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STOCKHOLDERS' EQUITY - Reclassifications out of accumulated comprehensive income (Details) - USD ($)
$ in Millions
 3 Months Ended
Jan. 31, 2025
Jan. 31, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Amounts reclassified out of accumulated other comprehensive income (loss) $ (3)  
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Tax 0 $ 0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax 0 8
Unrealized gain (loss) on derivatives $ 3 $ 3
Gain (Loss) Reclassified from AOCI into cost of sales [Extensible Enumeration] Cost of revenue Cost of revenue
Amounts reclassified into earnings related to derivative instruments, tax $ (1) $ (1)
Unrealized gain (loss) on derivatives after reclassification and after Tax 2 2
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax 0 (3)
Actuarial net loss and prior service benefit reclassified, before tax 0 3
Tax on actuarial net loss and prior service benefit reclassified 0 (1)
Actuarial net loss and prior service benefit reclassified, net of tax 0 2
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 2 12
Other Income (Expense)    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Amounts reclassified out of accumulated other comprehensive income (loss) 0 8
Foreign Currency Gain (Loss)    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Amounts reclassified out of accumulated other comprehensive income (loss) $ 0 $ 8