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Schedule I - Short-Term Notes Payable to Related Parties (Details) - WEC Energy Group - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Notes to parent company financial statements |  |
Short-term notes payable to related parties | $ 220.4 | $ 303.0
WBS |  |
Notes to parent company financial statements |  |
Short-term notes payable to related parties | 107.7 | 149.0
WECC |  |
Notes to parent company financial statements |  |
Short-term notes payable to related parties | 107.4 | 110.0
Integrys |  |
Notes to parent company financial statements |  |
Short-term notes payable to related parties | 5.3 | 0.0
Bluewater |  |
Notes to parent company financial statements |  |
Short-term notes payable to related parties | $ 0.0 | $ 44.0

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