Energy Future Competitive 10-Q 4 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Nov. 01, 2014
Entity Information [Line Items]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Entity Registrant Name	'Energy Future Competitive Holdings Co LLC	'
Entity Central Index Key	'0001445049	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Non-accelerated Filer	'
Entity Common Stock, Shares Outstanding A	'	0
Entity Outstanding Membership Interests	'At November 4, 2014, the outstanding membership interest in Energy Future Competitive Holdings Company LLC was directly held by Energy Future Holdings Corp.	'

Condensed_Statements_Of_Consol

Condensed Statements Of Consolidated Income (Loss) (USD $)	3 Months Ended		5 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]	'	'	'	'	'
Operating revenues	$1,807	$1,893	'	$4,731	$4,572
Fuel, purchased power costs and delivery fees	-868	-852	'	-2,256	-2,175
Net gain (loss) from commodity hedging and trading activities	75	58	'	-118	29
Operating costs	-204	-189	'	-660	-685
Depreciation and amortization	-327	-331	'	-983	-1,012
Selling, general and administrative expenses	-145	-175	'	-473	-502
Franchise and revenue-based taxes	-18	-18	'	-54	-51
Other income (Note 14)	5	1	'	11	7
Other deductions (Note 14)	-14	-8	'	-38	-12
Interest income	0	1	'	0	5
Interest expense and related charges (Note 8)	-325	-340	'	-1,434	-1,338
Reorganization items (Note 6)	-45	0	-468	-468	0
Income (loss) before income taxes	-59	40	'	-1,742	-1,162
Income tax benefit	21	17	'	574	476
Net income (loss)	($38)	$57	'	($1,168)	($686)

Condensed_Statement_of_Consoli

Condensed Statement of Consolidated Income (Loss) Parenthetical (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]	'	'	'	'
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	$0	$1	$0	$5

Condensed_Statements_Of_Consol1

Condensed Statements Of Consolidated Cash Flows (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013
Cash flows - operating activities:	'		'
Net loss	($1,168)		($686)
Adjustments to reconcile net loss to cash provided by (used in) operating activities:	'		'
Depreciation and amortization	1,108		1,142
Deferred income tax benefit, net	-602		-401
Income tax benefit due to IRS audit resolution	0		-80
Fees paid for TCEH DIP Facility (Note 6) (reported as financing activities)	87		0
Unrealized net loss from mark-to-market valuations of commodity positions	502		693
Unrealized net gain from mark-to-market valuations of interest rate swaps (Note 8)	-1,290		-899
Liability adjustment arising from termination of interest rate swaps (Note 12)	277		0
Noncash realized loss on termination of interest rate swaps (Note 8)	1,225	[1]	0	[1]
Noncash realized gain on termination of natural gas hedging positions (Note 12)	-117		0
Amortization of debt related costs, discounts, fair value discounts and losses on dedesignated cash flow hedges (Note 8)	89		209
Interest expense related to pushed-down debt of parent (Notes 7 and 8)	1		5
Asset write-downs (Note 14)	30		3
Bad debt expense (Note 14)	30		23
Accretion expense related primarily to mining reclamation obligations (Note 14)	19		24
Stock-based incentive compensation expense	2		1
Other, net	-3		2
Changes in operating assets and liabilities:	'		'
Margin deposits, net	-270		-197
Accrued interest	487		140
Other operating assets and liabilities, including liabilities subject to compromise	-24		-100
Cash provided by (used in) operating activities	383		-121
Cash flows — financing activities:	'		'
Proceeds from TCEH DIP Facility before fees paid (Note 5)	1,425		0
Fees paid for TCEH DIP Facility (Note 6)	-87		0
Repayments/repurchases of debt	-224		-94
Net borrowings under accounts receivable securitization program	0		90
Notes/advances due to affiliates	0		4
Contributions from noncontrolling interests (Note 10)	1		3
Other, net	0		-10
Cash provided by (used in) financing activities	1,115		-7
Cash flows — investing activities:	'		'
Capital expenditures	-254		-353
Nuclear fuel purchases	-76		-59
Settlements of notes/advances due from affiliates	-17		698
Increase in restricted cash related to TCEH DIP Facility (Notes 5 and 14)	-184		0
Reduction of restricted cash related to TCEH Letter of Credit Facility (Notes 7 and 14)	378		0
Purchase of right to use certain computer-related assets from parent (Note 13)	-3		-6
Proceeds from sales of assets	2		3
Acquisition of combustion turbine trust interest	0		-40
Proceeds from sales of environmental allowances and credits	3		0
Purchases of environmental allowances and credits	-13		-13
Proceeds from sales of nuclear decommissioning trust fund securities	250		128
Investments in nuclear decommissioning trust fund securities	-263		-140
Other, net	11		-3
Cash provided by (used in) investing activities	-166		215
Net change in cash and cash equivalents	1,332		87
Cash and cash equivalents – beginning balance	746		1,175
Cash and cash equivalents – ending balance	$2,078		$1,262
[1]	See Note 12.

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Current assets:	'		'
Cash and cash equivalents	$2,078		$746
Restricted cash (Note 14)	0		945
Trade accounts receivable — net (Note 14)	923		710
Advance to parent (Note 13)	8		0
Inventories (Note 14)	370		399
Commodity and other derivative contractual assets (Note 12)	131		784
Accumulated deferred income taxes	117		121
Margin deposits related to commodity positions	64		93
Other current assets	54		50
Total current assets	3,745		3,848
Restricted cash (Note 14)	751		0
Advance to parent (Note 13)	9		0
Investments (Note 14)	904		838
Property, plant and equipment — net (Note 14)	16,943		17,649
Goodwill (Note 4)	3,952		3,952
Identifiable intangible assets — net (Note 4)	1,616		1,717
Commodity and other derivative contractual assets (Note 12)	10		4
Other noncurrent assets	7		790
Total assets	27,937		28,798
Current liabilities:	'		'
Notes, loans and other debt, including $2,054 of borrowings under revolving credit facility (Note 7)	0		31,854
Debt held by affiliates (Notes 7 and 13)	0		382
Trade accounts payable	434		381
Trade accounts and other payables to affiliates	181		164
Notes payable to parent (Note 13)	0		103
Commodity and other derivative contractual liabilities (Note 12)	112		1,275
Margin deposits related to commodity positions	3		302
Accrued income taxes payable to parent (Note 13)	17		21
Accrued taxes other than income	86		120
Accrued interest (Notes 7 and 8)	111		419
Other current liabilities (a)	289	[1]	272
Total current liabilities	1,233		35,293
Borrowings under debtor-in-possession credit facility (Note 5)	1,425		0
Long-term debt, less amounts due currently (b)	94	[2]	0
Liabilities subject to compromise (Note 7)	33,930		0
Accumulated deferred income taxes	2,989		3,582
Commodity and other derivative contractual liabilities (Note 12)	4		0
Notes or other liabilities due to affiliates	0		2
Liability to EFH Corp. under the Federal and State Income Tax Allocation Agreement (Note 13)	0		535
Other noncurrent liabilities and deferred credits (Note 14)	1,680		1,654
Total liabilities	41,355		41,066
Commitments and Contingencies (Note 9)	'		'
Membership interests (Note 10):	'		'
EFCH membership interests	-13,418		-12,269
Noncontrolling interests in subsidiaries	0		1
Total membership interests	-13,418		-12,268
Total liabilities and membership interests	27,937		28,798
Debt Due Currently [Member]	'		'
Current liabilities:	'		'
Other current liabilities (a)	33		'
Debt Approved By Bankruptcy Court For Payment [Member]	'		'
Current liabilities:	'		'
Long-term debt, less amounts due currently (b)	46		'
Unamortized Fair Value Discount [Member]	'		'
Current liabilities:	'		'
Long-term debt, less amounts due currently (b)	3		'
Fixed Secured Facility Bonds [Member]	'		'
Current liabilities:	'		'
Long-term debt, less amounts due currently (b)	13		'
Unamortized Discount [Member]	'		'
Current liabilities:	'		'
Long-term debt, less amounts due currently (b)	2		'
Capital Lease Obligations [Member]	'		'
Current liabilities:	'		'
Long-term debt, less amounts due currently (b)	$40		'
[1]	Balance at September 30, 2014 includes $33 million of current portion of debt described in (b) below.
[2]	Consists of debt of $46 million approved by the Bankruptcy Court for repayment (less $3 million of unamortized fair value discount), $13 million of debt issued by a trust and secured by assets held by the trust (less $2 million of unamortized discount) and $40 million of capitalized lease obligations.

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets Condensed Consolidated Balance Sheet (Parenthetical) (Line of Credit [Member], Line of Credit [Member], USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Line of Credit [Member] | Line of Credit [Member]	'
Long-term Debt, Gross	$2,054

Business_And_Significant_Accou

Business And Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Business And Significant Accounting Policies	'
	BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES
	Description of Business
	References in this report to "we," "our," "us" and "the company" are to EFCH and/or its subsidiaries, as apparent in the context. See "Glossary" for defined terms.
	EFCH, a wholly owned subsidiary of EFH Corp., is a Dallas, Texas-based holding company. In April 2013, EFCH was converted from a Texas corporation to a Delaware limited liability company. The conversion did not result in a change in the management, assets, businesses or operations of EFCH. We conduct our operations almost entirely through our wholly owned subsidiary, TCEH. TCEH is a holding company for subsidiaries engaged in competitive electricity market activities largely in Texas, including electricity generation, wholesale energy sales and purchases, commodity risk management and trading activities and retail electricity sales. Key management activities, including commodity risk management and electricity sourcing for our retail and wholesale customers, are performed on an integrated basis; consequently, there are no reportable business segments.
	Bankruptcy Filing
	As discussed further in Note 2, on April 29, 2014 (the Petition Date), EFH Corp. and the substantial majority of its direct and indirect subsidiaries, including EFIH, EFCH and TCEH but excluding the Oncor Ring-Fenced Entities, (the Debtors), filed voluntary petitions for relief (the Bankruptcy Filing) under Chapter 11 of the United States Bankruptcy Code (the Bankruptcy Code) in the United States Bankruptcy Court for the District of Delaware (the Bankruptcy Court). See Note 5 for discussion of debtor-in-possession financing.
	Basis of Presentation, Including Application of Bankruptcy Accounting
	The condensed consolidated financial statements have been prepared as if EFCH is a going concern and reflect the application of ASC 852-10, Reorganizations. During the pendency of the Bankruptcy Filing, the Debtors will operate their businesses as "debtors-in-possession" under the jurisdiction of the Bankruptcy Court and in accordance with the applicable provisions of the Bankruptcy Code. ASC 852-10 applies to entities that have filed a petition for bankruptcy under Chapter 11 of the Bankruptcy Code. The guidance requires that transactions and events directly associated with the reorganization be distinguished from the ongoing operations of the business. In addition, the guidance provides for changes in the accounting and presentation of liabilities, as well as expenses and income directly associated with the Chapter 11 Cases. See Notes 6 and 7 for discussion of these accounting and reporting changes.
	Adjustments (consisting of normal recurring accruals) necessary for a fair presentation of the results of operations and financial position have been included therein. All intercompany items and transactions have been eliminated in consolidation. Certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with US GAAP have been omitted pursuant to the rules and regulations of the SEC. Because the condensed consolidated interim financial statements do not include all of the information and footnotes required by US GAAP, they should be read in conjunction with the audited financial statements and related notes included in our 2013 Form 10-K. The results of operations for an interim period may not give a true indication of results for a full year. All dollar amounts in the financial statements and tables in the notes are stated in millions of US dollars unless otherwise indicated.
	Use of Estimates
	Preparation of financial statements requires estimates and assumptions about future events that affect the reporting of assets and liabilities at the balance sheet dates and the reported amounts of revenue and expense, including fair value measurements and estimates of expected allowed claims. In the event estimates and/or assumptions prove to be different from actual amounts, adjustments are made in subsequent periods to reflect more current information.
	Changes in Accounting Standards
	In May 2014, the FASB and IASB issued Accounting Standards Update No. 2014-09 (ASU 2014-09), Revenue from Contracts with Customers. The ASU is effective for annual reporting periods (including interim reporting periods within those periods) beginning after December 15, 2016 for public entities. Early application is not permitted. The amendments in ASU 2014-09 create a new Accounting Standards Codification (ASC) Topic 606, Revenue from Contracts with Customers, which supersedes revenue recognition requirements in ASC 605, Revenue Recognition. ASU 2014-09 requires that an entity recognize revenues as performance obligations embedded in sales agreements with customers are satisfied by the entity. The rule is intended to eliminate inconsistencies in revenue recognition and thereby improve comparability across entities, industries and capital markets. We are in the process of assessing the effects of the application of the new guidance on our financial statements.
	In August 2014, the FASB issued Accounting Standards Update No. 2014-15 (ASU 2014-15), Presentation of Financial Statements - Going Concern. ASU 2014-15 is effective for annual reporting periods (including interim periods within those periods) ending after December 15, 2016. Early application is permitted. The amendments in ASU 2014-15 create a new ASC Sub-topic 205-40, Presentation of Financial Statements – Going Concern and requires management to assess for each annual and interim reporting period if conditions exist that raise substantial doubt about an entity's ability to continue as a going concern. The rule requires various disclosures depending on the facts and circumstances surrounding an entity's ability to continue as a going concern. We are in the process of assessing the effects of the application of the new guidance on our financial statements.

Bankruptcy_Filing_Bankruptcy_F

Bankruptcy Filing Bankruptcy Filing	9 Months Ended
	Sep. 30, 2014
Reorganizations [Abstract]	'
Bankruptcy Filing	'
	BANKRUPTCY FILING
	On the Petition Date, EFH Corp. and the substantial majority of its direct and indirect subsidiaries, including EFIH, EFCH and TCEH but excluding the Oncor Ring-Fenced Entities, filed voluntary petitions for relief under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the District of Delaware. During the pendency of the Bankruptcy Filing (Chapter 11 Cases), the Debtors will operate their businesses as "debtors-in-possession" under the jurisdiction of the Bankruptcy Court and in accordance with the applicable provisions of the Bankruptcy Code.
	The Bankruptcy Filing resulted primarily from the adverse effects on EFH Corp.'s competitive businesses of lower wholesale electricity prices in ERCOT driven by the sustained decline in natural gas prices since mid-2008. Further, the natural gas hedges that TCEH entered into when forward market prices of natural gas were significantly higher than current prices had largely matured before the remaining positions were terminated shortly after the Bankruptcy Filing (see Note 12). These market conditions challenged the profitability and operating cash flows of EFH Corp.'s competitive businesses and resulted in the inability to support their significant interest payments and debt maturities, including the remaining debt obligations due in 2014, and the inability to refinance and/or extend the maturities of their outstanding debt.
	As previously disclosed, after a series of discussions with certain creditors that began in 2013 and in anticipation of the Bankruptcy Filing, on April 29, 2014, the Debtors entered into a Restructuring Support and Lock-Up Agreement (RSA) with various stakeholders (Consenting Parties) in order to effect an agreed upon restructuring of the Debtors through a pre-arranged Chapter 11 plan of reorganization.
	On July 24, 2014, pursuant to the RSA, each of EFH Corp., EFIH, EFCH, TCEH, EFIH Finance, Inc. and TCEH Finance Inc. provided a notice of termination of the RSA in accordance with its terms to the Consenting Parties. The RSA termination became effective on July 31, 2014.
	In cooperation with various stakeholders, the Debtors are focused on formulating and implementing an effective and efficient plan of reorganization for each of the Debtors under Chapter 11 of the Bankruptcy Code that maximizes enterprise value.
	Proposed Sale of Economic Interest in Oncor
	In September 2014, with input and support from several key stakeholders, the Debtors filed a motion with the Bankruptcy Court seeking the entry of an order approving bidding procedures with respect to the potential sale of EFH Corp.'s/EFIH's economic interest in Oncor. During October 2014, the bankruptcy court held hearings regarding the motion. On November 3, 2014, the Bankruptcy Court conditionally approved the motion. In conditionally approving the motion, the Bankruptcy Court required that, among other things, the Debtors modify the proposed bidding procedures and order to (a) allow up to five advisors for each of the official unsecured creditor committees at TCEH and EFH Corp./EFIH to access information regarding the bidding process on terms to be negotiated with these advisors, (b) allow additional time for bidders to evaluate potential transactions and submit bids and (c) prohibit material modifications to the bid procedures without the consent of the committees or further order of the Bankruptcy Court. In addition, the Bankruptcy Court required that prior to a modified order becoming effective, the respective boards of directors of EFH Corp., EFCH, TCEH and EFIH must vote to approve the proposed modified bidding procedures (along with an affirmative vote of the respective disinterested directors at EFIH and TCEH). The Debtors intend to continue to work closely with each of their respective stakeholders to formulate a bidding process that will maximize enterprise value for each of the Debtors.
	Tax Matters
	In June 2014, EFH Corp. filed a request with the IRS for a private letter ruling (Private Letter Ruling) that, among other things, will provide (a) that (i) the transfer by TCEH of all of its assets and its ordinary course operating liabilities to reorganized TCEH consummated through a tax-free spin (in accordance with the Private Letter Ruling) in connection with TCEH's emergence from bankruptcy (Reorganized TCEH), (ii) the transfer by the Debtors to Reorganized TCEH of certain operating assets and liabilities that are reasonably necessary to the operation of Reorganized TCEH and (iii) the distribution by TCEH of (A) the equity it holds in Reorganized TCEH and (B) the cash proceeds TCEH receives from Reorganized TCEH to the holders of TCEH first lien claims, will qualify as a "reorganization" within the meaning of Sections 368(a)(1)(G), 355 and 356 of the Code and (b) for certain other rulings under Sections 368(a)(1)(G) and 355 of the Code. The Debtors intend to continue to pursue the Private Letter Ruling in connection with any Chapter 11 plan of reorganization that is ultimately proposed. In October 2014, the Debtors filed a memorandum with the Bankruptcy Court that described tax related matters regarding restructuring alternatives.
	Operation and Implications of the Chapter 11 Cases
	The accompanying consolidated financial statements contemplate the realization of assets and the satisfaction of liabilities in the normal course of business. The Debtors' ability to continue as a going concern is contingent upon their ability to comply with the financial and other covenants contained in the debtor-in-possession financing (DIP Facilities), the Bankruptcy Court's approval of the Chapter 11 plan of reorganization ultimately proposed by the Debtors and their ability to successfully implement such Chapter 11 plan and obtain new financing, among other factors. As a result of the Chapter 11 Cases, the realization of assets and the satisfaction of liabilities are subject to uncertainty. While operating as debtors-in-possession under Chapter 11, the Debtors may sell or otherwise dispose of or liquidate assets or settle liabilities, subject to the approval of the Bankruptcy Court or as otherwise permitted in the ordinary course of business (and subject to restrictions contained in the DIP Facilities), for amounts other than those reflected in the accompanying consolidated financial statements.
	In general, the Debtors have received final bankruptcy court orders with respect to "first day motions" and other "operating motions" that allow the Debtors to operate their businesses in the ordinary course, including, among others, providing for the payment of certain pre-petition employee and retiree expenses and benefits, the use of the Debtors' existing cash management system, the continuation of customer contracts and programs at our retail electricity operations, the payment of certain pre-petition amounts to certain critical vendors, the ability to perform under certain pre-petition hedging and trading arrangements and the ability to pay certain pre-petition taxes and regulatory fees. In addition, the Bankruptcy Court has issued orders approving the DIP Facilities. See Note 5 for discussion of the TCEH DIP Facility.
	Pre-Petition Claims
	Holders of pre-petition claims will be required to file proofs of claims by the "bar date" established by the Bankruptcy Court. A bar date is the date by which certain claims against the Debtors must be filed if the claimants wish to receive any distribution in the Chapter 11 Cases. In August 2014, the Bankruptcy Court established a bar date of October 27, 2014 for most claims. We have received numerous proofs of claim since the Petition Date. We are early in the process of reconciling those claims to the amounts listed in our schedules of assets and liabilities. We may ask the Bankruptcy Court to disallow claims that we believe are duplicative, have been later amended or superseded, are without merit, are overstated or should be disallowed for other reasons. Given the substantial number of claims filed, the claims resolution process will take considerable time to complete. Differences between liability amounts recorded by the company as liabilities subject to compromise and claims filed by creditors will be investigated and, if necessary, the Bankruptcy Court will make a final determination of the allowable claim. Differences between those final allowed claims and the liabilities recorded in the condensed consolidated balance sheet will be recognized as reorganization items in our condensed statement of consolidated income (loss) as they are resolved. The determination of how liabilities will ultimately be resolved cannot be made until the Bankruptcy Court approves a plan of reorganization or approves orders related to settlement of specific liabilities. Accordingly, the ultimate amount or resolution of such liabilities is not determinable at this time. The resolution of such claims could result in material adjustments to the company's financial statements.

Variable_Interest_Entities

Variable Interest Entities	9 Months Ended
	Sep. 30, 2014
Consolidation Of Variable Interest Entities [Abstract]	'
Variable Interest Entities	'
	VARIABLE INTEREST ENTITIES
	A variable interest entity (VIE) is an entity with which we have a relationship or arrangement that indicates some level of control over the entity or results in economic risks to us. Accounting standards require consolidation of a VIE if we have (a) the power to direct the significant activities of the VIE and (b) the right or obligation to absorb profit and loss from the VIE (i.e., we are the primary beneficiary of the VIE). In determining the appropriateness of consolidation of a VIE, we evaluate its purpose, governance structure, decision making processes and risks that are passed on to its interest holders. We also examine the nature of any related party relationships among the interest holders of the VIE and the nature of any special rights granted to the interest holders of the VIE. There are no material investments accounted for under the equity or cost method.
	Consolidated VIE
	Our balance sheet includes assets and liabilities of a VIE that meets the consolidation standards. The maximum exposure to loss from our interests in the VIE does not exceed our carrying value. Assets and liabilities of the consolidated VIE are immaterial. The assets of our consolidated VIE can only be used to settle the obligations of the VIE, and the creditors of our consolidated VIE do not have recourse to our assets to settle the obligations of the VIE.

Goodwill_And_Identifiable_Inta

Goodwill And Identifiable Intangible Assets	9 Months Ended
	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill And Identifiable Intangible Assets	'
	GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS
	Goodwill
	The following table provides information regarding our goodwill balance, all of which arose in connection with accounting for the Merger. There were no changes to the goodwill balance for the three and nine months ended September 30, 2014 and 2013. None of the goodwill is being deducted for tax purposes.
	Goodwill before impairment charges	$	18,322
	Accumulated noncash impairment charges	(14,370		)
	Balance at September 30, 2014 and December 31, 2013	$	3,952
	We have determined that in consideration of our most recent forecasts of wholesale power prices in ERCOT, the likelihood of a goodwill impairment has increased. We have initiated an evaluation of goodwill as of September 30, 2014, which will be completed in the fourth quarter 2014 and could result in a material, noncash goodwill impairment charge in that period.
	Identifiable Intangible Assets
	Identifiable intangible assets, including amounts that arose in connection with accounting for the Merger, are comprised of the following:
			30-Sep-14												31-Dec-13
	Identifiable Intangible Asset		Gross Carrying Amount				Accumulated Amortization				Net				Gross Carrying Amount				Accumulated Amortization		Net
	Retail customer relationship		$	463			$	419			$	44			$	463			$	402	$	61
	Favorable purchase and sales contracts		352				157				195				352				139		213
	Software and other computer-related assets		354				188				166				348				147		201
	Environmental allowances and credits		205				32				173				209				20		189
	Mining development costs		167				91				76				156				69		87
	Total identifiable intangible assets subject to amortization		$	1,541			$	887			654				$	1,528			$	777	751
	Retail trade name (not subject to amortization)										955										955
	Mineral interests (not currently subject to amortization)										7										11
	Total identifiable intangible assets										$	1,616									$	1,717
	Amortization expense related to identifiable intangible assets (including income statement line item) consisted of:
	Identifiable Intangible Asset		Income Statement Line		Three Months Ended September 30,								Nine Months Ended September 30,
					2014				2013				2014				2013
	Retail customer relationship		Depreciation and amortization		$	6			$	6			$	17			$	18
	Favorable purchase and sales contracts		Operating revenues/fuel, purchased power costs and delivery fees		6				6				18				19
	Software and other computer-related assets		Depreciation and amortization		15				14				45				33
	Environmental allowances and credits		Fuel, purchased power costs and delivery fees		5				5				13				11
	Mining development costs		Depreciation and amortization		8				8				25				23
	Total amortization expense (a)				$	40			$	39			$	118			$	104
	_______________
	(a)	Amounts recorded in depreciation and amortization totaled $29 million and $28 million for the three months ended September 30, 2014 and 2013, respectively, and $87 million and $74 million for the nine months ended September 30, 2014 and 2013, respectively.
	Estimated Amortization of Identifiable Intangible Assets — The estimated aggregate amortization expense of identifiable intangible assets for each of the next five fiscal years is as follows:
	Year		Estimated Amortization Expense
	2014		$	152
	2015		$	140
	2016		$	113
	2017		$	88
	2018		$	62

DebtorInPossession_Borrowing_F

Debtor-In-Possession Borrowing Facility	9 Months Ended
	Sep. 30, 2014
Debtor-In-Possession Borrowing Facilities [Abstract]	'
Debtor-In-Possession Borrowing Facility	'
	DEBTOR-IN-POSSESSION BORROWING FACILITY
	TCEH DIP Facility — The TCEH DIP Facility currently provides for up to $3.375 billion in senior secured, super-priority financing consisting of a revolving credit facility of up to $1.95 billion and a term loan facility of up to $1.425 billion. The facility initially provided for an additional $1.1 billion RCT Delayed Draw Letter of Credit commitment that has since been terminated as described below. The TCEH DIP Facility is a Senior Secured, Super-Priority Credit Agreement by and among the TCEH Debtors, the lenders that are party thereto from time to time and an administrative and collateral agent.
	The TCEH DIP Facilities and related available capacity at September 30, 2014 are presented below. Borrowings are reported in the condensed consolidated balance sheet as borrowings under debtor-in-possession credit facilities.
			30-Sep-14
	TCEH DIP Facility		Facility		Available Cash		Available Letter of Credit Capacity
			Limit		Borrowing Capacity
	TCEH DIP Revolving Credit Facility (a)		$	1,950	$	1,950	$	—
	TCEH DIP Term Loan Facility (b)		1,425		—		616
	Total TCEH DIP Facility		$	3,375	$	1,950	$	616
	___________
	(a)	Facility used for general corporate purposes. No amounts were borrowed at September 30 or November 4, 2014. Pursuant to an order of the Bankruptcy Court, the TCEH Debtors may not have more than $1.650 billion of TCEH DIP Revolving Credit Facility cash borrowings outstanding without written consent of the committee of unsecured creditors and the ad hoc group of TCEH unsecured note holders or further order of the Bankruptcy Court.
	(b)	Facility used for general corporate purposes, including but not limited to, $800 million for issuing letters of credit.
	At September 30, 2014, all $1.425 billion of the TCEH DIP Term Loan Facility has been borrowed. Of this borrowing, $800 million represents amounts that are intended to support issuances of letters of credit and have been funded to a collateral account. Of the collateral account amount, $616 million is reported as cash and cash equivalents and $184 million is reported as restricted cash, which represents outstanding letters of credit at September 30, 2014.
	Amounts borrowed under the TCEH DIP Term Loan Facility bear interest based on applicable LIBOR rates, subject to a 0.75% floor, plus 3%. At September 30, 2014, the interest rate on outstanding borrowings was 3.75%. The timing of interest payments on the term loans is flexible and can be paid on a one, two, three or six month basis or as otherwise agreed upon with the relevant lenders. The TCEH DIP Facility also provides for certain additional fees payable to the agents and lenders, as well as availability fees payable with respect to any unused portions of the available TCEH DIP Facility.
	The TCEH DIP Facility will mature on the earlier of (a) the effective date of any reorganization plan, (b) upon the event of the sale of substantially all of TCEH's assets or (c) May 2016. The maturity date may be extended to no later than November 2016 subject to the satisfaction of certain conditions, including the payment of a 25 basis point extension fee, a requirement that an acceptable plan of reorganization has been filed on or prior to such extension and the availability of certain metrics of liquidity applicable to the TCEH Debtors.
	The TCEH Debtors' obligations under the TCEH DIP Facility are secured by a lien covering substantially all of the TCEH Debtors' assets, rights and properties, subject to certain exceptions set forth in the TCEH DIP Facility. The TCEH DIP Facility provides that all obligations thereunder constitute administrative expenses in the Chapter 11 Cases, with administrative priority and senior secured status under the Bankruptcy Code and, subject to certain exceptions set forth in the TCEH DIP Facility, have priority over any and all administrative expense claims, unsecured claims and costs and expenses in the Chapter 11 Cases. EFCH and substantially all of TCEH’s subsidiaries, including all subsidiaries that are debtors in the Chapter 11 Cases, are guarantors under the TCEH DIP Facility.
	The TCEH DIP Facility also permits certain hedging agreements to be secured on a pari-passu basis with the TCEH DIP Facility in the event those hedging agreements meet certain criteria set forth in the TCEH DIP Facility.
	In June 2014, the RCT agreed to accept a collateral bond from TCEH of up to $1.1 billion, as a substitute for its self-bond, to secure mining land reclamation obligations. The collateral bond is a $1.1 billion carve-out from the super-priority liens under the TCEH DIP Facility that will enable the RCT to be paid before the TCEH DIP Facility lenders in the event of a liquidation of TCEH's assets. As a result, in July 2014, TCEH terminated a $1.1 billion RCT Delayed Draw Letter of Credit commitment included in the original DIP facility.
	The TCEH DIP Facility provides for affirmative and negative covenants applicable to the TCEH Debtors, including affirmative covenants requiring the TCEH Debtors to provide financial information, budgets and other information to the agents under the TCEH DIP Facility, and negative covenants restricting the TCEH Debtors' ability to incur additional indebtedness, grant liens, dispose of assets, make investments, pay dividends or take certain other actions, in each case except as permitted in the TCEH DIP Facility. The TCEH Debtors' ability to borrow under the TCEH DIP Facility is subject to the satisfaction of certain customary conditions precedent set forth therein.
	The TCEH DIP Facility provides for certain customary events of default, including events of default resulting from non-payment of principal, interest or other amounts when due, material breaches of representations and warranties, material breaches of covenants in the TCEH DIP Facility or ancillary loan documents, cross-defaults under other agreements or instruments and the entry of material judgments against the TCEH Debtors. The agreement governing the TCEH DIP Facility includes a covenant that requires the Consolidated Superpriority Secured Net Debt to Consolidated EBITDA ratio not exceed 3.50 to 1.00. Consolidated Superpriority Secured Net Debt consists of outstanding term loans and revolving credit exposure under the TCEH DIP Facility less unrestricted cash. Upon the existence of an event of default, the TCEH DIP Facility provides that all principal, interest and other amounts due thereunder will become immediately due and payable, either automatically or at the election of specified lenders.

Reorganization_Items

Reorganization Items	9 Months Ended
	Sep. 30, 2014
Reorganization Items [Abstract]	'
Reorganization Items	'
	REORGANIZATION ITEMS
	Expenses and income directly associated with the Chapter 11 Cases are reported separately in the condensed statements of consolidated income (loss) as reorganization items as required by ASC 852-10, Reorganizations. Reorganization items also include adjustments to reflect the carrying value of liabilities subject to compromise (LSTC) at their estimated allowed claim amounts, as such adjustments are determined. The following table presents reorganization items incurred since the Petition Date as reported in the condensed statements of consolidated income (loss):
		Three Months Ended			Post-Petition Period Through
		30-Sep-14			30-Sep-14
	Liability adjustment arising from termination of interest rate swaps (Note 12)	$	—		$	277
	Fees associated with completion of TCEH DIP Facility (a)	(5		)	87
	Expenses related to legal advisory and representation services	30			51
	Expenses related to other professional consulting and advisory services	20			52
	Other	—			1
	Total reorganization items	$	45		$	468

