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Guarantees, Indemnifications and Warranties - Litigation Matters and Other Contingencies (Details) - USD ($) $ in Millions | Oct. 31, 2018 | Oct. 31, 2017
--- | --- | ---
Tax Indemnification |  |
Other Commitments [Line Items] |  |
Indemnification receivable - long-term | $ 16 | $ 1,430
Indemnification receivable - short-term | 17 | 0
Indemnification payable - long-term | 9 | 0
Indemnification payable - short-term | 26 | 36
Cross-Indemnifications |  |
Other Commitments [Line Items] |  |
Receivable | 104 | 150
Payable | $ 83 | 91
HP Inc. | Tax Indemnification |  |
Other Commitments [Line Items] |  |
Indemnification receivable - long-term |  | $ 1,300

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