Organization and Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2012

Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net [Abstract]

Schedule of Variable Interest Entities [Table Text Block]

	September 30, 2012								December 31, 2011
	Securitization		Other		Total		Restricted Amounts		Securitization		Other		Total		Restricted Amounts
ASSETS
Cash and cash equivalents	$	—	$	4	$	4	$	—	$	—	$	25	$	25	$	—
Restricted cash	50		5		55		55		107		7		114		114
Accounts receivable	39		10		49		40		34		17		51		36
Inventories	—		144		144		—		—		183		183		—
Other current assets	—		3		3		—		—		1		1		—
Property, plant and equipment	—		65		65		20		—		73		73		23
Securitized regulatory assets	456		—		456		456		577		—		577		577
Other assets	8		6		14		14		10		6		16		16
	$	553	$	237	$	790	$	585	$	728	$	312	$	1,040	$	766
LIABILITIES
Accounts payable and accrued current liabilities	$	3	$	—	$	3	$	3	$	14	$	24	$	38	$	14
Current portion long-term debt, including capital leases	177		8		185		185		164		7		171		171
Other current liabilities	55		—		55		55		55		—		55		55
Mortgage bonds, notes and other	—		26		26		26		—		30		30		30
Securitization bonds	302		—		302		302		479		—		479		479
Capital lease obligations	—		11		11		11		—		14		14		14
Other long-term liabilities	7		1		8		7		7		2		9		8
	$	544	$	46	$	590	$	589	$	719	$	77	$	796	$	771

Summary Of Amounts For Nonconsolidated Variable Interest Entities Text Block [Table Text Block]

Amounts for non-consolidated VIEs as of September 30, 2012 and December 31, 2011 are as follows (in millions):

	September 30, 2012		December 31, 2011
Other investments	$	122	$	117
Notes receivable	7		7