Benefit Plans (Tables)

9 Months Ended

Sep. 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				Nine Months Ended
	September 30,				September 30,
	2014		2013		2014		2013
(In millions)
Service cost	$	5	$	6	$	13	$	18
Interest cost		37		34		111		101
Expected return on plan assets		(52)		(49)		(157)		(148)
Amortization of unrecognized net loss		7		12		22		40
Regulatory asset decrease				4		1		4
Net periodic benefit cost	$	(3)	$	7	$	(10)	$	15

	Other Postretirement Benefits
	Three Months Ended				Nine months ended
	September 30,				September 30,
	2014		2013		2014		2013
(In millions)
Service cost			$	1			$	1
Interest cost	$	1		1	$	3		3
Expected return on plan assets		(1)		(1)		(3)		(3)
Amortization of unrecognized net loss				1				1
Amortization of unrecognized prior service benefit		(2)		(6)		(15)		(19)
Curtailment gain						(86)
Net periodic benefit cost	$	(2)	$	(4)	$	(101)	$	(17)