Condensed Consolidated Statements of Operations and Comprehensive Income - Piedmont - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Regulated natural gas	$ 2,252	$ 2,152	$ 2,724
Nonregulated electric and other	318	291	285
Total operating revenues	30,357	29,060	28,768
Operating Expenses
Operation, maintenance and other	5,389	5,625	5,734
Depreciation and amortization	5,793	5,253	5,086
Property and other taxes	1,466	1,400	1,466
Impairment of assets and other charges	38	85	434
Total operating expenses	22,457	22,042	22,778
Gains on Sales of Other Assets and Other, net	26	52	22
Operating Income	7,926	7,070	6,012
Equity in (losses) earnings of unconsolidated affiliates	(9)	113	113
Other income and expenses, net	661	598	392
Total other income and expenses	652	711	505
Interest Expense	3,384	3,014	2,439
Income From Continuing Operations Before Income Taxes	5,194	4,767	4,078
Income Tax Expense From Continuing Operations	590	438	300
Net Income Attributable to Duke Energy Corporation	4,524	2,841	2,550
Comprehensive Income Attributable to Duke Energy Corporation	4,758	2,975	2,713
Piedmont
Regulated natural gas	1,702	1,603	2,100
Nonregulated electric and other	27	25	24
Total operating revenues	1,729	1,628	2,124
Operating Expenses
Cost of natural gas	423	430	1,015
Operation, maintenance and other	359	344	368
Depreciation and amortization	261	237	222
Property and other taxes	55	59	57
Impairment of assets and other charges	0	(4)	18
Total operating expenses	1,098	1,066	1,680
Gains on Sales of Other Assets and Other, net	0	0	4
Operating Income	631	562	448
Equity in (losses) earnings of unconsolidated affiliates	8	9	8
Other income and expenses, net	54	57	46
Total other income and expenses	62	66	54
Interest Expense	185	165	140
Income From Continuing Operations Before Income Taxes	508	463	362
Income Tax Expense From Continuing Operations	95	84	39
Net Income Attributable to Duke Energy Corporation	413	379	323
Comprehensive Income Attributable to Duke Energy Corporation	$ 413	$ 379	$ 323