Revenue - Allowance for Accounts Receivable (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 29, 2023	Jul. 30, 2022	Jul. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss at beginning of fiscal year	$ 83	$ 109	$ 143
Provisions (benefits)	39	64	21
Recoveries (write-offs), net	(37)	(81)	(29)
Foreign exchange and other	0	(9)	(26)
Allowance for credit loss at end of fiscal year	$ 85	$ 83	$ 109