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Condensed Consolidated Statements of Operations and Comprehensive Income - Duke Energy Ohio - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Regulated electric $ 6,732 $ 6,324
Regulated natural gas 866 882
Total operating revenues 7,671 7,276
Operating Expenses    
Operation, maintenance and other 1,379 1,310
Depreciation and amortization 1,387 1,227
Property and other taxes 386 389
Total operating expenses 5,720 5,609
Operating Income 1,963 1,674
Other Income and Expenses, net 186 171
Interest Expense 817 720
Income From Continuing Operations Before Income Taxes 1,332 1,125
Income Tax Expense From Continuing Operations 178 155
Comprehensive Income Attributable to Duke Energy 1,253 778
Net Income Attributable to Duke Energy Corporation 1,138 804
Fuel used in electric generation and purchased power    
Operating Expenses    
Cost of sales 2,335 2,377
Cost of natural gas    
Operating Expenses    
Cost of sales 232 298
Duke Energy Ohio    
Regulated electric 458 474
Regulated natural gas 220 235
Total operating revenues 678 709
Operating Expenses    
Operation, maintenance and other 126 123
Depreciation and amortization 99 90
Property and other taxes 102 80
Total operating expenses 526 561
Operating Income 152 148
Other Income and Expenses, net 6 8
Interest Expense 45 36
Income From Continuing Operations Before Income Taxes 113 120
Income Tax Expense From Continuing Operations 19 20
Comprehensive Income Attributable to Duke Energy 94 100
Net Income Attributable to Duke Energy Corporation 94 100
Duke Energy Ohio | Fuel used in electric generation and purchased power    
Operating Expenses    
Cost of sales 138 176
Duke Energy Ohio | Cost of natural gas    
Operating Expenses    
Cost of sales $ 61 $ 92