STATEMENTS OF CONSOLIDATED CASH FLOWS - HOUSTON ELECTRIC - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities:
Net income (loss)	$ 1,057	$ 1,486	$ (773)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	1,288	1,316	1,189
Deferred income taxes	20	213	(429)
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	(461)	(98)	90
Inventory	(259)	(140)	9
Accounts payable	203	175	2
Net regulatory assets and liabilities	234	(2,295)	(107)
Other operating activities, net	79	85	35
Net cash provided by operating activities	1,810	22	1,995
Cash Flows from Investing Activities:
Capital expenditures	(4,419)	(3,164)	(2,596)
Other investing activities, net	14	15	36
Net cash used in investing activities	(1,628)	(1,851)	(1,265)
Cash Flows from Financing Activities:
Proceeds from long-term debt	2,089	4,493	799
Payments of long-term debt, including make-whole premiums	(1,795)	(2,968)	(1,724)
Payment of obligation for finance lease	(485)	(179)	0
Net cash provided by (used in) financing activities	(345)	1,916	(834)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(163)	87	(104)
Cash, Cash Equivalents and Restricted Cash at Beginning of Year	254	167	271
Cash, Cash Equivalents and Restricted Cash at End of Year	91	254	167
Houston Electric
Cash Flows from Operating Activities:
Net income (loss)	510	381	334
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	670	642	560
Deferred income taxes	86	32	(42)
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	(63)	(17)	(26)
Accounts receivable/payable–affiliated companies	47	(36)	47
Inventory	(179)	(97)	(48)
Accounts payable	(7)	66	28
Net regulatory assets and liabilities	(41)	(237)	(11)
Other current assets and liabilities	(20)	39	55
Other non-current assets and liabilities	(25)	6	4
Other operating activities, net	(12)	(9)	(2)
Net cash provided by operating activities	966	770	899
Cash Flows from Investing Activities:
Capital expenditures	(2,436)	(1,619)	(1,058)
Increase in notes receivable–affiliated companies	0	0	481
Other investing activities, net	1	2	13
Net cash used in investing activities	(2,435)	(1,617)	(564)
Cash Flows from Financing Activities:
Proceeds from long-term debt	1,589	1,096	299
Payments of long-term debt, including make-whole premiums	(720)	(613)	(231)
Dividend to parent	(316)	0	(551)
Increase in notes payable–affiliated companies	130	504	8
Payment of debt issuance costs	(17)	(12)	(3)
Contribution from parent	1,143	130	62
Payment of obligation for finance lease	(485)	(179)	0
Net cash provided by (used in) financing activities	1,324	926	(416)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(145)	79	(81)
Cash, Cash Equivalents and Restricted Cash at Beginning of Year	233	154	235
Cash, Cash Equivalents and Restricted Cash at End of Year	$ 88	$ 233	$ 154