XML 63 R84.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
SUPPLEMENTAL CASH FLOW INFORMATION (Income Tax Payments) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Oct. 31, 2017
Oct. 31, 2019
Oct. 31, 2018
Oct. 31, 2017
Supplemental Cash Flow Elements [Abstract]        
Income Taxes Paid, Net   $ 103 $ 27 $ 121
Income taxes and penalties on gains related to IP rights $ 68     $ 68