Condensed Statements Of Consolidated Cash Flows - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014
Cash flows - operating activities:
Net loss		$ (3,071)	$ (1,168)
Adjustments to reconcile net loss to cash provided by operating activities:
Depreciation and amortization		748	1,108
Deferred income tax benefit, net		(844)	(602)
Fees paid for TCEH DIP Facility (Note 8) (reported as financing activities)		0	87
Impairment of goodwill (Note 3)		1,400	0
Impairment of long-lived assets (Note 5)		1,971	30
Contract claims adjustments (Note 7)		28	0
Unrealized net (gain) loss from mark-to-market valuations of commodity positions		(107)	502
Unrealized net gain from mark-to-market valuations of interest rate swaps (Note 6)		0	(1,290)
Liability adjustment arising from termination of interest rate swaps (Note 13)		0	277
Noncash realized loss on termination of interest rate swaps (Note 6)	[1]	0	1,225
Noncash realized gain on termination of natural gas hedging positions (Note 13)		0	(117)
Amortization of debt related costs, discounts, fair value discounts and losses on dedesignated cash flow hedges (Note 6)		1	89
Increase for bad debt expense		29	30
Impairment of Intangible Assets, Finite-lived		83	0
Other, net		48	49
Changes in operating assets and liabilities:
Margin deposits, net		108	(270)
Accrued interest		(2)	487
Other operating assets and liabilities, including liabilities subject to compromise		(160)	(24)
Cash provided by operating activities		203	383
Cash flows — financing activities:
Proceeds from TCEH DIP Facility before fees paid (Note 8)		0	1,425
Fees paid for TCEH DIP Facility (Note 8)		0	(87)
Repayments/repurchases of debt (Notes 8 and 9)		(24)	(224)
Contributions from noncontrolling interests (Note 11)			1
Other, net		0	1
Cash provided by (used in) financing activities		(24)	1,115
Cash flows — investing activities:
Capital expenditures		(275)	(254)
Nuclear fuel purchases		(77)	(76)
Settlements of notes/advances due from affiliates		0	(17)
Changes in restricted cash		33	194
Proceeds from sales of nuclear decommissioning trust fund securities (Note 15)		315	250
Investments in nuclear decommissioning trust fund securities (Note 15)		(328)	(263)
Other, net		12	0
Cash provided by (used in) investing activities		(320)	(166)
Net change in cash and cash equivalents		(141)	1,332
Cash and cash equivalents – beginning balance		1,843	746
Cash and cash equivalents – ending balance		$ 1,702	$ 2,078

[1] See Note 13.