Segment Information - Segment Reporting (Details) $ in Millions	3 Months Ended		9 Months Ended
	Aug. 31, 2019 USD ($)	Aug. 31, 2018 USD ($)	Aug. 31, 2019 USD ($) segment	Aug. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			4
Revenues	$ 6,533	$ 5,836	$ 16,043	$ 14,425
Operating costs and expenses	3,532	2,958	9,833	8,348
Selling and administrative	563	573	1,813	1,794
Depreciation and amortization	548	511	1,607	1,510
Operating Income	1,890	1,794	2,791	2,772
Operating Segments | NAA
Segment Reporting Information [Line Items]
Revenues	4,256	3,805	10,495	9,325
Operating costs and expenses	2,327	1,981	6,370	5,385
Selling and administrative	339	333	1,034	1,039
Depreciation and amortization	345	323	1,012	940
Operating Income	1,246	1,168	2,079	1,961
Operating Segments | EA
Segment Reporting Information [Line Items]
Revenues	2,035	1,832	5,122	4,784
Operating costs and expenses	1,058	891	3,166	2,783
Selling and administrative	150	172	540	551
Depreciation and amortization	165	150	483	466
Operating Income	662	621	933	984
Operating Segments | Cruise Support
Segment Reporting Information [Line Items]
Revenues	42	31	128	94
Operating costs and expenses	39	(4)	99	40
Selling and administrative	65	64	217	183
Depreciation and amortization	29	28	84	76
Operating Income	(92)	(57)	(272)	(204)
Operating Segments | Tour and Other
Segment Reporting Information [Line Items]
Revenues	200	167	299	222
Operating costs and expenses	109	90	198	140
Selling and administrative	9	4	21	22
Depreciation and amortization	9	10	28	29
Operating Income	$ 74	$ 62	$ 52	$ 31