Oncor Electric Delivery 10-Q 3 Aug 23 2023 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2023	Aug. 03, 2023	Dec. 31, 2022
Document Type	10-Q
Document Period End Date	Jun. 30, 2023
Current Fiscal Year End Date	--12-31
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	333-100240
Entity Registrant Name	Oncor Electric Delivery Company LLC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	75-2967830
Entity Address, Address Line One	1616 Woodall Rodgers Fwy.
Entity Address, City or Town	Dallas
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75202
City Area Code	214
Local Phone Number	486-2000
Entity Current Reporting Status	No
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Capital account, units outstanding	635,000,000	635,000,000	635,000,000
Entity Common Stock, Shares Outstanding		0
Entity Central Index Key	0001193311
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2
Oncor Electric Delivery Holdings Company LLC [Member]
Entity Outstanding Membership Interests		80.25%
Texas Transmission Investment LLC [Member]
Entity Outstanding Membership Interests		19.75%

Condensed Statements Of Consoli

Condensed Statements Of Consolidated Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Condensed Statements Of Consolidated Income [Abstract]
Operating revenues (Note 3)	$ 1,343,000	$ 1,293,000	$ 2,635,000	$ 2,542,000
Operating expenses:
Wholesale transmission service	322,000	290,000	643,000	571,000
Operation and maintenance	271,000	255,000	534,000	504,000
Depreciation and amortization	242,000	223,000	482,000	445,000
Provision in lieu of income taxes (Note 9)	41,000	50,000	68,000	92,000
Taxes other than amounts related to income taxes	141,000	140,000	286,000	285,000
Write-off of rate base disallowances (Note 2)			55,000
Total operating expenses	1,017,000	958,000	2,068,000	1,897,000
Operating income	326,000	335,000	567,000	645,000
Other deductions and (income) – net (Note 10)	(5,000)	(1,000)	2,000	10,000
Non-operating benefit in lieu of income taxes	(2,000)	(1,000)	(8,000)	(4,000)
Interest expense and related charges (Note 10)	133,000	108,000	256,000	216,000
Write-off of non-operating rate base disallowances (Note 2)			14,000
Net income	$ 200,000	$ 229,000	$ 303,000	$ 423,000

Condensed Statements Of Conso_2

Condensed Statements Of Consolidated Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Condensed Statements Of Consolidated Comprehensive Income [Abstract]
Net income	$ 200	$ 229	$ 303	$ 423
Other comprehensive income:
Net effects of cash flow hedges (net of tax)			1	1
Defined benefit pension plans (Notes 2 and 7)		1	(20)	2
Total other comprehensive income		1	(19)	3
Comprehensive income	$ 200	$ 230	$ 284	$ 426

Condensed Statements Of Conso_3

Condensed Statements Of Consolidated Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows - operating activities:
Net income	$ 303,000	$ 423,000
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization, including regulatory amortization	536,000	486,000
Write-off of rate base disallowances (Note 2)	69,000
Provision in lieu of deferred income taxes - net	23,000	20,000
Other – net		(11,000)
Changes in operating assets and liabilities:
Regulatory accounts related to reconcilable tariffs (Note 2)	(120,000)	12,000
Other operating assets and liabilities	(280,000)	(285,000)
Cash provided by operating activities	531,000	645,000
Cash flows - financing activities:
Issuances and borrowings of long-term debt (excluding AR Facility) (Note 5)	2,175,000	2,100,000
Repayments of long-term debt (excluding AR Facility) (Note 5)	(875,000)	(1,050,000)
Borrowings under AR Facility (Note 5)	425,000
Repayments under AR Facility (Note 5)	(100,000)
Net change in short-term borrowings (Note 4)	(198,000)	(215,000)
Capital contributions from members (Note 7)	221,000	212,000
Distributions to members (Note 7)	(255,000)	(212,000)
Debt discount, financing and reacquisition costs – net	(33,000)	(13,000)
Cash provided by financing activities	1,360,000	822,000
Cash flows - investing activities:
Capital expenditures	(1,890,000)	(1,416,000)
Other - net	17,000	38,000
Cash used in investing activities	(1,873,000)	(1,378,000)
Net change in cash, cash equivalents and restricted cash	18,000	89,000
Cash, cash equivalents and restricted cash – beginning balance	98,000	54,000
Cash, cash equivalents and restricted cash – ending balance	$ 116,000	$ 143,000

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 28,000	$ 10,000
Restricted cash, current (Note 1)	23,000	16,000
Trade accounts receivable - net (Note 10)	966,000	884,000
Amounts receivable from members related to income taxes (Note 9)	1,000
Materials and supplies inventories - at average cost	253,000	204,000
Prepayments and other current assets	122,000	109,000
Total current assets	1,393,000	1,223,000
Restricted cash, noncurrent (Note 1)	65,000	72,000
Investments and other property (Note 10)	136,000	137,000
Property, plant and equipment - net (Note 10)	26,531,000	25,203,000
Goodwill (Note 1)	4,740,000	4,740,000
Regulatory assets (Note 2)	1,607,000	1,502,000
Right-of-use operating lease and other assets (Note 6)	159,000	161,000
Total assets	34,631,000	33,038,000
Current liabilities:
Short-term borrowings (Note 4)		198,000
Long-term debt due currently (Note 5)	500,000	100,000
Trade accounts payable	490,000	536,000
Amounts payable to members related to income taxes (Note 9)	16,000	45,000
Accrued taxes other than amounts related to income	174,000	277,000
Accrued interest	113,000	97,000
Operating lease and other current liabilities	443,000	330,000
Total current liabilities	1,736,000	1,583,000
Long-term debt, less amounts due currently (Note 5)	12,323,000	11,128,000
Liability in lieu of deferred income taxes (Note 9)	2,244,000	2,182,000
Regulatory liabilities (Note 2)	2,938,000	3,014,000
Employee benefit plan obligations (Note 8)	1,387,000	1,394,000
Operating lease and other obligations (Notes 6 and 10)	291,000	275,000
Total liabilities	20,919,000	19,576,000
Commitments and contingencies (Note 6)
Membership interests (Note 7):
Capital account – number of units outstanding at June 30, 2023 and December 31, 2022 – 635,000,000	13,893,000	13,624,000
Accumulated other comprehensive loss	(181,000)	(162,000)
Total membership interests	13,712,000	13,462,000
Total liabilities and membership interests	$ 34,631,000	$ 33,038,000

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - shares	Aug. 03, 2023	Jun. 30, 2023	Dec. 31, 2022
Condensed Consolidated Balance Sheets [Abstract]
Capital account, units outstanding	635,000,000	635,000,000	635,000,000

Business And Significant Accoun

Business And Significant Accounting Policies	6 Months Ended
	Jun. 30, 2023
Business And Significant Accounting Policies [Abstract]
BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES	1. BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES Description of Business References in this report to “we,” “our,” “us” and “the company” are to Oncor and/or its subsidiaries as apparent in the context. See “Glossary” for the definition of terms and abbreviations. We are a regulated electricity transmission and distribution company that provides the essential service of delivering electricity safely, reliably and economically to end-use consumers through our electrical systems, as well as providing transmission grid connections to merchant generation facilities and interconnections to other transmission grids in Texas. Our transmission and distribution rates are regulated by the PUCT and certain cities, and in certain limited instances, by the FERC. We are not a seller of electricity, nor do we purchase electricity for resale. We are a direct, majority-owned subsidiary of Oncor Holdings, which is indirectly and wholly owned by Sempra. Oncor Holdings owns 80.25 % of our membership interests and Texas Transmission owns 19.75 % of our membership interests. We are managed as an integrated business; consequently, there are no separate reportable business segments. Ring-Fencing Measures Since 2007, various ring-fencing measures have been taken to enhance our credit quality and the separateness between the Oncor Ring-Fenced Entities and entities with ownership interests in Oncor or Oncor Holdings. These ring-fencing measures serve to mitigate the Oncor Ring-Fenced Entities’ credit exposure to owners of Oncor and Oncor Holdings, and to reduce the risk that the assets and liabilities of the Oncor Ring-Fenced Entities would be substantively consolidated with the assets and liabilities of any direct or indirect owners of Oncor and Oncor Holdings in connection with a bankruptcy of any such entities. These measures include the November 2008 sale of 19.75 % of Oncor’s equity interests to Texas Transmission. In March 2018, Sempra indirectly acquired Oncor Holdings after obtaining various approvals, including PUCT approval through the Sempra Order, which outlines certain ring-fencing measures, governance mechanisms and restrictions that apply after the Sempra Acquisition. As a result of these ring-fencing measures, Sempra does not control Oncor, and the ring-fencing measures limit Sempra’s ability to direct the management, policies and operations of Oncor, including the deployment or disposition of Oncor’s assets, declarations of dividends, strategic planning and other important corporate issues and actions. Our Limited Liability Company Agreement requires PUCT approval of certain revisions to the Limited Liability Company Agreement, including, among other things, governance structure and other various ring-fencing measures. None of the assets of the Oncor Ring-Fenced Entities are available to satisfy the debt or obligations of any Sempra entity or any other direct or indirect owner of Oncor or Oncor Holdings. The assets and liabilities of the Oncor Ring-Fenced Entities are separate and distinct from those of any Sempra entities and any other direct or indirect owner of Oncor or Oncor Holdings. We do not bear any liability for debt or contractual obligations of Sempra and its affiliates or any other direct or indirect owner of Oncor or Oncor Holdings, and vice versa. Accordingly, our operations are conducted, and our cash flows are managed, independently from Sempra and its affiliates and any other direct or indirect owner of Oncor or Oncor Holdings. Oncor is a limited liability company governed by a board of directors, not its members. The Sempra Order and our Limited Liability Company Agreement require that the board of directors of Oncor consist of 13 members, constituted as follows:  seven Disinterested Directors, who (i) shall be independent directors in all material respects under the rules of the New York Stock Exchange in relation to Sempra or its subsidiaries and affiliated entities and any entity with a direct or indirect ownership interest in Oncor or Oncor Holdings, and (ii) shall have no material relationship with Sempra or its subsidiaries or affiliated entities or any entity with a direct or indirect ownership interest in Oncor or Oncor Holdings, currently or within the previous ten years ;  two members designated by Sempra (through Oncor Holdings);  two members designated by Texas Transmission; and  two current or former officers of Oncor (each, an Oncor Officer Director), currently Robert S. Shapard and E. Allen Nye, Jr., who are our Chairman of our board of directors and Chief Executive, respectively. Until March 9, 2028, in order for a current or former officer of Oncor to be eligible to serve as an Oncor Officer Director, the officer cannot have worked for Sempra or any of its subsidiaries or affiliated entities (excluding Oncor Holdings and Oncor) or any other entity with a direct or indirect ownership interest in Oncor or Oncor Holdings in the ten-year period prior to the date on which the officer first became employed by Oncor. Oncor Holdings, at the direction of STIH, has the right to nominate and/or seek the removal of the Oncor Officer Directors, subject to approval by a majority of the Oncor board of directors. In addition, the Sempra Order provides that Oncor’s board of directors cannot be overruled by the board of directors of Sempra or any of its subsidiaries on dividend policy, the issuance of dividends or other distributions (except for contractual tax payments), debt issuance, capital expenditures, operation and maintenance expenditures, management and service fees, and appointment or removal of members of the board of directors, provided that certain actions may also require the additional approval of the Oncor Holdings board of directors. The Sempra Order also provides that any changes to the size, composition, structure or rights of the board of directors must first be approved by the PUCT. In addition, if Sempra acquires Texas Transmission’s interest in Oncor, the two board of director positions on Oncor’s board of directors that Texas Transmission is entitled to appoint will be eliminated and the size of Oncor’s board of directors will be reduced by two . Additional regulatory commitments, governance mechanisms and restrictions provided in the Sempra Order and our Limited Liability Company Agreement to ring-fence Oncor from its owners include, among others:  A majority of the Disinterested Directors of Oncor and the directors designated by Texas Transmission that are present and voting (of which at least one must be present and voting) must approve any annual or multi-year budget if the aggregate amount of capital expenditures or operating and maintenance expenditures in such budget is more than a 10 % increase or decrease from the corresponding amounts of such expenditures in the budget for the preceding fiscal year or multi-year period, as applicable;  Oncor may not pay any dividends or make any other distributions (except for contractual tax payments) if a majority of its Disinterested Directors or either of the two directors appointed by Texas Transmission determines that it is in the best interests of Oncor to retain such amounts to meet expected future requirements;  At all times, Oncor will remain in compliance with the debt-to-equity ratio established by the PUCT from time to time for ratemaking purposes, and Oncor will not pay dividends or other distributions (except for contractual tax payments) if such payment would cause its debt-to-equity ratio to exceed the debt-to-equity ratio approved by the PUCT;  If the credit rating on Oncor’s senior secured debt by any of the three major rating agencies falls below BBB (or the equivalent), Oncor will suspend dividends and other distributions (except for contractual tax payments), unless otherwise allowed by the PUCT;  Without the prior approval of the PUCT, neither Sempra nor any of its affiliates (excluding Oncor) will incur, guaranty or pledge assets in respect of any indebtedness that is dependent on the revenues of Oncor in more than a proportionate degree than the other revenues of Sempra or on the membership interests of Oncor, and there will be no debt at STH or STIH at any time following the closing of the Sempra Acquisition;  Neither Oncor nor Oncor Holdings will lend money to, borrow money from or share credit facilities with Sempra or any of its affiliates (other than Oncor subsidiaries), or any entity with a direct or indirect ownership interest in Oncor or Oncor Holdings; and  There must be maintained certain “separateness measures” that reinforce the legal and financial separation of Oncor from its owners, including a requirement that dealings between Oncor, Oncor Holdings and their subsidiaries with Sempra, any of Sempra’s other affiliates or any entity with a direct or indirect ownership interest in Oncor or Oncor Holdings, must be on an arm’s-length basis, limitations on affiliate transactions, separate recordkeeping requirements and a prohibition on Sempra or its affiliates or any entity with a direct or indirect ownership interest in Oncor or Oncor Holdings pledging Oncor assets or membership interests for any entity other than Oncor. Basis of Presentation These unaudited condensed consolidated financial statements should be read in conjunction with the audited financial statements and related notes included in our 2022 Form 10-K. In the opinion of Oncor management, all adjustments (consisting of normal recurring accruals) necessary for a fair presentation of the results of operations and financial position have been made. We have evaluated all subsequent events through the date the financial statements were issued. All appropriate intercompany items and transactions have been eliminated in consolidation. The results of operations for an interim period may not give a true indication of results for a full year due to seasonality or other factors, such as changes in the rates we are authorized to charge customers. We also apply the guidance of ASC 810, Consolidations, or ASC 810, to determine when an entity that is insufficiently capitalized or not controlled through its voting interests, referred to as a VIE, should be consolidated. Our consolidated financial statements have been prepared in accordance with GAAP governing rate-regulated operations. All dollar amounts in the financial statements and tables in the notes are stated in millions of U.S. dollars unless otherwise indicated. Use of Estimates Preparation of our financial statements requires management to make 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. 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. No material adjustments were made to previous estimates or assumptions during the current period. Revenue Recognition Oncor’s revenue is billed under tariffs approved by the PUCT and the majority of revenues are related to providing electric delivery service to consumers. Tariff rates are designed to recover the cost of providing electric delivery service including a reasonable rate of return on invested capital. Revenues are generally recognized when the underlying service has been provided in an amount prescribed by the related tariff. See Note 3 for additional information regarding revenues. Interest Rate Derivatives, Hedge Accounting and Mark-to-Market Accounting We are exposed to interest rates primarily as a result of our current and expected use of financing. We may, from time to time, utilize interest rate derivative instruments typically designated as cash flow hedges, to lock in interest rates in anticipation of future financings. We may designate an interest rate derivative instrument as a cash flow hedge if it effectively converts anticipated cash flows associated with interest payments to a fixed dollar amount. Designating interest rate derivative instruments as cash flow hedges is dependent on the business context in which the instrument is being used, the effectiveness of the instrument in offsetting the risk that the future cash flows of interest payments may vary, and other criteria. In accounting for cash flow hedges, derivative assets and liabilities are recorded on the balance sheet at fair value with an offset to other comprehensive income (loss). Amounts remain in accumulated other comprehensive income (loss) and are reclassified into net income as the interest expense on the related debt affects net income. T he fair value of an interest rate derivative instrument is recognized on the balance sheet as a derivative asset or liability and changes in the fair value are recognized in net income if the criteria for cash flow hedge accounting are not met or if the instrument is not designated as a cash flow hedge. This recognition is referred to as “mark-to-market” accounting. Impairment of Long-Lived Assets and Goodwill We evaluate long-lived assets (including intangible assets with finite lives) for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. We also evaluate goodwill for impairment annually on October 1 and whenever events or changes in circumstances indicate that an impairment may exist. The determination of the existence of these and other indications of impairment involves judgments that are subjective in nature and may require the use of estimates in forecasting future results and cash flows. For our annual goodwill impairment testing, we generally have the option to directly perform a quantitative assessment or first make a qualitative assessment of whether it is more likely than not that our enterprise fair value is less than our enterprise carrying value before applying the quantitative assessment. If we elect to perform the qualitative assessment, we evaluate relevant events and circumstances, including but not limited to, macroeconomic conditions, industry and market considerations, cost factors and our overall financial performance. If, after assessing these qualitative factors, we determine that it is more-likely-than-not that our estimated enterprise fair value is less than our enterprise carrying book value, then we perform a quantitative assessment. If, after performing the quantitative assessment, we determine that goodwill is impaired, we record the amount of goodwill impairment as the excess of enterprise carrying book value over estimated enterprise fair value, not to exceed the carrying amount of goodwill. Cash, Cash Equivalents and Restricted Cash For purposes of reporting cash and cash equivalents, highly liquid investments with original maturities of three months or less at the date of purchase are considered to be cash equivalents. The following table provides a reconciliation of cash, cash equivalents and restricted cash reported on the unaudited condensed consolidated balance sheets to the sum of such amounts reported on the unaudited condensed statements of consolidated cash flows: At June 30, At December 31, 2023 2022 Cash, cash equivalents and restricted cash Cash and cash equivalents $ 28 $ 10 Restricted cash, current (a) 23 16 Restricted cash, noncurrent (a) 65 72 Total cash, cash equivalents and restricted cash on the condensed statements of consolidated cash flows $ 116 $ 98 ____________ (a) Restricted cash represents amounts deposited with Oncor for customer advances for construction that are subject to probable return in accordance with PUCT rules, ERCOT requirements or our tariffs relating to generation interconnection and construction and/or extension of electric delivery system facilities. We maintain these amounts in a separate escrow account. Contingencies Our financial results may be affected by judgments and estimates related to contingencies. For loss contingencies, we accrue the loss if an event has occurred on or before the balance sheet date, and:  information available through the date we file our financial statements indicates it is probable that a loss has been incurred, given the likelihood of uncertain future events; and  the amount of the loss can be reasonably estimated. We do not accrue contingencies that might result in gains. We continuously assess contingencies for litigation claims, environmental remediation and other events. See Note 6 for a discussion of contingencies.

