Long-Term Debt - Narrative (Details) $ in Millions	1 Months Ended
Mar. 31, 2018 USD ($)
Long-Term Debt
Unsecured term loan maximum borrowing capacity	$ 130.0
Debt Floating Rate	1.32%
Symphony of the Seas
Long-Term Debt
Unsecured term loan maximum borrowing capacity	$ 1,200.0
Long term debt, term	12 years
Fixed interest rate	3.82%

Represents the maximum borrowing capacity which the company has arranged under a credit agreement.

No definition available.

Name:	rcl_UnsecuredTermLoanMaximumBorrowingCapacity
Namespace Prefix:	rcl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_DebtInstrumentAxis=rcl_SymphonyoftheSeasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: