Leases (Maturity of Lease Liabilities) (Details) $ in Millions	Aug. 02, 2020 USD ($)
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 73
Operating Leases, Future Minimum Payments, Due in Two Years	42
Operating Leases, Future Minimum Payments, Due in Three Years	36
Operating Leases, Future Minimum Payments, Due in Four Years	27
Operating Leases, Future Minimum Payments, Due in Five Years	22
Operating Leases, Future Minimum Payments, Due Thereafter	77
Operating Leases, Future Minimum Payments Due	277
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	26
Operating Lease, Liability	251
Finance Lease, Liability, to be Paid, Year One	3
Finance Lease, Liability, to be Paid, Year Two	4
Finance Lease, Liability, to be Paid, Year Three	3
Finance Lease, Liability, to be Paid, Year Four	0
Finance Lease, Liability, to be Paid, Year Five	0
Finance Lease, Liability, to be Paid, after Year Five	0
Finance Lease, Liability, Payment, Due	10
Finance Lease, Liability, Undiscounted Excess Amount	0
Finance Lease, Liability	10
Short-term debt, Accrued liabilities, Long-term debt, Other long-term liabilities
Operating Lease, Liability	251
Finance Lease, Liability	$ 10