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ACQUISITIONS AND IMPAIRMENTS (Tables)
3 Months Ended
Mar. 31, 2026
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]  
Schedule of Asset Acquisition The table below summarizes the impact at acquisition on I&M’s balance sheets:
Plant NameFuel TypeNet Maximum CapacityProperty, Plant and Equipment,
Net
Prepayments & Other Current AssetsMaterials
&
 Supplies
Accounts ReceivableAccounts Payables
(MWs)(in millions)
Oregon PlantNatural Gas870$918 $35 $$16 $