Income Taxes (Tables)

6 Months Ended

Jun. 30, 2017

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				Six Months Ended
	June 30,				June 30,
	2017		2016		2017		2016
Duke Energy	32.1	%	28.8	%	32.3	%	29.6	%
Duke Energy Carolinas	34.7	%	35.1	%	35.0	%	34.6	%
Progress Energy	33.4	%	36.0	%	33.7	%	36.3	%
Duke Energy Progress	31.9	%	35.5	%	33.0	%	35.4	%
Duke Energy Florida	36.8	%	37.6	%	36.7	%	37.7	%
Duke Energy Ohio	34.8	%	34.3	%	35.1	%	29.2	%
Duke Energy Indiana	39.4	%	36.1	%	39.4	%	33.1	%
Piedmont	38.5	%	40.0	%	37.9	%	38.0	%