Fair Value Measurements - Estimated Fair Value Of Company Long Term Debt (Details) - USD ($) $ in Millions	Jul. 29, 2023	Jul. 30, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Notional Amount	$ 3,007	$ 3,007
Carrying Amount	2,997	2,995
Fair Value	$ 2,482	$ 2,506