Accumulated Other Comprehensive Income (Loss) (Schecule of amounts reclassified from AOCI) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 26, 2025	Jan. 28, 2024	Jan. 26, 2025	Jan. 28, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of products sold	$ 1,866	$ 1,680	$ 3,771	$ 3,410
Interest expense	(88)	(46)	(175)	(95)
Taxes on earnings	(74)	(68)	(140)	(144)
Net Income (Loss) Attributable to Parent	173	203	391	437
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of products sold	(1)	(2)	(1)	(2)
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax	1	1	0	1
Taxes on earnings	0	0	0	0
Net Income (Loss) Attributable to Parent	1	1	0	1
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Interest Rate Contract [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest expense	0	(1)	(1)	(1)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Foreign Exchange Contract [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of products sold	$ 1	$ 2	$ 1	$ 2