Liabilities_Subject_To_Comprom

Liabilities Subject To Compromise	9 Months Ended
	Sep. 30, 2014
Debt and Capital Lease Obligations [Abstract]	'
Liabilities Subject To Compromise	'
	LIABILITIES SUBJECT TO COMPROMISE
	The amounts classified as liabilities subject to compromise (LSTC) reflect the company's estimate of pre-petition liabilities to be addressed in the Chapter 11 Cases and may be subject to future adjustment as the Chapter 11 Cases proceed. Debt amounts include related unamortized deferred financing costs, discounts or premiums. Amounts classified to LSTC do not include pre-petition liabilities that are fully secured by letters of credit or cash deposits. The following table presents LSTC as reported in the condensed consolidated balance sheets at September 30, 2014:
		September 30,
		2014
	Notes, loans and other debt per the following table	$	31,194
	Accrued interest on notes, loans and other debt	668
	Net liability under terminated TCEH interest rate swap and natural gas hedging agreements (Note 12)	1,235
	Trade accounts payable and accrued liabilities	168
	Liability under the Federal and State Income Tax Allocation Agreement (Note 13)	535
	Advances and other payables to affiliates	130
	Total liabilities subject to compromise	$	33,930
	Pre-Petition Notes, Loans and Other Debt Reported as Liabilities Subject to Compromise
	All amounts of pre-petition notes, loans and other debt reported as liabilities subject to compromise represent principal amounts.
		September 30,			31-Dec-13
		2014
	TCEH
	Senior Secured Facilities:
	TCEH Floating Rate Term Loan Facilities due October 10, 2014	$	3,809		$	3,809
	TCEH Floating Rate Letter of Credit Facility due October 10, 2014	42			42
	TCEH Floating Rate Revolving Credit Facility due October 10, 2016	2,054			2,054
	TCEH Floating Rate Term Loan Facilities due October 10, 2017 (a)	15,710			15,710
	TCEH Floating Rate Letter of Credit Facility due October 10, 2017	1,020			1,020
	11.5% Fixed Senior Secured Notes due October 1, 2020	1,750			1,750
	15% Fixed Senior Secured Second Lien Notes due April 1, 2021	336			336
	15% Fixed Senior Secured Second Lien Notes due April 1, 2021, Series B	1,235			1,235
	10.25% Fixed Senior Notes due November 1, 2015 (a)	2,046			2,046
	10.25% Fixed Senior Notes due November 1, 2015, Series B (a)	1,442			1,442
	10.50% /11.25% Senior Toggle Notes due November 1, 2016	1,749			1,749
	Pollution Control Revenue Bonds:
	Brazos River Authority:
	5.40% Fixed Series 1994A due May 1, 2029	39			39
	7.70% Fixed Series 1999A due April 1, 2033	111			111
	7.70% Fixed Series 1999C due March 1, 2032	50			50
	8.25% Fixed Series 2001A due October 1, 2030	71			71
	8.25% Fixed Series 2001D-1 due May 1, 2033	171			171
	Floating Rate Series 2001D-2 due May 1, 2033 (b)	—			97
	Floating Rate Taxable Series 2001I due December 1, 2036 (b)	—			62
	Floating Rate Series 2002A due May 1, 2037 (b)	—			45
	6.30% Fixed Series 2003B due July 1, 2032	39			39
	6.75% Fixed Series 2003C due October 1, 2038	52			52
	5.40% Fixed Series 2003D due October 1, 2029	31			31
	5.00% Fixed Series 2006 due March 1, 2041	100			100
	Sabine River Authority of Texas:
	6.45% Fixed Series 2000A due June 1, 2021	51			51
	5.20% Fixed Series 2001C due May 1, 2028	70			70
	5.80% Fixed Series 2003A due July 1, 2022	12			12
	6.15% Fixed Series 2003B due August 1, 2022	45			45
	Trinity River Authority of Texas:
	6.25% Fixed Series 2000A due May 1, 2028	14			14
	Unamortized fair value discount related to pollution control revenue bonds (c)	(103		)	(105		)
	Other:
	7.48% Fixed Secured Facility Bonds with amortizing payments through January 2017 (d)	—			36
	7.46% Fixed Secured Facility Bonds with amortizing payments through January 2015 (d)	—			4
	Capitalized lease obligations (d)	—			52
	Other	3			3
	Unamortized discount	(91		)	(103		)
	Total TCEH	31,858			32,140
		September 30,			31-Dec-13
		2014
	EFCH (parent entity)
	9.58% Fixed Notes due in annual installments through December 4, 2019 (d)	$	—		$	29
	8.254% Fixed Notes due in quarterly installments through December 31, 2021 (d)	—			34
	Floating Rate Junior Subordinated Debentures, Series D due January 30, 2037	1			1
8.175% Fixed Junior Subordinated Debentures, Series E due January 30, 2037	8			8
Unamortized fair value discount (c)	(1		)	(6		)
Subtotal	8			66
EFH Corp. pre-petition debt pushed down (e)
10.875% Fixed Senior Notes due November 1, 2017	16			16
11.25%/12.00% Senior Toggle Notes due November 1, 2017	14			14
Subtotal — EFH Corp. debt pushed down	30			30
Total EFCH (parent entity)	38			96
Deferred debt issuance and extension costs (f)	(702		)	—
Total EFCH consolidated notes, loans and other debt	$	31,194		$	32,236
____________
(a)	As discussed below and in Note 13, principal amounts of notes/term loans totaling $382 million at both September 30, 2014 and December 31, 2013 were held by EFH Corp. and EFIH.
(b)	These bonds were tendered and settled through letter of credit draws.
(c)	Amount represents unamortized fair value adjustments recorded under purchase accounting.
(d)	Amounts classified as debt in the condensed consolidated balance sheet at September 30, 2014. See (a) and (b) notes to condensed consolidated balance sheets.
(e)	Represents 50% of the amount of these EFH Corp. securities guaranteed by, and pushed down to (pushed-down debt), EFCH (parent entity) per the discussion below under "Guarantees and Push Down of EFH Corp. Pre-Petition Debt."
(f)	Deferred debt issuance and extension costs were reported in other noncurrent assets at December 31, 2013.
Guarantees and Push Down of EFH Corp. Pre-Petition Debt
Merger-related debt of EFH Corp. and its subsidiaries consists of debt issued or existing at the time of the Merger. Debt issued in exchange for Merger-related debt is considered Merger-related. Debt issuances for cash are considered Merger-related debt to the extent the proceeds are used to repurchase Merger-related debt. EFCH and EFIH (excluding their subsidiaries) fully and unconditionally guarantee on a joint and several basis the Merger-related debt of EFH Corp. (parent). Such debt is subject to push down in accordance with SEC Staff Accounting Bulletin Topic 5-J, and as a result, a portion of such debt and related interest expense is reflected in our financial statements. Merger-related debt of EFH Corp. held by its subsidiaries is not subject to push down.
Debt guaranteed and subject to push down at September 30, 2014 totals $60 million and consists of $33 million principal amount of EFH Corp. 10.875% Senior Notes and $27 million principal amount of EFH Corp. 11.25%/12.00% Senior Toggle Notes. The amount reflected in our condensed consolidated balance sheets as pushed down pre-petition debt ($30 million at both September 30, 2014 and December 31, 2013, as shown in the debt table above) represents 50% of the principal amount of the EFH Corp. Merger-related debt guaranteed. This percentage reflects the fact that at the time of the Merger, the equity investments of EFCH and EFIH in their respective operating subsidiaries were essentially equal amounts. Because payment of principal and interest on the debt is the responsibility of EFH Corp., we record the settlement of such amounts as noncash capital contributions from EFH Corp.
There were no payments of interest by EFH Corp. on pre-petition debt pushed down for the nine months ended September 30, 2014. EFH Corp. payments of interest on debt pushed down totaled $21 million for the nine months ended September 30, 2013.
Information Regarding Significant Pre-Petition Debt
TCEH elected not to make interest payments due in April 2014 totaling $123 million on certain debt obligations.
The TCEH pre-petition debt described below is junior in right of priority and payment to the TCEH DIP Facility.
TCEH Senior Secured Facilities — Borrowings under the TCEH Senior Secured Facilities total $22.635 billion and consist of:
•	$3.809 billion of TCEH Term Loan Facilities with interest at LIBOR plus 3.50%;
•	$15.710 billion of TCEH Term Loan Facilities with interest at LIBOR plus 4.50%, including $19 million aggregate principal amount held by EFH Corp.;
•	$42 million of cash borrowed under the TCEH Letter of Credit Facility with interest at LIBOR plus 3.50%;
•	$1.020 billion of cash borrowed under the TCEH Letter of Credit Facility with interest at LIBOR plus 4.50%, and
•	Amounts borrowed under the TCEH Revolving Credit Facility, which represent the entire amount of commitments under the facility totaling $2.054 billion.
The TCEH Senior Secured Facilities are fully and unconditionally guaranteed jointly and severally on a senior secured basis by EFCH, and subject to certain exceptions, each existing and future direct or indirect wholly owned US subsidiary of TCEH. The TCEH Senior Secured Facilities, the TCEH Senior Secured Notes and the TCEH first lien hedges (or any termination amounts related thereto), are secured on a first priority basis by (i) substantially all of the current and future assets of TCEH and TCEH's subsidiaries who are guarantors of such facilities and (ii) pledges of the capital stock of TCEH and certain current and future direct or indirect subsidiaries of TCEH.
Borrowings under the TCEH Letter of Credit Facility have been recorded by TCEH as restricted cash that supports issuances of letters of credit. At September 30, 2014, the restricted cash related to the TCEH Letter of Credit Facility totaled $567 million and supports $354 million in letters of credit outstanding. Due to the default under the TCEH Senior Secured Facilities, the remaining$213 million letter of credit capacity is no longer available. In the first quarter 2014, TCEH issued a $157 million letter of credit to a subsidiary of EFH Corp. to secure its current and future amounts payable to the subsidiary arising from recurring transactions in the normal course of business, and through the third quarter 2014, the subsidiary drew on the letter of credit in the amount of $150 million to settle amounts due from TCEH. The remaining $7 million under the letter of credit expired in July 2014. Year to date September 30, 2014, $228 million of letters of credit have been drawn upon by unaffiliated counterparties to settle amounts receivable from TCEH, including $204 million related to pollution control revenue bonds that were tendered as noted in the table above.
TCEH 11.5% Senior Secured Notes — The principal amount of the TCEH 11.5% Senior Secured Notes totals $1.750 billion, with interest at a fixed rate of 11.5% per annum. The notes are fully and unconditionally guaranteed on a joint and several basis by EFCH and each subsidiary of TCEH that guarantees the TCEH Senior Secured Facilities (collectively, the Guarantors). The notes are secured, on a first-priority basis, by security interests in all of the assets of TCEH, and the guarantees are secured on a first-priority basis by all of the assets and equity interests held by the Guarantors, in each case, to the extent such assets and equity interests secure obligations under the TCEH Senior Secured Facilities (the TCEH Collateral), subject to certain exceptions and permitted liens.
The notes are (i) senior obligations and rank equally in right of payment with all senior indebtedness of TCEH, (ii) senior in right of payment to all existing or future unsecured and second-priority secured debt of TCEH to the extent of the value of the TCEH Collateral and (iii) senior in right of payment to any future subordinated debt of TCEH. These notes are effectively subordinated to all secured obligations of TCEH that are secured by assets other than the TCEH Collateral, to the extent of the value of the assets securing such obligations.
The guarantees of the TCEH Senior Secured Notes by the Guarantors are effectively senior to any unsecured and second-priority debt of the Guarantors to the extent of the value of the TCEH Collateral. The guarantees are effectively subordinated to all debt of the Guarantors secured by assets that are not part of the TCEH Collateral, to the extent of the value of the collateral securing that debt.
TCEH 15% Senior Secured Second Lien Notes (including Series B) — The principal amount of the TCEH 15% Senior Secured Second Lien Notes totals $1.571 billion with interest at a fixed rate of 15% per annum. The notes are fully and unconditionally guaranteed on a joint and several basis by EFCH and, subject to certain exceptions, each subsidiary of TCEH that guarantees the TCEH Senior Secured Facilities. The notes are secured, on a second-priority basis, by security interests in all of the assets of TCEH, and the guarantees (other than the guarantee of EFCH) are secured on a second-priority basis by all of the assets and equity interests of all of the Guarantors other than EFCH (collectively, the Subsidiary Guarantors), in each case, to the extent such assets and security interests secure obligations under the TCEH Senior Secured Facilities on a first-priority basis, subject to certain exceptions (including the elimination of the pledge of equity interests of any Subsidiary Guarantor to the extent that separate financial statements would be required to be filed with the SEC for such Subsidiary Guarantor under Rule 3-16 of Regulation S-X) and permitted liens. The guarantee from EFCH is not secured.
The notes are senior obligations of the issuer and rank equally in right of payment with all senior indebtedness of TCEH, are senior in right of payment to all existing or future unsecured debt of TCEH to the extent of the value of the TCEH Collateral (after taking into account any first-priority liens on the TCEH Collateral) and are senior in right of payment to any future subordinated debt of TCEH. These notes are effectively subordinated to TCEH's obligations under the TCEH Senior Secured Facilities, the TCEH Senior Secured Notes and TCEH's commodity and interest rate hedges that are secured by a first-priority lien on the TCEH Collateral and any future obligations subject to first-priority liens on the TCEH Collateral, to the extent of the value of the TCEH Collateral, and to all secured obligations of TCEH that are secured by assets other than the TCEH Collateral, to the extent of the value of the assets securing such obligations.
The guarantees of the TCEH Senior Secured Second Lien Notes by the Subsidiary Guarantors are effectively senior to any unsecured debt of the Subsidiary Guarantors to the extent of the value of the TCEH Collateral (after taking into account any first-priority liens on the TCEH Collateral). These guarantees are effectively subordinated to all debt of the Subsidiary Guarantors secured by the TCEH Collateral on a first-priority basis or that is secured by assets that are not part of the TCEH Collateral, to the extent of the value of the collateral securing that debt. EFCH's guarantee ranks equally with its unsecured debt (including debt it guarantees on an unsecured basis) and is effectively subordinated to any of its secured debt to the extent of the value of the collateral securing that debt.
TCEH 10.25% Senior Notes (including Series B) and 10.50%/11.25% Senior Toggle Notes (collectively, the TCEH Senior Notes) — The principal amount of the TCEH Senior Notes totals $5.237 billion, including $363 million aggregate principal amount held by EFH Corp. and EFIH, and the notes are fully and unconditionally guaranteed on a joint and several unsecured basis by TCEH's direct parent, EFCH, and by each subsidiary that guarantees the TCEH Senior Secured Facilities. The TCEH 10.25% Notes bore interest at a fixed rate of 10.25% per annum. The TCEH Toggle Notes bore interest at a fixed rate of 10.50% per annum.
Material Cross Default/Acceleration Provisions — Certain of our financing arrangements contain provisions that result in an event of default if there were a failure under other financing arrangements to meet payment terms or to observe other covenants that could or does result in an acceleration of payments due. Such provisions are referred to as "cross default" or "cross acceleration" provisions. The Bankruptcy Filing triggered defaults on our debt obligations, but pursuant to the Bankruptcy Code, the creditors are stayed from taking any actions against the Debtors as a result of such defaults.

Interest_Expense_and_Related_C

Interest Expense and Related Charges	9 Months Ended
	Sep. 30, 2014
Interest Expense and Related Charges [Abstract]	'
Interest Expense and Related Charges	'
	INTEREST EXPENSE AND RELATED CHARGES
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Interest paid/accrued on debtor-in-possession financing	$	16		$	—		$	22		$	—
	Adequate protection amounts paid/accrued (a)	308			—			519			—
	Interest paid/accrued on pre-petition debt (including net amounts paid/accrued under interest rate swaps) (b)	3			688			883			2,042
	Interest related to pushed down debt	—			1			1			5
	Noncash realized net loss on termination of interest rate swaps (offset in unrealized net gain) (c)	—			—			1,225			—
	Unrealized mark-to-market net gain on interest rate swaps	—			(413		)	(1,290		)	(899		)
	Amortization of interest rate swap losses at dedesignation of hedge accounting	—			2			(1		)	6
	Amortization of fair value debt discounts resulting from purchase accounting	—			3			3			8
	Amortization of debt issuance, amendment and extension costs and discounts	1			64			86			195
	Capitalized interest	(3		)	(5		)	(14		)	(19		)
	Total interest expense and related charges	$	325		$	340		$	1,434		$	1,338
	____________
	(a)	Post-petition period only.
	(b)	Includes amounts related to interest rate swaps totaling $160 million for the three months ended September 30, 2013, and $193 million and $466 million for the nine months ended September 30, 2014 and 2013, respectively. Of the $193 million for the nine months ended September 30, 2014, $127 million represents matured positions that have not been settled in cash and is included in the liability arising from the termination of TCEH interest rate swaps discussed in Note 12.
	(c)	See Note 12.
	Interest expense for the three and nine months ended September 30, 2014 includes interest paid and accrued on debtor-in-possession financing (see Note 5), as well as adequate protection amounts paid and accrued, as approved by the Bankruptcy Court in June 2014 for the benefit of secured creditors of (a) $22.635 billion principal amount of outstanding borrowings from the TCEH Senior Secured Facilities, (b) $1.750 billion principal amount of outstanding TCEH Senior Secured Notes and (c) the $1.235 billion net liability related to the terminated TCEH interest rate swaps and natural gas hedging positions (see Note 12), in exchange for their consent to the senior secured, super-priority liens contained in the TCEH DIP Facility and any diminution in value of their interests in the pre-petition collateral from the Petition Date. Additionally, interest expense for the nine months ended September 30, 2014 includes interest paid and accrued on all pre-petition debt for the period prior to the Petition Date. The weighted average interest rate applicable to the adequate protection amounts paid/accrued at September 30, 2014 is 4.65% (one-month LIBOR plus 4.50%). In connection with the completion of a plan of reorganization of the Debtors, the amount of adequate protection payments will be "trued-up" to reflect the valuation of the TCEH Debtors determined in connection with confirmation of the plan of reorganization by the Bankruptcy Court.
	The Bankruptcy Code generally restricts payment of interest on pre-petition debt, subject to certain exceptions. However, the Bankruptcy Court ordered the payment of adequate protection amounts as discussed above. Other than these amounts ordered by the Bankruptcy Court, effective April 29, 2014, the company discontinued recording interest expense on outstanding pre-petition debt classified as liabilities subject to compromise (LSTC). Contractual interest represents amounts due under the contractual terms of the outstanding debt (or upon approval by the Bankruptcy Court, at the federal judgment rate), including debt subject to compromise during the Chapter 11 Cases. Interest expense as calculated under the contractual terms of EFCH's debt, all of which is subject to compromise, totaled $516 million for the three months ended September 30, 2014 and $874 million for the post-petition period through September 30, 2014. These amounts exceeded interest expense recorded of $293 million for the three months ended September 30, 2014 and $494 million for the post-petition period through September 30, 2014 by $223 million and $380 million, respectively. Interest expense recorded represented adequate protection amounts since the Bankruptcy Filing allowed by the Bankruptcy Court. For the three and nine months ended September 30, 2014, adequate protection paid/accrued excludes $15 million and $25 million, respectively, related to the TCEH first-lien interest rate and commodity hedge claims (see Note 12), as such amounts are not included in contractual interest amounts presented above.

Commitments_And_Contingencies

Commitments And Contingencies	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments And Contingencies	'
	COMMITMENTS AND CONTINGENCIES
	Guarantees
	We have entered into contracts that contain guarantees to unaffiliated parties that could require performance or payment under certain conditions. Material guarantees are discussed below.
	See Notes 5 and 7 for discussion of guarantees and security for certain of our post-petition and pre-petition debt.
	Letters of Credit
	At September 30, 2014, TCEH had outstanding letters of credit under its post-petition and pre-petition credit facilities totaling $538 million as follows:
	•	$334 million to support commodity risk management and trading margin requirements in the normal course of business, including over-the-counter hedging transactions and collateral postings with ERCOT;
	•	$62 million to support TCEH's REP financial requirements with the PUCT, and
	•	$142 million for other credit support requirements.
	The automatic stay under the Bankruptcy Code does not apply to letters of credit issued under the pre-petition credit facility and third parties may draw if the terms of a particular letter of credit so provide. See Note 7 for discussion of letter of credit draws in 2014.
	Litigation
	Aurelius Capital Master, Ltd. and ACP Master, Ltd. (Aurelius) filed a lawsuit in March 2013, amended in May 2013, in the US District Court for the Northern District of Texas (Dallas Division) against EFCH as a nominal defendant and each of the current directors and a former director of EFCH. In the lawsuit, Aurelius, as a creditor under the TCEH Senior Secured Facilities and certain TCEH secured bonds, both of which are guaranteed by EFCH, filed a derivative claim against EFCH and its directors. Aurelius alleged that the directors of EFCH breached their fiduciary duties to EFCH and its creditors, including Aurelius, by permitting TCEH to make certain loans "without collecting fair and reasonably equivalent value." The lawsuit sought recovery for the benefit of EFCH. EFCH and the directors filed a motion to dismiss this lawsuit in June 2013. In January 2014, the district court granted the motion to dismiss and in February 2014 entered final judgment dismissing the lawsuit. Aurelius has appealed the district court's judgment to the US Court of Appeals for the Fifth Circuit (Fifth Circuit Court). We cannot predict the outcome of this proceeding, including the financial effects, if any.
	Litigation Related to Generation Facilities — In November 2010, an administrative appeal challenging the decision of the TCEQ to renew and amend Oak Grove Management Company LLC's (Oak Grove) (a wholly owned subsidiary of TCEH) Texas Pollutant Discharge Elimination System (TPDES) permit related to water discharges was filed by Robertson County: Our Land, Our Lives and Roy Henrichson in the Travis County, Texas District Court. Plaintiffs sought a reversal of the TCEQ's order and a remand back to the TCEQ for further proceedings. The district court affirmed the TCEQ's issuance of the TPDES permit to Oak Grove. In December 2012, plaintiffs appealed the district court's decision to the Third Court of Appeals in Austin, Texas. Oral argument was held in April 2014. In June 2014, the Third Court of Appeals issued its opinion affirming the district court's judgment and the TCEQ's decision. Plaintiffs sought rehearing by the Third Court of Appeals, which was denied in July 2014. In July 2014, the Third Court of Appeals issued a replacement opinion again affirming TCEQ's issuance of the permit. The plaintiffs' deadline to seek further review of the decision expired on September 30, 2014, thus, the case has been resolved in favor of Oak Grove.
	In May 2012, the Sierra Club filed a lawsuit in the US District Court for the Western District of Texas (Waco Division) against EFH Corp. and Luminant Generation Company LLC (a wholly owned subsidiary of TCEH) for alleged violations of the Clean Air Act (CAA) at Luminant's Big Brown generation facility. The Big Brown trial was held in February 2014. In pre-trial filings submitted in January 2014, the Sierra Club stated it was seeking over $337 million in civil penalties for the alleged violations and injunctive relief. In March 2014, the district court entered final judgment denying all of the Sierra Club's claims and all relief requested by the Sierra Club. The Sierra Club has appealed the district court's decision to the Fifth Circuit Court. In August 2014, the district court ordered the Sierra Club to pay$6.4 million in Luminant's attorney and expert witness fees. The Sierra Club has appealed to the Fifth Circuit Court the district court's final order granting Luminant's motion for the fees.
	In September 2010, the Sierra Club filed a lawsuit in the US District Court for the Eastern District of Texas (Texarkana Division) against EFH Corp. and Luminant Generation Company LLC for alleged violations of the CAA at Luminant's Martin Lake generation facility. In April 2014, the Martin Lake trial setting of May 2014 was vacated by the district court so that the district court could consider the effects of the decision in the Big Brown case. The Sierra Club has stated that it intends to ask the district court in this case to impose civil penalties of approximately $147 million. The Sierra Club has also stated that the district court can impose the maximum civil penalties available under the CAA to the government of up to $32,500 to $37,500 per day for each alleged violation depending on the date of the alleged violation. In addition, the Sierra Club has requested injunctive relief, including the installation of new emissions control equipment at the plant. An adverse outcome could require substantial capital expenditures that cannot be determined at this time and could possibly require payment of substantial penalties. While we are unable to estimate any possible loss or predict the outcome of the Martin Lake case, we believe that, as the judge ruled in the Big Brown case, the Sierra Club's claims are without merit, and we intend to vigorously defend the lawsuit.
	In addition, in December 2010 and again in October 2011, the Sierra Club informed Luminant that it may sue Luminant for allegedly violating CAA provisions in connection with Luminant's Monticello generation facility. In May 2012, the Sierra Club informed us that it may sue us for allegedly violating CAA provisions in connection with Luminant's Sandow 4 generation facility. While we cannot predict whether the Sierra Club will actually file suit regarding Monticello or Sandow 4 or the outcome of any resulting proceedings, we believe we have complied with the requirements of the CAA at all of our generation facilities.
	The affirmative claims asserted against EFH Corp. and Luminant Generation Company LLC described above were automatically stayed as a result of the Bankruptcy Filing. The matters will be subject to resolution in accordance with the Bankruptcy Code and the orders of the Bankruptcy Court.
	Litigation Related to EPA Reviews — In June 2008, the EPA issued an initial request for information to TCEH under the EPA's authority under Section 114 of the CAA. The stated purpose of the request is to obtain information necessary to determine compliance with the CAA, including New Source Review Standards and air permits issued by the TCEQ for the Big Brown, Monticello and Martin Lake generation facilities. In April 2013, we received an additional information request from the EPA under Section 114 related to the Big Brown, Martin Lake and Monticello facilities as well as an initial information request related to the Sandow 4 generation facility. Historically, as the EPA has pursued its New Source Review enforcement initiative, companies that have received a large and broad request under Section 114, such as the request received by TCEH, have in many instances subsequently received a notice of violation from the EPA, which has in some cases progressed to litigation or settlement.
	In July 2012, the EPA sent us a notice of violation alleging noncompliance with the CAA's New Source Review Standards and the air permits at our Martin Lake and Big Brown generation facilities. In September 2012, we filed a petition for review in the Fifth Circuit Court seeking judicial review of the EPA's notice of violation. Given recent legal precedent subjecting agency orders like the notice of violation to judicial review, we filed the petition for review to preserve our ability to challenge the EPA's issuance of the notice and its defects. In October 2012, the EPA filed a motion to dismiss our petition. In December 2012, the Fifth Circuit Court issued an order that delayed a ruling on the EPA's motion to dismiss until after the case was fully briefed and oral argument held.
	In July 2013, the EPA sent us a second notice of violation alleging noncompliance with the CAA's New Source Review Standards at our Martin Lake and Big Brown generation facilities, which the EPA said "superseded" its July 2012 notice. In July 2013, we filed a petition for review in the Fifth Circuit Court seeking judicial review of the EPA's July 2013 notice of violation. In September 2013, the Fifth Circuit Court consolidated the petitions for review of the July 2012 and July 2013 notices of violation. Oral argument was heard in June 2014. In July 2014, the Fifth Circuit Court ruled that our challenges to the notices of violation must first be heard by the district court and may be presented as defenses to the EPA's civil enforcement lawsuit discussed below.
	In August 2013, the US Department of Justice, acting as the attorneys for the EPA, filed a civil enforcement lawsuit against Luminant Generation Company LLC and Big Brown Power Company LLC in federal district court in Dallas, alleging violations of the CAA at our Big Brown and Martin Lake generation facilities. In September 2013, we filed a motion to stay this lawsuit pending the outcome of the Fifth Circuit Court's review of the July 2012 and July 2013 notices of violation. In January 2014, the district court granted our motion to stay the lawsuit until the Fifth Circuit Court resolved our petitions for review of the July 2012 and July 2013 notices of violation. In July 2014, the district court lifted the stay of the lawsuit. We believe that we have complied with all requirements of the CAA and intend to vigorously defend against these allegations. The lawsuit requests the maximum civil penalties available under the CAA to the government of up to $32,500 to $37,500 per day for each alleged violation, depending on the date of the alleged violation, and injunctive relief, including an order requiring the installation of best available control technology at the affected units. An adverse outcome could require substantial capital expenditures that cannot be determined at this time and could possibly require the payment of substantial penalties. We cannot predict the outcome of these proceedings, including the financial effects, if any.
	Cross-State Air Pollution Rule (CSAPR)
	In July 2011, the EPA issued the CSAPR, compliance with which would have required significant additional reductions of sulfur dioxide (SO2) and nitrogen oxide (NOx) emissions from our fossil fueled generation units. In September 2011, we filed a petition for review in the US Court of Appeals for the District of Columbia Circuit (D.C. Circuit Court) challenging the CSAPR as it applies to Texas. If the CSAPR had taken effect at that time, it would have caused us to, among other actions, idle two lignite/coal fueled generation units and cease certain lignite mining operations by the end of 2011.
	In February 2012, the EPA released a final rule (Final Revisions) and a proposed rule revising certain aspects of the CSAPR, including increases in the emissions budgets for Texas and our generation assets as compared to the July 2011 version of the rule. In April 2012, we filed in the D.C. Circuit Court a petition for review of the Final Revisions on the ground, among others, that the rules do not include all of the budget corrections we requested from the EPA. The parties to the case agreed that the case should be stayed pending the conclusion of the CSAPR rehearing proceeding discussed below. In June 2012, the EPA finalized the proposed rule (Second Revised Rule). As compared to the proposed revisions to the CSAPR issued by the EPA in October 2011, the Final Revisions and the Second Revised Rule finalize emissions budgets for our generation assets that are approximately 6% lower for SO2, 3% higher for annual NOx and 2% higher for seasonal NOx.
	In August 2012, the D.C. Circuit Court vacated the CSAPR, remanding it to the EPA for further proceedings. The D.C. Circuit Court's order stated that the EPA was expected to continue administering the CAIR (the predecessor rule to the CSAPR) pending the EPA's further consideration of the rule. In March 2013, the EPA and certain other parties that supported the CSAPR submitted petitions to the US Supreme Court seeking its review of the D.C. Circuit Court's decision. The US Supreme Court granted review of the D.C. Circuit Court's decision in June 2013 and heard oral arguments in December 2013. In April 2014, the US Supreme Court issued its opinion in the CSAPR litigation, reversing the D.C. Circuit Court's decision in which that court vacated the CSAPR, but clarifying that the EPA may not "over-control" upwind states by requiring those states to make emission reductions in excess of what is necessary for downwind states to attain applicable air quality standards. The US Supreme Court remanded the case to the D.C. Circuit Court for further proceedings consistent with its opinion. Additionally, there are several issues that the parties challenging the CSAPR had previously raised but that the D.C. Circuit did not resolve in its first opinion and that may now be decided on remand. In June 2014, the D.C. Circuit Court directed that the parties file motions to govern further proceedings. While the US Supreme Court's ruling did not disturb the stay entered by the D.C. Circuit Court in December 2011, in June 2014 the EPA filed a motion in the D.C. Circuit Court seeking to lift the stay. In July 2014, we filed a motion for summary vacatur of the CSAPR budgets for Texas, requesting that the D.C. Circuit Court remand Texas's CSAPR emission budgets to the EPA to develop a valid budget that does not require Texas to reduce emissions in excess of what is necessary for downwind areas to comply with air quality standards and that Texas's emissions should continue to be governed by CAIR in the interim. In July 2014, we along with other petitioners filed an opposition to the EPA's motion to lift the stay. In October 2014, the D.C. Circuit Court entered an order granting the EPA's motion to lift the stay, denying Luminant's and Texas's motions for summary vacatur, establishing a briefing format and schedule for further proceedings in the case, and scheduling the case for oral argument in March 2015. Based on the D.C. Circuit Court's order, we believe that the CSAPR will go into effect on January 1, 2015 as the rule would have been implemented on January 1, 2012 had the D.C. Circuit Court not granted the stay in December 2011, but including changes to the budgets and the program that were implemented in rulemakings finalized by the EPA in February and June 2012. While we cannot predict the outcome of future proceedings related to the CSAPR, based upon our current operating plans, including Mercury and Air Toxics Standard (MATS) compliance efforts, we do not believe that the D.C. Circuit Court's decision to lift the stay for the CSAPR will cause any material operational, financial or compliance issues for us.
	State Implementation Plan (SIP)
	In September 2010, the EPA disapproved a portion of the SIP pursuant to which the TCEQ implements its program to achieve the requirements of the CAA. The EPA disapproved the Texas standard permit for pollution control projects (PCP). We hold several permits issued pursuant to the TCEQ standard permit conditions for pollution control projects. We challenged the EPA's disapproval by filing a lawsuit in the Fifth Circuit Court arguing that the TCEQ's adoption of the standard permit conditions for pollution control projects was consistent with the CAA. In March 2012, the Fifth Circuit Court vacated the EPA's disapproval of the Texas standard permit for pollution control projects and remanded the matter to the EPA for expedited reconsideration. In September 2013, the State of Texas filed a motion with the Fifth Circuit Court requesting that the Court amend and enforce its judgment in this case by requiring the EPA to satisfy the Court's judgment by taking action on the pending SIP revision regarding Texas's PCP standard permit. In February 2014, the Fifth Circuit Court ordered the EPA to issue a final rule on the standard permit for pollution control projects by May 2014. In May 2014, the EPA filed a notice in the Fifth Circuit Court that they complied with the Court's mandate and issued the final approval of Texas' PCP standard permit.
	In November 2010, the EPA partially approved and partially disapproved a portion of the SIP under which the TCEQ had been phasing out a long-standing exemption for certain emissions that unavoidably occur during upsets and startup, shutdown and maintenance activities and replacing that exemption with a more limited affirmative defense that was phased out and replaced by TCEQ-issued generation facility-specific permit conditions. We, like many other electricity generation facility operators in Texas, have asserted applicability of the exemption or affirmative defense, and the TCEQ has concurred with that assertion. We have also applied for and received the generation facility-specific permit amendments. The EPA's partial approval and partial disapproval were challenged in the Fifth Circuit Court. We challenged the EPA's disapproval of Texas' affirmative defense for planned maintenance, startup and shutdown. The Fifth Circuit Court denied the challenge and ruled that the EPA's actions were in accordance with the Clean Air Act, including affirming the EPA's approval of Texas' SIP affirmative defense against civil penalties in the EPA enforcement actions and citizen suits for upsets and unplanned startup, shutdown and maintenance events.
	In February 2013, the EPA proposed a rule requiring certain states to replace SIP exemptions for excess emissions during malfunctions with an affirmative defense. Texas was not included in that original proposal since it already had an EPA-approved affirmative defense provision in its SIP. The 2013 EPA proposal was in response to a petition for rulemaking filed by the Sierra Club. In April 2014, the DC Circuit Court struck down an EPA regulation that contained an affirmative defense protecting Portland cement manufacturers from civil penalties during malfunctions. In its opinion, the DC Circuit Court acknowledged the Fifth Circuit's decision upholding the Texas SIP affirmative defenses and stated that it was not addressing whether an affirmative defense is appropriate in a SIP. However, the EPA has revised its 2013 proposal to extend the EPA's proposed findings of inadequacy to states that have affirmative defense provisions, including Texas. The EPA's revised proposal would require Texas to remove or replace its EPA-approved affirmative defense provisions for excess emissions during startup, shutdown and maintenance events. Comments on the EPA proposal are due in November 2014, and the EPA is expected to finalize the proposal in May 2015. We cannot predict the timing or outcome of future proceedings related to this rulemaking, including the requirements of any ultimately implemented rule, any compliance timeframe, or the financial effects, if any.
	In June 2014, the Sierra Club filed a petition in the DC Circuit Court seeking review of several EPA regulations containing affirmative defenses for malfunctions, including the Mercury and Air Toxics Standards rule for power plants. In the petition, the Sierra Club contends this affirmative defense is no longer permissible in light of the DC Circuit Court's decision in the Portland cement case. Luminant filed a motion to intervene in this case. In July 2014, the DC Circuit Court ordered the case stayed pending the EPA's consideration of a petition for administrative reconsideration of the regulations at issue. We cannot predict the timing or outcome of future proceedings related to this petition, the petition for administrative reconsideration that is pending before the EPA or the financial effects of these proceedings, if any.
	Other Matters
	We are involved in various legal and administrative proceedings in the normal course of business, the ultimate resolutions of which, in the opinion of management, are not anticipated to have a material effect on our results of operations, liquidity or financial condition.

Membership_InterestsEquity

Membership Interests/Equity	9 Months Ended
	Sep. 30, 2014
Stockholders' Equity Note [Abstract]	'
Membership Interests/Equity	'
	MEMBERSHIP INTERESTS/EQUITY
	Under applicable law, we are prohibited from paying any distribution to the extent that immediately following payment of such distribution, we would be insolvent. In addition, due to the Bankruptcy Filing, no distributions are eligible to be paid without the approval of the Bankruptcy Court.
	The agreement governing the TCEH DIP Facility generally restricts TCEH's ability to make distributions or loans to any of its parent companies or their subsidiaries unless such distributions or loans are expressly permitted under the agreement governing such facility.
	Noncontrolling Interests
	As discussed in Note 3, we consolidate a VIE, which results in a noncontrolling interest component of equity. Net loss attributable to the noncontrolling interests was immaterial for the nine months ended September 30, 2014 and 2013.
	Membership Interests/Equity
	In April 2013, EFCH was converted from a Texas corporation to a Delaware limited liability company. The following tables present the changes to membership interests/shareholders equity for the nine months ended September 30, 2014 and 2013:
	Nine Months Ended September 30, 2014
		EFCH Membership Interests
		Capital Account			Accumulated			Noncontrolling				Total
					Other			Interests				Membership Interests
					Comprehensive
					Income (Loss)
	Balance at December 31, 2013	$	(12,233	)	$	(36	)	$	1			$	(12,268	)
	Net loss	(1,168		)	—			—				(1,168		)
	Effect of stock-based incentive compensation plans	2			—			—				2
	Net effect of cash flow hedges	—			1			—				1
	Investment by noncontrolling interests	—			—			1				1
	Effect of debt push-down from EFH Corp. (a)	16			—			—				16
	Other	—			—			(2		)		(2		)
	Balance at September 30, 2014	$	(13,383	)	$	(35	)	$	—			$	(13,418	)
	Nine Months Ended September 30, 2013
		EFCH Shareholder's Equity/Membership Interests
		Common			Retained			Membership Interests			Accumulated				Noncontrolling			Total
		Stock			Earnings						Other				Interests			Equity
					(Deficit)						Comprehensive
											Income (Loss)
	Balance at December 31, 2012	$	7,665		$	(18,129	)	$	—		$	(42	)		$	112		$	(10,394	)
	Net loss	—			(526		)	(160		)	—				—			(686		)
	Net effect of cash flow hedges	—			—			—			5				—			5
	Investment by noncontrolling interests	—			—			—			—				3			3
	Effect of debt push-down from EFH Corp. (a)	434			—			3			—				—			437
	Dissolution of TXU Receivables Company	—			—			—			—				(10		)	(10		)
	Capital structure conversion	(8,099		)	18,655			(10,556		)	—				—			—
	Other	—			—			2			—				—			2
	Balance at September 30, 2013	$	—		$	—		$	(10,711	)	$	(37	)		$	105		$	(10,643	)
	____________
	(a)	Represents the interest and income tax effects of debt pushed down from EFH Corp. (Note 7).

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	FAIR VALUE MEASUREMENTS
	Accounting standards related to the determination of fair value define fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between willing market participants at the measurement date. We use a "mid-market" valuation convention (the mid-point price between bid and ask prices) as a practical expedient to measure fair value for the majority of our assets and liabilities subject to fair value measurement on a recurring basis. We primarily use the market approach for recurring fair value measurements and use valuation techniques to maximize the use of observable inputs and minimize the use of unobservable inputs.
	We categorize our assets and liabilities recorded at fair value based upon the following fair value hierarchy:
	•	Level 1 valuations use quoted prices in active markets for identical assets or liabilities that are accessible at the measurement date. An active market is a market in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis. Our Level 1 assets and liabilities include exchange-traded commodity contracts. For example, some of our derivatives are NYMEX or ICE futures and swaps transacted through clearing brokers for which prices are actively quoted.
	•	Level 2 valuations use inputs that, in the absence of actively quoted market prices, are observable for the asset or liability, either directly or indirectly. Level 2 inputs include: (a) quoted prices for similar assets or liabilities in active markets, (b) quoted prices for identical or similar assets or liabilities in markets that are not active, (c) inputs other than quoted prices that are observable for the asset or liability such as interest rates and yield curves observable at commonly quoted intervals and (d) inputs that are derived principally from or corroborated by observable market data by correlation or other mathematical means. Our Level 2 valuations utilize over-the-counter broker quotes, quoted prices for similar assets or liabilities that are corroborated by correlations or other mathematical means, and other valuation inputs. For example, our Level 2 assets and liabilities include forward commodity positions at locations for which over-the-counter broker quotes are available.
	•	Level 3 valuations use unobservable inputs for the asset or liability. Unobservable inputs are used to the extent observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at the measurement date. We use the most meaningful information available from the market combined with internally developed valuation methodologies to develop our best estimate of fair value. For example, our Level 3 assets and liabilities include certain derivatives with values derived from pricing models that utilize multiple inputs to the valuations, including inputs that are not observable or easily corroborated through other means. See further discussion below.
	Our valuation policies and procedures are developed, maintained and validated by an EFH Corp. centralized risk management group that reports to the EFH Corp. Chief Financial Officer, who also functions as the Chief Risk Officer. Risk management functions include commodity price reporting and validation, valuation model validation, risk analytics, risk control, credit risk management and risk reporting.
	We utilize several different valuation techniques to measure the fair value of assets and liabilities, relying primarily on the market approach of using prices and other market information for identical and/or comparable assets and liabilities for those items that are measured on a recurring basis. These methods include, among others, the use of broker quotes and statistical relationships between different price curves.
	In utilizing broker quotes, we attempt to obtain multiple quotes from brokers (generally non-binding) that are active in the commodity markets in which we participate (and require at least one quote from two brokers to determine a pricing input as observable); however, not all pricing inputs are quoted by brokers. The number of broker quotes received for certain pricing inputs varies depending on the depth of the trading market, each individual broker's publication policy, recent trading volume trends and various other factors. In addition, for valuation of interest rate swaps, we used generally accepted interest rate swap valuation models utilizing month-end interest rate curves.
	Probable loss of default by either us or our counterparties is considered in determining the fair value of derivative assets and liabilities. These non-performance risk adjustments take into consideration credit enhancements and the credit risks associated with our credit standing and the credit standing of our counterparties (see Note 12 for additional information regarding credit risk associated with our derivatives). We utilize published credit ratings, default rate factors and debt trading values in calculating these fair value measurement adjustments.
	Certain derivatives and financial instruments are valued utilizing option pricing models that take into consideration multiple inputs including, but not limited to, commodity prices, volatility factors, discount rates and other market based factors. Additionally, when there is not a sufficient amount of observable market data, valuation models are developed that incorporate proprietary views of market factors. Significant unobservable inputs used to develop the valuation models include volatility curves, correlation curves, illiquid pricing locations and credit/non-performance risk assumptions. Those valuation models are generally used in developing long-term forward price curves for certain commodities. We believe the development of such curves is consistent with industry practice; however, the fair value measurements resulting from such curves are classified as Level 3.
	The significant unobservable inputs and valuation models are developed by employees trained and experienced in market operations and fair value measurements and validated by the company's risk management group, which also further analyzes any significant changes in Level 3 measurements. Significant changes in the unobservable inputs could result in significant upward or downward changes in the fair value measurement.
	With respect to amounts presented in the following fair value hierarchy tables, the fair value measurement of an asset or liability (e.g., a contract) is required to fall in its entirety in one level, based on the lowest level input that is significant to the fair value measurement. Certain assets and liabilities would be classified in Level 2 instead of Level 3 of the hierarchy except for the effects of credit reserves and non-performance risk adjustments, respectively. Assessing the significance of a particular input to the fair value measurement in its entirety requires judgment, considering factors specific to the asset or liability being measured.
	Assets and liabilities measured at fair value on a recurring basis consisted of the following:
	30-Sep-14
		Level 1			Level 2				Level 3 (a)				Reclassification (b)				Total
	Assets:
	Commodity contracts	$	80		$	23			$	37			$	1			$	141
	Nuclear decommissioning trust – equity securities (c)	358			207				—				—				565
	Nuclear decommissioning trust – debt securities (c)	—			294				—				—				294
	Total assets	$	438		$	524			$	37			$	1			$	1,000
	Liabilities:
	Commodity contracts	$	97		$	10			$	8			$	1			$	116
	Total liabilities	$	97		$	10			$	8			$	1			$	116
	31-Dec-13
		Level 1			Level 2				Level 3 (a)				Reclassification (b)				Total
	Assets:
	Commodity contracts	$	161		$	570			$	57			$	—			$	788
	Nuclear decommissioning trust – equity securities (c)	330			191				—				—				521
	Nuclear decommissioning trust – debt securities (c)	—			270				—				—				270
	Total assets	$	491		$	1,031			$	57			$	—			$	1,579
	Liabilities:
	Commodity contracts	$	231		$	14			$	18			$	—			$	263
	Interest rate swaps	—			—				1,012				—				1,012
	Total liabilities	$	231		$	14			$	1,030			$	—			$	1,275
	_______________
	(a)	See table below for description of Level 3 assets and liabilities.
	(b)	Fair values are determined on a contract basis, but certain contracts result in a current asset and a noncurrent liability, or vice versa, as presented in the condensed consolidated balance sheets.
	(c)	The nuclear decommissioning trust investment is included in the investments line in the condensed consolidated balance sheets. See Note 14.
	Commodity contracts consist primarily of natural gas, electricity, fuel oil, uranium and coal agreements and include financial instruments entered into for hedging purposes as well as physical contracts that have not been designated "normal" purchases or sales. See Note 12 for further discussion regarding derivative instruments, including the termination of certain natural gas hedging agreements shortly after the Bankruptcy Filing.
	Interest rate swaps included variable-to-fixed rate swap instruments that hedged the interest costs of our debt as well as interest rate basis swaps designed to effectively reduce the hedged borrowing costs. See Note 12 for discussion of the termination of interest rate swaps shortly after the Bankruptcy Filing.
	Nuclear decommissioning trust assets represent securities held for the purpose of funding the future retirement and decommissioning of the nuclear generation units. These investments include equity, debt and other fixed-income securities consistent with investment rules established by the NRC and the PUCT.
	There were no significant transfers between Level 1 and Level 2 of the fair value hierarchy for the three and nine months ended September 30, 2014 and 2013. See the table of changes in fair values of Level 3 assets and liabilities below for discussion of transfers between Level 2 and Level 3 for the three and nine months ended September 30, 2014 and 2013.
	The following tables present the fair value of the Level 3 assets and liabilities by major contract type and the significant unobservable inputs used in the valuations at September 30, 2014 and December 31, 2013:
	30-Sep-14
			Fair Value
	Contract Type (a)		Assets			Liabilities				Total				Valuation Technique		Significant Unobservable Input		Range (b)
	Electricity purchases and sales		$	1		$	(1	)		$	—			Valuation Model		Illiquid pricing locations (c)		$30 to $50/MWh
																Hourly price curve shape (d)		$20 to $70/MWh
	Electricity spread options		5			—				5				Option Pricing Model		Gas to power correlation (e)		40% to 90%
																Power volatility (f)		10% to 40%
	Electricity congestion revenue rights		26			(3		)		23				Market Approach (g)		Illiquid price differences between settlement points (h)		$0.00 to $13.00
	Coal purchases		1			(4		)		(3		)		Market Approach (g)		Illiquid price variances between mines (i)		$0.00 to $1.00
																Illiquid pricing variances between heat content (l)		$0.30 to $0.40
	Other (n)		4			—				4
	Total		$	37		$	(8	)		$	29
	31-Dec-13
			Fair Value
	Contract Type (a)		Assets			Liabilities				Total				Valuation Technique		Significant Unobservable Input		Range (b)
	Electricity purchases and sales		$	2		$	(2	)		$	—			Valuation Model		Illiquid pricing locations (c)		$25 to $45/MWh
																Hourly price curve shape (d)		$20 to $70/MWh
	Electricity spread options		15			(2		)		13				Option Pricing Model		Gas to power correlation (e)		45% to 95%
																Power volatility (f)		10% to 30%
Electricity congestion revenue rights		35			(2		)		33				Market Approach (g)		Illiquid price differences between settlement points (h)		$0.00 to $25.00
Coal purchases		—			(11		)		(11		)		Market Approach (g)		Illiquid price variances between mines (i)		$0.00 to $1.00
															Probability of default (j)		0% to 40%
															Recovery rate (k)		0% to 40%
Interest rate swaps		—			(1,012		)		(1,012		)		Valuation Model		Nonperformance risk adjustment (m)		25% to 35%
Other (n)		5			(1		)		4
Total		$	57		$	(1,030	)		$	(973	)
____________
(a)	Electricity purchase and sales contracts include hedging positions in the ERCOT West, North and Houston regions, as well as power contracts, the valuations of which include unobservable inputs related to the hourly shaping of the price curve. Electricity spread option contracts consist of physical electricity call options. Electricity congestion revenue rights contracts consist of forward purchase contracts (swaps and options) used to hedge electricity price differences between settlement points within ERCOT. Coal purchase contracts relate to western (Powder River Basin) coal. TCEH used interest rate swaps to hedge exposure to its variable rate debt (see Note 12).
(b)	The range of the inputs may be influenced by factors such as time of day, delivery period, season and location.
(c)	Based on the historical range of forward average monthly ERCOT Hub and load zone prices.
(d)	Based on the historical range of forward average hourly ERCOT North Hub prices.
(e)	Estimate of the historical range based on forward natural gas and on-peak power prices for the ERCOT hubs most relevant to our spread options.
(f)	Based on historical forward price changes.
(g)	While we use the market approach, there is either insufficient market data to consider the valuation liquid or the significance of credit reserves or non-performance risk adjustments results in a Level 3 designation.
(h)	Based on the historical price differences between settlement points within the ERCOT Hubs and load zones.
(i)	Based on the historical range of price variances between mine locations.
(j)	Estimate of the range of probabilities of default based on past experience and the length of the contract as well as our and counterparties' credit ratings.
(k)	Estimate of the default recovery rate based on historical corporate rates.
(l)	Based on historical ranges of forward average prices between different heat contents (potential energy in coal for a given mass).
(m)	Estimate of nonperformance risk adjustment based on TCEH senior secured debt trading values.
(n)	Other includes contracts for ancillary services, natural gas, diesel options, coal options and weather dependent power options.
The following table presents the changes in fair value of the Level 3 assets and liabilities for the three and nine months ended September 30, 2014 and 2013.
	Three Months Ended September 30,							Nine Months Ended September 30,
	2014			2013				2014				2013
Net asset (liability) balance at beginning of period	$	45		$	88			$	(973	)		$	29
Total unrealized valuation losses	(3		)	(24		)		(97		)		(41		)
Purchases, issuances and settlements (a):
Purchases	10			6				39				66
Issuances	(1		)	—				(3		)		(6		)
Settlements/terminations	(21		)	(62		)		1,063				(45		)
Transfers into Level 3 (b)	—			(1,179		)		—				(1,178		)
Transfers out of Level 3 (b)	(1		)	—				—				4
Net change (c)	(16		)	(1,259		)		1,002				(1,200		)
Net asset (liability) balance at end of period	$	29		$	(1,171	)		$	29			$	(1,171	)
Unrealized valuation gains relating to instruments held at end of period	$	—		$	254			$	2			$	280
____________
(a)	Settlement amounts in 2014 reflect termination of TCEH interest rate swaps and include the nonperformance risk adjustment as discussed in Note 12. Settlements for all periods presented reflect reversals of unrealized mark-to-market valuations previously recognized in net income. Purchases and issuances reflect option premiums paid or received.
(b)	Includes transfers due to changes in the observability of significant inputs. Transfers in and out occur at the end of each quarter, which is when the assessments are performed. All Level 3 transfers in the periods presented are in and out of Level 2. Transfers into Level 3 during 2013 reflect a nonperformance risk adjustment in the valuation of the TCEH interest rate swaps, which were secured by a first-lien interest in the same assets of TCEH (on a pari passu basis) with the TCEH Senior Secured Facilities and the TCEH Senior Secured Notes (see Note 7). The amount of the nonperformance risk adjustment was calculated after consideration of derivative assets related to contracts with the same counterparties that are also secured by a first-lien interest in the assets of TCEH, and a master netting agreement in place that provides for netting and setoff of amounts related to these contracts.
(c)	Substantially all changes in values of commodity contracts are reported in the condensed statements of consolidated income (loss) in net gain (loss) from commodity hedging and trading activities. Changes in values of interest rate swaps transferred into Level 3 in third quarter 2013 are reported in the condensed statements of consolidated income (loss) in interest expense and related charges (see Note 12). Activity excludes changes in fair value in the month the positions settled as well as amounts related to positions entered into and settled in the same month.

