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LONG-TERM DEBT (Details) $ in Millions | 1 Months Ended
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Sep. 30, 2022 USD ($)
WE | WE 4.75% Debentures due September 30, 2032 |
Debt Instrument [Line Items] |
Proceeds from issuance of debt | $ 500.0
Interest rate on long-term debt | 4.75%
WEC Energy Group | WEC Senior Notes 5.00% due September 27, 2025 |
Debt Instrument [Line Items] |
Proceeds from issuance of debt | $ 500.0
Interest rate on long-term debt | 5.00%
WEC Energy Group | WEC Senior Notes 5.15% due October 1, 2027 |
Debt Instrument [Line Items] |
Proceeds from issuance of debt | $ 400.0
Interest rate on long-term debt | 5.15%

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