Accumulated Other Comprehensive Income (Loss) (Schecule of amounts reclassified from AOCI) (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 27, 2024	Oct. 29, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest expense	$ (87)	$ (49)
Taxes on earnings	(66)	(76)
Net Income (Loss) Attributable to Parent	218	234
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]
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax	(1)	0
Taxes on earnings	0	0
Net Income (Loss) Attributable to Parent	(1)	0
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	$ (1)	$ 0