Segment Information - Segment Reporting (Details) $ in Millions	3 Months Ended				9 Months Ended
	Aug. 31, 2020 USD ($)	May 31, 2020 USD ($)	Feb. 29, 2020 USD ($)	Aug. 31, 2019 USD ($)	Aug. 31, 2020 USD ($) segment	Aug. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment					4
Revenues	$ 31			$ 6,533	$ 5,561	$ 16,043
Operating costs and expenses	1,549			3,532	7,556	9,833
Selling and administrative	265			563	1,435	1,813
Depreciation and amortization	551			548	1,698	1,607
Operating Income (Loss)	(2,333)			1,890	(7,223)	2,791
Goodwill impairment	0			0	2,096	0
NAA
Segment Reporting Information [Line Items]
Revenues	15			4,256	3,612	10,495
Operating costs and expenses	1,292			2,327	5,197	6,370
Selling and administrative	144			339	841	1,034
Depreciation and amortization	348			345	1,081	1,012
Operating Income (Loss)	(1,770)			1,246	(4,827)	2,079
Goodwill impairment			$ 731		1,319
EA
Segment Reporting Information [Line Items]
Revenues	(4)			2,035	1,785	5,122
Operating costs and expenses	225			1,058	2,314	3,166
Selling and administrative	71			150	404	540
Depreciation and amortization	165			165	499	483
Operating Income (Loss)	(465)			662	(2,208)	933
Goodwill impairment		$ 1,300			777
Cruise Support
Segment Reporting Information [Line Items]
Revenues	1			42	67	128
Operating costs and expenses	12			39	(22)	99
Selling and administrative	44			65	170	217
Depreciation and amortization	32			29	96	84
Operating Income (Loss)	(86)			(92)	(177)	(272)
Tour and Other
Segment Reporting Information [Line Items]
Revenues	20			200	96	299
Operating costs and expenses	20			109	67	198
Selling and administrative	5			9	19	21
Depreciation and amortization	6			9	22	28
Operating Income (Loss)	$ (11)			$ 74	$ (12)	$ 52