Segment Information - Adjusted Operating Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2025	Nov. 30, 2024	Nov. 30, 2023
Revenues [Abstract]
Revenues	$ 26,622	$ 25,021	$ 21,593
Cruise and tour operating expenses:
Commissions, transportation and other	3,331	3,232	2,761
Onboard and other	2,816	2,678	2,375
Payroll and related	2,589	2,464	2,373
Fuel	1,808	2,007	2,047
Food	1,499	1,457	1,335
Total Cruise and tour operating expenses	16,057	15,677	14,405
Adjusted selling and administrative expense	3,378	3,231	2,931
Depreciation and amortization expense	2,790	2,557	2,370
Operating Income	4,396	3,556	1,887
Gains on ship sales and impairments	110	39	88
Restructuring expenses	(13)	(21)	(19)
Other	(10)
Interest income	51	93	233
Interest expense, net of capitalized interest	(1,349)	(1,755)	(2,066)
Debt extinguishment and modification costs	(409)	(79)	(111)
Other income (expense), net	(4)	83	(75)
Income (Loss) Before Income Taxes	2,772	1,915	(62)
Capital Expenditures	3,611	4,626	3,284
Total Assets	51,687	49,057	49,120
North America
Revenues [Abstract]
Revenues	17,604	16,802	14,588
Cruise and tour operating expenses:
Commissions, transportation and other	2,104	2,072	1,773
Onboard and other	2,215	2,151	1,919
Payroll and related	1,438	1,419	1,350
Fuel	1,207	1,371	1,397
Food	1,065	1,051	955
Adjusted other operating	2,561	2,531	2,233
Total Cruise and tour operating expenses	10,591	10,594	9,628
Adjusted selling and administrative expense	1,962	1,938	1,753
Depreciation and amortization expense	1,818	1,664	1,495
Operating Income	3,233	2,605	1,712
Capital Expenditures	2,367	3,943	1,932
Total Assets	31,400	30,892	28,547
Europe
Revenues [Abstract]
Revenues	8,467	7,710	6,535
Cruise and tour operating expenses:
Commissions, transportation and other	1,326	1,245	1,059
Onboard and other	549	479	411
Payroll and related	1,001	924	923
Fuel	600	634	648
Food	432	406	380
Adjusted other operating	1,171	1,047	1,024
Total Cruise and tour operating expenses	5,078	4,734	4,445
Adjusted selling and administrative expense	1,034	953	865
Depreciation and amortization expense	746	676	668
Operating Income	1,610	1,347	556
Capital Expenditures	557	270	1,161
Total Assets	16,030	15,042	16,524
Cruise Support
Revenues [Abstract]
Revenues	309	255	206
Cruise and tour operating expenses:
Commissions, transportation and other	(99)	(86)	(71)
Onboard and other	52	48	45
Payroll and related	149	121	99
Fuel	2	2	2
Food	2	1	0
Adjusted other operating	105	69	52
Total Cruise and tour operating expenses	211	156	127
Adjusted selling and administrative expense	365	320	286
Depreciation and amortization expense	200	193	184
Operating Income	(468)	(414)	(392)
Capital Expenditures	647	382	179
Total Assets	3,836	2,732	3,667
Tour and Other
Revenues [Abstract]
Revenues	241	255	265
Cruise and tour operating expenses:
Commissions, transportation and other	0	0	0
Onboard and other	0	0	0
Payroll and related	0	0	0
Fuel	0	0	0
Food	0	0	0
Adjusted other operating	177	193	205
Total Cruise and tour operating expenses	177	193	205
Adjusted selling and administrative expense	17	19	27
Depreciation and amortization expense	26	24	23
Operating Income	22	18	11
Capital Expenditures	41	32	12
Total Assets	$ 421	$ 390	$ 382