Segment Information - Segment Reporting (Details) $ in Millions	3 Months Ended
	Feb. 29, 2020 USD ($) segment	Feb. 28, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment	4
Revenues	$ 4,789	$ 4,673
Operating costs and expenses	3,523	3,142
Selling and administrative	678	629
Depreciation and amortization	570	516
Operating Income (Loss)	(713)	386
Impairment charges	(731)	0
NAA
Segment Reporting Information [Line Items]
Impairment charges	(300)
EA
Segment Reporting Information [Line Items]
Impairment charges	(431)
Operating Segments | NAA
Segment Reporting Information [Line Items]
Revenues	3,140	3,077
Operating costs and expenses	2,274	2,010
Selling and administrative	400	353
Depreciation and amortization	364	328
Operating Income (Loss)	(197)	386
Impairment charges	300
Operating Segments | EA
Segment Reporting Information [Line Items]
Revenues	1,552	1,526
Operating costs and expenses	1,317	1,075
Selling and administrative	207	205
Depreciation and amortization	166	152
Operating Income (Loss)	(569)	93
Impairment charges		431
Operating Segments | Cruise Support
Segment Reporting Information [Line Items]
Revenues	44	42
Operating costs and expenses	(87)	27
Selling and administrative	65	65
Depreciation and amortization	32	28
Operating Income (Loss)	35	(78)
Operating Segments | Tour and Other
Segment Reporting Information [Line Items]
Revenues	52	29
Operating costs and expenses	19	29
Selling and administrative	7	6
Depreciation and amortization	8	9
Operating Income (Loss)	$ 18	$ (15)