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v3.23.2

INCOME TAXES (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Effective Income Tax Rate Reconciliation, Amount |  |  |  |
Statutory federal income tax, amount | $ 71.1 | $ 73.7 | $ 193.2 | $ 219.2
State income taxes net of federal tax benefit, amount | 21.0 | 22.2 | 56.8 | 65.8
PTCs, amount | (33.9) | (22.9) | (100.1) | (67.7)
Federal excess deferred tax amortization, amount | (7.3) | (8.4) | (20.4) | (24.2)
Other, net, amount | (2.4) | (1.2) | (6.9) | (2.6)
Total income tax expense, amount | $ 48.5 | $ 63.4 | $ 122.6 | $ 190.5
Effective Income Tax Rate Reconciliation, Percent |  |  |  |
Statutory federal income tax, percentage | 21.00% | 21.00% | 21.00% | 21.00%
State income taxes net of federal tax benefit, percentage | 6.20% | 6.30% | 6.20% | 6.30%
PTCs, percentage | (10.00%) | (6.50%) | (10.90%) | (6.50%)
Federal excess deferred tax amortization, percentage | (2.20%) | (2.40%) | (2.20%) | (2.30%)
Other, net, percentage | (0.70%) | (0.30%) | (0.80%) | (0.30%)
Total income tax expense, percent | 14.30% | 18.10% | 13.30% | 18.20%

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