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Fair Value (Tables)
 12 Months Ended
Oct. 31, 2021
Fair Value Disclosures [Abstract]  
Assets and Liabilities Measured at Fair Value on a Recurring Basis
The following table presents the Company's assets and liabilities that are measured at fair value on a recurring basis:
 As of October 31, 2021As of October 31, 2020
 Fair Value
Measured Using		 Fair Value
Measured Using		 
 Level 1Level 2Level 3TotalLevel 1Level 2Level 3Total
 In millions
Assets        
Cash Equivalents and Investments:        
Time deposits$— $806 $— $806 $— $939 $— $939 
Money market funds1,495 — — 1,495 1,167 — — 1,167 
Equity Securities57 — 129 186 — — — — 
Foreign bonds— 122 — 122 — 125 — 125 
Other debt securities— — 42 42 — — 21 21 
Derivative Instruments:        
Interest rate contracts— 95 — 95 — 220 — 220 
Foreign exchange contracts— 308 — 308 — 290 — 290 
Other derivatives— 4 — 4 — — — — 
Total assets$1,552 $1,335 $171 $3,058 $1,167 $1,574 $21 $2,762 
Liabilities        
Derivative Instruments:        
Interest rate contracts$— $— $— $— $— $2 $— $2 
Foreign exchange contracts— 127 — 127 — 189 — 189 
Other derivatives— — — — — 3 — 3 
Total liabilities$— $127 $— $127 $— $194 $— $194