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Balance Sheet Details - Other Current Assets (Details) - USD ($)
$ in Millions
Apr. 30, 2017
Oct. 31, 2016
Balance Sheet Related Disclosures [Abstract]    
Value-added taxes receivable $ 673 $ 762
Manufacturer and other receivables 1,055 1,010
Prepaid and other current assets 1,364 999
Total $ 3,092 $ 2,771