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Fair Value Measurements and Derivative Instruments - Schedule of Interest Rate Derivatives (Details) - Interest rate swaps - Cash Flow Hedge
$ in Millions
 6 Months Ended
Jun. 30, 2025
USD ($)
Interest Rate Cash Flow Hedges [Abstract]  
Notional amount $ 1,056
Quantum of the Seas term loan  
Interest Rate Cash Flow Hedges [Abstract]  
Notional amount $ 92
Fixed interest rate 3.78%
Quantum of the Seas term loan | Term SOFR plus  
Interest Rate Cash Flow Hedges [Abstract]  
Debt Floating Rate 1.30%
Anthem of the Seas term loan  
Interest Rate Cash Flow Hedges [Abstract]  
Notional amount $ 121
Fixed interest rate 3.90%
Anthem of the Seas term loan | Term SOFR plus  
Interest Rate Cash Flow Hedges [Abstract]  
Debt Floating Rate 1.30%
Ovation of the Seas term loan  
Interest Rate Cash Flow Hedges [Abstract]  
Notional amount $ 208
Fixed interest rate 3.20%
Ovation of the Seas term loan | Term SOFR plus  
Interest Rate Cash Flow Hedges [Abstract]  
Debt Floating Rate 1.00%
Harmony of the Seas Term Loan  
Interest Rate Cash Flow Hedges [Abstract]  
Notional amount $ 203 [1]
Fixed interest rate 2.26% [1]
Harmony of the Seas Term Loan | EURIBOR plus  
Interest Rate Cash Flow Hedges [Abstract]  
Debt Floating Rate 1.15% [1]
Odyssey of the Seas Term Loan  
Interest Rate Cash Flow Hedges [Abstract]  
Notional amount $ 288 [2]
Fixed interest rate 3.28% [2]
Odyssey of the Seas Term Loan | Term SOFR plus  
Interest Rate Cash Flow Hedges [Abstract]  
Debt Floating Rate 0.96% [2]
Odyssey of the Seas Term Loan  
Interest Rate Cash Flow Hedges [Abstract]  
Notional amount $ 144 [2]
Fixed interest rate 2.91% [2]
Odyssey of the Seas Term Loan | Term SOFR plus  
Interest Rate Cash Flow Hedges [Abstract]  
Debt Floating Rate 0.96% [2]
[1] Interest rate swap agreements hedging the Euro-denominated term loan for Harmony of the Seas include EURIBOR zero-floors matching the hedged debt EURIBOR zero-floor. Amount presented is based on the exchange rate as of June 30, 2025.
[2] Interest rate swap agreements hedging the term loan of Odyssey of the Seas include Term SOFR zero-floors, Term SOFR with no floors, and Overnight SOFR.