General (Details) - USD ($) $ in Millions	3 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	Dec. 01, 2018	Nov. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings	$ 25,033			$ 25,066
Prepaid expenses and other	603			436
Total current assets	2,101			2,225
Customer deposits	4,755			4,395
Total current liabilities	9,642			$ 9,204
Revenues	4,673	$ 4,232
Operating costs and expenses	4,287	3,813
Operating income	386	419
Net Income	336	391
Prepaid expenses and other	(154)	98
Customer deposits	358	271
Net cash provided by operating activities	1,116	1,064
Cruise onboard and other
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	1,446	1,071
Cruise
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Onboard and other	467	$ 140
Prior to adoption of ASC 606 | ASC 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Prepaid expenses and other	461
Total current assets	1,959
Customer deposits	4,613
Total current liabilities	9,501
Revenues	4,350
Operating costs and expenses	3,964
Operating income	386
Net Income	336
Prepaid expenses and other	(12)
Customer deposits	216
Net cash provided by operating activities	1,116
Prior to adoption of ASC 606 | ASC 606 | Cruise onboard and other
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	1,123
Prior to adoption of ASC 606 | ASC 606 | Cruise
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Onboard and other	145
Adjustments | ASC 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings			$ 24
Prepaid expenses and other	142
Total current assets	142
Customer deposits	142
Total current liabilities	142
Revenues	323
Operating costs and expenses	323
Operating income	0
Net Income	0
Prepaid expenses and other	(142)
Customer deposits	142
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	323
Adjustments | ASC 606 | Cruise
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Onboard and other	$ 323