Regulatory Matters

Regulatory Matters	6 Months Ended
	Jun. 30, 2023
Regulatory Matters [Abstract]
REGULATORY MATTERS	2. REGULATORY MATTERS Rate Proceedings Base Rate Review (PUCT Docket No. 53601) On April 6, 20 23, the PUCT issued a final order in our comprehensive base rate review filed in May 2022 with the PUCT and the cities in our service territory that have retained original jurisdiction over rates. New base rates implementing the final order went into effect on May 1, 2023. Key findings made by the PUCT in the final order include setting our authorized return on equity at 9.7 % (a decrease from our prior authorized return on equity of 9.8 %), maintaining our regulatory capital structure at 57.5 % debt to 42.5 % equity, approving our requested regulatory asset amortization period of five years , changing depreciation rates and lives of certain depreciable assets, and approving our requested increase for our annual self-insurance reserve accrual primarily associated with storm related costs. In addition, the final order excluded from rates an acquisition premium and its associated amortization costs relating to certain plant facilities acquired by Oncor in 2019, as well as $ 65 million of certain employee benefit and compensation related costs that we had previously capitalized primarily to property, plant and equipment during the period of 2017 through 2021. As a result, we recognized a charge against income in the three months ended March 31, 2023 for the effects of that $ 65 million disallowance, as well as an additional $ 4 million charge against income due to certain similar employee benefit and compensation related costs that were capitalized during 2022. The total $ 69 million ($ 54 million after-tax) write-off consists of a $ 55 million ($ 43 million after-tax) write-off of disallowed capitalized property, plant and equipment reflected in operating expenses and a $ 14 million ($ 11 million after-tax) write-off of non-operating cost disallowances related to these employee benefit and compensation related costs. On May 1, 2023, we filed a motion for rehearing seeking reconsideration of certain of the exclusions from rates, as well as seeking certain technical corrections to the final order. Certain intervening parties in the proceeding also filed motions for rehearing seeking reconsideration of various provisions in the final order. On June 30, 2023, the PUCT issued an order on rehearing in response to the motions for rehearing. The order on rehearing made certain technical and typographical corrections to the final order, but otherwise affirmed the material provisions of the final order and did not require modification of the rates that went into effect on May 1, 2023. The order on rehearing is subject to motions for rehearing and appeals. We cannot predict the outcome of these matters . Capital Trackers DCRF and TCOS interim rate adjustments, also known as capital trackers, allow us to recover the cost of certain investments before the investments are deemed prudent in a base rate review. In June 2023, legislation was enacted that increased the number of DCRF rate adjustments that may be filed by utilities in a single year from one adjustment filing to up to two adjustment filings per year. Under PUCT rules, we can file up to two TCOS interim rate adjustment applications in a calendar year to reflect changes in our invested transmission capital. These interim rate applications are subject to a regulatory proceeding and PUCT approval. In 2023, Onc or has filed the following interim rate update applications with the PUCT: Filing Type PUCT Docket No. Filed Requested Effective Date Requested Annual Revenue Impact DCRF 55190 (a) June 2023 September 2023 (a) $ 153 TCOS 55282 (a) July 2023 September 2023 (a) $ 42 ____________ (a) Pending PUCT approval. Regulatory Assets and Liabilities We are subject to rate regulation and our financial statements reflect regulatory assets and liabilities in accordance with accounting standards related to the effect of certain types of regulation. Regulatory assets and liabilities represent probable future revenues that will be recovered from or refunded to customers through the ratemaking process based on PURA and/or the PUCT’s orders, precedents or substantive rules. Rate regulation is premised on the full recovery of prudently incurred costs and a reasonable rate of return on invested capital subject to PUCT review for reasonableness. Regulatory decisions can have an impact on the recovery of costs, the rate earned on invested capital and the timing and amount of assets to be recovered by rates. On May 1, 2023, as part of the implementation of new base rates reflecting the final order in our comprehensive base rate review (PUCT Docket No. 53601), we commenced a five-year amortization period for certain regulatory assets and liabilities accrued through the end of the December 31, 2021 test year. The following table presents components of our regulatory assets and liabilities and their remaining recovery periods in effect at June 30, 2023. Remaining Rate Recovery/Amortization Period in Effect At June 30, 2023 At June 30, 2023 At December 31, 2022 Regulatory assets: Employee retirement liability (a)(b)(c)(d) To be determined $ 154 $ 157 Employee retirement costs being amortized 5 years 109 158 Employee retirement costs incurred since the last base rate review periods (b) To be determined 79 91 Self-insurance reserve (primarily storm recovery costs) being amortized 5 years 513 181 Self-insurance reserve incurred since the last base rate review periods (primarily storm related) (b) To be determined 372 571 Debt reacquisition costs Lives of related debt 12 15 Under-recovered AMS costs 5 years 96 107 Energy efficiency program performance bonus (a) Approximately 1 year 14 28 Wholesale distribution substation service being amortized 5 years 73 - Wholesale distribution substation service incurred since the last base rate review periods (b) To be determined 28 97 Expenses related to COVID-19 being amortized 5 years 34 - Unrecovered expenses related to COVID-19 incurred since the last base rate review periods (b) To be determined 2 37 Recoverable deferred income taxes Various 31 25 Uncollectible payments from REPs being amortized 5 years 8 - Uncollectible payments from REPs incurred since the last base rate review periods (b) To be determined - 8 Under-recovered wholesale transmission service expense (a) Approximately 1 year 50 - Other regulatory assets Various 32 27 Total regulatory assets 1,607 1,502 Regulatory liabilities: Estimated net removal costs Lives of related assets 1,483 1,431 Excess deferred taxes Primarily over lives of related assets 1,343 1,375 Over-recovered wholesale transmission service expense (a) Approximately 1 year - 101 Unamortized gain on reacquisition of debt Lives of related debt 25 25 Employee retirement costs over-recovered being refunded 5 years 25 - Employee retirement costs over-recovered since the last base rate review periods (b) To be determined 34 60 Other regulatory liabilities Various 28 22 Total regulatory liabilities 2,938 3,014 Net regulatory assets (liabilities) $ ( 1,331 ) $ ( 1,512 ) ____________ (a) Not earning a return in the regulatory rate-setting process. (b) Recovery/refund is specifically authorized by statute or by the PUCT, subject to reasonableness review. (c) Represents unfunded liabilities recorded in accordance with pension and OPEB accounting standards. (d) Reflects a $ 20 million reclassification related to employee retirement liabilities from regulatory assets to other comprehensive income in the first quarter of 2023, recorded as a result of the final order in our comprehensive base rate review (PUCT Docket No. 53601).

Revenues

Revenues	6 Months Ended
	Jun. 30, 2023
Revenues [Abstract]
REVENUES	3. REVENUES General Our revenue is billed monthly under tariffs approved by the PUCT and the majority of revenues are related to providing electric delivery service to consumers. Tariff rates are designed to recover the cost of providing electric delivery service to customers including a reasonable rate of return on invested capital. As the volumes delivered can be directly measured, our revenues are recognized when the underlying service has been provided in an amount prescribed by the related tariff. We recognize revenue in the amount that we have the right to invoice. Substantially all of our revenues are from contracts with customers except for alternative revenue program revenues discussed below. Reconcilable Tariffs The PUCT has designated certain tariffs (primarily TCRF and EECRF) as reconcilable, which means the differences between amounts billed under these tariffs and the related incurred costs are deferred as either regulatory assets or regulatory liabilities. Accordingly, at prescribed intervals, future tariffs are adjusted to either repay regulatory liabilities or collect regulatory assets. Alternative Revenue Program The PUCT has implemented an incentive program allowing us to earn energy efficiency program performance bonuses by exceeding PURA-mandated energy efficiency program targets. This incentive program and the related performance bonus revenues are considered an “alternative revenue program” under GAAP. Annual performance bonuses are recognized as revenue when approved by the PUCT, typically in the third or fourth quarter each year. Disaggregation of Revenues The following table reflects electric delivery revenues disaggregated by tariff: Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Operating revenues Revenues contributing to earnings: Distribution base revenues $ 614 $ 600 $ 1,165 $ 1,178 Transmission base revenues (TCOS revenues): Billed to third-party wholesale customers 238 237 488 470 Billed to REPs serving Oncor distribution customers, through TCRF 133 132 274 262 Total transmission base revenues 371 369 762 732 Other miscellaneous revenues 25 22 42 40 Total revenues contributing to earnings 1,010 991 1,969 1,950 Revenues collected for pass-through expenses: TCRF – third-party wholesale transmission service 322 290 643 571 EECRF and other 11 12 23 21 Total revenues collected for pass-through expenses 333 302 666 592 Total operating revenues $ 1,343 $ 1,293 $ 2,635 $ 2,542 Customers At June 30, 2023, our distribution business customers primarily consisted of over 100 REPs that sell the electricity we distribute to consumers in our certificated service area. The majority of consumers of the electricity we deliver are free to choose their electricity supplier from REPs who compete for their business. Our transmission base revenues are collected from load serving entities benefiting from our transmission system. Our transmission business customers consist of municipally-owned utilities, electric cooperatives and other distribution companies. Revenues from REP subsidiaries of our two largest customers collectively represented 21 % and 18 %, respectively, of our total operating revenues for the three months ended June 30, 2023 and 23 % and 20 %, respectively, of our total operating revenues for the six months ended June 30, 2023. No other customer represented more than 10% of our total operating revenues for such three-month and six-month periods. Variability Our revenues and cash flows are subject to seasonality, timing of customer billings, weather conditions and other electricity usage drivers, with revenues being highest in the summer. Payment of customer billings is due 35 days after invoicing. Under a PUCT rule relating to the Certification of Retail Electric Providers, write-offs of uncollectible amounts owed by REPs are recoverable as a regulatory asset. Pass-through Expenses Revenue equal to expenses that are allowed to be passed-through to customers (primarily third-party wholesale transmission service and energy efficiency program costs) are recognized at the time the expense is recognized. Franchise taxes are assessed by local governmental bodies, based on kWh delivered and are not a “pass-through” item. The rates we charge customers are intended to recover the franchise taxes, but we are not acting as an agent to collect the taxes from customers; therefore, franchise taxes are reported as a principal component of “taxes other than amounts related to income taxes” instead of a reduction to “revenues” in the income statement.

Short-Term Borrowings

Short-Term Borrowings	6 Months Ended
	Jun. 30, 2023
Short-Term Borrowings [Abstract]
SHORT-TERM BORROWINGS	4. SHORT-TERM BORROWINGS The following table reflects our outstanding short-term borrowings and available unused credit under the Credit Facility and CP Program at June 30, 2023 and December 31, 2022: At June 30, At December 31, 2023 2022 Total credit facility borrowing capacity $ 2,000 $ 2,000 Credit facility outstanding borrowings - - Commercial paper outstanding (a) - ( 198 ) Letters of credit outstanding - - Available unused credit $ 2,000 $ 1,802 ____________ (a) The weighted average interest rate for commercial paper was 4.58 % at December 31, 2022. All outstanding CP Notes at December 31, 2022 had maturity dates of less than one year . Credit Facility Our $ 2.0 billion unsecured revolving Credit Facility, which was entered into in November 2021 and extended in November 2022 by amendment, has a maturity date of November 9, 2027. We have the option to request one additional one-year extension. We also have the option to request an increase in our borrowing capacity of up to $ 400 million in $ 100 million minimum increments, provided certain conditions set forth in the Credit Facility are met, including lender approvals. Borrowings under the Credit Facility, if any, are classified as short-term on the balance sheet. Borrowings under the Credit Facility bear interest at a per annum rate equal to, at our option, (i) term SOFR for the interest period relevant to such borrowing, plus an adjustment of 0.10 % (the SOFR Adjustment), plus an applicable margin of between 0.875 % and 1.50 %, depending on certain credit ratings assigned to us, or (ii) an alternate base rate (equal to the greatest of (1) the prime rate as quoted by The Wall Street Journal on such date, (2) the greater of the federal funds effective rate or the overnight bank funding rate, plus 0.50 %, and (3) term SOFR for a one-month interest period on such date, plus the SOFR Adjustment, plus 1.0 %), plus, in each case, an applicable margin of between 0.00 % and 0.50 %, depending on certain credit ratings assigned to our debt. The Credit Facility also provides for an alternative rate of interest upon the occurrence of certain events related to the current benchmark. A commitment fee is payable quarterly in arrears and upon termination or commitment reduction at a rate per annum equal to between 0.075 % and 0.225 %, depending on certain credit ratings assigned to us, of the commitments under the Credit Facility. Letter of credit fees under the Credit Facility are payable quarterly in arrears and upon termination at a rate per annum equal to the applicable margin for adjusted term SOFR under the Credit Facility. Fronting fees in an amount as separately agreed by Oncor and any fronting bank that issues a letter of credit are also payable quarterly in arrears and upon termination to each such fronting bank. The Credit Facility includes sustainability-linked pricing metrics related to specific environmental and employee health and safety sustainability objectives. The Credit Facility provides that the applicable margin and commitment fee may be increased, decreased or have no change depending on our annual performance on the two sustainability-linked pricing metrics set forth in the Credit Facility. The maximum pricing adjustment in any given year is +/- 0.01 % on the commitment fee and +/- 0.05 % on the applicable margin. The Credit Facility requires that we maintain a maximum consolidated senior debt to consolidated total capitalization ratio of 0.65 to 1.00 and observe certain customary reporting requirements and other affirmative covenants. At June 30, 2023, we were in compliance with these covenants. The Credit Facility also contains customary events of default for facilities of this type, the occurrence of which would allow the lenders to accelerate all outstanding loans and terminate their commitments, including certain changes in control of Oncor that are not permitted transactions under the Credit Facility and cross-default provisions in the event Oncor or any of its subsidiaries defaults on indebtedness in a principal amount in excess of $ 100 million or receives judgments for the payment of money in excess of $ 100 million that are not discharged or stayed within 60 days . CP Program We maintain the CP Program under which we may issue unsecured CP Notes (with a maturity date not exceeding 397 days from the date of issue) on a private placement basis up to a maximum aggregate face or principal amount outstanding at any time of $ 2.0 billion. The proceeds of CP Notes issued under the CP Program are used for working capital and general corporate purposes. The CP Program obtains liquidity support from our Credit Facility discussed above. We may utilize either the CP Program or the Credit Facility, at our option, to meet our funding needs.

