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NEW ACCOUNTING PRONOUNCEMENTS ASU 2016-09 (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017 | Nov. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Impact of adopting new revenue standard |  |  |  | $ (64)
Net Cash Provided by (Used in) Operating Activities | $ 998,000,000 | $ 555,000,000 | $ 328,000,000 |
Net Cash Provided by (Used in) Financing Activities | $ (122,000,000) | (341,000,000) | 1,425,000,000 |
Previously Reported [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Net Cash Provided by (Used in) Operating Activities |  | 555,000,000 | 328,000,000 |
Net Cash Provided by (Used in) Financing Activities |  | $ (335,000,000) | $ 1,425,000,000 |

X
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