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Overview and Summary of Significant Accounting Policies - Concentrations of Risk (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2018 | Oct. 31, 2017
Hewlett Packard Enterprise |  |
Concentration Risk |  |
Net income tax indemnification receivables | $ 1,000 | $ 1,700
Accounts Receivable | Major Customers | Ten largest distributor |  |
Concentration Risk |  |
Concentration of credit risk (as a percent) | 39.00% | 34.00%
Accounts Receivable | Major Customers | Three largest outsourced manufacturer |  |
Concentration Risk |  |
Concentration of credit risk (as a percent) | 72.00% | 70.00%
Supplier receivables | $ 1,074 | $ 951

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