Long-Term Debt

Long-Term Debt	6 Months Ended
	Jun. 30, 2023
Long-Term Debt [Abstract]
LONG-TERM DEBT	5. LONG-TERM DEBT At June 30, 2023, our long-term debt consisted of fixed rate senior secured notes and variable rate secured debt borrowed under our AR Facility. Our senior secured notes are secured equally and ratably by a first priority lien on certain transmission and distribution assets. See “Deed of Trust” below for additional information. Amounts borrowed under our AR Facility are secured by accounts receivable from REPs and certain related rights under our AR Facility. See “—Long-Term Debt-Related Activity in 2023—AR Facility” below for additional information. At June 30, 2023 and December 31, 2022, our long-term debt consisted of the following: At June 30, At December 31, 2023 2022 Fixed Rate Secured: 2.75 % Senior Notes due June 1, 2024 $ 500 $ 500 2.95 % Senior Notes due April 1, 2025 350 350 0.55 % Senior Notes due October 1, 2025 450 450 3.86 % Senior Notes, Series A, due December 3, 2025 174 174 3.86 % Senior Notes, Series B, due January 14, 2026 38 38 5.50 % Senior Notes, Series C, due May 1, 2026 200 - 4.30 % Senior Notes due May 15, 2028 600 - 3.70 % Senior Notes due November 15, 2028 650 650 5.75 % Senior Notes due March 15, 2029 318 318 2.75 % Senior Notes due May 15, 2030 700 700 5.34 % Senior Notes, Series D, due May 1, 2031 100 - 7.00 % Senior Notes due May 1, 2032 494 494 4.15 % Senior Notes due June 1, 2032 400 400 4.55 % Senior Notes due September 15, 2032 700 700 7.25 % Senior Notes due January 15, 2033 323 323 5.45 % Senior Notes, Series E, due May 1, 2036 100 - 7.50 % Senior Notes due September 1, 2038 300 300 5.25 % Senior Notes due September 30, 2040 475 475 4.55 % Senior Notes due December 1, 2041 400 400 5.30 % Senior Notes due June 1, 2042 348 348 3.75 % Senior Notes due April 1, 2045 550 550 3.80 % Senior Notes due September 30, 2047 325 325 4.10 % Senior Notes due November 15, 2048 450 450 3.80 % Senior Notes due June 1, 2049 500 500 3.10 % Senior Notes due September 15, 2049 700 700 3.70 % Senior Notes due May 15, 2050 400 400 2.70 % Senior Notes due November 15, 2051 500 500 4.60 % Senior Notes due June 1, 2052 400 400 4.95 % Senior Notes due September 15, 2052 900 500 5.35 % Senior Notes due October 1, 2052 300 300 Fixed rate secured long-term debt 12,645 11,245 Variable Rate Secured: AR Facility due April 28, 2026 325 - Variable Rate Unsecured: Term loan credit agreement due August 30, 2023 - 100 Total long-term debt 12,970 11,345 Unamortized discount, premium and debt issuance costs ( 147 ) ( 117 ) Less amount due currently ( 500 ) ( 100 ) Long-term debt, less amounts due currently $ 12,323 $ 11,128 Deed of Trust Our long-term senior secured notes are secured equally and ratably by a first priority lien on all property acquired or constructed by us for use in our electricity transmission and distribution business, subject to certain exceptions. The property is mortgaged under the Deed of Trust. The Deed of Trust permits us to secure indebtedness with the lien of the Deed of Trust up to the aggregate of (i) the amount of available bond credits, and (ii) 85 % of the lower of the fair value or cost of certain property additions that could be certified to the Deed of Trust collateral agent. Long-Term Debt-Related Activity in 2023 Senior Secured Notes March 2023 Note Purchase Agreement On March 29, 2023, we entered into a note purchase agreement (March 2023 NPA) with the purchasers named therein, which provided for the issuance by us of certain senior secured notes. Pursuant to the March 2023 NPA, on March 29, 2023, we sold $ 200 million aggregate principal amount of 5.50 % Senior Secured Notes, Series C, due May 1, 2026 (Series C Notes), $ 72 million aggregate principal amount of 5.34 % Senior Secured Notes, Series D, due May 1, 2031 (Initial Series D Notes) and $ 80 million aggregate principal amount of 5.45 % Senior Secured Notes, Series E, due May 1, 2036 (Initial Series E Notes), and on April 26, 2023, we sold an additional $ 28 million aggregate principal amount of 5.34 % Senior Secured Notes, Series D, due May 1, 2031 (Additional Series D Notes and, together with the Initial Series D Notes, the Series D Notes) and an additional $ 20 million aggregate principal amount of 5.45 % Senior Secured Notes, Series E, due May 1, 2036 (Additional Series E Notes and together with the Initial Series E Notes, Series E Notes). The senior secured notes issued under the March 2023 NPA are secured pursuant to the Deed of Trust. The March 2023 NPA provides for optional prepayment and make-whole payments with respect to any series of notes issued under the March 2023 NPA. The March 2023 NPA also contains customary covenants, restricting us, subject to certain exceptions, from among other things, entering into mergers and consolidations, and sales of substantial assets. In addition, the March 2023 NPA requires that we maintain a consolidated senior debt to consolidated total capitalization ratio of no greater than 0.65 to 1.00 and observe certain customary reporting requirements and other affirmative covenants. The March 2023 NPA contains customary events of default, including the failure to pay principal or interest when due, among others. If any such event of default occurs and is continuing, among other remedies provided in the March 2023 NPA, the outstanding principal of the notes issued under the March 2023 NPA may be declared due and payable. We used the proceeds from the sale of the senior secured notes under the March 2023 NPA for general corporate purposes, including repayment of outstanding CP Notes. The Series C Notes bear interest at a rate of 5.50 % per annum and mature on May 1, 2026. The Series D Notes bear interest at a rate of 5.34 % per annum and mature on May 1, 2031. The Series E Notes bear interest at a rate of 5.45 % per annum and mature on May 1, 2036. Interest on the senior secured notes issued on March 29, 2023 was accrued beginning from March 29, 2023. Interest on the senior secured notes issued on April 26, 2023 was accrued beginning from April 26, 2023. All interest will be payable semi-annually on May 1 and November 1 of each year, beginning on November 1, 2023. Issuance of Senior Secured Notes Under Indenture On May 11, 2023, we issued $ 600 million aggregate principal amount of 4.30 % Senior Secured Notes due May 15, 2028 (2028 Notes) and $ 400 million aggregate principal amount of 4.95 % Senior Secured Notes due September 15, 2052 (2052 Notes). The 2052 Notes constitute an additional issuance of our 4.95 % Senior Secured Notes due 2052, $ 500 million of which we previously issued on September 8, 2022. The 2028 Notes and 2052 Notes were issued under one of our existing indentures and are secured pursuant to the Deed of Trust. We used the proceeds (net of the initial purchasers’ discount fees, expenses, and accrued interest) of approximately $ 970 million from the sale of the 2028 Notes and 2052 Notes for general corporate purposes, including to repay on May 11, 2023, the full amount of $ 625 million outstanding under our unsecured term loan credit agreement, dated January 24, 2023, the full amount of $ 150 million outstanding under our unsecured term loan credit agreement, dated March 22, 2023, and the then-full amount of $ 100 million outstanding under our AR Facility. The 2028 Notes bear interest at a rate of 4.30 % per annum and mature on May 15, 2028. The 2052 Notes bear interest at a rate of 4.95 % per annum and mature on September 15, 2052. Interest on the 2028 Notes accrued from May 11, 2023 and will be payable semi-annually on May 15 and November 15 of each year, beginning on November 15, 2023. Interest on the 2052 Notes accrued from March 15, 2023, and will be payable semi-annually on March 15 and September 15 of each year, beginning on September 15, 2023. Prior to April 15, 2028 in the case of the 2028 Notes and March 15, 2052 in the case of the 2052 Notes, we may redeem such notes at any time, in whole or in part, at a price equal to 100 % of their principal amount, plus accrued and unpaid interest and a “make-whole” premium. On and after April 15, 2028 in the case of the 2028 Notes and March 15, 2052 in the case of the 2052 Notes, we may redeem them at any time, in whole or in part, at a redemption price equal to 100 % of the principal amount of such notes, plus accrued and unpaid interest. AR Facility On April 28, 2023, we and our bankruptcy-remote special purpose entity Receivables LLC, a wholly-owned subsidiary of Oncor, established the AR Facility, a revolving accounts receivable securitization facility. Under the terms of the AR Facility, Oncor sells or contributes all of its existing and future accounts receivable from REPs and certain related rights to Receivables LLC as contemplated by the terms of the AR Facility. Receivables LLC then pledges those REP receivables and related rights to the lenders under the AR Facility as collateral for borrowings. Oncor serves as servicer of the AR Facility and receives a fee from Receivables LLC equal to 1.00 % per annum of the aggregate unpaid balance of receivables as of the last day of each settlement period. Receivables LLC’s sole business consists of the purchase or acceptance through capital contributions of the receivables and related rights from Oncor and the subsequent retransfer of or granting of a security interest in such receivables and related rights to the administrative agent for the benefit of the lenders pursuant to the receivables financing agreement. Receivables LLC is a separate legal entity with its own separate creditors who will be entitled, upon its liquidation, to have amounts owed to them be satisfied out of Receivables LLC’s assets prior to any assets or value in Receivables LLC becoming available to Receivables LLC’s equity holder. The assets of Receivables LLC are not available to pay creditors of Oncor or any affiliate thereof. Receivables LLC is considered a VIE. See Note 10 for more information related to our consolidated VIE. Oncor has access to the AR Facility, under which Receivables LLC may borrow at any one time an amount equal to the lesser of the facility limit of $ 500 million and the borrowing base amount calculated based on the outstanding balance of eligible receivables held as collateral, subject to certain reserves, concentration limits, and other limitations. The amounts available for borrowing may vary based on the amount of accounts receivable that Receivables LLC holds. At June 30, 2023, the borrowing base for the AR Facility was $ 495 million. After taking into account the $ 325 million in aggregate borrowings outstanding, $ 170 million in borrowing capacity was available under the AR Facility at June 30, 2023. On July 28, 2023, we borrowed an additional $ 135 million under the AR Facility. The agreements relating to the AR Facility contain customary representations and warranties, affirmative and negative covenants, and events of default, including but not limited to those providing for the acceleration of amounts owed under the AR Facility if, among other things, Receivables LLC fails to pay interest or other amounts due, Receivables LLC becomes insolvent or subject to bankruptcy proceedings or certain judicial judgments or breaches of certain representations and warranties and covenants. The AR Facility will terminate at the earlier of (i) April 28, 2026, (ii) the date on which the termination date is declared or deemed to have occurred upon the exercise of remedies by the administrative agent, or (iii) the date that is 30 days after notice by Receivables LLC. Subject to the consent of the administrative agent and the lenders, Receivables LLC may, 30 days prior to each anniversary date of the receivables financing agreement, extend the AR Facility in one-year increments. Term Loan Credit Agreement Activity On January 9, 2023, we repaid the remaining $ 100 million principal amount outstanding under a term loan credit agreement, dated July 6, 2022, that was due to mature on August 30, 2023 . Following such repayment, no borrowings remained outstanding and the term loan credit agreement ceased to be in effect. On January 24, 2023, we entered into an unsecured term loan credit agreement with a commitment equal to an aggregate principal amount of $ 625 million. The term loan credit agreement had a maturity date of February 28, 2024. On January 27, 2023, we borrowed $ 500 million and on February 27, 2023, we borrowed the remaining $ 125 million under the term loan credit agreement. The proceeds from the borrowings were used for general corporate purposes, including repayment of outstanding CP Notes. Loans under the term loan credit agreement bore interest at a rate per annum equal to SOFR calculated based on term SOFR for a one-month interest period as of a specified date, plus the SOFR Adjustment, plus a spread of 0.85 %. On May 11, 2023, we repaid the full $ 625 million aggregate principal amount outstanding under the term loan credit agreement. As a result of the repayment, no borrowings remained outstanding and the term loan credit agreement ceased to be in effect . On March 22, 2023 , we entered into an unsecured term loan credit agreement with a commitment equal to an aggregate principal amount of $ 150 million. The term loan credit agreement had a maturity date of April 30, 2024 . On March 23, 2023 , we borrowed $ 150 million under the term loan credit agreement. The proceeds from the borrowing were used for general corporate purposes, including repayment of outstanding CP Notes. Loans under the term loan credit agreement bore interest at a rate per annum equal to SOFR calculated based on term SOFR for a one-month interest period as of a specified date plus a spread of 0.95 %. On May 11, 2023, we repaid the full $ 150 million aggregate principal amount outstanding under the term loan credit agreement. As a result of the repayment, no borrowings remained outstanding and the term loan credit agreement ceased to be in effect. Fair Value of Long-Term Debt At June 30, 2023 and December 31, 2022, the estimated fair value of our long-term debt (including current maturities) totaled $ 12.085 billion and $ 10.398 billion, respectively, and the carrying amount totaled $ 12.822 billion and $ 11.228 billion, respectively. The fair value is estimated using observable market data, representing Level 2 valuations under accounting standards related to the determination of fair value.

Commitments And Contingencies

Commitments And Contingencies	6 Months Ended
	Jun. 30, 2023
Commitments And Contingencies [Abstract]
COMMITMENTS AND CONTINGENCIES	6. COMMITMENTS AND CONTINGENCIES Legal/Regulatory Proceedings See Note 2 for information regarding our base rate review and pending capital trackers. We are also involved in other legal and administrative proceedings in the normal course of business, the ultimate resolution of which, in the opinion of management, should not have a material effect upon our financial position, results of operations, or cash flows. See Notes 1 and 2 above and Note 7 to Financial Statements in our 2022 Form 10-K for additional information regarding our regulatory and legal proceedings, respectively. Leases As lessee, our leased assets primarily consist of our vehicle fleet and real estate leased for company offices and service centers. Our leases are accounted for as operating leases for GAAP purposes. At June 30, 2023, we had $ 4 million in GAAP operating leases that are treated as capital leas es (referred to as finance leases under current accounting literature) solely for rate-making purposes. We generally recognize operating lease costs on a straight-line basis over the lease term in operating expenses. We are not a lessor to any material lease contracts. See Note 7 to Financial Statements in our 2022 Form 10-K for additional information on leases. Sales and Use Tax Audits We are subject to sales and use tax audits in the normal course of business. Currently, the Texas State Comptroller’s office is conducting sales and use tax audits for audit periods January 2010 through June 2013, July 2013 through December 2017, and January 2018 through December 2022, respectively. No audit reports have been issued for these audits. While the outcome is uncertain, based on our analysis, we do not expect the ultimate resolution of these audits will have a material adverse effect on our financial position, results of operations, or cash flows.

