Leases (Details) - USD ($) $ in Millions	3 Months Ended	8 Months Ended
	May 10, 2020	May 10, 2020	Sep. 01, 2019
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 2,749	$ 2,749	$ 0
Finance Lease, Right-of-Use Asset	638	638
COST_OperatingLeaseandFinanceLeaserightofuseassets	3,387	3,387
Operating Lease, Liability, Current	223	223
Finance Lease, Liability, Current	29	29
Operating Lease, Liability, Noncurrent	2,535	2,535	0
Finance Lease, Liability, Noncurrent	629	629
COST_OperatingLeaseandFinanceLeaseLiabilities	$ 3,416	$ 3,416
Operating Lease, Weighted Average Remaining Lease Term	21 years	21 years
Finance Lease, Weighted Average Remaining Lease Term	19 years	19 years
Operating Lease, Weighted Average Discount Rate, Percent	2.25%	2.25%
Finance Lease, Weighted Average Discount Rate, Percent	6.47%	6.47%
Operating Lease, Cost	$ 54	$ 156
Finance Lease, Right-of-Use Asset, Amortization	7	15
Finance Lease, Interest Expense	6	21
Variable Lease, Cost	19	55
Lease, Cost	86	247
Operating Lease, Payments		149
Finance Lease, Interest Payment on Liability		21
Finance Lease, Principal Payments		40
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability		235
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability		272
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	73	73
Lessee, Operating Lease, Liability, Payments, Due Year Two	267	267
Lessee, Operating Lease, Liability, Payments, Due Year Three	242	242
Lessee, Operating Lease, Liability, Payments, Due Year Four	236	236
Lessee, Operating Lease, Liability, Payments, Due Year Five	203	203
Lessee, Operating Lease, Liability, Payments, Due after Year Five	2,500	2,500
Lessee, Operating Lease, Liability, Payments, Due	3,521	3,521
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	763	763
Operating Lease, Liability	2,758	2,758
Finance Lease, Liability, Payments, Remainder of Fiscal Year	16	16
Finance Lease, Liability, Payments, Due Year Two	60	60	53
Finance Lease, Liability, Payments, Due Year Three	60	60	38
Finance Lease, Liability, Payments, Due Year Four	64	64	39
Finance Lease, Liability, Payments, Due Year Five	60	60	39
Finance Lease, Liability, Payments, Due after Year Five	817	817	544
Finance Lease, Liability, Payment, Due	1,077	1,077	764
Finance Lease, Liability, Undiscounted Excess Amount	419	419	343
Finance Lease, Liability	658	658	421
Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals	99	99	105
COST_LesseeOperatingLeaseNotYetCommenced	$ 144	$ 144
Operating Leases, Future Minimum Payments Receivable, Current			239
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
Finance Lease, Liability, Payments, Due Next Twelve Months			$ 51