Condensed Consolidated Statements of Operations and Comprehensive Income - Duke Energy Ohio - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Regulated electric	$ 26,617	$ 25,759	$ 22,319
Regulated natural gas	2,152	2,724	2,008
Total operating revenues	29,060	28,768	24,621
Operating Expenses
Operation, maintenance and other	5,625	5,734	5,703
Depreciation and amortization	5,253	5,086	4,762
Property and other taxes	1,400	1,466	1,355
Impairment of assets and other charges	85	434	353
Total operating expenses	22,042	22,778	19,133
Gains on Sales of Other Assets and Other, net	52	22	12
Operating Income	7,070	6,012	5,500
Other Income and Expenses, net	711	505	698
Interest Expense	3,014	2,439	2,207
Income From Continuing Operations Before Income Taxes	4,767	4,078	3,991
Income Tax Expense From Continuing Operations	438	300	268
Comprehensive Income Attributable to Duke Energy Corporation	2,975	2,713	3,842
Net Income Attributable to Duke Energy Corporation	2,841	2,550	3,908
Fuel used in electric generation and purchased power
Operating Expenses
Cost of sales	9,086	8,782	6,255
Cost of natural gas
Operating Expenses
Cost of sales	593	1,276	705
Duke Energy Ohio
Regulated electric	1,868	1,798	1,493
Regulated natural gas	639	716	544
Total operating revenues	2,507	2,514	2,037
Operating Expenses
Operation, maintenance and other	478	523	479
Depreciation and amortization	367	324	307
Property and other taxes	364	369	355
Impairment of assets and other charges	3	(10)	25
Total operating expenses	1,983	2,124	1,711
Gains on Sales of Other Assets and Other, net	1	1	1
Operating Income	525	391	327
Other Income and Expenses, net	41	19	18
Interest Expense	169	129	111
Income From Continuing Operations Before Income Taxes	397	281	234
Income Tax Expense From Continuing Operations	63	(21)	30
Comprehensive Income Attributable to Duke Energy Corporation	334	302	204
Net Income Attributable to Duke Energy Corporation	334	302	204
Duke Energy Ohio | Fuel used in electric generation and purchased power
Operating Expenses
Cost of sales	608	657	409
Duke Energy Ohio | Cost of natural gas
Operating Expenses
Cost of sales	$ 163	$ 261	$ 136