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STOCKHOLDERS' EQUITY - Changes in accumulated other comprehensive income (Details) - USD ($)
$ in Millions
 12 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2019
Beginning Balance $ (522) $ (514)  
Amounts Reclassified out of Accumulated Other Comprehensive Income 80 56  
Tax (expense) benefit (81) 3  
Other Comprehensive Income (Loss) 240 (8) $ (99)
Ending Balance (282) (522) (514)
Foreign Currency Translation      
Beginning Balance (194) (204)  
Other Comprehensive Income (Loss), before Reclassifications   11  
Amounts Reclassified Amounts Reclassified out of Accumulated Other Comprehensive Income 0 0  
Tax (expense) benefit (2) (1) 10
Other Comprehensive Income (Loss) 9 10  
Ending Balance (185) (194) (204)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Reclassification Adjustment, before Tax [Abstract]      
Beginning Balance 125 131  
Other Comprehensive (Income) Loss, before Reclassifications 0 0  
Amortization of prior service benefit (1) 7  
Tax (expense) benefit 0 1 2
Other Comprehensive (Income) Loss (1) (6) (6)
Ending Balance 124 125 131
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Reclassification Adjustment, before Tax [Abstract]      
Beginning Balance (442) (437)  
Other Comprehensive Income (Loss), before Reclassifications 228 (66)  
Amounts reclassified out of accumulated other comprehensive income 64 61  
Tax (expense) benefit (74) 0  
Other comprehensive income (loss) 218 (5) (93)
Ending Balance (224) (442) (437)
Unrealized Gain (Loss) on Foreign Currency Derivatives, Net, before Tax [Abstract]      
Beginning Balance   (4)  
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax 3 (11)  
Ending Balance     $ (4)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax 17 2  
Amounts reclassified into earnings related to derivative instruments, tax expense (benefit) (5) 3  
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent 14 (7)  
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax 11    
Other Comprehensive Income (Loss), before Reclassifications, before Tax 241 (67)  
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax $ 2 $ (12)