Membership Interests (Tables)

9 Months Ended

Sep. 30, 2012

Stockholders' Equity Note [Abstract]

Schedule of Membership Interests

The following table presents the changes to membership interests in the nine months ended September 30, 2012.

	Capital Accounts			Accumulated Other Comprehensive Income		Total Membership Interests
Balance at December 31, 2011	$	5,790		$	15	$	5,805
Net income	308			—		308
Distributions paid to parent	(950		)	—		(950		)
Effect of debt push-down from EFH Corp. (Note 4)	30			—		30
Net effect of Oncor's settlement of reimbursement agreements with TCEH	(1		)	—		(1		)
Net effects of investment in long-term debt of affiliates (Note 3)	—			272		272
Net effects of cash flow hedges – Oncor (b)	—			2		2
Other	(1		)	—		(1		)
Balance at September 30, 2012	$	5,176		$	289	$	5,465

____________

(a) Represents recognition in equity in earnings of unconsolidated subsidiary of previous losses on interest rate hedge transactions entered into by Oncor.

The following table presents the changes to membership interests in the nine months ended September 30, 2011.

	Capital Accounts		Accumulated Other Comprehensive Loss			Total Membership Interests
Balance at December 31, 2010	$	5,195	$	(2	)	$	5,193
Net income	367		—			367
Effect of debt push-down from EFH Corp. (Note 4)	220		—			220
Capital contributions (a)	30		—			30
Net effects of investment in long-term debt of affiliates (Note 3)	—		56			56
Net effects of cash flow hedges – Oncor (b)	—		(24		)	(24		)
Balance at September 30, 2011	$	5,812	$	30		$	5,842

____________

(a) Reflects noncash settlement of certain income taxes payable arising as a result of the sale of equity interests in Oncor.

(b) Represents losses on interest rate hedge transactions entered into by Oncor.