Condensed Statements of Consolidated Cash Flows - Houston Electric - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash Flows from Operating Activities:
Net income	$ 531	$ 363
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	318	307
Deferred income taxes	28	66
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	(201)	29
Inventory	132	99
Accounts payable	(85)	(55)
Net regulatory assets and liabilities	135	(2,297)
Other current assets and liabilities	82	(121)
Other non-current assets and liabilities	(25)	3
Other operating activities, net	58	2
Net cash provided by (used in) operating activities	580	(1,681)
Cash Flows from Investing Activities:
Capital expenditures	(846)	(594)
Other investing activities, net	18	(10)
Net cash provided by (used in) investing activities	1,934	(604)
Cash Flows from Financing Activities:
Proceeds from long-term debt	792	2,795
Payments of long-term debt, including make-whole premiums	(1,113)	(388)
Payment of debt issuance costs	(8)	(20)
Payment of obligation for finance lease	(171)	0
Other, net	(6)	(4)
Net cash provided by (used in) financing activities	(2,621)	2,285
Net Decrease in Cash, Cash Equivalents and Restricted Cash	(107)	0
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	254	167
Cash, Cash Equivalents and Restricted Cash at End of Period	147	167
Houston Electric
Cash Flows from Operating Activities:
Net income	61	53
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	162	141
Deferred income taxes	9	(5)
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	15	21
Accounts receivable/payable–affiliated companies	38	(49)
Inventory	(12)	(7)
Accounts payable	(62)	14
Net regulatory assets and liabilities	(75)	(63)
Other current assets and liabilities	(56)	(59)
Other non-current assets and liabilities	(5)	3
Other operating activities, net	(2)	(2)
Net cash provided by (used in) operating activities	73	47
Cash Flows from Investing Activities:
Capital expenditures	(491)	(314)
Increase in notes receivable–affiliated companies	(354)	(665)
Other investing activities, net	(3)	(3)
Net cash provided by (used in) investing activities	(848)	(982)
Cash Flows from Financing Activities:
Proceeds from long-term debt	792	1,096
Payments of long-term debt, including make-whole premiums	(38)	(138)
Decrease in notes payable–affiliated companies	(512)	(8)
Dividend to parent	(37)	0
Contribution from parent	637	0
Payment of debt issuance costs	(8)	(10)
Payment of obligation for finance lease	(171)	0
Other, net	1	0
Net cash provided by (used in) financing activities	664	940
Net Decrease in Cash, Cash Equivalents and Restricted Cash	(111)	5
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	233	154
Cash, Cash Equivalents and Restricted Cash at End of Period	$ 122	$ 159