Employee benefit plans

9 Months Ended

Sep. 30, 2012

Employee benefit plans

Note 10 - Employee benefit plans:

Defined benefit plans - The components of our net periodic defined benefit pension cost are presented in the table below.

	Three months  ended September 30,						Nine months ended September 30,
	2011			2012			2011			2012
	(In millions)
Service cost	$	2.8		$	2.5		$	8.3		$	7.7
Interest cost		6.9			6.2			20.5			19.1
Expected return on plan assets		(5.8	)		(5.5	)		(17.2	)		(16.5	)
Amortization of unrecognized:
Prior service cost		.3			.4			1.1			1.2
Net transition obligations		.2			.1			.4			.3
Recognized actuarial losses		1.9			2.3			5.6			6.9
Total	$	6.3		$	6.0		$	18.7		$	18.7

Other postretirement benefits - The components of our net periodic other postretirement benefit cost are presented in the table below.

	Three months  ended September 30,						Nine months  ended September 30,
	2011			2012			2011			2012
	(In millions)
Service cost	$	.1		$	.1		$	.2		$	.2
Interest cost		.2			.1			.7			.6
Amortization of prior service credit		(.6	)		(.5	)		(1.7	)		(1.4	)
Recognized actuarial losses		—			.1			—			.1
Total	$	(.3	)	$	(.2	)	$	(.8	)	$	(.5	)

Contributions - We expect to contribute the equivalent of $29.1 million and $1.7 million, respectively, to all of our defined benefit pension plans and other postretirement benefit plans during 2012.