Condensed Consolidated Statements of Operations and Comprehensive Income - Piedmont - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating Revenues	$ 6,685	$ 5,758	$ 13,817	$ 11,908
Operating Expenses
Operation, maintenance and other	1,447	1,410	3,077	2,812
Depreciation and amortization	1,302	1,207	2,622	2,433
Property and other taxes	379	349	771	702
Impairment of assets and other charges	(9)	131	206	131
Total operating expenses	5,280	4,591	11,135	9,291
Gains on Sales of Other Assets and Other, net	8	2	10	2
Operating Income	1,413	1,169	2,692	2,619
Total other income and expenses	151	137	265	247
Interest Expense	607	572	1,194	1,107
Income Before Income Taxes	957	734	1,763	1,759
Income Tax Expense	77	36	63	120
Comprehensive Income	1,038	677	1,994	1,688
Net Income Attributable to Duke Energy Corporation	907	765	1,764	1,757
Piedmont
Operating Revenues	310	215	1,115	821
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas	143	63	517	288
Operation, maintenance and other	88	76	183	154
Depreciation and amortization	56	51	110	99
Property and other taxes	15	14	31	28
Impairment of assets and other charges		5		5
Total operating expenses	302	209	841	574
Gains on Sales of Other Assets and Other, net	4	0	4	0
Operating Income	12	6	278	247
Total other income and expenses	15	18	28	35
Interest Expense	34	30	66	59
Income Before Income Taxes	(7)	(6)	240	223
Income Tax Expense	(6)	(2)	27	24
Comprehensive Income	(1)	(4)	213	199
Net Income Attributable to Duke Energy Corporation	$ (1)	$ (4)	$ 213	$ 199