v3.26.1
STOCKHOLDER'S EQUITY - Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Jul. 31, 2026
Jul. 31, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning Balance     $ 5,881  
Other comprehensive income (loss) before reclassifications $ (15) $ (2) (1) $ 74
Amounts reclassified out of accumulated other comprehensive gain (loss) (6) (2) (23) (9)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent (1) 2 0 4
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total (22) (2) (24) 69
Ending Balance 6,571   6,571  
Foreign currency translation        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning Balance (55) (57) (66) (136)
Other comprehensive income (loss) before reclassifications (13) (7) (4) 72
Amounts reclassified out of accumulated other comprehensive gain (loss) 0 0 0 0
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent (2) 0 0 0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total (15) (7) (4) 72
Ending Balance (70) (64) (70) (64)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning Balance (270) (315) (264) (317)
Other comprehensive income (loss) before reclassifications 0 0 (2) 0
Amounts reclassified out of accumulated other comprehensive gain (loss) (1) 0 (2) 2
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent 1 0 (2) 0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total 0 0 (6) 2
Ending Balance (270) (315) (270) (315)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning Balance 75 79 82 89
Other comprehensive income (loss) before reclassifications (2) 5 5 2
Amounts reclassified out of accumulated other comprehensive gain (loss) (5) (2) (21) (11)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent 0 2 2 4
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total (7) 5 (14) (5)
Ending Balance 68 84 68 84
AOCI Attributable to Parent        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning Balance (250) (293) (248) (364)
Ending Balance $ (272) $ (295) $ (272) $ (295)