v3.26.3
DEBT - Schedule of Debt (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Total secured and unsecured debt $ 12,096 $ 13,302
Unamortized (discount)/premium and debt issue cost, net and other 9 6
Total debt 12,105 13,308
Less: current maturities (2,981) (1,372)
Total long-term debt $ 9,124 11,936
Unsecured Notes | Unsecured debt    
Debt Instrument [Line Items]    
Maturity dates range, start Dec. 31, 2028  
Maturity dates range, end Dec. 31, 2030  
Total secured and unsecured debt $ 2,884 2,884
Unsecured Notes | Unsecured debt | Minimum    
Debt Instrument [Line Items]    
Interest rate per annum 3.75%  
Unsecured Notes | Unsecured debt | Maximum    
Debt Instrument [Line Items]    
Interest rate per annum 5.25%  
Unsecured Payroll Support Program Loans | Unsecured debt    
Debt Instrument [Line Items]    
Maturity date Dec. 31, 2031  
Interest rate per annum 5.66%  
Total secured and unsecured debt $ 391 1,848
SkyMiles Notes | Secured debt    
Debt Instrument [Line Items]    
Maturity dates range, start Dec. 31, 2026  
Maturity dates range, end Dec. 31, 2028  
Interest rate per annum 4.75%  
Total secured and unsecured debt $ 2,566 3,422
SkyMiles Term Loan | Secured debt    
Debt Instrument [Line Items]    
Maturity dates range, start Dec. 31, 2026  
Maturity dates range, end Dec. 31, 2028  
Interest rate per annum 4.98%  
Total secured and unsecured debt $ 584 588
NYTDC Special Facilities Revenue Bonds | Bonds    
Debt Instrument [Line Items]    
Maturity dates range, start Dec. 31, 2026  
Maturity dates range, end Dec. 31, 2045  
Total secured and unsecured debt $ 3,448 3,522
NYTDC Special Facilities Revenue Bonds | Bonds | Minimum    
Debt Instrument [Line Items]    
Interest rate per annum 4.00%  
NYTDC Special Facilities Revenue Bonds | Bonds | Maximum    
Debt Instrument [Line Items]    
Interest rate per annum 6.00%  
2026 Term Loan | Secured debt    
Debt Instrument [Line Items]    
Maturity date Dec. 31, 2027  
Interest rate per annum 5.02%  
Total secured and unsecured debt $ 1,250 0
Financing secured by aircraft - Certificates | Secured debt    
Debt Instrument [Line Items]    
Maturity dates range, start Dec. 31, 2026  
Maturity dates range, end Dec. 31, 2028  
Total secured and unsecured debt $ 837 894
Financing secured by aircraft - Certificates | Secured debt | Minimum    
Debt Instrument [Line Items]    
Interest rate per annum 2.00%  
Financing secured by aircraft - Certificates | Secured debt | Maximum    
Debt Instrument [Line Items]    
Interest rate per annum 8.00%  
Financing secured by aircraft - Notes | Secured debt    
Debt Instrument [Line Items]    
Maturity dates range, start Dec. 31, 2026  
Maturity dates range, end Dec. 31, 2033  
Total secured and unsecured debt $ 70 78
Financing secured by aircraft - Notes | Secured debt | Minimum    
Debt Instrument [Line Items]    
Interest rate per annum 6.01%  
Financing secured by aircraft - Notes | Secured debt | Maximum    
Debt Instrument [Line Items]    
Interest rate per annum 6.24%  
Other financings | Secured and unsecured debt    
Debt Instrument [Line Items]    
Maturity date Dec. 31, 2030  
Interest rate per annum 5.00%  
Total secured and unsecured debt $ 66 66
2026 Corporate Revolving Credit Facility | Revolving credit facility    
Debt Instrument [Line Items]    
Maturity dates range, start Dec. 31, 2029  
Maturity dates range, end Dec. 31, 2031  
Total secured and unsecured debt $ 0 0
Other revolving credit facilities | Revolving credit facility    
Debt Instrument [Line Items]    
Maturity dates range, start Dec. 31, 2027  
Maturity dates range, end Dec. 31, 2029  
Total secured and unsecured debt $ 0 $ 0