v3.25.2
DEBT - Debt Facilities Not Outstanding (Details) - USD ($)
Jun. 30, 2025
Jan. 31, 2025
Dec. 31, 2024
Nov. 30, 2024
Line of Credit Facility [Line Items]        
Total contract liabilities $ 2,243,000,000   $ 1,840,000,000  
Volkswagen Group | Noncash Consideration        
Line of Credit Facility [Line Items]        
Total contract liabilities 201,000,000      
Note A Loan | Term Loan | Tranche One        
Line of Credit Facility [Line Items]        
Unused borrowing capacity, amount not yet available   $ 3,355,000,000    
Note A, B and DOE Loan | Term Loan | Tranche Two        
Line of Credit Facility [Line Items]        
Unused borrowing capacity, amount not yet available   $ 2,620,000,000    
Loan Agreements | Term Loan        
Line of Credit Facility [Line Items]        
Unused borrowing capacity, amount not yet available       $ 1,000,000,000
Revolving Credit Facility | ABL Facility | Line of Credit        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity 1,500,000,000      
Long-term line of credit 0      
Remaining borrowing capacity 1,011,000,000      
Letter of Credit | ABL Facility | Line of Credit        
Line of Credit Facility [Line Items]        
Letter of credit, sub-limit amount 1,000,000,000      
Letters of credit outstanding, amount $ 185,000,000