INCOME TAXES (Notes)	6 Months Ended
Apr. 30, 2017
Income Tax Disclosure [Abstract]
INCOME TAXES	4. INCOME TAXES The company’s effective tax rate was 14.1 percent and 13.5 percent for the three and six months ended April 30, 2017, respectively. The company’s effective tax rate was 22.2 percent and 18.1 percent for the three and six months ended April 30, 2016, respectively. The income tax expense was $27 million and $52 million for the three and six months ended April 30, 2017, respectively. The income tax expense was $26 million and $47 million for the three and six months ended April 30, 2016, respectively. The income tax provision for the three and six months ended April 30, 2017 included net discrete tax benefits of $1 million and $3 million, respectively. The net discrete tax benefit for the three months ended April 30, 2017 included $5 million of tax benefit related to return-to-provision adjustments in foreign jurisdictions and $4 million of tax expense related to changes in the realization of the deferred tax assets for unremitted foreign earnings. In addition to the aforementioned, the net discrete tax benefit for the six months ended April 30, 2017 included $7 million of tax benefit for the settlement of an audit in Italy, $11 million of tax expense related to the employee pension settlement gain and $6 million of other discrete tax benefit items. The income tax provision for the three and six months ended April 30, 2016 included net discrete tax expense of $3 million and tax benefit of $3 million, respectively. The net discrete tax expense for the three months ended April 30, 2016 included a tax expense of $7 million for return-to-provision adjustments associated with the filing of the return in Germany, $5 million of which was determined to be out of period. The remaining discrete items in the quarter included an $8 million tax benefit related to the realization of tax credits that reduce the deferred tax liability for unremitted foreign earnings, $2 million tax expense of other miscellaneous return-to-provision adjustments in other foreign jurisdictions and $2 million of miscellaneous other discrete tax expense. In addition to the aforementioned, the net discrete tax benefit for the six months ended April 30, 2016 included $5 million of tax benefit for the extension, which occurred in the first quarter of 2016, of the U.S. research and development tax credit attributable to the company's prior fiscal year, and $6 million of tax expense related to the curtailment gain recognized with respect to the U.S. retirement plan and Supplemental Benefits Plan. The net discrete tax benefit for the six months ended April 30, 2016 also included $9 million of tax benefit related primarily to return-to-provision adjustments in Singapore and $2 million of other discrete tax expense items. In the U.S., tax years remain open back to the year 2012 for federal income tax purposes and the year 2000 for significant states. There were no substantial changes from our 2016 Annual Report on Form 10-K to the status of these open tax years in the first six months of fiscal 2017. In other major jurisdictions where the company conducts business, the tax years generally remain open back to the year 2001. During the first quarter of 2017, the company settled its ongoing tax audit in Italy for the years 2011-2013 resulting in a net tax expense of $7 million. The settlement resulted in the recognition of previously unrecognized tax benefits of approximately $14 million. With these jurisdictions and the U.S., it is reasonably possible that there could be significant changes to our unrecognized tax benefits in the next twelve months due to either the expiration of a statute of limitation or a tax audit settlement which will be partially offset by an anticipated tax liability related to unremitted foreign earnings, where applicable. Given the number of years and numerous matters that remain subject to examination in various tax jurisdictions, management is unable to estimate the range of possible changes to the balance of our unrecognized tax benefits. On July 27, 2015, the U.S. Tax Court issued an opinion in Altera Corp. v. Commissioner related to the treatment of stock-based compensation expense in an intercompany cost-sharing arrangement. A final decision was entered by the U.S. Tax Court on December 1, 2015. The IRS is appealing the decision and filed its arguments opposing the Tax Court decision in June 2016. Due to the uncertainty surrounding the status of the current regulations, questions related to the scope of potential benefits or obligations, and the risk of the Tax Court’s decision being overturned upon appeal, we concluded that no adjustment to our condensed consolidated financial statements is appropriate at this time.

4. INCOME TAXES

The company’s effective tax rate was 14.1 percent and 13.5 percent for the three and six months ended April 30, 2017, respectively. The company’s effective tax rate was 22.2 percent and 18.1 percent for the three and six months ended April 30, 2016, respectively. The income tax expense was $27 million and $52 million for the three and six months ended April 30, 2017, respectively. The income tax expense was $26 million and $47 million for the three and six months ended April 30, 2016, respectively.

The income tax provision for the three and six months ended April 30, 2017 included net discrete tax benefits of $1 million and $3 million, respectively. The net discrete tax benefit for the three months ended April 30, 2017 included $5 million of tax benefit related to return-to-provision adjustments in foreign jurisdictions and $4 million of tax expense related to changes in the realization of the deferred tax assets for unremitted foreign earnings. In addition to the aforementioned, the net discrete tax benefit for the six months ended April 30, 2017 included $7 million of tax benefit for the settlement of an audit in Italy, $11 million of tax expense related to the employee pension settlement gain and $6 million of other discrete tax benefit items.

The income tax provision for the three and six months ended April 30, 2016 included net discrete tax expense of $3 million and tax benefit of $3 million, respectively. The net discrete tax expense for the three months ended April 30, 2016 included a tax expense of $7 million for return-to-provision adjustments associated with the filing of the return in Germany, $5 million of which was determined to be out of period. The remaining discrete items in the quarter included an $8 million tax benefit related to the realization of tax credits that reduce the deferred tax liability for unremitted foreign earnings, $2 million tax expense of other miscellaneous return-to-provision adjustments in other foreign jurisdictions and $2 million of miscellaneous other discrete tax expense. In addition to the aforementioned, the net discrete tax benefit for the six months ended April 30, 2016 included $5 million of tax benefit for the extension, which occurred in the first quarter of 2016, of the U.S. research and development tax credit attributable to the company's prior fiscal year, and $6 million of tax expense related to the curtailment gain recognized with respect to the U.S. retirement plan and Supplemental Benefits Plan. The net discrete tax benefit for the six months ended April 30, 2016 also included $9 million of tax benefit related primarily to return-to-provision adjustments in Singapore and $2 million of other discrete tax expense items.

In the U.S., tax years remain open back to the year 2012 for federal income tax purposes and the year 2000 for significant states. There were no substantial changes from our 2016 Annual Report on Form 10-K to the status of these open tax years in the first six months of fiscal 2017.

In other major jurisdictions where the company conducts business, the tax years generally remain open back to the year 2001. During the first quarter of 2017, the company settled its ongoing tax audit in Italy for the years 2011-2013 resulting in a net tax expense of $7 million. The settlement resulted in the recognition of previously unrecognized tax benefits of approximately $14 million.

With these jurisdictions and the U.S., it is reasonably possible that there could be significant changes to our unrecognized tax benefits in the next twelve months due to either the expiration of a statute of limitation or a tax audit settlement which will be partially offset by an anticipated tax liability related to unremitted foreign earnings, where applicable. Given the number of years and numerous matters that remain subject to examination in various tax jurisdictions, management is unable to estimate the range of possible changes to the balance of our unrecognized tax benefits.

On July 27, 2015, the U.S. Tax Court issued an opinion in Altera Corp. v. Commissioner related to the treatment of stock-based compensation expense in an intercompany cost-sharing arrangement. A final decision was entered by the U.S. Tax Court on December 1, 2015. The IRS is appealing the decision and filed its arguments opposing the Tax Court decision in June 2016. Due to the uncertainty surrounding the status of the current regulations, questions related to the scope of potential benefits or obligations, and the risk of the Tax Court’s decision being overturned upon appeal, we concluded that no adjustment to our condensed consolidated financial statements is appropriate at this time.