STATEMENTS OF CONSOLIDATED CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash Flows from Operating Activities:
Net income (loss)	$ 917	$ 1,057	$ 1,486
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,401	1,288	1,316
Deferred income taxes	31	20	213
Loss (gain) on divestitures	13	(303)	(681)
Loss (gain) on equity securities	(31)	227	172
Loss (gain) on indexed debt securities	27	(325)	(50)
Equity in earnings of unconsolidated affiliates	0	0	(339)
Distributions from unconsolidated affiliates	0	0	155
Pension contributions	(32)	(35)	(61)
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	423	(461)	(98)
Inventory	167	(259)	(140)
Taxes receivable	(74)	(19)	81
Accounts payable	(302)	203	175
Net regulatory assets and liabilities	1,043	234	(2,295)
Other current assets and liabilities	162	(5)	56
Other non-current assets and liabilities	72	109	(53)
Other operating activities, net	60	79	85
Net cash provided by operating activities	3,877	1,810	22
Cash Flows from Investing Activities:
Capital expenditures	(4,401)	(4,419)	(3,164)
Transaction costs related to Enable Merger (Note 4)	0	0	(49)
Cash received related to Enable Merger	0	0	5
Proceeds from sale of equity securities, net of transaction costs	0	702	1,320
Proceeds from divestitures (Note 4)	144	2,075	22
Other investing activities, net	24	14	15
Net cash used in investing activities	(4,233)	(1,628)	(1,851)
Cash Flows from Financing Activities:
Increase (decrease) in short-term borrowings, net	(10)	452	(27)
Payment of obligation for finance lease	0	(485)	(179)
Proceeds from (payments of) commercial paper, net	(1,055)	(74)	1,132
Proceeds from long-term debt and term loans	6,044	2,089	4,493
Payments of long-term debt and term loans, including make-whole premiums	(3,190)	(1,795)	(2,968)
Payment of debt issuance costs	(55)	(36)	(38)
Payment of dividends on Common Stock	(485)	(440)	(385)
Payment of dividends on Preferred Stock	(50)	(49)	(107)
Redemption of Series A Preferred Stock	(800)	0	0
Other financing activities, net	(25)	(7)	(5)
Net cash provided by (used in) financing activities	374	(345)	1,916
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	18	(163)	87
Cash, Cash Equivalents and Restricted Cash at Beginning of Year	91	254	167
Cash, Cash Equivalents and Restricted Cash at End of Year	$ 109	$ 91	$ 254