Fair Value Measurements and Derivative Instruments (Interest Rate Risk) (Details) - Cash flow hedge - Interest rate swaps $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)
Interest Rate Cash Flow Hedges [Abstract]
Notional Amount	$ 1,566
Celebrity Reflection term loan
Interest Rate Cash Flow Hedges [Abstract]
Notional Amount	$ 55
All-in Fixed Rate	2.88%
Quantum of the Seas term loan
Interest Rate Cash Flow Hedges [Abstract]
Notional Amount	$ 184
All-in Fixed Rate	3.78%
Anthem of the Seas term loan
Interest Rate Cash Flow Hedges [Abstract]
Notional Amount	$ 211
All-in Fixed Rate	3.90%
Ovation of the Seas term loan
Interest Rate Cash Flow Hedges [Abstract]
Notional Amount	$ 311
All-in Fixed Rate	3.20%
Harmony of the Seas term loan
Interest Rate Cash Flow Hedges [Abstract]
Notional Amount	$ 287	[1]
All-in Fixed Rate	2.26%	[1]
Odyssey of the Seas term loan
Interest Rate Cash Flow Hedges [Abstract]
Notional Amount	$ 345	[2]
All-in Fixed Rate	3.28%	[2]
Odyssey of the Seas term loan
Interest Rate Cash Flow Hedges [Abstract]
Notional Amount	$ 173	[2]
All-in Fixed Rate	2.91%	[2]
Term SOFR | Celebrity Reflection term loan
Interest Rate Cash Flow Hedges [Abstract]
Debt Floating Rate	0.40%	[3]
Term SOFR | Quantum of the Seas term loan
Interest Rate Cash Flow Hedges [Abstract]
Debt Floating Rate	1.30%	[3]
Term SOFR | Anthem of the Seas term loan
Interest Rate Cash Flow Hedges [Abstract]
Debt Floating Rate	1.30%	[3]
Term SOFR | Ovation of the Seas term loan
Interest Rate Cash Flow Hedges [Abstract]
Debt Floating Rate	1.00%	[3]
Term SOFR | Odyssey of the Seas term loan
Interest Rate Cash Flow Hedges [Abstract]
Debt Floating Rate	0.96%	[2],[3]
Term SOFR | Odyssey of the Seas term loan
Interest Rate Cash Flow Hedges [Abstract]
Debt Floating Rate	0.96%	[2],[3]
EURIBOR plus | Harmony of the Seas term loan
Interest Rate Cash Flow Hedges [Abstract]
Debt Floating Rate	1.15%	[1],[3]

[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 December 31, 2023.

[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.

[3] During the year ended December 31, 2023, we completed our transition from LIBOR to Term SOFR rates for all of our Interest rate swap agreements.