v3.26.1
Debt - Narrative (Details)
$ in Millions
 1 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
Feb. 28, 2026
USD ($)
Jun. 30, 2026
USD ($)
amendment
Jul. 31, 2026
USD ($)
Long-Term Debt        
Number of revolving credit facilities amendments | amendment     2  
Minimum | Contract with Customer, Liability, Up-Front Payment Arrangement        
Long-Term Debt        
Credit agency fees, percentage of loan amount payable     2.35%  
Maximum | Contract with Customer, Liability, Up-Front Payment Arrangement        
Long-Term Debt        
Credit agency fees, percentage of loan amount payable     4.53%  
Unsecured senior notes | Senior Unsecured Notes Due 2036 and 2038        
Long-Term Debt        
Proceeds from issuance debt   $ 2,500    
Fixed interest rate   5.25%    
Unsecured senior notes | Senior Unsecured Notes Due 2036        
Long-Term Debt        
Face amount   $ 1,250    
Fixed interest rate   4.75%    
Unsecured senior notes | Senior Unsecured Notes Due 2038        
Long-Term Debt        
Face amount   $ 1,250    
Unsecured term loans | Legend Of The Seas Unsecured Term Loan        
Long-Term Debt        
Proceeds from issuance debt $ 1,900      
Fixed interest rate 3.41%   3.41%  
Percentage of unsecured term loan guaranteed by an export credit agency 95.00%      
Debt instrument, term (in years) 12 years      
Margin on floating rate base (as a percent) 1.19%      
Revolving Credit Facility | Line of Credit | Aggregate Revolving Capacity        
Long-Term Debt        
Maximum borrowing capacity $ 6,400   $ 6,400  
Remaining borrowing $ 6,000   $ 6,000  
Revolving Credit Facility | Line of Credit | Aggregate Revolving Capacity | Subsequent Event        
Long-Term Debt        
Accordion feature increased capacity       $ 6,600
Accordion feature increase       $ 250