CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash Flows from Operating Activities:
Net Income	$ 36	$ 24
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	147	125
Amortization of deferred financing costs	3	3
Deferred income taxes	(11)	26
Changes in other assets and liabilities:
Accounts and notes receivable, net	3	2
Accounts receivable/payable, affiliates	(6)	(14)
Inventory	(3)	1
Accounts payable	(21)	(9)
Taxes receivable	2	29
Interest and taxes accrued	(88)	(106)
Net regulatory assets and liabilities	22	6
Other current assets	4	14
Other current liabilities	(8)	(3)
Other assets	2	(1)
Other liabilities	(1)	(13)
Other, net	0	1
Net cash provided by operating activities	81	85
Cash Flows from Investing Activities:
Capital expenditures	(143)	(143)
Decrease in notes receivable from affiliates	1,010	53
Increase in restricted cash of transition and system restoration bond companies	(15)	0
Cash received from U.S. Department of Energy grant	0	32
Other, net	(10)	(2)
Net cash provided by (used in) investing activities	842	(60)
Cash Flows from Financing Activities:
Proceeds from long-term debt	1,695	0
Payments of long-term debt	(151)	(141)
Dividend to parent	(1,685)	0
Debt issuance costs	(8)	0
Other, net	1	0
Net cash used in financing activities	(148)	(141)
Net Increase (Decrease) in Cash and Cash Equivalents	775	(116)
Cash and Cash Equivalents at Beginning of Period	220	198
Cash and Cash Equivalents at End of Period	995	82
Cash Payments:
Interest, net of capitalized interest	123	130
Income tax refunds, net	(1)	(44)
Non-cash transactions:
Accounts payable related to capital expenditures	$ 47	$ 30