Supplemental Financial Statement Data (Property, Plant and Equipment) (Details) - USD ($) $ in Millions		12 Months Ended
		Jul. 28, 2024	Jul. 30, 2023	Jul. 31, 2022
Land		$ 74	$ 74
Buildings and Improvements, Gross		1,702	1,547
Machinery and Equipment, Gross		4,328	4,004
Projects in Progress, Gross		314	291
Property, Plant and Equipment, Gross		6,418	5,916
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	[1]	(3,720)	(3,518)
Plant assets, net of depreciation		2,698	2,398
Depreciation		$ 338	$ 339	$ 296
Building [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life		7 years
Building [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life		45 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life		1 year
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life		20 years

[1] Depreciation expense was $338 million in 2024, $339 million in 2023 and $296 million in 2022. Buildings are depreciated over periods ranging from 7 to 45 years. Machinery and equipment are depreciated over periods generally ranging from 1 to 20 years.