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Guarantees, Indemnifications and Warranties - Changes in Aggregate Product Warranty Liabilities and Changes (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Changes in aggregated product warranty liabilities    
Balance at beginning balance $ 385 $ 400
Charges 203 238
Adjustments related to pre-existing warranties (27) (3)
Settlements made (234) (250)
Balance at end of year $ 327 $ 385