Commodity_And_Other_Derivative

Commodity And Other Derivative Contractual Assets And Liabilities	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Commodity And Other Derivative Contractual Assets And Liabilities	'
	COMMODITY AND OTHER DERIVATIVE CONTRACTUAL ASSETS AND LIABILITIES
	Strategic Use of Derivatives
	We transact in derivative instruments, such as options, swaps, futures and forward contracts, to manage commodity price risk. Because certain of these instruments are deemed to be "forward contracts" under the Bankruptcy Code, they are not subject to the automatic stay, and counterparties may elect to terminate the agreements. Prior to the Petition Date, we had entered into interest rate swaps to manage our interest rate risk exposure. See Note 11 for a discussion of the fair value of derivatives.
	Commodity Hedging and Trading Activity — TCEH has natural gas hedging positions designed to reduce exposure to changes in future electricity prices due to changes in the price of natural gas, thereby hedging future revenues from electricity sales and related cash flows. In ERCOT, the wholesale price of electricity has generally moved with the price of natural gas. TCEH has entered into market transactions involving natural gas-related financial instruments and has sold forward natural gas through 2015 in order to hedge a portion of electricity price exposure related to expected lignite/coal and nuclear fueled generation. TCEH also enters into derivatives, including electricity, natural gas, fuel oil, uranium, emission and coal instruments, generally for short-term hedging purposes. To a limited extent, TCEH also enters into derivative transactions for proprietary trading purposes, principally in natural gas and electricity markets. Unrealized gains and losses arising from changes in the fair value of hedging and trading instruments as well as realized gains and losses upon settlement of the instruments are reported in the condensed statements of consolidated income (loss) in net gain (loss) from commodity hedging and trading activities.
	Interest Rate Swap Transactions — Interest rate swap agreements have been used to reduce exposure to interest rate changes by converting floating-rate debt to fixed rates, thereby hedging future interest costs and related cash flows. Interest rate basis swaps were used to effectively reduce the hedged borrowing costs. Unrealized gains and losses arising from changes in the fair value of the swaps as well as realized gains and losses upon settlement of the swaps were reported in the condensed statements of consolidated income (loss) in interest expense and related charges.
	Termination of Commodity Hedges and Interest Rate Swaps — Commodity hedges and interest rate swaps entered into prior to the Petition Date are deemed to be "forward contracts" under the Bankruptcy Code. The Bankruptcy Filing constituted an event of default under these arrangements, and in accordance with the contractual terms, counterparties terminated certain positions shortly after the Bankruptcy Filing. The positions terminated consisted almost entirely of natural gas hedging positions and interest rate swaps that were secured by a first-lien interest in the same assets of TCEH on a pari passu basis with the TCEH Senior Secured Facilities and the TCEH Senior Secured Notes. The terminated natural gas hedging positions represented approximately 70% of the commodity contracts derivative assets, and the terminated interest rate swaps represented all of the interest rate swap derivative assets and liabilities as of December 31, 2013 as presented in the table below.
	Entities with a first-lien security interest included counterparties to both our natural gas hedging positions and interest rate swaps, which had entered into master agreements that provided for netting and setoff of amounts related to these positions. Additionally, certain counterparties to only our interest rate swaps hold the same first-lien security interest. The net liability recorded upon the terminations totaled $1.108 billion, which represented a realized loss of $1.225 billion related to the interest rate swaps, net of a realized gain of $117 million related to the natural gas hedging positions. Additionally, net accounts payable amounts related to matured interest rate swaps of $127 million are also secured by the same first-lien secured interest. The total net liability of $1.235 billion is subject to the terms of settlement of TCEH's first-lien claims ultimately approved by the Bankruptcy Court and is reported in the condensed consolidated balance sheets as a liability subject to compromise.
	The derivative liability related to the TCEH interest rate swaps included a nonperformance risk adjustment (resulting in a Level 3 valuation). This fair value adjustment reflected the counterparties' exposure to our credit risk. The amount of the adjustment was after consideration of derivative assets related to natural gas hedging positions with the same counterparties. The difference between the net liability arising upon the termination of the interest rate swaps and the natural gas hedging positions and the net derivative assets and liabilities recorded totaled $277 million, substantially all of which represented the nonperformance risk adjustment, and is reported as a noncash charge in reorganization items in the condensed statements of consolidated income (loss) in accordance with ASC 852-10, Reorganizations (see Note 6).
	Financial Statement Effects of Derivatives
	Substantially all derivative contractual assets and liabilities arise from mark-to-market accounting consistent with accounting standards related to derivative instruments and hedging activities. The following tables provide detail of commodity and other derivative contractual assets and liabilities (with the column totals representing the net positions of the contracts) as reported in the condensed consolidated balance sheets at September 30, 2014 and December 31, 2013:
	30-Sep-14
		Derivative assets								Derivative liabilities
		Commodity contracts				Interest rate swaps				Commodity contracts				Interest rate swaps				Total
	Current assets	$	131			$	—			$	—			$	—			$	131
	Noncurrent assets	9				—				1				—				10
	Current liabilities	—				—				(112		)		—				(112		)
	Noncurrent liabilities	—				—				(4		)		—				(4		)
	Net assets (liabilities)	$	140			$	—			$	(115	)		$	—			$	25
	31-Dec-13
		Derivative assets								Derivative liabilities
		Commodity contracts				Interest rate swaps				Commodity contracts				Interest rate swaps				Total
	Current assets	$	784			$	—			$	—			$	—			$	784
	Noncurrent assets	4				—				—				—				4
	Current liabilities	—				—				(263		)		(1,012		)		(1,275		)
	Net assets (liabilities)	$	788			$	—			$	(263	)		$	(1,012	)		$	(487	)
	In consideration of the termination rights of counterparties arising from the Bankruptcy Filing, derivative liabilities classified as current at December 31, 2013 include $647 million that otherwise would be classified as noncurrent, essentially all of which relates to interest rate swaps.
	At September 30, 2014 and December 31, 2013, there were no derivative positions accounted for as cash flow or fair value hedges.
	The following table presents the pretax effect of derivatives on net income (gains (losses)), including realized and unrealized effects:
			Three Months Ended September 30,								Nine Months Ended September 30,
	Derivative (income statement presentation)		2014				2013				2014				2013
	Commodity contracts (Net gain (loss) from commodity hedging and trading activities) (a)		$	54			$	98			$	(114	)		$	54
	Interest rate swaps (Interest expense and related charges) (b)		—				253				(128		)		433
	Interest rate swaps (Reorganization items) (Note 6)		—				—				(277		)		—
	Net gain (loss)		$	54			$	351			$	(519	)		$	487
	_______________
	(a)	Amount represents changes in fair value of positions in the derivative portfolio during the period, as realized amounts related to positions settled are assumed to equal reversals of previously recorded unrealized amounts.
	(b)	Includes unrealized mark-to-market net gain (loss) as well as the net realized effect on interest paid/accrued, both reported in "Interest Expense and Related Charges" (see Note 8).
	The pretax effect (all losses) on net income and other comprehensive income (OCI) of derivative instruments previously accounted for as cash flow hedges was immaterial in both the three and nine months ended September 30, 2014 and 2013. There were no amounts recognized in OCI for the three and nine months ended September 30, 2014 and 2013.
	Accumulated other comprehensive income related to cash flow hedges totaled $35 million and $36 million in net losses (after-tax) at September 30, 2014 and December 31, 2013, respectively, substantially all of which relates to interest rate swaps previously accounted for as cash flow hedges. We expect that $2 million of net losses (after-tax) related to cash flow hedges included in accumulated other comprehensive income at September 30, 2014 will be reclassified into net income during the next twelve months as the related hedged transactions affect net income.
	Balance Sheet Presentation of Derivatives
	Consistent with elections under US GAAP to present amounts on a gross basis, we report derivative assets and liabilities in the condensed consolidated balance sheets without taking into consideration netting arrangements we have with counterparties. We may enter into offsetting positions with the same counterparty, resulting in both assets and liabilities. Volatility in underlying commodity prices can result in significant changes in assets and liabilities from period to period.
	Margin deposits that contractually offset these derivative instruments are reported separately in the condensed consolidated balance sheets. Margin deposits received from counterparties are either used for working capital or other corporate purposes or are deposited in a separate restricted cash account. At September 30, 2014 and December 31, 2013, all margin deposits held were unrestricted.
	We maintain standardized master netting agreements with certain counterparties that allow for the netting of positive and negative exposures. Generally, we utilize the International Swaps and Derivatives Association (ISDA) standardized contract for financial transactions, the Edison Electric Institute standardized contract for physical power transactions and the North American Energy Standards Board (NAESB) standardized contract for physical natural gas transactions. These contain credit enhancements that allow for the right to offset assets and liabilities and collateral received in order to reduce credit exposure between us and the counterparty. These agreements contain specific language related to margin requirements, monthly settlement netting, cross-commodity netting and early termination netting, which is negotiated with the contract counterparty.
	The following tables reconcile our derivative assets and liabilities as presented in the condensed consolidated balance sheets to net amounts after taking into consideration netting arrangements with counterparties and financial collateral:
	30-Sep-14
			Amounts Presented in Balance Sheet				Offsetting Instruments				Financial Collateral (Received) Pledged (b)				Net Amounts
	Derivative assets:
	Commodity contracts		$	141			$	(91	)		$	—			$	50
	Derivative liabilities:
	Commodity contracts		(116		)		91				17				(8		)
	Net amounts		$	25			$	—			$	17			$	42
	31-Dec-13
			Amounts Presented in Balance Sheet				Offsetting Instruments (a)				Financial Collateral (Received) Pledged (b)				Net Amounts
	Derivative assets:
	Commodity contracts		$	788			$	(389	)		$	(299	)		$	100
	Interest rate swaps		—				—				—				—
	Total derivative assets		788				(389		)		(299		)		100
	Derivative liabilities:
	Commodity contracts		(263		)		168				70				(25		)
	Interest rate swaps		(1,012		)		221				—				(791		)
	Total derivative liabilities		(1,275		)		389				70				(816		)
	Net amounts		$	(487	)		$	—			$	(229	)		$	(716	)
	____________
(a)	Offsetting instruments at December 31, 2013 with respect to commodity contracts include amounts related to interest rate swaps and vice versa. All amounts presented exclude trade accounts receivable and payable related to settled financial instruments.
(b)	Financial collateral consists entirely of cash margin deposits.
Derivative Volumes
The following table presents the gross notional amounts of derivative volumes at September 30, 2014 and December 31, 2013:
		30-Sep-14				31-Dec-13
Derivative type		Notional Volume								Unit of Measure
Interest rate swaps:
Floating/fixed (a)		$	—			$	30,790			Million US dollars
Basis		$	—			$	1,050			Million US dollars
Natural gas (b)		1,178				2,150				Million MMBtu
Electricity		18,580				16,482				GWh
Congestion Revenue Rights (c)		74,257				77,799				GWh
Coal		11				9				Million US tons
Fuel oil		14				26				Million gallons
Uranium		300				450				Thousand pounds
_______________
(a)	Amounts at December 31, 2013 include notional amount of interest rate swaps that had maturity dates through October 2014 as well as notional amount of swaps effective from October 2014 that had maturity dates through October 2017.
(b)	Represents gross notional forward sales, purchases and options transactions, locational basis swaps and other natural gas transactions.
(c)	Represents gross forward purchases associated with instruments used to hedge electricity price differences between settlement points within ERCOT.
See discussion above regarding termination of natural gas hedging and interest rate swap agreements shortly after the Bankruptcy Filing.
Credit Risk-Related Contingent Features of Derivatives
The agreements that govern our derivative instrument transactions may contain certain credit risk-related contingent features that could trigger liquidity requirements in the form of cash collateral, letters of credit or some other form of credit enhancement. Certain of these agreements require the posting of collateral if our credit rating is downgraded by one or more credit rating agencies; however, due to our credit ratings being below investment grade, substantially all of such collateral posting requirements have already been effective.
At both September 30, 2014 and December 31, 2013, the fair value of liabilities related to derivative instruments under agreements with credit risk-related contingent features that were not fully collateralized totaled $4 million. The liquidity exposure associated with these liabilities was reduced by cash and letter of credit postings with the counterparties totaling zero and $3 million at September 30, 2014 and December 31, 2013, respectively.
In addition, certain derivative agreements that are collateralized primarily with liens on certain of our assets include cross-default provisions that have resulted in the termination of such contracts as a result of the Bankruptcy Filing. Substantially all of the credit risk-related contingent features related to these derivatives, including amounts related to cross-default provisions, were triggered upon the Bankruptcy Filing, and substantially all such contracts had been cancelled at September 30, 2014. At September 30, 2014 and December 31, 2013, the fair value of derivative liabilities subject to such cross-default provisions totaled $1 million and $1.023 billion, respectively, before consideration of the collateral. Amounts at December 31, 2013 were largely related to interest rate swaps. The liquidity exposure associated with these liabilities totaled $1.140 billion at December 31, 2013 and was reduced by cash and letter of credit postings with the counterparties totaling $6 million. There was no liquidity exposure associated with these liabilities at September 30, 2014. See Note 7 for a description of other pre-petition obligations that are supported by liens on certain of our assets.
As discussed immediately above, the aggregate fair values of liabilities under derivative agreements with credit risk-related contingent features, including cross-default provisions, totaled $5 million and $1.027 billion at September 30, 2014 and December 31, 2013, respectively. These amounts are before consideration of cash and letter of credit collateral posted, net accounts receivable and derivative assets under netting arrangements and assets subject to related liens.
Some commodity derivative contracts contain credit risk-related contingent features that do not provide for specific amounts to be posted if the features are triggered. These provisions include material adverse change, performance assurance, and other clauses that generally provide counterparties with the right to request additional credit enhancements. The amounts disclosed above exclude credit risk-related contingent features that do not provide for specific amounts or exposure calculations.
See discussion at beginning of this note regarding termination of commodity hedges and interest rate swaps.
Concentrations of Credit Risk Related to Derivatives
TCEH has concentrations of credit risk with the counterparties to its derivative contracts. At September 30, 2014, total credit risk exposure to all counterparties related to derivative contracts totaled $243 million (including associated accounts receivable). The net exposure to those counterparties totaled $139 million at September 30, 2014 after taking into effect netting arrangements, setoff provisions and collateral, with the largest net exposure to a single counterparty totaling $44 million. At September 30, 2014, the credit risk exposure to the banking and financial sector represented 59% of the total credit risk exposure and 41% of the net exposure. The termination of natural gas hedging agreements by counterparties shortly after the Bankruptcy Filing did not significantly affect the net credit risk exposure amount presented.
Exposure to banking and financial sector counterparties is considered to be within an acceptable level of risk tolerance because all of this exposure is with counterparties with investment grade credit ratings. However, this concentration increases the risk that a default by any of these counterparties would have a material effect on our financial condition, results of operations and liquidity. The transactions with these counterparties contain certain provisions that would require the counterparties to post collateral in the event of a material downgrade in their credit rating.
We maintain credit risk policies with regard to our counterparties to minimize overall credit risk. These policies authorize specific risk mitigation tools including, but not limited to, use of standardized master agreements that allow for netting of positive and negative exposures associated with a single counterparty. Credit enhancements such as parent guarantees, letters of credit, surety bonds, liens on assets and margin deposits are also utilized. Prospective material changes in the payment history or financial condition of a counterparty or downgrade of its credit quality result in the reassessment of the credit limit with that counterparty. The process can result in the subsequent reduction of the credit limit or a request for additional financial assurances. An event of default by one or more counterparties could subsequently result in termination-related settlement payments that reduce available liquidity if amounts are owed to the counterparties related to the derivative contracts or delays in receipts of expected settlements if the counterparties owe amounts to us.

Related_Party_Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2014
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	RELATED-PARTY TRANSACTIONS
	The following represent our significant related-party transactions.
	•	TCEH's retail operations pay Oncor for services it provides, principally the delivery of electricity. Expenses recorded for these services, reported in fuel, purchased power costs and delivery fees, totaled $281 million and $273 million for the three months ended September 30, 2014 and 2013, respectively, and $746 million and $728 million for the nine months ended September 30, 2014 and 2013, respectively. The fees are based on rates regulated by the PUCT that apply to all REPs. The condensed consolidated balance sheets at September 30, 2014 and December 31, 2013 reflect amounts due currently to Oncor totaling $152 million and $135 million, respectively, (included in trade accounts and other payables to affiliates) largely related to these electricity delivery fees.
	•	Notes receivable from EFH Corp. were payable to TCEH on demand (TCEH Demand Notes) and arose from cash loaned for debt principal and interest payments and other general corporate purposes of EFH Corp. The TCEH Demand Notes were guaranteed by EFIH and EFCH on a senior unsecured basis. The TCEH Demand Notes were pledged as collateral under the TCEH Senior Secured Facilities. In January 2013, EFIH used $680 million of the proceeds from its August 2012 debt issuance to pay a dividend to EFH Corp., which EFH Corp. used with cash on hand to repay the entire balance of the TCEH Demand Notes. The average daily balance of the TCEH Demand Notes totaled $77 million for the nine months ended September 30, 2013. The TCEH Demand Notes carried interest at a rate based on the one-month LIBOR rate plus 5.00%, and interest income related to the TCEH Demand Notes totaled $3 million for the nine months ended September 30, 2013.
	•	EFCH (parent entity) has a demand note payable to EFH Corp., the proceeds from which were used to repay outstanding debt. The note totaled $107 million and $103 million at September 30, 2014 and December 31, 2013, respectively, and carried interest at a rate based on the one-month LIBOR rate plus 5.00%. Interest expense related to this note totaled $1 million for the three months ended September 30, 2013 and totaled $2 million and $3 million for the nine months ended September 30, 2014 and 2013, respectively. At September 30, 2014, the $107 million note payable as of the Petition Date is classified as a liability subject to compromise (LSTC), and interest expense on the note has not been recorded since the Petition Date.
	•	In the first quarter 2014, a cash contribution totaling $84 million was made to the retirement plan assets, of which $64 million was contributed by Oncor and $20 million was contributed by TCEH, resulting in the plan being fully funded as calculated under the provisions of ERISA. As a result of the Bankruptcy Filing, participants in the retirement plan who choose to retire would not be eligible for the lump sum payout option under the retirement plan unless the retirement plan is fully funded. The payment by TCEH was accounted for as an advance to EFH Corp. that will be settled as pension and OPEB expenses are allocated to TCEH in the normal course. The balance of the advance totaled $17 million at September 30, 2014, with $8 million recorded as a current asset and $9 million recorded as a noncurrent asset.
	Receivables from affiliates are measured at historical cost and primarily have consisted of notes receivable for cash loaned to EFH Corp. for debt principal and interest payments and other general corporate purposes of EFH Corp. as discussed above. TCEH reviews economic conditions, counterparty credit scores and historical payment activity to assess the overall collectability of its affiliated receivables. There were no credit loss allowances at September 30, 2014 and December 31, 2013.
	•	A subsidiary of EFH Corp. bills our subsidiaries for information technology, financial, accounting and other administrative services at cost. These charges, which are largely settled in cash and primarily reported in SG&A expenses, totaled $47 million and $59 million for the three months ended September 30, 2014 and 2013, respectively, and totaled $147 million and $176 million for the nine months ended September 30, 2014 and 2013, respectively. These amounts include allocated expense, which totaled zero and $10 million for the three months ended September 30, 2014 and 2013, respectively, and totaled $10 million and $29 million for the nine months ended September 30, 2014 and 2013, respectively, for management fees owed by EFH Corp. to the Sponsor Group. Effective with the Petition Date, EFH Corp. suspended allocations of such fees to EFCH. Fees accrued as of the Petition Date are classified as LSTC. Beginning in 2012, we reimburse a subsidiary of EFH Corp. for an allocated share of computer equipment purchased. Amounts paid for the three and nine months ended September 30, 2014 totaled zero and $3 million, respectively, and for the three and nine months ended September 30, 2013 totaled zero and $6 million, respectively, related to computer equipment and were accounted for as an intangible asset to be amortized over the life of the equipment. Previously, the depreciation of such equipment was included in the administrative cost billings.
	See Note 7 for discussion of a letter of credit issued by TCEH in 2014 to a subsidiary of EFH Corp. to secure its amounts payable to the subsidiary arising from recurring transactions in the normal course.
	•	In April 2014, prior to the Bankruptcy Filing, a subsidiary of EFH Corp. sold information technology assets to TCEH totaling $24 million. TCEH cash settled these transactions in April 2014. In the third quarter 2014, additional information technology assets totaling $7 million were sold to TCEH, and a subsidiary of EFH Corp. settled this obligation by drawing on the letter of credit issued by TCEH as discussed in Note 7. The assets are substantially for the use of TCEH and its subsidiaries.
	•	Under Texas regulatory provisions, the trust fund for decommissioning the Comanche Peak nuclear generation facility is funded by a delivery fee surcharge billed to REPs by Oncor, as collection agent, and remitted monthly to TCEH for contribution to the trust fund with the intent that the trust fund assets, reported in investments in our balance sheet, will ultimately be sufficient to fund the actual future decommissioning liability, reported in noncurrent liabilities in our balance sheet. The delivery fee surcharges remitted to TCEH totaled $5 million for both the three months ended September 30, 2014 and 2013 and totaled $13 million and $12 million for the nine months ended September 30, 2014 and 2013, respectively. Income and expenses associated with the trust fund and the decommissioning liability incurred by TCEH are offset by a net change in a receivable/payable that ultimately will be settled through changes in Oncor's delivery fee rates. At September 30, 2014 and December 31, 2013, the excess of the trust fund balance over the decommissioning liability resulted in a payable totaling $451 million and $400 million, respectively, reported in other noncurrent liabilities.
	•	EFH Corp. files consolidated federal income tax and Texas state margin tax returns that include our results; however, under a Federal and State Income Tax Allocation Agreement, our federal income tax and Texas margin tax expense and related balance sheet amounts, including income taxes payable to or receivable from EFH Corp., are recorded as if we file our own corporate income tax return. As of September 30, 2014, we had current income tax liabilities of $17 million and we had $535 million in noncurrent income tax liabilities payable to EFH Corp. as of the Petition Date reported as LSTC. As of December 31, 2013, we had current income tax liabilities of $21 million and noncurrent income tax liabilities of $535 million payable to EFH Corp. We made tax payments to EFH Corp. of $33 million and $134 million for the nine months ended September 30, 2014 and 2013, respectively. The 2013 payments included $84 million related to the 1997 through 2002 IRS appeals settlement.
	•	Certain transmission and distribution utilities in Texas have requirements in place to assure adequate creditworthiness of any REP to support the REP's obligation to collect securitization bond-related (transition) charges on behalf of the utility. Under these requirements, as a result of TCEH's credit rating being below investment grade, TCEH is required to post collateral support in an amount equal to estimated transition charges over specified time periods. Accordingly, at both September 30, 2014 and December 31, 2013, TCEH had posted letters of credit and/or cash in the amount of $9 million for the benefit of Oncor.
	•	Oncor and Texas Holdings agreed to the terms of a stipulation with major interested parties to resolve all outstanding issues in the PUCT review related to the Merger. As part of this stipulation, TCEH would be required to post a letter of credit in an amount equal to $170 million to secure its payment obligations to Oncor in the event, which has not occurred, two or more rating agencies downgrade Oncor's credit rating below investment grade.
	•	In 2007, TCEH entered into the TCEH Senior Secured Facilities with syndicates of financial institutions and other lenders. These syndicates included affiliates of GS Capital Partners, which is a member of the Sponsor Group. Affiliates of each member of the Sponsor Group have from time to time engaged in commercial banking transactions with us and/or provided financial advisory services to us, in each case in the normal course of business.
	•	Affiliates of GS Capital Partners were parties to certain commodity and interest rate hedging transactions with us in the normal course of business.
	•	Affiliates of the Sponsor Group have sold or acquired, and in the future may sell or acquire, debt or debt securities issued by us in open market transactions or through loan syndications.
	•	As a result of debt repurchase and exchange transactions in 2009 through 2011, EFH Corp. and EFIH held TCEH debt securities at both September 30, 2014 and December 31, 2013 as shown below (principal amounts). At September 30, 2014, the $382 million in notes payable as of the Petition Date is classified as LSTC.
		Principal Amount
	TCEH Senior Notes:
	Held by EFH Corp.	$	284
	Held by EFIH	79
	TCEH Term Loan Facilities:
	Held by EFH Corp.	19
	Total	$	382
	Interest expense on the notes totaled zero and $10 million for the three months ended September 30, 2014 and 2013, respectively, and totaled $13 million and $29 million for the nine months ended September 30, 2014 and 2013, respectively. Contractual interest, not paid or recorded, totaled $9 million for the three months ended September 30, 2014 and $16 million for the nine months ended September 30, 2014. See Note 8.
	See Notes 7 and 9 for discussion of guarantees and push down of certain EFH Corp. debt.

Supplementary_Financial_Inform

Supplementary Financial Information	9 Months Ended
	Sep. 30, 2014
Supplementary Financial Information [Abstract]	'
Supplementary Financial Information	'
	SUPPLEMENTARY FINANCIAL INFORMATION
	Other Income and Deductions
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Other income:
	Insurance/litigation settlements	$	—		$	—		$	—		$	2
	Gain on sale of land	2			—			2			—
	All other	3			1			9			5
	Total other income	$	5		$	1		$	11		$	7
	Other deductions:
	Write-off of deferred costs related to mining projects	$	9		$	—		$	30		$	—
	Other asset impairments	—			3			—			3
	All other	5			5			8			9
	Total other deductions	$	14		$	8		$	38		$	12
	Restricted Cash
		30-Sep-14						31-Dec-13
		Current			Noncurrent Assets			Current			Noncurrent Assets
		Assets						Assets
	Amounts related to TCEH's DIP Facility (Note 5)	$	—		$	184		$	—		$	—
	Amounts related to TCEH's pre-petition Letter of Credit Facility (Note 7) (a)	—			567			945			—
	Total restricted cash	$	—		$	751		$	945		$	—
	____________
	(a)	At December 31, 2013, in consideration of the Bankruptcy Filing, all amounts were classified as current. See Note 7 for discussion of letter of credit draws in 2014.
	Trade Accounts Receivable
		30-Sep-14			31-Dec-13
	Wholesale and retail trade accounts receivable	$	940		$	724
	Allowance for uncollectible accounts	(17		)	(14		)
	Trade accounts receivable — net	$	923		$	710
	Gross trade accounts receivable at September 30, 2014 and December 31, 2013 included unbilled revenues of $261 million and $272 million, respectively.
	Allowance for Uncollectible Accounts Receivable
		Nine Months Ended September 30,
		2014			2013
	Allowance for uncollectible accounts receivable at beginning of period	$	14		$	9
	Increase for bad debt expense	30			23
	Decrease for account write-offs	(27		)	(15		)
	Allowance for uncollectible accounts receivable at end of period	$	17		$	17
	Inventories by Major Category
		30-Sep-14			31-Dec-13
	Materials and supplies	$	214		$	216
	Fuel stock	125			154
	Natural gas in storage	31			29
	Total inventories	$	370		$	399
	Investments
		30-Sep-14			31-Dec-13
	Nuclear plant decommissioning trust	$	859		$	791
	Assets related to employee benefit plans, including employee savings programs, net of distributions	1			1
	Land	37			37
	Miscellaneous other	7			9
	Total investments	$	904		$	838
	Nuclear Decommissioning Trust — Investments in a trust that will be used to fund the costs to decommission the Comanche Peak nuclear generation plant are carried at fair value. Decommissioning costs are being recovered from Oncor's customers as a delivery fee surcharge over the life of the plant and deposited by TCEH in the trust fund. Income and expense associated with the trust fund and the decommissioning liability are offset by a corresponding change in a receivable/payable (currently a payable reported in noncurrent liabilities) that will ultimately be settled through changes in Oncor's delivery fees rates (see Note 13). The nuclear decommissioning trust fund is not a debtor under the Chapter 11 Cases. A summary of investments in the fund follows:
		30-Sep-14
		Cost (a)			Unrealized gain			Unrealized loss			Fair market
											value
	Debt securities (b)	$	282		$	12		$	—		$	294
	Equity securities (c)	264			305			(4		)	565
	Total	$	546		$	317		$	(4	)	$	859
		31-Dec-13
		Cost (a)			Unrealized gain			Unrealized loss			Fair market
											value
	Debt securities (b)	$	266		$	8		$	(4	)	$	270
	Equity securities (c)	255			271			(5		)	521
	Total	$	521		$	279		$	(9	)	$	791
	____________
(a)	Includes realized gains and losses on securities sold.
(b)	The investment objective for debt securities is to invest in a diversified tax efficient portfolio with an overall portfolio rating of AA or above as graded by S&P or Aa2 by Moody's Investors Services, Inc. The debt securities are heavily weighted with municipal bonds. The debt securities had an average coupon rate of 4.09% and 3.96% at September 30, 2014 and December 31, 2013, respectively, and an average maturity of 6 years at both September 30, 2014 and December 31, 2013.
(c)	The investment objective for equity securities is to invest tax efficiently and to match the performance of the S&P 500 Index.
Debt securities held at September 30, 2014 mature as follows: $102 million in one to five years, $57 million in five to ten years and $135 million after ten years.
The following table summarizes proceeds from sales of available-for-sale securities and the related realized gains and losses from such sales.
	Three Months Ended September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
Realized gains	$	1		$	1		$	2		$	2
Realized losses	$	—		$	(3	)	$	(1	)	$	(3	)
Proceeds from sales of securities	$	165		$	23		$	250		$	128
Investments in securities	$	(170	)	$	(28	)	$	(263	)	$	(140	)
Property, Plant and Equipment
At September 30, 2014 and December 31, 2013, property, plant and equipment of $16.9 billion and $17.6 billion, respectively, is stated net of accumulated depreciation and amortization of $9.0 billion and $8.1 billion, respectively.
Asset Retirement and Mining Reclamation Obligations
These liabilities primarily relate to nuclear generation plant decommissioning, land reclamation related to lignite mining, removal of lignite/coal fueled plant ash treatment facilities and generation plant asbestos removal and disposal costs. There is no earnings impact with respect to changes in the nuclear plant decommissioning liability, as all costs are recoverable through the regulatory process as part of Oncor's delivery fees.
The following table summarizes the changes to these obligations, reported in other current liabilities and other noncurrent liabilities and deferred credits in the condensed consolidated balance sheets, for the nine months ended September 30, 2014:
	Nuclear Plant Decommissioning			Mining Land Reclamation			Other			Total
Liability at December 31, 2013	$	390		$	98		$	36		$	524
Additions:
Accretion	17			17			2			36
Reductions:
Payments	—			(60		)	(2		)	(62		)
Adjustment to estimate of reclamation costs	—			(2		)	—			(2		)
Liability at September 30, 2014	407			53			36			496
Less amounts due currently	—			(33		)	—			(33		)
Noncurrent liability at September 30, 2014	$	407		$	20		$	36		$	463
Other Noncurrent Liabilities and Deferred Credits
The balance of other noncurrent liabilities and deferred credits consists of the following:
	30-Sep-14			31-Dec-13
Uncertain tax positions, including accrued interest	$	175		$	204
Asset retirement and mining reclamation obligations	463			440
Unfavorable purchase and sales contracts	572			589
Nuclear decommissioning cost over-recovery (Note 13)	451			400
Other, including retirement and other employee benefits	19			21
Total other noncurrent liabilities and deferred credits	$	1,680		$	1,654
Liability for Uncertain Tax Positions — In September 2014, EFH Corp. signed the final agreed Revenue Agent Report (RAR) with the IRS and associated documentation for the 2007 tax year. The Bankruptcy Court approved EFH Corp.'s signing of the RAR in October 2014. As a result of EFH Corp. receiving, agreeing to and signing the final RAR, we reduced the liability for uncertain tax positions by $31 million, resulting in a $16 million reclassification to the accumulated deferred income tax liability and the recording of a $15 million income tax benefit reflecting deductions related to lignite depletion and the release of accrued interest on uncertain tax positions. The adjustments did not result in a significant change to the originally filed tax return nor did it result in any cash tax or interest due.
Unfavorable Purchase and Sales Contracts — The amortization of unfavorable purchase and sales contracts totaled $6 million for both the three months ended September 30, 2014 and 2013 and totaled $17 million and $19 million for the nine months ended September 30, 2014 and 2013, respectively. See Note 4 for intangible assets related to favorable purchase and sales contracts.
The estimated amortization of unfavorable purchase and sales contracts for each of the next five fiscal years is as follows:
Year		Amount
2014		$	23
2015		$	24
2016		$	24
2017		$	24
2018		$	24
Fair Value of Debt
		30-Sep-14						31-Dec-13
Debt:		Carrying Amount			Fair			Carrying Amount			Fair
					Value						Value
Borrowings under debtor-in-possession credit facility (Note 5)		$	1,425		$	1,429		$	—		$	—
Pre-petition notes, loans and other debt reported as liabilities subject to compromise (Note 7)		$	31,896		$	19,345		$	—		$	—
Long-term debt, excluding capitalized lease obligations		$	81		$	91		$	—		$	—
Pre-petition notes, loans and other debt (excluding capitalized lease obligations) (Note 7)		$	—		$	—		$	32,184		$	17,985
We determine fair value in accordance with accounting standards as discussed in Note 11, and at September 30, 2014, our debt fair value represents Level 2 valuations. We obtain security pricing from an independent party who uses broker quotes and third-party pricing services to determine fair values. Where relevant, these prices are validated through subscription services such as Bloomberg.
Supplemental Cash Flow Information
	Nine Months Ended September 30,
	2014			2013
Cash payments related to:
Interest paid (a)	$	938		$	1,901
Capitalized interest	(14		)	(19		)
Interest paid (net of capitalized interest) (a)	$	924		$	1,882
Reorganization items (b)	$	41		$	—
Income taxes	$	33		$	134
Noncash investing and financing activities:
Effect of Parent's payment of interest on pushed down debt	$	—		$	21
Construction expenditures (c)	$	73		$	62
Contribution related to EFH Corp. stock-based compensation	$	2		$	1
Debt assumed related to acquisition of combustion turbine trust interest	$	—		$	(45	)
Reduction of debt pushed down from EFH Corp. (d)	$	—		$	(420	)
Debt extension transactions (e)	$	—		$	(340	)
____________
(a)	Net of amounts received under interest rate swap agreements. For the nine months ended September 30, 2014, this amount also includes amounts paid for adequate protection.
(b)	Represents cash payments for legal and other consulting services.
(c)	Represents end-of-period accruals.
(d)	For the nine months ended September 30, 2013, represents $838 million principal amount of EFH Corp. debt exchanged (at 50%) for EFIH debt.
(e)	Principal amounts of incremental loans under the TCEH Term Loan Facilities issued in consideration for the extension of the maturity date of such facilities.

