Accumulated Other Comprehensive Income (Loss) (Components Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Apr. 28, 2024	Apr. 30, 2023	Apr. 28, 2024	Apr. 30, 2023	Jul. 30, 2023	Jul. 31, 2022
Beginning Balance				$ (3)
Other comprehensive income (loss), after-tax		$ 8	$ (2)	(12)	$ (8)
Ending Balance		(15)		(15)
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		(3)	0	(3)	0	(1)	0
Accumulated Other Comprehensive Income Unamortized Pension And Post Retirement Tax (Benefit) Expense		1	1	1	1	$ 1	$ 1
Accumulated Translation Adjustment [Member]
Beginning Balance	[1]			(1)	0
Other Comprehensive Income (Loss) Before Reclassifications Net Of Tax				(6)	(7)
Other Comprehensive Income Reclassifications Current Period Net of Tax				0	0
Other comprehensive income (loss), after-tax				(6)	(7)
Ending Balance	[1]	(7)	(7)	(7)	(7)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Beginning Balance	[2]			(4)	0
Other Comprehensive Income (Loss) Before Reclassifications Net Of Tax				(5)	5
Other Comprehensive Income Reclassifications Current Period Net of Tax				(1)	(6)
Other comprehensive income (loss), after-tax				(6)	(1)
Ending Balance	[2]	(10)	(1)	(10)	(1)
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				0	0
Other Comprehensive Income Reclassifications Current Period Net of Tax				0	0
Other comprehensive income (loss), after-tax				0	0
Ending Balance	[3]	2	2	2	2
Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance				(3)	2
Other Comprehensive Income (Loss) Before Reclassifications Net Of Tax				(11)	(2)
Other Comprehensive Income Reclassifications Current Period Net of Tax				(1)	(6)
Other comprehensive income (loss), after-tax		8	(2)	(12)	(8)
Ending Balance		$ (15)	$ (6)	$ (15)	$ (6)

[1] Included no tax as of April 28, 2024, July 30, 2023, April 30, 2023 and July 31, 2022.

[2] Included a tax benefit of $3 million as of April 28, 2024 and $1 million as of July 30, 2023, and no tax as of April 30, 2023 and July 31, 2022.

[3] Included tax expense of $1 million as of April 28, 2024, July 30, 2023, April 30, 2023 and July 31, 2022.