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Compensation Plans - Additional Information (Details)
shares in Millions, $ in Millions
12 Months Ended
Nov. 30, 2018
USD ($)
plan
shares
Nov. 30, 2017
USD ($)
Nov. 30, 2016
USD ($)
Mar. 31, 2017
Mar. 31, 2015
Employee Benefits Disclosure [Line Items]          
Shares available for future grant (in shares) | shares 13.5        
Award vesting period 3 years        
Unrecognized compensation cost $ 65        
Weighted-average period over which cost is expected to be recognized 1 year 5 months        
Pension expense $ 36 $ 53 $ 27    
Defined contribution plans, total expense $ 39 $ 37 $ 30    
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       84.00% 90.00%
Employer contribution as a percentage of total contributions made by all plan participants 5.00% 5.00% 5.00%    
Multiemployer Defined Benefit Pension Plan | MNRPF          
Employee Benefits Disclosure [Line Items]          
Employer contribution as a percentage of total contributions made by all plan participants 5.00% 5.00% 5.00%    
Pension Plan          
Employee Benefits Disclosure [Line Items]          
Weighted-average discount rates 3.40% 2.70%