Revenue - Allowance for Accounts Receivable (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 29, 2023	Apr. 30, 2022	Apr. 29, 2023	Apr. 30, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss at beginning of period	$ 86	$ 70	$ 83	$ 109
Provisions (benefits)	9	17	23	53
Recoveries (write-offs), net	(12)	(9)	(23)	(75)
Foreign exchange and other	0	0	0	(9)
Allowance for credit loss at end of period	$ 83	$ 78	$ 83	$ 78