ORGANIZATION AND BASIS OF PRESENTATION - Schedule of Error Corrections related to Statements of Cash Flows (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 466	$ 414
Adjustments to reconcile net income to net cash from operating activities -
Depreciation and amortization	117	408
Net cash provided from operating activities	148	637
JERSEY CENTRAL POWER & LIGHT COMPANY
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	66	47
Adjustments to reconcile net income to net cash from operating activities -
Depreciation and amortization	(57)	45
Net cash provided from operating activities	$ 57	205
As Reported \| JERSEY CENTRAL POWER & LIGHT COMPANY
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income		49
Adjustments to reconcile net income to net cash from operating activities -
Depreciation and amortization		43
Net cash provided from operating activities		205
Adjustment \| JERSEY CENTRAL POWER & LIGHT COMPANY
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income		(2)
Adjustments to reconcile net income to net cash from operating activities -
Depreciation and amortization		2
Net cash provided from operating activities		$ 0

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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FIRSTENERGY CORP 10-Q