CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (Unaudited) (USD $) In Millions	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash Flows from Operating Activities:
Net income	$ 103	$ 90
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	274	277
Amortization of deferred financing costs	6	6
Deferred income taxes	60	(46)
Changes in other assets and liabilities:
Accounts and notes receivable, net	(87)	(92)
Accounts receivable/payable, affiliates	13	(13)
Inventory	(3)	1
Accounts payable	(8)	(2)
Taxes receivable	63	54
Interest and taxes accrued	(9)	(7)
Net regulatory assets and liabilities	(20)	(6)
Other current assets	15	14
Other current liabilities	5	(8)
Other assets	0	(2)
Other liabilities	(2)	(1)
Other, net	1	(1)
Net cash provided by operating activities	411	264
Cash Flows from Investing Activities:
Capital expenditures	(298)	(242)
Increase in notes receivable from affiliates, net	(60)	(109)
Decrease (increase) in restricted cash of transition and system restoration bond companies	(1)	1
Cash Received From U.S. Department Of Energy Grant	77	33
Other, net	(11)	(3)
Net cash used in investing activities	(293)	(320)
Cash Flows from Financing Activities:
Payments of long-term debt	(141)	(106)
Other, net	1	0
Net cash used in financing activities	(140)	(106)
Net Decrease in Cash and Cash Equivalents	(22)	(162)
Cash and Cash Equivalents at Beginning of Period	198	739
Cash and Cash Equivalents at End of Period	176	577
Cash Payments:
Interest, net of capitalized interest	133	129
Income taxes (refunds), net	(83)	34
Non-cash transactions:
Accounts payable related to capital expenditures	$ 35	$ 35