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Compensation Plans and Post-Employment Benefits - Additional Information (Details)
shares in Millions, $ in Millions
12 Months Ended
Nov. 30, 2020
USD ($)
plan
section
shares
Nov. 30, 2019
USD ($)
Nov. 30, 2018
USD ($)
Mar. 31, 2019
Mar. 31, 2018
Defined Benefit Plan Disclosure [Line Items]          
Shares available for future grant (in shares) | shares 11.1        
Award vesting period (in years) 3 years        
Unrecognized compensation cost $ 129        
Weighted-average period over which cost is expected to be recognized (in years) 1 year 4 months 24 days        
Defined contribution plans, total expense $ 24 $ 41 $ 39    
Pension Plan          
Defined Benefit Plan Disclosure [Line Items]          
Accumulated benefit obligation $ 584 531      
Number of multiemployer plans | plan 2        
Number of multiemployer plan sections | section 2        
Multiemployer plans expense $ 2 $ 6 $ 8    
Pension Plan | UK Plan          
Defined Benefit Plan Disclosure [Line Items]          
Anticipated contributions $ 6        
Pension Plan | UK Plan | Minimum          
Defined Benefit Plan Disclosure [Line Items]          
Fixed interest bonds rate (percent) 1.00%        
Pension Plan | UK Plan | Maximum          
Defined Benefit Plan Disclosure [Line Items]          
Fixed interest bonds rate (percent) 1.80%        
Pension Plan | All Other Plans          
Defined Benefit Plan Disclosure [Line Items]          
Anticipated contributions $ 27        
Pension Plan | MNOPF          
Defined Benefit Plan Disclosure [Line Items]          
Funded (percentage)         98.00%
Employer contribution of total contributions made by all plan participants (percentage) 5.00% 5.00% 5.00%    
Pension Plan | MNRPF          
Defined Benefit Plan Disclosure [Line Items]          
Funded (percentage)       84.00%  
Employer contribution of total contributions made by all plan participants (percentage) 5.00% 5.00% 5.00%