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Schedule I - Statements of Comprehensive Income (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Statements of comprehensive income |  |  |
Net income attributed to common shareholders | $ 1,408.1 | $ 1,300.3 | $ 1,199.9
Other comprehensive income (loss), net of tax | (3.6) | 3.6 | (2.7)
Comprehensive income attributed to common shareholders | 1,404.5 | 1,303.9 | 1,197.2
Derivatives accounted for as cash flow hedges |  |  |
Net derivative gain (loss), net of tax expense (benefit) of $—, $0.2, and $(1.6), respectively | 0.0 | 0.6 | (4.3)
Reclassification of realized net derivative (gain) loss to net income, net of tax | (0.3) | 0.9 | 1.5
Defined benefit plans |  |  |
Pension and OPEB adjustments arising during the period, net of tax expense (benefit) of $(1.3), $0.7, and $(0.2), respectively | (3.5) | 1.7 | (0.5)
Amortization of pension and OPEB costs included in net periodic benefit cost, net of tax | 0.2 | 0.4 | 0.6
Defined benefit plans, net | (3.3) | 2.1 | 0.1
WEC Energy Group |  |  |
Statements of comprehensive income |  |  |
Net income attributed to common shareholders | 1,408.1 | 1,300.3 | 1,199.9
Other comprehensive income (loss) from subsidiaries, net of tax | (2.7) | 1.4 | 0.2
Other comprehensive income (loss), net of tax | (3.6) | 3.6 | (2.7)
WEC Energy Group | Derivatives accounted for as cash flow hedges |  |  |
Derivatives accounted for as cash flow hedges |  |  |
Net derivative gain (loss), net of tax expense (benefit) of $—, $0.2, and $(1.6), respectively | 0.0 | 0.6 | (4.3)
Reclassification of realized net derivative (gain) loss to net income, net of tax | (0.3) | 0.9 | 1.5
Cash flow hedges, net | (0.3) | 1.5 | (2.8)
WEC Energy Group | Defined benefit plans |  |  |
Defined benefit plans |  |  |
Pension and OPEB adjustments arising during the period, net of tax expense (benefit) of $(1.3), $0.7, and $(0.2), respectively | (0.8) | 0.4 | (0.4)
Amortization of pension and OPEB costs included in net periodic benefit cost, net of tax | 0.2 | 0.3 | 0.3
Defined benefit plans, net | $ (0.6) | $ 0.7 | $ (0.1)

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