Leases (Details) - USD ($) $ in Millions	3 Months Ended
	Nov. 24, 2019	Sep. 01, 2019
Lessee, Lease, Description [Line Items]
Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals	$ 103	$ 105
Document Period End Date	Nov. 24, 2019
Operating Leases, Future Minimum Payments Receivable, Current		239
Finance Lease, Liability, Payments, Due Next Twelve Months		51
Operating Lease, Weighted Average Remaining Lease Term	21 years
Operating Lease, Payments	$ 40
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	173
Finance Lease, Liability, Payments, Remainder of Fiscal Year	29
Operating Lease, Cost	51
Operating Lease, Right-of-Use Asset	2,597	0
Finance Lease, Right-of-Use Asset	355
Operating Lease, Liability, Current	169
Finance Lease, Liability, Current	12
Operating Lease, Liability, Noncurrent	2,442	0
Finance Lease, Liability, Noncurrent	388
Finance Lease, Right-of-Use Asset, Amortization	4
Finance Lease, Interest Expense	7
Lease, Cost	62
Lessee, Operating Lease, Liability, Payments, Due Year Two	216
Finance Lease, Liability, Payments, Due Year Two	40	53
Lessee, Operating Lease, Liability, Payments, Due Year Three	206
Finance Lease, Liability, Payments, Due Year Three	39	38
Lessee, Operating Lease, Liability, Payments, Due Year Four	212
Finance Lease, Liability, Payments, Due Year Four	42	39
Lessee, Operating Lease, Liability, Payments, Due Year Five	188
Finance Lease, Liability, Payments, Due Year Five	40	39
Lessee, Operating Lease, Liability, Payments, Due after Year Five	2,400
Finance Lease, Liability, Payments, Due after Year Five	557	544
Lessee, Operating Lease, Liability, Payments, Due	3,395
Finance Lease, Liability, Payment, Due	747	764
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	784
Finance Lease, Liability, Undiscounted Excess Amount	347	343
Operating Lease, Liability	2,611
Finance Lease, Liability	400	421
Finance Lease, Interest Payment on Liability	7
Finance Lease, Principal Payments	$ 31
Finance Lease, Weighted Average Remaining Lease Term	15 years
Operating Lease, Weighted Average Discount Rate, Percent	2.25%
Finance Lease, Weighted Average Discount Rate, Percent	8.54%
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 4
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	10
Operating Leases, Future Minimum Payments, Due in Two Years		229
Operating Leases, Future Minimum Payments, Due in Three Years		202
Operating Leases, Future Minimum Payments, Due in Four Years		193
Operating Leases, Future Minimum Payments, Due in Five Years		181
Operating Leases, Future Minimum Payments, Due Thereafter		2,206
Operating Leases, Future Minimum Payments Due		$ 3,250
COST_OperatingLeaseandFinanceLeaseLiabilities	3,011
COST_OperatingLeaseandFinanceLeaserightofuseassets	2,952
COST_LesseeOperatingLeaseNotYetCommenced	$ 250