DEBT - Schedule of Outstanding Debt (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Total long-term debt	$ 4,475	$ 4,475
Less unamortized discount and debt issuance costs	(32)	(34)
Long-term debt, less unamortized discount and debt issuance costs	4,443	4,441
2026 Notes | Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 1,250	$ 1,250
Effective interest rate (as percent)	11.00%	11.00%
2029 Green Convertible Notes | Convertible Debt
Debt Instrument [Line Items]
Total long-term debt	$ 1,500	$ 1,500
Effective interest rate (as percent)	4.80%	4.80%
2030 Green Convertible Notes | Convertible Debt
Debt Instrument [Line Items]
Total long-term debt	$ 1,725	$ 1,725
Effective interest rate (as percent)	3.80%	3.80%