Commitments and Contingencies	3 Months Ended
Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Ship Purchase Obligations Our future capital commitments consist primarily of new ship orders. As of March 31, 2019, we had two Quantum-class ships, one Oasis-class ship and two ships of a new generation of ships, known as our Icon-class, on order for our Royal Caribbean International brand with an aggregate capacity of approximately 25,300 berths. As of March 31, 2019, we have three Edge-class ships and a ship designed for the Galapagos Islands on order for our Celebrity Cruises brand with an aggregate capacity of approximately 9,400 berths. Additionally, as of March 31, 2019, we have three ships on order for our Silversea Cruises brand with an aggregate capacity of approximately 1,200 berths. In September 2018, Silversea Cruises signed a memorandum of understanding with Meyer Werft (the "MOU") to build two ships of a new generation of ships. The ships are expected to have an aggregate capacity of approximately 1,200 berths and are expected to enter service in 2022 and 2023, respectively. The MOU with Meyer Werft was contingent upon the completion of final documentation, which was completed in April 2019. In February 2019, we entered into an agreement with Chantiers de l’Atlantique to build the sixth Oasis-class ship for Royal Caribbean International. The ship is expected to have an aggregate capacity of approximately 5,700 berths and is expected to enter service in the fourth quarter of 2023. The order with Chantiers de l’Atlantique is contingent upon completion of conditions precedent and financing, which is expected to be completed in 2019. In April 2019, we entered into an agreement with Chantiers de l’Atlantique to build the fifth Edge-class ship for Celebrity Cruises. The ship is expected to have an aggregate capacity of approximately 3,200 berths and is expected to enter service in the fourth quarter of 2024. The order with Chantiers de l’Atlantique is contingent upon completion of conditions precedent and financing. As of March 31, 2019, the aggregate cost of our ships on order, not including any ships on order by our Partner Brands, and the two ships under the MOU for Silversea Cruises and the sixth Oasis-class ship for Royal Caribbean International that remain contingent upon the items discussed above, was $11.4 billion, of which we had deposited $667.8 million. Approximately 54.0% of the aggregate cost was exposed to fluctuations in the Euro exchange rate at March 31, 2019. Refer to Note 14. Fair Value Measurements and Derivative Instruments for further information. Litigation We are routinely involved in claims typical within the cruise vacation industry. The majority of these claims are covered by insurance. We believe the outcome of such claims, net of expected insurance recoveries, will not have a material adverse impact on our financial condition or results of operations and cash flows. Other If any person acquires ownership of more than 50% of our common stock or, subject to certain exceptions, during any 24-month period, a majority of our board of directors is no longer comprised of individuals who were members of our board of directors on the first day of such period, we may be obligated to prepay indebtedness outstanding under our credit facilities, which we may be unable to replace on similar terms. Our public debt securities also contain change of control provisions that would be triggered by a third-party acquisition of greater than 50% of our common stock coupled with a ratings downgrade. If this were to occur, it would have an adverse impact on our liquidity and operations.

Commitments and Contingencies

Ship Purchase Obligations

Our future capital commitments consist primarily of new ship orders. As of March 31, 2019, we had two Quantum-class ships, one Oasis-class ship and two ships of a new generation of ships, known as our Icon-class, on order for our Royal Caribbean International brand with an aggregate capacity of approximately 25,300 berths. As of March 31, 2019, we have three Edge-class ships and a ship designed for the Galapagos Islands on order for our Celebrity Cruises brand with an aggregate capacity of approximately 9,400 berths. Additionally, as of March 31, 2019, we have three ships on order for our Silversea Cruises brand with an aggregate capacity of approximately 1,200 berths.

In September 2018, Silversea Cruises signed a memorandum of understanding with Meyer Werft (the "MOU") to build two ships of a new generation of ships. The ships are expected to have an aggregate capacity of approximately 1,200 berths and are expected to enter service in 2022 and 2023, respectively. The MOU with Meyer Werft was contingent upon the completion of final documentation, which was completed in April 2019.

In February 2019, we entered into an agreement with Chantiers de l’Atlantique to build the sixth Oasis-class ship for Royal Caribbean International. The ship is expected to have an aggregate capacity of approximately 5,700 berths and is expected to enter service in the fourth quarter of 2023. The order with Chantiers de l’Atlantique is contingent upon completion of conditions precedent and financing, which is expected to be completed in 2019.

In April 2019, we entered into an agreement with Chantiers de l’Atlantique to build the fifth Edge-class ship for Celebrity Cruises. The ship is expected to have an aggregate capacity of approximately 3,200 berths and is expected to enter service in the fourth quarter of 2024. The order with Chantiers de l’Atlantique is contingent upon completion of conditions precedent and financing.

As of March 31, 2019, the aggregate cost of our ships on order, not including any ships on order by our Partner Brands, and the two ships under the MOU for Silversea Cruises and the sixth Oasis-class ship for Royal Caribbean International that remain contingent upon the items discussed above, was $11.4 billion, of which we had deposited $667.8 million. Approximately 54.0% of the aggregate cost was exposed to fluctuations in the Euro exchange rate at March 31, 2019. Refer to Note 14. Fair Value Measurements and Derivative Instruments for further information.

Litigation

We are routinely involved in claims typical within the cruise vacation industry. The majority of these claims are covered by insurance. We believe the outcome of such claims, net of expected insurance recoveries, will not have a material adverse impact on our financial condition or results of operations and cash flows.

Other

If any person acquires ownership of more than 50% of our common stock or, subject to certain exceptions, during any 24-month period, a majority of our board of directors is no longer comprised of individuals who were members of our board of directors on the first day of such period, we may be obligated to prepay indebtedness outstanding under our credit facilities, which we may be unable to replace on similar terms. Our public debt securities also contain change of control provisions that would be triggered by a third-party acquisition of greater than 50% of our common stock coupled with a ratings downgrade. If this were to occur, it would have an adverse impact on our liquidity and operations.