(Loss) Earnings Per Share (Reconciliation of Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net (Loss) Income attributable to Royal Caribbean Cruises Ltd. for basic and diluted (loss) earnings per share	$ (5,260,499)	$ (5,797,462)	$ 1,878,887
Weighted-average common shares outstanding (in shares)	251,812	214,335	209,405
Dilutive effect of stock-based awards (in shares)	0	0	525
Diluted weighted-average shares outstanding (in shares)	251,812	214,335	209,930
Basic (loss) earnings per share (in dollars per share)	$ (20.89)	$ (27.05)	$ 8.97
Diluted (loss) earnings per share (in dollars per share)	$ (20.89)	$ (27.05)	$ 8.95