Supplemental_Guarantor_Condens

Supplemental Guarantor Condensed Financial Information	9 Months Ended
	Sep. 30, 2014
Supplemental Guarantor Condensed Financial Information [Abstract]	'
Supplemental Guarantor Condensed Financial Information	'
	SUPPLEMENTAL GUARANTOR CONDENSED FINANCIAL INFORMATION
	At September 30, 2014 TCEH and TCEH Finance, as Co-Issuers, had outstanding $5.237 billion aggregate principal amount of pre-petition 10.25% Senior Notes Due 2015, 10.25% Senior Notes due 2015 Series B and Toggle Notes (collectively, the TCEH Senior Notes) and $1.571 billion aggregate principal amount of pre-petition 15% Senior Secured Second Lien Notes due 2021 and 15% Senior Secured Second Lien Notes due 2021 (Series B) (collectively, the TCEH Senior Secured Second Lien Notes). The TCEH Senior Notes and the TCEH Senior Secured Second Lien Notes are unconditionally guaranteed by EFCH and by each subsidiary (all 100% owned by TCEH) that guarantees the TCEH Senior Secured Facilities (collectively, the Guarantors). The guarantees issued by the Guarantors are full and unconditional, joint and several guarantees of the TCEH Senior Notes and the TCEH Senior Secured Second Lien Notes. The guarantees of the TCEH Senior Notes rank equally with any senior unsecured indebtedness of the Guarantors and rank effectively junior to all of the secured indebtedness of the Guarantors to the extent of the assets securing that indebtedness. The guarantees of the TCEH Senior Secured Second Lien Notes rank equally in right of payment with all senior indebtedness of TCEH, are senior in right of payment to all existing or future unsecured debt of TCEH to the extent of the value of the TCEH Collateral (after taking into account any first-priority liens on the TCEH Collateral) and are senior in right of payment to any future subordinated debt of TCEH. These notes are effectively subordinated to TCEH's obligations under the TCEH Senior Secured Facilities, the TCEH Senior Secured Notes and TCEH's commodity and interest rate hedges that were secured by a first-priority lien on the TCEH Collateral and any future obligations subject to first-priority liens on the TCEH Collateral, to the extent of the value of the TCEH Collateral (see Note 7). All other subsidiaries of EFCH, either direct or indirect, do not guarantee the TCEH Senior Notes or TCEH Senior Secured Second Lien Notes (collectively the Non-Guarantors). The indentures governing the TCEH Senior Notes and the TCEH Senior Secured Second Lien Notes contain certain restrictions, subject to certain exceptions, on EFCH's ability to pay dividends or make investments. See Note 7.
	The following tables have been prepared in accordance with Regulation S-X Rule 3-10, "Financial Statements of Guarantors and Issuers of Guaranteed Securities Registered or Being Registered" in order to present the condensed consolidating statements of income for the three and nine months ended September 30, 2014 and 2013 and of cash flows for the nine months ended September 30, 2014 and 2013 of EFCH (Parent), TCEH (Issuer), the Guarantors and the Non-Guarantors and the condensed consolidating balance sheets at September 30, 2014 and December 31, 2013 of the Parent, Issuer, the Guarantors and the Non-Guarantors. Investments in consolidated subsidiaries are accounted for under the equity method. The presentations reflect the application of SEC Staff Accounting Bulletin Topic 5J, "Push Down Basis of Accounting Required in Certain Limited Circumstances," including the effects of the push down of $30 million of the EFH Corp. pre-petition 10.875% Senior Notes and EFH Corp. pre-petition 11.25%/12.00% Senior Toggle Notes to the Parent at both September 30, 2014 and December 31, 2013 and the TCEH Senior Notes, TCEH Senior Secured Notes, TCEH Senior Secured Second Lien Notes and TCEH Senior Secured Facilities to the Other Guarantors at September 30, 2014 and December 31, 2013 (see Note 7). TCEH Finance's sole function is to be the co-issuer of the certain TCEH debt securities; therefore, it has no other independent assets, liabilities or operations. Amounts reported as advances to affiliates arise from recurring intercompany transactions among EFCH, TCEH and TCEH’s subsidiaries in the normal course of business. In consideration of the Bankruptcy Filing, the ultimate settlement of the advances is uncertain and is dependent on the Chapter 11 plan ultimately approved. Accordingly, as of September 30, 2014, the Other Guarantors' pre-petition advances from parent have been reclassified to membership interests as a noncash transaction.
	EFCH (parent entity) received no dividends/distributions from its consolidated subsidiaries for the three or nine months ended September 30, 2014 and 2013.
	ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
	A DEBTOR-IN-POSSESSION
	Condensed Consolidating Statements of Income (Loss)
	Three Months Ended September 30, 2014
	(millions of dollars)
		Parent			Issuer			Other			Non-			Eliminations			Consolidated
		Guarantor						Guarantors			guarantors
	Operating revenues	$	—		$	—		$	1,807		$	—		$	—		$	1,807
	Fuel, purchased power costs and delivery fees	—			—			(868		)	—			—			(868		)
	Net gain from commodity hedging and trading activities	—			—			75			—			—			75
	Operating costs	—			—			(204		)	—			—			(204		)
	Depreciation and amortization	—			—			(327		)	—			—			(327		)
	Selling, general and administrative expenses	—			—			(145		)	—			—			(145		)
	Franchise and revenue-based taxes	—			—			(18		)	—			—			(18		)
	Other income	—			—			5			—			—			5
	Other deductions	—			—			(14		)	—			—			(14		)
	Interest income	—			—			7			—			(7		)	—
	Interest expense and related charges	(2		)	(331		)	1			—			7			(325		)
	Reorganization items	—			(45		)	—			—			—			(45		)
	Income (loss) before income taxes	(2		)	(376		)	319			—			—			(59		)
	Income tax (expense) benefit	1			114			(99		)	—			5			21
	Equity earnings (losses) of subsidiaries	(37		)	225			—			—			(188		)	—
	Net income (loss)	(38		)	(37		)	220			—			(183		)	(38		)
	Other comprehensive income (loss)	—			—			—			—			—			—
	Comprehensive income (loss)	$	(38	)	$	(37	)	$	220		$	—		$	(183	)	$	(38	)
	ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
	A DEBTOR-IN-POSSESSION
	Condensed Consolidating Statements of Income (Loss)
	Three Months Ended September 30, 2013
	(millions of dollars)
		Parent			Issuer			Other			Non-			Eliminations			Consolidated
		Guarantor						Guarantors			guarantors
	Operating revenues	$	—		$	—		$	1,893		$	27		$	(27	)	$	1,893
	Fuel, purchased power costs and delivery fees	—			—			(852		)	—			—			(852		)
	Net gain from commodity hedging and trading activities	—			20			38			—			—			58
	Operating costs	—			—			(192		)	—			3			(189		)
	Depreciation and amortization	—			—			(332		)	1			—			(331		)
	Selling, general and administrative expenses	—			(14		)	(173		)	(11		)	23			(175		)
	Franchise and revenue-based taxes	—			—			(18		)	—			—			(18		)
	Other income	—			—			1			—			—			1
	Other deductions	—			—			(8		)	—			—			(8		)
	Interest income	—			62			206			—			(267		)	1
	Interest expense and related charges	(4		)	(541		)	(619		)	(4		)	828			(340		)
	Income (loss) before income taxes	(4		)	(473		)	(56		)	13			560			40
	Income tax (expense) benefit	1			165			46			(5		)	(190		)	17
	Equity earnings of subsidiaries	60			368			1			—			(429		)	—
	Net income (loss)	57			60			(9		)	8			(59		)	57
	Other comprehensive income	1			1			—			—			(1		)	1
	Comprehensive income (loss)	$	58		$	61		$	(9	)	$	8		$	(60	)	$	58
	ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
	A DEBTOR-IN-POSSESSION
	Condensed Consolidating Statements of Income (Loss)
	Nine Months Ended September 30, 2014
	(millions of dollars)
		Parent			Issuer			Other			Non-			Eliminations			Consolidated
		Guarantor						Guarantors			guarantors
	Operating revenues	$	—		$	—		$	4,731		$	—		$	—		$	4,731
	Fuel, purchased power costs and delivery fees	—			—			(2,256		)	—			—			(2,256		)
	Net loss from commodity hedging and trading activities	—			(90		)	(28		)	—			—			(118		)
Operating costs	—			—			(660		)	—			—			(660		)
Depreciation and amortization	—			—			(983		)	—			—			(983		)
Selling, general and administrative expenses	—			(29		)	(442		)	(2		)	—			(473		)
Franchise and revenue-based taxes	—			—			(54		)	—			—			(54		)
Other income	—			—			9			2			—			11
Other deductions	—			—			(38		)	—			—			(38		)
Interest income	1			80			270			—			(351		)	—
Interest expense and related charges	(9		)	(1,705		)	(803		)	—			1,083			(1,434		)
Reorganization items	—			(468		)	—			—			—			(468		)
Loss before income taxes	(8		)	(2,212		)	(254		)	—			732			(1,742		)
Income tax benefit	2			729			84			—			(241		)	574
Equity earnings (losses) of subsidiaries	(1,162		)	321			—			—			841			—
Net loss	(1,168		)	(1,162		)	(170		)	—			1,332			(1,168		)
Other comprehensive income	1			1			—			—			(1		)	1
Comprehensive loss	$	(1,167	)	$	(1,161	)	$	(170	)	$	—		$	1,331		$	(1,167	)
ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
A DEBTOR-IN-POSSESSION
Condensed Consolidating Statements of Income (Loss)
Nine Months Ended September 30, 2013
(millions of dollars)
	Parent			Issuer			Other			Non-			Eliminations			Consolidated
	Guarantor						Guarantors			guarantors
Operating revenues	$	—		$	—		$	4,572		$	59		$	(59	)	$	4,572
Fuel, purchased power costs and delivery fees	—			—			(2,175		)	—			—			(2,175		)
Net gain (loss) from commodity hedging and trading activities	—			(3		)	32			—			—			29
Operating costs	—			—			(690		)	—			5			(685		)
Depreciation and amortization	—			—			(1,011		)	(1		)	—			(1,012		)
Selling, general and administrative expenses	—			(49		)	(481		)	(25		)	53			(502		)
Franchise and revenue-based taxes	—			—			(51		)	—			—			(51		)
Other income	—			—			7			—			—			7
Other deductions	—			—			(12		)	—			—			(12		)
Interest income	1			182			591			—			(769		)	5
Interest expense and related charges	(15		)	(1,920		)	(1,842		)	(8		)	2,447			(1,338		)
Income (loss) before income taxes	(14		)	(1,790		)	(1,060		)	25			1,677			(1,162		)
Income tax benefit (expense)	7			630			420			(9		)	(572		)	476
Equity earnings (losses) of subsidiaries	(679		)	481			1			—			197			—
Net income (loss)	(686		)	(679		)	(639		)	16			1,302			(686		)
Other comprehensive income	5			5			—			—			(5		)	5
Comprehensive income (loss)	$	(681	)	$	(674	)	$	(639	)	$	16		$	1,297		$	(681	)
ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
A DEBTOR-IN-POSSESSION
Condensed Consolidating Statements of Cash Flows
Nine Months Ended September 30, 2014
(millions of dollars)
	Parent/			Issuer			Other			Non-			Eliminations			Consolidated
	Guarantor						Guarantors			guarantors
Cash provided by (used in) operating activities	$	(4	)	$	(1,122	)	$	1,514		$	(5	)	$	—		$	383
Cash flows – financing activities:
Proceeds from TCEH DIP Facility	—			1,425			—			—			—			1,425
Fees paid for TCEH DIP Facility	—			(87		)	—			—			—			(87		)
Notes/advances due to affiliates	8			1,121			—			—			(1,129		)	—
Repayments/repurchases of debt	(4		)	(203		)	(17		)	—			—			(224		)
Contributions from noncontrolling interests	—			—			—			1			—			1
Cash provided by (used in) financing activities	4			2,256			(17		)	1			(1,129		)	1,115
Cash flows – investing activities:
Capital expenditures	—			—			(254		)	—			—			(254		)
Nuclear fuel purchases	—			—			(76		)	—			—			(76		)
Settlements of notes due from affiliates	—			—			(1,146		)	—			1,129			(17		)
Increase in restricted cash related to TCEH DIP Facility	—			(184		)	—			—			—			(184		)
Purchase of right to use certain computer-related assets from parent	—			—			(3		)	—			—			(3		)
Proceeds from sales of assets	—			—			2			—			—			2
Reduction of restricted cash related to TCEH Letter of Credit Facility				378			—						—			378
Proceeds from sales of environmental allowances and credits	—			—			3			—			—			3
Purchases of environmental allowances and credits	—			—			(13		)	—			—			(13		)
Proceeds from sales of nuclear decommissioning trust fund securities	—			—			250			—			—			250
Investments in nuclear decommissioning trust fund securities	—			—			(263		)	—			—			(263		)
Other, net	—			—			11			—			—			11
Cash provided by (used in) investing activities	—			194			(1,489		)	—			1,129			(166		)
Net change in cash and cash equivalents	—			1,328			8			(4		)	—			1,332
Cash and cash equivalents – beginning balance	—			725			16			5			—			746
Cash and cash equivalents – ending balance	$	—		$	2,053		$	24		$	1		$	—		$	2,078
ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
A DEBTOR-IN-POSSESSION
Condensed Consolidating Statements of Cash Flows
Nine Months Ended September 30, 2013
(millions of dollars)
	Parent/			Issuer			Other			Non-			Eliminations			Consolidated
	Guarantor						Guarantors			guarantors
Cash provided by (used in) operating activities	$	(8	)	$	(1,764	)	$	1,736		$	(85	)	$	—		$	(121	)
Cash flows – financing activities:
Notes/advances due to affiliates	11			1,913			—			—			(1,920		)	4
Repayments/repurchases of long-term debt	(3		)	(64		)	(27		)	—			—			(94		)
Net short-term borrowings under accounts receivable securitization program	—			—			—			90			—			90
Contributions from noncontrolling interests	—			—			—			3			—			3
Other, net	—			—			—			(10		)	—			(10		)
Cash provided by (used in) financing activities	8			1,849			(27		)	83			(1,920		)	(7		)
Cash flows – investing activities:
Capital expenditures	—			—			(349		)	(4		)	—			(353		)
Nuclear fuel purchases	—			—			(59		)	—			—			(59		)
Notes due from affiliates	—			—			(1,222		)	—			1,920			698
Purchase of right to use certain computer-related assets from parent	—			—			(6		)	—			—			(6		)
Proceeds from sales of assets	—			—			3			—			—			3
Acquisition of combustion turbine trust interest	—			—			(40		)	—			—			(40		)
Purchases of environmental allowances and credits	—			—			(13		)	—			—			(13		)
Proceeds from sales of nuclear decommissioning trust fund securities	—			—			128			—			—			128
Investments in nuclear decommissioning trust fund securities	—			—			(140		)	—			—			(140		)
Other, net	—			—			(3		)	—			—			(3		)
Cash provided by (used in) investing activities	—			—			(1,701		)	(4		)	1,920			215
Net change in cash and cash equivalents	—			85			8			(6		)	—			87
Cash and cash equivalents – beginning balance	—			1,115			15			45			—			1,175
Cash and cash equivalents – ending balance	$	—		$	1,200		$	23		$	39		$	—		$	1,262
ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
A DEBTOR-IN-POSSESSION
Condensed Consolidating Balance Sheets
30-Sep-14
(millions of dollars)
	Parent			Issuer			Other			Non-guarantors			Eliminations			Consolidated
	Guarantor						Guarantors
ASSETS
Current assets:
Cash and cash equivalents	$	—		$	2,053		$	24		$	1		$	—		$	2,078
Advances to parent and affiliates	3			8			851			—			(854		)	8
Trade accounts receivable – net	—			—			923			—			—			923
Income taxes receivable	4			106			—			—			(110		)	—
Accounts receivable from affiliates	—			2			—			—			(2		)	—
Inventories	—			—			370			—			—			370
Commodity and other derivative contractual assets	—			—			131			—			—			131
Accumulated deferred income taxes	—			117			24			—			(24		)	117
Margin deposits related to commodity positions	—			—			64			—			—			64
Other current assets	—			3			51			—			—			54
Total current assets	7			2,289			2,438			1			(990		)	3,745
Restricted cash	—			751			—			—			—			751
Investments	(23,025		)	14,077			920			8			8,924			904
Property, plant and equipment – net	—			—			16,940			3			—			16,943
Advances to parent and affiliates	—			9			—			—			—			9
Goodwill	—			3,952			—			—			—			3,952
Identifiable intangible assets – net	—			—			1,616			—			—			1,616
Commodity and other derivative contractual assets	—			—			10			—			—			10
Accumulated deferred income taxes	—			550			—			14			(564		)	—
Other noncurrent assets	—			—			7			—			—			7
Total assets	$	(23,018	)	$	21,628		$	21,931		$	26		$	7,370		$	27,937
LIABILITIES AND MEMBERSHIP INTERESTS
Notes/advances from affiliates	$	—		$	854		$	—		$	—		$	(854	)	$	—
Trade accounts payable	—			1			433			—			—			434
Trade accounts and other payables to affiliates	—			—			181			2			(2		)	181
Commodity and other derivative contractual liabilities	—			—			112			—			—			112
Margin deposits related to commodity positions	—			—			3			—			—			3
Accumulated deferred income taxes	24			—			—			—			(24		)	—
Accrued income taxes payable to parent	—			—			127			—			(110		)	17
Accrued taxes other than income	—			—			86			—			—			86
Accrued interest	1			109			1			—			—			111
ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
A DEBTOR-IN-POSSESSION
Condensed Consolidating Balance Sheets
30-Sep-14
(millions of dollars)
	Parent			Issuer			Other			Non-guarantors			Eliminations			Consolidated
	Guarantor						Guarantors
Other current liabilities	$	12		$	64		$	213		$	—		$	—		$	289
Total current liabilities	37			1,028			1,156			2			(990		)	1,233
Accumulated deferred income taxes	50			—			2,645			—			294			2,989
Commodity and other derivative contractual liabilities	—			—			4			—			—			4
Borrowings under debtor-in-possession credit facility	—			1,425			—			—			—			1,425
Long-term debt, less amounts due currently	43			—			51			—			—			94
Liabilities subject to compromise	146			42,181			32,510			—			(40,907		)	33,930
Other noncurrent liabilities and deferred credits	6			18			1,656			—			—			1,680
Total liabilities	282			44,652			38,022			2			(41,603		)	41,355
Total membership interests	(23,300		)	(23,024		)	(16,091		)	24			48,973			(13,418		)
Total liabilities and membership interests	$	(23,018	)	$	21,628		$	21,931		$	26		$	7,370		$	27,937
ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
A DEBTOR-IN-POSSESSION
Condensed Consolidating Balance Sheets
31-Dec-13
(millions of dollars)
	Parent			Issuer			Other			Non-guarantors			Eliminations			Consolidated
	Guarantor						Guarantors
ASSETS
Current assets:
Cash and cash equivalents	$	—		$	725		$	16		$	5		$	—		$	746
Restricted cash	—			945			—			—			—			945
Advances to affiliates	5			—			191			—			(196		)	—
Trade accounts receivable – net	—			—			710			—			—			710
Income taxes receivable	—			—			240			—			(240		)	—
Accounts receivable from affiliates	—			8			—			—			(8		)	—
Inventories	—			—			399			—			—			399
Commodity and other derivative contractual assets	—			551			233			—			—			784
Accumulated deferred income taxes	—			117			28			—			(24		)	121
Margin deposits related to commodity positions	—			—			93			—			—			93
Other current assets	—			4			46			—			—			50
Total current assets	5			2,350			1,956			5			(468		)	3,848
Investments	(11,983		)	23,638			853			8			(11,678		)	838
Property, plant and equipment – net	—			—			17,646			3			—			17,649
Advances to affiliates	—			—			9,396			—			(9,396		)	—
Goodwill	—			3,952			—			—			—			3,952
Identifiable intangible assets – net	—			—			1,717			—			—			1,717
Commodity and other derivative contractual assets	—			—			4			—			—			4
Accumulated deferred income taxes	—			201			—			14			(215		)	—
Other noncurrent assets, principally unamortized amendment/issuance costs	—			776			787			—			(773		)	790
Total assets	$	(11,978	)	$	30,917		$	32,359		$	30		$	(22,530	)	$	28,798
LIABILITIES AND MEMBERSHIP INTERESTS
Current liabilities:
Borrowings under credit and other facilities	$	—		$	2,054		$	2,054		$	—		$	(2,054	)	$	2,054
Notes/advances from affiliates	—			9,592			—			—			(9,592		)	—
Debt held by affiliates	—			382			—			—			—			382
Notes, loans and other debt	96			29,612			28,750			—			(28,658		)	29,800
Trade accounts payable	—			3			378			—			—			381
Trade accounts and other payables to affiliates	—			—			169			3			(8		)	164
Notes payable to parent	103			—			—			—			—			103
Commodity and other derivative contractual liabilities	—			1,012			263			—			—			1,275
ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
A DEBTOR-IN-POSSESSION
Condensed Consolidating Balance Sheets
31-Dec-13
(millions of dollars)
	Parent			Issuer			Other			Non-guarantors			Eliminations			Consolidated
	Guarantor						Guarantors
Margin deposits related to commodity positions	$	—		$	299		$	3		$	—		$	—		$	302
Accumulated deferred income taxes	24			—			—			—			(24		)	—
Accrued income taxes payable to parent	2			259			—			—			(240		)	21
Accrued taxes other than income	—			—			120			—			—			120
Accrued interest	1			416			312			—			(310		)	419
Other current liabilities	—			—			272			—			—			272
Total current liabilities	226			43,629			32,321			3			(40,886		)	35,293
Accumulated deferred income taxes	62			—			2,748			—			772			3,582
Notes or other liabilities due affiliates	—			—			2			—			—			2
Liability to EFH Corp. under the Federal and State Income Tax Allocation Agreement	(5		)	(754		)	1,294			—			—			535
Other noncurrent liabilities and deferred credits	8			25			1,620			—			1			1,654
Total liabilities	291			42,900			37,985			3			(40,113		)	41,066
EFCH membership interests	(12,269		)	(11,983		)	(5,626		)	26			17,583			(12,269		)
Noncontrolling interests in subsidiaries	—			—			—			1			—			1
Total membership interests	(12,269		)	(11,983		)	(5,626		)	27			17,583			(12,268		)
Total liabilities and membership interests	$	(11,978	)	$	30,917		$	32,359		$	30		$	(22,530	)	$	28,798

Business_And_Significant_Accou1

Business And Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Basis of Presentation, Including Application of Bankruptcy Accounting	'
	Basis of Presentation, Including Application of Bankruptcy Accounting
	The condensed consolidated financial statements have been prepared as if EFCH is a going concern and reflect the application of ASC 852-10, Reorganizations. During the pendency of the Bankruptcy Filing, the Debtors will operate their businesses as "debtors-in-possession" under the jurisdiction of the Bankruptcy Court and in accordance with the applicable provisions of the Bankruptcy Code. ASC 852-10 applies to entities that have filed a petition for bankruptcy under Chapter 11 of the Bankruptcy Code. The guidance requires that transactions and events directly associated with the reorganization be distinguished from the ongoing operations of the business. In addition, the guidance provides for changes in the accounting and presentation of liabilities, as well as expenses and income directly associated with the Chapter 11 Cases. See Notes 6 and 7 for discussion of these accounting and reporting changes.
	Adjustments (consisting of normal recurring accruals) necessary for a fair presentation of the results of operations and financial position have been included therein. All intercompany items and transactions have been eliminated in consolidation. Certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with US GAAP have been omitted pursuant to the rules and regulations of the SEC. Because the condensed consolidated interim financial statements do not include all of the information and footnotes required by US GAAP, they should be read in conjunction with the audited financial statements and related notes included in our 2013 Form 10-K. The results of operations for an interim period may not give a true indication of results for a full year. All dollar amounts in the financial statements and tables in the notes are stated in millions of US dollars unless otherwise indicated.
Use of Estimates	'
	Use of Estimates
	Preparation of financial statements requires estimates and assumptions about future events that affect the reporting of assets and liabilities at the balance sheet dates and the reported amounts of revenue and expense, including fair value measurements and estimates of expected allowed claims. In the event estimates and/or assumptions prove to be different from actual amounts, adjustments are made in subsequent periods to reflect more current information.

Goodwill_And_Identifiable_Inta1

Goodwill And Identifiable Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of Goodwill	'
	The following table provides information regarding our goodwill balance, all of which arose in connection with accounting for the Merger. There were no changes to the goodwill balance for the three and nine months ended September 30, 2014 and 2013. None of the goodwill is being deducted for tax purposes.
	Goodwill before impairment charges	$	18,322
	Accumulated noncash impairment charges	(14,370		)
	Balance at September 30, 2014 and December 31, 2013	$	3,952
Schedule of identifiable intangible assets reported in the balance sheet	'
	Identifiable intangible assets, including amounts that arose in connection with accounting for the Merger, are comprised of the following:
			30-Sep-14												31-Dec-13
	Identifiable Intangible Asset		Gross Carrying Amount				Accumulated Amortization				Net				Gross Carrying Amount				Accumulated Amortization		Net
	Retail customer relationship		$	463			$	419			$	44			$	463			$	402	$	61
	Favorable purchase and sales contracts		352				157				195				352				139		213
	Software and other computer-related assets		354				188				166				348				147		201
	Environmental allowances and credits		205				32				173				209				20		189
	Mining development costs		167				91				76				156				69		87
	Total identifiable intangible assets subject to amortization		$	1,541			$	887			654				$	1,528			$	777	751
	Retail trade name (not subject to amortization)										955										955
	Mineral interests (not currently subject to amortization)										7										11
	Total identifiable intangible assets										$	1,616									$	1,717
Schedule of amortization expense related to intangible assets (including income statement line item)	'
	Amortization expense related to identifiable intangible assets (including income statement line item) consisted of:
	Identifiable Intangible Asset		Income Statement Line		Three Months Ended September 30,								Nine Months Ended September 30,
					2014				2013				2014				2013
	Retail customer relationship		Depreciation and amortization		$	6			$	6			$	17			$	18
	Favorable purchase and sales contracts		Operating revenues/fuel, purchased power costs and delivery fees		6				6				18				19
	Software and other computer-related assets		Depreciation and amortization		15				14				45				33
	Environmental allowances and credits		Fuel, purchased power costs and delivery fees		5				5				13				11
	Mining development costs		Depreciation and amortization		8				8				25				23
	Total amortization expense (a)				$	40			$	39			$	118			$	104
	_______________
	(a)	Amounts recorded in depreciation and amortization totaled $29 million and $28 million for the three months ended September 30, 2014 and 2013, respectively, and $87 million and $74 million for the nine months ended September 30, 2014 and 2013, respectively.
Schedule of estimated aggregate amortization expense of intangible assets for each of the next five fiscal years	'
	The estimated aggregate amortization expense of identifiable intangible assets for each of the next five fiscal years is as follows:
	Year		Estimated Amortization Expense
	2014		$	152
	2015		$	140
	2016		$	113
	2017		$	88
	2018		$	62

DebtorInPossession_Borrowing_F1

Debtor-In-Possession Borrowing Facility (Tables)	9 Months Ended
	Sep. 30, 2014
Debtor-In-Possession Borrowing Facilities [Abstract]	'
Schedule of Line of Credit Facilities	'
	The TCEH DIP Facilities and related available capacity at September 30, 2014 are presented below. Borrowings are reported in the condensed consolidated balance sheet as borrowings under debtor-in-possession credit facilities.
			30-Sep-14
	TCEH DIP Facility		Facility		Available Cash		Available Letter of Credit Capacity
			Limit		Borrowing Capacity
	TCEH DIP Revolving Credit Facility (a)		$	1,950	$	1,950	$	—
	TCEH DIP Term Loan Facility (b)		1,425		—		616
	Total TCEH DIP Facility		$	3,375	$	1,950	$	616
	___________
	(a)	Facility used for general corporate purposes. No amounts were borrowed at September 30 or November 4, 2014. Pursuant to an order of the Bankruptcy Court, the TCEH Debtors may not have more than $1.650 billion of TCEH DIP Revolving Credit Facility cash borrowings outstanding without written consent of the committee of unsecured creditors and the ad hoc group of TCEH unsecured note holders or further order of the Bankruptcy Court.
	(b)	Facility used for general corporate purposes, including but not limited to, $800 million for issuing letters of credit.

Reorganization_Items_Tables

Reorganization Items (Tables)	9 Months Ended
	Sep. 30, 2014
Reorganization Items [Abstract]	'
Reorganization Items [Table Text Block]	'						[1]
	Expenses and income directly associated with the Chapter 11 Cases are reported separately in the condensed statements of consolidated income (loss) as reorganization items as required by ASC 852-10, Reorganizations. Reorganization items also include adjustments to reflect the carrying value of liabilities subject to compromise (LSTC) at their estimated allowed claim amounts, as such adjustments are determined. The following table presents reorganization items incurred since the Petition Date as reported in the condensed statements of consolidated income (loss):
		Three Months Ended			Post-Petition Period Through
		30-Sep-14			30-Sep-14
	Liability adjustment arising from termination of interest rate swaps (Note 12)	$	—		$	277
	Fees associated with completion of TCEH DIP Facility (a)	(5		)	87
	Expenses related to legal advisory and representation services	30			51
	Expenses related to other professional consulting and advisory services	20			52
	Other	—			1
	Total reorganization items	$	45		$	468
[1]	Amounts for the three months ended September 30, 2014 represent a refund of fees due to the termination of the RCT Delayed Draw Letter of Credit commitment under the TCEH DIP Facility as discussed in Note 5.

Borrowing_Facilities_and_Debt_

Borrowing Facilities and Debt (Tables)	9 Months Ended
	Sep. 30, 2014
Debt and Capital Lease Obligations [Abstract]	'
Liabilities Subject To Compromise	'
	The amounts classified as liabilities subject to compromise (LSTC) reflect the company's estimate of pre-petition liabilities to be addressed in the Chapter 11 Cases and may be subject to future adjustment as the Chapter 11 Cases proceed. Debt amounts include related unamortized deferred financing costs, discounts or premiums. Amounts classified to LSTC do not include pre-petition liabilities that are fully secured by letters of credit or cash deposits. The following table presents LSTC as reported in the condensed consolidated balance sheets at September 30, 2014:
		September 30,
		2014
	Notes, loans and other debt per the following table	$	31,194
	Accrued interest on notes, loans and other debt	668
	Net liability under terminated TCEH interest rate swap and natural gas hedging agreements (Note 12)	1,235
	Trade accounts payable and accrued liabilities	168
	Liability under the Federal and State Income Tax Allocation Agreement (Note 13)	535
	Advances and other payables to affiliates	130
	Total liabilities subject to compromise	$	33,930
Schedule of Long-term Debt Instruments	'
		September 30,			31-Dec-13
		2014
	TCEH
	Senior Secured Facilities:
	TCEH Floating Rate Term Loan Facilities due October 10, 2014	$	3,809		$	3,809
	TCEH Floating Rate Letter of Credit Facility due October 10, 2014	42			42
	TCEH Floating Rate Revolving Credit Facility due October 10, 2016	2,054			2,054
	TCEH Floating Rate Term Loan Facilities due October 10, 2017 (a)	15,710			15,710
	TCEH Floating Rate Letter of Credit Facility due October 10, 2017	1,020			1,020
	11.5% Fixed Senior Secured Notes due October 1, 2020	1,750			1,750
	15% Fixed Senior Secured Second Lien Notes due April 1, 2021	336			336
	15% Fixed Senior Secured Second Lien Notes due April 1, 2021, Series B	1,235			1,235
	10.25% Fixed Senior Notes due November 1, 2015 (a)	2,046			2,046
	10.25% Fixed Senior Notes due November 1, 2015, Series B (a)	1,442			1,442
	10.50% /11.25% Senior Toggle Notes due November 1, 2016	1,749			1,749
	Pollution Control Revenue Bonds:
	Brazos River Authority:
	5.40% Fixed Series 1994A due May 1, 2029	39			39
	7.70% Fixed Series 1999A due April 1, 2033	111			111
	7.70% Fixed Series 1999C due March 1, 2032	50			50
	8.25% Fixed Series 2001A due October 1, 2030	71			71
	8.25% Fixed Series 2001D-1 due May 1, 2033	171			171
	Floating Rate Series 2001D-2 due May 1, 2033 (b)	—			97
	Floating Rate Taxable Series 2001I due December 1, 2036 (b)	—			62
	Floating Rate Series 2002A due May 1, 2037 (b)	—			45
	6.30% Fixed Series 2003B due July 1, 2032	39			39
	6.75% Fixed Series 2003C due October 1, 2038	52			52
	5.40% Fixed Series 2003D due October 1, 2029	31			31
	5.00% Fixed Series 2006 due March 1, 2041	100			100
	Sabine River Authority of Texas:
	6.45% Fixed Series 2000A due June 1, 2021	51			51
	5.20% Fixed Series 2001C due May 1, 2028	70			70
	5.80% Fixed Series 2003A due July 1, 2022	12			12
	6.15% Fixed Series 2003B due August 1, 2022	45			45
	Trinity River Authority of Texas:
	6.25% Fixed Series 2000A due May 1, 2028	14			14
	Unamortized fair value discount related to pollution control revenue bonds (c)	(103		)	(105		)
	Other:
	7.48% Fixed Secured Facility Bonds with amortizing payments through January 2017 (d)	—			36
	7.46% Fixed Secured Facility Bonds with amortizing payments through January 2015 (d)	—			4
	Capitalized lease obligations (d)	—			52
	Other	3			3
	Unamortized discount	(91		)	(103		)
	Total TCEH	31,858			32,140
		September 30,			31-Dec-13
		2014
	EFCH (parent entity)
	9.58% Fixed Notes due in annual installments through December 4, 2019 (d)	$	—		$	29
	8.254% Fixed Notes due in quarterly installments through December 31, 2021 (d)	—			34
	Floating Rate Junior Subordinated Debentures, Series D due January 30, 2037	1			1
	8.175% Fixed Junior Subordinated Debentures, Series E due January 30, 2037	8			8
	Unamortized fair value discount (c)	(1		)	(6		)
	Subtotal	8			66
	EFH Corp. pre-petition debt pushed down (e)
	10.875% Fixed Senior Notes due November 1, 2017	16			16
	11.25%/12.00% Senior Toggle Notes due November 1, 2017	14			14
	Subtotal — EFH Corp. debt pushed down	30			30
	Total EFCH (parent entity)	38			96
	Deferred debt issuance and extension costs (f)	(702		)	—
	Total EFCH consolidated notes, loans and other debt	$	31,194		$	32,236
	____________
	(a)	As discussed below and in Note 13, principal amounts of notes/term loans totaling $382 million at both September 30, 2014 and December 31, 2013 were held by EFH Corp. and EFIH.
	(b)	These bonds were tendered and settled through letter of credit draws.
(c)	Amount represents unamortized fair value adjustments recorded under purchase accounting.
(d)	Amounts classified as debt in the condensed consolidated balance sheet at September 30, 2014. See (a) and (b) notes to condensed consolidated balance sheets.
(e)	Represents 50% of the amount of these EFH Corp. securities guaranteed by, and pushed down to (pushed-down debt), EFCH (parent entity) per the discussion below under "Guarantees and Push Down of EFH Corp. Pre-Petition Debt."
(f)	Deferred debt issuance and extension costs were reported in other noncurrent assets at December 31, 2013.

Interest_Expense_and_Related_C1

Interest Expense and Related Charges (Tables)	9 Months Ended
	Sep. 30, 2014
Interest Expense and Related Charges [Abstract]	'
Schedule of interest expense and related charges	'
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Interest paid/accrued on debtor-in-possession financing	$	16		$	—		$	22		$	—
	Adequate protection amounts paid/accrued (a)	308			—			519			—
	Interest paid/accrued on pre-petition debt (including net amounts paid/accrued under interest rate swaps) (b)	3			688			883			2,042
	Interest related to pushed down debt	—			1			1			5
	Noncash realized net loss on termination of interest rate swaps (offset in unrealized net gain) (c)	—			—			1,225			—
	Unrealized mark-to-market net gain on interest rate swaps	—			(413		)	(1,290		)	(899		)
	Amortization of interest rate swap losses at dedesignation of hedge accounting	—			2			(1		)	6
	Amortization of fair value debt discounts resulting from purchase accounting	—			3			3			8
	Amortization of debt issuance, amendment and extension costs and discounts	1			64			86			195
	Capitalized interest	(3		)	(5		)	(14		)	(19		)
	Total interest expense and related charges	$	325		$	340		$	1,434		$	1,338
	____________
	(a)	Post-petition period only.
	(b)	Includes amounts related to interest rate swaps totaling $160 million for the three months ended September 30, 2013, and $193 million and $466 million for the nine months ended September 30, 2014 and 2013, respectively. Of the $193 million for the nine months ended September 30, 2014, $127 million represents matured positions that have not been settled in cash and is included in the liability arising from the termination of TCEH interest rate swaps discussed in Note 12.
	(c)	See Note 12.

