Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2011

Benefit Plans

Components Of Net Periodic Benefit Cost

 

	Pension Benefits
	Three Months Ended June 30,						Six Months Ended June 30,
	2011			2010			2011			2010
(In millions)
Service cost	$	5		$	7		$	12		$	13
Interest cost		41			41			82			83
Expected return on plan assets		(47	)		(44	)		(94	)		(88	)
Amortization of unrecognized net loss		7			7			14			14
Net periodic benefit cost	$	6		$	11		$	14		$	22

	Other Postretirement Benefits
	Three Months Ended June 30,						Six Months Ended June 30,
	2011			2010			2011			2010
(In millions)
Service cost										$	1
Interest cost	$	2		$	3		$	4			6
Expected return on plan assets		(1	)		(1	)		(2	)		(2	)
Amortization of unrecognized net (gain) loss		(1	)		1						2
Amortization of unrecognized prior service benefit		(6	)		(6	)		(13	)		(12	)
Regulatory asset decrease		2			2			3			3
Net periodic benefit cost	$	(4	)	$	(1	)	$	(8	)	$	(2	)