Retirement and Postretirement Benefit Plans

6 Months Ended

Jun. 30, 2011

Retirement and Postretirement Benefit Plans [Abstract]

Retirement and Postretirement Benefit Plans

Note 12 — Retirement and Postretirement Benefit Plans

The following table sets forth the net periodic benefit cost for the Company’s retirement and postretirement benefit plans. The amounts for the three months and six months ended June 30, 2011 are based on updated actuarial calculations prepared during the second quarter of 2011. The net periodic benefit cost recorded for the three months ended and six months ended June 30, 2011 is the Company’s best estimate of each period’s proportionate share of the amounts to be recorded for the year ended December 31, 2011.

	Pension						Postretirement
	Three Months Ended						Three Months Ended
	June 30,						June 30,
	2011			2010			2011			2010
Components of net periodic benefit cost
Service cost	$	7.9		$	7.0		$	0.7		$	0.4
Interest cost		39.6			39.3			7.5			8.4
Expected return on plan assets		(57.5	)		(50.8	)		(1.5	)		—
Amortization of prior service cost (credit)		2.3			2.4			0.2			(0.4	)
Amortization of net actuarial loss		15.2			13.7			0.5			0.7
Net periodic benefit cost	$	7.5		$	11.6		$	7.4		$	9.1

	Pension						Postretirement
	Six Months Ended						Six Months Ended
	June 30,						June 30,
	2011			2010			2011			2010
Components of net periodic benefit cost
Service cost	$	16.2		$	16.5		$	1.2		$	1.1
Interest cost		79.4			79.0			16.2			17.5
Expected return on plan assets		(107.6	)		(100.1	)		(2.2	)		—
Amortization of prior service cost (credit)		4.7			4.7			(0.2	)		(0.7	)
Amortization of net actuarial loss		28.0			25.9			1.5			2.0
Net periodic benefit cost	$	20.7		$	26.0		$	16.5		$	19.9