Leases (Costs) (Details) - USD ($) $ in Millions		12 Months Ended
		Jul. 31, 2022	Aug. 01, 2021	Aug. 02, 2020
Operating Lease, Cost		$ 79	$ 80	$ 81
Finance Lease, Right-of-Use Asset, Amortization		17	6	2
Short-term Lease, Cost		56	48	39
Variable Lease, Cost	[1]	202	201	172
Sublease Income		0	(2)	(3)
Lease, Cost	[2]	$ 354	$ 333	291
Loss from discontinued operations [Member]
Lease, Cost				$ 4

[1] Includes labor and other overhead included in our service contracts with embedded leases.

[2] Total lease cost in 2020 included $4 million related to discontinued operations