General (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2019	May 31, 2018	Dec. 01, 2018	Nov. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings	$ 25,138		$ 25,138			$ 25,066
Prepaid expenses and other	727		727			436
Total current assets	2,835		2,835			2,225
Customer deposits	5,815		5,815			4,395
Total current liabilities	10,377		10,377			$ 9,204
Revenues	4,838	$ 4,357	9,511	$ 8,589
Operating costs and expenses	4,323	3,798	8,609	7,611
Operating income	515	559	902	978
Net Income	451	561	787	951
Prepaid expenses and other			(302)	59
Customer deposits			1,516	1,413
Net cash provided by operating activities			3,169	3,087
Cruise onboard and other
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	1,510	1,122	2,955	2,192
Cruise
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Onboard and other	485	$ 138	952	$ 278
Prior to adoption of ASC 606 | ASC 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Prepaid expenses and other	517		517
Total current assets	2,625		2,625
Customer deposits	5,606		5,606
Total current liabilities	10,167		10,167
Revenues	4,495		8,845
Operating costs and expenses	3,980		7,943
Operating income	515		902
Net Income	451		787
Prepaid expenses and other			(92)
Customer deposits			1,306
Net cash provided by operating activities			3,169
Prior to adoption of ASC 606 | ASC 606 | Cruise onboard and other
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	1,167		2,289
Prior to adoption of ASC 606 | ASC 606 | Cruise
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Onboard and other	142		286
Adjustments | ASC 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings					$ 24
Prepaid expenses and other	210		210
Total current assets	210		210
Customer deposits	210		210
Total current liabilities	210		210
Revenues	343		666
Operating costs and expenses	343		666
Operating income	0		0
Net Income	0		0
Prepaid expenses and other			(210)
Customer deposits			210
Net cash provided by operating activities			0
Adjustments | ASC 606 | Cruise onboard and other
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	343		666
Adjustments | ASC 606 | Cruise
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Onboard and other	$ 343		$ 666