Pension and Postretirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2012

Compensation and Retirement Disclosure [Abstract]

Components of net periodic benefit cost

The components of net periodic benefit cost were as follows (in millions):

	For the Three Months Ended September 30,
	2012			2011			2012			2011
	Pension Benefits						Other Benefits
Service cost	$	1.4		$	1.3		$	—		$	0.2
Interest cost	4.3			4.5			0.1			0.2
Expected return on plan assets	(4.7		)	(4.7		)	—			—
Amortization of prior service cost	0.1			0.1			(0.8		)	(0.4		)
Amortization of net loss	2.1			1.7			0.4			0.3
Settlements or curtailments	1.0			0.1			—			—
Total net periodic benefit cost	$	4.2		$	3.0		$	(0.3	)	$	0.3

	For the Nine Months Ended September 30,
	2012			2011			2012			2011
	Pension Benefits						Other Benefits
Service cost	$	4.1		$	4.0		$	0.2		$	0.6
Interest cost	12.9			13.5			0.4			0.7
Expected return on plan assets	(14.1		)	(14.2		)	—			—
Amortization of prior service cost	0.3			0.3			(2.0		)	(1.4		)
Amortization of net loss	6.5			5.2			1.0			0.9
Settlements or curtailments (1)	7.3			1.7			—			—
Total net periodic benefit cost	$	17.0		$	10.5		$	(0.4	)	$	0.8

(1) Settlements and curtailments in the nine months ended September 30, 2012 include a $6.3 million settlement charge related to actuarial losses recognized upon transition of a pension obligation to the acquirer of the Lennox Hearth Products business (“Hearth business”).