DEBT - Schedule of Outstanding Debt (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total long-term debt	$ 5,505	$ 4,475
Less unamortized discount and debt issuance costs	(37)	(44)
Long-term debt, less unamortized discount and debt issuance costs	5,468	4,431
2026 Notes | Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 1,250	$ 1,250
Effective interest rate (as a percent)	11.90%	12.00%
2029 Green Convertible Notes | Convertible Debt
Debt Instrument [Line Items]
Total long-term debt	$ 1,500	$ 1,500
Effective interest rate (as a percent)	4.90%	4.90%
2030 Green Convertible Notes | Convertible Debt
Debt Instrument [Line Items]
Total long-term debt	$ 1,725	$ 1,725
Effective interest rate (as a percent)	3.80%	3.80%
2026 Convertible Note (at fair value) | Convertible Debt
Debt Instrument [Line Items]
Total long-term debt	$ 1,030	$ 0
Effective interest rate (as a percent)	4.80%	0.00%