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Pension and Employee Benefits Plans - Summary of Weighted-Average Rates Used in Determining the Benefit Obligations (Details) - Pension Plan
Nov. 30, 2020
Nov. 30, 2019
Minimum    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 0.20% 0.20%
Expected long-term rate of return on plan assets 1.50% 1.50%
Expected rate of future compensation growth 1.75% 1.80%
Maximum    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 4.70% 7.40%
Expected long-term rate of return on plan assets 7.50% 7.50%
Expected rate of future compensation growth 8.50% 10.00%