Debt Instrument, Convertible, Minimum Threshold Carrying Amount of Equity Component

No definition available.

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- Definition

Debt Instrument, Convertible, Minimum Threshold Carrying Amount of Liquidity Component

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Debt Covenant, Required Debt To Capital Covenant, Percentage

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Debt Covenant, Required Interest Coverage Covenant, Ratio

+ References

No definition available.

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- Definition

Debt Instrument, Undrawn Export Credit Facilities

+ References

No definition available.

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- Definition

Debt Instrument, Value Of Vessels Subject To Negative Pledges

+ References

No definition available.

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- Definition

Payment For Debt Extinguishment Or Debt Prepayment Cost, Premium Paid

+ References

No definition available.

+ Details

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- Definition

Schedule Of Debt Outstanding [Line Items]

+ References

No definition available.

+ Details

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- Definition

Ships And Ship Improvements, Gross

+ References

No definition available.

+ Details

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- Definition

Vessels And Material Intellectual Property, Gross

+ References

No definition available.

+ Details

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- Definition

Vessels And Related Assets, Gross

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Reflects the difference between the fair value of payments made to legally extinguish a debt and its carrying value at that time. This item excludes the write-off of amounts previously capitalized as debt issuance costs.

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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.

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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Debt - Narrative (Details) $ in Millions, € in Billions, £ in Billions	3 Months Ended		9 Months Ended
	Aug. 31, 2025 USD ($)	Aug. 31, 2024 USD ($)	Aug. 31, 2025 USD ($)	Aug. 31, 2024 USD ($)	Sep. 30, 2025 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2025 EUR (€)	Jun. 30, 2025 GBP (£)
Schedule of Debt Outstanding [Line Items]
Debt extinguishment costs			$ 242	$ 41
Debt extinguishment and modification costs	$ (111)	$ (13)	(366)	$ (78)
Debt extinguishment cost, premium paid	45		241
Ships and ship improvements	39,700		39,700
Vessels and material intellectual property	22,700		22,700
Vessels and related assets	21,000		21,000
Debt instrument, convertible, liquidity component minimum threshold			1,500
Eurodollar
Schedule of Debt Outstanding [Line Items]
Debt instrument, convertible, equity component minimum threshold			$ 5,000
Debt instrument, debt covenant, period
Schedule of Debt Outstanding [Line Items]
Debt instrument, debt covenant, required debt to capital covenant (as a percent)			65.00%
Guarantor Subsidiaries
Schedule of Debt Outstanding [Line Items]
Debt extinguishment costs			$ 9,600
New Revolving Facility
Schedule of Debt Outstanding [Line Items]
Line of credit facility, maximum borrowing capacity						$ 1,000
New Revolving Facility \| August 31, 2025 testing date
Schedule of Debt Outstanding [Line Items]
Debt instrument, debt covenant, required interest coverage covenant, ratio			2.5
New Revolving Facility \| February 28, 2026 testing date
Schedule of Debt Outstanding [Line Items]
Debt instrument, debt covenant, required interest coverage covenant, ratio			3.0
Revolving facility
Schedule of Debt Outstanding [Line Items]
Available for borrowing	4,500		$ 4,500
