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STOCKHOLDER'S EQUITY - Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Apr. 30, 2024
Apr. 30, 2023
Apr. 30, 2024
Apr. 30, 2023
Beginning Balance $ (316)   $ (327)  
Other comprehensive income (loss) before reclassifications (14)   6  
Amounts reclassified out of accumulated other comprehensive income (loss) (6)   (20)  
Tax expense (benefit) 1   (4)  
Other comprehensive income (loss) (21) $ (2) (10) $ 65
Ending Balance (337)   (337)  
Foreign Currency Translation        
Beginning Balance (280)   (301)  
Other comprehensive income (loss) before reclassifications (24)   5  
Amounts reclassified out of accumulated other comprehensive income (loss) 0   (8)  
Tax expense (benefit) 0   0  
Other comprehensive income (loss) (24)   (3)  
Ending Balance (304)   (304)  
Prior Service Credits        
Beginning Balance 122   122  
Other comprehensive income (loss) before reclassifications 0   0  
Amounts reclassified out of accumulated other comprehensive income (loss) 0   0  
Tax expense (benefit) 0   0  
Other comprehensive income (loss) 0   0  
Ending Balance 122   122  
Actuarial Losses        
Beginning Balance (166)   (165)  
Other comprehensive income (loss) before reclassifications 1   2  
Amounts reclassified out of accumulated other comprehensive income (loss) (5)   (8)  
Tax expense (benefit) (1)   (2)  
Other comprehensive income (loss) (3)   (4)  
Ending Balance (169)   (169)  
Unrealized Gains (Losses) on Derivatives        
Beginning Balance 8   17  
Other comprehensive income (loss) before reclassifications 9   (1)  
Amounts reclassified out of accumulated other comprehensive income (loss) (1)   (4)  
Tax expense (benefit) 2   (2)  
Other comprehensive income (loss) 6   (3)  
Ending Balance $ 14   $ 14