Financing Receivables - Schedule of Aging Analysis of Financing Receivables (Details) - USD ($) $ in Millions	Oct. 28, 2023	Jul. 29, 2023
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	$ 6,744	$ 6,837
120+ Still Accruing	21	23
Nonaccrual Financing Receivables	14	15
Impaired Financing Receivables	14	15
Total Past Due
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	221	147
31-60
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	91	63
61-90
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	70	24
91+
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	60	60
Current
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	6,523	6,690
Loan Receivables
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	5,729	5,910
120+ Still Accruing	16	17
Nonaccrual Financing Receivables	12	12
Impaired Financing Receivables	12	12
Loan Receivables | Total Past Due
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	176	104
Loan Receivables | 31-60
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	73	47
Loan Receivables | 61-90
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	58	20
Loan Receivables | 91+
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	45	37
Loan Receivables | Current
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	5,553	5,806
Lease Receivables
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	1,015	927
120+ Still Accruing	5	6
Nonaccrual Financing Receivables	2	3
Impaired Financing Receivables	2	3
Lease Receivables | Total Past Due
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	45	43
Lease Receivables | 31-60
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	18	16
Lease Receivables | 61-90
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	12	4
Lease Receivables | 91+
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	15	23
Lease Receivables | Current
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	$ 970	$ 884