Membership_InterestsEquity_Tab

Membership Interests/Equity (Tables)	9 Months Ended
	Sep. 30, 2014
Stockholders' Equity Note [Abstract]	'
Schedule of Stockholders Equity	'
	____________
	(a)	Represents the interest and income tax effects of debt pushed down from EFH Corp. (Note 7).

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Schedule of assets and liabilities measured at fair value on a recurring basis	'
	Assets and liabilities measured at fair value on a recurring basis consisted of the following:
	30-Sep-14
		Level 1			Level 2				Level 3 (a)				Reclassification (b)				Total
	Assets:
	Commodity contracts	$	80		$	23			$	37			$	1			$	141
	Nuclear decommissioning trust – equity securities (c)	358			207				—				—				565
	Nuclear decommissioning trust – debt securities (c)	—			294				—				—				294
	Total assets	$	438		$	524			$	37			$	1			$	1,000
	Liabilities:
	Commodity contracts	$	97		$	10			$	8			$	1			$	116
	Total liabilities	$	97		$	10			$	8			$	1			$	116
	31-Dec-13
		Level 1			Level 2				Level 3 (a)				Reclassification (b)				Total
	Assets:
	Commodity contracts	$	161		$	570			$	57			$	—			$	788
	Nuclear decommissioning trust – equity securities (c)	330			191				—				—				521
	Nuclear decommissioning trust – debt securities (c)	—			270				—				—				270
	Total assets	$	491		$	1,031			$	57			$	—			$	1,579
	Liabilities:
	Commodity contracts	$	231		$	14			$	18			$	—			$	263
	Interest rate swaps	—			—				1,012				—				1,012
	Total liabilities	$	231		$	14			$	1,030			$	—			$	1,275
	_______________
	(a)	See table below for description of Level 3 assets and liabilities.
	(b)	Fair values are determined on a contract basis, but certain contracts result in a current asset and a noncurrent liability, or vice versa, as presented in the condensed consolidated balance sheets.
	(c)	The nuclear decommissioning trust investment is included in the investments line in the condensed consolidated balance sheets. See Note 14.
Schedule of fair value of the Level 3 assets and liabilities by major contract type (all related to commodity contracts) and the significant unobservable inputs used in the valuations	'
	The following tables present the fair value of the Level 3 assets and liabilities by major contract type and the significant unobservable inputs used in the valuations at September 30, 2014 and December 31, 2013:
	30-Sep-14
			Fair Value
	Contract Type (a)		Assets			Liabilities				Total				Valuation Technique		Significant Unobservable Input		Range (b)
	Electricity purchases and sales		$	1		$	(1	)		$	—			Valuation Model		Illiquid pricing locations (c)		$30 to $50/MWh
																Hourly price curve shape (d)		$20 to $70/MWh
	Electricity spread options		5			—				5				Option Pricing Model		Gas to power correlation (e)		40% to 90%
																Power volatility (f)		10% to 40%
	Electricity congestion revenue rights		26			(3		)		23				Market Approach (g)		Illiquid price differences between settlement points (h)		$0.00 to $13.00
	Coal purchases		1			(4		)		(3		)		Market Approach (g)		Illiquid price variances between mines (i)		$0.00 to $1.00
																Illiquid pricing variances between heat content (l)		$0.30 to $0.40
	Other (n)		4			—				4
	Total		$	37		$	(8	)		$	29
	31-Dec-13
			Fair Value
	Contract Type (a)		Assets			Liabilities				Total				Valuation Technique		Significant Unobservable Input		Range (b)
	Electricity purchases and sales		$	2		$	(2	)		$	—			Valuation Model		Illiquid pricing locations (c)		$25 to $45/MWh
																Hourly price curve shape (d)		$20 to $70/MWh
	Electricity spread options		15			(2		)		13				Option Pricing Model		Gas to power correlation (e)		45% to 95%
																Power volatility (f)		10% to 30%
	Electricity congestion revenue rights		35			(2		)		33				Market Approach (g)		Illiquid price differences between settlement points (h)		$0.00 to $25.00
	Coal purchases		—			(11		)		(11		)		Market Approach (g)		Illiquid price variances between mines (i)		$0.00 to $1.00
																Probability of default (j)		0% to 40%
																Recovery rate (k)		0% to 40%
	Interest rate swaps		—			(1,012		)		(1,012		)		Valuation Model		Nonperformance risk adjustment (m)		25% to 35%
	Other (n)		5			(1		)		4
	Total		$	57		$	(1,030	)		$	(973	)
	____________
	(a)	Electricity purchase and sales contracts include hedging positions in the ERCOT West, North and Houston regions, as well as power contracts, the valuations of which include unobservable inputs related to the hourly shaping of the price curve. Electricity spread option contracts consist of physical electricity call options. Electricity congestion revenue rights contracts consist of forward purchase contracts (swaps and options) used to hedge electricity price differences between settlement points within ERCOT. Coal purchase contracts relate to western (Powder River Basin) coal. TCEH used interest rate swaps to hedge exposure to its variable rate debt (see Note 12).
	(b)	The range of the inputs may be influenced by factors such as time of day, delivery period, season and location.
	(c)	Based on the historical range of forward average monthly ERCOT Hub and load zone prices.
	(d)	Based on the historical range of forward average hourly ERCOT North Hub prices.
	(e)	Estimate of the historical range based on forward natural gas and on-peak power prices for the ERCOT hubs most relevant to our spread options.
	(f)	Based on historical forward price changes.
	(g)	While we use the market approach, there is either insufficient market data to consider the valuation liquid or the significance of credit reserves or non-performance risk adjustments results in a Level 3 designation.
	(h)	Based on the historical price differences between settlement points within the ERCOT Hubs and load zones.
	(i)	Based on the historical range of price variances between mine locations.
	(j)	Estimate of the range of probabilities of default based on past experience and the length of the contract as well as our and counterparties' credit ratings.
	(k)	Estimate of the default recovery rate based on historical corporate rates.
	(l)	Based on historical ranges of forward average prices between different heat contents (potential energy in coal for a given mass).
	(m)
Schedule of changes in fair value of the Level 3 assets and liabilities (all related to commodity contracts)	'
	The following table presents the changes in fair value of the Level 3 assets and liabilities for the three and nine months ended September 30, 2014 and 2013.
		Three Months Ended September 30,							Nine Months Ended September 30,
		2014			2013				2014				2013
	Net asset (liability) balance at beginning of period	$	45		$	88			$	(973	)		$	29
	Total unrealized valuation losses	(3		)	(24		)		(97		)		(41		)
	Purchases, issuances and settlements (a):
	Purchases	10			6				39				66
	Issuances	(1		)	—				(3		)		(6		)
	Settlements/terminations	(21		)	(62		)		1,063				(45		)
	Transfers into Level 3 (b)	—			(1,179		)		—				(1,178		)
	Transfers out of Level 3 (b)	(1		)	—				—				4
	Net change (c)	(16		)	(1,259		)		1,002				(1,200		)
	Net asset (liability) balance at end of period	$	29		$	(1,171	)		$	29			$	(1,171	)
	Unrealized valuation gains relating to instruments held at end of period	$	—		$	254			$	2			$	280
	____________
	(a)	Settlement amounts in 2014 reflect termination of TCEH interest rate swaps and include the nonperformance risk adjustment as discussed in Note 12. Settlements for all periods presented reflect reversals of unrealized mark-to-market valuations previously recognized in net income. Purchases and issuances reflect option premiums paid or received.
	(b)	Includes transfers due to changes in the observability of significant inputs. Transfers in and out occur at the end of each quarter, which is when the assessments are performed. All Level 3 transfers in the periods presented are in and out of Level 2. Transfers into Level 3 during 2013 reflect a nonperformance risk adjustment in the valuation of the TCEH interest rate swaps, which were secured by a first-lien interest in the same assets of TCEH (on a pari passu basis) with the TCEH Senior Secured Facilities and the TCEH Senior Secured Notes (see Note 7). The amount of the nonperformance risk adjustment was calculated after consideration of derivative assets related to contracts with the same counterparties that are also secured by a first-lien interest in the assets of TCEH, and a master netting agreement in place that provides for netting and setoff of amounts related to these contracts.
	(c)	Substantially all changes in values of commodity contracts are reported in the condensed statements of consolidated income (loss) in net gain (loss) from commodity hedging and trading activities. Changes in values of interest rate swaps transferred into Level 3 in third quarter 2013 are reported in the condensed statements of consolidated income (loss) in interest expense and related charges (see Note 12). Activity excludes changes in fair value in the month the positions settled as well as amounts related to positions entered into and settled in the same month.

Commodity_And_Other_Derivative1

Commodity And Other Derivative Contractual Assets And Liabilities (Tables)	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Schedule of Commodity and Other Derivative Contractual Assets and Liabilities as Reported in the Balance Sheets	'
	Substantially all derivative contractual assets and liabilities arise from mark-to-market accounting consistent with accounting standards related to derivative instruments and hedging activities. The following tables provide detail of commodity and other derivative contractual assets and liabilities (with the column totals representing the net positions of the contracts) as reported in the condensed consolidated balance sheets at September 30, 2014 and December 31, 2013:
	30-Sep-14
		Derivative assets								Derivative liabilities
		Commodity contracts				Interest rate swaps				Commodity contracts				Interest rate swaps				Total
	Current assets	$	131			$	—			$	—			$	—			$	131
	Noncurrent assets	9				—				1				—				10
	Current liabilities	—				—				(112		)		—				(112		)
	Noncurrent liabilities	—				—				(4		)		—				(4		)
	Net assets (liabilities)	$	140			$	—			$	(115	)		$	—			$	25
	31-Dec-13
		Derivative assets								Derivative liabilities
		Commodity contracts				Interest rate swaps				Commodity contracts				Interest rate swaps				Total
	Current assets	$	784			$	—			$	—			$	—			$	784
	Noncurrent assets	4				—				—				—				4
	Current liabilities	—				—				(263		)		(1,012		)		(1,275		)
	Net assets (liabilities)	$	788			$	—			$	(263	)		$	(1,012	)		$	(487	)
Schedule of Pre-tax Effect on Net Income of Derivatives Not Under Hedge Accounting, Including Realized and Unrealized Effects	'
	The following table presents the pretax effect of derivatives on net income (gains (losses)), including realized and unrealized effects:
			Three Months Ended September 30,								Nine Months Ended September 30,
	Derivative (income statement presentation)		2014				2013				2014				2013
	Commodity contracts (Net gain (loss) from commodity hedging and trading activities) (a)		$	54			$	98			$	(114	)		$	54
	Interest rate swaps (Interest expense and related charges) (b)		—				253				(128		)		433
	Interest rate swaps (Reorganization items) (Note 6)		—				—				(277		)		—
	Net gain (loss)		$	54			$	351			$	(519	)		$	487
	_______________
	(a)	Amount represents changes in fair value of positions in the derivative portfolio during the period, as realized amounts related to positions settled are assumed to equal reversals of previously recorded unrealized amounts.
	(b)	Includes unrealized mark-to-market net gain (loss) as well as the net realized effect on interest paid/accrued, both reported in "Interest Expense and Related Charges" (see Note 8).
Offsetting Assets and Liabilities	'
	The following tables reconcile our derivative assets and liabilities as presented in the condensed consolidated balance sheets to net amounts after taking into consideration netting arrangements with counterparties and financial collateral:
	30-Sep-14
			Amounts Presented in Balance Sheet				Offsetting Instruments				Financial Collateral (Received) Pledged (b)				Net Amounts
	Derivative assets:
	Commodity contracts		$	141			$	(91	)		$	—			$	50
	Derivative liabilities:
	Commodity contracts		(116		)		91				17				(8		)
	Net amounts		$	25			$	—			$	17			$	42
	31-Dec-13
			Amounts Presented in Balance Sheet				Offsetting Instruments (a)				Financial Collateral (Received) Pledged (b)				Net Amounts
	Derivative assets:
	Commodity contracts		$	788			$	(389	)		$	(299	)		$	100
	Interest rate swaps		—				—				—				—
	Total derivative assets		788				(389		)		(299		)		100
	Derivative liabilities:
	Commodity contracts		(263		)		168				70				(25		)
	Interest rate swaps		(1,012		)		221				—				(791		)
	Total derivative liabilities		(1,275		)		389				70				(816		)
	Net amounts		$	(487	)		$	—			$	(229	)		$	(716	)
	____________
	(a)	Offsetting instruments at December 31, 2013 with respect to commodity contracts include amounts related to interest rate swaps and vice versa. All amounts presented exclude trade accounts receivable and payable related to settled financial instruments.
	(b)	Financial collateral consists entirely of cash margin deposits.
Schedule of Gross Notional Amounts of Derivative Volumes	'
	The following table presents the gross notional amounts of derivative volumes at September 30, 2014 and December 31, 2013:
			30-Sep-14				31-Dec-13
	Derivative type		Notional Volume								Unit of Measure
	Interest rate swaps:
	Floating/fixed (a)		$	—			$	30,790			Million US dollars
	Basis		$	—			$	1,050			Million US dollars
	Natural gas (b)		1,178				2,150				Million MMBtu
	Electricity		18,580				16,482				GWh
	Congestion Revenue Rights (c)		74,257				77,799				GWh
	Coal		11				9				Million US tons
	Fuel oil		14				26				Million gallons
	Uranium		300				450				Thousand pounds
	_______________
	(a)	Amounts at December 31, 2013 include notional amount of interest rate swaps that had maturity dates through October 2014 as well as notional amount of swaps effective from October 2014 that had maturity dates through October 2017.
	(b)	Represents gross notional forward sales, purchases and options transactions, locational basis swaps and other natural gas transactions.
	(c)	Represents gross forward purchases associated with instruments used to hedge electricity price differences between settlement points within ERCOT.

RelatedParty_Transactions_Tabl

Related-Party Transactions (Tables)	9 Months Ended
	Sep. 30, 2014
Related Party Transactions [Abstract]	'
Schedule of related party transactions, debt held by related party	'
	As a result of debt repurchase and exchange transactions in 2009 through 2011, EFH Corp. and EFIH held TCEH debt securities at both September 30, 2014 and December 31, 2013 as shown below (principal amounts). At September 30, 2014, the $382 million in notes payable as of the Petition Date is classified as LSTC.
		Principal Amount
	TCEH Senior Notes:
	Held by EFH Corp.	$	284
	Held by EFIH	79
	TCEH Term Loan Facilities:
	Held by EFH Corp.	19
	Total	$	382

Supplementary_Financial_Inform1

Supplementary Financial Information (Tables)	9 Months Ended
	Sep. 30, 2014
Supplementary Financial Information [Abstract]	'
Schedule of Other Nonoperating Income (Expense) [Table Text Block]	'
	Other Income and Deductions
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Other income:
	Insurance/litigation settlements	$	—		$	—		$	—		$	2
	Gain on sale of land	2			—			2			—
	All other	3			1			9			5
	Total other income	$	5		$	1		$	11		$	7
	Other deductions:
	Write-off of deferred costs related to mining projects	$	9		$	—		$	30		$	—
	Other asset impairments	—			3			—			3
	All other	5			5			8			9
	Total other deductions	$	14		$	8		$	38		$	12
Schedule of Restricted Cash and Cash Equivalents [Table Text Block]	'
	Restricted Cash
		30-Sep-14						31-Dec-13
		Current			Noncurrent Assets			Current			Noncurrent Assets
		Assets						Assets
	Amounts related to TCEH's DIP Facility (Note 5)	$	—		$	184		$	—		$	—
	Amounts related to TCEH's pre-petition Letter of Credit Facility (Note 7) (a)	—			567			945			—
	Total restricted cash	$	—		$	751		$	945		$	—
	____________
	(a)	At December 31, 2013, in consideration of the Bankruptcy Filing, all amounts were classified as current. See Note 7 for discussion of letter of credit draws in 2014.
Schedule of interest expense and related charges	'
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Interest paid/accrued on debtor-in-possession financing	$	16		$	—		$	22		$	—
	Adequate protection amounts paid/accrued (a)	308			—			519			—
	Interest paid/accrued on pre-petition debt (including net amounts paid/accrued under interest rate swaps) (b)	3			688			883			2,042
	Interest related to pushed down debt	—			1			1			5
	Noncash realized net loss on termination of interest rate swaps (offset in unrealized net gain) (c)	—			—			1,225			—
	Unrealized mark-to-market net gain on interest rate swaps	—			(413		)	(1,290		)	(899		)
	Amortization of interest rate swap losses at dedesignation of hedge accounting	—			2			(1		)	6
	Amortization of fair value debt discounts resulting from purchase accounting	—			3			3			8
	Amortization of debt issuance, amendment and extension costs and discounts	1			64			86			195
	Capitalized interest	(3		)	(5		)	(14		)	(19		)
	Total interest expense and related charges	$	325		$	340		$	1,434		$	1,338
	____________
	(a)	Post-petition period only.
	(b)	Includes amounts related to interest rate swaps totaling $160 million for the three months ended September 30, 2013, and $193 million and $466 million for the nine months ended September 30, 2014 and 2013, respectively. Of the $193 million for the nine months ended September 30, 2014, $127 million represents matured positions that have not been settled in cash and is included in the liability arising from the termination of TCEH interest rate swaps discussed in Note 12.
	(c)	See Note 12.
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	'
	Trade Accounts Receivable
		30-Sep-14			31-Dec-13
	Wholesale and retail trade accounts receivable	$	940		$	724
	Allowance for uncollectible accounts	(17		)	(14		)
	Trade accounts receivable — net	$	923		$	710
	Allowance for Uncollectible Accounts Receivable
		Nine Months Ended September 30,
		2014			2013
	Allowance for uncollectible accounts receivable at beginning of period	$	14		$	9
	Increase for bad debt expense	30			23
	Decrease for account write-offs	(27		)	(15		)
	Allowance for uncollectible accounts receivable at end of period	$	17		$	17
Schedule of inventories by major category	'
	Inventories by Major Category
		30-Sep-14			31-Dec-13
	Materials and supplies	$	214		$	216
	Fuel stock	125			154
	Natural gas in storage	31			29
	Total inventories	$	370		$	399
Summary of other investments	'
	Investments
		30-Sep-14			31-Dec-13
	Nuclear plant decommissioning trust	$	859		$	791
	Assets related to employee benefit plans, including employee savings programs, net of distributions	1			1
	Land	37			37
	Miscellaneous other	7			9
	Total investments	$	904		$	838
Summary of investments in the fund	'
	A summary of investments in the fund follows:
		30-Sep-14
		Cost (a)			Unrealized gain			Unrealized loss			Fair market
											value
	Debt securities (b)	$	282		$	12		$	—		$	294
	Equity securities (c)	264			305			(4		)	565
	Total	$	546		$	317		$	(4	)	$	859
		31-Dec-13
		Cost (a)			Unrealized gain			Unrealized loss			Fair market
											value
	Debt securities (b)	$	266		$	8		$	(4	)	$	270
	Equity securities (c)	255			271			(5		)	521
	Total	$	521		$	279		$	(9	)	$	791
	____________
	(a)	Includes realized gains and losses on securities sold.
	(b)	The investment objective for debt securities is to invest in a diversified tax efficient portfolio with an overall portfolio rating of AA or above as graded by S&P or Aa2 by Moody's Investors Services, Inc. The debt securities are heavily weighted with municipal bonds. The debt securities had an average coupon rate of 4.09% and 3.96% at September 30, 2014 and December 31, 2013, respectively, and an average maturity of 6 years at both September 30, 2014 and December 31, 2013.
	(c)	The investment objective for equity securities is to invest tax efficiently and to match the performance of the S&P 500 Index.
Summary of proceeds from sales of available-for-sale securities and the related realized gains and losses from such sales	'
	The following table summarizes proceeds from sales of available-for-sale securities and the related realized gains and losses from such sales.
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Realized gains	$	1		$	1		$	2		$	2
	Realized losses	$	—		$	(3	)	$	(1	)	$	(3	)
	Proceeds from sales of securities	$	165		$	23		$	250		$	128
	Investments in securities	$	(170	)	$	(28	)	$	(263	)	$	(140	)
Schedule of asset retirement and mining reclamation obligations	'
	The following table summarizes the changes to these obligations, reported in other current liabilities and other noncurrent liabilities and deferred credits in the condensed consolidated balance sheets, for the nine months ended September 30, 2014:
		Nuclear Plant Decommissioning			Mining Land Reclamation			Other			Total
	Liability at December 31, 2013	$	390		$	98		$	36		$	524
	Additions:
	Accretion	17			17			2			36
	Reductions:
	Payments	—			(60		)	(2		)	(62		)
	Adjustment to estimate of reclamation costs	—			(2		)	—			(2		)
	Liability at September 30, 2014	407			53			36			496
	Less amounts due currently	—			(33		)	—			(33		)
	Noncurrent liability at September 30, 2014	$	407		$	20		$	36		$	463
Schedule of other noncurrent liabilities and deferred credits	'
	The balance of other noncurrent liabilities and deferred credits consists of the following:
		30-Sep-14			31-Dec-13
	Uncertain tax positions, including accrued interest	$	175		$	204
	Asset retirement and mining reclamation obligations	463			440
	Unfavorable purchase and sales contracts	572			589
	Nuclear decommissioning cost over-recovery (Note 13)	451			400
	Other, including retirement and other employee benefits	19			21
	Total other noncurrent liabilities and deferred credits	$	1,680		$	1,654
Schedule of estimated amortization of unfavorable purchase and sales contracts for each of the next five fiscal years	'
	The estimated amortization of unfavorable purchase and sales contracts for each of the next five fiscal years is as follows:
	Year		Amount
	2014		$	23
	2015		$	24
	2016		$	24
	2017		$	24
	2018		$	24
Fair Value, by Balance Sheet Grouping [Table Text Block]	'
			30-Sep-14						31-Dec-13
	Debt:		Carrying Amount			Fair			Carrying Amount			Fair
						Value						Value
	Borrowings under debtor-in-possession credit facility (Note 5)		$	1,425		$	1,429		$	—		$	—
	Pre-petition notes, loans and other debt reported as liabilities subject to compromise (Note 7)		$	31,896		$	19,345		$	—		$	—
	Long-term debt, excluding capitalized lease obligations		$	81		$	91		$	—		$	—
	Pre-petition notes, loans and other debt (excluding capitalized lease obligations) (Note 7)		$	—		$	—		$	32,184		$	17,985
Schedule of supplemental cash flow information	'
	Supplemental Cash Flow Information
		Nine Months Ended September 30,
		2014			2013
	Cash payments related to:
	Interest paid (a)	$	938		$	1,901
	Capitalized interest	(14		)	(19		)
	Interest paid (net of capitalized interest) (a)	$	924		$	1,882
	Reorganization items (b)	$	41		$	—
	Income taxes	$	33		$	134
	Noncash investing and financing activities:
	Effect of Parent's payment of interest on pushed down debt	$	—		$	21
	Construction expenditures (c)	$	73		$	62
	Contribution related to EFH Corp. stock-based compensation	$	2		$	1
	Debt assumed related to acquisition of combustion turbine trust interest	$	—		$	(45	)
	Reduction of debt pushed down from EFH Corp. (d)	$	—		$	(420	)
	Debt extension transactions (e)	$	—		$	(340	)
	____________
	(a)	Net of amounts received under interest rate swap agreements. For the nine months ended September 30, 2014, this amount also includes amounts paid for adequate protection.
	(b)	Represents cash payments for legal and other consulting services.
	(c)	Represents end-of-period accruals.
	(d)	For the nine months ended September 30, 2013, represents $838 million principal amount of EFH Corp. debt exchanged (at 50%) for EFIH debt.
	(e)	Principal amounts of incremental loans under the TCEH Term Loan Facilities issued in consideration for the extension of the maturity date of such facilities.

Supplemental_Guarantor_Condens1

Supplemental Guarantor Condensed Financial Information (Tables)	9 Months Ended
	Sep. 30, 2014
Supplemental Guarantor Condensed Financial Information [Abstract]	'
Condensed Consolidating Statements of Income (Loss)	'
	ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
	A DEBTOR-IN-POSSESSION
	Condensed Consolidating Statements of Income (Loss)
	Nine Months Ended September 30, 2014
	(millions of dollars)
		Parent			Issuer			Other			Non-			Eliminations			Consolidated
		Guarantor						Guarantors			guarantors
	Operating revenues	$	—		$	—		$	4,731		$	—		$	—		$	4,731
	Fuel, purchased power costs and delivery fees	—			—			(2,256		)	—			—			(2,256		)
	Net loss from commodity hedging and trading activities	—			(90		)	(28		)	—			—			(118		)
	Operating costs	—			—			(660		)	—			—			(660		)
	Depreciation and amortization	—			—			(983		)	—			—			(983		)
	Selling, general and administrative expenses	—			(29		)	(442		)	(2		)	—			(473		)
	Franchise and revenue-based taxes	—			—			(54		)	—			—			(54		)
	Other income	—			—			9			2			—			11
	Other deductions	—			—			(38		)	—			—			(38		)
	Interest income	1			80			270			—			(351		)	—
	Interest expense and related charges	(9		)	(1,705		)	(803		)	—			1,083			(1,434		)
	Reorganization items	—			(468		)	—			—			—			(468		)
	Loss before income taxes	(8		)	(2,212		)	(254		)	—			732			(1,742		)
	Income tax benefit	2			729			84			—			(241		)	574
	Equity earnings (losses) of subsidiaries	(1,162		)	321			—			—			841			—
	Net loss	(1,168		)	(1,162		)	(170		)	—			1,332			(1,168		)
	Other comprehensive income	1			1			—			—			(1		)	1
	Comprehensive loss	$	(1,167	)	$	(1,161	)	$	(170	)	$	—		$	1,331		$	(1,167	)
	ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
	A DEBTOR-IN-POSSESSION
	Condensed Consolidating Statements of Income (Loss)
	Nine Months Ended September 30, 2013
	(millions of dollars)
		Parent			Issuer			Other			Non-			Eliminations			Consolidated
		Guarantor						Guarantors			guarantors
	Operating revenues	$	—		$	—		$	4,572		$	59		$	(59	)	$	4,572
	Fuel, purchased power costs and delivery fees	—			—			(2,175		)	—			—			(2,175		)
	Net gain (loss) from commodity hedging and trading activities	—			(3		)	32			—			—			29
	Operating costs	—			—			(690		)	—			5			(685		)
	Depreciation and amortization	—			—			(1,011		)	(1		)	—			(1,012		)
	Selling, general and administrative expenses	—			(49		)	(481		)	(25		)	53			(502		)
	Franchise and revenue-based taxes	—			—			(51		)	—			—			(51		)
	Other income	—			—			7			—			—			7
	Other deductions	—			—			(12		)	—			—			(12		)
	Interest income	1			182			591			—			(769		)	5
	Interest expense and related charges	(15		)	(1,920		)	(1,842		)	(8		)	2,447			(1,338		)
	Income (loss) before income taxes	(14		)	(1,790		)	(1,060		)	25			1,677			(1,162		)
	Income tax benefit (expense)	7			630			420			(9		)	(572		)	476
	Equity earnings (losses) of subsidiaries	(679		)	481			1			—			197			—
	Net income (loss)	(686		)	(679		)	(639		)	16			1,302			(686		)
	Other comprehensive income	5			5			—			—			(5		)	5
	Comprehensive income (loss)	$	(681	)	$	(674	)	$	(639	)	$	16		$	1,297		$	(681	)
Condensed Consolidating Statements of Cash Flows	'
	ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
	A DEBTOR-IN-POSSESSION
	Condensed Consolidating Statements of Cash Flows
	Nine Months Ended September 30, 2014
	(millions of dollars)
		Parent/			Issuer			Other			Non-			Eliminations			Consolidated
		Guarantor						Guarantors			guarantors
	Cash provided by (used in) operating activities	$	(4	)	$	(1,122	)	$	1,514		$	(5	)	$	—		$	383
	Cash flows – financing activities:
	Proceeds from TCEH DIP Facility	—			1,425			—			—			—			1,425
	Fees paid for TCEH DIP Facility	—			(87		)	—			—			—			(87		)
	Notes/advances due to affiliates	8			1,121			—			—			(1,129		)	—
	Repayments/repurchases of debt	(4		)	(203		)	(17		)	—			—			(224		)
	Contributions from noncontrolling interests	—			—			—			1			—			1
	Cash provided by (used in) financing activities	4			2,256			(17		)	1			(1,129		)	1,115
	Cash flows – investing activities:
	Capital expenditures	—			—			(254		)	—			—			(254		)
	Nuclear fuel purchases	—			—			(76		)	—			—			(76		)
	Settlements of notes due from affiliates	—			—			(1,146		)	—			1,129			(17		)
	Increase in restricted cash related to TCEH DIP Facility	—			(184		)	—			—			—			(184		)
	Purchase of right to use certain computer-related assets from parent	—			—			(3		)	—			—			(3		)
	Proceeds from sales of assets	—			—			2			—			—			2
	Reduction of restricted cash related to TCEH Letter of Credit Facility				378			—						—			378
	Proceeds from sales of environmental allowances and credits	—			—			3			—			—			3
	Purchases of environmental allowances and credits	—			—			(13		)	—			—			(13		)
	Proceeds from sales of nuclear decommissioning trust fund securities	—			—			250			—			—			250
	Investments in nuclear decommissioning trust fund securities	—			—			(263		)	—			—			(263		)
	Other, net	—			—			11			—			—			11
	Cash provided by (used in) investing activities	—			194			(1,489		)	—			1,129			(166		)
	Net change in cash and cash equivalents	—			1,328			8			(4		)	—			1,332
	Cash and cash equivalents – beginning balance	—			725			16			5			—			746
	Cash and cash equivalents – ending balance	$	—		$	2,053		$	24		$	1		$	—		$	2,078
	ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
	A DEBTOR-IN-POSSESSION
	Condensed Consolidating Statements of Cash Flows
	Nine Months Ended September 30, 2013
	(millions of dollars)
		Parent/			Issuer			Other			Non-			Eliminations			Consolidated
		Guarantor						Guarantors			guarantors
	Cash provided by (used in) operating activities	$	(8	)	$	(1,764	)	$	1,736		$	(85	)	$	—		$	(121	)
	Cash flows – financing activities:
	Notes/advances due to affiliates	11			1,913			—			—			(1,920		)	4
	Repayments/repurchases of long-term debt	(3		)	(64		)	(27		)	—			—			(94		)
	Net short-term borrowings under accounts receivable securitization program	—			—			—			90			—			90
	Contributions from noncontrolling interests	—			—			—			3			—			3
	Other, net	—			—			—			(10		)	—			(10		)
	Cash provided by (used in) financing activities	8			1,849			(27		)	83			(1,920		)	(7		)
	Cash flows – investing activities:
	Capital expenditures	—			—			(349		)	(4		)	—			(353		)
	Nuclear fuel purchases	—			—			(59		)	—			—			(59		)
	Notes due from affiliates	—			—			(1,222		)	—			1,920			698
	Purchase of right to use certain computer-related assets from parent	—			—			(6		)	—			—			(6		)
	Proceeds from sales of assets	—			—			3			—			—			3
	Acquisition of combustion turbine trust interest	—			—			(40		)	—			—			(40		)
	Purchases of environmental allowances and credits	—			—			(13		)	—			—			(13		)
	Proceeds from sales of nuclear decommissioning trust fund securities	—			—			128			—			—			128
	Investments in nuclear decommissioning trust fund securities	—			—			(140		)	—			—			(140		)
	Other, net	—			—			(3		)	—			—			(3		)
	Cash provided by (used in) investing activities	—			—			(1,701		)	(4		)	1,920			215
	Net change in cash and cash equivalents	—			85			8			(6		)	—			87
	Cash and cash equivalents – beginning balance	—			1,115			15			45			—			1,175
	Cash and cash equivalents – ending balance	$	—		$	1,200		$	23		$	39		$	—		$	1,262
	ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
A DEBTOR-IN-POSSESSION
Condensed Consolidating Balance Sheets
30-Sep-14
(millions of dollars)
	Parent			Issuer			Other			Non-guarantors			Eliminations			Consolidated
	Guarantor						Guarantors
ASSETS
Current assets:
Cash and cash equivalents	$	—		$	2,053		$	24		$	1		$	—		$	2,078
Advances to parent and affiliates	3			8			851			—			(854		)	8
Trade accounts receivable – net	—			—			923			—			—			923
Income taxes receivable	4			106			—			—			(110		)	—
Accounts receivable from affiliates	—			2			—			—			(2		)	—
Inventories	—			—			370			—			—			370
Commodity and other derivative contractual assets	—			—			131			—			—			131
Accumulated deferred income taxes	—			117			24			—			(24		)	117
Margin deposits related to commodity positions	—			—			64			—			—			64
Other current assets	—			3			51			—			—			54
Total current assets	7			2,289			2,438			1			(990		)	3,745
Restricted cash	—			751			—			—			—			751
Investments	(23,025		)	14,077			920			8			8,924			904
Property, plant and equipment – net	—			—			16,940			3			—			16,943
Advances to parent and affiliates	—			9			—			—			—			9
Goodwill	—			3,952			—			—			—			3,952
Identifiable intangible assets – net	—			—			1,616			—			—			1,616
Commodity and other derivative contractual assets	—			—			10			—			—			10
Accumulated deferred income taxes	—			550			—			14			(564		)	—
Other noncurrent assets	—			—			7			—			—			7
Total assets	$	(23,018	)	$	21,628		$	21,931		$	26		$	7,370		$	27,937
LIABILITIES AND MEMBERSHIP INTERESTS
Notes/advances from affiliates	$	—		$	854		$	—		$	—		$	(854	)	$	—
Trade accounts payable	—			1			433			—			—			434
Trade accounts and other payables to affiliates	—			—			181			2			(2		)	181
Commodity and other derivative contractual liabilities	—			—			112			—			—			112
Margin deposits related to commodity positions	—			—			3			—			—			3
Accumulated deferred income taxes	24			—			—			—			(24		)	—
Accrued income taxes payable to parent	—			—			127			—			(110		)	17
Accrued taxes other than income	—			—			86			—			—			86
Accrued interest	1			109			1			—			—			111
ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
A DEBTOR-IN-POSSESSION
Condensed Consolidating Balance Sheets
30-Sep-14
(millions of dollars)
	Parent			Issuer			Other			Non-guarantors			Eliminations			Consolidated
	Guarantor						Guarantors
Other current liabilities	$	12		$	64		$	213		$	—		$	—		$	289
Total current liabilities	37			1,028			1,156			2			(990		)	1,233
Accumulated deferred income taxes	50			—			2,645			—			294			2,989
Commodity and other derivative contractual liabilities	—			—			4			—			—			4
Borrowings under debtor-in-possession credit facility	—			1,425			—			—			—			1,425
Long-term debt, less amounts due currently	43			—			51			—			—			94
Liabilities subject to compromise	146			42,181			32,510			—			(40,907		)	33,930
Other noncurrent liabilities and deferred credits	6			18			1,656			—			—			1,680
Total liabilities	282			44,652			38,022			2			(41,603		)	41,355
Total membership interests	(23,300		)	(23,024		)	(16,091		)	24			48,973			(13,418		)
Total liabilities and membership interests	$	(23,018	)	$	21,628		$	21,931		$	26		$	7,370		$	27,937
Condensed Consolidating Balance Sheet	'
	ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
	A DEBTOR-IN-POSSESSION
	Condensed Consolidating Balance Sheets
	30-Sep-14
	(millions of dollars)
		Parent			Issuer			Other			Non-guarantors			Eliminations			Consolidated
		Guarantor						Guarantors
	ASSETS
	Current assets:
	Cash and cash equivalents	$	—		$	2,053		$	24		$	1		$	—		$	2,078
	Advances to parent and affiliates	3			8			851			—			(854		)	8
	Trade accounts receivable – net	—			—			923			—			—			923
	Income taxes receivable	4			106			—			—			(110		)	—
	Accounts receivable from affiliates	—			2			—			—			(2		)	—
	Inventories	—			—			370			—			—			370
	Commodity and other derivative contractual assets	—			—			131			—			—			131
	Accumulated deferred income taxes	—			117			24			—			(24		)	117
	Margin deposits related to commodity positions	—			—			64			—			—			64
	Other current assets	—			3			51			—			—			54
	Total current assets	7			2,289			2,438			1			(990		)	3,745
	Restricted cash	—			751			—			—			—			751
	Investments	(23,025		)	14,077			920			8			8,924			904
	Property, plant and equipment – net	—			—			16,940			3			—			16,943
	Advances to parent and affiliates	—			9			—			—			—			9
	Goodwill	—			3,952			—			—			—			3,952
	Identifiable intangible assets – net	—			—			1,616			—			—			1,616
	Commodity and other derivative contractual assets	—			—			10			—			—			10
	Accumulated deferred income taxes	—			550			—			14			(564		)	—
	Other noncurrent assets	—			—			7			—			—			7
	Total assets	$	(23,018	)	$	21,628		$	21,931		$	26		$	7,370		$	27,937
	LIABILITIES AND MEMBERSHIP INTERESTS
	Notes/advances from affiliates	$	—		$	854		$	—		$	—		$	(854	)	$	—
	Trade accounts payable	—			1			433			—			—			434
	Trade accounts and other payables to affiliates	—			—			181			2			(2		)	181
	Commodity and other derivative contractual liabilities	—			—			112			—			—			112
	Margin deposits related to commodity positions	—			—			3			—			—			3
	Accumulated deferred income taxes	24			—			—			—			(24		)	—
	Accrued income taxes payable to parent	—			—			127			—			(110		)	17
	Accrued taxes other than income	—			—			86			—			—			86
	Accrued interest	1			109			1			—			—			111
	ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
	A DEBTOR-IN-POSSESSION
	Condensed Consolidating Balance Sheets
	30-Sep-14
	(millions of dollars)
		Parent			Issuer			Other			Non-guarantors			Eliminations			Consolidated
		Guarantor						Guarantors
	Other current liabilities	$	12		$	64		$	213		$	—		$	—		$	289
	Total current liabilities	37			1,028			1,156			2			(990		)	1,233
	Accumulated deferred income taxes	50			—			2,645			—			294			2,989
	Commodity and other derivative contractual liabilities	—			—			4			—			—			4
	Borrowings under debtor-in-possession credit facility	—			1,425			—			—			—			1,425
	Long-term debt, less amounts due currently	43			—			51			—			—			94
	Liabilities subject to compromise	146			42,181			32,510			—			(40,907		)	33,930
	Other noncurrent liabilities and deferred credits	6			18			1,656			—			—			1,680
	Total liabilities	282			44,652			38,022			2			(41,603		)	41,355
	Total membership interests	(23,300		)	(23,024		)	(16,091		)	24			48,973			(13,418		)
	Total liabilities and membership interests	$	(23,018	)	$	21,628		$	21,931		$	26		$	7,370		$	27,937
	ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
	A DEBTOR-IN-POSSESSION
	Condensed Consolidating Balance Sheets
	31-Dec-13
	(millions of dollars)
	Parent			Issuer			Other			Non-guarantors			Eliminations			Consolidated
	Guarantor						Guarantors
ASSETS
Current assets:
Cash and cash equivalents	$	—		$	725		$	16		$	5		$	—		$	746
Restricted cash	—			945			—			—			—			945
Advances to affiliates	5			—			191			—			(196		)	—
Trade accounts receivable – net	—			—			710			—			—			710
Income taxes receivable	—			—			240			—			(240		)	—
Accounts receivable from affiliates	—			8			—			—			(8		)	—
Inventories	—			—			399			—			—			399
Commodity and other derivative contractual assets	—			551			233			—			—			784
Accumulated deferred income taxes	—			117			28			—			(24		)	121
Margin deposits related to commodity positions	—			—			93			—			—			93
Other current assets	—			4			46			—			—			50
Total current assets	5			2,350			1,956			5			(468		)	3,848
Investments	(11,983		)	23,638			853			8			(11,678		)	838
Property, plant and equipment – net	—			—			17,646			3			—			17,649
Advances to affiliates	—			—			9,396			—			(9,396		)	—
Goodwill	—			3,952			—			—			—			3,952
Identifiable intangible assets – net	—			—			1,717			—			—			1,717
Commodity and other derivative contractual assets	—			—			4			—			—			4
Accumulated deferred income taxes	—			201			—			14			(215		)	—
Other noncurrent assets, principally unamortized amendment/issuance costs	—			776			787			—			(773		)	790
Total assets	$	(11,978	)	$	30,917		$	32,359		$	30		$	(22,530	)	$	28,798
LIABILITIES AND MEMBERSHIP INTERESTS
Current liabilities:
Borrowings under credit and other facilities	$	—		$	2,054		$	2,054		$	—		$	(2,054	)	$	2,054
Notes/advances from affiliates	—			9,592			—			—			(9,592		)	—
Debt held by affiliates	—			382			—			—			—			382
Notes, loans and other debt	96			29,612			28,750			—			(28,658		)	29,800
Trade accounts payable	—			3			378			—			—			381
Trade accounts and other payables to affiliates	—			—			169			3			(8		)	164
Notes payable to parent	103			—			—			—			—			103
Commodity and other derivative contractual liabilities	—			1,012			263			—			—			1,275
ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY LLC AND SUBSIDIARIES
A DEBTOR-IN-POSSESSION
Condensed Consolidating Balance Sheets
31-Dec-13
(millions of dollars)
	Parent			Issuer			Other			Non-guarantors			Eliminations			Consolidated
	Guarantor						Guarantors
Margin deposits related to commodity positions	$	—		$	299		$	3		$	—		$	—		$	302
Accumulated deferred income taxes	24			—			—			—			(24		)	—
Accrued income taxes payable to parent	2			259			—			—			(240		)	21
Accrued taxes other than income	—			—			120			—			—			120
Accrued interest	1			416			312			—			(310		)	419
Other current liabilities	—			—			272			—			—			272
Total current liabilities	226			43,629			32,321			3			(40,886		)	35,293
Accumulated deferred income taxes	62			—			2,748			—			772			3,582
Notes or other liabilities due affiliates	—			—			2			—			—			2
Liability to EFH Corp. under the Federal and State Income Tax Allocation Agreement	(5		)	(754		)	1,294			—			—			535
Other noncurrent liabilities and deferred credits	8			25			1,620			—			1			1,654
Total liabilities	291			42,900			37,985			3			(40,113		)	41,066
EFCH membership interests	(12,269		)	(11,983		)	(5,626		)	26			17,583			(12,269		)
Noncontrolling interests in subsidiaries	—			—			—			1			—			1
Total membership interests	(12,269		)	(11,983		)	(5,626		)	27			17,583			(12,268		)
Total liabilities and membership interests	$	(11,978	)	$	30,917		$	32,359		$	30		$	(22,530	)	$	28,798

