Contractual interest rate for funds borrowed, under the debt agreement.

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Long-Term transition bonds are bonds under the Competition Act in which the proceeds of Transition Bonds are required to be used principally to reduce qualified stranded costs and the related capitalization of the utility. This represents the noncurrent portion.

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Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

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Long-Term Debt (Schedule Of Long-Term Debt) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Total long-term debt, less amounts due currently	$ 5,680		$ 4,997
6.375% Fixed Senior Notes Due January 15, 2015 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 500		500
Interest percentage	6.375%
5.000% Fixed Senior Notes Due September 30, 2017 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 324		324
Interest percentage	5.00%
6.800% Fixed Senior Notes Due September 1, 2018 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 550		550
Interest percentage	6.80%
2.150% Fixed Senior Notes Due June 1, 2019 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 250		250
Interest percentage	2.15%
5.750% Fixed Senior Notes Due September 30, 2020 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 126		126
Interest percentage	5.75%
4.100% Fixed Senior Notes Due June 1, 2022 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 400		400
Interest percentage	4.10%
7.000% Fixed Debentures Due September 1, 2022 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 800		800
Interest percentage	7.00%
2.950% Fixed Senior Notes due April 1, 2025 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 350	$ 350
Interest percentage	2.95%	2.95%
7.000% Fixed Senior Notes Due May 1, 2032 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 500		500
Interest percentage	7.00%
7.250% Fixed Senior Notes Due January 15, 2033 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 350		350
Interest percentage	7.25%
7.500% Fixed Senior Notes Due September 1, 2038 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 300		300
Interest percentage	7.50%
5.250% Fixed Senior Notes Due September 30, 2040 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 475		475
Interest percentage	5.25%
4.550% Fixed Senior Notes Due December 1, 2041 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 400		400
Interest percentage	4.55%
5.300% Fixed Senior Notes Due June 1, 2042 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 500		500
Interest percentage	5.30%
3.750% Fixed Senior Notes due April 1, 2045 [Member]
Debt Instrument [Line Items]
Fixed Senior Note	$ 375	$ 375
Interest percentage	3.75%	3.75%
5.420% Fixed Series 2003 Bonds Due Through August 15, 2015 [Member]
Debt Instrument [Line Items]
Fixed Bonds	$ 25		54
Interest percentage	5.42%
5.290% Fixed Series 2004 Bonds Due Through May 15, 2016 [Member]
Debt Instrument [Line Items]
Fixed Bonds	$ 86		126
Interest percentage	5.29%
Oncor
Debt Instrument [Line Items]
Unamortized discount	$ (20)		(19)
Less amount due currently			(500)
Total long-term debt, less amounts due currently	5,680		4,956
Bondco
Debt Instrument [Line Items]
Less amount due currently	$ (111)		(139)
Total long-term debt, less amounts due currently			$ 41