Condensed Consolidated Statements of Operations and Comprehensive Income - Piedmont - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating Revenues	$ 7,968	$ 6,951	$ 21,785	$ 18,859
Operating Expenses
Operation, maintenance and other	1,394	1,507	4,471	4,319
Depreciation and amortization	1,364	1,265	3,986	3,698
Property and other taxes	378	371	1,149	1,073
Total operating expenses	5,950	5,273	17,085	14,564
Gains (Losses) on Sales of Other Assets and Other, net	6	9	16	11
Operating Income	2,024	1,687	4,716	4,306
Total other income and expenses	115	260	380	507
Interest Expense	621	581	1,815	1,688
Income From Continuing Operations Before Income Taxes	1,518	1,366	3,281	3,125
Income Tax Expense From Continuing Operations	128	90	191	210
Comprehensive Income	1,417	1,414	3,411	3,102
Net Income Attributable to Duke Energy Corporation	1,422	1,405	3,186	3,162
Piedmont
Operating Revenues	306	195	1,421	1,016
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas	168	66	685	354
Operation, maintenance and other	87	77	270	231
Depreciation and amortization	56	51	166	150
Property and other taxes	13	16	44	44
Impairment of assets and other charges	1	4	1	9
Total operating expenses	325	214	1,166	788
Gains (Losses) on Sales of Other Assets and Other, net	0	0	4	0
Operating Income	(19)	(19)	259	228
Total other income and expenses	13	16	41	51
Interest Expense	36	29	102	88
Income From Continuing Operations Before Income Taxes	(42)	(32)	198	191
Income Tax Expense From Continuing Operations	(9)	(8)	18	16
Comprehensive Income	(33)	(24)	180	175
Net Income Attributable to Duke Energy Corporation	$ (33)	$ (24)	$ 180	$ 175