Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Revenues
Regulated electric		$ 25,759	$ 22,319	$ 21,461
Regulated natural gas		2,724	2,008	1,642
Nonregulated electric and other		285	294	263
Total operating revenues		28,768	24,621	23,366
Operating Expenses
Operation, maintenance and other		5,734	5,703	5,502
Depreciation and amortization		5,086	4,762	4,504
Property and other taxes		1,466	1,355	1,311
Impairment of assets and other charges		434	353	978
Total operating expenses		22,778	19,133	18,806
Gains on Sales of Other Assets and Other, net		22	12	11
Operating Income		6,012	5,500	4,571
Other Income and Expenses
Equity in earnings (losses) of unconsolidated affiliates		113	62	(2,005)
Other income and expenses, net		392	636	451
Total other income and expenses		505	698	(1,554)
Interest Expense		2,439	2,207	2,097
Income From Continuing Operations Before Income Taxes		4,078	3,991	920
Income Tax Expense (Benefit) From Continuing Operations		300	268	(169)
Income From Continuing Operations		3,778	3,723	1,089
Loss From Discontinued Operations, net of tax		(1,323)	(144)	(7)
Net Income		2,455	3,579	1,082
Add: Net Loss Attributable to Noncontrolling Interests		95	329	295
Net Income Attributable to Parent		2,550	3,908	1,377
Less: Preferred Dividends		106	106	107
Net Income Available to Common Stockholders		2,444	3,802	1,270
Other Comprehensive Income, net of tax
Pension and OPEB adjustments	[1]	(19)	7	6
Net unrealized gain on cash flow hedges	[1]	285	(68)	(138)
Unrealized (losses) gains on available-for-sale securities	[1]	(21)	(8)	3
Other Comprehensive Income (Loss), net of tax	[1]	174	(56)	(118)
Comprehensive Income		2,629	3,523	964
Add: Comprehensive Loss Attributable to Noncontrolling Interests		(84)	(319)	(306)
Comprehensive Income Attributable to Duke Energy Corporation		$ 2,713	$ 3,842	$ 1,270
Income from continuing operations available to Duke Energy Corporation common stockholders
Basic (usd per share)		$ 4.74	$ 4.68	$ 1.33
Diluted (usd per share)		4.74	4.68	1.33
(Loss) Income from discontinued operations attributable to Duke Energy Corporation common stockholders
Basic (usd per share)		(1.57)	0.26	0.39
Diluted (usd per share)		(1.57)	0.26	0.39
Net income available to Duke Energy Corporation common stockholders
Basic (usd per share)		3.17	4.94	1.72
Diluted (usd per share)		$ 3.17	$ 4.94	$ 1.72
Weighted average shares outstanding
Basic (in shares)		770	769	737
Diluted (in shares)		770	769	738
Fuel used in electric generation and purchased power
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas		$ 8,782	$ 6,255	$ 6,051
Cost of natural gas
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas		1,276	705	460
Duke Energy Carolinas
Operating Revenues
Total operating revenues		7,857	7,102	7,015
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas		2,015	1,601	1,682
Operation, maintenance and other		1,892	1,833	1,743
Depreciation and amortization		1,526	1,468	1,462
Property and other taxes		340	320	299
Impairment of assets and other charges		26	227	476
Total operating expenses		5,799	5,449	5,662
Gains on Sales of Other Assets and Other, net		4	2	1
Operating Income		2,062	1,655	1,354
Other Income and Expenses
Other income and expenses, net		221	270	177
Total other income and expenses		221	270	177
Interest Expense		557	538	487
Income From Continuing Operations Before Income Taxes		1,726	1,387	1,044
Income Tax Expense (Benefit) From Continuing Operations		126	51	88
Net Income Attributable to Parent		1,600	1,336	956
Other Comprehensive Income, net of tax
Net unrealized gain on cash flow hedges			1
Other Comprehensive Income (Loss), net of tax			1
Comprehensive Income Attributable to Duke Energy Corporation		1,600	1,337	956
Progress Energy
Operating Revenues
Total operating revenues		13,125	11,057	10,627
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas		5,078	3,584	3,479
Operation, maintenance and other		2,458	2,529	2,479
Depreciation and amortization		2,142	1,929	1,818
Property and other taxes		607	542	545
Impairment of assets and other charges		12	82	495
Total operating expenses		10,297	8,666	8,816
Gains on Sales of Other Assets and Other, net		11	14	9
Operating Income		2,839	2,405	1,820
Other Income and Expenses
Other income and expenses, net		181	215	129
Total other income and expenses		181	215	129
Interest Expense		844	794	790
Income Before Income Taxes		2,176	1,826	1,159
Income Tax Expense (Benefit) From Continuing Operations		348	227	113
Net Income		1,828	1,599	1,046
Add: Net Loss Attributable to Noncontrolling Interests			(1)	(1)
Net Income Attributable to Parent		1,828	1,598	1,045
Other Comprehensive Income, net of tax
Pension and OPEB adjustments		5	1	(1)
Net unrealized gain on cash flow hedges		1	3	5
Unrealized (losses) gains on available-for-sale securities		(6)		(1)
Other Comprehensive Income (Loss), net of tax		0	4	3
Comprehensive Income		1,828	1,603	1,049
Add: Comprehensive Loss Attributable to Noncontrolling Interests			1	1
Comprehensive Income Attributable to Duke Energy Corporation		1,828	1,602	1,048
Duke Energy Progress
Operating Revenues
Total operating revenues		6,753	5,780	5,422
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas		2,492	1,778	1,743
