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Warranty, Guarantees, Commitments and Contingencies (Tables)
12 Months Ended
Oct. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Changes in the warranty reserves
Changes in the warranty reserves during each fiscal year were as follows: 

202120202019
 (In millions)
Beginning balance$201 $196 $208 
Provisions for warranty223 165 148 
Changes in reserves related to preexisting warranty
Consumption of reserves(191)(162)(167)
Ending balance$242 $201 $196