Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating Revenues
Regulated electric	$ 6,074	$ 5,258	$ 12,007	$ 10,477
Regulated natural gas	425	302	1,427	1,051
Nonregulated electric and other	186	198	383	380
Total 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
Other Income and Expenses
Equity in earnings (losses) of unconsolidated affiliates	36	9	61	(8)
Other income and expenses, net	115	128	204	255
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
Net Income	880	698	1,700	1,639
Add: Net Loss Attributable to Noncontrolling Interests	27	67	64	118
Net Income Attributable to Duke Energy Corporation	907	765	1,764	1,757
Less: Preferred Dividends	14	14	53	53
Net Income Available to Duke Energy Corporation Common Stockholders	$ 893	$ 751	$ 1,711	$ 1,704
Net income available to Duke Energy Corporation common stockholders
Basic (in usd per share)	$ 1.14	$ 0.96	$ 2.22	$ 2.21
Diluted (in usd per share)	$ 1.14	$ 0.96	$ 2.22	$ 2.21
Weighted Average Shares Outstanding
Basic (in shares)	770	769	770	769
Diluted (in shares)	770	769	770	769
Fuel used in electric generation and purchased power
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas	$ 1,972	$ 1,415	$ 3,789	$ 2,858
Cost of natural gas
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas	$ 189	$ 79	$ 670	$ 355