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Commitments and Contingencies (Schedule of Future Minimum Lease Payments Under All Noncancelable Operating Leases) (Details)
$ in Millions
Jan. 27, 2018
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2018 (remaining six months) $ 220
2019 323
2020 239
2021 147
2022 122
Thereafter 178
Total $ 1,229