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Schedule I - Cash Dividends Received from Subsidiaries (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
WECI |  |  |
Notes to parent company financial statements |  |  |
Return of capital from subsidiaries | $ 363.7 | $ 164.1 | $ 583.2
ATC Holding LLC |  |  |
Notes to parent company financial statements |  |  |
Return of capital from subsidiaries |  | 32.0 | 19.6
Wispark |  |  |
Notes to parent company financial statements |  |  |
Return of capital from subsidiaries | 9.2 |  |
WEC Energy Group |  |  |
Notes to parent company financial statements |  |  |
Cash dividends received from subsidiaries | 1,035.6 | 795.7 | 898.1
Return of capital from subsidiaries | 372.9 | 196.1 | 602.8
WEC Energy Group | WE |  |  |
Notes to parent company financial statements |  |  |
Cash dividends received from subsidiaries | 630.0 | 360.0 | 395.0
WEC Energy Group | We Power |  |  |
Notes to parent company financial statements |  |  |
Cash dividends received from subsidiaries | 158.5 | 217.9 | 240.9
WEC Energy Group | WECI |  |  |
Notes to parent company financial statements |  |  |
Cash dividends received from subsidiaries | 87.7 | 46.4 | 33.6
WEC Energy Group | ATC Holding LLC |  |  |
Notes to parent company financial statements |  |  |
Cash dividends received from subsidiaries | 74.9 | 106.4 | 112.6
WEC Energy Group | WG |  |  |
Notes to parent company financial statements |  |  |
Cash dividends received from subsidiaries | 60.0 | 30.0 | 70.0
WEC Energy Group | UMERC |  |  |
Notes to parent company financial statements |  |  |
Cash dividends received from subsidiaries | 17.0 | 0.0 | 46.0
WEC Energy Group | Wispark |  |  |
Notes to parent company financial statements |  |  |
Cash dividends received from subsidiaries | 7.5 | 0.0 | 0.0
WEC Energy Group | Bluewater |  |  |
Notes to parent company financial statements |  |  |
Cash dividends received from subsidiaries | $ 0.0 | $ 35.0 | $ 0.0

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