Condensed Consolidated Balance Sheets (Unaudited) - Houston Electric (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Cash and cash equivalents	$ 114	$ 74
Accounts receivable, less allowance for credit losses	874	889
Allowance for credit losses	43	38
Prepaid expenses and other current assets	147	171
Regulatory assets	2,499	2,193
Houston Electric
Cash and cash equivalents	112	75
Accounts receivable, less allowance for credit losses	278	311
Allowance for credit losses	1	1
Prepaid expenses and other current assets	36	41
Regulatory assets	818	778
Variable Interest Entity, Primary Beneficiary
Cash and cash equivalents	110	75
Accounts receivable, less allowance for credit losses	18	22
Prepaid expenses and other current assets	12	13
Regulatory assets	199	229
Variable Interest Entity, Primary Beneficiary | Houston Electric
Cash and cash equivalents	110	75
Accounts receivable, less allowance for credit losses	18	22
Prepaid expenses and other current assets	12	13
Regulatory assets	$ 199	$ 229