Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

Schedule of Reserves

The following table contains information regarding reserves for probable and estimable costs related to the various environmental sites. These reserves are recorded in Other within Other Noncurrent Liabilities on the Condensed Consolidated Balance Sheets.

(in millions)	September 30, 2023		December 31, 2022
Reserves for Environmental Remediation
Duke Energy	$	90	$	84
Duke Energy Carolinas	24		22
Progress Energy	20		19
Duke Energy Progress	10		8
Duke Energy Florida	10		11
Duke Energy Ohio	36		33
Duke Energy Indiana	2		3
Piedmont	7		7