Accumulated Other Comprehensive Income (Loss) (Components Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jan. 26, 2025	Jan. 28, 2024	Jan. 26, 2025	Jan. 28, 2024	Jul. 28, 2024	Jul. 30, 2023
Beginning Balance				$ (17)
Other comprehensive income (loss), after-tax		$ (3)	$ (17)	1	$ (20)
Ending Balance		(16)		(16)
Accumulated Other Comprehensive Income Foreign Currency Translation Tax (Benefit) Expense		0	0	0	0	$ 0	$ 0
Accumulated Other Comprehensive Income Cashflow Hedges Tax (Benefit) Expense		(2)	(5)	(2)	(5)	(2)	(1)
Accumulated Other Comprehensive Income Unamortized Pension And Post Retirement Tax (Benefit) Expense		3	1	3	1	$ 1	$ 1
Accumulated Translation Adjustment [Member]
Beginning Balance	[1]			(10)	(1)
Other Comprehensive Income (Loss) Before Reclassifications Net Of Tax				(7)	(3)
Other Comprehensive Income Reclassifications Current Period Net of Tax				0	0
Other comprehensive income (loss), after-tax				(7)	(3)
Ending Balance	[1]	(17)	(4)	(17)	(4)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Beginning Balance	[2]			(9)	(4)
Other Comprehensive Income (Loss) Before Reclassifications Net Of Tax				3	(16)
Other Comprehensive Income Reclassifications Current Period Net of Tax				0	(1)
Other comprehensive income (loss), after-tax				3	(17)
Ending Balance	[2]	(6)	(21)	(6)	(21)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member]
Beginning Balance	[3]			2	2
Other Comprehensive Income (Loss) Before Reclassifications Net Of Tax				5	0
Other Comprehensive Income Reclassifications Current Period Net of Tax				0	0
Other comprehensive income (loss), after-tax				5	0
Ending Balance	[3]	7	2	7	2
Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance				(17)	(3)
Other Comprehensive Income (Loss) Before Reclassifications Net Of Tax				1	(19)
Other Comprehensive Income Reclassifications Current Period Net of Tax				0	(1)
Other comprehensive income (loss), after-tax		(3)	(17)	1	(20)
Ending Balance		$ (16)	$ (23)	$ (16)	$ (23)

[1] Included no tax as of January 26, 2025, July 28, 2024, January 28, 2024 and July 30, 2023.

[2] Included a tax benefit of $2 million as of January 26, 2025, and July 28, 2024, $5 million as of January 28, 2024 and $1 million as of July 30, 2023.

[3] Included tax expense of $3 million as of January 26, 2025, and $1 million as of July 28, 2024, January 28, 2024 and July 30, 2023.