CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (Unaudited) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash Flows from Operating Activities:
Net Income	$ 252	$ 1,068
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	563	453
Amortization of deferred financing costs	10	9
Deferred income taxes	(36)	188
Extraordinary Item, net of tax	0	(598)
Return on true-up balance	0	(352)
Changes in other assets and liabilities:
Accounts and notes receivable, net	(119)	(107)
Accounts receivable/payable, affiliates	1	4
Inventory	(11)	(4)
Accounts payable	(23)	2
Taxes receivable	2	63
Interest and taxes accrued	(63)	(73)
Net regulatory assets and liabilities	25	(25)
Other current assets	10	(1)
Other current liabilities	(1)	16
Other assets	3	(3)
Other liabilities	(1)	2
Other, net	(2)	0
Net cash provided by operating activities	610	642
Cash Flows from Investing Activities:
Capital expenditures	(429)	(449)
Decrease (increase) in notes receivable from affiliates, net	746	(117)
Increase in restricted cash of transition and system restoration bond companies	(12)	(2)
Cash received from U.S. Department of Energy grant	0	110
Other, net	(9)	5
Net cash provided by (used in) investing activities	296	(453)
Cash Flows from Financing Activities:
Proceeds from long-term debt	2,495	0
Payments of long-term debt	(1,153)	(283)
Dividend to parent	(1,685)	0
Cash paid for debt retirement	(69)	0
Debt issuance costs	(16)	(2)
Other, net	1	1
Net cash used in financing activities	(427)	(284)
Net Increase (Decrease) in Cash and Cash Equivalents	479	(95)
Cash and Cash Equivalents at Beginning of Period	220	198
Cash and Cash Equivalents at End of Period	699	103
Cash Payments:
Interest, net of capitalized interest	265	279
Income taxes (refunds), net	126	(29)
Non-cash transactions:
Accounts payable related to capital expenditures	$ 42	$ 38