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Financing Receivables - Schedule of Financing Receivables Categorized by Internal Credit Risk Rating (Details) - USD ($)
$ in Millions
Apr. 27, 2024
Jul. 29, 2023
Financing Receivable, Credit Quality Indicator [Line Items]    
Origination year - Prior $ 38 $ 18
Origination year - Fiscal Year 2019/2018 208 108
Origination year - Fiscal Year 2020/2019 689 500
Origination year - Fiscal Year 2021/2020 1,068 1,268
Origination year - Fiscal Year 2022/2021 1,923 1,747
Origination year - Fiscal Year 2023/2022 2,764 3,196
Gross 6,690 6,837
Loan Receivables    
Financing Receivable, Credit Quality Indicator [Line Items]    
Origination year - Prior 33 14
Origination year - Fiscal Year 2019/2018 167 74
Origination year - Fiscal Year 2020/2019 601 397
Origination year - Fiscal Year 2021/2020 944 1,095
Origination year - Fiscal Year 2022/2021 1,552 1,571
Origination year - Fiscal Year 2023/2022 2,342 2,759
Gross 5,639 5,910
Lease Receivables    
Financing Receivable, Credit Quality Indicator [Line Items]    
Origination year - Prior 5 4
Origination year - Fiscal Year 2019/2018 41 34
Origination year - Fiscal Year 2020/2019 88 103
Origination year - Fiscal Year 2021/2020 124 173
Origination year - Fiscal Year 2022/2021 371 176
Origination year - Fiscal Year 2023/2022 422 437
Gross 1,051 927
1 to 4 | Loan Receivables    
Financing Receivable, Credit Quality Indicator [Line Items]    
Origination year - Prior 12 10
Origination year - Fiscal Year 2019/2018 120 53
Origination year - Fiscal Year 2020/2019 445 251
Origination year - Fiscal Year 2021/2020 675 791
Origination year - Fiscal Year 2022/2021 1,009 1,077
Origination year - Fiscal Year 2023/2022 1,423 1,784
Gross 3,684 3,966
1 to 4 | Lease Receivables    
Financing Receivable, Credit Quality Indicator [Line Items]    
Origination year - Prior 2 2
Origination year - Fiscal Year 2019/2018 21 20
Origination year - Fiscal Year 2020/2019 54 57
Origination year - Fiscal Year 2021/2020 61 111
Origination year - Fiscal Year 2022/2021 213 84
Origination year - Fiscal Year 2023/2022 268 235
Gross 619 509
5 to 6 | Loan Receivables    
Financing Receivable, Credit Quality Indicator [Line Items]    
Origination year - Prior 18 3
Origination year - Fiscal Year 2019/2018 46 14
Origination year - Fiscal Year 2020/2019 145 131
Origination year - Fiscal Year 2021/2020 187 287
Origination year - Fiscal Year 2022/2021 525 465
Origination year - Fiscal Year 2023/2022 915 936
Gross 1,836 1,836
5 to 6 | Lease Receivables    
Financing Receivable, Credit Quality Indicator [Line Items]    
Origination year - Prior 3 2
Origination year - Fiscal Year 2019/2018 20 13
Origination year - Fiscal Year 2020/2019 31 44
Origination year - Fiscal Year 2021/2020 60 58
Origination year - Fiscal Year 2022/2021 154 87
Origination year - Fiscal Year 2023/2022 150 191
Gross 418 395
7 and Higher | Loan Receivables    
Financing Receivable, Credit Quality Indicator [Line Items]    
Origination year - Prior 3 1
Origination year - Fiscal Year 2019/2018 1 7
Origination year - Fiscal Year 2020/2019 11 15
Origination year - Fiscal Year 2021/2020 82 17
Origination year - Fiscal Year 2022/2021 18 29
Origination year - Fiscal Year 2023/2022 4 39
Gross 119 108
7 and Higher | Lease Receivables    
Financing Receivable, Credit Quality Indicator [Line Items]    
Origination year - Prior 0 0
Origination year - Fiscal Year 2019/2018 0 1
Origination year - Fiscal Year 2020/2019 3 2
Origination year - Fiscal Year 2021/2020 3 4
Origination year - Fiscal Year 2022/2021 4 5
Origination year - Fiscal Year 2023/2022 4 11
Gross $ 14 $ 23