Goodwill_And_Identifiable_Inta2

Goodwill And Identifiable Intangible Assets (Narrative) (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014
Goodwill [Line Items]	'
Business Acquisition, Goodwill, Expected Tax Deductible Amount	$0
Competitive Electric [Member]	'
Goodwill [Line Items]	'
Goodwill, Period Increase (Decrease)	$0

Goodwill_And_Identifiable_Inta3

Goodwill And Identifiable Intangible Assets (Goodwill) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]	'	'
Goodwill before impairment charges	'	$18,322
Accumulated noncash impairment charges	'	-14,370
Balance at September 30, 2014 and December 31, 2013	$3,952	$3,952

Goodwill_And_Identifiable_Inta4

Goodwill And Identifiable Intangible Assets (Identifiable Intangible Assets Reported in the Balance Sheet) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Finite-Lived and Indefinite-Lived Intangible [Line Items]	'	'
Gross Carrying Amount	$1,541	$1,528
Accumulated Amortization	887	777
Total intangible assets subject to amortization, net	654	751
Total identifiable intangible assets	1,616	1,717
Retail trade name (not subject to amortization) [Member]	'	'
Finite-Lived and Indefinite-Lived Intangible [Line Items]	'	'
Gross Carrying Amount, Unamortized Intangibles	955	955
Mineral interests (not currently subject to amortization) [Member]	'	'
Finite-Lived and Indefinite-Lived Intangible [Line Items]	'	'
Gross Carrying Amount, Unamortized Intangibles	7	11
Retail customer relationship [Member]	'	'
Finite-Lived and Indefinite-Lived Intangible [Line Items]	'	'
Gross Carrying Amount	463	463
Accumulated Amortization	419	402
Total intangible assets subject to amortization, net	44	61
Favorable purchase and sales contracts [Member]	'	'
Finite-Lived and Indefinite-Lived Intangible [Line Items]	'	'
Gross Carrying Amount	352	352
Accumulated Amortization	157	139
Total intangible assets subject to amortization, net	195	213
Software and other computer-related assets [Member]	'	'
Finite-Lived and Indefinite-Lived Intangible [Line Items]	'	'
Gross Carrying Amount	354	348
Accumulated Amortization	188	147
Total intangible assets subject to amortization, net	166	201
Environmental allowances and credits [Member]	'	'
Finite-Lived and Indefinite-Lived Intangible [Line Items]	'	'
Gross Carrying Amount	205	209
Accumulated Amortization	32	20
Total intangible assets subject to amortization, net	173	189
Mining development costs [Member]	'	'
Finite-Lived and Indefinite-Lived Intangible [Line Items]	'	'
Gross Carrying Amount	167	156
Accumulated Amortization	91	69
Total intangible assets subject to amortization, net	$76	$87

Goodwill_And_Identifiable_Inta5

Goodwill And Identifiable Intangible Assets (Amortization Expense Related to Intangible Assets (including income statement line item)) (Details) (USD $)	3 Months Ended				9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Finite-Lived Intangible Assets [Line Items]	'		'		'		'
Amortization expense	$40	[1]	$39	[1]	$118	[1]	$104	[1]
Depreciation and amortization [Member]	'		'		'		'
Finite-Lived Intangible Assets [Line Items]	'		'		'		'
Amortization expense	29		28		87		74
Retail customer relationship [Member] | Depreciation and amortization [Member]	'		'		'		'
Finite-Lived Intangible Assets [Line Items]	'		'		'		'
Amortization expense	6		6		17		18
Favorable purchase and sales contracts [Member] | Operating revenues/ Fuel, purchased power costs and delivery fees [Member]	'		'		'		'
Finite-Lived Intangible Assets [Line Items]	'		'		'		'
Amortization expense	6		6		18		19
Software and other computer-related assets [Member] | Depreciation and amortization [Member]	'		'		'		'
Finite-Lived Intangible Assets [Line Items]	'		'		'		'
Amortization expense	15		14		45		33
Environmental allowances and credits [Member] | Fuel, purchased power costs and delivery fees [Member]	'		'		'		'
Finite-Lived Intangible Assets [Line Items]	'		'		'		'
Amortization expense	5		5		13		11
Mining development costs [Member] | Depreciation and amortization [Member]	'		'		'		'
Finite-Lived Intangible Assets [Line Items]	'		'		'		'
Amortization expense	$8		$8		$25		$23
[1]	Amounts recorded in depreciation and amortization totaled $29 million and $28 million for the three months ended September 30, 2014 and 2013, respectively, and $87 million and $74 million for the nine months ended September 30, 2014 and 2013, respectively.

Goodwill_And_Identifiable_Inta6

Goodwill And Identifiable Intangible Assets (Estimated Amortization of Intangible Assets) (Details) (USD $)	Sep. 30, 2014
In Millions, unless otherwise specified
Future Amortization Expense	'
2014	$152
2015	140
2016	113
2017	88
2018	$62

DebtorInPossession_Borrowing_F2

Debtor-In-Possession Borrowing Facility - TCEH Debtor-In-Possession Facility (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Sep. 30, 2014		Sep. 30, 2014		Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014
			Texas Competitive Electric Holdings Company LLC [Member]	Texas Competitive Electric Holdings Company LLC [Member]		Texas Competitive Electric Holdings Company LLC [Member]		Texas Competitive Electric Holdings Company LLC [Member]	Texas Competitive Electric Holdings Company LLC [Member]	Texas Competitive Electric Holdings Company LLC [Member]	Railroad Commission of Texas [Member]
			Debtor-In-Possession Facility [Member]	Debtor-In-Possession Facility [Member]		Debtor-In-Possession Facility [Member]		Debtor-In-Possession Facility [Member]	Debtor-In-Possession Facility [Member]	Debtor-In-Possession Facility [Member]	Texas Competitive Electric Holdings Company LLC [Member]
				Senior Secured Super-Priority Revolving Credit Facility [Member]		Senior Secured Super-Priority Term Loan [Member]		Senior Secured Super-Priority Term Loan [Member]	Senior Secured Super-Priority Term Loan [Member]	Mining Reclamation Carve-Out Election Facility [Member]
								Cash and Cash Equivalents [Member]	Restricted Cash [Member]
Line of Credit Facility [Line Items]	'	'	'	'		'		'	'	'	'
TCEH DIP Facility Limit	'	'	$3,375,000,000	$1,950,000,000	[1]	$1,425,000,000	[2]	'	'	'	'
TCEH DIP Facility , Available Cash Borrowing Capacity	'	'	1,950,000,000	1,950,000,000	[1]	0	[2]	'	'	'	'
TCEH DIP, Available Letter of Credit Capacity	'	'	616,000,000	0	[1]	616,000,000	[2]	'	'	'	'
Borrowings under debtor-in-possession credit facility (Note 5)	1,425,000,000	0	'	0		1,425,000,000		'	'	'	'
Debtor-In-Possession Financing, Maximum Borrowings Allowed Without Consent Or Bankruptcy Court Order	'	'	'	1,650,000,000		'		'	'	'	'
Debtor-In-Possession Financing, Amount Arranged, Maximum Letter of Credit Capacity	'	'	'	'		800,000,000		'	'	'	'
Debtor-In-Possession Financing, Collateral Account, Total Amount Held To Support Letters Of Credit	'	'	'	'		800,000,000		616,000,000	184,000,000	'	'
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	'	'	0.75%	'		'		'	'	'	'
Debt Instrument, Basis Spread on Variable Rate	'	'	3.00%	'		'		'	'	'	'
Debtor-in-Possession Financing, Interest Rate on Borrowings Outstanding	'	'	3.75%	'		'		'	'	'	'
Collateral Bond, Securing Mining Land Reclamation Obligations, Secured By First Lien Interest In Assets	'	'	'	'		'		'	'	'	1,100,000,000
Debtor-In-Possession Financing, Amount Terminated	'	'	'	'		'		'	'	$1,100,000,000	'
[1]	Facility used for general corporate purposes. No amounts were borrowed at September 30 or November 4, 2014. Pursuant to an order of the Bankruptcy Court, the TCEH Debtors may not have more than $1.650 billion of TCEH DIP Revolving Credit Facility cash borrowings outstanding without written consent of the committee of unsecured creditors and the ad hoc group of TCEH unsecured note holders or further order of the Bankruptcy Court.
[2]	Facility used for general corporate purposes, including but not limited to, $800 million for issuing letters of credit.

Reorganization_Items_Details

Reorganization Items (Details) (USD $)	3 Months Ended			5 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2014	Sep. 30, 2013
Reorganization Items [Abstract]	'		'	'		'	'
Liability adjustment arising from termination of interest rate swaps (Note 12)	$0		'	$277		$277	$0
Fees associated with completion of TCEH DIP Facility (a)	-5	[1]	'	87	[1]	87	0
Expenses related to legal advisory and representation services	30		'	51		'	'
Expenses related to other professional consulting and advisory services	20		'	52		'	'
Other	0		'	1		'	'
Total reorganization items	$45		$0	$468		$468	$0
[1]	Amounts for the three months ended September 30, 2014 represent a refund of fees due to the termination of the RCT Delayed Draw Letter of Credit commitment under the TCEH DIP Facility as discussed in Note 5.

Liabilities_Subject_To_Comprom1

Liabilities Subject To Compromise Borrowing Facilities and Debt (Liabilities Subject To Compromise) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Liabilities Subject to Compromise [Abstract]	'	'
Notes, loans and other debt per the following table	$31,194	'
Notes, loans and other debt per the following table	668	'
Net liability under terminated TCEH interest rate swap and natural gas hedging agreements (Note 12)	1,235	'
Trade accounts payable and accrued liabilities	168	'
Liability under the Federal and State Income Tax Allocation Agreement (Note 13)	535	'
Advances and other payables to affiliates	130	'
Total liabilities subject to compromise	$33,930	$0

Liabilities_Subject_To_Comprom2

Liabilities Subject To Compromise Borrowing Facilities and Debt (Schedule of Long-term Debt Instruments) (Details) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Jan. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

In Millions, unless otherwise specified

Consolidated Debt [Member]

Consolidated Debt [Member]

Deferred Debt Issuance And Extension Costs [Member]

Deferred Debt Issuance And Extension Costs [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Brazos River Authority [Member]

Sabine River Authority of Texas [Member]

Sabine River Authority of Texas [Member]

Sabine River Authority of Texas [Member]

Sabine River Authority of Texas [Member]

Sabine River Authority of Texas [Member]

Sabine River Authority of Texas [Member]

Sabine River Authority of Texas [Member]

Sabine River Authority of Texas [Member]

Trinity River Authority of Texas [Member]

Trinity River Authority of Texas [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Pollution control revenue bonds [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Senior Secured Debt [Member]

Senior Secured Debt [Member]

Senior Secured Debt [Member]

Senior Secured Debt [Member]

Senior Secured Debt [Member]

Senior Secured Debt [Member]

Senior Secured Debt [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Fixed Secured Facility Bonds [Member]

Fixed Secured Facility Bonds [Member]

Fixed Secured Facility Bonds [Member]

Fixed Secured Facility Bonds [Member]

Capital Lease Obligations [Member]

Capital Lease Obligations [Member]

Other Debt Obligations [Member]

Other Debt Obligations [Member]

Unamortized Discount [Member]

Unamortized Discount [Member]

Unamortized Fair Value Discount [Member]

Notes Payable to Banks [Member]

Notes Payable to Banks [Member]

Notes Payable to Banks [Member]

Notes Payable to Banks [Member]

Junior Subordinated Debt [Member]

Junior Subordinated Debt [Member]

Junior Subordinated Debt [Member]

Junior Subordinated Debt [Member]

Unamortized Fair Value Discount [Member]

Unamortized Fair Value Discount [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Energy Future Holdings Corp. [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Energy Future Holdings Corp. [Member]

TCEH Term Loan Facilities maturing October 10, 2014 [Member]

TCEH Term Loan Facilities maturing October 10, 2014 [Member]

TCEH Term Loan Facilities maturing October 10, 2017 [Member]

TCEH Term Loan Facilities maturing October 10, 2017 [Member]

Letter of Credit Facility maturing October 10, 2014 [Member]

Letter of Credit Facility maturing October 10, 2014 [Member]

TCEH Letter of Credit Facility maturing October 10, 2017 [Member]

TCEH Letter of Credit Facility maturing October 10, 2017 [Member]

Revolving Credit Facility maturing October 2016 [Member]

Revolving Credit Facility maturing October 2016 [Member]

11.5% Fixed Senior Secured Notes due October 1, 2020 [Member]

11.5% Fixed Senior Secured Notes due October 1, 2020 [Member]

15% Fixed Senior Secured Second Lien Notes due April 1, 2021 [Member]

15% Fixed Senior Secured Second Lien Notes due April 1, 2021 [Member]

15% Fixed Senior Secured Second Lien Notes due April 1, 2021, Series B [Member]

15% Fixed Senior Secured Second Lien Notes due April 1, 2021, Series B [Member]

10.25% Fixed Senior Notes due November 1, 2015 [Member]

10.25% Fixed Senior Notes due November 1, 2015 [Member]

10.25% Fixed Senior Notes due November 1, 2015, Series B [Member]

10.25% Fixed Senior Notes due November 1, 2015, Series B [Member]

10.50 / 11.25% Senior Toggle Notes due November 1, 2016 [Member]

10.50 / 11.25% Senior Toggle Notes due November 1, 2016 [Member]

Fixed 7.48% Secured Facility Bonds With Amortizing Payments Through January 2017 [Member]

Fixed 7.48% Secured Facility Bonds With Amortizing Payments Through January 2017 [Member]

7.46% Fixed Secured Facility Bonds with amortizing payments through January 2015 [Member]

7.46% Fixed Secured Facility Bonds with amortizing payments through January 2015 [Member]

Pollution control revenue bonds [Member]

9.58% Fixed Notes due in annual installments through December 4, 2019 [Member]

9.58% Fixed Notes due in annual installments through December 4, 2019 [Member]

8.254% Fixed Notes due in quarterly installments through December 31, 2021 [Member]

8.254% Fixed Notes due in quarterly installments through December 31, 2021 [Member]

Floating Rate Junior Subordinated Debentures, Series D due January 30, 2037 [Member]

Floating Rate Junior Subordinated Debentures, Series D due January 30, 2037 [Member]

8.175% Fixed Junior Subordinated Debentures, Series E due January 30, 2037 [Member]

8.175% Fixed Junior Subordinated Debentures, Series E due January 30, 2037 [Member]

10.875% Fixed Senior Notes and 11.25%/12.00% Senior Toggle Notes [Member]

10.875% Fixed Senior Notes and 11.25%/12.00% Senior Toggle Notes [Member]

10.875% Fixed Senior Notes due November 1, 2017 [Member]

10.875% Fixed Senior Notes due November 1, 2017 [Member]

11.25 / 12.00% Senior Toggle Notes due November 1, 2017 [Member]

11.25 / 12.00% Senior Toggle Notes due November 1, 2017 [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

US States and Political Subdivisions Debt Securities [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

5.40% Fixed Series 1994A due May 1, 2029 [Member]

5.40% Fixed Series 1994A due May 1, 2029 [Member]

7.70% Fixed Series 1999A due April 1, 2033 [Member]

7.70% Fixed Series 1999A due April 1, 2033 [Member]

7.70% Fixed Series 1999C due March 1, 2032 [Member]

7.70% Fixed Series 1999C due March 1, 2032 [Member]

8.25% Fixed Series 2001A due October 1, 2030 [Member]

8.25% Fixed Series 2001A due October 1, 2030 [Member]

8.25% Fixed Series 2001D-1 due May 1, 2033 [Member]

8.25% Fixed Series 2001D-1 due May 1, 2033 [Member]

Floating Series 2001D-2 due May 1, 2033 [Member]

Floating Series 2001D-2 due May 1, 2033 [Member]

Floating Taxable Series 2001I due December 1, 2036 [Member]

Floating Taxable Series 2001I due December 1, 2036 [Member]

Floating Series 2002A due May 1, 2037 [Member]

Floating Series 2002A due May 1, 2037 [Member]

6.30% Fixed Series 2003B due July 1, 2032 [Member]

6.30% Fixed Series 2003B due July 1, 2032 [Member]

6.75% Fixed Series 2003C due October 1, 2038 [Member]

6.75% Fixed Series 2003C due October 1, 2038 [Member]

5.40% Fixed Series 2003D due October 1, 2029, remarketing date October 1, 2014 [Member]

5.40% Fixed Series 2003D due October 1, 2029, remarketing date October 1, 2014 [Member]

5.00% Fixed Series 2006 due March 1, 2041 [Member]

5.00% Fixed Series 2006 due March 1, 2041 [Member]

6.45% Fixed Series 2000A due June 1, 2021 [Member]

6.45% Fixed Series 2000A due June 1, 2021 [Member]

5.20% Fixed Series 2001C due May 1, 2028 [Member]

5.20% Fixed Series 2001C due May 1, 2028 [Member]

5.80% Fixed Series 2003A due July 1, 2022 [Member]

5.80% Fixed Series 2003A due July 1, 2022 [Member]

6.15% Fixed Series 2003B due August 1, 2022 [Member]

6.15% Fixed Series 2003B due August 1, 2022 [Member]

6.25% Fixed Series 200A due May 1, 2028 [Member]

6.25% Fixed Series 200A due May 1, 2028 [Member]

10.50 / 11.25% Senior Toggle Notes due November 1, 2016 [Member]

11.25 / 12.00% Senior Toggle Notes due November 1, 2017 [Member]

10.50 / 11.25% Senior Toggle Notes due November 1, 2016 [Member]

11.25 / 12.00% Senior Toggle Notes due November 1, 2017 [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Liabilities Subject To Compromise, Debt

$31,194

'

$31,194

'

($702)

[1]

$0

[1]

$31,858

'

'

$22,635

$3,809

'

$15,710

[2]

'

$42

'

$1,020

'

$2,054

$2,054

'

$1,571

$1,750

'

$336

'

$1,235

'

$382

$2,046

[2]

'

$1,442

[2]

'

$1,749

'

$0

[3]

'

$0

[3]

'

$0

'

$3

'

($91)

'

($103)

[4]

$8

'

$0

[3]

'

$0

[3]

'

$1

'

$8

'

($1)

'

$38

'

$30

[5]

'

$16

[5]

'

$14

[5]

'

$39

'

$111

'

$50

'

$71

'

$171

'

$0

[6]

'

$0

[6]

'

$0

[6]

'

$39

'

$52

'

$31

'

$100

'

$51

'

$70

'

$12

'

$45

'

$14

'

'

'

'

'

Long-term Debt, Gross

'

'

'

'

'

'

'

'

'

'

'

3,809

'

15,710

[2]

'

42

'

1,020

'

'

'

'

'

1,750

'

336

'

1,235

'

'

2,046

[2]

'

1,442

[2]

'

1,749

'

36

[3]

'

4

[3]

'

'

'

'

'

'

'

'

'

'

29

[3]

'

34

[3]

'

1

'

8

'

'

'

'

'

'

'

16

[5]

'

14

[5]

'

39

'

111

'

50

'

71

'

171

'

97

[6]

'

62

[6]

'

45

[6]

'

39

'

52

'

31

'

100

'

51

'

70

'

12

'

45

'

14

'

'

'

'

Unamortized fair value premium (discount)

'

'

'

'

'

'

'

'

-105

[4]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-6

[4]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt and Capital Lease Obligations

'

'

'

32,236

'

'

'

32,140

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

66

'

'

'

'

'

'

'

'

'

'

'

96

'

30

[5]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capital lease obligations

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

52

[3]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unamortized discount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-103

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Notes, loans and other debt

$0

$31,854

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$2,054

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stated interest rate (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

11.50%

'

15.00%

'

15.00%

'

'

10.25%

'

10.25%

'

'

'

7.48%

'

7.46%

'

'

'

'

'

'

'

'

'

'

9.58%

'

8.25%

'

'

'

8.18%

'

'

'

'

'

'

'

10.88%

'

'

'

5.40%

'

7.70%

'

7.70%

'

8.25%

'

8.25%

'

'

'

'

'

'

'

6.30%

'

6.75%

'

5.40%

'

5.00%

'

6.45%

'

5.20%

'

5.80%

'

6.15%

'

6.25%

'

'

'

'

'

Effective interest rate (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10.50%

11.25%

11.25%

12.00%

Percentage of securities guaranteed by and push down debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

Deferred debt issuance and extension costs were reported in other noncurrent assets at December 31, 2013.

[2]

As discussed below and in Note 13, principal amounts of notes/term loans totaling $382 million at both September 30, 2014 and December 31, 2013 were held by EFH Corp. and EFIH.

[3]

Amounts classified as debt in the condensed consolidated balance sheet at September 30, 2014. See (a) and (b) notes to condensed consolidated balance sheets.

[4]

Amount represents unamortized fair value adjustments recorded under purchase accounting.

[5]

Represents 50% of the amount of these EFH Corp. securities guaranteed by, and pushed down to (pushed-down debt), EFCH (parent entity) per the discussion below under "Guarantees and Push Down of EFH Corp. Pre-Petition Debt."

[6]

These bonds were tendered and settled through letter of credit draws.

Liabilities_Subject_To_Comprom3

Liabilities Subject To Compromise Borrowing Facilities and Debt (Guarantees and Push Down of EFH Corp. Pre-Petition Debt) (Details) (USD $)

9 Months Ended

1 Months Ended

In Millions, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Apr. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Mar. 31, 2013

Jul. 31, 2014

Push Down Debt [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Subject to Push Down [Member]

Subject to Push Down [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Letter of Credit [Member]

Senior Notes [Member]

Senior Notes [Member]

Line of Credit [Member]

Financial guarantee [Member]

Financial guarantee [Member]

Push Down Debt [Member]

Push Down Debt [Member]

Push Down Debt [Member]

Line of Credit [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Senior Notes [Member]

Senior Notes [Member]

10.875% Fixed Senior Notes due November 1, 2017 [Member]

11.25 / 12.00% Senior Toggle Notes due November 1, 2017 [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Remaining Borrowing Capacity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$7

Debt Instrument Principal Amount Guarantee Obligations Of Subsidiaries

'

'

'

'

60

'

'

'

'

33

27

'

'

'

'

Liabilities Subject To Compromise, Debt

31,194

'

30

8

'

'

31,858

382

22,635

'

'

'

'

'

'

Debt Instrument, Percentage of principal plus unamortized premium of Parent Merger-related debt guaranteed by subsidiary

'

'

'

'

'

'

'

'

'

'

'

50.00%

50.00%

50.00%

'

Payment of Interest on Pushed-down Debt Accounted for as a Contribution of Capital (net of tax)

0

21

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Payment Amount, Election To Use Permitted Grace Period

'

'

'

'

'

$123

'

'

'

'

'

'

'

'

'

Liabilities_Subject_To_Comprom4

Liabilities Subject To Compromise Borrowing Facilities and Debt (Information Regarding Significant Pre-Petition Debt) (Details) (USD $)

Sep. 30, 2014

Apr. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Jan. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Mar. 31, 2014

Sep. 30, 2014

Sep. 30, 2014

In Millions, unless otherwise specified

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Eliminations [Member]

Pollution control revenue bonds [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Revolving Credit Facility [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Texas Competitive Electric Holdings Company LLC [Member]

TCEH Term Loan Facilities maturing October 10, 2014 [Member]

TCEH Term Loan Facilities maturing October 10, 2017 [Member]

TCEH Letter of Credit Facility maturing October 10, 2017 [Member]

Letter of Credit Facility maturing October 10, 2014 [Member]

Letter of Credit Facility maturing October 2017 [Member]

Letter of Credit Facility maturing October 2017 [Member]

Line of Credit [Member]

TCEH Term Loan Facilities maturing October 10, 2014 [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Payment Amount, Election To Use Permitted Grace Period

'

$123

'

'

'

'

'

'

'

'

'

'

'

Liabilities Subject To Compromise, Debt

31,194

'

31,858

'

22,635

3,809

15,710

[1]

2,054

1,020

42

'

'

19

Debt Instrument, Basis Spread on Variable Rate

'

'

'

'

'

3.50%

4.50%

'

'

'

'

'

'

Liabilities subject to compromise (Note 7)

567

'

'

'

'

'

'

'

'

'

'

'

'

Restricted Cash, Amount supported in letters of credit outstanding

'

'

'

'

'

'

'

'

'

'

'

354

'

Letters Of Credit Issued To Affiliated Party

'

'

'

'

'

'

'

'

'

'

157

'

'

Letters Of Credit Drawn By Affiliated Party

'

'

'

'

'

'

'

'

'

'

'

150

'

Letters of Credit Drawn By Nonaffiliated Counterparties

'

'

228

'

'

'

'

'

'

'

'

'

'

Repayments of Debt

'

'

'

$204

'

'

'

'

'

'

'

'

'

[1]

As discussed below and in Note 13, principal amounts of notes/term loans totaling $382 million at both September 30, 2014 and December 31, 2013 were held by EFH Corp. and EFIH.

Liabilities_Subject_To_Comprom5

Liabilities Subject To Compromise Borrowing Facilities and Debt (TCEH Senior Secured Facilities) (Details) (USD $)

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Jan. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Mar. 31, 2014

Sep. 30, 2014

Sep. 30, 2014

In Millions, unless otherwise specified

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Eliminations [Member]

Pollution control revenue bonds [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Revolving Credit Facility [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Letter of Credit [Member]

Texas Competitive Electric Holdings Company LLC [Member]

TCEH Term Loan Facilities maturing October 10, 2014 [Member]

TCEH Term Loan Facilities maturing October 10, 2014 [Member]

TCEH Term Loan Facilities maturing October 10, 2017 [Member]

TCEH Term Loan Facilities maturing October 10, 2017 [Member]

TCEH Letter of Credit Facility maturing October 10, 2017 [Member]

TCEH Letter of Credit Facility maturing October 10, 2017 [Member]

Letter of Credit Facility maturing October 10, 2014 [Member]

Letter of Credit Facility maturing October 10, 2014 [Member]

Letter of Credit Facility maturing October 2017 [Member]

Letter of Credit Facility maturing October 2017 [Member]

Line of Credit [Member]

TCEH Term Loan Facilities maturing October 10, 2014 [Member]

Debt Disclosure [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Liabilities Subject To Compromise, Debt

$31,194

$31,858

'

$22,635

$3,809

'

$15,710

[1]

'

$2,054

$1,020

'

$42

'

'

'

$19

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term Debt, Gross

'

'

'

'

'

3,809

'

15,710

[1]

'

'

1,020

'

42

'

'

'

Basis Spread on LIBOR Rate (as a percent)

'

'

'

'

3.50%

'

4.50%

'

'

'

'

'

'

'

'

'

Liabilities subject to compromise (Note 7)

567

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Restricted Cash, Amount supported in letters of credit outstanding

'

'

'

'

'

'

'

'

'

'

'

'

'

'

354

'

Restricted Cash, Amount Supported in Letters of Credit No Longer Available

'

'

'

'

'

'

'

'

'

213

'

'

'

'

'

'

Letters Of Credit Issued To Affiliated Party

'

'

'

'

'

'

'

'

'

'

'

'

'

157

'

'

Letters Of Credit Drawn By Affiliated Party

'

'

'

'

'

'

'

'

'

'

'

'

'

'

150

'

Letters of Credit Drawn By Nonaffiliated Counterparties

'

228

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayments of Debt

'

'

$204

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

As discussed below and in Note 13, principal amounts of notes/term loans totaling $382 million at both September 30, 2014 and December 31, 2013 were held by EFH Corp. and EFIH.

Liabilities_Subject_To_Comprom6

Liabilities Subject To Compromise Borrowing Facilities and Debt (Senior Notes and Other) (Details) (USD $)	Sep. 30, 2014
In Millions, unless otherwise specified
Debt Instrument [Line Items]	'
Liabilities Subject To Compromise, Debt	$31,194
Texas Competitive Electric Holdings Company LLC [Member]	'
Debt Instrument [Line Items]	'
Liabilities Subject To Compromise, Debt	31,858
Texas Competitive Electric Holdings Company LLC [Member] | Senior Secured Debt [Member]	'
Debt Instrument [Line Items]	'
Liabilities Subject To Compromise, Debt	1,571
Texas Competitive Electric Holdings Company LLC [Member] | Senior Secured Debt [Member] | 11.5% Fixed Senior Secured Notes due October 1, 2020 [Member]	'
Debt Instrument [Line Items]	'
Liabilities Subject To Compromise, Debt	1,750
Texas Competitive Electric Holdings Company LLC [Member] | Senior Notes [Member]	'
Debt Instrument [Line Items]	'
Liabilities Subject To Compromise, Debt	382
Texas Competitive Electric Holdings Company LLC [Member] | Senior Notes [Member] | Fixed Senior Notes due November 1, 2015 and Senior Toggle Notes due November 1, 2016 [Member]	'
Debt Instrument [Line Items]	'
Liabilities Subject To Compromise, Debt	5,237
Eliminations [Member] | Financial guarantee [Member] | Texas Competitive Electric Holdings Company LLC [Member] | Senior Notes [Member]	'
Debt Instrument [Line Items]	'
Liabilities Subject To Compromise, Debt	$363

Interest_Expense_and_Related_C2

Interest Expense and Related Charges (Interest Expense and Related Charges)(Details) (USD $)

3 Months Ended

5 Months Ended

9 Months Ended

3 Months Ended

5 Months Ended

3 Months Ended

5 Months Ended

3 Months Ended

9 Months Ended

9 Months Ended

In Millions, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Energy Future Competitive Holdings Company [Member]

Energy Future Competitive Holdings Company [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Line of Credit [Member]

Secured Debt [Member]

11.5% Fixed Senior Secured Notes due October 1, 2020 [Member]

Adequate Protection Interest Expense [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Secured Debt [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Interest Expense and Related Charges [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest paid/accrued on debtor-in-possession financing

$16

$0

'

$22

$0

'

'

'

'

'

'

'

'

'

'

'

'

Adequate protection amounts paid/accrued

308

[1]

0

[1]

'

519

[1]

0

[1]

'

'

'

'

'

'

'

'

'

'

'

'

Interest paid/accrued on pre-petition debt (including net amounts paid/accrued under interest rate swaps)

3

[2]

688

[2]

'

883

[2]

2,042

[2]

'

'

'

'

'

'

'

'

'

'

'

'

Interest related to pushed down debt

0

1

'

1

5

'

'

'

'

'

'

'

'

'

'

'

'

Noncash realized net loss on termination of interest rate swaps (offset in unrealized net gain)

0

[3]

0

[3]

'

1,225

[3]

0

[3]

'

'

'

'

'

'

-1,225

'

'

'

'

'

Unrealized mark-to-market net gain on interest rate swaps

0

-413

'

-1,290

-899

'

'

'

'

'

'

'

'

'

'

'

'

Amortization of interest rate swap losses at dedesignation of hedge accounting

0

2

'

-1

6

'

'

'

'

'

'

'

'

'

'

'

'

Amortization of fair value debt discounts resulting from purchase accounting

0

3

'

3

8

'

'

'

'

'

'

'

'

'

'

'

'

Amortization of debt issuance, amendment and extension costs and discounts

1

64

'

86

195

'

'

'

'

'

'

'

'

'

'

'

'

Capitalized interest

-3

-5

'

-14

-19

'

'

'

'

'

'

'

'

'

'

'

'

Total interest expense and related charges

325

340

'

1,434

1,338

'

'

'

'

'

'

'

'

'

'

'

'

Gain (Loss) on Derivative Instruments, Net, Pretax

'

'

'

'

'

'

'

'

'

'

160

193

466

'

'

'

'

Gain (Loss) On Derivative Instruments, Net, Pretax, Representing Matured Positions Not Settled In Cash During the Period

'

'

'

'

'

'

'

'

'

'

'

127

'

'

'

'

'

Liabilities Subject To Compromise, Debt

31,194

'

31,194

31,194

'

31,858

31,858

'

'

'

'

'

'

22,635

1,571

1,750

'

Liabilities Subject To Compromise, Liability Under Terminated Agreements, Net

1,235

'

1,235

1,235

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt and Capital Lease Obligations

'

'

'

'

'

'

'

32,140

'

'

'

'

'

'

'

'

'

Adequate Protection Paid Or Accrued, Weighted Average Interest Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.65%

Adequate Protection Paid Or Accrued, Basis Spread on Variable Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.50%

Contractual Interest Expense On Pre-Petition Liabilities Classified As Liabilities Subject To Compromise

'

'

'

'

'

'

'

'

516

874

'

'

'

'

'

'

'

Interest Expense On Prepetition Liabilities Recognized In Statement of Operations, Adequate Protection Paid Or Accrued

'

'

'

'

'

293

494

'

'

'

'

'

'

'

'

'

'

Contractual Interest Expense on Prepetition Liabilities Not Recognized in Statement of Operations

'

'

'

'

'

'

'

'

223

380

'

'

'

'

'

'

'

Adequate Protection Interest Paid-Accrued, Amount Excluded Related To Terminated Natural Gas Hedging Positions And Interest Rate Swaps

$15

'

$25

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

Post-petition period only.

[2]

Includes amounts related to interest rate swaps totaling $160 million for the three months ended September 30, 2013, and $193 million and $466 million for the nine months ended September 30, 2014 and 2013, respectively. Of the $193 million for the nine months ended September 30, 2014, $127 million represents matured positions that have not been settled in cash and is included in the liability arising from the termination of TCEH interest rate swaps discussed in Note 12.

[3]

See Note 12.

