Financing Receivables - Schedule of Aging Analysis of Financing Receivables (Details) - USD ($) $ in Millions	Oct. 29, 2022	Jul. 30, 2022
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	$ 7,351	$ 7,964
120+ Still Accruing	23	21
Nonaccrual Financing Receivables	70	71
Impaired Financing Receivables	70	71
Total Past Due
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	345	329
Past due 31-60 days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	160	106
Past due 61-90 days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	40	68
Past due 91 or above days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	145	155
Current
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	7,006	7,635
Loan Receivables
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	6,277	6,842
120+ Still Accruing	16	14
Nonaccrual Financing Receivables	60	60
Impaired Financing Receivables	60	60
Loan Receivables | Total Past Due
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	287	289
Loan Receivables | Past due 31-60 days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	143	98
Loan Receivables | Past due 61-90 days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	26	62
Loan Receivables | Past due 91 or above days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	118	129
Loan Receivables | Current
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	5,990	6,553
Lease Receivables
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	1,074	1,122
120+ Still Accruing	7	7
Nonaccrual Financing Receivables	10	11
Impaired Financing Receivables	10	11
Lease Receivables | Total Past Due
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	58	40
Lease Receivables | Past due 31-60 days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	17	8
Lease Receivables | Past due 61-90 days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	14	6
Lease Receivables | Past due 91 or above days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	27	26
Lease Receivables | Current
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	$ 1,016	$ 1,082