Financial Instruments and Fair Value Disclosures - (Mortgage Servicing Rights Unobservable Inputs) (Details) - Financial Services - Level 3	Feb. 28, 2022	Nov. 30, 2021
Mortgage prepayment rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for valuation of mortgage servicing rights	0.11	0.13
Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for valuation of mortgage servicing rights	0.13	0.13
Delinquency rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for valuation of mortgage servicing rights	0.05	0.04