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REVENUE - Contract Assets and Liability (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Jul. 31, 2021 | Jul. 31, 2020 | Oct. 31, 2020
Contract Asset |  |  |
Contract Assets (Unbilled Accounts Receivable) | $ 182 |  | $ 153
Contract Liability |  |  |
Contract liability ending balance as of October 31, 2020 | 446 |  |
Net revenue deferred in the period | 361 |  |
Revenue recognized that was included in the contract liability balance at the beginning of the period | (322) | $ (273) |
Change in deferrals from customer cash advances, net of revenue recognized | 26 |  |
Currency Translation and Other Adjustment | 4 |  |
Contract liability ending balance as of July 31, 2021 | $ 515 |  |

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