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REVENUE CONTRACT LIABILITIES (Tables) | 3 Months Ended
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Jan. 31, 2020
Revenue Recognition and Deferred Revenue [Abstract] |
Contract with Customer, Asset and Liability [Table Text Block] | The following table provides a roll-forward of our contract liabilities, current and non-current:
| Three Months Ended
| January 31, 2020 |  | January 31, 2019
| (in millions)
Balance at October 31 | $ | 510 |  |  | $ | 461 |
Impact of adopting new revenue standard | — |  |  | (64 | )
Balance at November 1 | 510 |  |  | 397 |
Deferral of revenue billed in current period, net of recognition | 161 |  |  | 167 |
Revenue recognized that was deferred as of the beginning of the period | (132 | ) |  | (124 | )
Foreign currency translation impact | — |  |  | 3 |
Balance at January 31 | $ | 539 |  |  | $ | 443 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045 + Details
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