Financing Receivables - Schedule of Financing Receivables (Details) - USD ($) $ in Millions	Oct. 28, 2023	Jul. 29, 2023	Oct. 29, 2022	Jul. 30, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross	$ 6,841	$ 6,925
Residual value	68	70
Unearned income	(97)	(88)
Allowance for credit loss	(74)	(72)	$ (120)	$ (126)
Total, net	6,738	6,835
Current	3,414	3,352
Noncurrent	3,324	3,483
Loan Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross	5,729	5,910
Unearned income	0	0
Allowance for credit loss	(58)	(53)	(101)	(103)
Total, net	5,671	5,857
Current	2,986	2,988
Noncurrent	2,685	2,869
Lease Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross	1,112	1,015
Residual value	68	70
Unearned income	(97)	(88)
Allowance for credit loss	(16)	(19)	$ (19)	$ (23)
Total, net	1,067	978
Current	428	364
Noncurrent	$ 639	$ 614