Commitments_And_Contingencies_

Commitments And Contingencies (Narrative) (Details) (USD $)	1 Months Ended	9 Months Ended
	Feb. 29, 2012	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014
	CSAPR [Member]	Sierra Club Versus EFH Corp And Luminant (Big Brown Generation Facility) [Member]	Sierra Club Versus EFH Corp and Luminant (Martin Lake Generation Facility) [Member]	Sierra Club Versus EFH Corp and Luminant (Martin Lake Generation Facility) [Member]	Sierra Club Versus EFH Corp and Luminant (Martin Lake Generation Facility) [Member]	EPA Versus Luminant and Big Brown Power Company (Big Brown and Martin Lake Generation Facilities) [Member]	EPA Versus Luminant and Big Brown Power Company (Big Brown and Martin Lake Generation Facilities) [Member]	Texas Competitive Electric Holdings Company LLC [Member]	Texas Competitive Electric Holdings Company LLC [Member]	Texas Competitive Electric Holdings Company LLC [Member]	Texas Competitive Electric Holdings Company LLC [Member]
		Pending Litigation [Member]	Pending Litigation [Member]	Pending Litigation [Member]	Pending Litigation [Member]	Pending Litigation [Member]	Pending Litigation [Member]	Financial Standby Letter of Credit [Member]	Financial Standby Letter of Credit [Member]	Financial Standby Letter of Credit [Member]	Financial Standby Letter of Credit [Member]
				Minimum [Member]	Maximum [Member]	Minimum [Member]	Maximum [Member]		Support risk management and trading margin requirements, including over-the-counter hedging transactions and collateral postings with ERCOT [Member]	Support Retail Electric Provider's financial requirements with the PUCT [Member]	Miscellaneous credit support requirements [Member]
Commitments and Contingencies [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Letters of Credit	'	'	'	'	'	'	'	$538,000,000	$334,000,000	$62,000,000	$142,000,000
Loss Contingency, Damages Sought, Value	'	337,000,000	147,000,000	'	'	'	'	'	'	'	'
Gain Contingency, Unrecorded Amount	'	6,400,000	'	'	'	'	'	'	'	'	'
Loss Contingency Damages Sought Value Per Day	'	'	'	$32,500	$37,500	$32,500	$37,500	'	'	'	'
Emissions budget generation assets lower sulfur dioxide requirements (as a percent)	6.00%	'	'	'	'	'	'	'	'	'	'
Emissions budget generation assets higher annual nitrogen oxides requirements (as a percent)	3.00%	'	'	'	'	'	'	'	'	'	'
Emissions budget generation assets higher seasonal nitrogen oxides requirements (as a percent)	2.00%	'	'	'	'	'	'	'	'	'	'

Membership_InterestsEquity_Equ

Membership Interests/Equity (Equity) (Details) (USD $)	3 Months Ended		9 Months Ended					9 Months Ended			9 Months Ended			9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013	Jun. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2013
					Common Stock [Member]	Retained Earnings [Member]	Retained Earnings [Member]	Membership Interests [Member]	Membership Interests [Member]	Membership Interests [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]	Noncontrolling Interest [Member]	Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'
Beginning Balance	'	($10,643)	($12,268)	($10,394)	$7,665	($18,129)	$0	($12,233)	$0	($10,711)	($36)	($42)	($37)	$1	$112	$105
Net loss	'	'	-1,168	-686	0	-526	'	-1,168	-160	'	0	0	'	0	0	'
Effect of stock-based incentive compensation plans	'	'	2	'	'	'	'	2	'	'	0	'	'	0	'	'
Net effect of cash flow hedges	0	1	1	5	0	0	'	0	0	'	1	5	'	0	0	'
Investment by noncontrolling interests	'	'	1	3	0	0	'	0	0	'	0	0	'	1	3	'
Effect of debt push-down from EFH Corp.	'	'	16	437	434	0	'	16	3	'	0	0	'	0	0	'
Dissolution of TXU Receivables Company	'	'	'	-10	0	0	'	'	0	'	'	0	'	'	-10	'
Capital structure conversion	'	'	'	0	-8,099	18,655	'	'	-10,556	'	'	0	'	'	0	'
Other	'	'	-2	2	0	0	'	0	2	'	0	0	'	-2	0	'
Ending Balance	($13,418)	'	($13,418)	'	$0	'	$0	($13,383)	'	($10,711)	($35)	'	($37)	$0	'	$105

Fair_Value_Measurements_Schedu

Fair Value Measurements (Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Assets:	'		'
Nuclear decommissioning trust	$859		$791
Nuclear decommissioning trust – equity securities [Member]	'		'
Assets:	'		'
Nuclear decommissioning trust	565	[1]	521	[1]
Nuclear decommissioning trust – debt securities [Member]	'		'
Assets:	'		'
Nuclear decommissioning trust	294	[2]	270	[2]
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]	'		'
Assets:	'		'
Total assets	438		491
Liabilities:	'		'
Total liabilities	97		231
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Nuclear decommissioning trust – equity securities [Member]	'		'
Assets:	'		'
Nuclear decommissioning trust	358	[3]	330	[3]
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Nuclear decommissioning trust – debt securities [Member]	'		'
Assets:	'		'
Nuclear decommissioning trust	'	[3]	0	[3]
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Commodity contracts [Member]	'		'
Assets:	'		'
Commodity contracts	80		161
Liabilities:	'		'
Derivative Liability	97		231
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Interest rate swaps [Member]	'		'
Liabilities:	'		'
Derivative Liability	'		0
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]	'		'
Assets:	'		'
Total assets	524		1,031
Liabilities:	'		'
Total liabilities	10		14
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Nuclear decommissioning trust – equity securities [Member]	'		'
Assets:	'		'
Nuclear decommissioning trust	207	[3]	191	[3]
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Nuclear decommissioning trust – debt securities [Member]	'		'
Assets:	'		'
Nuclear decommissioning trust	294	[3]	270	[3]
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Commodity contracts [Member]	'		'
Assets:	'		'
Commodity contracts	23		570
Liabilities:	'		'
Derivative Liability	10		14
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Interest rate swaps [Member]	'		'
Liabilities:	'		'
Derivative Liability	'		'
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]	'		'
Assets:	'		'
Total assets	37	[4]	57	[4]
Liabilities:	'		'
Total liabilities	8	[4]	1,030	[4]
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Nuclear decommissioning trust – equity securities [Member]	'		'
Assets:	'		'
Nuclear decommissioning trust	0	[3],[4]	0	[3],[4]
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Nuclear decommissioning trust – debt securities [Member]	'		'
Assets:	'		'
Nuclear decommissioning trust	0	[3],[4]	0	[3],[4]
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Commodity contracts [Member]	'		'
Assets:	'		'
Commodity contracts	37	[4]	57	[4]
Liabilities:	'		'
Derivative Liability	8	[4]	18	[4]
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Interest rate swaps [Member]	'		'
Liabilities:	'		'
Derivative Liability	'		1,012	[4]
Fair Value, Measurements, Recurring [Member] | Reclassification [Member]	'		'
Assets:	'		'
Total assets	1	[5]	'	[5]
Liabilities:	'		'
Total liabilities	1	[5]	'	[5]
Fair Value, Measurements, Recurring [Member] | Reclassification [Member] | Nuclear decommissioning trust – equity securities [Member]	'		'
Assets:	'		'
Nuclear decommissioning trust	'	[5]	'	[5]
Fair Value, Measurements, Recurring [Member] | Reclassification [Member] | Nuclear decommissioning trust – debt securities [Member]	'		'
Assets:	'		'
Nuclear decommissioning trust	'	[5]	'	[5]
Fair Value, Measurements, Recurring [Member] | Reclassification [Member] | Commodity contracts [Member]	'		'
Assets:	'		'
Commodity contracts	1	[5]	'	[5]
Liabilities:	'		'
Derivative Liability	1	[5]	'	[5]
Fair Value, Measurements, Recurring [Member] | Reclassification [Member] | Interest rate swaps [Member]	'		'
Liabilities:	'		'
Derivative Liability	'		'	[5]
Total [Member] | Fair Value, Measurements, Recurring [Member]	'		'
Assets:	'		'
Total assets	1,000		1,579
Liabilities:	'		'
Total liabilities	116		1,275
Total [Member] | Fair Value, Measurements, Recurring [Member] | Nuclear decommissioning trust – equity securities [Member]	'		'
Assets:	'		'
Nuclear decommissioning trust	565	[3]	521	[3]
Total [Member] | Fair Value, Measurements, Recurring [Member] | Nuclear decommissioning trust – debt securities [Member]	'		'
Assets:	'		'
Nuclear decommissioning trust	294	[3]	270	[3]
Total [Member] | Fair Value, Measurements, Recurring [Member] | Commodity contracts [Member]	'		'
Assets:	'		'
Commodity contracts	141		788
Liabilities:	'		'
Derivative Liability	116		263
Total [Member] | Fair Value, Measurements, Recurring [Member] | Interest rate swaps [Member]	'		'
Liabilities:	'		'
Derivative Liability	'		$1,012
[1]	The investment objective for equity securities is to invest tax efficiently and to match the performance of the S&P 500 Index.
[2]	The investment objective for debt securities is to invest in a diversified tax efficient portfolio with an overall portfolio rating of AA or above as graded by S&P or Aa2 by Moody's Investors Services, Inc. The debt securities are heavily weighted with municipal bonds. The debt securities had an average coupon rate of 4.09% and 3.96% at September 30, 2014 and December 31, 2013, respectively, and an average maturity of 6 years at both September 30, 2014 and December 31, 2013.
[3]	The nuclear decommissioning trust investment is included in the investments line in the condensed consolidated balance sheets. See Note 14.
[4]	See table below for description of Level 3 assets and liabilities.
[5]	Fair values are determined on a contract basis, but certain contracts result in a current asset and a noncurrent liability, or vice versa, as presented in the condensed consolidated balance sheets.

Fair_Value_Measurements_Schedu1

Fair Value Measurements (Schedule of Fair Value of the Level 3 Assets and Liabilities by Major Contract Type (All Related to Commodity Contracts) and the Significant Unobservable Inputs Used in the Valuations) (Details) (Derivative financial instruments, assets and liabilities [Member], Level 3 [Member], USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2014		Dec. 31, 2013
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Assets	$37,000,000	[1]	$57,000,000	[1]
Liabilities	-8,000,000	[1]	-1,030,000,000	[1]
Derivative Assets (Liabilities), at Fair Value, Net	29,000,000	[1]	-973,000,000	[1]
Electricity purchases and sales [Member] | Valuation Model [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Assets	1,000,000	[1]	2,000,000	[1]
Liabilities	-1,000,000	[1]	-2,000,000	[1]
Derivative Assets (Liabilities), at Fair Value, Net	0	[1]	0	[1]
Electricity spread options [Member] | Option Pricing Model [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Assets	5,000,000	[1]	15,000,000	[1]
Liabilities	0	[1]	-2,000,000	[1]
Derivative Assets (Liabilities), at Fair Value, Net	5,000,000	[1]	13,000,000	[1]
Electricity congestion revenue rights [Member] | Market Approach [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Assets	26,000,000	[1],[2]	35,000,000	[1],[2]
Liabilities	-3,000,000	[1],[2]	-2,000,000	[1],[2]
Derivative Assets (Liabilities), at Fair Value, Net	23,000,000	[1],[2]	33,000,000	[1],[2]
Coal purchases [Member] | Market Approach [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Assets	1,000,000	[1],[2]	0	[1],[2]
Liabilities	-4,000,000	[1],[2]	-11,000,000	[1],[2]
Derivative Assets (Liabilities), at Fair Value, Net	-3,000,000	[1],[2]	-11,000,000	[1],[2]
Interest rate swaps [Member] | Market Approach [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Assets	'		0
Liabilities	'		-1,012,000,000
Derivative Assets (Liabilities), at Fair Value, Net	'		-1,012,000,000
Other [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Assets	4,000,000	[1],[3]	5,000,000	[1],[3]
Liabilities	0	[1],[3]	-1,000,000	[1],[3]
Derivative Assets (Liabilities), at Fair Value, Net	4,000,000	[1],[3]	4,000,000	[1],[3]
Minimum [Member] | Electricity purchases and sales [Member] | Valuation Model [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Illiquid pricing locations (in usd per MWh)	30	[1],[4],[5]	25	[1],[4],[5]
Hourly price curve shape (in usd per MWh)	20	[1],[5],[6]	20	[1],[5],[6]
Minimum [Member] | Electricity spread options [Member] | Option Pricing Model [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Gas to power correlation (as a percent)	40.00%	[1],[5],[7]	45.00%	[1],[5],[7]
Power volatility (as a percent)	10.00%	[1],[5],[8]	10.00%	[1],[5],[8]
Minimum [Member] | Electricity congestion revenue rights [Member] | Market Approach [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Illiquid price differences between settlement points	0	[1],[2],[5],[9]	0	[1],[2],[5],[9]
Minimum [Member] | Coal purchases [Member] | Market Approach [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Probability of default (as a percent)	0.00%	[1],[10],[5]	0.00%	[1],[10],[5]
Recovery rate (as a percent)	0.00%	[1],[11],[5]	0.00%	[1],[11],[5]
Fair Value Inputs, Illiquid Pricing Variances Between Heat Content	0.3	[12]	'
Illiquid price variances between mines	0	[1],[13],[2],[5]	0	[1],[13],[2],[5]
Minimum [Member] | Interest rate swaps [Member] | Valuation Model [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Fair Value Inputs, Nonperformance Risk Adjustment	0.00%	[1],[5]	25.00%	[1],[5]
Maximum [Member] | Electricity purchases and sales [Member] | Valuation Model [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Illiquid pricing locations (in usd per MWh)	50	[1],[4],[5]	45	[1],[4],[5]
Hourly price curve shape (in usd per MWh)	70	[1],[5],[6]	70	[1],[5],[6]
Maximum [Member] | Electricity spread options [Member] | Option Pricing Model [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Gas to power correlation (as a percent)	90.00%	[1],[5],[7]	95.00%	[1],[5],[7]
Power volatility (as a percent)	40.00%	[1],[5],[8]	30.00%	[1],[5],[8]
Maximum [Member] | Electricity congestion revenue rights [Member] | Market Approach [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Illiquid price differences between settlement points	13	[1],[2],[5],[9]	25	[1],[2],[5],[9]
Maximum [Member] | Coal purchases [Member] | Market Approach [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Probability of default (as a percent)	0.00%	[1],[10],[5]	40.00%	[1],[10],[5]
Recovery rate (as a percent)	0.00%	[1],[11],[5]	40.00%	[1],[11],[5]
Fair Value Inputs, Illiquid Pricing Variances Between Heat Content	0.4	[12]	'
Illiquid price variances between mines	$1	[1],[13],[2],[5]	$1	[1],[13],[2],[5]
Maximum [Member] | Interest rate swaps [Member] | Valuation Model [Member]	'		'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'		'
Fair Value Inputs, Nonperformance Risk Adjustment	0.00%	[1],[5]	35.00%	[1],[5]
[1]	Electricity purchase and sales contracts include hedging positions in the ERCOT West, North and Houston regions, as well as power contracts, the valuations of which include unobservable inputs related to the hourly shaping of the price curve. Electricity spread option contracts consist of physical electricity call options. Electricity congestion revenue rights contracts consist of forward purchase contracts (swaps and options) used to hedge electricity price differences between settlement points within ERCOT. Coal purchase contracts relate to western (Powder River Basin) coal. TCEH used interest rate swaps to hedge exposure to its variable rate debt (see Note 12).
[2]	While we use the market approach, there is either insufficient market data to consider the valuation liquid or the significance of credit reserves or non-performance risk adjustments results in a Level 3 designation.
[3]	Other includes contracts for ancillary services, natural gas, diesel options, coal options and weather dependent power options.
[4]	Based on the historical range of forward average monthly ERCOT Hub and load zone prices.
[5]	The range of the inputs may be influenced by factors such as time of day, delivery period, season and location.
[6]	Based on the historical range of forward average hourly ERCOT North Hub prices.
[7]	Estimate of the historical range based on forward natural gas and on-peak power prices for the ERCOT hubs most relevant to our spread options.
[8]	Based on historical forward price changes.
[9]	Based on the historical price differences between settlement points within the ERCOT Hubs and load zones.
[10]	Estimate of the range of probabilities of default based on past experience and the length of the contract as well as our and counterparties' credit ratings.
[11]	Estimate of the default recovery rate based on historical corporate rates.
[12]	Based on historical ranges of forward average prices between different heat contents
[13]	Based on the historical range of price variances between mine locations.

Fair_Value_Measurements_Schedu2

Fair Value Measurements (Schedule of Changes in Fair Value of the Level 3 Assets and Liabilities (All Related to Commodity Contracts)) (Details) (Level 3 [Member], Commodity contracts [Member], Derivative financial instruments, assets and liabilities [Member], USD $)	3 Months Ended				9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Level 3 [Member] | Commodity contracts [Member] | Derivative financial instruments, assets and liabilities [Member]	'		'		'		'
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'		'		'		'
Net asset (liability) balance at beginning of period	$45		$88		($973)		$29
Total unrealized valuation losses	-3		-24		-97		-41
Purchases, issuances and settlements:	'		'		'		'
Purchases	10	[1]	6	[1]	39	[1]	66	[1]
Issuances	-1	[1]	0	[1]	-3	[1]	-6	[1]
Settlements/terminations	-21	[1]	-62	[1]	1,063	[1]	-45	[1]
Transfers into Level 3	0	[2]	-1,179	[2]	0	[2]	-1,178	[2]
Transfers out of Level 3	-1	[2]	0	[2]	0	[2]	4	[2]
Net change	-16	[3]	-1,259	[3]	1,002	[3]	-1,200	[3]
Net asset (liability) balance at end of period	29		-1,171		29		-1,171
Unrealized valuation gains relating to instruments held at end of period	$0		$254		$2		$280
[1]	Settlement amounts in 2014 reflect termination of TCEH interest rate swaps and include the nonperformance risk adjustment as discussed in Note 12. Settlements for all periods presented reflect reversals of unrealized mark-to-market valuations previously recognized in net income. Purchases and issuances reflect option premiums paid or received.
[2]	Includes transfers due to changes in the observability of significant inputs. Transfers in and out occur at the end of each quarter, which is when the assessments are performed. All Level 3 transfers in the periods presented are in and out of Level 2. Transfers into Level 3 during 2013 reflect a nonperformance risk adjustment in the valuation of the TCEH interest rate swaps, which were secured by a first-lien interest in the same assets of TCEH (on a pari passu basis) with the TCEH Senior Secured Facilities and the TCEH Senior Secured Notes (see Note 7). The amount of the nonperformance risk adjustment was calculated after consideration of derivative assets related to contracts with the same counterparties that are also secured by a first-lien interest in the assets of TCEH, and a master netting agreement in place that provides for netting and setoff of amounts related to these contracts.
[3]	Substantially all changes in values of commodity contracts are reported in the condensed statements of consolidated income (loss) in net gain (loss) from commodity hedging and trading activities. Changes in values of interest rate swaps transferred into Level 3 in third quarter 2013 are reported in the condensed statements of consolidated income (loss) in interest expense and related charges (see Note 12). Activity excludes changes in fair value in the month the positions settled as well as amounts related to positions entered into and settled in the same month.

Commodity_And_Other_Derivative2

Commodity And Other Derivative Contractual Assets And Liabilities (Financial Statement Effects of Derivatives) (Details) (USD $)

3 Months Ended

5 Months Ended

9 Months Ended

1 Months Ended

9 Months Ended

In Millions, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

2-May-14

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

31-May-14

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Current assets [Member]

Current assets [Member]

Noncurrent assets [Member]

Noncurrent assets [Member]

Current liabilities [Member]

Current liabilities [Member]

Noncurrent Liabilities [Member]

Commodity contracts [Member]

Commodity contracts [Member]

Commodity contracts [Member]

Commodity contracts [Member]

Commodity contracts [Member]

Commodity contracts [Member]

Commodity contracts [Member]

Commodity contracts [Member]

Commodity contracts [Member]

Commodity contracts [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Current assets [Member]

Current assets [Member]

Noncurrent assets [Member]

Noncurrent assets [Member]

Current liabilities [Member]

Current liabilities [Member]

Noncurrent Liabilities [Member]

Current assets [Member]

Current assets [Member]

Noncurrent assets [Member]

Noncurrent assets [Member]

Current liabilities [Member]

Current liabilities [Member]

Noncurrent Liabilities [Member]

Commodity contracts [Member]

Interest rate swaps [Member]

Derivatives, Fair Value [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Asset, Fair Value, Portion Of Positions Terminated By Counterparties

'

'

'

'

'

'

'

'

'

'

'

'

'

'

70.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net Settlement Liability, Positions Terminated By Counterparties

'

'

'

'

'

$1,108

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Liability adjustment arising from termination of interest rate swaps (Note 12)

0

'

277

277

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative asset, Fair Value, Gross Asset

'

'

'

'

'

'

788

'

'

'

'

'

'

'

'

141

788

131

784

9

4

'

'

'

'

0

0

0

0

0

'

'

'

'

'

Derivative liabilities, Fair Value, Gross Asset

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

1

0

'

'

'

'

'

0

0

0

0

'

'

'

'

'

Derivative Assets And Liability, Fair Value, Gross Assets

'

'

'

'

'

'

'

131

784

10

4

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative asset, Fair Value, Gross Liability

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

0

'

'

'

'

'

'

0

0

0

'

'

Derivative liabilities, Fair Value, Gross Liability

'

'

'

'

'

'

-1,275

'

'

'

'

'

'

'

'

-116

-263

'

'

'

'

-112

-263

-4

'

-1,012

'

'

'

'

0

-1,012

0

'

'

Derivative Assets And Liability, Fair Value, Gross Liability

'

'

'

'

'

'

'

'

'

'

'

-112

-1,275

-4

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative asset, Fair Value, Net

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

140

788

'

'

'

'

'

'

'

0

0

'

'

'

'

'

'

'

'

'

Derivative liabilities, Fair Value, Net

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-115

-263

'

'

'

'

'

'

'

0

-1,012

'

'

'

'

'

'

'

'

'

Derivative, Fair Value, Net

25

'

25

25

'

'

-487

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Liability, Fair Value, Noncurrent Classified As Current Due To Event Of Default

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

647

'

'

'

'

'

'

'

'

'

Realized Gain (Loss) On Terminated Interest Rate Derivatives

0

[1]

0

[1]

'

-1,225

[1]

0

[1]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,225

Realized Gain (Loss) On Terminated Commodity Related Derivatives

'

'

'

117

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

117

'

Net Liability, Accounts Payable Related To Matured Interest Rate Swaps Secured By First-Lien Secured Interest

127

'

127

127

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Liabilities Subject To Compromise, Liability Under Terminated Agreements, Net

$1,235

'

$1,235

$1,235

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

See Note 12.

Commodity_And_Other_Derivative3

Commodity And Other Derivative Contractual Assets And Liabilities (Derivative (Income Statement Presentation) and Derivative type (Income Statement Presentation of Loss Reclassified from Accumulated OCI into Income)) (Details) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

In Millions, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Interest rate swaps [Member]

Interest rate swaps [Member]

Net gain (loss) from commodity hedging and trading activities [Member]

Net gain (loss) from commodity hedging and trading activities [Member]

Net gain (loss) from commodity hedging and trading activities [Member]

Net gain (loss) from commodity hedging and trading activities [Member]

Interest expense and related charges [Member]

Interest expense and related charges [Member]

Interest expense and related charges [Member]

Interest expense and related charges [Member]

Reorganization Items [Member]

Reorganization Items [Member]

Reorganization Items [Member]

Reorganization Items [Member]

Commodity contracts [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Interest rate swaps [Member]

Derivative Instruments, Gain (Loss) [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net gain (loss)

$54

$351

($519)

$487

'

'

$54

[1]

$98

[1]

($114)

[1]

$54

[1]

$433

[2]

$0

[2]

$253

[2]

($128)

[2]

$0

$0

($277)

$0

Income statement presentation of loss reclassified from accumulated OCI into income

0

-2

1

-6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax

'

'

'

'

-35

-36

'

'

'

'

'

'

'

'

'

'

'

'

Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net

'

'

'

'

($2)

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

Amount represents changes in fair value of positions in the derivative portfolio during the period, as realized amounts related to positions settled are assumed to equal reversals of previously recorded unrealized amounts.

[2]

Includes unrealized mark-to-market net gain (loss) as well as the net realized effect on interest paid/accrued, both reported in "Interest Expense and Related Charges" (see Note 8).

Commodity_And_Other_Derivative4

Commodity And Other Derivative Contractual Assets And Liabilities (Derivative Assets and Liabilities From Balance Sheet to Net Amounts After Consideration Netting Arrangements with Counterparties and Financial Collateral) (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Derivatives, Fair Value [Line Items]	'		'
Derivative assets: Amounts Presented in Balance Sheet	'		$788
Derivative assets: Offsetting Financial Instruments	'		-389	[1]
Derivative assets: Financial Collateral (Received) Pledged	'		-299	[2]
Derivative assets: Net Amounts	'		100
Derivative liabilities: Amounts Presented in Balance Sheet	'		-1,275
Derivative liabilities: Offsetting Financial Instruments	'		389	[1]
Derivative liabilities: Financial Collateral (Received) Pledged	'		70	[2]
Derivative liabilities: Net Amounts	'		-816
Derivative, Fair Value, Net	25		-487
Derivative Asset (Liabilit), Collateral, Obligation to Return Cash	0		0
Derivative (Assets) Liability, Fair Value of Collateral, Net	-17	[2]	229	[2]
Derivative Assets (Liability), Fair Value, Amount Offset Against Collateral	42		-716
Commodity contracts [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative assets: Amounts Presented in Balance Sheet	141		788
Derivative assets: Offsetting Financial Instruments	-91	[1]	-389	[1]
Derivative assets: Financial Collateral (Received) Pledged	0	[2]	-299	[2]
Derivative assets: Net Amounts	50		100
Derivative liabilities: Amounts Presented in Balance Sheet	-116		-263
Derivative liabilities: Offsetting Financial Instruments	91	[1]	168	[1]
Derivative liabilities: Financial Collateral (Received) Pledged	17	[2]	70	[2]
Derivative liabilities: Net Amounts	-8		-25
Interest rate swaps [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	35		36
Derivative assets: Amounts Presented in Balance Sheet	'		0
Derivative assets: Offsetting Financial Instruments	'		0	[1]
Derivative assets: Financial Collateral (Received) Pledged	'		0	[2]
Derivative assets: Net Amounts	'		0
Derivative liabilities: Amounts Presented in Balance Sheet	'		-1,012
Derivative liabilities: Offsetting Financial Instruments	'		221	[1]
Derivative liabilities: Financial Collateral (Received) Pledged	'		0	[2]
Derivative liabilities: Net Amounts	'		($791)
[1]	Offsetting instruments at December 31, 2013 with respect to commodity contracts include amounts related to interest rate swaps and vice versa. All amounts presented exclude trade accounts receivable and payable related to settled financial instruments.
[2]	Financial collateral consists entirely of cash margin deposits.

Commodity_And_Other_Derivative5

Commodity And Other Derivative Contractual Assets And Liabilities (Derivative Volumes) (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Interest rate swaps - Floating/fixed [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	$0	[1]	$30,790	[1]
Interest rate swaps - Basis [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative, Notional Amount	$0		$1,050
Natural Gas Derivative [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Nonmonetary Notional Volume	1,178,000,000	[2]	2,150,000,000	[2]
Electricity (in GWh) [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Nonmonetary Notional Volume	18,580		16,482
Congestion Revenue RIghts (in GWh) [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Nonmonetary Notional Volume	74,257	[3]	77,799	[3]
Coal (in tons) [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Nonmonetary Notional Volume	11,000,000		9,000,000
Fuel oil (in gallons) [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Nonmonetary Notional Volume	14,000,000		26,000,000
Uranium (in pounds) [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Nonmonetary Notional Volume	300,000		450,000
[1]	Amounts at December 31, 2013 include notional amount of interest rate swaps that had maturity dates through October 2014 as well as notional amount of swaps effective from October 2014 that had maturity dates through October 2017.
[2]	Represents gross notional forward sales, purchases and options transactions, locational basis swaps and other natural gas transactions.
[3]	Represents gross forward purchases associated with instruments used to hedge electricity price differences between settlement points within ERCOT.

Commodity_And_Other_Derivative6

Commodity And Other Derivative Contractual Assets And Liabilities (Credit Risk-Related Contingent Features of Derivatives) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Credit Derivatives [Line Items]	'	'
Derivative, Net Liability Position, Aggregate Fair Value	$5	$1,027
Credit risk derivative with contingent feature [Member]	'	'
Credit Derivatives [Line Items]	'	'
Liquidity exposure associated with liabilities reduced by cash and letter of credit postings with the counterparties	0	3
Derivative, Net Liability Position, Aggregate Fair Value	4	4
Cross-default credit derivative [Member]	'	'
Credit Derivatives [Line Items]	'	'
Liquidity exposure associated with liabilities reduced by cash and letter of credit postings with the counterparties	'	6
Assets Needed for Immediate Settlement, Aggregate Fair Value	0	1,140
Derivative, Net Liability Position, Aggregate Fair Value	$1	$1,023

Commodity_And_Other_Derivative7

Commodity And Other Derivative Contractual Assets And Liabilities (Concentrations of Credit Risk Related to Derivatives) (Details) (Texas Competitive Electric Holdings Company LLC [Member], Credit Risk Contract [Member], USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014
Texas Competitive Electric Holdings Company LLC [Member] | Credit Risk Contract [Member]	'
Derivative [Line Items]	'
Total credit risk exposure to all counterparties related to derivative contracts	$243
Net exposure to those counterparties after taking into effect master netting arrangements, setoff provisions and collateral	139
Credit risk exposure to banking and financial sector percentage	59.00%
Net exposure to banking and financial sector percentage	41.00%
Largest net Exposure to single counterparty	$44

RelatedParty_Transactions_Rela

Related-Party Transactions Related Party Transactions (Narrative) (Details) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

1 Months Ended

3 Months Ended

9 Months Ended

12 Months Ended

3 Months Ended

9 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

1 Months Ended

3 Months Ended

9 Months Ended

In Millions, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Apr. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Jan. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Dec. 31, 2013

Feb. 28, 2014

Feb. 28, 2014

Feb. 28, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sponsor Group [Member]

Sponsor Group [Member]

Sponsor Group [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Senior Notes [Member]

Senior Notes [Member]

11.75% Senior Secured Second Lien Notes due March 1, 2022 [Member]

Amounts paid relating equipment accounted for as intangible assets [Member]

Amounts paid relating equipment accounted for as intangible assets [Member]

Amounts paid relating equipment accounted for as intangible assets [Member]

Amounts paid relating equipment accounted for as intangible assets [Member]

Decommisioning liablity [Member]

Decommisioning liablity [Member]

Related Party Transactions, Income Tax Payments [Member]

Related Party Transactions, Income Tax Payments [Member]

Collateral posted [Member]

Debt held by related party [Member]

Debt held by related party [Member]

Debt held by related party [Member]

Debt held by related party [Member]

Debt held by related party [Member]

Debt held by related party [Member]

Pension Plan, Defined Benefit [Member]

Pension Plan, Defined Benefit [Member]

Oncor [Member]

Technology Equipment [Member]

Internal Revenue Service (IRS) [Member]

Minimum [Member]

Oncor [Member]

Oncor [Member]

Oncor [Member]

Oncor [Member]

Oncor [Member]

Affiliated Entity [Member]

Affiliated Entity [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Senior Secured Debt [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Energy Future Intermediate Holding CO LLC [Member]

Energy Future Intermediate Holding CO LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Senior Notes [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Pension Plan, Defined Benefit [Member]

Settled Litigation [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Amounts in Escrow Related to August 2012 Debt Issuances [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Oncor [Member]

Oncor [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Oncor [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Majority-Owned Subsidiary, Unconsolidated [Member]

Oncor [Member]

Energy Future Intermediate Holding CO LLC [Member]

Energy Future Holdings Corp. [Member]

Rating-Agencies-Downgrades

Related Party Transaction [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term Debt Held by Affiliates

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$382

$382

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Related party transaction, amounts of transaction

'

'

'

'

'

'

'

'

'

'

'

'

'

281

273

746

728

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due to Affiliate

'

'

'

'

'

'

'

'

'

'

'

'

'

152

'

152

'

135

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Restricted cash

0

0

'

945

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

680

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Related Party Transactions, Note Payable, Average Daily Balance Between Affiliated Entities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

77

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Description of variable rate basis

'LIBOR

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

LIBOR rate (as a percent)

'

'

'

'

'

'

'

'

'

'

5.00%

'

'

'

'

'

'

'

5.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest expense, related party

'

'

'

'

'

'

'

'

'

1

2

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

10

13

29

'

'

'

'

'

'

'

'

Related Party Transaction, Interest Income

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Intercompany payables

'

'

'

'

'

'

'

'

107

'

107

'

103

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

382

284

'

'

'

'

'

'

Defined Benefit Plan Contributions By Employer Excluding Affiliated Supplemental Plan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

84

'

'

'

'

'

Defined Benefit Plan, Contributions by Employer

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20

64

'

'

'

Due from Affiliates

17

17

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Advance to parent (Note 13)

8

8

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Advance to parent (Note 13)

9

9

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Selling, general and administrative expenses from transactions with related party

'

'

'

'

10

10

29

'

'

'

'

'

'

'

'

'

'

'

'

'

47

59

147

176

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayments of Related Party Debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

3

6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Related Party Transaction, Sale of Assets To Related Party

'

'

'

'

'

'

'

24

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from Sale of Productive Assets

'

2

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7

'

'

Delivery fee surcharge remitted to related party

'

'

'

'

'

'

'

'

'

'

'

'

'

5

5

13

12

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due to Affiliate, Noncurrent

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

451

400

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Related Party Tax Expense, Due to Affiliates, Current

'

'

'

'

'

'

'

'

17

'

'

'

21

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Taxes Payable

535

535

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Affiliate Tax Sharing Liability, Noncurrent

0

0

'

535

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Related Party Transaction, Expenses from Transactions with Related Party

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

33

134

'

'

'

'

'

'

'

'

'

'

'

'

'

Litigation Settlement, Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

84

'

Letter of credit posted as collateral

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9

'

'

'

'

'

'

'

'

'

'

'

'

Event of credit rating downgrade, letter of credit required to be posted to secure payment obligations

'

'

'

'

'

'

'

'

'

'

'

'

'

$170

'

$170

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Event of credit rating downgrade, minimum number of rating agencies downgrade below investment grade (in credit agencies downgrades)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2

RelatedParty_Transactions_Ener

Related-Party Transactions (Energy Future Competitive Holdings CO Related Party Information) (Details) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

In Millions, unless otherwise specified

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Texas Competitive Electric Holdings Company LLC [Member]

Debt held by related party [Member]

Debt held by related party [Member]

Debt held by related party [Member]

Oncor [Member]

Oncor [Member]

Oncor [Member]

Oncor [Member]

Energy Future Holdings Corp. [Member]

Energy Future Holdings Corp. [Member]

Energy Future Intermediate Holding CO LLC [Member]

Senior Notes [Member]

Term loan Facilities [Member]

Senior Notes [Member]

Debt held by related party [Member]

Debt held by related party [Member]

Debt held by related party [Member]

Related Party Transaction [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Contractual Interest Expense On Pre-Petition Liabilities Classified As Liabilities Subject To Compromise

'

'

$9

$16

'

'

'

'

'

'

'

'

Delivery fee surcharge remitted to related party

'

'

'

'

'

5

5

13

12

'

'

'

Intercompany payables

$107

$103

'

'

$382

'

'

'

'

$284

$19

$79

Supplementary_Financial_Inform2

Supplementary Financial Information Supplementary Financial Information (Other Income and Deductions) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Other Income and Expenses [Abstract]	'	'	'	'
Insurance/litigation settlements	$0	$0	$0	$2
Gain on sale of land	2	0	2	0
All other	3	1	9	5
Total other income	5	1	11	7
Write-off of deferred costs related to mining projects	9	0	30	0
Other asset impairments	0	3	0	3
All other	5	5	8	9
Total other deductions	$14	$8	$38	$12

Supplementary_Financial_Inform3

Supplementary Financial Information Supplementary Financial Information - (Restricted Cash) (Details) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Restricted cash	$0	$945
Restricted cash	751	0
Texas Competitive Electric Holdings Company LLC [Member] | Amount Related To Texas Competitive Electric Company LLC Debtor-In-Possession Facility [Member]	'	'
Restricted cash	0	0
Restricted cash	184	0
Texas Competitive Electric Holdings Company LLC [Member] | Amount Related To Texas Competitive Electric Holdings Company LLC Letter Of Credit Facility [Member]	'	'
Restricted cash	0	945
Restricted cash	$567	$0

Supplementary_Financial_Inform4

Supplementary Financial Information Supplementary Financial Information (Trade Accounts Receivable and Allowance for Uncollectible Accounts Receivable) (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Trade Accounts Receivable [Abstract]	'	'	'
Wholesale and retail trade accounts receivable	$940	'	$724
Allowance for uncollectible accounts	17	17	'
Trade accounts receivable — net	923	'	710
Unbilled Receivables, Current	261	'	272
Allowance for Doubtful Accounts Receivable [Roll Forward]	'	'	'
Allowance for uncollectible accounts receivable at beginning of period	14	9	'
Increase for bad debt expense	30	23	'
Decrease for account write-offs	-27	-15	'
Allowance for uncollectible accounts receivable at end of period	$17	$17	'

Supplementary_Financial_Inform5

Supplementary Financial Information (Inventories by Major Category and Other Investments) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Inventories by Major Category	'	'
Materials and supplies	$214	$216
Fuel stock	125	154
Natural gas in storage	31	29
Total inventories	370	399
Other Investments	'	'
Nuclear plant decommissioning trust	859	791
Assets related to employee benefit plans, including employee savings programs, net of distributions	1	1
Land	37	37
Miscellaneous other	7	9
Total investments	$904	$838

Supplementary_Financial_Inform6

Supplementary Financial Information (Nuclear Decommissioning Trust) (Details) (USD $)

3 Months Ended

9 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Debt securities [Member]

Debt securities [Member]

Equity securities [Member]

Equity securities [Member]

Schedule of Schedule of Decommissioning Fund Investments [Line Items]

'

'

'

'

'

'

'

'

'

Cost

$546

[1]

'

$546

[1]

'

$521

[1]

$266

[1],[2]

$282

[1],[2]

$264

[1],[3]

$255

[1],[3]

Unrealized gain

317

'

317

'

279

8

[2]

12

[2]

305

[3]

271

[3]

Unrealized loss

-4

'

-4

'

-9

-4

[2]

0

[2]

-4

[3]

-5

[3]

Fair market value

859

'

859

'

791

270

[2]

294

[2]

565

[3]

521

[3]

Debt securities, average coupon rate (as a percent)

'

'

'

'

'

3.96%

4.09%

'

'

Decommissioning Fund Investments, Debt securities, average maturity

'

'

'

'

'

'6 years

'

'

'

Decommissioning Fund Investments, debt maturities, one through five years, fair value

'

'

'

'

'

'

102

'

'

Decommissioning Fund Investments, debt maturities, five through ten years, fair value

'

'

'

'

'

'

57

'

'

Decommissioning Fund Investments, debt maturities, after ten years, fair value

'

'

'

'

'

'

135

'

'

Realized gains

1

1

2

2

'

'

'

'

'

Realized losses

0

-3

-1

-3

'

'

'

'

'

Proceeds from sales of securities

165

23

250

128

'

'

'

'

'

Investments in securities

($170)

($28)

($263)

($140)

'

'

'

'

'

[1]

Includes realized gains and losses on securities sold.

[2]

The investment objective for debt securities is to invest in a diversified tax efficient portfolio with an overall portfolio rating of AA or above as graded by S&P or Aa2 by Moody's Investors Services, Inc. The debt securities are heavily weighted with municipal bonds. The debt securities had an average coupon rate of 4.09% and 3.96% at September 30, 2014 and December 31, 2013, respectively, and an average maturity of 6 years at both September 30, 2014 and December 31, 2013.

[3]

The investment objective for equity securities is to invest tax efficiently and to match the performance of the S&P 500 Index.

