Financing Receivables - Summary of Allowances for Credit Loss and Related Financing Receivables (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 24, 2026	Jan. 25, 2025	Jan. 24, 2026	Jan. 25, 2025
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss, beginning of period	$ 51	$ 64	$ 50	$ 65
Provisions (benefits)	(6)	(4)	(5)	(5)
Recoveries (write-offs), net			(3)	(3)
Foreign exchange and other			2	2
Allowance for credit loss, end of period	45	59	45	59
Loan Receivables
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss, beginning of period	37	49	37	50
Provisions (benefits)	(3)	(2)	(3)	(3)
Recoveries (write-offs), net			(3)	(3)
Foreign exchange and other			1	1
Allowance for credit loss, end of period	34	45	34	45
Lease Receivables
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss, beginning of period	14	15	13	15
Provisions (benefits)	(3)	(2)	(2)	(2)
Recoveries (write-offs), net			0	0
Foreign exchange and other			1	1
Allowance for credit loss, end of period	$ 11	$ 14	$ 11	$ 14