Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2014

Compensation And Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Cost

The components of net periodic benefit cost are as follows:

	Pension Benefits
	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2014		2013		2014		2013
(In millions)
Service cost	$	3	$	6	$	8	$	12
Interest cost		37		33		74		67
Expected return on plan assets		(52)		(50)		(105)		(99)
Amortization of unrecognized net loss		8		14		15		28
Regulatory asset decrease		1				1
Net periodic benefit cost	$	(3)	$	3	$	(7)	$	8

	Other Postretirement Benefits
	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2014		2013		2014		2013
(In millions)
Interest cost	$	1	$	1	$	2	$	2
Expected return on plan assets		(1)		(1)		(2)		(2)
Amortization of unrecognized prior service benefit		(7)		(7)		(13)		(13)
Curtailment gain		(86)				(86)
Net periodic benefit cost	$	(93)	$	(7)	$	(99)	$	(13)