Retirement Plans (Tables)

3 Months Ended

Mar. 31, 2013

Components of Total Net Periodic Benefit Cost

The components of total Net Periodic Benefit Cost associated with the Company’s defined benefit retirement plans are as follows:

	Three months ended
	March 31, 2013			March 31, 2012
Service cost	$	5.7		$	4.9
Interest cost		5.0			4.7
Expected return on plan assets		(3.9	)		(3.5	)
Amortization prior service credit		(0.2	)		(0.2	)
Amortization of actuarial loss		3.0			2.2
Net Periodic Benefit Cost	$	9.6		$	8.1