Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2022	Jan. 01, 2024
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restricted cash		$ 11
Lease term (in years)	12 months
Emissions trading scheme, phase-in period				3 years
Cost of prepaid air and other transportation costs	$ 219
Customer deposits	6,800	6,400
Unredeemable future cruise credits	25	134
Refundable future cruise credits		111
Revenues recognized related to customer deposits	5,500	4,100
Contract assets	336	294
Selling expenses	$ 925	$ 851	$ 744
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease renewal term (in years)	1 year
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease renewal term (in years)	10 years
Ships
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Average useful lives of property and equipment (in years)	30 years
Residual value of original cost (percent)	15.00%