Cover Page - shares	6 Months Ended
	May 31, 2021	Jun. 18, 2021
Entity Information [Line Items]
Document Type	10-Q
Entity Central Index Key	0000815097
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--11-30
Document Quarterly Report	true
Document Period End Date	May 31, 2021
Document Transition Report	false
Entity File Number	001-9610
Entity Registrant Name	Carnival Corporation
Entity Incorporation, State or Country Code	R1
Entity Tax Identification Number	59-1562976
Entity Address, Address Line One	3655 N.W. 87th Avenue
Entity Address, City or Town	Miami,
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33178-2428
City Area Code	(305)
Local Phone Number	599-2600
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		973,824,517
Common Stock
Entity Information [Line Items]
Title of 12(b) Security	Common Stock ($0.01 par value)
Trading Symbol	CCL
Security Exchange Name	NYSE
Carnival PLC
Entity Information [Line Items]
Entity Central Index Key	0001125259
Current Fiscal Year End Date	--11-30
Entity File Number	001-15136
Entity Registrant Name	Carnival plc
Entity Incorporation, State or Country Code	X0
Entity Tax Identification Number	98-0357772
Entity Address, Address Line One	Carnival House, 100 Harbour Parade
Entity Address, City or Town	Southampton
Entity Address, Country	GB
Entity Address, Postal Zip Code	SO15 1ST
City Area Code	011
Local Phone Number	44 23 8065 5000
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		184,132,549
Carnival PLC | Ordinary Shares
Entity Information [Line Items]
Title of 12(b) Security	Ordinary Shares ($1.66 par value)
Trading Symbol	CUK
Security Exchange Name	NYSE
Carnival PLC | 1.875% Senior Notes Due 2022
Entity Information [Line Items]
Title of 12(b) Security	1.875% Senior Notes due 2022
Trading Symbol	CUK22
Security Exchange Name	NYSE
Carnival PLC | 1.000% Senior Notes Due 2029
Entity Information [Line Items]
Title of 12(b) Security	1.000% Senior Notes due 2029
Trading Symbol	CUK29
Security Exchange Name	NYSE