STATEMENTS OF CONSOLIDATED CASH FLOWS (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash Flows from Operating Activities:
Net income	$ 64	$ 137	$ 316
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	230	285	262
Amortization of deferred financing costs	11	13	13
Deferred income taxes	357	245	144
Goodwill impairment	0	252	0
Step acquisition gain	0	(136)	0
Write-down of natural gas inventory	4	4	11
Equity in earnings of unconsolidated affiliates, net of distributions	(58)	8	8
Changes in other assets and liabilities:
Accounts receivable and unbilled revenues, net	(220)	6	67
Accounts receivable/payable, affiliates	(2)	5	(14)
Inventory	(10)	41	20
Taxes receivable	(18)	1	62
Accounts payable	110	2	(101)
Fuel cost recovery	108	(52)	(70)
Interest and taxes accrued	33	(11)	6
Non-trading derivatives, net	4	19	(10)
Margin deposits, net	16	53	34
Other current assets	3	(10)	11
Other current liabilities	5	8	(12)
Other assets	(18)	(13)	(3)
Other liabilities	6	(28)	22
Other, net	10	7	3
Net cash provided by operating activities	635	836	769
Cash Flows from Investing Activities:
Capital expenditures, net of acquisitions	(495)	(566)	(644)
Acquisitions, net of cash acquired	0	(360)	0
Investment in unconsolidated affiliates	0	(5)	(12)
Cash contribution to Enable	(38)	0	0
Other, net	(3)	8	10
Net cash used in investing activities	(536)	(923)	(646)
Cash Flows from Financing Activities:
Increase (decrease) in short-term borrowings, net	5	(24)	9
Proceeds from (payments of) commercial paper, net	118	(285)	102
Proceeds from long-term debt	1,050	0	550
Payments of long-term debt	(525)	0	(606)
Cash paid for debt exchange	(5)	0	(58)
Debt issuance costs	(1)	0	(14)
Increase (decrease) in notes payable to affiliates	(741)	396	(106)
Net cash provided by (used in) financing activities	(99)	87	(123)
Net Decrease in Cash and Cash Equivalents	0	0	0
Cash and Cash Equivalents at Beginning of the Year	1	1	1
Cash and Cash Equivalents at End of the Year	1	1	1
Cash Payments:
Interest, net of capitalized interest	148	163	177
Income taxes (refunds), net	(5)	3	(20)
Non-cash transactions:
Accounts payable related to capital expenditures	21	60	53
Formation of Enable	$ 4,252	$ 0	$ 0