v3.26.3
Debt - Schedule of Debt (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Feb. 28, 2025
Debt Instrument [Line Items]        
Total debt, principal $ 38,006 $ 22,049    
Unamortized deferred financing costs 145 390    
Total debt, net 37,861 21,659    
Finance lease liability 983 1,237    
Total debt and finance leases, principal 38,989 23,286    
Total debt and finance leases, net 38,844 22,896    
Less: Short-term portion 2,698 928    
Total debt and finance leases, net of current, principal 36,291 22,358    
Total debt and finance leases, net of current, net 36,146 21,968    
SpaceX Notes | Unsecured Debt        
Debt Instrument [Line Items]        
Total debt, principal 25,000      
Unamortized deferred financing costs 145      
Total debt, net 24,855      
X 2027 and X 2030 Notes | Senior Notes        
Debt Instrument [Line Items]        
Total debt, principal 27 27    
Unamortized deferred financing costs 0 0    
Total debt, net 27 27    
X B-1 Term Loan | Line of Credit        
Debt Instrument [Line Items]        
Total debt, principal   6,504    
Unamortized deferred financing costs   280    
Total debt, net   6,224    
X B-3 Term Loan | Line of Credit        
Debt Instrument [Line Items]        
Interest rate       9.50%
Total debt, principal   5,966    
Unamortized deferred financing costs   54    
Total debt, net   5,912    
xAI Fixed Rate Term Loan | Line of Credit        
Debt Instrument [Line Items]        
Interest rate     12.50%  
Total debt, principal   995    
Unamortized deferred financing costs   4    
Total debt, net   991    
xAI Floating Rate Term Loan | Line of Credit        
Debt Instrument [Line Items]        
Total debt, principal   995    
Unamortized deferred financing costs   40    
Total debt, net   $ 955    
xAI 12.5% Secured Senior Notes        
Debt Instrument [Line Items]        
Interest rate   12.50%    
xAI 12.5% Secured Senior Notes | Secured Debt        
Debt Instrument [Line Items]        
Interest rate   12.50% 12.50%  
Total debt, principal   $ 3,000    
Unamortized deferred financing costs   12    
Total debt, net   2,988    
Other Financings        
Debt Instrument [Line Items]        
Total debt, principal 12,979 4,562    
Unamortized deferred financing costs 0 0    
Total debt, net $ 12,979 $ 4,562