DEBT - 2031 Green Secured Notes (Details) - 2031 Green Secured Notes - Senior Notes - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2025	Dec. 31, 2025
Line of Credit Facility [Line Items]
Unpaid principal balance plus accrued interest	$ 1,250
Contractual interest rate (as percent)	10.00%
Fair Value, Inputs, Level 2
Line of Credit Facility [Line Items]
Fair value of 2026 Notes		$ 1,231
Debt Instrument, Redemption, Period One
Line of Credit Facility [Line Items]
Redemption (as percent)	100.00%
Debt Instrument, Redemption, Period Two
Line of Credit Facility [Line Items]
Redemption (as percent)	101.00%

Face (par) amount of debt instrument at time of issuance.

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