v3.26.1
Debt - Narrative (Details)
shares in Millions, $ in Millions
 1 Months Ended 6 Months Ended
Dec. 31, 2025
USD ($)
shares
May 31, 2026
USD ($)
Schedule of Debt Outstanding [Line Items]    
Ships and ship improvements   $ 40,300
Vessels and material intellectual property   22,400
Vessels and related assets   20,600
Debt instrument, convertible, equity component minimum threshold   5,000
Debt instrument, convertible, liquidity component minimum threshold   $ 1,500
Debt instrument, debt covenant, period    
Schedule of Debt Outstanding [Line Items]    
Debt instrument, debt covenant, required debt to capital covenant (as a percent)   65.00%
Revolving facility    
Schedule of Debt Outstanding [Line Items]    
Available for borrowing   $ 4,500
New Revolving Facility | February 28, 2026 testing date    
Schedule of Debt Outstanding [Line Items]    
Debt instrument, debt covenant, required interest coverage covenant, ratio   3.0
Export Credit Facility | Line of Credit | Sun Princess II Limited    
Schedule of Debt Outstanding [Line Items]    
Debt instrument, face amount   $ 1,800
Export Credit Facility | Line of Credit | Sun Princess Limited    
Schedule of Debt Outstanding [Line Items]    
Debt instrument, face amount   1,800
Export Credit Facility Due 2033 | Line of Credit    
Schedule of Debt Outstanding [Line Items]    
Undrawn export credit facilities   10,800
Value of vessels subject to negative pledges   $ 19,200
Convertible Notes Payable Due December 2027 | Unsecured Debt    
Schedule of Debt Outstanding [Line Items]    
Debt conversion, converted instrument, amount $ 1,100  
Converted instrument, shares issued (in shares) | shares 69.1  
Convertible Notes Payable Due December 2027 | Unsecured Debt | Guarantor Subsidiaries    
Schedule of Debt Outstanding [Line Items]    
Cash payment $ 500