Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income	$ 163	$ 145
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	281	257
Deferred income taxes	2	35
Pension and other postretirement benefits	19	19
Allowance for equity funds used during construction	(8)	(9)
Decoupling mechanism deferrals, net of amortization	2	(15)
Deferral of net benefits due to Tax Reform	37	0
Other non-cash income and expenses, net	8	18
Changes in working capital:
Decrease in accounts receivable and unbilled revenues	12	40
Decrease in inventories	2	12
Decrease in margin deposits, net	6	4
Increase in accounts payable and accrued liabilities	17	14
Other working capital items, net	19	20
Other, net	(24)	(21)
Net cash provided by operating activities	536	519
Cash flows from investing activities:
Capital expenditures	(401)	(369)
Sales of Nuclear decommissioning trust securities	11	14
Purchases of Nuclear decommissioning trust securities	(9)	(12)
Proceeds from Carty settlement	120	0
Other, net	1	(2)
Net cash used in investing activities	(278)	(369)
Cash flows from financing activities:
Proceeds from Issuance of long-term Debt	0	75
Repayments of long-term debt	0	50
Dividends paid	(93)	(87)
Other	(4)	(5)
Net cash used in financing activities	(97)	(67)
Increase in cash and cash equivalents	161	83
Cash and cash equivalents, beginning of period	39	6
Cash and cash equivalents, end of period	200	89
Supplemental cash flow information is as follows:
Cash paid for interest, net of amounts capitalized	72	68
Cash paid for income taxes	20	16
Capital Lease Obligations Incurred	$ 18	$ 73