Membership Interests

Membership Interests	6 Months Ended
	Jun. 30, 2023
Membership Interests [Abstract]
MEMBERSHIP INTERESTS	7. MEMBERSHIP INTERESTS Contributions We received cash capital contributions from our members of $ 115 million on July 27, 2023. In the six months ended June 30, 2023, we received the following cash capital contributions from our members: Receipt Dates Amounts February 13, 2023 $ 106 April 27, 2023 $ 115 Distributions The Sempra Order and our Limited Liability Company Agreement set forth various restrictions on distributions to our members. Among those restrictions is the commitment that we will make no distributions (other than contractual tax payments) to our members that would cause us to exceed the PUCT’s authorized debt-to-equity ratio. Our current authorized regulatory capital structure is 57.5 % debt to 42.5 % equity. The distribution restrictions also include the ability of a majority of our Disinterested Directors, or either of the two member directors designated by Texas Transmission, to limit distributions to the extent each determines it is necessary to meet expected future requirements of Oncor (including continuing compliance with the PUCT debt-to-equity ratio commitment). In addition, the distribution restrictions also require us to suspend dividends and other distributions (except for contractual tax payments) if the credit rating on our senior secured debt by any of the three major rating agencies falls below BBB (or the equivalent), unless otherwise allowed by the PUCT. At June 30, 2023, our regulatory capitalization was 56.1 % debt to 43.9 % equity and as a result we had $ 569 million available to distribute to our members. The PUCT has the authority to determine what types of debt and equity are included in a utility’s regulatory debt-to-equity ratio. For purposes of this ratio, debt is calculated as long-term debt including any finance leases plus unamortized gains on reacquired debt less unamortized issuance expenses, premiums and losses on reacquired debt. Equity is calculated as membership interests determined in accordance with GAAP, excluding accumulated other comprehensive loss and the effects of acquisition accounting from a 2007 transaction. On July 25, 2023, our board of directors declared a cash distribution of $ 149 million, which was paid to our members on July 26, 2023. In the six months ended June 30, 2023, our board of directors declared, and we paid, the following cash distributions to our members: Declaration Dates Payment Dates Amounts February 14, 2023 February 15, 2023 $ 106 April 25, 2023 April 26, 2023 $ 149 Membership Interests The following tables present the changes to membership interests during the three and six months ended June 30, 2023 and 2022, net of tax: Capital Accounts Accumulated Other Comprehensive Income (Loss) Total Membership Interests Balance at March 31, 2023 $ 13,727 $ ( 181 ) $ 13,546 Net income 200 - 200 Capital contributions 115 - 115 Distributions ( 149 ) - ( 149 ) Balance at June 30, 2023 $ 13,893 $ ( 181 ) $ 13,712 Balance at March 31, 2022 $ 12,913 $ ( 129 ) $ 12,784 Net income 229 - 229 Capital contributions 106 - 106 Distributions ( 106 ) - ( 106 ) Defined benefit pension plans - 1 1 Balance at June 30, 2022 $ 13,142 $ ( 128 ) $ 13,014 Capital Accounts Accumulated Other Comprehensive Income (Loss) Total Membership Interests Balance at December 31, 2022 $ 13,624 $ ( 162 ) $ 13,462 Net income 303 - 303 Capital contributions 221 - 221 Distributions ( 255 ) - ( 255 ) Net effects of cash flow hedges - 1 1 Defined benefit pension plans (a) - ( 20 ) ( 20 ) Balance at June 30, 2023 $ 13,893 $ ( 181 ) $ 13,712 Balance at December 31, 2021 $ 12,719 $ ( 131 ) $ 12,588 Net income 423 - 423 Capital contributions 212 - 212 Distributions ( 212 ) - ( 212 ) Net effects of cash flow hedges - 1 1 Defined benefit pension plans - 2 2 Balance at June 30, 2022 $ 13,142 $ ( 128 ) $ 13,014 ____________ (a) Includes a $ 20 million reclassification from regulatory assets related to employee retirement liabilities to other comprehensive income in the first quarter of 2023, recorded as a result of the final order in our comprehensive base rate review (PUCT Docket No. 53601). Accumulated Other Comprehensive Income (Loss) (AOCI) The following table presents the changes to AOCI for the six months ended June 30, 2023 and 2022, net of tax: Cash Flow Hedges – Interest Rate Swaps Defined Benefit Pension and OPEB Plans Total Accumulated Other Comprehensive Income (Loss) Balance at December 31, 2022 $ ( 34 ) $ ( 128 ) $ ( 162 ) Defined benefit pension plans (a) - ( 20 ) ( 20 ) Cash flow hedge amounts reclassified from AOCI and reported in interest expense and related charges (net of tax expense of $ 0 ) 1 - 1 Balance at June 30, 2023 $ ( 33 ) $ ( 148 ) $ ( 181 ) Balance at December 31, 2021 $ ( 36 ) $ ( 95 ) $ ( 131 ) Defined benefit pension plans - 2 2 Cash flow hedge amounts reclassified from AOCI and reported in interest expense and related charges (net of tax expense of $ 0 ) 1 - 1 Balance at June 30, 2022 $ ( 35 ) $ ( 93 ) $ ( 128 ) ____________ (a) Includes a $ 20 million reclassification from regulatory assets related to employee retirement liabilities to other comprehensive income in the first quarter of 2023, recorded as a result of the final order in our comprehensive base rate review (PUCT Docket No. 53601).

Pension And OPEB Plans

Pension And OPEB Plans	6 Months Ended
	Jun. 30, 2023
Pension And OPEB Plans [Abstract]
Pension And OPEB Plans	8. PENSION AND OPEB PLANS Pension Plans We sponsor the Oncor Retirement Plan and also have liabilities related to the Vistra Retirement Plan, both of which are qualified pension plans under Section 401(a) of the Internal Revenue Code of 1986, as amended, and are subject to the provisions of ERISA. Employees do not contribute to either plan. We also have a supplemental retirement plan for certain employees whose retirement benefits cannot be fully earned under the qualified retirement plans. See Note 9 to Financial Statements in our 2022 Form 10-K for additional information regarding pension plans. OPEB Plans We currently sponsor two OPEB plans. One plan covers our eligible current and future retirees whose services are 100 % attributed to the regulated business. The second plan covers retirees and eligible current and future retirees whose employment services were assigned to both Oncor (or a predecessor regulated utility business) and the non-regulated business of certain formerly affiliated companies, including Vistra. Vistra is solely responsible for its portion of the liability for retiree benefits related to those retirees. See Note 9 to Financial Statements in our 2022 Form 10-K for additional information. Pension and OPEB Costs Our net costs related to pension plans and the OPEB Plans for the three and six months ended June 30, 2023 and 2022, were comprised of the following: Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Components of net pension costs: Service cost $ 6 $ 8 $ 12 $ 16 Interest cost (a) 30 23 61 45 Expected return on assets (a) ( 32 ) ( 27 ) ( 64 ) ( 53 ) Amortization of net loss (a) - 8 1 16 Net pension costs 4 12 10 24 Net adjustments (b) 2 ( 1 ) 6 ( 2 ) Net pension costs recognized as operation and maintenance expense or other deductions $ 6 $ 11 $ 16 $ 22 Components of net OPEB costs: Service cost $ 1 $ 1 $ 2 $ 2 Interest cost (a) 8 6 16 12 Expected return on assets (a) ( 2 ) ( 2 ) ( 4 ) ( 4 ) Amortization of net loss (a) ( 8 ) - ( 16 ) - Net OPEB costs ( 1 ) 5 ( 2 ) 10 Net adjustments (b) 5 3 14 5 Net OPEB costs recognized as operation and maintenance expense or other deductions $ 4 $ 8 $ 12 $ 15 ___________ (a) The components of net costs other than service cost component are recorded in “Other deductions and (income) – net” in Condensed Statements of Consolidated Income. (b) Net adjustments include amounts principally deferred as property, plant and equipment, regulatory assets or regulatory liabilities. The discount rates reflected in net pension and OPEB costs in 2023 are 5.19 %, 5.19 % and 5.11 % for the Oncor Retirement Plan, the Vistra Retirement Plan and the OPEB Plans, respectively. The expected return on pension and OPEB plan assets reflected in the 2023 cost amounts are 6.05 %, 6.47 % and 6.94 % for the Oncor Retirement Plan, the Vistra Retirement Plan and the OPEB Plans, respectively. Pension Plans and OPEB Plans Cash Contributions We made cash contributions to the pension plans and OPEB Plans of $ 2 million and $ 14 million, respectively, during the six months ended June 30, 2023. Based on applicable minimum funding requirements and the latest actuarial projections, our future fundings for the pension plans and the OPEB Plans are expected to total $ 3 million and $ 10 million, respectively, during the remainder of 2023 and approximately $ 466 million and $ 128 million, respectively, in the five-year period from 2023 to 2027. We may also elect to make additional discretionary contributions based on market and/or business conditions.

Related-Party Transactions

Related-Party Transactions	6 Months Ended
	Jun. 30, 2023
Related-Party Transactions [Abstract]
RELATED-PARTY TRANSACTIONS	9. RELATED-PARTY TRANSACTIONS The following represents our significant related-party transactions and related matters.  We are not a member of another entity’s consolidated tax group, but our owners’ federal income tax returns include their portion of our results. Under the terms of a tax sharing agreement among us, Oncor Holdings, Texas Transmission and STH, we are generally obligated to make payments to our owners, pro rata in accordance with their respective membership interests, in an aggregate amount that is substantially equal to the amount of federal income taxes that we would have been required to pay if we were filing our own corporate income tax return. STH will file a combined Texas margin tax return which includes our results and our share of Texas margin tax payments, which are accounted for as income taxes and calculated as if we were filing our own return. See discussion in Note 1 to Financial Statements in our 2022 Form 10-K under “Provision in Lieu of Income Taxes.” Under the “in lieu of” tax concept, all in lieu of tax assets and tax liabilities represent amounts that will eventually be settled with our members. In the event such amounts are not paid under the tax sharing agreement, it is probable that these regulatory amounts will continue to be included in Oncor’s rate setting processes. Amounts payable to (receivable from) members related to income taxes under the tax sharing agreement and reported on our balance sheet consisted of the following: At June 30, 2023 At December 31, 2022 STH Texas Transmission Total STH Texas Transmission Total Federal income taxes payable (receivable) $ ( 1 ) $ - $ ( 1 ) $ 14 $ 4 $ 18 Texas margin tax payable 16 - 16 27 - 27 Net payable (receivable) $ 15 $ - $ 15 $ 41 $ 4 $ 45 Cash payments made to members related to income taxes in the six months ended June 30, 2023 and 2022 consisted of the following: Six Months Ended June 30, 2023 Six Months Ended June 30, 2022 STH Texas Transmission Total STH Texas Transmission Total Federal income taxes $ 35 $ 8 $ 43 $ 41 $ 10 $ 51 Texas margin tax 25 - 25 22 - 22 Total payments $ 60 $ 8 $ 68 $ 63 $ 10 $ 73 See Note 7 for information regarding cash capital contributions from and distributions to members.  Sempra owns an indirect 50 percent interest in the parent of Sharyland. Sharyland provided wholesale transmission service to us in the amount of $ 4 million during each of the three months ended June 30, 2023 and 2022, and $ 8 million and $ 7 million in the six months ended June 30, 2023 and 2022, respectively, at rates set pursuant to PUCT-approved tariffs. Pursuant to an operation agreement between us and Sharyland that was entered into in connection with a PUCT order, we provide Sharyland with substation monitoring and switching services. These services totaled less than $ 1 million in each of the six months ended June 30, 2023 and 2022.

Supplementary Financial Informa

Supplementary Financial Information	6 Months Ended
	Jun. 30, 2023
Supplementary Financial Information [Abstract]
SUPPLEMENTARY FINANCIAL INFORMATION	10. SUPPLEMENTARY FINANCIAL INFORMATION Other Deductions and (Income) Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Professional fees $ 3 $ 1 $ 5 $ 3 Recoverable Pension and OPEB – non-service costs 8 14 23 27 Non-recoverable pension and OPEB ( 1 ) - ( 1 ) - Gain on sale of non-utility property - ( 11 ) - ( 11 ) AFUDC – equity income ( 12 ) ( 8 ) ( 23 ) ( 14 ) Interest and investment loss (income) – net ( 3 ) 2 ( 4 ) 4 Other - 1 2 1 Total other deductions and (income) – net $ ( 5 ) $ ( 1 ) $ 2 $ 10 Interest Expense and Related Charges Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Interest $ 137 $ 109 $ 263 $ 218 Amortization of discount, premium and debt issuance costs 3 3 6 5 Less AFUDC – capitalized interest portion ( 7 ) ( 4 ) ( 13 ) ( 7 ) Total interest expense and related charges $ 133 $ 108 $ 256 $ 216 Trade Accounts and Other Receivables Trade accounts and other receivables reported on our balance sheet consisted of the following: At June 30, At December 31, 2023 2022 Gross trade accounts and other receivables $ 979 $ 897 Allowance for uncollectible accounts ( 13 ) ( 13 ) Trade accounts receivable – net $ 966 $ 884 At June 30 , 2023, REP subsidiaries of our two largest customers collectively represented 21 % and 19 %, respectively, of the trade accounts receivable balance. At December 31, 2022, REP subsidiaries of our two largest customers represented 23 % and 20 %, respectively, of the trade accounts receivable balance. Under a PUCT rule relating to the Certification of Retail Electric Providers, write-offs of uncollectible amounts owed by REPs are deferred as a regulatory asset. Investments and Other Property Investments and other property reported on our balance sheet consisted of the following: At June 30, At December 31, 2023 2022 Assets related to employee benefit plans $ 122 $ 123 Non-utility property – land 12 12 Other 2 2 Total investments and other property $ 136 $ 137 Consolidated VIE We have a controlling financial interest that has been identified as a VIE under ASC 810 in Receivables LLC, which has entered into the AR Facility. See Note 5 for more information on AR Facility. The summarized financial information for our consolidated VIE consisted of the following: At June 30, 2023 Assets Cash and cash equivalents $ 4 Trade accounts receivable – net 588 Total assets $ 592 Liabilities Long-term debt $ 325 Total Liabilities $ 325 Property, Plant and Equipment Property, plant and equipment – net reported on our balance sheet consisted of the following: Composite Depreciation Rate/ At June 30, At December 31, Average Life of Depreciable Plant at June 30, 2023 (a) 2023 2022 Assets in service: Distribution (b) 2.7 % / 36.5 years $ 17,985 $ 17,226 Transmission (c) 2.4 % / 42.4 years 14,372 13,874 Other assets 7.4 % / 13.5 years 2,108 2,156 Total 34,465 33,256 Less accumulated depreciation 9,170 9,054 Net of accumulated depreciation 25,295 24,202 Construction work in progress 1,188 953 Held for future use 48 48 Property, plant and equipment – net $ 26,531 $ 25,203 ____________ (a) Reflects depreciation rates and average lives of depreciable plant in the final order in our comprehensive base rate review (PUCT Docket No. 53601) that went into effect on May 1, 2023. (b) Includes a $ 30 million write-off in the first quarter of 2023 of previously capitalized distribution assets in property, plant and equipment to reflect the PUCT’s disallowance from rate base of certain employee benefit/compensation expenses in the final order in our comprehensive base rate review. See Note 2 for more information on the base rate review. (c) Includes a $ 25 million write-off in the first quarter of 2023 of previously capitalized transmission assets in property, plant and equipment to reflect the PUCT’s disallowance from rate base of certain employee benefit/compensation expenses in the final order in our comprehensive base rate review. See Note 2 for more information on the base rate review. Intangible Assets Intangible assets (other than goodwill) reported on our balance sheet as part of property, plant and equipment consisted of the following: At June 30, 2023 At December 31, 2022 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Net Amount Amortization Net Identifiable intangible assets subject to amortization: Land easements $ 667 $ 124 $ 543 $ 662 $ 122 $ 540 Capitalized software 1,211 461 750 1,183 441 742 Total $ 1,878 $ 585 $ 1,293 $ 1,845 $ 563 $ 1,282 A ggregate amortization expense for intangible assets totaled $ 24 million and $ 19 million for the three months ended June 30, 2023 and 2022, respectively, and $ 46 million and $ 38 million for the six months ended June 30, 2023 and 2022, respectively. The estimated annual amortization expense for the five-year period from 2023 to 2027, based on rates in effect at June 30, 2023, is as follows: Year Amortization Expense (a) 2023 $ 99 2024 $ 105 2025 $ 105 2026 $ 105 2027 $ 105 ____________ (a) Amortization rates and average lives of depreciable intangible assets, reflected in the final order in our comprehensive base rate review (PUCT Docket No. 53601) that went into effect on May 1, 2023. Operating Lease and Other Obligations Operating lease and other obligations reported on our balance sheet consisted of the following: At June 30, At December 31, 2023 2022 Operating lease liabilities $ 122 $ 131 Investment tax credits 3 3 Customer advances for construction – noncurrent 62 71 Other 104 70 Total operating lease and other obligations $ 291 $ 275 Supplemental Cash Flow Information Six Months Ended June 30, 2023 2022 Cash payments related to: Interest $ 245 $ 213 Less capitalized interest ( 13 ) ( 7 ) Interest payments (net of amounts capitalized) $ 232 $ 206 Amount in lieu of income taxes (Note 9): Federal $ 43 $ 51 State 25 22 Total payments in lieu of income taxes $ 68 $ 73 Noncash investing activities: Construction expenditures financed through accounts payable (a) $ 244 $ 168 ______________ (a) Represents end-of-period accruals .

