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Schedule I - Statements of Comprehensive Income (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Statements of comprehensive income |  |  |
Net income attributed to common shareholders | $ 1,331.7 | $ 1,408.1 | $ 1,300.3
Other comprehensive income (loss), net of tax | (0.9) | (3.6) | 3.6
Derivatives accounted for as cash flow hedges |  |  |
Net derivative gain, net of tax | 0.0 | 0.0 | 0.6
Reclassification of realized net derivative (gain) loss to net income, net of tax | (0.3) | (0.3) | 0.9
Defined benefit plans |  |  |
Pension and OPEB adjustments arising during the period, net of tax expense (benefit) of $(0.2), $(1.3), and $0.7, respectively | (0.6) | (3.5) | 1.7
Amortization of pension and OPEB costs included in net periodic benefit cost, net of tax | 0.0 | 0.2 | 0.4
Defined benefit plans, net | (0.6) | (3.3) | 2.1
WEC Energy Group |  |  |
Statements of comprehensive income |  |  |
Net income attributed to common shareholders | 1,331.7 | 1,408.1 | 1,300.3
Other comprehensive income (loss) from subsidiaries, net of tax | (0.5) | (2.7) | 1.4
Other comprehensive income (loss), net of tax | (0.9) | (3.6) | 3.6
Comprehensive income attributed to common shareholders | 1,330.8 | 1,404.5 | 1,303.9
WEC Energy Group | Derivatives accounted for as cash flow hedges |  |  |
Derivatives accounted for as cash flow hedges |  |  |
Net derivative gain, net of tax | 0.0 | 0.0 | 0.6
Reclassification of realized net derivative (gain) loss to net income, net of tax | (0.3) | (0.3) | 0.9
Cash flow hedges, net | (0.3) | (0.3) | 1.5
WEC Energy Group | Defined benefit plans |  |  |
Defined benefit plans |  |  |
Pension and OPEB adjustments arising during the period, net of tax expense (benefit) of $(0.2), $(1.3), and $0.7, respectively | (0.2) | (0.8) | 0.4
Amortization of pension and OPEB costs included in net periodic benefit cost, net of tax | 0.1 | 0.2 | 0.3
Defined benefit plans, net | $ (0.1) | $ (0.6) | $ 0.7

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