REGULATORY MATTERS - Grid Growth Formula Transmission Rate (Details) - Grid Growth Formula Transmission Rate - FERC	Mar. 06, 2026
Regulatory Matters [Line Items]
Capital structure, percentage	40.00%
Equity ratio, percentage	60.00%
Approved ROE	10.80%

Percentage of public utility's approved equity to capital, including debt and equity.

No definition available.

Name:	us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration