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REVENUE CAPITALIZED CONTRACTUAL COST (Tables) | 3 Months Ended
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Jan. 31, 2020
Capitalized Contract Cost [Line Items] |
Capitalized Contract Cost [Abstract] | The following table provides a roll-forward of our capitalized contract costs, current and non-current:
| Three Months Ended
| January 31, 2020 |  | January 31, 2019
| (in millions)
Beginning balance | $ | 28 |  |  | $ | — |
Costs capitalized on November 1, 2018 due to ASC 606 adoption | — |  |  | 29 |
Costs capitalized during the period | 16 |  |  | 17 |
Costs amortized during the period | (16 | ) |  | (18 | )
Foreign currency translation impact | — |  |  | 1 |
Ending balance | $ | 28 |  |  | $ | 29 |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of cost capitalized in obtaining or fulfilling contract with customer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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