Income Taxes (Tables)

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Summary of Effective Tax Rates

The effective tax rates from continuing operations for each of the Duke Energy Registrants are included in the following table.

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Duke Energy	13.7	%	27.6	%	17.0	%	30.4	%
Duke Energy Carolinas	22.6	%	32.9	%	22.3	%	34.1	%
Progress Energy	18.8	%	29.1	%	17.0	%	31.9	%
Duke Energy Progress	20.6	%	31.7	%	18.4	%	32.4	%
Duke Energy Florida	15.0	%	34.8	%	16.3	%	36.1	%
Duke Energy Ohio	16.0	%	33.3	%	16.0	%	34.4	%
Duke Energy Indiana	22.7	%	38.3	%	24.7	%	39.0	%
Piedmont	34.4	%	47.6	%	20.6	%	36.1	%