CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
OPERATING ACTIVITIES
Net income	$ 1,096	$ 1,193
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	557	607
Deferred income taxes	(23)	(21)
Provision for uncollectible accounts	35	51
Changes in current assets and liabilities:
Accounts receivable	9	(9)
Accounts payable	(16)	11
Accrued income and other taxes	12	22
Other current assets and liabilities, net	(6)	(23)
Changes in other noncurrent assets and liabilities, net	30	33
Changes in affiliate obligations, net	(41)	(46)
Other, net	(7)	4
Net cash provided by operating activities	1,646	1,822
INVESTING ACTIVITIES
Capital expenditures	(776)	(773)
Changes in advances to affiliates	(576)	(1,057)
Proceeds from sale of property, plant and equipment and other assets	6	10
Net cash used in investing activities	(1,346)	(1,820)
FINANCING ACTIVITIES
Payments of long-term debt	(227)	(2)
Changes in advances from affiliates	(61)	0
Net cash used in financing activities	(288)	(2)
Net increase in cash, cash equivalents and restricted cash	12	0
Cash, cash equivalents and restricted cash at beginning of period	12	10
Cash, cash equivalents and restricted cash at end of period	24	10
Supplemental cash flow information:
Income taxes paid, net	(393)	(423)
Interest paid, including affiliate interest (net of capitalized interest of $60 and $37)	(47)	(79)
Repayment of long-term debt in exchange for advances from affiliates	215	0
Cash, cash equivalents and restricted cash:
Cash and cash equivalents	22	8
Restricted cash - noncurrent	2	2
Total	$ 24	$ 10