Employee Retirement Benefits (Tables)

3 Months Ended

Mar. 31, 2012

Components of Net Periodic Costs for Qualified and Supplemental Pension Plans

The following summarizes the components of net periodic costs for our qualified and supplemental pension plans:

(In millions)	Three months ended March 31,
	2012			2011
Service cost	$	3		$	3
Interest cost		3			3
Expected return on plan assets		(4	)		(4	)
Amortization of actuarial loss and prior service cost		2			1
Net periodic benefit cost	$	4		$	3