CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (Unaudited) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash Flows from Operating Activities:
Net income	$ 218	$ 252
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	530	563
Amortization of deferred financing costs	12	10
Deferred income taxes	(48)	(36)
Changes in other assets and liabilities:
Accounts and notes receivable, net	(84)	(119)
Accounts receivable/payable - affiliated companies	(37)	1
Inventory	(9)	(11)
Accounts payable	10	(23)
Taxes receivable	7	2
Interest and taxes accrued	(33)	(63)
Net regulatory assets and liabilities	21	25
Other current assets	10	10
Other current liabilities	(17)	(1)
Other assets	3	3
Other liabilities	21	(1)
Other, net	0	(2)
Net cash provided by operating activities	604	610
Cash Flows from Investing Activities:
Capital expenditures	(508)	(429)
Decrease in notes receivable - affiliated companies	369	746
Decrease (increase) in restricted cash of transition and system restoration bond companies	13	(12)
Other, net	4	(9)
Net cash provided by (used in) investing activities	(122)	296
Cash Flows from Financing Activities:
Proceeds from long-term debt	0	2,495
Payments of long-term debt	(838)	(1,153)
Decrease in short-term notes payable - affiliated companies	(92)	0
Dividend to parent	0	(1,685)
Cash paid for debt retirement	0	(69)
Debt issuance costs	(1)	(16)
Other, net	1	1
Net cash used in financing activities	(930)	(427)
Net Increase (Decrease) in Cash and Cash Equivalents	(448)	479
Cash and Cash Equivalents at Beginning of Period	646	220
Cash and Cash Equivalents at End of Period	198	699
Cash Payments:
Interest, net of capitalized interest	221	265
Income taxes, net	108	126
Non-cash transactions:
Accounts payable related to capital expenditures	$ 51	$ 42