Financing Receivables - Schedule of Aging Analysis of Financing Receivables (Details) - USD ($) $ in Millions	Jul. 29, 2023	Jul. 30, 2022
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	$ 6,837	$ 7,964
120+ Still Accruing	23	21
Nonaccrual Financing Receivables	15	71
Impaired Financing Receivables	15	71
Total Past Due
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	147	329
Past due 31 - 60 days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	63	106
Past due 61 -90 days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	24	68
Past due 91 or above days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	60	155
Current
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	6,690	7,635
Loan Receivables
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	5,910	6,842
120+ Still Accruing	17	14
Nonaccrual Financing Receivables	12	60
Impaired Financing Receivables	12	60
Loan Receivables | Total Past Due
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	104	289
Loan Receivables | Past due 31 - 60 days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	47	98
Loan Receivables | Past due 61 -90 days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	20	62
Loan Receivables | Past due 91 or above days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	37	129
Loan Receivables | Current
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	5,806	6,553
Lease Receivables
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	927	1,122
120+ Still Accruing	6	7
Nonaccrual Financing Receivables	3	11
Impaired Financing Receivables	3	11
Lease Receivables | Total Past Due
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	43	40
Lease Receivables | Past due 31 - 60 days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	16	8
Lease Receivables | Past due 61 -90 days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	4	6
Lease Receivables | Past due 91 or above days
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	23	26
Lease Receivables | Current
Financing Receivable, Past Due [Line Items]
Gross Financing Receivables	$ 884	$ 1,082