Leases - Supplemental Information (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 29, 2022	Oct. 30, 2021
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities — operating cash flows	$ 96	$ 98
Right-of-use assets obtained in exchange for operating leases liabilities	$ 35	$ 120