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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, 2019
USD ($)
Nov. 30, 2018
USD ($)
Nov. 30, 2017
USD ($)
Fair Value, Measurement Inputs, Disclosure [Line Items]      
Foreign currency translation adjustment losses $ 86,000,000 $ 199,000,000 $ (590,000,000)
Foreign currency contract commitments $ 7,300,000,000    
Foreign-currency contracts | Enchanted Princess | Cash flow hedging      
Fair Value, Measurement Inputs, Disclosure [Line Items]      
Weighted-Average Floor Rate 1.04    
Weighted- Average Ceiling Rate 1.28    
Foreign-currency contracts | Mardi Gras | Cash flow hedging      
Fair Value, Measurement Inputs, Disclosure [Line Items]      
Weighted-Average Floor Rate 1.04    
Weighted- Average Ceiling Rate 1.28    
Euro-denominated      
Fair Value, Measurement Inputs, Disclosure [Line Items]      
Debt $ 7,500,000,000.0    
Sterling-denominated      
Fair Value, Measurement Inputs, Disclosure [Line Items]      
Debt 854,000,000    
Foreign currency translation adjustment losses $ 6,000,000