General	12 Months Ended
Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	General Description of Business We are a global cruise company. We own and operate three global cruise brands: Royal Caribbean International, Celebrity Cruises and Azamara Club Cruises. We also own a 50% joint venture interest in the German brand TUI Cruises, a 49% interest in the Spanish brand Pullmantur and have a 36% interest in the Chinese brand SkySea Cruises (collectively, our "Partner Brands"). We account for our investments in our Partner Brands under the equity method of accounting. Together, our Global Brands and our Partner Brands operate a combined 49 ships as of December 31, 2017. Our ships operate on a selection of worldwide itineraries that call on approximately 540 destinations on all seven continents. Effective July 31, 2016, we sold 51% of our interest in Pullmantur Holdings (formerly known as Royal Caribbean Holdings de España S.L. or "RCHE"), the parent company of the Pullmantur brand. We retain a 49% interest in Pullmantur Holdings as well as full ownership of the four vessels currently operated by the Pullmantur brand under bareboat charter arrangements. We account for the bareboat charters of the vessels to Pullmantur Holdings as operating leases. We also provide certain ship management services to Pullmantur Holdings. We recognized an immaterial gain on the sale of our majority interest in Pullmantur Holdings. We had also retained full ownership of the aircraft which we subsequently sold during 2017. Effective August 2016, we no longer consolidate Pullmantur Holdings in our consolidated financial statements and our investment in the company is accounted for under the equity method of accounting. Refer to Note 6. Other Assets for further information on our retained interest in Pullmantur Holdings and Note 5. Property and Equipment for further information on the sale of the aircraft. The sale did not represent a strategic shift that will have a major effect on our operations and financial results, as we continue to provide similar itineraries to and source passengers from the markets served by the Pullmantur business. Therefore, the sale of Pullmantur Holdings did not meet the criteria for discontinued operations reporting. Basis for Preparation of Consolidated Financial Statements The consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP"). Estimates are required for the preparation of financial statements in accordance with these principles. Actual results could differ from these estimates. Refer to Note 2. Summary of Significant Accounting Policies for a discussion of our significant accounting policies. All significant intercompany accounts and transactions are eliminated in consolidation. We consolidate entities over which we have control, usually evidenced by a direct ownership interest of greater than 50%, and variable interest entities where we are determined to be the primary beneficiary. Refer to Note 6. Other Assets for further information regarding our variable interest entities. For affiliates we do not control but over which we have significant influence on financial and operating policies, usually evidenced by a direct ownership interest from 20% to 50%, the investment is accounted for using the equity method. Prior to January 1, 2016, we consolidated the operating results of Pullmantur Holdings on a two-month reporting lag to allow for more timely preparation of our consolidated financial statements. Effective January 1, 2016, we eliminated the two-month reporting lag to reflect Pullmantur Holdings' financial position, results of operations and cash flows concurrently and consistently with the fiscal calendar of the Company ("elimination of the Pullmantur reporting lag"). The elimination of the Pullmantur reporting lag represented a change in accounting principle which we believed to be preferable because it provided more current information to the users of our financial statements. A change in accounting principle requires retrospective application, if material. The impact of the elimination of the reporting lag was immaterial to prior periods and was immaterial for our fiscal year ended December 31, 2016. As a result, we have accounted for this change in accounting principle in our consolidated results for the year ended December 31, 2016. Accordingly, the results of Pullmantur Holdings for November and December 2015 were included in our statement of comprehensive income (loss) for the year ended December 31, 2016. The effect of this change was a decrease to net income of $21.7 million, which has been reported within Other expense in our consolidated statements of comprehensive income (loss) for the year ended December 31, 2016.

General

Description of Business

We are a global cruise company. We own and operate three global cruise brands: Royal Caribbean International, Celebrity Cruises and Azamara Club Cruises. We also own a 50% joint venture interest in the German brand TUI Cruises, a 49% interest in the Spanish brand Pullmantur and have a 36% interest in the Chinese brand SkySea Cruises (collectively, our "Partner Brands"). We account for our investments in our Partner Brands under the equity method of accounting. Together, our Global Brands and our Partner Brands operate a combined 49 ships as of December 31, 2017. Our ships operate on a selection of worldwide itineraries that call on approximately 540 destinations on all seven continents.

Effective July 31, 2016, we sold 51% of our interest in Pullmantur Holdings (formerly known as Royal Caribbean Holdings de España S.L. or "RCHE"), the parent company of the Pullmantur brand. We retain a 49% interest in Pullmantur Holdings as well as full ownership of the four vessels currently operated by the Pullmantur brand under bareboat charter arrangements. We account for the bareboat charters of the vessels to Pullmantur Holdings as operating leases. We also provide certain ship management services to Pullmantur Holdings. We recognized an immaterial gain on the sale of our majority interest in Pullmantur Holdings. We had also retained full ownership of the aircraft which we subsequently sold during 2017. Effective August 2016, we no longer consolidate Pullmantur Holdings in our consolidated financial statements and our investment in the company is accounted for under the equity method of accounting. Refer to Note 6. Other Assets for further information on our retained interest in Pullmantur Holdings and Note 5. Property and Equipment for further information on the sale of the aircraft. The sale did not represent a strategic shift that will have a major effect on our operations and financial results, as we continue to provide similar itineraries to and source passengers from the markets served by the Pullmantur business. Therefore, the sale of Pullmantur Holdings did not meet the criteria for discontinued operations reporting.

Basis for Preparation of Consolidated Financial Statements

The consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP"). Estimates are required for the preparation of financial statements in accordance with these principles. Actual results could differ from these estimates. Refer to Note 2. Summary of Significant Accounting Policies for a discussion of our significant accounting policies.

All significant intercompany accounts and transactions are eliminated in consolidation. We consolidate entities over which we have control, usually evidenced by a direct ownership interest of greater than 50%, and variable interest entities where we are determined to be the primary beneficiary. Refer to Note 6. Other Assets for further information regarding our variable interest entities. For affiliates we do not control but over which we have significant influence on financial and operating policies, usually evidenced by a direct ownership interest from 20% to 50%, the investment is accounted for using the equity method.

Prior to January 1, 2016, we consolidated the operating results of Pullmantur Holdings on a two-month reporting lag to allow for more timely preparation of our consolidated financial statements. Effective January 1, 2016, we eliminated the two-month reporting lag to reflect Pullmantur Holdings' financial position, results of operations and cash flows concurrently and consistently with the fiscal calendar of the Company ("elimination of the Pullmantur reporting lag"). The elimination of the Pullmantur reporting lag represented a change in accounting principle which we believed to be preferable because it provided more current information to the users of our financial statements. A change in accounting principle requires retrospective application, if material. The impact of the elimination of the reporting lag was immaterial to prior periods and was immaterial for our fiscal year ended December 31, 2016. As a result, we have accounted for this change in accounting principle in our consolidated results for the year ended December 31, 2016. Accordingly, the results of Pullmantur Holdings for November and December 2015 were included in our statement of comprehensive income (loss) for the year ended December 31, 2016. The effect of this change was a decrease to net income of $21.7 million, which has been reported within Other expense in our consolidated statements of comprehensive income (loss) for the year ended December 31, 2016.