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STOCKHOLDERS' EQUITY (Changes in Accumulated Other Comprehensive Loss) (Details) - USD ($)
$ in Millions
 12 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Oct. 31, 2018
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Accumulated other comprehensive loss $ (599) $ (578)  
Beginning Balance 3,004 2,433 $ 2,310
Other comprehensive loss (21) (90) (31)
Ending Balance 3,297 3,004 2,433
AOCI Including Portion Attributable to Noncontrolling Interest [Member]      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning Balance (578) (488)  
Other comprehensive income (loss) before reclassifications (102) (156)  
Amounts reclassified out of accumulated other comprehensive income 60 33  
Tax (expense) benefit 21 33  
Other comprehensive loss (21) (90)  
Ending Balance (599) (578) (488)
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member]      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning Balance (43) (60)  
Other comprehensive income (loss) before reclassifications 33 17  
Amounts reclassified out of accumulated other comprehensive income 0 0  
Tax (expense) benefit 0 0  
Other comprehensive loss 33 17  
Ending Balance (10) (43) (60)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Including Portion Attributable to Noncontrolling Interest [Member]      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning Balance (536) (445)  
Other comprehensive income (loss) before reclassifications (155) (168)  
Amounts reclassified out of accumulated other comprehensive income 68 49  
Tax (expense) benefit 23 28  
Other comprehensive loss (64) (91)  
Ending Balance (600) (536) (445)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Including Portion Attributable to Noncontrolling Interest [Member]      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning Balance 4 19  
Other comprehensive income (loss) before reclassifications 0 0  
Amounts reclassified out of accumulated other comprehensive income (12) (19)  
Tax (expense) benefit 3 4  
Other comprehensive loss (9) (15)  
Ending Balance (5) 4 19
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member]      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning Balance (3) (2)  
Other comprehensive income (loss) before reclassifications 20 (5)  
Amounts reclassified out of accumulated other comprehensive income 4 3  
Tax (expense) benefit (5) 1  
Other comprehensive loss 19 (1)  
Ending Balance $ 16 $ (3) $ (2)