CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (Unaudited) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash Flows from Operating Activities:
Net Income	$ 92	$ 114
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	340	344
Amortization of deferred financing costs	8	7
Deferred income taxes	(33)	(30)
Changes in other assets and liabilities:
Accounts and notes receivable, net	(96)	(102)
Accounts receivable/payable, affiliates	(19)	(15)
Inventory	(10)	(7)
Accounts payable	4	(21)
Taxes receivable	(6)	2
Interest and taxes accrued	(43)	17
Net regulatory assets and liabilities	11	20
Other current assets	13	3
Other current liabilities	3	(1)
Other assets	1	2
Other liabilities	2	(1)
Other, net	0	1
Net cash provided by operating activities	267	333
Cash Flows from Investing Activities:
Capital expenditures	(325)	(278)
Decrease in notes receivable from affiliates	433	1,010
Decrease (increase) in restricted cash of transition and system restoration bond companies	2	(13)
Other, net	(10)	(20)
Net cash provided by investing activities	100	699
Cash Flows from Financing Activities:
Proceeds from long-term debt	0	1,695
Payments of long-term debt	(670)	(197)
Dividend to parent	0	(1,685)
Debt issuance costs	0	(9)
Other, net	1	1
Net cash used in financing activities	(669)	(195)
Net Increase (Decrease) in Cash and Cash Equivalents	(302)	837
Cash and Cash Equivalents at Beginning of Period	646	220
Cash and Cash Equivalents at End of Period	344	1,057
Cash Payments:
Interest, net of capitalized interest	118	125
Income taxes, net	81	49
Non-cash transactions:
Accounts payable related to capital expenditures	$ 44	$ 46