Quarterly report pursuant to Section 13 or 15(d)

Related Party Disclosures (Details)

v3.21.1
Related Party Disclosures (Details) - USD ($)
$ in Millions
1 Months Ended
May 28, 2020
Mar. 31, 2021
Related Party Transaction [Line Items]    
Repayment and extinguishment of debt, amount   $ 1,500
Private Exchangeable Notes    
Related Party Transaction [Line Items]    
Repayment and extinguishment of debt, amount   $ 1,000
NCLC | Private Exchangeable Notes | Maximum    
Related Party Transaction [Line Items]    
Shares issuable upon exchange 46,577,947  
L Catterton [Member]    
Related Party Transaction [Line Items]    
Beneficial ownership percentage   10.00%
L Catterton [Member] | Minimum    
Related Party Transaction [Line Items]    
Investor ownership threshold 50.00%