Investment In Long-Term Debt Of Affiliates (Tables)

9 Months Ended

Sep. 30, 2012

Investment In Long-Term Debt Of Affiliates [Abstract]

Schedule of principal amounts, coupon rates, maturities and carrying value

The principal amounts, coupon rates, maturities and carrying value are as follows:

	September 30, 2012					December 31, 2011
	Principal Amount		Carrying Value (a)			Principal Amount		Carrying Value (a)
Available-for-sale securities:
EFH Corp. 10.875% Fixed Senior Notes due November 1, 2017	$	1,591	$	1,447		$	1,591	$	1,288
EFH Corp. 11.25/12.00% Senior Toggle Notes due November 1, 2017	2,951		2,774			2,784		2,283
EFH Corp. 5.55% Fixed Senior Notes Series P due November 15, 2014	45		36			45		30
EFH Corp. 6.50% Fixed Senior Notes Series Q due November 15, 2024	6		3			6		2
EFH Corp. 6.55% Fixed Senior Notes Series R due November 15, 2034	3		2			3		2
TCEH 10.25% Fixed Senior Notes due November 1, 2015 (both periods include $48 million principal amount of Series B Notes)	79		21			79		27
Total available-for-sale securities	$	4,675	$	4,283		$	4,508	$	3,632
Available-for-sale securities:
Carrying (fair) value			$	4,283				$	3,632
Cumulative unrealized gains (recorded as other comprehensive income) (b)			(480		)			(61		)
Amortized cost basis (c)			$	3,803				$	3,571

_____________

(a) Carrying value equals fair value.

(b) 2012 amount reflects unrealized gains on all EFH Corp. securities. 2011 amount reflects unrealized gain on EFH Corp. Toggle Notes.

(c) 2012 amount is net of impairments in 2010 through 2012 totaling $100 million. 2011 amount is net of impairments in 2010 and 2011 totaling $94 million.

Schedule of interest income recorded on investments

Interest income recorded on these investments was as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Held-to-maturity securities:
Interest received/accrued	$	—		$	44		$	—		$	126
Accretion of purchase discount	—			36			—			105
PIK interest received/accrued related to EFH Corp. Toggle Notes	—			80			—			226
Total interest income related to held-to-maturity securities	—			160			—			457
Available-for-sale securities:
Interest received/accrued	46			2			138			6
Accretion of purchase discount	23			(2		)	71			—
PIK interest received/accrued related to EFH Corp. Toggle Notes	89			—			259			—
Impairments related to issuer credit	(6		)	—			(6		)	—
Total interest income related to available-for-sale securities	152			—			462			6
Total interest income	$	152		$	160		$	462		$	463