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Condensed Consolidated Statements of Operations and Comprehensive Income - Duke Energy Florida - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Operating Revenues $ 8,542 $ 8,154 $ 24,299 $ 22,997
Operating Expenses        
Operation, maintenance and other 1,762 1,409 4,916 4,108
Depreciation and amortization 1,626 1,516 4,721 4,312
Property and other taxes 438 383 1,281 1,162
Total operating expenses 6,225 6,017 17,829 17,208
Gain (Loss) on Sales of Other Assets and Other, net 17 7 37 25
Operating (Loss) Income 2,334 2,144 6,507 5,814
Other Income and Expenses, net 198 181 535 555
Interest Expense 902 872 2,688 2,513
Income From Continuing Operations Before Income Taxes 1,630 1,453 4,354 3,856
Income Tax Expense 176 163 488 481
Net Income 1,421 1,281 3,784 3,319
Comprehensive Income 1,396 1,227 3,734 3,373
Duke Energy Florida        
Operating Revenues 2,157 1,940 5,486 5,092
Operating Expenses        
Cost of sales 546 705 1,378 1,833
Operation, maintenance and other 579 272 1,365 779
Depreciation and amortization 297 286 861 796
Property and other taxes 147 127 389 350
Total operating expenses 1,569 1,390 3,993 3,758
Gain (Loss) on Sales of Other Assets and Other, net 1 1 2 2
Operating (Loss) Income 589 551 1,495 1,336
Other Income and Expenses, net 22 21 67 67
Interest Expense 118 114 352 339
Income From Continuing Operations Before Income Taxes 493 458 1,210 1,064
Income Tax Expense 96 94 235 212
Net Income 397 364 975 852
Unrealized gains (losses) on available-for-sale securities 0 0 (1) 0
Comprehensive Income $ 397 $ 364 $ 974 $ 852