Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Operating Revenues
Regulated electric		$ 6,176	$ 6,075	$ 12,500	$ 12,008
Regulated natural gas		331	425	1,213	1,427
Nonregulated electric and other		71	64	141	140
Total operating revenues		6,578	6,564	13,854	13,575
Operating Expenses
Operation, maintenance and other		1,375	1,367	2,685	2,915
Depreciation and amortization		1,333	1,237	2,560	2,494
Property and other taxes		353	368	742	750
Impairment of assets and other charges				1,442	206
Impairment of assets and other charges			(9)	8	206
Total operating expenses		5,179	5,124	10,788	10,824
Gains on Sales of Other Assets and Other, net		31	8	38	11
Operating Income		1,430	1,448	3,104	2,762
Other Income and Expenses
Equity in earnings of unconsolidated affiliates		20	38	40	64
Other income and expenses, net		147	114	298	203
Total other income and expenses		167	152	338	267
Interest Expense		727	588	1,447	1,157
Income From Continuing Operations Before Income Taxes		870	1,012	1,995	1,872
Income Tax Expense From Continuing Operations		119	114	274	139
Income From Continuing Operations		751	898	1,721	1,733
Loss from discontinued operations, net of tax		(955)	(18)	(1,164)	(33)
Net (Loss) Income		(204)	880	557	1,700
Add: Net (Income) Loss Attributable to Noncontrolling Interests		(16)	27	27	64
Net Income (loss) Attributable to Parent		(220)	907	584	1,764
Less: Preferred Dividends		14	14	53	53
Net Income Available to Common Stockholders		(234)	893	531	1,711
Other Comprehensive Income, net of tax
Pension and OPEB adjustments	[1]	1	2		4
Net unrealized gain on cash flow hedges	[1]	26	149	6	262
Unrealized (losses) gains on available-for-sale securities	[1]	(2)	(8)	4	(21)
Other Comprehensive Income (Loss), net of tax	[1]	55	135	29	242
Comprehensive (Loss) Income		(149)	1,015	586	1,942
Add: Comprehensive Loss Attributable to Noncontrolling Interests		16	(23)	(27)	(52)
Comprehensive Income Attributable to Duke Energy Corporation		$ (165)	$ 1,038	$ 613	$ 1,994
Income from continuing operations available to Duke Energy Corporation common stockholders
Basic (in usd per share)		$ 0.91	$ 1.11	$ 2.10	$ 2.17
Diluted (in usd per share)		0.91	1.11	2.10	2.17
(Loss) Income from discontinued operations attributable to Duke Energy Corporation common stockholders
Basic (in usd per share)		(1.23)	0.03	(1.41)	0.05
Diluted (in usd per share)		(1.23)	0.03	(1.41)	0.05
Net (loss) income available to Duke Energy Corporation common stockholders
Basic (in usd per share)		(0.32)	1.14	0.69	2.22
Diluted (in usd per share)		$ (0.32)	$ 1.14	$ 0.69	$ 2.22
Weighted average shares outstanding
Basic (in shares)		771	770	770	770
Diluted (in shares)		771	770	770	770
Fuel used in electric generation and purchased power
Operating Expenses
Cost of sales		$ 2,039	$ 1,972	$ 4,416	$ 3,789
Cost of natural gas
Operating Expenses
Cost of sales		79	189	377	670
Duke Energy Carolinas
Operating Revenues
Total operating revenues		1,828	1,781	3,762	3,669
Operating Expenses
Cost of sales		510	431	1,133	879
Operation, maintenance and other		421	462	861	974
Depreciation and amortization		413	384	779	763
Property and other taxes		91	77	186	170
Impairment of assets and other charges		4	(12)	6	(9)
Total operating expenses		1,439	1,342	2,965	2,777
Gains on Sales of Other Assets and Other, net		26		26
Operating Income		415	439	823	892
Other Income and Expenses
Total other income and expenses		59	58	118	113
Interest Expense		172	143	332	284
Income From Continuing Operations Before Income Taxes		302	354	609	721
Income Tax Expense From Continuing Operations		32	26	67	53
Net Income (loss) Attributable to Parent		270	328	542	668
Other Comprehensive Income, net of tax
Comprehensive Income Attributable to Duke Energy Corporation		270	328	542	668
Progress Energy
Operating Revenues
Total operating revenues		3,212	3,214	6,260	6,206
Operating Expenses
Cost of sales		1,176	1,258	2,367	2,322
Operation, maintenance and other		684	603	1,252	1,248
Depreciation and amortization		542	509	1,046	1,045
Property and other taxes		173	151	341	303
Impairment of assets and other charges			4	5	4
Total operating expenses		2,575	2,525	5,011	4,922
Gains on Sales of Other Assets and Other, net		6	1	12	3
Operating Income		643	690	1,261	1,287
Other Income and Expenses
Total other income and expenses		38	70	97	105
Interest Expense		219	208	465	419
Income From Continuing Operations Before Income Taxes		462	552	893	973
Income Tax Expense From Continuing Operations		77	93	149	160
Net (Loss) Income		385	459	744	813
Other Comprehensive Income, net of tax
Net unrealized gain on cash flow hedges					1
Unrealized (losses) gains on available-for-sale securities			(1)	2	(3)
Other Comprehensive Income (Loss), net of tax			(1)	2	(2)
Comprehensive (Loss) Income		385	458	746	811
Duke Energy Progress
Operating Revenues
Total operating revenues		1,425	1,581	2,958	3,213