Business And Significant Acco_2

Business And Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2023
Business And Significant Accounting Policies [Abstract]
Description Of Business	Description of Business References in this report to “we,” “our,” “us” and “the company” are to Oncor and/or its subsidiaries as apparent in the context. See “Glossary” for the definition of terms and abbreviations. We are a regulated electricity transmission and distribution company that provides the essential service of delivering electricity safely, reliably and economically to end-use consumers through our electrical systems, as well as providing transmission grid connections to merchant generation facilities and interconnections to other transmission grids in Texas. Our transmission and distribution rates are regulated by the PUCT and certain cities, and in certain limited instances, by the FERC. We are not a seller of electricity, nor do we purchase electricity for resale. We are a direct, majority-owned subsidiary of Oncor Holdings, which is indirectly and wholly owned by Sempra. Oncor Holdings owns 80.25 % of our membership interests and Texas Transmission owns 19.75 % of our membership interests. We are managed as an integrated business; consequently, there are no separate reportable business segments.
Ring-Fencing Measures	Ring-Fencing Measures Since 2007, various ring-fencing measures have been taken to enhance our credit quality and the separateness between the Oncor Ring-Fenced Entities and entities with ownership interests in Oncor or Oncor Holdings. These ring-fencing measures serve to mitigate the Oncor Ring-Fenced Entities’ credit exposure to owners of Oncor and Oncor Holdings, and to reduce the risk that the assets and liabilities of the Oncor Ring-Fenced Entities would be substantively consolidated with the assets and liabilities of any direct or indirect owners of Oncor and Oncor Holdings in connection with a bankruptcy of any such entities. These measures include the November 2008 sale of 19.75 % of Oncor’s equity interests to Texas Transmission. In March 2018, Sempra indirectly acquired Oncor Holdings after obtaining various approvals, including PUCT approval through the Sempra Order, which outlines certain ring-fencing measures, governance mechanisms and restrictions that apply after the Sempra Acquisition. As a result of these ring-fencing measures, Sempra does not control Oncor, and the ring-fencing measures limit Sempra’s ability to direct the management, policies and operations of Oncor, including the deployment or disposition of Oncor’s assets, declarations of dividends, strategic planning and other important corporate issues and actions. Our Limited Liability Company Agreement requires PUCT approval of certain revisions to the Limited Liability Company Agreement, including, among other things, governance structure and other various ring-fencing measures. None of the assets of the Oncor Ring-Fenced Entities are available to satisfy the debt or obligations of any Sempra entity or any other direct or indirect owner of Oncor or Oncor Holdings. The assets and liabilities of the Oncor Ring-Fenced Entities are separate and distinct from those of any Sempra entities and any other direct or indirect owner of Oncor or Oncor Holdings. We do not bear any liability for debt or contractual obligations of Sempra and its affiliates or any other direct or indirect owner of Oncor or Oncor Holdings, and vice versa. Accordingly, our operations are conducted, and our cash flows are managed, independently from Sempra and its affiliates and any other direct or indirect owner of Oncor or Oncor Holdings. Oncor is a limited liability company governed by a board of directors, not its members. The Sempra Order and our Limited Liability Company Agreement require that the board of directors of Oncor consist of 13 members, constituted as follows:  seven Disinterested Directors, who (i) shall be independent directors in all material respects under the rules of the New York Stock Exchange in relation to Sempra or its subsidiaries and affiliated entities and any entity with a direct or indirect ownership interest in Oncor or Oncor Holdings, and (ii) shall have no material relationship with Sempra or its subsidiaries or affiliated entities or any entity with a direct or indirect ownership interest in Oncor or Oncor Holdings, currently or within the previous ten years ;  two members designated by Sempra (through Oncor Holdings);  two members designated by Texas Transmission; and  two current or former officers of Oncor (each, an Oncor Officer Director), currently Robert S. Shapard and E. Allen Nye, Jr., who are our Chairman of our board of directors and Chief Executive, respectively. Until March 9, 2028, in order for a current or former officer of Oncor to be eligible to serve as an Oncor Officer Director, the officer cannot have worked for Sempra or any of its subsidiaries or affiliated entities (excluding Oncor Holdings and Oncor) or any other entity with a direct or indirect ownership interest in Oncor or Oncor Holdings in the ten-year period prior to the date on which the officer first became employed by Oncor. Oncor Holdings, at the direction of STIH, has the right to nominate and/or seek the removal of the Oncor Officer Directors, subject to approval by a majority of the Oncor board of directors. In addition, the Sempra Order provides that Oncor’s board of directors cannot be overruled by the board of directors of Sempra or any of its subsidiaries on dividend policy, the issuance of dividends or other distributions (except for contractual tax payments), debt issuance, capital expenditures, operation and maintenance expenditures, management and service fees, and appointment or removal of members of the board of directors, provided that certain actions may also require the additional approval of the Oncor Holdings board of directors. The Sempra Order also provides that any changes to the size, composition, structure or rights of the board of directors must first be approved by the PUCT. In addition, if Sempra acquires Texas Transmission’s interest in Oncor, the two board of director positions on Oncor’s board of directors that Texas Transmission is entitled to appoint will be eliminated and the size of Oncor’s board of directors will be reduced by two . Additional regulatory commitments, governance mechanisms and restrictions provided in the Sempra Order and our Limited Liability Company Agreement to ring-fence Oncor from its owners include, among others:  A majority of the Disinterested Directors of Oncor and the directors designated by Texas Transmission that are present and voting (of which at least one must be present and voting) must approve any annual or multi-year budget if the aggregate amount of capital expenditures or operating and maintenance expenditures in such budget is more than a 10 % increase or decrease from the corresponding amounts of such expenditures in the budget for the preceding fiscal year or multi-year period, as applicable;  Oncor may not pay any dividends or make any other distributions (except for contractual tax payments) if a majority of its Disinterested Directors or either of the two directors appointed by Texas Transmission determines that it is in the best interests of Oncor to retain such amounts to meet expected future requirements;  At all times, Oncor will remain in compliance with the debt-to-equity ratio established by the PUCT from time to time for ratemaking purposes, and Oncor will not pay dividends or other distributions (except for contractual tax payments) if such payment would cause its debt-to-equity ratio to exceed the debt-to-equity ratio approved by the PUCT;  If the credit rating on Oncor’s senior secured debt by any of the three major rating agencies falls below BBB (or the equivalent), Oncor will suspend dividends and other distributions (except for contractual tax payments), unless otherwise allowed by the PUCT;  Without the prior approval of the PUCT, neither Sempra nor any of its affiliates (excluding Oncor) will incur, guaranty or pledge assets in respect of any indebtedness that is dependent on the revenues of Oncor in more than a proportionate degree than the other revenues of Sempra or on the membership interests of Oncor, and there will be no debt at STH or STIH at any time following the closing of the Sempra Acquisition;  Neither Oncor nor Oncor Holdings will lend money to, borrow money from or share credit facilities with Sempra or any of its affiliates (other than Oncor subsidiaries), or any entity with a direct or indirect ownership interest in Oncor or Oncor Holdings; and  There must be maintained certain “separateness measures” that reinforce the legal and financial separation of Oncor from its owners, including a requirement that dealings between Oncor, Oncor Holdings and their subsidiaries with Sempra, any of Sempra’s other affiliates or any entity with a direct or indirect ownership interest in Oncor or Oncor Holdings, must be on an arm’s-length basis, limitations on affiliate transactions, separate recordkeeping requirements and a prohibition on Sempra or its affiliates or any entity with a direct or indirect ownership interest in Oncor or Oncor Holdings pledging Oncor assets or membership interests for any entity other than Oncor.
Basis Of Presentation	Basis of Presentation These unaudited condensed consolidated financial statements should be read in conjunction with the audited financial statements and related notes included in our 2022 Form 10-K. In the opinion of Oncor management, all adjustments (consisting of normal recurring accruals) necessary for a fair presentation of the results of operations and financial position have been made. We have evaluated all subsequent events through the date the financial statements were issued. All appropriate intercompany items and transactions have been eliminated in consolidation. The results of operations for an interim period may not give a true indication of results for a full year due to seasonality or other factors, such as changes in the rates we are authorized to charge customers. We also apply the guidance of ASC 810, Consolidations, or ASC 810, to determine when an entity that is insufficiently capitalized or not controlled through its voting interests, referred to as a VIE, should be consolidated. Our consolidated financial statements have been prepared in accordance with GAAP governing rate-regulated operations. All dollar amounts in the financial statements and tables in the notes are stated in millions of U.S. dollars unless otherwise indicated.
Use Of Estimates	Use of Estimates Preparation of our financial statements requires management to make 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. 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. No material adjustments were made to previous estimates or assumptions during the current period.
Revenue Recognition	Revenue Recognition Oncor’s revenue is billed under tariffs approved by the PUCT and the majority of revenues are related to providing electric delivery service to consumers. Tariff rates are designed to recover the cost of providing electric delivery service including a reasonable rate of return on invested capital. Revenues are generally recognized when the underlying service has been provided in an amount prescribed by the related tariff. See Note 3 for additional information regarding revenues.
Interest Rate Derivatives, Hedge Accounting and Mark-to-Market Accounting	Interest Rate Derivatives, Hedge Accounting and Mark-to-Market Accounting We are exposed to interest rates primarily as a result of our current and expected use of financing. We may, from time to time, utilize interest rate derivative instruments typically designated as cash flow hedges, to lock in interest rates in anticipation of future financings. We may designate an interest rate derivative instrument as a cash flow hedge if it effectively converts anticipated cash flows associated with interest payments to a fixed dollar amount. Designating interest rate derivative instruments as cash flow hedges is dependent on the business context in which the instrument is being used, the effectiveness of the instrument in offsetting the risk that the future cash flows of interest payments may vary, and other criteria. In accounting for cash flow hedges, derivative assets and liabilities are recorded on the balance sheet at fair value with an offset to other comprehensive income (loss). Amounts remain in accumulated other comprehensive income (loss) and are reclassified into net income as the interest expense on the related debt affects net income. T he fair value of an interest rate derivative instrument is recognized on the balance sheet as a derivative asset or liability and changes in the fair value are recognized in net income if the criteria for cash flow hedge accounting are not met or if the instrument is not designated as a cash flow hedge. This recognition is referred to as “mark-to-market” accounting.
Impairment Of Long-Lived Assets And Goodwill	Impairment of Long-Lived Assets and Goodwill We evaluate long-lived assets (including intangible assets with finite lives) for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. We also evaluate goodwill for impairment annually on October 1 and whenever events or changes in circumstances indicate that an impairment may exist. The determination of the existence of these and other indications of impairment involves judgments that are subjective in nature and may require the use of estimates in forecasting future results and cash flows. For our annual goodwill impairment testing, we generally have the option to directly perform a quantitative assessment or first make a qualitative assessment of whether it is more likely than not that our enterprise fair value is less than our enterprise carrying value before applying the quantitative assessment. If we elect to perform the qualitative assessment, we evaluate relevant events and circumstances, including but not limited to, macroeconomic conditions, industry and market considerations, cost factors and our overall financial performance. If, after assessing these qualitative factors, we determine that it is more-likely-than-not that our estimated enterprise fair value is less than our enterprise carrying book value, then we perform a quantitative assessment. If, after performing the quantitative assessment, we determine that goodwill is impaired, we record the amount of goodwill impairment as the excess of enterprise carrying book value over estimated enterprise fair value, not to exceed the carrying amount of goodwill.
Cash, Cash Equivalents and Restricted Cash	Cash, Cash Equivalents and Restricted Cash For purposes of reporting cash and cash equivalents, highly liquid investments with original maturities of three months or less at the date of purchase are considered to be cash equivalents. The following table provides a reconciliation of cash, cash equivalents and restricted cash reported on the unaudited condensed consolidated balance sheets to the sum of such amounts reported on the unaudited condensed statements of consolidated cash flows: At June 30, At December 31, 2023 2022 Cash, cash equivalents and restricted cash Cash and cash equivalents $ 28 $ 10 Restricted cash, current (a) 23 16 Restricted cash, noncurrent (a) 65 72 Total cash, cash equivalents and restricted cash on the condensed statements of consolidated cash flows $ 116 $ 98 ____________ (a) Restricted cash represents amounts deposited with Oncor for customer advances for construction that are subject to probable return in accordance with PUCT rules, ERCOT requirements or our tariffs relating to generation interconnection and construction and/or extension of electric delivery system facilities. We maintain these amounts in a separate escrow account.
Contingencies	Contingencies Our financial results may be affected by judgments and estimates related to contingencies. For loss contingencies, we accrue the loss if an event has occurred on or before the balance sheet date, and:  information available through the date we file our financial statements indicates it is probable that a loss has been incurred, given the likelihood of uncertain future events; and  the amount of the loss can be reasonably estimated. We do not accrue contingencies that might result in gains. We continuously assess contingencies for litigation claims, environmental remediation and other events. See Note 6 for a discussion of contingencies.

Business And Significant Acco_3

Business And Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2023
Business And Significant Accounting Policies [Abstract]
Schedule Of Cash, Cash Equivalents And Restricted Cash	The following table provides a reconciliation of cash, cash equivalents and restricted cash reported on the unaudited condensed consolidated balance sheets to the sum of such amounts reported on the unaudited condensed statements of consolidated cash flows: At June 30, At December 31, 2023 2022 Cash, cash equivalents and restricted cash Cash and cash equivalents $ 28 $ 10 Restricted cash, current (a) 23 16 Restricted cash, noncurrent (a) 65 72 Total cash, cash equivalents and restricted cash on the condensed statements of consolidated cash flows $ 116 $ 98 ____________ (a) Restricted cash represents amounts deposited with Oncor for customer advances for construction that are subject to probable return in accordance with PUCT rules, ERCOT requirements or our tariffs relating to generation interconnection and construction and/or extension of electric delivery system facilities. We maintain these amounts in a separate escrow account.

Regulatory Matters (Tables)

Regulatory Matters (Tables)	6 Months Ended
	Jun. 30, 2023
Regulatory Matters [Abstract]
Schedule of Interim Rate Update Applications	Filing Type PUCT Docket No. Filed Requested Effective Date Requested Annual Revenue Impact DCRF 55190 (a) June 2023 September 2023 (a) $ 153 TCOS 55282 (a) July 2023 September 2023 (a) $ 42 ____________ (a) Pending PUCT approval.
Components Of Regulatory Assets And Liabilities	Remaining Rate Recovery/Amortization Period in Effect At June 30, 2023 At June 30, 2023 At December 31, 2022 Regulatory assets: Employee retirement liability (a)(b)(c)(d) To be determined $ 154 $ 157 Employee retirement costs being amortized 5 years 109 158 Employee retirement costs incurred since the last base rate review periods (b) To be determined 79 91 Self-insurance reserve (primarily storm recovery costs) being amortized 5 years 513 181 Self-insurance reserve incurred since the last base rate review periods (primarily storm related) (b) To be determined 372 571 Debt reacquisition costs Lives of related debt 12 15 Under-recovered AMS costs 5 years 96 107 Energy efficiency program performance bonus (a) Approximately 1 year 14 28 Wholesale distribution substation service being amortized 5 years 73 - Wholesale distribution substation service incurred since the last base rate review periods (b) To be determined 28 97 Expenses related to COVID-19 being amortized 5 years 34 - Unrecovered expenses related to COVID-19 incurred since the last base rate review periods (b) To be determined 2 37 Recoverable deferred income taxes Various 31 25 Uncollectible payments from REPs being amortized 5 years 8 - Uncollectible payments from REPs incurred since the last base rate review periods (b) To be determined - 8 Under-recovered wholesale transmission service expense (a) Approximately 1 year 50 - Other regulatory assets Various 32 27 Total regulatory assets 1,607 1,502 Regulatory liabilities: Estimated net removal costs Lives of related assets 1,483 1,431 Excess deferred taxes Primarily over lives of related assets 1,343 1,375 Over-recovered wholesale transmission service expense (a) Approximately 1 year - 101 Unamortized gain on reacquisition of debt Lives of related debt 25 25 Employee retirement costs over-recovered being refunded 5 years 25 - Employee retirement costs over-recovered since the last base rate review periods (b) To be determined 34 60 Other regulatory liabilities Various 28 22 Total regulatory liabilities 2,938 3,014 Net regulatory assets (liabilities) $ ( 1,331 ) $ ( 1,512 ) ____________ (a) Not earning a return in the regulatory rate-setting process. (b) Recovery/refund is specifically authorized by statute or by the PUCT, subject to reasonableness review. (c) Represents unfunded liabilities recorded in accordance with pension and OPEB accounting standards. (d) Reflects a $ 20 million reclassification related to employee retirement liabilities from regulatory assets to other comprehensive income in the first quarter of 2023, recorded as a result of the final order in our comprehensive base rate review (PUCT Docket No. 53601).

