v3.25.2
Revenue Recognition - Schedule of Contract With Customers (Details)
$ in Millions
6 Months Ended
Jun. 30, 2025
USD ($)
Accounts Receivable  
Opening balance as of December 31, 2024 $ 666
Closing balance as of June 30, 2025 636
Increase (decrease) in accounts receivable (30)
Accrued Unbilled Revenues  
Opening balance as of December 31, 2024 521
Closing balance as of June 30, 2025 342
Increase (decrease) in other accrued unbilled revenues (179)
Houston Electric  
Accounts Receivable  
Opening balance as of December 31, 2024 284
Closing balance as of June 30, 2025 323
Increase (decrease) in accounts receivable 39
Accrued Unbilled Revenues  
Opening balance as of December 31, 2024 137
Closing balance as of June 30, 2025 165
Increase (decrease) in other accrued unbilled revenues 28
CERC  
Accounts Receivable  
Opening balance as of December 31, 2024 326
Closing balance as of June 30, 2025 259
Increase (decrease) in accounts receivable (67)
Accrued Unbilled Revenues  
Opening balance as of December 31, 2024 338
Closing balance as of June 30, 2025 121
Increase (decrease) in other accrued unbilled revenues $ (217)