STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating activities
Net income	$ 52	$ 58
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	79	79
Deferred income taxes	(2)	(19)
Allowance for equity funds used during construction	0	(1)
Provision for bad debts	2	2
Changes in operating assets and liabilities:
Accounts receivable	(26)	(1)
Accrued unbilled revenues	0	(3)
Inventories	(6)	(17)
Prepayments and other	(8)	21
Accounts payable	0	56
Net regulatory assets and liabilities	3	(95)
Other current liabilities	(3)	(3)
Pension and other employee benefit obligations	1	(15)
Other, net	(3)	(2)
Net cash provided by operating activities	89	66
Investing activities
Utility capital/construction expenditures	(123)	(172)
Investments in utility money pool arrangement	0	83
Repayments from utility money pool arrangement	0	83
Net cash used in investing activities	(123)	(172)
Financing activities
Proceeds from (repayments of) short-term borrowings, net	75	(250)
Proceeds from issuance of long-term debt, net	0	247
Borrowings under utility money pool arrangement	202	213
Repayments under utility money pool arrangement	(193)	(213)
Capital contributions from parent	8	304
Dividends paid to parent	(58)	(54)
Net cash provided by financing activities	34	247
Net change in cash, cash equivalents and restricted cash	0	141
Cash, cash equivalents and restricted cash at beginning of period	1	6
Cash, cash equivalents and restricted cash at end of period	1	147
Supplemental disclosure of cash flow information:
Cash paid for interest (net of amounts capitalized)	(21)	(19)
Cash received for income taxes, net	3	14
Supplemental disclosure of non-cash investing and financing transactions:
Accrued property, plant and equipment additions	38	54
Inventory transfers to property, plant and equipment	4	7
Allowance for equity funds used during construction	0	1
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 1	$ 147