Pension Plans, Postretirement and Other Employee Benefits

6 Months Ended

Jun. 30, 2011

Pension Plans, Postretirement and Other Employee Benefits [Abstract]

Pension Plans, Postretirement and Other Employee Benefits

(10)   Pension Plans, Postretirement and Other Employee Benefits

Net periodic pension costs (income) and postretirement benefit costs (income) consist of the following components:

	Three Months Ended June 30,
	Pension												Postretirement
	2011						2010						2011			2010
	US			Foreign			US			Foreign			US			US
	(Millions)
Service cost — benefits earned during the period	$	—		$	1		$	—		$	2		$	—		$	1
Interest cost		5			5			5			4			2			2
Expected return on plan assets		(6	)		(5	)		(5	)		(5	)		—			—
Net amortization:
Actuarial loss		1			2			1			1			1			1
Prior service cost (credit)		—			1			—			1			(2	)		(2	)
Net pension and postretirement costs	$	—		$	4		$	1		$	3		$	1		$	2

	Six Months Ended June 30,
	Pension												Postretirement
	2011						2010						2011			2010
	US			Foreign			US			Foreign			US			US
	(Millions)
Service cost — benefits earned during the period	$	—		$	3		$	—		$	3		$	—		$	1
Interest cost		10			10			10			9			4			4
Expected return on plan assets		(11	)		(10	)		(10	)		(10	)		—			—
Net amortization:
Actuarial loss		2			3			2			2			2			2
Prior service cost (credit)		—			1			—			1			(3	)		(3	)
Net pension and postretirement costs	$	1		$	7		$	2		$	5		$	3		$	4

For the six months ended June 30, 2011, we made pension contributions of $8 million for our domestic pension plans and $11 million for our foreign pension plans. Based on current actuarial estimates, we believe we will be required to make approximately $25 million in contributions for the remainder of 2011. Pension contributions beyond 2011 will be required, but those amounts will vary based upon many factors, including the performance of our pension fund investments during 2011.

We made postretirement contributions of approximately $4 million during the first six months of 2011. Based on current actuarial estimates, we believe we will be required to make approximately $6 million in contributions for the remainder of 2011.

The assets of some of our pension plans are invested in trusts that permit commingling of the assets of more than one employee benefit plan for investment and administrative purposes. Each of the plans participating in the trust has interests in the net assets of the underlying investment pools of the trusts. The investments for all our pension plans are recorded at estimated fair value, in compliance with the recent accounting guidance on fair value measurement.