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REVENUE - Contract Balances (Details) - USD ($) $ in Millions |  | 9 Months Ended |
--- | --- | --- | ---
Nov. 01, 2018 | Jul. 31, 2019 | Oct. 31, 2018
Contract Assets |  |  |
Contract Assets (Unbilled Accounts Receivable) | $ 57 | $ 122 |
Contract Liabilities |  |  |
Contract liability ending balance as of October 31, 2018 | 367 | 367 |
Net revenue deferred in the period |  | 263 |
Revenue recognized that was included in the contract liability balance at the beginning of the period |  | (230) |
Change in deferrals from customer cash advances, net of revenue recognized |  | 0 |
Contract liabilities acquired in business combinations |  | 2 |
Currency Translation Adjustment |  | 0 |
Contract liability ending balance as of July 31, 2019 |  | 391 |
Transaction Price Allocated to Remaining Performance Obligation |  |  |
Remaining Performance Obligation, Amount |  | 182 |
Majority of Remaining Performance Obligation Expected Timing of Satisfaction, Period |  |  | 12 months
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] |  |  |
Contract Assets |  |  |
Contract Assets (Unbilled Accounts Receivable) |  | $ 65 |
Contract Liabilities |  |  |
Impact of adoption of new guidance on contract liabilities (deferred revenue) | $ (11) |  |

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