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Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risks - Foreign Currency Exchange Rate Risks (Details)
3 Months Ended 9 Months Ended
Aug. 31, 2020
USD ($)
Aug. 31, 2019
USD ($)
Aug. 31, 2020
USD ($)
Aug. 31, 2019
USD ($)
Fair Value, Measurement Inputs, Disclosure [Line Items]        
Change in foreign currency translation adjustment $ 519,000,000 $ (101,000,000) $ 567,000,000 $ (215,000,000)
Foreign currency contract commitments $ 8,400,000,000   $ 8,400,000,000  
Foreign currency zero cost collars | Mardi Gras | Cash flow hedging        
Fair Value, Measurement Inputs, Disclosure [Line Items]        
Weighted-Average Floor Rate 1.12   1.12  
Weighted- Average Ceiling Rate 1.28   1.28  
Sterling-denominated        
Fair Value, Measurement Inputs, Disclosure [Line Items]        
Debt instrument, face amount $ 883,000,000   $ 883,000,000  
Change in foreign currency translation adjustment 66,000,000   29,000,000  
Euro-denominated        
Fair Value, Measurement Inputs, Disclosure [Line Items]        
Debt instrument, face amount $ 7,000,000,000.0   $ 7,000,000,000.0