General (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2019	Aug. 31, 2018	Dec. 01, 2018	Nov. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings	$ 26,576		$ 26,576			$ 25,066
Prepaid expenses and other	635		635			436
Total current assets	2,712		2,712			2,225
Customer deposits	4,674		4,674			4,395
Total current liabilities	8,932		8,932			$ 9,204
Revenues	6,533	$ 5,836	16,043	$ 14,425
Operating costs and expenses	4,643	4,042	13,252	11,653
Operating Income	1,890	1,794	2,791	2,772
Net Income	1,780	1,707	2,567	2,659
Prepaid expenses and other			(220)	76
Customer deposits			409	549
Net cash provided by operating activities			4,414	4,436
Cruise onboard and other
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	1,855	1,316	4,811	3,509
Cruise
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Onboard and other	668	$ 207	1,620	$ 485
Prior to adoption of ASC 606 | ASC 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Prepaid expenses and other	488		488
Total current assets	2,565		2,565
Customer deposits	4,527		4,527
Total current liabilities	8,784		8,784
Revenues	6,084		14,929
Operating costs and expenses	4,194		12,137
Operating Income	1,890		2,791
Net Income	1,780		2,567
Prepaid expenses and other			(73)
Customer deposits			262
Net cash provided by operating activities			4,414
Prior to adoption of ASC 606 | ASC 606 | Cruise onboard and other
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenues	1,407		3,696
Prior to adoption of ASC 606 | ASC 606 | Cruise
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Onboard and other	219		506
Adjustments | ASC 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings					$ 24
Prepaid expenses and other	147		147
Total current assets	147		147
Customer deposits	147		147
Total current liabilities	147		147
Revenues	449		1,115
Operating costs and expenses	449		1,115
Operating Income	0		0
Net Income	0		0
Prepaid expenses and other			(147)
Customer deposits			147
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	449		1,115
Adjustments | ASC 606 | Cruise
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Onboard and other	$ 449		$ 1,115