Employee Benefits (Tables)

3 Months Ended

Mar. 31, 2014

Components of Estimated Net Pension and Other Postretirement Benefit Plan (Income) Expense

The components of the estimated net pension and other postretirement benefits plan income for the three months ended March 31, 2014 and 2013 were as follows:

	Three Months Ended March  31,
	2014			2013
Pension (income) expense
Service cost	$	0.5		$	0.8
Interest cost		47.7			44.6
Expected return on plan assets		(63.1	)		(60.6	)
Amortization, net		7.8			12.6
Net pension income	$	(7.1	)	$	(2.6	)
Other postretirement benefits plan (income) expense
Service cost	$	1.1		$	1.8
Interest cost		4.2			4.1
Expected return on plan assets		(3.1	)		(3.0	)
Amortization, net		(6.4	)		(4.9	)
Net other postretirement benefits plan income	$	(4.2	)	$	(2.0	)