Segment Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Aug. 31, 2018 USD ($)	Aug. 31, 2017 USD ($)	Aug. 31, 2018 USD ($) segment	Aug. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			4
Revenues	$ 5,836	$ 5,515	$ 14,425	$ 13,251
Operating costs and expenses	2,958	3,013	8,348	7,884
Selling and administrative	573	547	1,794	1,649
Depreciation and amortization	511	473	1,510	1,368
Operating Income	1,794	1,393	2,772	2,261
Goodwill and trademark impairment	0	89	0	89
Operating Segments | NAA
Segment Reporting Information [Line Items]
Revenues	3,805	3,565	9,325	8,744
Operating costs and expenses	1,981	1,920	5,385	5,073
Selling and administrative	333	320	1,039	982
Depreciation and amortization	323	303	940	893
Operating Income	1,168	933	1,961	1,708
Operating Segments | EA
Segment Reporting Information [Line Items]
Revenues	1,832	1,767	4,784	4,206
Operating costs and expenses	891	1,007	2,783	2,661
Selling and administrative	172	158	551	475
Depreciation and amortization	150	147	466	411
Operating Income	621	455	984	658
Operating Segments | Cruise Support
Segment Reporting Information [Line Items]
Revenues	31	28	94	101
Operating costs and expenses	(4)	0	40	18
Selling and administrative	64	65	183	180
Depreciation and amortization	28	13	76	36
Operating Income	(57)	(50)	(204)	(133)
Operating Segments | Tour and Other
Segment Reporting Information [Line Items]
Revenues	167	155	222	200
Operating costs and expenses	90	86	140	132
Selling and administrative	4	4	22	12
Depreciation and amortization	10	10	29	28
Operating Income	$ 62	$ 55	$ 31	$ 28