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v3.23.1

INCOME TAXES (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Effective Income Tax Rate Reconciliation, Amount |  |
Statutory federal income tax, amount | $ 122.1 | $ 145.5
State income taxes net of federal tax benefit, amount | 35.8 | 43.6
PTCs, amount | (66.2) | (44.8)
Federal excess deferred tax amortization, amount | (13.1) | (15.8)
Other, net, amount | (4.5) | (1.4)
Total income tax expense, amount | $ 74.1 | $ 127.1
Effective Income Tax Rate Reconciliation, Percent |  |
Statutory federal income tax, percentage | 21.00% | 21.00%
State income taxes net of federal tax benefit, percentage | 6.20% | 6.30%
PTCs, percentage | (11.40%) | (6.50%)
Federal excess deferred tax amortization, percentage | (2.30%) | (2.30%)
Other, net, percentage | (0.80%) | (0.20%)
Total income tax expense, percent | 12.70% | 18.30%

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