Pension and Other Postretirement Benefit Plans (Tables)

15 Months Ended

Mar. 31, 2013

Components Of Net Periodic Pension Cost

The components of net periodic pension cost are as follows:

	Three Months Ended March 31,
	2013			2012
(dollars in millions)
Service cost, net of employee contributions	$	7.5		$	6.9
Interest cost		4.6			4.8
Expected return on plan assets		(6.5	)		(5.8	)
Amortization		3.4			2.5
Net periodic pension cost	$	9.0		$	8.4