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Fair Value Measurements (Details)		6 Months Ended
Fair Value Measurements (Details)	Apr. 06, 2020 USD ($) interest_rate_swap_contract	Apr. 30, 2020	Oct. 31, 2019 USD ($)
Derivative [Line Items]
Derivative asset			$ 0
Derivative liability			$ 0
Interest Rate Swap
Derivative [Line Items]
Number of interest rate swap contracts held \| interest_rate_swap_contract	6
Interest rate swap contracts, notional amount	$ 1,500,000,000
Interest rate swap contracts, contract term (or less)	7 years	7 years