Benefit Plans - Assumptions Used to Determine Actuarial Present Value of Projected Benefit Obligation and Net Periodic Pension Benefit Cost (Details) - United States	12 Months Ended
	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2017
Defined Benefit Plan Disclosure [Line Items]
Discount rate used to determine benefit obligation	2.90%	4.30%	3.60%
Weighted average assumptions used to determine net pension cost:
Discount rate	4.30%	3.60%	3.90%
Expected long-term rate of return on plan assets	6.25%	6.25%	6.25%