Organization and Basis of Presentation (Tables)

6 Months Ended

Jun. 30, 2012

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

Schedule of Variable Interest Entities [Table Text Block]

	June 30, 2012								December 31, 2011
	Securitization		Other		Total		Restricted Amounts		Securitization		Other		Total		Restricted Amounts
ASSETS
Cash and cash equivalents	$	—	$	18	$	18	$	—	$	—	$	25	$	25	$	—
Restricted cash	92		7		99		99		107		7		114		114
Accounts receivable	37		16		53		39		34		17		51		36
Inventories	—		151		151		—		—		183		183		—
Other current assets	—		3		3		—		—		1		1		—
Property, plant and equipment	—		70		70		21		—		73		73		23
Securitized regulatory assets	497		—		497		497		577		—		577		577
Other assets	9		6		15		15		10		6		16		16
	$	635	$	271	$	906	$	671	$	728	$	312	$	1,040	$	766
LIABILITIES
Accounts payable and accrued current liabilities	$	12	$	40	$	52	$	13	$	14	$	24	$	38	$	14
Current portion long-term debt, including capital leases	168		8		176		176		164		7		171		171
Other current liabilities	48		—		48		48		55		—		55		55
Mortgage bonds, notes and other	—		27		27		27		—		30		30		30
Securitization bonds	391		—		391		391		479		—		479		479
Capital lease obligations	—		12		12		12		—		14		14		14
Other long-term liabilities	7		2		9		8		7		2		9		8
	$	626	$	89	$	715	$	675	$	719	$	77	$	796	$	771

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

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

	June 30, 2012		December 31, 2011
Other investments	$	121	$	117
Notes receivable	7		7