Condensed Consolidated Statements of Operations and Comprehensive Income - Duke Energy Ohio - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Regulated electric	$ 7,640	$ 7,373	$ 20,140	$ 19,381
Regulated natural gas	284	397	1,497	1,824
Total operating revenues	7,994	7,842	21,848	21,417
Operating Expenses
Operation, maintenance and other	1,428	1,308	4,113	4,223
Depreciation and amortization	1,353	1,299	3,913	3,793
Property and other taxes	394	368	1,136	1,118
Total operating expenses	5,891	5,792	16,679	16,616
Gains on Sales of Other Assets and Other, net	8	6	46	17
Operating Income	2,111	2,056	5,215	4,818
Other Income and Expenses, net	178	115	516	382
Interest Expense	774	603	2,221	1,760
Income From Continuing Operations Before Income Taxes	1,515	1,568	3,510	3,440
Income Tax Expense From Continuing Operations	42	158	316	297
Comprehensive Income Attributable to Duke Energy	1,484	1,417	2,097	3,411
Net Income Attributable to Duke Energy Corporation	1,252	1,422	1,836	3,186
Fuel used in electric generation and purchased power
Operating Expenses
Cost of sales	2,571	2,632	6,987	6,421
Cost of natural gas
Operating Expenses
Cost of sales	57	189	434	859
Duke Energy Ohio
Regulated electric	472	507	1,411	1,320
Regulated natural gas	105	121	464	491
Total operating revenues	577	628	1,875	1,811
Operating Expenses
Operation, maintenance and other	114	121	358	408
Depreciation and amortization	90	84	266	247
Property and other taxes	94	79	258	272
Total operating expenses	449	479	1,485	1,529
Gains on Sales of Other Assets and Other, net		(1)
Operating Income	128	148	390	282
Other Income and Expenses, net	12	4	33	16
Interest Expense	46	32	125	92
Income From Continuing Operations Before Income Taxes	94	120	298	206
Income Tax Expense From Continuing Operations	14	17	47	(30)
Comprehensive Income Attributable to Duke Energy	80	103	251	236
Net Income Attributable to Duke Energy Corporation	80	103	251	236
Duke Energy Ohio | Fuel used in electric generation and purchased power
Operating Expenses
Cost of sales	145	185	485	439
Duke Energy Ohio | Cost of natural gas
Operating Expenses
Cost of sales	$ 6	$ 21	$ 118	$ 174