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Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risk - Foreign Currency Exchange Risks (Details)
12 Months Ended
Nov. 30, 2020
USD ($)
Nov. 30, 2019
USD ($)
Nov. 30, 2018
USD ($)
Fair Value, Measurement Inputs, Disclosure [Line Items]      
Foreign currency translation adjustment losses $ (578,000,000) $ 86,000,000 $ 199,000,000
Foreign currency contract commitments $ 6,900,000,000    
Foreign currency zero cost collars | Mardi Gras | Cash flow hedging      
Fair Value, Measurement Inputs, Disclosure [Line Items]      
Weighted-Average Floor Rate 1.12    
Weighted- Average Ceiling Rate 1.28    
Euro-denominated      
Fair Value, Measurement Inputs, Disclosure [Line Items]      
Debt $ 9,000,000,000.0    
Sterling-denominated      
Fair Value, Measurement Inputs, Disclosure [Line Items]      
Debt 881,000,000    
Foreign currency translation adjustment losses $ 27,000,000