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Compensation Plans - Additional Information (Details)
shares in Millions, $ in Millions
12 Months Ended
Nov. 30, 2019
USD ($)
plan
shares
Nov. 30, 2018
USD ($)
Nov. 30, 2017
USD ($)
Mar. 31, 2017
Mar. 31, 2015
Employee Benefits Disclosure [Line Items]          
Shares available for future grant (in shares) | shares 11.8        
Award vesting period (in years) 3 years        
Unrecognized compensation cost $ 57        
Weighted-average period over which cost is expected to be recognized (in years) 1 year 4 months 24 days        
Pension expense $ 34 $ 36 $ 53    
Defined contribution plans, total expense $ 41 $ 39 $ 37    
Multiemployer Defined Benefit Pension Plan          
Employee Benefits Disclosure [Line Items]          
Number of multiemployer plans | plan 2        
Multiemployer Defined Benefit Pension Plan | MNOPF          
Employee Benefits Disclosure [Line Items]          
Funded (percentage)         98.00%
Employer contribution of total contributions made by all plan participants (percentage) 5.00% 5.00% 5.00%    
Multiemployer Defined Benefit Pension Plan | MNRPF          
Employee Benefits Disclosure [Line Items]          
Funded (percentage)       88.00%  
Employer contribution of total contributions made by all plan participants (percentage) 5.00% 5.00% 5.00%    
Pension Plan          
Employee Benefits Disclosure [Line Items]          
Weighted-average discount rates (percentage) 2.40% 3.40%