Revenue - Allowance for Accounts Receivable (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 27, 2024	Jul. 29, 2023	Jul. 30, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss at beginning of fiscal year	$ 85	$ 83	$ 109
Provisions (benefits)	36	39	64
Recoveries (write-offs), net	(34)	(37)	(81)
Foreign exchange and other	0	0	(9)
Allowance for credit loss at end of fiscal year	$ 87	$ 85	$ 83