Fair Value Measurements and Derivative Instruments (Designated Cash Flow Hedges) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) on Derivative		$ (16,667)	$ (41,109)
Amount of gain or (loss) reclassified from accumulated other comprehensive loss into income		(20,713)	(79,119)
Interest expense		(1,291,753)	(844,238)	$ (408,513)
Depreciation and amortization expenses		(1,292,878)	(1,279,254)	(1,245,942)
Other Income (Expense)	[1]	20,284	(137,085)	(24,513)
Fuel		(385,322)	(371,015)	(697,962)
Net Income (loss)		(5,260,499)	(5,797,462)	1,878,887
Interest rate swaps
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) on Derivative		45,572	(112,960)
Interest rate swaps | Interest Income (Expense)
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of gain or (loss) reclassified from accumulated other comprehensive loss into income		(43,185)	(25,267)
Foreign currency forward contracts
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) on Derivative		(203,129)	130,426
Foreign currency forward contracts | Depreciation and Amortization Expenses
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of gain or (loss) reclassified from accumulated other comprehensive loss into income		(15,359)	(14,679)
Foreign currency forward contracts
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) on Derivative		0	0
Foreign currency forward contracts | Other income (expense)
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of gain or (loss) reclassified from accumulated other comprehensive loss into income		(2,797)	(7,315)
Fuel swaps
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) on Derivative		0	0
Fuel swaps | Other income (expense)
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of gain or (loss) reclassified from accumulated other comprehensive loss into income		(409)	3,549
Fuel swaps | Fuel
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of gain or (loss) reclassified from accumulated other comprehensive loss into income		41,037	(35,407)
Fuel swaps
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) on Derivative		140,890	(58,575)
Fuel swaps | Fuel
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of gain or (loss) reclassified from accumulated other comprehensive loss into income		41,037	(35,407)
Cash flow hedge
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) on Derivative				(146,108)
Cash flow hedge | Interest rate swaps
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) on Derivative				(72,732)
Cash flow hedge | Foreign currency forward contracts
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) on Derivative				(148,881)
Cash flow hedge | Foreign currency forward contracts
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) on Derivative				0
Cash flow hedge | Fuel swaps
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) on Derivative				0
Cash flow hedge | Fuel swaps
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) on Derivative				75,505
Reclassification out of accumulated other comprehensive income (loss) | Gain (loss) on cash flow derivative hedges:
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Net Income (loss)				5,205
Reclassification out of accumulated other comprehensive income (loss) | Gain (loss) on cash flow derivative hedges: | Interest rate swaps
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Interest expense		(43,185)	(25,267)	(4,289)
Reclassification out of accumulated other comprehensive income (loss) | Gain (loss) on cash flow derivative hedges: | Foreign currency forward contracts
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Depreciation and amortization expenses		(15,359)	(14,679)	(14,063)
Other Income (Expense)		(2,797)	(7,315)	(5,080)
Reclassification out of accumulated other comprehensive income (loss) | Gain (loss) on cash flow derivative hedges: | Foreign currency forward contracts
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Other Income (Expense)				(5,080)
Reclassification out of accumulated other comprehensive income (loss) | Gain (loss) on cash flow derivative hedges: | Fuel swaps
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Other Income (Expense)		(409)	3,549	(1,292)
Fuel		$ 41,037	$ (35,407)	29,929
Reclassification out of accumulated other comprehensive income (loss) | Gain (loss) on cash flow derivative hedges: | Fuel swaps
Effect of derivative instruments involved in fair value hedging on the consolidated financial statements
Fuel				$ 29,929

[1] Including a $62.6 million net loss related to the 2021 elimination of the Silversea Cruises reporting lag.