Condensed Statements of Consolidated Cash Flows (Unaudited) - CERC - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash Flows from Operating Activities:
Net income	$ 721	$ 614
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	645	634
Deferred income taxes	23	51
Gain on divestitures	(303)	0
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	64	220
Inventory	15	53
Accounts payable	(132)	(120)
Net regulatory assets and liabilities	113	(2,329)
Other current assets and liabilities	(164)	(100)
Other non-current assets and liabilities	30	(16)
Other operating activities, net	65	20
Net cash provided by (used in) operating activities	978	(1,076)
Cash Flows from Investing Activities:
Capital expenditures	(1,880)	(1,383)
Proceeds from divestitures	2,075	0
Other investing activities, net	45	7
Net cash provided by (used in) investing activities	942	(1,376)
Cash Flows from Financing Activities:
Decrease in short-term borrowings, net	(43)	(27)
Proceeds from (payments of) commercial paper, net	(1,226)	225
Proceeds from long-term debt	1,292	4,493
Payments of long-term debt, including make-whole premiums	(1,187)	(1,960)
Payment of debt issuance costs	(17)	(37)
Other financing activities, net	(7)	(4)
Net cash provided by (used in) financing activities	(1,597)	2,442
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	323	(10)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	254	167
Cash, Cash Equivalents and Restricted Cash at End of Period	577	157
CERC
Cash Flows from Operating Activities:
Net income	663	295
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	220	236
Deferred income taxes	201	27
Gain on divestitures	(557)	0
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	203	265
Accounts receivable/payable–affiliated companies	(40)	(23)
Inventory	60	42
Accounts payable	(110)	(135)
Net regulatory assets and liabilities	136	(2,137)
Other current assets and liabilities	(7)	(49)
Other non-current assets and liabilities	(3)	(33)
Other operating activities, net	1	8
Net cash provided by (used in) operating activities	767	(1,504)
Cash Flows from Investing Activities:
Capital expenditures	(688)	(548)
Proceeds from divestitures	2,075	0
Other investing activities, net	7	20
Net cash provided by (used in) investing activities	1,394	(528)
Cash Flows from Financing Activities:
Decrease in short-term borrowings, net	(43)	(27)
Proceeds from (payments of) commercial paper, net	(325)	217
Proceeds from long-term debt	852	1,699
Payments of long-term debt, including make-whole premiums	(425)	0
Dividend to parent	(831)	0
Payment of debt issuance costs	(8)	(10)
Increase (decrease) in notes payable–affiliated companies	(1,517)
Increase (decrease) in notes payable–affiliated companies		151
Non-cash contribution from parent	125	0
Other financing activities, net	(1)	(2)
Net cash provided by (used in) financing activities	(2,173)	2,028
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(12)	(4)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	15	6
Cash, Cash Equivalents and Restricted Cash at End of Period	$ 3	$ 2