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REVISION OF PRIOR PERIOD FINANCIAL STATEMENTS (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended
Apr. 30, 2016
Apr. 30, 2015
Apr. 30, 2016
Apr. 30, 2015
Income Statement        
Income from continuing operations before taxes $ 117 $ 96 $ 259 $ 209
Provision for income taxes 26 4 45 24
Income from continuing operations 91 92 214 185
Loss from discontinued operations, net of tax expense benefit of $2 0 (5) 0 (35)
Net income $ 91 $ 87 $ 214 $ 150
Net income per share - basic        
Income from continuing operations $ 0.28 $ 0.28 $ 0.65 $ 0.55
Loss from discontinued operations 0.00 (0.02) 0.00 (0.10)
Net income per share - basic 0.28 0.26 0.65 0.45
Net income per share - diluted        
Income from continuing operations 0.28 0.27 0.65 0.55
Loss from discontinued operations 0.00 (0.01) 0.00 (0.10)
Net income per share - diluted $ 0.28 $ 0.26 $ 0.65 $ 0.45
Statement of Comprehensive Income        
Total comprehensive income (loss) $ 230 $ 78 $ 306 $ (118)
Statement of Cash Flows        
Deferred taxes     35 4
Other assets and liabilities     (15) (129)
Net Cash Provided by (Used in) Operating Activities     $ 360 163
As Revised        
Income Statement        
Income from continuing operations before taxes   96   209
Provision for income taxes   4   24
Income from continuing operations   92   185
Loss from discontinued operations, net of tax expense benefit of $2   (5)   (35)
Net income   $ 87   $ 150
Net income per share - basic        
Income from continuing operations   $ 0.28   $ 0.55
Loss from discontinued operations   (0.02)   (0.10)
Net income per share - basic   0.26   0.45
Net income per share - diluted        
Income from continuing operations   0.27   0.55
Loss from discontinued operations   (0.01)   (0.10)
Net income per share - diluted   $ 0.26   $ 0.45
Statement of Comprehensive Income        
Total comprehensive income (loss)   $ 78   $ (118)
Statement of Cash Flows        
Deferred taxes       4
Other assets and liabilities       (129)
Net Cash Provided by (Used in) Operating Activities       163
As Previously Reported        
Income Statement        
Income from continuing operations before taxes   96   209
Provision for income taxes   8   19
Income from continuing operations   88   190
Loss from discontinued operations, net of tax expense benefit of $2   (5)   (35)
Net income   $ 83   $ 155
Net income per share - basic        
Income from continuing operations   $ 0.26   $ 0.57
Loss from discontinued operations   (0.01)   (0.11)
Net income per share - basic   0.25   0.46
Net income per share - diluted        
Income from continuing operations   0.26   0.56
Loss from discontinued operations   (0.01)   (0.10)
Net income per share - diluted   $ 0.25   $ 0.46
Statement of Comprehensive Income        
Total comprehensive income (loss)   $ 74   $ (113)
Statement of Cash Flows        
Deferred taxes       (3)
Other assets and liabilities       (127)
Net Cash Provided by (Used in) Operating Activities       163
Revision Adjustment        
Income Statement        
Prior period tax adjustments   (4)   5
Net income per share - diluted        
Deferred income tax adjustment   4   (7)
Statement of Cash Flows        
Increase (decrease) in Income taxes payable       (2)
Impact of tax adjustment to cash from operating activities       0
Foreign tax rate change [Member] | Revision Adjustment        
Net income per share - diluted        
Deferred income tax adjustment       $ (13)
Due to Error in prior year tax return [Member] | Revision Adjustment        
Net income per share - diluted        
Tax expense (benefit)   $ 4