Debt Instrument, Number of Loans Added

No definition available.

Name:	ccl_DebtInstrumentNumberofLoansAdded
Namespace Prefix:	ccl_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow from borrowing by issuing commercial paper.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow due to repaying amounts borrowed by issuing commercial paper.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Carrying value as of the balance sheet date of the portion of long-term, uncollateralized debt obligations due within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(1))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Balance Type:
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- Details

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- Details

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- Details

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Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ccl_ExportCreditFacilityDue2035Member
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- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
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- Details

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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=ccl_RevolvingCreditFacilityDue2024ComponentThreeMember
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- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_CommercialPaperMember
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Unsecured Debt (Details) € in Millions	1 Months Ended				9 Months Ended
Unsecured Debt (Details) € in Millions	Aug. 31, 2019 EUR (€)	Mar. 31, 2019 USD ($) loan	Feb. 28, 2019 USD ($)	Dec. 31, 2018 USD ($)	Aug. 31, 2019 USD ($)	Aug. 31, 2018 USD ($)	Aug. 31, 2019 USD ($)
Euro-denominated bank loan \| Export credit facility due 2031
Debt Instrument [Line Items]
Proceeds from long-term debt			$ 587,000,000
Euro-denominated bank loan \| Floating rate bank loan due March 2023
Debt Instrument [Line Items]
Proceeds from long-term debt		$ 283,000,000
Number of loans \| loan		2
Export credit facility \| Export credit facility due 2031
Debt Instrument [Line Items]
Proceeds from long-term debt				$ 852,000,000
Export credit facility \| Export credit facility due 2035
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 899,000,000
Export credit facility \| Revolving credit facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity							$ 3,000,000,000.0
Extension term (in years)	5 years
Export credit facility \| Revolving credit facility \| Revolving credit facility due 2024, component one
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity							1,700,000,000
Export credit facility \| Revolving credit facility \| Revolving credit facility due 2024, component two
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity \| €	€ 1,000
Export credit facility \| Revolving credit facility \| Revolving credit facility due 2024, component three
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity \| €	€ 150
Commercial paper
Debt Instrument [Line Items]
Current unsecured debt							$ 238,000,000
Proceeds from short term debt					$ 0	$ 2,000,000
Repayments of short term debt					$ 0	$ 2,000,000