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NET INCOME PER SHARE (Tables) | 6 Months Ended
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Apr. 30, 2018
Earnings Per Share [Abstract] |
Reconciliation of the numerators and denominators of the basic and diluted net income per share | The following is a reconciliation of the numerator and denominator of the basic and diluted net income per share computations for the periods presented below:
| Three Months Ended |  | Six Months Ended
| April 30, |  | April 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
| (in millions)
Numerator: |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | $ | 205 |  |  | $ | 164 |  |  | $ | (115 | ) |  | $ | 332 |
Denominator: |  |  |  |  |  |  |
Basic weighted-average shares | 322 |  |  | 321 |  |  | 323 |  |  | 322 |
Potential common shares— stock options and other employee stock plans | 4 |  |  | 4 |  |  | — |  |  | 3 |
Diluted weighted-average shares | 326 |  |  | 325 |  |  | 323 |  |  | 325 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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