Carnival Holdings (Bermuda) II Limited \| New Revolving Facility
Schedule of Debt Outstanding [Line Items]
Line of credit facility, maximum borrowing capacity						4,500
Carnival Holdings (Bermuda) II Limited \| Multi-Currency Revolving Facility
Schedule of Debt Outstanding [Line Items]
Line of credit facility, maximum borrowing capacity						$ 1,900	€ 0.9	£ 0.1
Export Credit Facility \| Line of Credit \| Sun Princess Limited
Schedule of Debt Outstanding [Line Items]
Debt instrument, face amount	1,100		1,100
Export Credit Facility \| Line of Credit \| Sun Princess II Limited
Schedule of Debt Outstanding [Line Items]
Debt instrument, face amount	1,100		1,100
Notes Payable Due March 2030 \| Unsecured Debt
Schedule of Debt Outstanding [Line Items]
Debt instrument, face amount	$ 1,000		$ 1,000
Notes Payable Due March 2030 \| Unsecured Debt \| Guarantor Subsidiaries
Schedule of Debt Outstanding [Line Items]
Debt instrument, interest rate (as a percent)	5.75%		5.75%
Notes Payable Due June 2031 \| Unsecured Debt
Schedule of Debt Outstanding [Line Items]
Debt instrument, face amount	$ 1,000		$ 1,000
Notes Payable Due June 2031 \| Unsecured Debt \| Guarantor Subsidiaries
Schedule of Debt Outstanding [Line Items]
Debt instrument, interest rate (as a percent)	5.88%		5.88%
Euro-denominated Notes Payable Due July 2031 \| Unsecured Debt
Schedule of Debt Outstanding [Line Items]
Debt instrument, face amount	$ 1,200		$ 1,200
Euro-denominated Notes Payable Due July 2031 \| Unsecured Debt \| Guarantor Subsidiaries
Schedule of Debt Outstanding [Line Items]
Debt instrument, interest rate (as a percent)	4.13%		4.13%
Notes Payable Due August 2032 \| Unsecured Debt
Schedule of Debt Outstanding [Line Items]
Debt instrument, face amount	$ 3,000		$ 3,000
Notes Payable Due August 2032 \| Unsecured Debt \| Guarantor Subsidiaries
Schedule of Debt Outstanding [Line Items]
Debt instrument, interest rate (as a percent)	5.75%		5.75%
Notes Payable Due February 2033 \| Unsecured Debt
Schedule of Debt Outstanding [Line Items]
Debt instrument, face amount	$ 2,000		$ 2,000
Notes Payable Due February 2033 \| Unsecured Debt \| Guarantor Subsidiaries
Schedule of Debt Outstanding [Line Items]
Debt instrument, interest rate (as a percent)	6.13%		6.13%
Notes Payable Due August 2027 \| Unsecured Debt
Schedule of Debt Outstanding [Line Items]
Debt instrument, face amount	$ 400		$ 400
Floating Rate Bank Loan Due August 2027 \| Unsecured Debt \| Guarantor Subsidiaries \| Secured Overnight Financing Rate (SOFR)
Schedule of Debt Outstanding [Line Items]
Debt instrument, variable rate (as a percent)			1.13%
Notes Payable Due June 2030 \| Unsecured Debt \| Guarantor Subsidiaries
Schedule of Debt Outstanding [Line Items]
Debt instrument, interest rate (as a percent)	10.50%		10.50%
Notes Payable Due May 2028 \| Secured \| Guarantor Subsidiaries
Schedule of Debt Outstanding [Line Items]
Debt instrument, interest rate (as a percent)	10.38%		10.38%
Notes Payable Due March 2026 \| Unsecured Debt \| Guarantor Subsidiaries
Schedule of Debt Outstanding [Line Items]
Debt instrument, interest rate (as a percent)	7.63%		7.63%
Notes Payable Due March 2027 \| Unsecured Debt \| Guarantor Subsidiaries
Schedule of Debt Outstanding [Line Items]
Debt instrument, interest rate (as a percent)	5.75%		5.75%
Export Credit Facility Due 2035 \| Line of Credit
Schedule of Debt Outstanding [Line Items]
Undrawn export credit facilities	$ 8,700		$ 8,700
Value of vessels subject to negative pledges	$ 18,200		$ 18,200
Export Credit Facility Due 2037 \| Line of Credit \| Sun Princess II Limited \| Forecast
Schedule of Debt Outstanding [Line Items]
Debt instrument, face amount					$ 800
Convertible Notes Payable Due December 2027 \| Unsecured Debt \| Guarantor Subsidiaries
Schedule of Debt Outstanding [Line Items]
Debt instrument, interest rate (as a percent)	5.75%		5.75%