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Supplemental Financial Information (Other Long-Term Liabilities) (Details) - USD ($)
$ in Millions
Jul. 31, 2022
Oct. 31, 2021
Other Liabilities, Noncurrent [Abstract]    
Other Accrued Liabilities, Noncurrent $ 1,223 $ 1,453
Total other long-term liabilities 4,530 4,860
Unrecognized tax benefits and accrued interest $ 3,307 $ 3,407