DEBT - Volkswagen Group Loan Commitment and Department of Energy Loan (Details) - USD ($) |
Mar. 31, 2025 |
Jan. 31, 2025 |
Dec. 31, 2024 |
Nov. 30, 2024 |
|---|---|---|---|---|
| Line of Credit Facility [Line Items] | ||||
| Total contract liabilities | $ 1,899,000,000 | $ 1,840,000,000 | ||
| Volkswagen Group | Noncash Consideration | ||||
| Line of Credit Facility [Line Items] | ||||
| Total contract liabilities | $ 201,000,000 | |||
| Loan Agreements | Term Loan | ||||
| Line of Credit Facility [Line Items] | ||||
| Unused borrowing capacity, amount not yet available | $ 1,000,000,000 | |||
| 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 |