Revenues (Tables)

Revenues (Tables)	6 Months Ended
	Jun. 30, 2023
Revenues [Abstract]
Disaggregation Of Revenues	The following table reflects electric delivery revenues disaggregated by tariff: Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Operating revenues Revenues contributing to earnings: Distribution base revenues $ 614 $ 600 $ 1,165 $ 1,178 Transmission base revenues (TCOS revenues): Billed to third-party wholesale customers 238 237 488 470 Billed to REPs serving Oncor distribution customers, through TCRF 133 132 274 262 Total transmission base revenues 371 369 762 732 Other miscellaneous revenues 25 22 42 40 Total revenues contributing to earnings 1,010 991 1,969 1,950 Revenues collected for pass-through expenses: TCRF – third-party wholesale transmission service 322 290 643 571 EECRF and other 11 12 23 21 Total revenues collected for pass-through expenses 333 302 666 592 Total operating revenues $ 1,343 $ 1,293 $ 2,635 $ 2,542

Short-Term Borrowings (Tables)

Short-Term Borrowings (Tables)	6 Months Ended
	Jun. 30, 2023
Short-Term Borrowings [Abstract]
Schedule Of Short-Term Borrowings	At June 30, At December 31, 2023 2022 Total credit facility borrowing capacity $ 2,000 $ 2,000 Credit facility outstanding borrowings - - Commercial paper outstanding (a) - ( 198 ) Letters of credit outstanding - - Available unused credit $ 2,000 $ 1,802 ____________ (a) The weighted average interest rate for commercial paper was 4.58 % at December 31, 2022. All outstanding CP Notes at December 31, 2022 had maturity dates of less than one year .

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Jun. 30, 2023
Long-Term Debt [Abstract]
Schedule Of Long-Term Debt	At June 30, At December 31, 2023 2022 Fixed Rate Secured: 2.75 % Senior Notes due June 1, 2024 $ 500 $ 500 2.95 % Senior Notes due April 1, 2025 350 350 0.55 % Senior Notes due October 1, 2025 450 450 3.86 % Senior Notes, Series A, due December 3, 2025 174 174 3.86 % Senior Notes, Series B, due January 14, 2026 38 38 5.50 % Senior Notes, Series C, due May 1, 2026 200 - 4.30 % Senior Notes due May 15, 2028 600 - 3.70 % Senior Notes due November 15, 2028 650 650 5.75 % Senior Notes due March 15, 2029 318 318 2.75 % Senior Notes due May 15, 2030 700 700 5.34 % Senior Notes, Series D, due May 1, 2031 100 - 7.00 % Senior Notes due May 1, 2032 494 494 4.15 % Senior Notes due June 1, 2032 400 400 4.55 % Senior Notes due September 15, 2032 700 700 7.25 % Senior Notes due January 15, 2033 323 323 5.45 % Senior Notes, Series E, due May 1, 2036 100 - 7.50 % Senior Notes due September 1, 2038 300 300 5.25 % Senior Notes due September 30, 2040 475 475 4.55 % Senior Notes due December 1, 2041 400 400 5.30 % Senior Notes due June 1, 2042 348 348 3.75 % Senior Notes due April 1, 2045 550 550 3.80 % Senior Notes due September 30, 2047 325 325 4.10 % Senior Notes due November 15, 2048 450 450 3.80 % Senior Notes due June 1, 2049 500 500 3.10 % Senior Notes due September 15, 2049 700 700 3.70 % Senior Notes due May 15, 2050 400 400 2.70 % Senior Notes due November 15, 2051 500 500 4.60 % Senior Notes due June 1, 2052 400 400 4.95 % Senior Notes due September 15, 2052 900 500 5.35 % Senior Notes due October 1, 2052 300 300 Fixed rate secured long-term debt 12,645 11,245 Variable Rate Secured: AR Facility due April 28, 2026 325 - Variable Rate Unsecured: Term loan credit agreement due August 30, 2023 - 100 Total long-term debt 12,970 11,345 Unamortized discount, premium and debt issuance costs ( 147 ) ( 117 ) Less amount due currently ( 500 ) ( 100 ) Long-term debt, less amounts due currently $ 12,323 $ 11,128

Membership Interests (Tables)

Membership Interests (Tables)	6 Months Ended
	Jun. 30, 2023
Membership Interests [Abstract]
Schedule Of Cash Capital Contributions	Receipt Dates Amounts February 13, 2023 $ 106 April 27, 2023 $ 115
Schedule Of Distributions Paid	Declaration Dates Payment Dates Amounts February 14, 2023 February 15, 2023 $ 106 April 25, 2023 April 26, 2023 $ 149
Schedule Of Changes To Membership Interests	Capital Accounts Accumulated Other Comprehensive Income (Loss) Total Membership Interests Balance at March 31, 2023 $ 13,727 $ ( 181 ) $ 13,546 Net income 200 - 200 Capital contributions 115 - 115 Distributions ( 149 ) - ( 149 ) Balance at June 30, 2023 $ 13,893 $ ( 181 ) $ 13,712 Balance at March 31, 2022 $ 12,913 $ ( 129 ) $ 12,784 Net income 229 - 229 Capital contributions 106 - 106 Distributions ( 106 ) - ( 106 ) Defined benefit pension plans - 1 1 Balance at June 30, 2022 $ 13,142 $ ( 128 ) $ 13,014 Capital Accounts Accumulated Other Comprehensive Income (Loss) Total Membership Interests Balance at December 31, 2022 $ 13,624 $ ( 162 ) $ 13,462 Net income 303 - 303 Capital contributions 221 - 221 Distributions ( 255 ) - ( 255 ) Net effects of cash flow hedges - 1 1 Defined benefit pension plans (a) - ( 20 ) ( 20 ) Balance at June 30, 2023 $ 13,893 $ ( 181 ) $ 13,712 Balance at December 31, 2021 $ 12,719 $ ( 131 ) $ 12,588 Net income 423 - 423 Capital contributions 212 - 212 Distributions ( 212 ) - ( 212 ) Net effects of cash flow hedges - 1 1 Defined benefit pension plans - 2 2 Balance at June 30, 2022 $ 13,142 $ ( 128 ) $ 13,014 ____________ (a) Includes a $ 20 million reclassification from regulatory assets related to employee retirement liabilities to other comprehensive income in the first quarter of 2023, recorded as a result of the final order in our comprehensive base rate review (PUCT Docket No. 53601).
Schedule Of Changes To Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedges – Interest Rate Swaps Defined Benefit Pension and OPEB Plans Total Accumulated Other Comprehensive Income (Loss) Balance at December 31, 2022 $ ( 34 ) $ ( 128 ) $ ( 162 ) Defined benefit pension plans (a) - ( 20 ) ( 20 ) Cash flow hedge amounts reclassified from AOCI and reported in interest expense and related charges (net of tax expense of $ 0 ) 1 - 1 Balance at June 30, 2023 $ ( 33 ) $ ( 148 ) $ ( 181 ) Balance at December 31, 2021 $ ( 36 ) $ ( 95 ) $ ( 131 ) Defined benefit pension plans - 2 2 Cash flow hedge amounts reclassified from AOCI and reported in interest expense and related charges (net of tax expense of $ 0 ) 1 - 1 Balance at June 30, 2022 $ ( 35 ) $ ( 93 ) $ ( 128 ) ____________ (a) Includes a $ 20 million reclassification from regulatory assets related to employee retirement liabilities to other comprehensive income in the first quarter of 2023, recorded as a result of the final order in our comprehensive base rate review (PUCT Docket No. 53601).

Pension And OPEB Plans (Tables)

Pension And OPEB Plans (Tables)	6 Months Ended
	Jun. 30, 2023
Pension And OPEB Plans [Abstract]
Schedule Of Pension And OPEB Plan Costs	Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Components of net pension costs: Service cost $ 6 $ 8 $ 12 $ 16 Interest cost (a) 30 23 61 45 Expected return on assets (a) ( 32 ) ( 27 ) ( 64 ) ( 53 ) Amortization of net loss (a) - 8 1 16 Net pension costs 4 12 10 24 Net adjustments (b) 2 ( 1 ) 6 ( 2 ) Net pension costs recognized as operation and maintenance expense or other deductions $ 6 $ 11 $ 16 $ 22 Components of net OPEB costs: Service cost $ 1 $ 1 $ 2 $ 2 Interest cost (a) 8 6 16 12 Expected return on assets (a) ( 2 ) ( 2 ) ( 4 ) ( 4 ) Amortization of net loss (a) ( 8 ) - ( 16 ) - Net OPEB costs ( 1 ) 5 ( 2 ) 10 Net adjustments (b) 5 3 14 5 Net OPEB costs recognized as operation and maintenance expense or other deductions $ 4 $ 8 $ 12 $ 15 ___________ (a) The components of net costs other than service cost component are recorded in “Other deductions and (income) – net” in Condensed Statements of Consolidated Income. (b) Net adjustments include amounts principally deferred as property, plant and equipment, regulatory assets or regulatory liabilities.

Related-Party Transactions (Tab

Related-Party Transactions (Tables)	6 Months Ended
	Jun. 30, 2023
Related-Party Transactions [Abstract]
Schedule Of Amounts Payable To (Receivables From) Related Parties	At June 30, 2023 At December 31, 2022 STH Texas Transmission Total STH Texas Transmission Total Federal income taxes payable (receivable) $ ( 1 ) $ - $ ( 1 ) $ 14 $ 4 $ 18 Texas margin tax payable 16 - 16 27 - 27 Net payable (receivable) $ 15 $ - $ 15 $ 41 $ 4 $ 45
Schedule Of Cash Payments Made To (Received From) Related Parties	Six Months Ended June 30, 2023 Six Months Ended June 30, 2022 STH Texas Transmission Total STH Texas Transmission Total Federal income taxes $ 35 $ 8 $ 43 $ 41 $ 10 $ 51 Texas margin tax 25 - 25 22 - 22 Total payments $ 60 $ 8 $ 68 $ 63 $ 10 $ 73

Supplementary Financial Infor_2

Supplementary Financial Information (Tables)	6 Months Ended
	Jun. 30, 2023
Supplementary Financial Information [Abstract]
Schedule Of Other Deductions And (Income)	Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Professional fees $ 3 $ 1 $ 5 $ 3 Recoverable Pension and OPEB – non-service costs 8 14 23 27 Non-recoverable pension and OPEB ( 1 ) - ( 1 ) - Gain on sale of non-utility property - ( 11 ) - ( 11 ) AFUDC – equity income ( 12 ) ( 8 ) ( 23 ) ( 14 ) Interest and investment loss (income) – net ( 3 ) 2 ( 4 ) 4 Other - 1 2 1 Total other deductions and (income) – net $ ( 5 ) $ ( 1 ) $ 2 $ 10
Schedule Of Interest Expense And Related Charges	Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Interest $ 137 $ 109 $ 263 $ 218 Amortization of discount, premium and debt issuance costs 3 3 6 5 Less AFUDC – capitalized interest portion ( 7 ) ( 4 ) ( 13 ) ( 7 ) Total interest expense and related charges $ 133 $ 108 $ 256 $ 216
Schedule Of Trade Accounts And Other Receivables	At June 30, At December 31, 2023 2022 Gross trade accounts and other receivables $ 979 $ 897 Allowance for uncollectible accounts ( 13 ) ( 13 ) Trade accounts receivable – net $ 966 $ 884
Summary of Investments And Other Property	At June 30, At December 31, 2023 2022 Assets related to employee benefit plans $ 122 $ 123 Non-utility property – land 12 12 Other 2 2 Total investments and other property $ 136 $ 137
Summarized Financial Information for Consolidated VIE	At June 30, 2023 Assets Cash and cash equivalents $ 4 Trade accounts receivable – net 588 Total assets $ 592 Liabilities Long-term debt $ 325 Total Liabilities $ 325
Schedule Of Property, Plant And Equipment	Composite Depreciation Rate/ At June 30, At December 31, Average Life of Depreciable Plant at June 30, 2023 (a) 2023 2022 Assets in service: Distribution (b) 2.7 % / 36.5 years $ 17,985 $ 17,226 Transmission (c) 2.4 % / 42.4 years 14,372 13,874 Other assets 7.4 % / 13.5 years 2,108 2,156 Total 34,465 33,256 Less accumulated depreciation 9,170 9,054 Net of accumulated depreciation 25,295 24,202 Construction work in progress 1,188 953 Held for future use 48 48 Property, plant and equipment – net $ 26,531 $ 25,203 ____________ (a) Reflects depreciation rates and average lives of depreciable plant in the final order in our comprehensive base rate review (PUCT Docket No. 53601) that went into effect on May 1, 2023. (b) Includes a $ 30 million write-off in the first quarter of 2023 of previously capitalized distribution assets in property, plant and equipment to reflect the PUCT’s disallowance from rate base of certain employee benefit/compensation expenses in the final order in our comprehensive base rate review. See Note 2 for more information on the base rate review. (c) Includes a $ 25 million write-off in the first quarter of 2023 of previously capitalized transmission assets in property, plant and equipment to reflect the PUCT’s disallowance from rate base of certain employee benefit/compensation expenses in the final order in our comprehensive base rate review. See Note 2 for more information on the base rate review.
Schedule Of Intangible Assets	At June 30, 2023 At December 31, 2022 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Net Amount Amortization Net Identifiable intangible assets subject to amortization: Land easements $ 667 $ 124 $ 543 $ 662 $ 122 $ 540 Capitalized software 1,211 461 750 1,183 441 742 Total $ 1,878 $ 585 $ 1,293 $ 1,845 $ 563 $ 1,282
Schedule Of Estimated Aggregate Amortization Expenses	Year Amortization Expense (a) 2023 $ 99 2024 $ 105 2025 $ 105 2026 $ 105 2027 $ 105 ____________ (a) Amortization rates and average lives of depreciable intangible assets, reflected in the final order in our comprehensive base rate review (PUCT Docket No. 53601) that went into effect on May 1, 2023.
Schedule Of Operating Lease, Third Party Joint Project And Other Obligations	At June 30, At December 31, 2023 2022 Operating lease liabilities $ 122 $ 131 Investment tax credits 3 3 Customer advances for construction – noncurrent 62 71 Other 104 70 Total operating lease and other obligations $ 291 $ 275
Schedule Of Supplemental Cash Flow Information	Six Months Ended June 30, 2023 2022 Cash payments related to: Interest $ 245 $ 213 Less capitalized interest ( 13 ) ( 7 ) Interest payments (net of amounts capitalized) $ 232 $ 206 Amount in lieu of income taxes (Note 9): Federal $ 43 $ 51 State 25 22 Total payments in lieu of income taxes $ 68 $ 73 Noncash investing activities: Construction expenditures financed through accounts payable (a) $ 244 $ 168 ______________ (a) Represents end-of-period accruals .

