Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

DERIVATIVE ASSET (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
DERIVATIVE ASSET (Details) - USD ($) $ in Millions	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Luminant Power Agreement
Derivative Instruments, Gain (Loss) [Line Items]
Termination notice period			6 months
Luminant Power Agreement
Derivative Instruments, Gain (Loss) [Line Items]
Power sales	$ 2.4	$ 1.1	$ 1.4	$ 2.3
Luminant Power Agreement \| Luminant ET Services Company LLC
Derivative Instruments, Gain (Loss) [Line Items]
Term of power agreement			5 years