Financing Receivables - Schedule of Aging Analysis of Financing Receivables (Details) - USD ($) $ in Millions	Jan. 27, 2024	Jul. 29, 2023
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	$ 6,839	$ 6,837
120+ Still Accruing	34	23
Nonaccrual Financing Receivables	10	15
Impaired Financing Receivables	10	15
Total Past Due
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	209	147
31-60
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	74	63
61-90
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	40	24
91+
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	95	60
Current
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	6,630	6,690
Loan Receivables
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	5,850	5,910
120+ Still Accruing	23	17
Nonaccrual Financing Receivables	8	12
Impaired Financing Receivables	8	12
Loan Receivables | Total Past Due
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	161	104
Loan Receivables | 31-60
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	55	47
Loan Receivables | 61-90
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	32	20
Loan Receivables | 91+
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	74	37
Loan Receivables | Current
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	5,689	5,806
Lease Receivables
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	989	927
120+ Still Accruing	11	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	48	43
Lease Receivables | 31-60
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	19	16
Lease Receivables | 61-90
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	8	4
Lease Receivables | 91+
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	21	23
Lease Receivables | Current
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	$ 941	$ 884