Segment Information - Segment Reporting (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2024	Aug. 31, 2023
Segment Reporting Information [Line Items]
Revenues	$ 7,896	$ 6,854	$ 19,083	$ 16,197
Operating expenses	4,303	3,921	11,805	10,688
Selling and administrative	763	713	2,366	2,162
Depreciation and amortization	651	596	1,898	1,774
Operating Income	2,178	1,624	3,013	1,572
NAA
Segment Reporting Information [Line Items]
Revenues	5,322	4,566	12,880	11,000
Operating expenses	3,000	2,661	7,983	7,132
Selling and administrative	455	420	1,421	1,295
Depreciation and amortization	424	377	1,237	1,115
Operating Income	1,442	1,107	2,239	1,458
Europe
Segment Reporting Information [Line Items]
Revenues	2,331	2,060	5,797	4,819
Operating expenses	1,166	1,124	3,552	3,303
Selling and administrative	223	199	687	634
Depreciation and amortization	173	168	501	506
Operating Income	770	569	1,058	376
Cruise Support
Segment Reporting Information [Line Items]
Revenues	62	56	184	162
Operating expenses	37	30	112	85
Selling and administrative	81	87	243	211
Depreciation and amortization	48	47	142	137
Operating Income	(104)	(109)	(313)	(271)
Tour and Other
Segment Reporting Information [Line Items]
Revenues	181	172	222	216
Operating expenses	100	105	159	169
Selling and administrative	5	7	15	21
Depreciation and amortization	6	3	18	17
Operating Income	$ 70	$ 56	$ 30	$ 9