Supplementary_Financial_Inform7

Supplementary Financial Information (Property, Plant and Equipment) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Supplementary Financial Information [Abstract]	'	'
Property, plant and equipment — net (Note 14)	$16,943,000,000	$17,649,000,000
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$9,000,000,000	$8,100,000,000

Supplementary_Financial_Inform8

Supplementary Financial Information (Asset Retirement and Mining Reclamation Obligations) (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]	'	'
Beginning balance, Liability	$524	'
Additions:	'	'
Accretion	36	'
Reductions:	'	'
Payments	-62	'
Adjustment to estimate of reclamation costs	-2	'
Ending balance, Liability	496	'
Less amounts due currently	-33	'
Noncurrent liability at September 30, 2014	463	440
Nuclear Plant Decommissioning [Member]	'	'
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]	'	'
Beginning balance, Liability	390	'
Additions:	'	'
Accretion	17	'
Reductions:	'	'
Payments	0	'
Adjustment to estimate of reclamation costs	0	'
Ending balance, Liability	407	'
Less amounts due currently	0	'
Noncurrent liability at September 30, 2014	407	'
Mining Land Reclamation [Member]	'	'
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]	'	'
Beginning balance, Liability	98	'
Additions:	'	'
Accretion	17	'
Reductions:	'	'
Payments	-60	'
Adjustment to estimate of reclamation costs	-2	'
Ending balance, Liability	53	'
Less amounts due currently	-33	'
Noncurrent liability at September 30, 2014	20	'
Other	'	'
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]	'	'
Beginning balance, Liability	36	'
Additions:	'	'
Accretion	2	'
Reductions:	'	'
Payments	-2	'
Adjustment to estimate of reclamation costs	0	'
Ending balance, Liability	36	'
Less amounts due currently	0	'
Noncurrent liability at September 30, 2014	$36	'

Supplementary_Financial_Inform9

Supplementary Financial Information (Other Noncurrent Liabilities and Deferred Credits) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]	'	'	'	'	'
Uncertain tax positions, including accrued interest	$175	'	$175	'	$204
Asset retirement and mining reclamation obligations	463	'	463	'	440
Unfavorable purchase and sales contracts	572	'	572	'	589
Nuclear decommissioning cost over-recovery (Note 13)	451	'	451	'	400
Other, including retirement and other employee benefits	19	'	19	'	21
Total other noncurrent liabilities and deferred credits	1,680	'	1,680	'	1,654
Income Tax Expense (Benefit)	-21	-17	-574	-476	'
Amortization of Deferred Charges	'	'	'	'	'
Amortization of Unfavorable Purchase and Sales Contracts	6	6	17	19	'
Future Amortization Expense	'	'	'	'	'
2014	'	'	23	'	'
2015	'	'	24	'	'
2016	'	'	24	'	'
2017	'	'	24	'	'
2018	'	'	24	'	'
Internal Revenue Service (IRS) [Member] | Tax Year 1997 [Member]	'	'	'	'	'
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]	'	'	'	'	'
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	31	'	'	'	'
Income Tax Examination, Reclassification To Accumulated Deferred Income Tax Liability	16	'	'	'	'
Income Tax Expense (Benefit)	$15	'	'	'	'

Recovered_Sheet1

Supplementary Financial Information Supplementary Financial Information - (Fair Value) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Debtor-In-Possession Facility [Member] | Reported Value Measurement [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Debt Instrument, Fair Value Disclosure	$1,425	$0
Pre-Petition Notes, Loans And Other Debt (Reported As Liabilities Subject To Compromise) [Member] | Reported Value Measurement [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Debt Instrument, Fair Value Disclosure	31,896	0
Long-Term Debt, Including Amounts Due Currently [Member] | Reported Value Measurement [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Debt Instrument, Fair Value Disclosure	81	0
Pre-Petition Notes, Loans And Other Debt (Excluding Capital Leases) [Member] | Reported Value Measurement [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Debt Instrument, Fair Value Disclosure	0	32,184
Level 2 [Member] | Debtor-In-Possession Facility [Member] | Fair Value [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Debt Instrument, Fair Value Disclosure	1,429	0
Level 2 [Member] | Pre-Petition Notes, Loans And Other Debt (Reported As Liabilities Subject To Compromise) [Member] | Fair Value [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Debt Instrument, Fair Value Disclosure	19,345	0
Level 2 [Member] | Long-Term Debt, Including Amounts Due Currently [Member] | Fair Value [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Debt Instrument, Fair Value Disclosure	91	0
Level 2 [Member] | Pre-Petition Notes, Loans And Other Debt (Excluding Capital Leases) [Member] | Fair Value [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Debt Instrument, Fair Value Disclosure	$0	$17,985

Recovered_Sheet2

Supplementary Financial Information (Supplemental Cash Flow Information) (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014	Dec. 31, 2013	Mar. 31, 2013
					Energy Future Holdings Corp. [Member]	Energy Future Holdings Corp. [Member]	Energy Future Holdings Corp. [Member]
					Push Down Debt [Member]	Push Down Debt [Member]	Push Down Debt [Member]
Cash payments related to:	'		'		'	'	'
Interest paid (a)	$938	[1]	$1,901	[1]	'	'	'
Capitalized interest	-14		-19		'	'	'
Interest paid (net of capitalized interest) (a)	924	[1]	1,882	[1]	'	'	'
Reorganization items (b)	41	[2]	0	[2]	'	'	'
Income taxes	33		134		'	'	'
Noncash investing and financing activities:	'		'		'	'	'
Effect of Parent's payment of interest on pushed down debt	0		21		'	'	'
Construction expenditures (c)	73	[3]	62	[3]	'	'	'
Contribution related to parent stock based compensation	2		1		'	'	'
Debt assumed related to acquisition of combustion turbine trust interest	0		-45		'	'	'
Reduction of debt pushed down from EFH Corp. (d)	0		-420	[4]	'	'	'
Debt extension transactions (e)	0	[5]	-340	[5]	'	'	'
Principal Amount Of Affiliate Debt Given In Exchange Transaction	'		$838		'	'	'
Debt Instrument, Percentage of principal plus unamortized premium of Parent Merger-related debt guaranteed by subsidiary	'		'		50.00%	50.00%	50.00%
[1]	Net of amounts received under interest rate swap agreements.
[2]	Represents cash payments for legal and other consulting services.
[3]	Represents end-of-period accruals.
[4]	For the nine months ended September 30, 2013, represents $838 million principal amount of EFH Corp. debt exchanged (at 50%) for EFIH debt.
[5]	Principal amounts of incremental loans under the TCEH Term Loan Facilities issued in consideration for the extension of the maturity date of such facilities.

Supplemental_Guarantor_Condens2

Supplemental Guarantor Condensed Financial Information (Narrative) (Details) (Energy Future Holdings Senior Notes [Member], Push Down Debt [Member], USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Energy Future Holdings Senior Notes [Member] | Push Down Debt [Member]	'
Condensed Financial Statements, Captions [Line Items]	'
Debt and Capital Lease Obligations	$30

Supplemental_Guarantor_Condens3

Supplemental Guarantor Condensed Financial Information (Condensed Consolidating Statements of Income (Loss)) (Details) (USD $)	3 Months Ended		5 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2013
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'
Operating revenues	$1,807	$1,893	'	$4,731	$4,572
Fuel, purchased power costs and delivery fees	-868	-852	'	-2,256	-2,175
Net gain from commodity hedging and trading activities	75	58	'	-118	29
Operating costs	-204	-189	'	-660	-685
Depreciation and amortization	-327	-331	'	-983	-1,012
Selling, general and administrative expenses	-145	-175	'	-473	-502
Franchise and revenue-based taxes	-18	-18	'	-54	-51
Other income	5	1	'	11	7
Other deductions	-14	-8	'	-38	-12
Interest income	0	1	'	0	5
Interest expense and related charges	-325	-340	'	-1,434	-1,338
Reorganization items	-45	0	-468	-468	0
Income (loss) before income taxes	-59	40	'	-1,742	-1,162
Income tax (expense) benefit	21	17	'	574	476
Equity earnings of subsidiaries	0	0	'	0	0
Net income (loss)	-38	57	'	-1,168	-686
Other comprehensive income	0	1	'	1	5
Comprehensive income (loss)	-38	58	'	-1,167	-681
Parent/ Guarantor [Member]	'	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'
Operating revenues	0	0	'	0	0
Fuel, purchased power costs and delivery fees	0	0	'	0	0
Net gain from commodity hedging and trading activities	0	0	'	0	0
Operating costs	0	0	'	0	0
Depreciation and amortization	0	0	'	0	0
Selling, general and administrative expenses	0	0	'	0	0
Franchise and revenue-based taxes	0	0	'	0	0
Other income	0	0	'	0	0
Other deductions	0	0	'	0	0
Interest income	0	0	'	1	1
Interest expense and related charges	-2	-4	'	-9	-15
Reorganization items	0	'	'	0	'
Income (loss) before income taxes	-2	-4	'	-8	-14
Income tax (expense) benefit	1	1	'	2	7
Equity earnings of subsidiaries	-37	60	'	-1,162	-679
Net income (loss)	-38	57	'	-1,168	-686
Other comprehensive income	0	1	'	1	5
Comprehensive income (loss)	-38	58	'	-1,167	-681
Issuer [Member]	'	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'
Operating revenues	0	0	'	0	0
Fuel, purchased power costs and delivery fees	0	0	'	0	0
Net gain from commodity hedging and trading activities	0	20	'	-90	-3
Operating costs	0	0	'	0	0
Depreciation and amortization	0	0	'	0	0
Selling, general and administrative expenses	0	-14	'	-29	-49
Franchise and revenue-based taxes	0	0	'	0	0
Other income	0	0	'	0	0
Other deductions	0	0	'	0	0
Interest income	0	62	'	80	182
Interest expense and related charges	-331	-541	'	-1,705	-1,920
Reorganization items	-45	'	'	-468	'
Income (loss) before income taxes	-376	-473	'	-2,212	-1,790
Income tax (expense) benefit	114	165	'	729	630
Equity earnings of subsidiaries	225	368	'	321	481
Net income (loss)	-37	60	'	-1,162	-679
Other comprehensive income	0	1	'	1	5
Comprehensive income (loss)	-37	61	'	-1,161	-674
Other Guarantors [Member]	'	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'
Operating revenues	1,807	1,893	'	4,731	4,572
Fuel, purchased power costs and delivery fees	-868	-852	'	-2,256	-2,175
Net gain from commodity hedging and trading activities	75	38	'	-28	32
Operating costs	-204	-192	'	-660	-690
Depreciation and amortization	-327	-332	'	-983	-1,011
Selling, general and administrative expenses	-145	-173	'	-442	-481
Franchise and revenue-based taxes	-18	-18	'	-54	-51
Other income	5	1	'	9	7
Other deductions	-14	-8	'	-38	-12
Interest income	7	206	'	270	591
Interest expense and related charges	1	-619	'	-803	-1,842
Reorganization items	0	'	'	0	'
Income (loss) before income taxes	319	-56	'	-254	-1,060
Income tax (expense) benefit	-99	46	'	84	420
Equity earnings of subsidiaries	0	1	'	0	1
Net income (loss)	220	-9	'	-170	-639
Other comprehensive income	0	0	'	0	0
Comprehensive income (loss)	220	-9	'	-170	-639
Non-guarantors [Member]	'	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'
Operating revenues	0	27	'	0	59
Fuel, purchased power costs and delivery fees	0	0	'	0	0
Net gain from commodity hedging and trading activities	0	0	'	0	0
Operating costs	0	0	'	0	0
Depreciation and amortization	0	1	'	0	-1
Selling, general and administrative expenses	0	-11	'	-2	-25
Franchise and revenue-based taxes	0	0	'	0	0
Other income	0	0	'	2	0
Other deductions	0	0	'	0	0
Interest income	0	0	'	0	0
Interest expense and related charges	0	-4	'	0	-8
Reorganization items	0	'	'	0	'
Income (loss) before income taxes	0	13	'	0	25
Income tax (expense) benefit	0	-5	'	0	-9
Equity earnings of subsidiaries	0	0	'	0	0
Net income (loss)	0	8	'	0	16
Other comprehensive income	0	0	'	0	0
Comprehensive income (loss)	0	8	'	0	16
Eliminations [Member]	'	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'
Operating revenues	0	-27	'	0	-59
Fuel, purchased power costs and delivery fees	0	0	'	0	0
Net gain from commodity hedging and trading activities	0	0	'	0	0
Operating costs	0	3	'	0	5
Depreciation and amortization	0	0	'	0	0
Selling, general and administrative expenses	0	23	'	0	53
Franchise and revenue-based taxes	0	0	'	0	0
Other income	0	0	'	0	0
Other deductions	0	0	'	0	0
Interest income	-7	-267	'	-351	-769
Interest expense and related charges	7	828	'	1,083	2,447
Reorganization items	0	'	'	0	'
Income (loss) before income taxes	0	560	'	732	1,677
Income tax (expense) benefit	5	-190	'	-241	-572
Equity earnings of subsidiaries	-188	-429	'	841	197
Net income (loss)	-183	-59	'	1,332	1,302
Other comprehensive income	0	-1	'	-1	-5
Comprehensive income (loss)	($183)	($60)	'	$1,331	$1,297

Supplemental_Guarantor_Condens4

Supplemental Guarantor Condensed Financial Information (Condensed Consolidating Statements of Cash Flows) (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Condensed Financial Statements, Captions [Line Items]	'	'
Cash provided by (used in) operating activities	$383	($121)
Cash flows – financing activities:	'	'
Proceeds from TCEH DIP Facility before fees paid (Note 5)	1,425	0
Fees paid for TCEH DIP Facility	-87	0
Notes/advances due to affiliates	0	4
Repayments/repurchases of debt	-224	-94
Net borrowings under accounts receivable securitization program	0	90
Contributions from noncontrolling interests	1	3
Other, net	0	-10
Cash provided by (used in) financing activities	1,115	-7
Cash flows – investing activities:	'	'
Capital expenditures	-254	-353
Nuclear fuel purchases	-76	-59
Settlements of notes due from affiliates	-17	698
Increase in restricted cash related to TCEH DIP Facility	-184	0
Purchase of right to use certain computer-related assets from parent	-3	-6
Proceeds from sales of assets	2	3
Acquisition of combustion turbine trust interest	0	-40
Reduction of restricted cash related to TCEH Letter of Credit Facility	378	'
Proceeds from sales of environmental allowances and credits	3	0
Purchases of environmental allowances and credits	-13	-13
Proceeds from sales of nuclear decommissioning trust fund securities	250	128
Investments in nuclear decommissioning trust fund securities	-263	-140
Other, net	11	-3
Cash provided by (used in) investing activities	-166	215
Net change in cash and cash equivalents	1,332	87
Cash and cash equivalents – beginning balance	746	1,175
Cash and cash equivalents – ending balance	2,078	1,262
Parent/ Guarantor [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Cash provided by (used in) operating activities	-4	-8
Cash flows – financing activities:	'	'
Proceeds from TCEH DIP Facility before fees paid (Note 5)	0	'
Fees paid for TCEH DIP Facility	0	'
Notes/advances due to affiliates	8	11
Repayments/repurchases of debt	-4	-3
Net borrowings under accounts receivable securitization program	'	0
Contributions from noncontrolling interests	0	0
Other, net	'	0
Cash provided by (used in) financing activities	4	8
Cash flows – investing activities:	'	'
Capital expenditures	0	0
Nuclear fuel purchases	0	0
Settlements of notes due from affiliates	0	0
Increase in restricted cash related to TCEH DIP Facility	0	'
Purchase of right to use certain computer-related assets from parent	0	0
Proceeds from sales of assets	0	0
Acquisition of combustion turbine trust interest	'	0
Reduction of restricted cash related to TCEH Letter of Credit Facility	'	'
Proceeds from sales of environmental allowances and credits	0	'
Purchases of environmental allowances and credits	0	0
Proceeds from sales of nuclear decommissioning trust fund securities	0	0
Investments in nuclear decommissioning trust fund securities	0	0
Other, net	0	0
Cash provided by (used in) investing activities	0	0
Net change in cash and cash equivalents	0	0
Cash and cash equivalents – beginning balance	0	0
Cash and cash equivalents – ending balance	0	0
Issuer [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Cash provided by (used in) operating activities	-1,122	-1,764
Cash flows – financing activities:	'	'
Proceeds from TCEH DIP Facility before fees paid (Note 5)	1,425	'
Fees paid for TCEH DIP Facility	-87	'
Notes/advances due to affiliates	1,121	1,913
Repayments/repurchases of debt	-203	-64
Net borrowings under accounts receivable securitization program	'	0
Contributions from noncontrolling interests	0	0
Other, net	'	0
Cash provided by (used in) financing activities	2,256	1,849
Cash flows – investing activities:	'	'
Capital expenditures	0	0
Nuclear fuel purchases	0	0
Settlements of notes due from affiliates	0	0
Increase in restricted cash related to TCEH DIP Facility	-184	'
Purchase of right to use certain computer-related assets from parent	0	0
Proceeds from sales of assets	0	0
Acquisition of combustion turbine trust interest	'	0
Reduction of restricted cash related to TCEH Letter of Credit Facility	378	'
Proceeds from sales of environmental allowances and credits	0	'
Purchases of environmental allowances and credits	0	0
Proceeds from sales of nuclear decommissioning trust fund securities	0	0
Investments in nuclear decommissioning trust fund securities	0	0
Other, net	0	0
Cash provided by (used in) investing activities	194	0
Net change in cash and cash equivalents	1,328	85
Cash and cash equivalents – beginning balance	725	1,115
Cash and cash equivalents – ending balance	2,053	1,200
Other Guarantors [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Cash provided by (used in) operating activities	1,514	1,736
Cash flows – financing activities:	'	'
Proceeds from TCEH DIP Facility before fees paid (Note 5)	0	'
Fees paid for TCEH DIP Facility	0	'
Notes/advances due to affiliates	0	0
Repayments/repurchases of debt	-17	-27
Net borrowings under accounts receivable securitization program	'	0
Contributions from noncontrolling interests	0	0
Other, net	'	0
Cash provided by (used in) financing activities	-17	-27
Cash flows – investing activities:	'	'
Capital expenditures	-254	-349
Nuclear fuel purchases	-76	-59
Settlements of notes due from affiliates	-1,146	-1,222
Increase in restricted cash related to TCEH DIP Facility	0	'
Purchase of right to use certain computer-related assets from parent	-3	-6
Proceeds from sales of assets	2	3
Acquisition of combustion turbine trust interest	'	-40
Reduction of restricted cash related to TCEH Letter of Credit Facility	0	'
Proceeds from sales of environmental allowances and credits	3	'
Purchases of environmental allowances and credits	-13	-13
Proceeds from sales of nuclear decommissioning trust fund securities	250	128
Investments in nuclear decommissioning trust fund securities	-263	-140
Other, net	11	-3
Cash provided by (used in) investing activities	-1,489	-1,701
Net change in cash and cash equivalents	8	8
Cash and cash equivalents – beginning balance	16	15
Cash and cash equivalents – ending balance	24	23
Non-guarantors [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Cash provided by (used in) operating activities	-5	-85
Cash flows – financing activities:	'	'
Proceeds from TCEH DIP Facility before fees paid (Note 5)	0	'
Fees paid for TCEH DIP Facility	0	'
Notes/advances due to affiliates	0	0
Repayments/repurchases of debt	0	0
Net borrowings under accounts receivable securitization program	'	90
Contributions from noncontrolling interests	1	3
Other, net	'	-10
Cash provided by (used in) financing activities	1	83
Cash flows – investing activities:	'	'
Capital expenditures	0	-4
Nuclear fuel purchases	0	0
Settlements of notes due from affiliates	0	0
Increase in restricted cash related to TCEH DIP Facility	0	'
Purchase of right to use certain computer-related assets from parent	0	0
Proceeds from sales of assets	0	0
Acquisition of combustion turbine trust interest	'	0
Reduction of restricted cash related to TCEH Letter of Credit Facility	'	'
Proceeds from sales of environmental allowances and credits	0	'
Purchases of environmental allowances and credits	0	0
Proceeds from sales of nuclear decommissioning trust fund securities	0	0
Investments in nuclear decommissioning trust fund securities	0	0
Other, net	0	0
Cash provided by (used in) investing activities	0	-4
Net change in cash and cash equivalents	-4	-6
Cash and cash equivalents – beginning balance	5	45
Cash and cash equivalents – ending balance	1	39
Eliminations [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Cash provided by (used in) operating activities	0	0
Cash flows – financing activities:	'	'
Proceeds from TCEH DIP Facility before fees paid (Note 5)	0	'
Fees paid for TCEH DIP Facility	0	'
Notes/advances due to affiliates	-1,129	-1,920
Repayments/repurchases of debt	0	0
Net borrowings under accounts receivable securitization program	'	0
Contributions from noncontrolling interests	0	0
Other, net	'	0
Cash provided by (used in) financing activities	-1,129	-1,920
Cash flows – investing activities:	'	'
Capital expenditures	0	0
Nuclear fuel purchases	0	0
Settlements of notes due from affiliates	1,129	1,920
Increase in restricted cash related to TCEH DIP Facility	0	'
Purchase of right to use certain computer-related assets from parent	0	0
Proceeds from sales of assets	0	0
Acquisition of combustion turbine trust interest	'	0
Reduction of restricted cash related to TCEH Letter of Credit Facility	0	'
Proceeds from sales of environmental allowances and credits	0	'
Purchases of environmental allowances and credits	0	0
Proceeds from sales of nuclear decommissioning trust fund securities	0	0
Investments in nuclear decommissioning trust fund securities	0	0
Other, net	0	0
Cash provided by (used in) investing activities	1,129	1,920
Net change in cash and cash equivalents	0	0
Cash and cash equivalents – beginning balance	0	0
Cash and cash equivalents – ending balance	$0	$0

Supplemental_Guarantor_Condens5

Supplemental Guarantor Condensed Financial Information (Condensed Consolidating Balance Sheets) (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Current assets:	'		'	'	'	'
Cash and cash equivalents	$2,078		$746	$1,262	'	$1,175
Restricted cash	0		945	'	'	'
Advances to affiliates	'		0	'	'	'
Advances to parent and affiliates	8		'	'	'	'
Trade accounts receivable – net	923		710	'	'	'
Income taxes receivable	0		0	'	'	'
Accounts receivable from affiliates	8		0	'	'	'
Accounts receivable from affiliates	0		'	'	'	'
Inventories	370		399	'	'	'
Commodity and other derivative contractual assets	131		784	'	'	'
Accumulated deferred income taxes	117		121	'	'	'
Margin deposits related to commodity positions	64		93	'	'	'
Other current assets	54		50	'	'	'
Total current assets	3,745		3,848	'	'	'
Restricted cash	751		0	'	'	'
Investments	904		838	'	'	'
Property, plant and equipment – net	16,943		17,649	'	'	'
Advances to parent and affiliates	9		0	'	'	'
Goodwill	3,952		3,952	'	'	'
Identifiable intangible assets – net	1,616		1,717	'	'	'
Commodity and other derivative contractual assets	10		4	'	'	'
Accumulated deferred income taxes	0		0	'	'	'
Other noncurrent assets	7		790	'	'	'
Total assets	27,937		28,798	'	'	'
Current liabilities:	'		'	'	'	'
Borrowings under credit and other facilities	'		2,054	'	'	'
Notes/advances from affiliates	0		0	'	'	'
Due to Related Parties, Current	0		382	'	'	'
Long-term Debt and Capital Lease Obligations, Excluding Credit Facilities, Current	'		29,800	'	'	'
Trade accounts payable	434		381	'	'	'
Trade accounts and other payables to affiliates	181		164	'	'	'
Notes payable to parent	0		103	'	'	'
Commodity and other derivative contractual liabilities	112		1,275	'	'	'
Margin deposits related to commodity positions	3		302	'	'	'
Accumulated deferred income taxes	0		0	'	'	'
Accrued income taxes payable to parent	17		21	'	'	'
Accrued taxes other than income	86		120	'	'	'
Accrued interest	111		419	'	'	'
Other current liabilities (a)	289	[1]	272	'	'	'
Total current liabilities	1,233		35,293	'	'	'
Accumulated deferred income taxes	2,989		3,582	'	'	'
Notes or other liabilities due affiliates	0		2	'	'	'
Derivative and Hedge Liabilites Non current	4		0	'	'	'
Borrowings under debtor-in-possession credit facility (Note 5)	1,425		0	'	'	'
Long-term debt, less amounts due currently (b)	94	[2]	0	'	'	'
Affiliate Tax Sharing Liability	'		535	'	'	'
Liabilities subject to compromise (Note 7)	33,930		0	'	'	'
Other noncurrent liabilities and deferred credits	1,680		1,654	'	'	'
Total liabilities	41,355		41,066	'	'	'
Limited Partners' Capital Account	-13,418		-12,269	'	'	'
Noncontrolling interests in subsidiaries	0		1	'	'	'
Total membership interests	-13,418		-12,268	'	-10,643	-10,394
Total liabilities and membership interests	27,937		28,798	'	'	'
Parent/ Guarantor [Member]	'		'	'	'	'
Current assets:	'		'	'	'	'
Cash and cash equivalents	0		0	0	'	0
Restricted cash	'		0	'	'	'
Advances to affiliates	'		5	'	'	'
Advances to parent and affiliates	3		'	'	'	'
Trade accounts receivable – net	0		0	'	'	'
Income taxes receivable	4		0	'	'	'
Accounts receivable from affiliates	'		0	'	'	'
Accounts receivable from affiliates	0		'	'	'	'
Inventories	0		0	'	'	'
Commodity and other derivative contractual assets	0		0	'	'	'
Accumulated deferred income taxes	0		0	'	'	'
Margin deposits related to commodity positions	0		0	'	'	'
Other current assets	0		0	'	'	'
Total current assets	7		5	'	'	'
Restricted cash	0		'	'	'	'
Investments	-23,025		-11,983	'	'	'
Property, plant and equipment – net	0		0	'	'	'
Advances to parent and affiliates	0		0	'	'	'
Goodwill	0		0	'	'	'
Identifiable intangible assets – net	0		0	'	'	'
Commodity and other derivative contractual assets	0		0	'	'	'
Accumulated deferred income taxes	0		0	'	'	'
Other noncurrent assets	0		0	'	'	'
Total assets	-23,018		-11,978	'	'	'
Current liabilities:	'		'	'	'	'
Borrowings under credit and other facilities	'		0	'	'	'
Notes/advances from affiliates	0		0	'	'	'
Due to Related Parties, Current	'		0	'	'	'
Long-term Debt and Capital Lease Obligations, Excluding Credit Facilities, Current	'		96	'	'	'
Trade accounts payable	0		0	'	'	'
Trade accounts and other payables to affiliates	0		0	'	'	'
Notes payable to parent	'		103	'	'	'
Commodity and other derivative contractual liabilities	0		0	'	'	'
Margin deposits related to commodity positions	0		0	'	'	'
Accumulated deferred income taxes	24		24	'	'	'
Accrued income taxes payable to parent	0		2	'	'	'
Accrued taxes other than income	0		0	'	'	'
Accrued interest	1		1	'	'	'
Other current liabilities (a)	12		0	'	'	'
Total current liabilities	37		226	'	'	'
Accumulated deferred income taxes	50		62	'	'	'
Notes or other liabilities due affiliates	'		0	'	'	'
Derivative and Hedge Liabilites Non current	0		'	'	'	'
Borrowings under debtor-in-possession credit facility (Note 5)	0		'	'	'	'
Long-term debt, less amounts due currently (b)	43		'	'	'	'
Affiliate Tax Sharing Liability	'		-5	'	'	'
Liabilities subject to compromise (Note 7)	146		'	'	'	'
Other noncurrent liabilities and deferred credits	6		8	'	'	'
Total liabilities	282		291	'	'	'
Limited Partners' Capital Account	'		-12,269	'	'	'
Noncontrolling interests in subsidiaries	'		0	'	'	'
Total membership interests	-23,300		-12,269	'	'	'
Total liabilities and membership interests	-23,018		-11,978	'	'	'
Issuer [Member]	'		'	'	'	'
Current assets:	'		'	'	'	'
Cash and cash equivalents	2,053		725	1,200	'	1,115
Restricted cash	'		945	'	'	'
Advances to affiliates	'		0	'	'	'
Advances to parent and affiliates	8		'	'	'	'
Trade accounts receivable – net	0		0	'	'	'
Income taxes receivable	106		0	'	'	'
Accounts receivable from affiliates	'		8	'	'	'
Accounts receivable from affiliates	2		'	'	'	'
Inventories	0		0	'	'	'
Commodity and other derivative contractual assets	0		551	'	'	'
Accumulated deferred income taxes	117		117	'	'	'
Margin deposits related to commodity positions	0		0	'	'	'
Other current assets	3		4	'	'	'
Total current assets	2,289		2,350	'	'	'
Restricted cash	751		'	'	'	'
Investments	14,077		23,638	'	'	'
Property, plant and equipment – net	0		0	'	'	'
Advances to parent and affiliates	9		0	'	'	'
Goodwill	3,952		3,952	'	'	'
Identifiable intangible assets – net	0		0	'	'	'
Commodity and other derivative contractual assets	0		0	'	'	'
Accumulated deferred income taxes	550		201	'	'	'
Other noncurrent assets	0		776	'	'	'
Total assets	21,628		30,917	'	'	'
Current liabilities:	'		'	'	'	'
Borrowings under credit and other facilities	'		2,054	'	'	'
Notes/advances from affiliates	854		9,592	'	'	'
Due to Related Parties, Current	'		382	'	'	'
Long-term Debt and Capital Lease Obligations, Excluding Credit Facilities, Current	'		29,612	'	'	'
Trade accounts payable	1		3	'	'	'
Trade accounts and other payables to affiliates	0		0	'	'	'
Notes payable to parent	'		0	'	'	'
Commodity and other derivative contractual liabilities	0		1,012	'	'	'
Margin deposits related to commodity positions	0		299	'	'	'
Accumulated deferred income taxes	0		0	'	'	'
Accrued income taxes payable to parent	0		259	'	'	'
Accrued taxes other than income	0		0	'	'	'
Accrued interest	109		416	'	'	'
Other current liabilities (a)	64		0	'	'	'
Total current liabilities	1,028		43,629	'	'	'
Accumulated deferred income taxes	0		0	'	'	'
Notes or other liabilities due affiliates	'		0	'	'	'
Derivative and Hedge Liabilites Non current	0		'	'	'	'
Borrowings under debtor-in-possession credit facility (Note 5)	1,425		'	'	'	'
Long-term debt, less amounts due currently (b)	0		'	'	'	'
Affiliate Tax Sharing Liability	'		-754	'	'	'
Liabilities subject to compromise (Note 7)	42,181		'	'	'	'
Other noncurrent liabilities and deferred credits	18		25	'	'	'
Total liabilities	44,652		42,900	'	'	'
Limited Partners' Capital Account	'		-11,983	'	'	'
Noncontrolling interests in subsidiaries	'		0	'	'	'
Total membership interests	-23,024		-11,983	'	'	'
Total liabilities and membership interests	21,628		30,917	'	'	'
Other Guarantors [Member]	'		'	'	'	'
Current assets:	'		'	'	'	'
Cash and cash equivalents	24		16	23	'	15
Restricted cash	'		0	'	'	'
Advances to affiliates	'		191	'	'	'
Advances to parent and affiliates	851		'	'	'	'
Trade accounts receivable – net	923		710	'	'	'
Income taxes receivable	0		240	'	'	'
Accounts receivable from affiliates	'		0	'	'	'
Accounts receivable from affiliates	0		'	'	'	'
Inventories	370		399	'	'	'
Commodity and other derivative contractual assets	131		233	'	'	'
Accumulated deferred income taxes	24		28	'	'	'
Margin deposits related to commodity positions	64		93	'	'	'
Other current assets	51		46	'	'	'
Total current assets	2,438		1,956	'	'	'
Restricted cash	0		'	'	'	'
Investments	920		853	'	'	'
Property, plant and equipment – net	16,940		17,646	'	'	'
Advances to parent and affiliates	0		9,396	'	'	'
Goodwill	0		0	'	'	'
Identifiable intangible assets – net	1,616		1,717	'	'	'
Commodity and other derivative contractual assets	10		4	'	'	'
Accumulated deferred income taxes	0		0	'	'	'
Other noncurrent assets	7		787	'	'	'
Total assets	21,931		32,359	'	'	'
Current liabilities:	'		'	'	'	'
Borrowings under credit and other facilities	'		2,054	'	'	'
Notes/advances from affiliates	0		'	'	'	'
Due to Related Parties, Current	'		0	'	'	'
Long-term Debt and Capital Lease Obligations, Excluding Credit Facilities, Current	'		28,750	'	'	'
Trade accounts payable	433		378	'	'	'
Trade accounts and other payables to affiliates	181		169	'	'	'
Notes payable to parent	'		0	'	'	'
Commodity and other derivative contractual liabilities	112		263	'	'	'
Margin deposits related to commodity positions	3		3	'	'	'
Accumulated deferred income taxes	0		0	'	'	'
Accrued income taxes payable to parent	127		0	'	'	'
Accrued taxes other than income	86		120	'	'	'
Accrued interest	1		312	'	'	'
Other current liabilities (a)	213		272	'	'	'
Total current liabilities	1,156		32,321	'	'	'
Accumulated deferred income taxes	2,645		2,748	'	'	'
Notes or other liabilities due affiliates	'		2	'	'	'
Derivative and Hedge Liabilites Non current	4		'	'	'	'
Borrowings under debtor-in-possession credit facility (Note 5)	0		'	'	'	'
Long-term debt, less amounts due currently (b)	51		'	'	'	'
Affiliate Tax Sharing Liability	'		1,294	'	'	'
Liabilities subject to compromise (Note 7)	32,510		'	'	'	'
Other noncurrent liabilities and deferred credits	1,656		1,620	'	'	'
Total liabilities	38,022		37,985	'	'	'
Limited Partners' Capital Account	'		-5,626	'	'	'
Noncontrolling interests in subsidiaries	'		0	'	'	'
Total membership interests	-16,091		-5,626	'	'	'
Total liabilities and membership interests	21,931		32,359	'	'	'
Non-guarantors [Member]	'		'	'	'	'
Current assets:	'		'	'	'	'
Cash and cash equivalents	1		5	39	'	45
Restricted cash	'		0	'	'	'
Advances to affiliates	'		0	'	'	'
Advances to parent and affiliates	0		'	'	'	'
Trade accounts receivable – net	0		0	'	'	'
Income taxes receivable	0		0	'	'	'
Accounts receivable from affiliates	'		0	'	'	'
Accounts receivable from affiliates	0		'	'	'	'
Inventories	0		0	'	'	'
Commodity and other derivative contractual assets	0		0	'	'	'
Accumulated deferred income taxes	0		0	'	'	'
Margin deposits related to commodity positions	0		0	'	'	'
Other current assets	0		0	'	'	'
Total current assets	1		5	'	'	'
Restricted cash	0		'	'	'	'
Investments	8		8	'	'	'
Property, plant and equipment – net	3		3	'	'	'
Advances to parent and affiliates	0		0	'	'	'
Goodwill	0		0	'	'	'
Identifiable intangible assets – net	0		0	'	'	'
Commodity and other derivative contractual assets	0		0	'	'	'
Accumulated deferred income taxes	14		14	'	'	'
Other noncurrent assets	0		0	'	'	'
Total assets	26		30	'	'	'
Current liabilities:	'		'	'	'	'
Borrowings under credit and other facilities	'		0	'	'	'
Notes/advances from affiliates	0		0	'	'	'
Due to Related Parties, Current	'		0	'	'	'
Long-term Debt and Capital Lease Obligations, Excluding Credit Facilities, Current	'		0	'	'	'
Trade accounts payable	0		0	'	'	'
Trade accounts and other payables to affiliates	2		3	'	'	'
Notes payable to parent	'		0	'	'	'
Commodity and other derivative contractual liabilities	0		0	'	'	'
Margin deposits related to commodity positions	0		0	'	'	'
Accumulated deferred income taxes	0		0	'	'	'
Accrued income taxes payable to parent	0		0	'	'	'
Accrued taxes other than income	0		0	'	'	'
Accrued interest	0		0	'	'	'
Other current liabilities (a)	0		0	'	'	'
Total current liabilities	2		3	'	'	'
Accumulated deferred income taxes	0		0	'	'	'
Notes or other liabilities due affiliates	'		0	'	'	'
Derivative and Hedge Liabilites Non current	0		'	'	'	'
Borrowings under debtor-in-possession credit facility (Note 5)	0		'	'	'	'
Long-term debt, less amounts due currently (b)	0		'	'	'	'
Affiliate Tax Sharing Liability	'		0	'	'	'
Liabilities subject to compromise (Note 7)	0		'	'	'	'
Other noncurrent liabilities and deferred credits	0		0	'	'	'
Total liabilities	2		3	'	'	'
Limited Partners' Capital Account	'		26	'	'	'
Noncontrolling interests in subsidiaries	'		1	'	'	'
Total membership interests	24		27	'	'	'
Total liabilities and membership interests	26		30	'	'	'
Eliminations [Member]	'		'	'	'	'
Current assets:	'		'	'	'	'
Cash and cash equivalents	0		0	0	'	0
Restricted cash	'		0	'	'	'
Advances to affiliates	'		-196	'	'	'
Advances to parent and affiliates	-854		'	'	'	'
Trade accounts receivable – net	0		0	'	'	'
Income taxes receivable	-110		-240	'	'	'
Accounts receivable from affiliates	'		-8	'	'	'
Accounts receivable from affiliates	-2		'	'	'	'
Inventories	0		0	'	'	'
Commodity and other derivative contractual assets	0		0	'	'	'
Accumulated deferred income taxes	-24		-24	'	'	'
Margin deposits related to commodity positions	0		0	'	'	'
Other current assets	0		0	'	'	'
Total current assets	-990		-468	'	'	'
Restricted cash	0		'	'	'	'
Investments	8,924		-11,678	'	'	'
Property, plant and equipment – net	0		0	'	'	'
Advances to parent and affiliates	0		-9,396	'	'	'
Goodwill	0		0	'	'	'
Identifiable intangible assets – net	0		0	'	'	'
Commodity and other derivative contractual assets	0		0	'	'	'
Accumulated deferred income taxes	-564		-215	'	'	'
Other noncurrent assets	0		-773	'	'	'
Total assets	7,370		-22,530	'	'	'
Current liabilities:	'		'	'	'	'
Borrowings under credit and other facilities	'		-2,054	'	'	'
Notes/advances from affiliates	-854		-9,592	'	'	'
Due to Related Parties, Current	'		0	'	'	'
Long-term Debt and Capital Lease Obligations, Excluding Credit Facilities, Current	'		-28,658	'	'	'
Trade accounts payable	0		0	'	'	'
Trade accounts and other payables to affiliates	-2		-8	'	'	'
Notes payable to parent	'		0	'	'	'
Commodity and other derivative contractual liabilities	0		0	'	'	'
Margin deposits related to commodity positions	0		0	'	'	'
Accumulated deferred income taxes	-24		-24	'	'	'
Accrued income taxes payable to parent	-110		-240	'	'	'
Accrued taxes other than income	0		0	'	'	'
Accrued interest	0		-310	'	'	'
Other current liabilities (a)	0		0	'	'	'
Total current liabilities	-990		-40,886	'	'	'
Accumulated deferred income taxes	294		772	'	'	'
Notes or other liabilities due affiliates	'		0	'	'	'
Derivative and Hedge Liabilites Non current	0		'	'	'	'
Borrowings under debtor-in-possession credit facility (Note 5)	0		'	'	'	'
Long-term debt, less amounts due currently (b)	0		'	'	'	'
Affiliate Tax Sharing Liability	'		0	'	'	'
Liabilities subject to compromise (Note 7)	-40,907		'	'	'	'
Other noncurrent liabilities and deferred credits	0		1	'	'	'
Total liabilities	-41,603		-40,113	'	'	'
Limited Partners' Capital Account	'		17,583	'	'	'
Noncontrolling interests in subsidiaries	'		0	'	'	'
Total membership interests	48,973		17,583	'	'	'
Total liabilities and membership interests	$7,370		($22,530)	'	'	'
[1]	Balance at September 30, 2014 includes $33 million of current portion of debt described in (b) below.
[2]	Consists of debt of $46 million approved by the Bankruptcy Court for repayment (less $3 million of unamortized fair value discount), $13 million of debt issued by a trust and secured by assets held by the trust (less $2 million of unamortized discount) and $40 million of capitalized lease obligations.