Financing Receivables - Summary of Allowances for Credit Loss and Related Financing Receivables (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 26, 2025	Apr. 27, 2024	Apr. 26, 2025	Apr. 27, 2024
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss, beginning of period	$ 59	$ 69	$ 65	$ 72
Provisions (benefits)	(3)	(3)	(8)	(2)
Recoveries (write-offs), net		(1)	(3)	(5)
Foreign exchange and other	2	(1)	4	(1)
Allowance for credit loss, end of period	58	64	58	64
Loan Receivables
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss, beginning of period	45	53	50	53
Provisions (benefits)	(2)	(3)	(5)	1
Recoveries (write-offs), net		0	(3)	(4)
Foreign exchange and other	1	(1)	2	(1)
Allowance for credit loss, end of period	44	49	44	49
Lease Receivables
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss, beginning of period	14	16	15	19
Provisions (benefits)	(1)	0	(3)	(3)
Recoveries (write-offs), net		(1)	0	(1)
Foreign exchange and other	1	0	2	0
Allowance for credit loss, end of period	$ 14	$ 15	$ 14	$ 15