Business And Significant Acco_4

Business And Significant Accounting Policies (Narrative) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($) segment item	Dec. 31, 2022 USD ($)
Business And Significant Accounting Polices [Line Items]
Number of reportable business segments | segment	1
Number of board of directors	13
Number of disinterested directors	7
Direct or indirect ownership interest time period	10 years
Number of board positions to be eliminated upon acquisition	2
Number of directors appointed	2
Goodwill | $	$ 4,740	$ 4,740
Sempra Energy [Member]
Business And Significant Accounting Polices [Line Items]
Number of disinterested directors	2
Oncor Holdings [Member]
Business And Significant Accounting Polices [Line Items]
Ownership	80.25%
Number of directors appointed	2
Texas Transmission [Member]
Business And Significant Accounting Polices [Line Items]
Ownership	19.75%
Number of disinterested directors	2
Minimum [Member]
Business And Significant Accounting Polices [Line Items]
Disinterested directors expenditure budget percentage	10%

Business And Significant Acco_5

Business And Significant Accounting Policies (Schedule Of Cash, Cash Equivalents And Restricted Cash) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Business And Significant Accounting Policies [Abstract]
Cash and cash equivalents	$ 28,000	$ 10,000
Restricted cash, current (Note 1)	23,000	16,000
Restricted cash, noncurrent (Note 1)	65,000	72,000
Total cash, cash equivalents and restricted cash on the Condensed Statements of Consolidated Cash Flows	$ 116,000	$ 98,000	$ 143,000	$ 54,000

Regulatory Matters (Narrative)

Regulatory Matters (Narrative) (Details) - USD ($) $ in Millions		6 Months Ended	12 Months Ended
	Apr. 06, 2023	Jun. 30, 2023	Dec. 31, 2022
Regulatory Matters [Abstract]
Amount of disallowed costs from rate base		$ 65
Additional charge against income		4
Write-off of rate base disallowances		69
Write-off of rate base disallowances, operating, net of tax		54
Write-off of rate base disallowances Operating		55
Write-off of rate base disallowances, operating, net of tax		43
Write-off of non-operating rate base disallowances		14
Write-off of non-operating rate base disallowances, net of tax		$ 11
Public Utilities, Requested Debt Capital Structure, Percentage	57.50%
Public Utilities, Requested Equity Capital Structure, Percentage	42.50%
Authorized return on equity	9.70%		9.80%
Regulatory Noncurrent Asset, Amortization Period		5 years

Regulatory Matters (Schedule of

Regulatory Matters (Schedule of Interim Rate Update Applications) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($)
DCRF [Member]
Regulatory Assets And Liabilities [Line Items]
Requested Annual Revenue Impact	$ 153
TCOS [Member]
Regulatory Assets And Liabilities [Line Items]
Requested Annual Revenue Impact	$ 42

Regulatory Matters (Components

Regulatory Matters (Components Of Regulatory Assets And Liabilities) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Assets	$ 1,607	$ 1,502
Carrying Amount, Regulatory Liabilities	2,938	3,014
Net regulatory assets (liabilities)	(1,331)	(1,512)
Estimated Net Removal Costs [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Liabilities	1,483	1,431
Excess Deferred Taxes [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Liabilities	1,343	1,375
Over-Recovered Wholesale Transmission Service Expense [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Liabilities		101
Unamortized Gain On Reacquisition Of Debt [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Liabilities	$ 25	25
Employee Retirement Costs Over-Recovered Being Refunded [Member]
Regulatory Assets And Liabilities [Line Items]
Remaining Rate Recovery/Amortization Period	5 years
Carrying Amount, Regulatory Liabilities	$ 25
Employee Retirement Costs Over Recovered Since the Last Base Rate Review Periods [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Assets	34	60
Other Regulatory Liabilities [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Liabilities	28	22
Employee Retirement Liability [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Assets	154	157
Reclassification adjustment regulatory assets	$ 20
Employee Retirement Costs Being Amortized [Member]
Regulatory Assets And Liabilities [Line Items]
Remaining Rate Recovery/Amortization Period	5 years
Carrying Amount, Regulatory Assets	$ 109	158
Employee Retirement Costs Incurred Since the Last Base Rate Review Periods [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Assets	$ 79	91
Self-Insurance Reserve (Primarily Storm Recovery Costs) Being Amortized [Member]
Regulatory Assets And Liabilities [Line Items]
Remaining Rate Recovery/Amortization Period	5 years
Carrying Amount, Regulatory Assets	$ 513	181
Self-Insurance Reserve Incurred Since the Last base Rate Review Periods (Primarily Storm Related) [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Assets	372	571
Debt Reacquisition Costs [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Assets	$ 12	15
Under-recovered AMS Costs [Member]
Regulatory Assets And Liabilities [Line Items]
Remaining Rate Recovery/Amortization Period	5 years
Carrying Amount, Regulatory Assets	$ 96	107
Energy Efficiency Program Performance Bonus [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Assets	$ 14	28
Wholesale Distribution Substation Service Being Amortized [Member]
Regulatory Assets And Liabilities [Line Items]
Remaining Rate Recovery/Amortization Period	5 years
Carrying Amount, Regulatory Assets	$ 73
Wholesale Distribution Substation Service Incurred Since the Last Base Rate Review Periods [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Assets	$ 28	97
Expenses Related To Covid19 Being Amortized [Member]
Regulatory Assets And Liabilities [Line Items]
Remaining Rate Recovery/Amortization Period	5 years
Carrying Amount, Regulatory Assets	$ 34
Unrecovered Expenses Related To Covid19 Incurred Since the Last Base Rate Review Periods [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Assets	2	37
Recoverable Deferred Income Taxes [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Assets	$ 31	25
Uncollectible Payments From Reps Being Amortized [Member]
Regulatory Assets And Liabilities [Line Items]
Remaining Rate Recovery/Amortization Period	5 years
Carrying Amount, Regulatory Assets	$ 8
Uncollectible Payments From REPs Incurred Since the Last Base Rate Review Periods [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Assets		8
Under-Recovered Wholesale Transmission Service Expense [Member]
Regulatory Assets And Liabilities [Line Items]
Remaining Rate Recovery/Amortization Period	1 year
Carrying Amount, Regulatory Assets	$ 50
Other Regulatory Assets [Member]
Regulatory Assets And Liabilities [Line Items]
Carrying Amount, Regulatory Assets	$ 32	$ 27
Maximum [Member] | Over-Recovered Wholesale Transmission Service Expense [Member]
Regulatory Assets And Liabilities [Line Items]
Remaining Rate Recovery/Amortization Period	1 year
Maximum [Member] | Energy Efficiency Program Performance Bonus [Member]
Regulatory Assets And Liabilities [Line Items]
Remaining Rate Recovery/Amortization Period	1 year

Revenues (Narrative) (Details)

Revenues (Narrative) (Details) - customer	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Number of REPS		100
Payment term		35 days
Number of largest customers		2
Trade Accounts Receivable [Member]
Disaggregation of Revenue [Line Items]
Number of largest customers		2	2
REP Subsidiary One [Member] | Customers [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Concentration Risk, Percentage	21%	23%
REP Subsidiary Two [Member] | Customers [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Concentration Risk, Percentage	18%	20%

Revenues (Disaggregation Of Rev

Revenues (Disaggregation Of Revenues) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue [Line Items]
Total revenues contributing to earnings	$ 1,010,000	$ 991,000	$ 1,969,000	$ 1,950,000
Revenues collected for pass-through expenses	333,000	302,000	666,000	592,000
Total operating revenues	1,343,000	1,293,000	2,635,000	2,542,000
Distribution Base Revenues [Member]
Disaggregation of Revenue [Line Items]
Total revenues contributing to earnings	614,000	600,000	1,165,000	1,178,000
Transmission Base Revenues (TCOS Revenues) [Member]
Disaggregation of Revenue [Line Items]
Total revenues contributing to earnings	371,000	369,000	762,000	732,000
Transmission Base Revenues (TCOS Revenues) [Member] | Third-Party Wholesale Customers [Member]
Disaggregation of Revenue [Line Items]
Total revenues contributing to earnings	238,000	237,000	488,000	470,000
Transmission Base Revenues (TCOS Revenues) [Member] | REPS Serving Oncor Distribution Customers, Through TCRF [Member]
Disaggregation of Revenue [Line Items]
Total revenues contributing to earnings	133,000	132,000	274,000	262,000
Other Miscellaneous Revenues [Member]
Disaggregation of Revenue [Line Items]
Total revenues contributing to earnings	25,000	22,000	42,000	40,000
TCRF - Third-party Wholesale Transmission Service [Member]
Disaggregation of Revenue [Line Items]
Revenues collected for pass-through expenses	322,000	290,000	643,000	571,000
EECRF [Member]
Disaggregation of Revenue [Line Items]
Revenues collected for pass-through expenses	$ 11,000	$ 12,000	$ 23,000	$ 21,000

Short-Term Borrowings (Narrativ

Short-Term Borrowings (Narrative) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($) item	Nov. 30, 2021 USD ($)
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 2,000
Number of revolving credit facilities extension options | item	1
Extension period for revolving line of credit	1 year
Increments in additional bororwing capacity	$ 100
Maximum indebtness amount before default	100
Maximum judgement for payment amount before default	$ 100
Discharge period	60 days
Maximum pricing adjustment on commitment fee, percentage	0.01%
Maximum pricing adjustment on applicable margin, percentage	0.05%
Revolving Credit Facility [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Additional increase in borrowing capacity amount	$ 400
Commitment fee	0.225%
Debt-to-capitalization ratio	1
Revolving Credit Facility [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Commitment fee	0.075%
Debt-to-capitalization ratio	0.65
Commercial Paper [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 2,000
Commercial Paper [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Credit facility, term	397 days
SOFR one month interest period [Member]
Line of Credit Facility [Line Items]
Spread over variable rate	1%
Federal Funds Effective Rate [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.50%
Federal Funds Effective Rate [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Spread over variable rate	0.50%
Federal Funds Effective Rate [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Spread over variable rate	0%
Secured Overnight Financing Rate (SOFR) [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.10%
Secured Overnight Financing Rate (SOFR) [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Spread over variable rate	1.50%
Secured Overnight Financing Rate (SOFR) [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Spread over variable rate	0.875%

Short-Term Borrowings (Schedule

Short-Term Borrowings (Schedule Of Short-Term Borrowings) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Jun. 30, 2023
Short-Term Debt [Line Items]
Total credit facility borrowing capacity	$ 2,000	$ 2,000
Available unused credit	1,802	$ 2,000
Commercial Paper [Member]
Short-Term Debt [Line Items]
Outstanding	$ (198)
Interest Rate	4.58%
Maximum [Member] | Commercial Paper [Member]
Short-Term Debt [Line Items]
Maturity dates	1 year

Long-Term Debt (Narrative) (Det

Long-Term Debt (Narrative) (Details) - USD ($) $ in Millions								3 Months Ended	6 Months Ended
	Jul. 28, 2023	May 11, 2023	Apr. 26, 2023	Mar. 29, 2023	Mar. 22, 2023	Jan. 09, 2023	Sep. 08, 2022	Jun. 30, 2023	Jun. 30, 2023	Jun. 30, 2022	Apr. 30, 2023	Apr. 28, 2023	Mar. 23, 2023	Feb. 27, 2023	Jan. 27, 2023	Jan. 24, 2023	Dec. 31, 2022
Long-Term Debt [Line Items]
Repayments of long-term debt									$ 875	$ 1,050
Percentage of fair value of cost of property additions certified to the Deed of Trust collateral agent									85%
Estimated fair value of our long-term debt including current maturities								$ 12,085	$ 12,085								$ 10,398
Carrying amount								12,822	12,822								11,228
Available unused credit								2,000	2,000								1,802
Notes 2028 and Notes 2052 [Member]
Long-Term Debt [Line Items]
Proceeds from issuance of long term debt, net									$ 970
Percentage of principal amount plus accrued and unpaid interest and make-whole premium									100%
January 2023 Term Loan Credit Agreement 2 [Member]
Long-Term Debt [Line Items]
Repayments of long-term debt		$ 625
Aggregate principal amount		0
Term loan																$ 625
Debt principal amount														$ 125	$ 500
January 2023 Term Loan Credit Agreement 2 [Member] | One Month Secured Overnight Financing Rate [Member]
Long-Term Debt [Line Items]
Spread over variable rate									0.85%
March 2023 Term Loan Credit Agreement [Member]
Long-Term Debt [Line Items]
Repayments of long-term debt					$ 150
Debt principal amount													$ 150
March 2023 Term Loan Credit Agreement [Member] | One Month Secured Overnight Financing Rate [Member]
Long-Term Debt [Line Items]
Spread over variable rate									0.95%
Accounts Receivable Securitization Facility [Member] | Receivables LLC [Member]
Long-Term Debt [Line Items]
Repayments of long-term debt		100
Maximum borrowing capacity								495	$ 495		$ 500
Debt service fee percentage												0.01%
Available unused credit								170	170
Outstanding borrowing under the revolving credit facility								325	325
Accounts Receivable Securitization Facility [Member] | Receivables LLC [Member] | Subsequent Event [Member]
Long-Term Debt [Line Items]
Borrowings	$ 135
Maximum [Member] | March 2023 Note Purchase Agreement [Member]
Long-Term Debt [Line Items]
Senior debt to capitalization ratio				0.65
Secured Debt [Member]
Long-Term Debt [Line Items]
Aggregate principal amount								$ 12,645	$ 12,645								$ 11,245
Secured Debt [Member] | 4.95% Senior Notes due September 15, 2052
Long-Term Debt [Line Items]
Interest percentage								4.95%	4.95%								4.95%
Aggregate principal amount		$ 400					$ 500	$ 900	$ 900								$ 500
Spread over variable rate		4.95%					4.95%
Secured Debt [Member] | 5.50% Senior Notes, Series C, due May 1, 2026 [Member]
Long-Term Debt [Line Items]
Interest percentage								5.50%	5.50%								5.50%
Aggregate principal amount				$ 200				$ 200	$ 200
Spread over variable rate				5.50%
Secured Debt [Member] | 5.34% Senior Notes, Series D, due May 1, 2031 [Member]
Long-Term Debt [Line Items]
Interest percentage								5.34%	5.34%								5.34%
Aggregate principal amount			$ 28	$ 72				$ 100	$ 100
Spread over variable rate			5.34%	5.34%				5.34%
Secured Debt [Member] | 5.45% Senior Notes, Series E, due May 1, 2036 [Member]
Long-Term Debt [Line Items]
Interest percentage								5.45%	5.45%								5.45%
Aggregate principal amount			$ 20	$ 80				$ 100	$ 100
Spread over variable rate			5.45%	5.45%				5.45%
Secured Debt [Member] | 4.30% Senior Secured Notes due May 15, 2028 [Member]
Long-Term Debt [Line Items]
Aggregate principal amount		$ 600
Spread over variable rate		4.30%
Unsecured Debt [Member] | March 2023 Term Loan Credit Agreement [Member]
Long-Term Debt [Line Items]
Repayments of long-term debt		$ 150
Term loan					$ 150
Unsecured Debt [Member] | June 2021 Term Loan Credit Agreement Maturing August 15, 2022 [Member]
Long-Term Debt [Line Items]
Repayments of long-term debt						$ 100
Aggregate principal amount						$ 0

