STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Operating activities
Net income	$ 260	$ 242
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	229	225
Deferred income taxes	(31)	25
Allowance for equity funds used during construction	(3)	(24)
Provision for bad debts	6	5
Changes in operating assets and liabilities:
Accounts receivable	(66)	(31)
Accrued unbilled revenues	20	4
Inventories	(14)	(24)
Prepayments and other	21	(14)
Accounts payable	6	(3)
Net regulatory assets and liabilities	(113)	(96)
Other current liabilities	19	15
Pension and other employee benefit obligations	(16)	(15)
Other, net	(2)	3
Net cash provided by operating activities	276	304
Investing activities
Utility capital/construction expenditures	(446)	(845)
Investments in utility money pool arrangement	83	4
Repayments from utility money pool arrangement	83	4
Net cash used in investing activities	(446)	(845)
Financing activities
Repayments of short-term borrowings, net	(232)	0
Proceeds from issuance of long-term debt, net	247	343
Borrowings under utility money pool arrangement	539	721
Repayments under utility money pool arrangement	(439)	(711)
Capital contributions from parent	304	435
Dividends paid to parent	(254)	(257)
Net cash provided by financing activities	165	531
Net change in cash, cash equivalents and restricted cash	(5)	(10)
Cash, cash equivalents and restricted cash at beginning of period	6	16
Cash, cash equivalents and restricted cash at end of period	1	6
Supplemental disclosure of cash flow information:
Cash paid for interest (net of amounts capitalized)	(75)	(69)
Cash received for income taxes, net	19	4
Supplemental disclosure of non-cash investing and financing transactions:
Accrued property, plant and equipment additions	39	111
Inventory transfers to property, plant and equipment	6	22
Allowance for equity funds used during construction	3	24
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 1	$ 6