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Commitments (Tables)
12 Months Ended
Oct. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Future unconditional purchase obligations
As of October 31, 2021, future unconditional purchase obligations were as follows:
Fiscal YearIn millions
2022$458 
2023175 
202453 
202550 
2026
Thereafter23 
Total$768