Long-Term Debt (Schedule Of Lon

Long-Term Debt (Schedule Of Long-Term Debt) (Details) - USD ($) $ in Millions	Jun. 30, 2023	May 11, 2023	Apr. 26, 2023	Mar. 29, 2023	Jan. 09, 2023	Dec. 31, 2022	Sep. 08, 2022
Debt Instrument [Line Items]
Total long-term debt	$ 12,970					$ 11,345
Unamortized discount and debt issuance costs	(147)					(117)
Less amount due currently	(500)					(100)
Long-term debt, less amounts due currently	12,323					11,128
Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	12,645					11,245
2.75% Senior Notes due June 1, 2024 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 500					$ 500
Interest percentage	2.75%					2.75%
2.95% Fixed Senior Notes Due April 1, 2025 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 350					$ 350
Interest percentage	2.95%					2.95%
0.55% Senior Notes Due October 1, 2025 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 450					$ 450
Interest percentage	0.55%					0.55%
3.86% Senior Notes, Series A, due December 3, 2025 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 174					$ 174
Interest percentage	3.86%					3.86%
3.86% Senior Notes, Series B, due January 14, 2026 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 38					$ 38
Interest percentage	3.86%					3.86%
5.50% Senior Notes, Series C, due May 1, 2026 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 200			$ 200
Interest percentage	5.50%					5.50%
4.30% Senior Notes due May 15, 2028 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 600
Interest percentage	4.30%					4.30%
3.70% Fixed Senior Notes Due November 15, 2028 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 650					$ 650
Interest percentage	3.70%					3.70%
5.75% Fixed Senior Notes Due March 15, 2029 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 318					$ 318
Interest percentage	5.75%					5.75%
2.75% Senior Notes Due May 15, 2030 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 700					$ 700
Interest percentage	2.75%					2.75%
5.34% Senior Notes, Series D, due May 1, 2031 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 100		$ 28	72
Interest percentage	5.34%					5.34%
7.00% Fixed Senior Notes Due May 1, 2032 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 494					$ 494
Interest percentage	7%					7%
4.15% Senior Notes Due June 1, 2032 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 400					$ 400
Interest percentage	4.15%					4.15%
4.55% Senior Notes due September 15, 2032 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 700					$ 700
Interest percentage	4.55%					4.55%
7.25% Fixed Senior Notes Due January 15, 2033 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 323					$ 323
Interest percentage	7.25%					7.25%
5.45% Senior Notes, Series E, due May 1, 2036 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 100		$ 20	$ 80
Interest percentage	5.45%					5.45%
7.50% Fixed Senior Notes Due September 1, 2038 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 300					$ 300
Interest percentage	7.50%					7.50%
5.25% Fixed Senior Notes Due September 30, 2040 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 475					$ 475
Interest percentage	5.25%					5.25%
4.55% Fixed Senior Notes Due December 1, 2041 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 400					$ 400
Interest percentage	4.55%					4.55%
5.30% Fixed Senior Notes Due June 1, 2042 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 348					$ 348
Interest percentage	5.30%					5.30%
3.75% Fixed Senior Notes Due April 1, 2045 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 550					$ 550
Interest percentage	3.75%					3.75%
3.80% Fixed Senior Notes Due September 30, 2047 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 325					$ 325
Interest percentage	3.80%					3.80%
4.10% Fixed Senior Notes Due November 15, 2048 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 450					$ 450
Interest percentage	4.10%					4.10%
3.80% Senior Notes, due June 1, 2049 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 500					$ 500
Interest percentage	3.80%					3.80%
3.10% Senior Notes, due September 15, 2049 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 700					$ 700
Interest percentage	3.10%					3.10%
3.70% Senior Notes Due May 15, 2050 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 400					$ 400
Interest percentage	3.70%					3.70%
2.70% Senior Notes Due November 15, 2051 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 500					$ 500
Interest percentage	2.70%					2.70%
4.60% Senior Notes due June 1, 2052 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 400					$ 400
Interest percentage	4.60%					4.60%
4.95% Senior Notes due September 15, 2052 | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 900	$ 400				$ 500	$ 500
Interest percentage	4.95%					4.95%
5.35% Senior Notes Due October 1, 2052 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 300					$ 300
Interest percentage	5.35%					5.35%
AR Facility due April 28, 2026 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt	$ 325
June 2021 Term Loan Credit Agreement Maturing August 15, 2022 [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
Secured long-term debt					$ 0
Term Loan Credit Agreement Due August 30, 2023 [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
Term loan						$ 100

Commitments And Contingencies (

Commitments And Contingencies (Narrative) (Details) $ in Thousands	Jun. 30, 2023 USD ($)
Commitments And Contingencies [Abstract]
Operating leases treated as capital leases	$ 4,000

Membership Interests (Narrative

Membership Interests (Narrative) (Details) - USD ($) $ in Millions		6 Months Ended
	Jul. 27, 2023	Jun. 30, 2023	Jun. 30, 2022	Jul. 25, 2023
Subsequent Event [Line Items]
Cash restricted for distribution under the capital structure restriction		$ 569
Regulatory capitalization ratio, debt		57.50%
Regulatory capitalization ratio, equity		42.50%
Current regulatory capitalization ratio, debt		56.10%
Current regulatory capitalization ratio, equity		43.90%
Members contribution		$ 221	$ 212
Subsequent Event [Member]
Subsequent Event [Line Items]
Cash restricted for distribution under the capital structure restriction				$ 149
Members contribution	$ 115

Membership Interests (Schedule

Membership Interests (Schedule Of Cash Capital Contributions) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Related Party Transaction [Line Items]
Members contribution	$ 221	$ 212
February 13, 2023 [Member]
Related Party Transaction [Line Items]
Payment Date	Feb. 13, 2023
Members contribution	$ 106
April 27, 2023 [Member]
Related Party Transaction [Line Items]
Payment Date	Apr. 27, 2023
Members contribution	$ 115

Membership Interests (Schedul_2

Membership Interests (Schedule Of Distributions Paid) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Dividends Payable [Line Items]
Amount	$ 255	$ 212
Payment One FY 2023 [Member]
Dividends Payable [Line Items]
Declaration Date	Feb. 14, 2023
Payment Date	Feb. 15, 2023
Amount	$ 106
Payment Two FY 2023 [Member]
Dividends Payable [Line Items]
Declaration Date	Apr. 25, 2023
Payment Date	Apr. 26, 2023
Amount	$ 149

Membership Interests (Schedul_3

Membership Interests (Schedule Of Changes To Membership Interests) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Balance		$ 13,462		$ 13,462
Net income	$ 200		$ 229	303	$ 423
Capital contributions				221	212
Distributions				(255)	(212)
Net effects of cash flow hedges (net of tax)				1	1
Defined benefit pension plans			1	(20)	2
Balance	13,712			13,712
Membership Interest [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Balance	13,727	13,624	12,913	13,624	12,719
Net income	200		229	303	423
Capital contributions	115		106	221	212
Distributions	(149)		(106)	(255)	(212)
Balance	13,893	13,727	13,142	13,893	13,142
Accumulated Other Comprehensive Income (Loss) [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Balance	(181)	(162)	(129)	(162)	(131)
Net effects of cash flow hedges (net of tax)				1	1
Defined benefit pension plans			1	(20)	2
Balance	(181)	(181)	(128)	(181)	(128)
Reclassification from regulatory assets related to employee retirement liabilities to other comprehensie income		20
Membership Interests [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Balance	13,546	13,462	12,784	13,462	12,588
Net income	200		229	303	423
Capital contributions	115		106	221	212
Distributions	(149)		(106)	(255)	(212)
Net effects of cash flow hedges (net of tax)				1	1
Defined benefit pension plans			1	(20)	2
Balance	$ 13,712	13,546	$ 13,014	$ 13,712	$ 13,014
Reclassification from regulatory assets related to employee retirement liabilities to other comprehensie income		$ 20

Membership Interests (Schedul_4

Membership Interests (Schedule Of Changes To Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	$ (162,000)		$ (162,000)
Balance at end of period			(181,000)
Tax expense cash flow hedges reclassified from AOCI			0	$ 0
Defined benefit pension plans		$ 1,000	(20,000)	2,000
Cash Flow Hedges - Interest Rate Swap [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(34,000)		(34,000)	(36,000)
Cash flow hedge amounts reclassified from AOCI and reported in interest expense and related charges (net of tax expense of $0)			1,000	1,000
Balance at end of period		(35,000)	(33,000)	(35,000)
Defined Benefit Pension and OPEB Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(128,000)		(128,000)	(95,000)
Defined benefit pension plans			(20,000)	2,000
Balance at end of period		(93,000)	(148,000)	(93,000)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(162,000)		(162,000)	(131,000)
Defined benefit pension plans			(20,000)	2,000
Cash flow hedge amounts reclassified from AOCI and reported in interest expense and related charges (net of tax expense of $0)			1,000	1,000
Balance at end of period		(128,000)	(181,000)	(128,000)
Defined benefit pension plans		$ 1,000	$ (20,000)	$ 2,000
Reclassification from regulatory assets related to employee retirement liabilities to other comprehensie income	$ 20,000

Pension And OPEB Plans (Narrati

Pension And OPEB Plans (Narrative) (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) item	Jun. 30, 2022 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of defined pension plans in which the Company participates | item			2
Percentage of plan attributed to regulated business			100%
Oncor Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate			5.19%
Expected return on plan assets			6.05%
Vistra Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate			5.19%
Expected return on plan assets			6.47%
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of net loss		$ (8)	$ (1)	$ (16)
Cash contributions			2
Additional cash contributions	$ 3		3
Additional cash contributions, next five years			466
OPEB Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of net loss	8		$ 16
Discount rate			5.11%
Expected return on plan assets			6.94%
Cash contributions			$ 14
Additional cash contributions	$ 10		10
Additional cash contributions, next five years			$ 128

Pension And OPEB Plans (Schedul

Pension And OPEB Plans (Schedule Of Pension And OPEB Plan Costs) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 6	$ 8	$ 12	$ 16
Interest cost	30	23	61	45
Expected return on assets	(32)	(27)	(64)	(53)
Amortization of net loss		8	1	16
Net pension costs	4	12	10	24
Net adjustments	2	(1)	6	(2)
Net pension costs recognized as operation and maintenance expense or other deductions	6	11	16	22
OPEB Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1	2	2
Interest cost	8	6	16	12
Expected return on assets	(2)	(2)	(4)	(4)
Amortization of net loss	(8)		(16)
Net pension costs	(1)	5	(2)	10
Net adjustments	5	3	14	5
Net pension costs recognized as operation and maintenance expense or other deductions	$ 4	$ 8	$ 12	$ 15

Related-Party Transactions (Nar

Related-Party Transactions (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Related Party Transaction [Line Items]
Revenue	$ 1,343,000	$ 1,293,000	$ 2,635,000	$ 2,542,000
Sharyland Distribution & Transmission Services (SDTS) [Member]
Related Party Transaction [Line Items]
Revenue	$ 4,000	$ 4,000	$ 8,000	7,000
Sharyland Distribution & Transmission Services (SDTS) [Member] | Sempra Texas Holdings [Member] | Parent of Sharyland [Member]
Related Party Transaction [Line Items]
Percentage of membership interest owned by non-controlling owners	50%		50%
Maximum [Member] | Sharyland Distribution & Transmission Services (SDTS) [Member]
Related Party Transaction [Line Items]
Cash payments to vendors			$ 1,000	$ 1,000

Related-Party Transactions (Sch

Related-Party Transactions (Schedule Of Amounts Payable To (Receivables From) Related Parties) (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Related Party Transaction [Line Items]
Federal income taxes (receivable)	$ (1)
Federal income taxes payable		$ 18
Texas margin tax payable	16	27
Net payable (receivable)	15	45
Sempra Texas Holdings [Member]
Related Party Transaction [Line Items]
Federal income taxes (receivable)	(1)
Federal income taxes payable		14
Texas margin tax payable	16	27
Net payable (receivable)	$ 15	41
Texas Transmission Investment LLC [Member]
Related Party Transaction [Line Items]
Federal income taxes payable		4
Net payable (receivable)		$ 4

Related-Party Transactions (S_2

Related-Party Transactions (Schedule Of Cash Payments Made To (Received From) Related Parties) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Related Party Transaction [Line Items]
Federal income taxes	$ 43	$ 51
Texas margin taxes	25	22
Total payments	68	73
Sempra Texas Holdings [Member]
Related Party Transaction [Line Items]
Federal income taxes	35	41
Texas margin taxes	25	22
Total payments	60	63
Texas Transmission Investment LLC [Member]
Related Party Transaction [Line Items]
Federal income taxes	8	10
Total payments	$ 8	$ 10

Supplementary Financial Infor_3

Supplementary Financial Information (Narrative) (Details) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) customer	Jun. 30, 2022 USD ($)	Dec. 31, 2022
Supplemental Financial Information [Line Items]
Number of largest customers | customer			2
Aggregate amortization expenses | $	$ 24	$ 19	$ 46	$ 38
Trade Accounts Receivable [Member] | Customers [Member] | Nonaffiliated REP [Member]
Supplemental Financial Information [Line Items]
Concentration risk percentage			21%		23%
Trade Accounts Receivable [Member] | Customers [Member] | Second Nonaffiliated REP [Member]
Supplemental Financial Information [Line Items]
Concentration risk percentage			19%		20%

Supplementary Financial Infor_4

Supplementary Financial Information (Schedule Of Other Deductions And (Income)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Supplementary Financial Information [Abstract]
Professional fees	$ 3,000	$ 1,000	$ 5,000	$ 3,000
Recoverable pension and OPEB - non-service costs	8,000	14,000	23,000	27,000
Non-recoverable pension and OPEB	(1,000)		(1,000)
Gain on sale of non-utility property		(11,000)		(11,000)
AFUDC - equity income	(12,000)	(8,000)	(23,000)	(14,000)
Interest and investment loss (income) – net	(3,000)	2,000	(4,000)	4,000
Other		1,000	2,000	1,000
Total other deductions and (income) - net	$ (5,000)	$ (1,000)	$ 2,000	$ 10,000

Supplementary Financial Infor_5

Supplementary Financial Information (Schedule Of Interest Expense And Related Charges) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Supplementary Financial Information [Abstract]
Interest	$ 137	$ 109	$ 263	$ 218
Amortization of discount, premium and debt issuance costs	3	3	6	5
Less AFUDC – capitalized interest portion	(7)	(4)	(13)	(7)
Total interest expense and related charges	$ 133	$ 108	$ 256	$ 216

Supplementary Financial Infor_6

Supplementary Financial Information (Schedule Of Trade Accounts And Other Receivables) (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Supplementary Financial Information [Abstract]
Gross trade accounts and other receivables	$ 979	$ 897
Allowance for uncollectible accounts	(13)	(13)
Trade accounts receivable - net	$ 966	$ 884

Supplementary Financial Infor_7

Supplementary Financial Information (Summary of Investments And Other Property) (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Supplementary Financial Information [Abstract]
Assets related to employee benefit plans	$ 122	$ 123
Non-utility property - land	12	12
Other	2	2
Total investments and other property	$ 136	$ 137

Supplementary Financial Infor_8

Supplementary Financial Information (Summarized Financial Information for Consolidated VIE) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Cash and cash equivalents	$ 28,000	$ 10,000
Trade accounts receivable – net	966,000	884,000
Assets	34,631,000	33,038,000
Long-term debt	12,970,000	11,345,000
Liabilities	20,919,000	$ 19,576,000
Consolidated VIE [Member]
Cash and cash equivalents	4,000
Trade accounts receivable – net	588,000
Assets	592,000
Long-term debt	325,000
Liabilities	$ 325,000

Supplementary Financial Infor_9

Supplementary Financial Information (Schedule Of Property, Plant And Equipment) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Property Plant and Equipment [Line Items]
Total assets in service	$ 34,465		$ 33,256
Less accumulated depreciation	9,170		9,054
Net of accumulated depreciation	25,295		24,202
Construction work in progress	1,188		953
Held for future use	48		48
Property, plant and equipment - net	26,531		25,203
Distribution [Member]
Property Plant and Equipment [Line Items]
Total assets in service	$ 17,985		17,226
Composite depreciation rate	2.70%
Avg. life	36 years 6 months
Write-off of previously capitalized distribution assets		$ 30
Transmission [Member]
Property Plant and Equipment [Line Items]
Total assets in service	$ 14,372		13,874
Composite depreciation rate	2.40%
Avg. life	42 years 4 months 24 days
Write-off of previously capitalized distribution assets		$ 25
Other Assets [Member]
Property Plant and Equipment [Line Items]
Total assets in service	$ 2,108		$ 2,156
Composite depreciation rate	7.40%
Avg. life	13 years 6 months

Supplementary Financial Info_10

Supplementary Financial Information (Schedule Of Intangible Assets) (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,878	$ 1,845
Accumulated Amortization	585	563
Net	1,293	1,282
Land Easements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	667	662
Accumulated Amortization	124	122
Net	543	540
Capitalized Software [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,211	1,183
Accumulated Amortization	461	441
Net	$ 750	$ 742

Supplementary Financial Info_11

Supplementary Financial Information (Schedule Of Estimated Aggregate Amortization Expenses) (Details) $ in Millions	Jun. 30, 2023 USD ($)
Supplementary Financial Information [Abstract]
2023	$ 99
2024	105
2025	105
2026	105
2027	$ 105

Supplementary Financial Info_12

Supplementary Financial Information (Schedule Of Operating Lease, Third Party Joint Project And Other Obligations) (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Supplementary Financial Information [Abstract]
Operating lease liabilities	$ 122	$ 131
Investment tax credits	3	3
Customer advances for construction – noncurrent	62	71
Other	104	70
Total operating lease and other obligations	$ 291	$ 275

Supplementary Financial Info_13

Supplementary Financial Information (Schedule Of Supplemental Cash Flow Information) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Supplementary Financial Information [Abstract]
Interest	$ 245	$ 213
Less capitalized interest	(13)	(7)
Interest payments (net of amounts capitalized)	232	206
Federal	43	51
State	25	22
Total payments in lieu of income taxes	68	73
Construction expenditures financed through accounts payable	$ 244	$ 168