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Income Taxes | 6 Months Ended
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Jun. 30, 2023
Income Tax Disclosure [Abstract] |
Income Taxes | INCOME TAXES EFFECTIVE TAX RATES The ETRs from continuing operations for each of the Duke Energy Registrants are included in the following table.
| Three Months Ended |  | Six Months Ended
| June 30, |  | June 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Duke Energy | 13.7 | % |  | 11.3 | % |  | 13.7 | % |  | 7.4 | %
Duke Energy Carolinas | 10.6 | % |  | 7.3 | % |  | 11.0 | % |  | 7.4 | %
Progress Energy | 16.7 | % |  | 16.8 | % |  | 16.7 | % |  | 16.4 | %
Duke Energy Progress | 14.1 | % |  | 13.8 | % |  | 14.4 | % |  | 13.9 | %
Duke Energy Florida | 19.9 | % |  | 20.2 | % |  | 19.9 | % |  | 20.1 | %
Duke Energy Ohio | 15.5 | % |  | 13.8 | % |  | 16.2 | % |  | (54.7) | %
Duke Energy Indiana | 17.4 | % |  | 8.6 | % |  | 17.3 | % |  | (48.9) | %
Piedmont | 25.0 | % |  | 85.7 | % |  | 17.8 | % |  | 11.3 | %
The increase in the ETR for Duke Energy for the three and six months ended June 30, 2023, was primarily due to a decrease in the amortization of excess deferred taxes. The increase in the ETR for Duke Energy Carolinas for the three and six months ended June 30, 2023, was primarily due to a decrease in the amortization of excess deferred taxes. The increase in the ETR for Duke Energy Ohio for the three months ended June 30, 2023, was primarily due to the amortization of excess deferred taxes in relation to higher pretax income. The increase in the ETR for Duke Energy Ohio for the six months ended June 30, 2023, was primarily due to a decrease in the amortization of excess deferred taxes related to the MGP Settlement recorded in the prior year. The increase in the ETR for Duke Energy Indiana for the three months ended June 30, 2023, was primarily d ue to a decrease i n the amortization of excess deferred taxes related to the coal ash impairment based on the Indiana Supreme Court Opinion recorded in the prior year. The increase in the ETR for Duke Energy Indiana for the six months ended June 30, 2023, was primarily due to the coal ash impairment based on the Indiana Supreme Court Opinion and the associated amortization of excess deferred taxes recorded in the prior year. The decrease in the ETR for Piedmont for the three months ended June 30, 2023, was primarily due to certain favorable tax credits recorded in the prior year, in relation to pretax losses. The increase in the ETR for Piedmont for the six months ended June 30, 2023, was primarily due to a decrease in the amortization of excess deferred taxes and certain favorable tax credits recorded in the prior year.

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