Minimum lease liability ASC 840 (Details) $ in Millions	Feb. 02, 2019 USD ($)
Leases [Abstract]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 1,156
Operating Leases, Future Minimum Payments, Due in Two Years	1,098
Operating Leases, Future Minimum Payments, Due in Three Years	892
Operating Leases, Future Minimum Payments, Due in Four Years	730
Operating Leases, Future Minimum Payments, Due Thereafter	539
Operating Leases, Future Minimum Payments, Due Thereafter	1,520
Operating Leases, Future Minimum Payments Due	$ 5,935