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Condensed Statements of Consolidated Income (Unaudited) - Houston Electric - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Revenues $ 1,860 $ 1,903 $ 6,514 $ 6,610
Expenses:        
Operation and maintenance 648 670 1,990 2,020
Depreciation and amortization 374 329 1,042 974
Taxes other than income taxes 127 119 395 401
Total 1,342 1,519 5,075 5,398
Operating Income 518 384 1,439 1,212
Other Income (Expense):        
Interest expense and other finance charges (176) (116) (489) (375)
Interest expense on Securitization Bonds (7) (3) (11) (11)
Other income, net 13 8 39 25
Total (168) (107) (469) 39
Income Before Income Taxes 350 277 970 1,251
Income tax expense 68 75 245 328
Net Income 282 202 725 923
Houston Electric        
Revenues 1,083 935 2,784 2,562
Expenses:        
Operation and maintenance 409 395 1,190 1,193
Depreciation and amortization 210 175 555 511
Taxes other than income taxes 70 65 201 196
Total 689 635 1,946 1,900
Operating Income 394 300 838 662
Other Income (Expense):        
Interest expense and other finance charges (69) (50) (185) (148)
Interest expense on Securitization Bonds (2) (3) (6) (11)
Other income, net 5 5 22 13
Total (66) (48) (169) (146)
Income Before Income Taxes 328 252 669 516
Income tax expense 72 52 147 108
Net Income $ 256 $ 200 $ 522 $ 408