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Compensation Plans and Post-Employment Benefits - Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets (Details) - Pension Plan - USD ($)
$ in Millions
Nov. 30, 2020
Nov. 30, 2019
Defined Benefit Plan Disclosure [Line Items]    
Projected benefit obligation $ 280  
Accumulated benefit obligation 272 $ 247
Fair value of plan assets $ 17 $ 18