases (Details) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
		May 28, 2020	May 28, 2020	Aug. 29, 2019
Components of Lease Expense
Amortization of right-of-use asset		$ 29	$ 108
Interest on lease liability		6	17
Operating leases		27	75
Total lease cost		62	200
Cash flows used for operating activities
Finance leases			18
Operating leases	[1]		15
Cash flows used for financing activities
Finance leases			171
Finance leases, noncash acquisitions of right-of-use assets			81
Operating leases, noncash acquisitions of right-of-use assets			32
Proceeds from tenant allowance			48
Lessee, Finance Lease, Description [Abstract]
Finance lease right-of-use assets (included in property, plant, and equipment)		$ 550	$ 550
Finance leases, Weighted-average remaining lease term (in years)		4 years 8 months 12 days	4 years 8 months 12 days
Finance leases, Weighted-average discount rate		4.64%	4.64%
Lessee, Operating Lease, Description [Abstract]
Operating leases, Weighted-average remaining lease term (in years)		7 years 1 month 6 days	7 years 1 month 6 days
Operating leases, Weighted-average discount rate		2.67%	2.67%
Finance Lease Maturities
Remainder of 2020		$ 85	$ 85
2021		86	86
2022		83	83
2023		58	58
2024		47	47
2025 and thereafter		280	280
Less imputed interest		(110)	(110)
Finance Lease Liability		529	529	$ 591
Operating Lease Maturities
Remainder of 2020		18	18
2021		69	69
2022		67	67
2023		63	63
2024		54	54
2025 and thereafter		445	445
Less imputed interest		(122)	(122)
Operating Lease Liability		594	594
Operating Leases Not yet Commenced
Payment obligations		$ 150	$ 150
Lease term		10 years	10 years
Minimum lease period			3 years
Renewal term		10 years	10 years
Finance Lease Not yet Commenced
Payment obligations		$ 805	$ 805
Noncancelable Operating Lease Commitments
2020				54
2021				64
2022				63
2023				59
2024				53
2025 and thereafter				$ 459
Weighted Average
Lessee, Lease, Description [Line Items]
Lease term		15 years	15 years
Finance Lease Not yet Commenced
Lease term		15 years	15 years
Real Estate | Minimum
Lessee, Lease, Description [Line Items]
Operating lease renewal term		1 year	1 year
Real Estate | Maximum
Lessee, Lease, Description [Line Items]
Operating lease renewal term		10 years	10 years
Land | Minimum
Lessee, Lease, Description [Line Items]
Operating lease renewal term		1 year	1 year
Land | Maximum
Lessee, Lease, Description [Line Items]
Operating lease renewal term		30 years	30 years

[1] $48 million of reimbursements received for tenant improvements.