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Commitments and Contingencies (Other Purchase Commitments) (Details) - Cloud and other services
$ in Millions
Oct. 31, 2020
USD ($)
Unrecorded Unconditional Purchase Obligation  
Remaining 2021 $ 0.0
2022 159.2
2023 227.2
2024 285.7
2025 345.3
2026 and thereafter 551.1
Total other purchase commitments $ 1,568.5