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Financing Receivables and Operating Leases (Schedule of Contractual Maturities of Gross Lease Receivables) (Details)
$ in Millions
Apr. 27, 2019
USD ($)
Receivables [Abstract]  
2019 (remaining three months) $ 308
2020 984
2021 632
2022 341
2023 147
Thereafter 30
Total $ 2,442