Financial and Other Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair value of derivative instruments

The following represents the fair value of derivative instruments as of June 30, 2013 and December 31, 2012:

	June 30,		December 31,
	2013		2012
	(In millions)
FTRs — Other current assets	$	2	$	1
Total derivatives not designated as hedging instrument	$	2	$	1

Volume of Commodity Contracts [Table Text Block]

The following represents the cumulative gross volume of derivative contracts outstanding as of June 30, 2013:

Commodity	Number of Units
FTRs (MWh)	108,832