Pension and Employee Benefits Plans - Summary of Weighted-Average Rates Used in Determining the Benefit Obligations (Details) - Pension Plan	Nov. 30, 2019	Nov. 30, 2018
Minimum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	0.20%	0.30%
Expected long-term rate of return on plan assets	1.50%	1.50%
Expected rate of future compensation growth	1.80%	1.80%
Maximum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	7.40%	8.10%
Expected long-term rate of return on plan assets	7.50%	7.50%
Expected rate of future compensation growth	10.00%	10.00%