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Condensed Statements of Consolidated Income (Unaudited) - Houston Electric - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Revenues $ 1,856 $ 1,860 $ 6,381 $ 6,514
Expenses:        
Operation and maintenance 775 648 2,162 1,990
Depreciation and amortization 334 374 1,083 1,042
Taxes other than income taxes 125 127 410 395
Total 1,432 1,342 4,874 5,075
Operating Income 424 518 1,507 1,439
Other Income (Expense):        
Interest expense and other finance charges (191) (176) (601) (489)
Interest expense on Securitization Bonds (4) (7) (15) (11)
Other income, net 15 13 39 39
Total (179) (168) (573) (469)
Income Before Income Taxes 245 350 934 970
Income tax expense 52 68 163 245
Net Income 193 282 771 725
Houston Electric        
Revenues 1,058 1,083 3,003 2,784
Expenses:        
Operation and maintenance 533 409 1,426 1,190
Depreciation and amortization 171 210 580 555
Taxes other than income taxes 71 70 221 201
Total 775 689 2,227 1,946
Operating Income 283 394 776 838
Other Income (Expense):        
Interest expense and other finance charges (74) (69) (229) (185)
Interest expense on Securitization Bonds (1) (2) (3) (6)
Other income, net 12 5 33 22
Total (63) (66) (199) (169)
Income Before Income Taxes 220 328 577 669
Income tax expense 41 72 112 147
Net Income $ 179 $ 256 $ 465 $ 522