Operating Expenses
Cost of sales		489	593	1,034	1,167
Operation, maintenance and other		356	360	706	751
Depreciation and amortization		296	271	611	577
Property and other taxes		47	41	95	90
Impairment of assets and other charges		3	4	7	4
Total operating expenses		1,191	1,269	2,453	2,589
Gains on Sales of Other Assets and Other, net		1		1	1
Operating Income		235	312	506	625
Other Income and Expenses
Total other income and expenses		32	32	61	54
Interest Expense		104	90	206	175
Income From Continuing Operations Before Income Taxes		163	254	361	504
Income Tax Expense From Continuing Operations		23	35	52	70
Net Income (loss) Attributable to Parent		140	219	309	434
Other Comprehensive Income, net of tax
Comprehensive Income Attributable to Duke Energy Corporation		140	219	309	434
Duke Energy Florida
Operating Revenues
Total operating revenues		1,782	1,628	3,292	2,983
Operating Expenses
Cost of sales		687	665	1,333	1,155
Operation, maintenance and other		324	241	537	490
Depreciation and amortization		245	237	435	468
Property and other taxes		126	109	246	212
Impairment of assets and other charges		(2)		(1)
Total operating expenses		1,380	1,252	2,550	2,325
Gains on Sales of Other Assets and Other, net			1	1	2
Operating Income		402	377	743	660
Other Income and Expenses
Total other income and expenses		7	40	37	55
Interest Expense		87	90	202	174
Income From Continuing Operations Before Income Taxes		322	327	578	541
Income Tax Expense From Continuing Operations		64	66	115	109
Net Income (loss) Attributable to Parent		258	261	463	432
Other Comprehensive Income, net of tax
Unrealized (losses) gains on available-for-sale securities			(1)	2	(2)
Other Comprehensive Income (Loss), net of tax			(1)	2	(2)
Comprehensive Income Attributable to Duke Energy Corporation		258	260	465	430
Duke Energy Ohio
Operating Revenues
Regulated electric		465	401	939	813
Regulated natural gas		124	144	359	370
Total operating revenues		589	545	1,298	1,183
Operating Expenses
Operation, maintenance and other		121	109	244	287
Depreciation and amortization		86	83	176	163
Property and other taxes		84	92	164	193
Total operating expenses		475	457	1,036	1,050
Gains on Sales of Other Assets and Other, net			1		1
Operating Income		114	89	262	134
Other Income and Expenses
Total other income and expenses		13	6	21	12
Interest Expense		43	30	79	60
Income From Continuing Operations Before Income Taxes		84	65	204	86
Income Tax Expense From Continuing Operations		13	9	33	(47)
Net Income (loss) Attributable to Parent		71	56	171	133
Other Comprehensive Income, net of tax
Comprehensive Income Attributable to Duke Energy Corporation		71	56	171	133
Duke Energy Ohio | Fuel used in electric generation and purchased power
Operating Expenses
Cost of sales		164	127	340	254
Duke Energy Ohio | Cost of natural gas
Operating Expenses
Cost of sales		20	46	112	153
Duke Energy Indiana
Operating Revenues
Total operating revenues		780	918	1,755	1,740
Operating Expenses
Cost of sales		248	359	697	678
Operation, maintenance and other		180	182	364	374
Depreciation and amortization		169	155	327	311
Property and other taxes		7	22	25	47
Impairment of assets and other charges					212
Impairment of assets and other charges					211
Total operating expenses		604	718	1,413	1,621
Operating Income		176	200	342	119
Other Income and Expenses
Total other income and expenses		14	8	28	18
Interest Expense		52	45	104	90
Income From Continuing Operations Before Income Taxes		138	163	266	47
Income Tax Expense From Continuing Operations		24	14	46	(23)
Net Income (loss) Attributable to Parent		114	149	220	70
Other Comprehensive Income, net of tax
Comprehensive Income Attributable to Duke Energy Corporation		114	149	220	70
Piedmont
Operating Revenues
Total operating revenues		236	310	911	1,115
Operating Expenses
Cost of sales		59	143	265	517
Operation, maintenance and other		82	88	171	183
Depreciation and amortization		59	56	116	110
Property and other taxes		14	15	30	31
Impairment of assets and other charges		5		4
Impairment of assets and other charges				(4)
Total operating expenses		209	302	578	841
Gains on Sales of Other Assets and Other, net		0	4		4
Operating Income		27	12	333	278
Other Income and Expenses
Total other income and expenses		16	15	32	28
Interest Expense		39	34	79	66
Income From Continuing Operations Before Income Taxes		4	(7)	286	240
Income Tax Expense From Continuing Operations		1	(6)	51	27
Net (Loss) Income		3	(1)	235	213
Net Income (loss) Attributable to Parent		3	(1)	235	213
Other Comprehensive Income, net of tax
Comprehensive Income Attributable to Duke Energy Corporation		$ 3	$ (1)	$ 235	$ 213

[1] Net of income tax expense of approximately $16 million and $40 million for the three months ended June 30, 2023, and 2022, respectively and approximately $9 million and $72 million for the six months ended June 30, 2023, and 2022, respectively.