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Commitments and Contingencies (Schedule of Future Minimum Lease Payments Under All Noncancelable Operating Leases) (Details)
$ in Millions
Jan. 26, 2019
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2019 (remaining six months) $ 214
2020 331
2021 233
2022 163
2023 106
Thereafter 117
Total $ 1,164