ACQUISITIONS - BLOOMING GROVE (Details) - Blooming Grove - WECI $ in Millions	Feb. 19, 2020 USD ($)	Jan. 27, 2020 USD ($) MW
Business Acquisition [Line Items]
Ownership interest of wind generating facility acquired		80.00%
Capacity of generation unit | MW		250
Acquisition purchase price | $	$ 44	$ 345
Additional ownership interest acquired	10.00%
Bonus depreciation percentage		100.00%