Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2014

Accounting Policies [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

As shown in the following tables, amounts recorded to accumulated other comprehensive loss for the three and six months ended June 30, 2014 include unrealized gains and losses on available-for-sale securities, and changes in benefit obligations, consisting of deferred actuarial losses, prior service costs and transition amounts related to pension and other postretirement benefit plans.

	Changes in Accumulated Other Comprehensive Loss by Component (a)
	Three Months Ended June 30, 2014
	Net Unrealized Gain/(Loss) on Investments		Benefit Obligations			Total
	(In millions)
Beginning balance, March 31, 2014	$	1	$	(18	)	$	(17	)
Other comprehensive income before reclassifications	—		—			—
Amounts reclassified from Accumulated other comprehensive income	—		—			—
Net current-period other comprehensive income	—		—			—
Ending balance, June 30, 2014	$	1	$	(18	)	$	(17	)

	Changes in Accumulated Other Comprehensive Loss by Component (a)
	Six Months Ended June 30, 2014
	Net Unrealized Gain/(Loss) on Investments		Benefit Obligations			Total
	(In millions)
Beginning balance, December 31, 2013	$	1	$	(17	)	$	(16	)
Other comprehensive income before reclassifications	—		(1		)	(1		)
Amounts reclassified from Accumulated other comprehensive income	—		—			—
Net current-period other comprehensive income	—		(1		)	(1		)
Ending balance, June 30, 2014	$	1	$	(18	)	$	(17	)

_______________________________________

(a) All amounts are net of tax.

Schedule of Finite-Lived Intangible Assets [Table Text Block]

The Company has certain intangible assets relating to emission allowances and renewable energy credits as shown below:

	June 30,		December 31,
	2014		2013
	(In millions)
Emission allowances	$	2	$	2
Renewable energy credits	51		51
	53		53
Less current intangible assets	13		12
	$	40	$	41