Operation, maintenance and other		1,475	1,467	1,332
Depreciation and amortization		1,187	1,097	1,116
Property and other taxes		190	159	167
Impairment of assets and other charges		7	63	499
Total operating expenses		5,351	4,564	4,857
Gains on Sales of Other Assets and Other, net		4	13	8
Operating Income		1,406	1,229	573
Other Income and Expenses
Other income and expenses, net		114	143	75
Total other income and expenses		114	143	75
Interest Expense		354	306	269
Income From Continuing Operations Before Income Taxes		1,166	1,066	379
Income Tax Expense (Benefit) From Continuing Operations		158	75	(36)
Net Income Attributable to Parent		1,008	991	415
Other Comprehensive Income, net of tax
Comprehensive Income Attributable to Duke Energy Corporation		1,008	991	415
Duke Energy Florida
Operating Revenues
Total operating revenues		6,353	5,259	5,188
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas		2,586	1,806	1,737
Operation, maintenance and other		967	1,048	1,131
Depreciation and amortization		955	831	702
Property and other taxes		421	383	381
Impairment of assets and other charges		4	19	(4)
Total operating expenses		4,933	4,087	3,947
Gains on Sales of Other Assets and Other, net		2	1	1
Operating Income		1,422	1,173	1,242
Other Income and Expenses
Other income and expenses, net		74	71	53
Total other income and expenses		74	71	53
Interest Expense		362	319	326
Income From Continuing Operations Before Income Taxes		1,134	925	969
Income Tax Expense (Benefit) From Continuing Operations		225	187	198
Net Income Attributable to Parent		909	738	771
Other Comprehensive Income, net of tax
Unrealized (losses) gains on available-for-sale securities		(5)	(1)	(1)
Other Comprehensive Income (Loss), net of tax		(5)	(1)	(1)
Comprehensive Income Attributable to Duke Energy Corporation		904	737	770
Duke Energy Ohio
Operating Revenues
Regulated electric		1,798	1,493	1,405
Regulated natural gas		716	544	453
Total operating revenues		2,514	2,037	1,858
Operating Expenses
Operation, maintenance and other		523	479	463
Depreciation and amortization		324	307	278
Property and other taxes		369	355	324
Impairment of assets and other charges		(10)	25
Total operating expenses		2,124	1,711	1,477
Gains on Sales of Other Assets and Other, net		1	1
Operating Income		391	327	381
Other Income and Expenses
Other income and expenses, net		19	18	16
Total other income and expenses		19	18	16
Interest Expense		129	111	102
Income From Continuing Operations Before Income Taxes		281	234	295
Income Tax Expense (Benefit) From Continuing Operations		(21)	30	43
Net Income Attributable to Parent		302	204	252
Other Comprehensive Income, net of tax
Comprehensive Income Attributable to Duke Energy Corporation		302	204	252
Duke Energy Ohio | Fuel used in electric generation and purchased power
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas		657	409	339
Duke Energy Ohio | Cost of natural gas
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas		261	136	73
Duke Energy Indiana
Operating Revenues
Total operating revenues		3,922	3,174	2,795
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas		1,819	985	767
Operation, maintenance and other		729	750	762
Depreciation and amortization		645	615	569
Property and other taxes		75	73	81
Impairment of assets and other charges		388	9
Total operating expenses		3,656	2,432	2,179
Operating Income		266	742	616
Other Income and Expenses
Other income and expenses, net		36	42	37
Total other income and expenses		36	42	37
Interest Expense		189	196	161
Income From Continuing Operations Before Income Taxes		113	588	492
Income Tax Expense (Benefit) From Continuing Operations		(24)	107	84
Net Income Attributable to Parent		137	481	408
Other Comprehensive Income, net of tax
Comprehensive Income Attributable to Duke Energy Corporation		137	481	408
Piedmont
Operating Revenues
Regulated natural gas		2,100	1,555	1,286
Nonregulated electric and other		24	14	11
Total operating revenues		2,124	1,569	1,297
Operating Expenses
Fuel used in electric generation and purchased power/Cost of natural gas		1,015	569	386
Operation, maintenance and other		368	327	322
Depreciation and amortization		222	213	180
Property and other taxes		57	55	53
Impairment of assets and other charges		18	10	7
Total operating expenses		1,680	1,174	948
Gains on Sales of Other Assets and Other, net		4	0	0
Operating Income		448	395	349
Other Income and Expenses
Equity in earnings (losses) of unconsolidated affiliates		8	9	9
Other income and expenses, net		46	55	51
Total other income and expenses		54	64	60
Interest Expense		140	119	118
Income From Continuing Operations Before Income Taxes		362	340	291
Income Tax Expense (Benefit) From Continuing Operations		39	30	18
Net Income		323	310	273
Net Income Attributable to Parent		323	310	273
Other Comprehensive Income, net of tax
Comprehensive Income Attributable to Duke Energy Corporation		$ 323	$ 310	$ 273

[1] Net of income tax expense of approximately $52 million for the year ended December 31, 2022, and income tax benefit of approximately $17 million and $35 million for the years ended December 31, 2021, and 2020, respectively.