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REVENUE Capitalized contract costs (Tables) | 12 Months Ended
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Oct. 31, 2020
Revenue from Contract with Customer [Abstract] |
Capitalized Contract Cost [Table Text Block] | The following table provides a roll-forward of our capitalized contract costs, current and non-current:
| Year Ended October 31,
| 2020 |  | 2019
| (in millions)
Balance at beginning of period | $ | 28 |  |  | $ | — |
Costs capitalized on November 1, 2018 due to ASC 606 adoption | — |  |  | 29 |
Costs capitalized during the period | 86 |  |  | 63 |
Costs amortized during the period | (83 | ) |  | (64 | )
Balance at end of period | $ | 31 |  |  | $ | 28 |

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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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- References No definition available. + Details
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