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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Nov. 30, 2019
Nov. 30, 2018
Nov. 30, 2017
Feb. 28, 2020
Dec. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Fees, taxes, and charges $ 659 $ 615 $ 579    
Contract assets 154       $ 151
Selling expenses 728 673 645    
Retained earnings 26,653 25,066      
Assets 45,058 42,401 $ 40,778    
Cruise Support          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Customer deposits $ 4,900 $ 4,700      
ASC 606 | Forecast | Minimum          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Assets       $ 1,400  
Liabilities       1,400  
ASC 606 | Forecast | Maximum          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Assets       1,600  
ASC 606 | Adjustments          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Retained earnings         $ 24
ASC 842 | Forecast | Maximum          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Liabilities       $ 1,600