Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating Activities
Net Income	$ 137	$ 116
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	228	212
Nuclear fuel amortization	5	9
Allowance for equity funds used during construction	(5)	(3)
Deferred income taxes	42	27
Asset (gains), losses and reserves, net	0	(1)
Changes in assets and liabilities:
Accounts receivable, net	6	(3)
Inventories	55	52
Accounts payable	73	(17)
Regulatory assets and liabilities	(135)	163
Accrued pension liability — affiliates	(20)	(92)
Accrued postretirement liability — affiliates	(15)	(125)
Other assets	(28)	(31)
Other liabilities	(31)	(66)
Net cash from operating activities	312	241
Investing Activities
Plant and equipment expenditures	(354)	(255)
Restricted cash for debt redemption, principally Securitization	65	57
Notes receivable from affiliate	200	0
Proceeds from sale of nuclear decommissioning trust fund assets	271	136
Investments in nuclear decommissioning trust funds	(275)	(140)
Other Investments	8	6
Net cash used for investing activities	(101)	(208)
Financing Activities
Issuance of long-term debt, net of issuance costs	0	372
Redemption of long-term debt	(113)	(139)
Short-term borrowings - other	0	(130)
Short-term borrowings - Affiliate	5	(29)
Dividends on common stock	(93)	(85)
Other	(3)	(3)
Net cash used for financing activities	(204)	(14)
Net Increase (Decrease) in Cash and Cash Equivalents	7	19
Cash and Cash Equivalents at Beginning of Period	27
Cash and Cash Equivalents at End of Period	34
Supplemental Disclosure of Non-Cash Investing and Financing Activities
Plant and equipment expenditures in accounts payable	$ 176	$ 106