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Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risks - Foreign Currency Exchange Rate Risks (Details) $ in Millions | Aug. 31, 2019 USD ($)
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Fair Value, Measurement Inputs, Disclosure [Line Items] |
Foreign currency contract commitments | $ 7,500
Foreign currency zero cost collars – cash flow hedges | Carnival Panorama | Cash flow hedging |
Fair Value, Measurement Inputs, Disclosure [Line Items] |
Weighted-Average Floor Rate | 1.05
Weighted- Average Ceiling Rate | 1.28
Foreign currency zero cost collars – cash flow hedges | Enchanted Princess | Cash flow hedging |
Fair Value, Measurement Inputs, Disclosure [Line Items] |
Weighted-Average Floor Rate | 1.04
Weighted- Average Ceiling Rate | 1.28
Foreign currency zero cost collars – cash flow hedges | Mardi Gras | Cash flow hedging |
Fair Value, Measurement Inputs, Disclosure [Line Items] |
Weighted-Average Floor Rate | 1.04
Weighted- Average Ceiling Rate | 1.28
Euro-denominated |
Fair Value, Measurement Inputs, Disclosure [Line Items] |
Debt instrument, face amount | $ 6,600
Sterling-denominated |
Fair Value, Measurement Inputs, Disclosure [Line Items] |
Debt instrument, face amount | $ 806

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