Retirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs

The components of net periodic benefit cost recorded in the Condensed Consolidated Statements of Operations are as follows:

	Pension benefits												Other post- retirement benefits
(millions of dollars)	2013						2012						2013			2012
Three Months Ended September 30,	US			Non-US			US			Non-US
Service cost	$	—		$	3.1		$	—		$	2.2		$	0.1		$	0.1
Interest cost	2.9			4.2			3.6			4.2			1.7			2.5
Expected return on plan assets	(4.6		)	(2.8		)	(4.7		)	(2.3		)	—			—
Amortization of unrecognized prior service benefit	(0.2		)	—			(0.2		)	—			(1.6		)	(1.6		)
Amortization of unrecognized loss	2.1			1.3			2.0			0.4			1.2			1.8
Net periodic benefit cost	$	0.2		$	5.8		$	0.7		$	4.5		$	1.4		$	2.8

	Pension benefits												Other post- retirement benefits
(millions of dollars)	2013						2012						2013			2012
Nine Months Ended September 30,	US			Non-US			US			Non-US
Service cost	$	—		$	9.3		$	—		$	6.8		$	0.3		$	0.4
Interest cost	8.7			12.4			10.8			12.9			5.1			7.6
Expected return on plan assets	(13.7		)	(8.2		)	(14.1		)	(6.9		)	—			—
Amortization of unrecognized prior service benefit	(0.6		)	—			(0.6		)	—			(4.8		)	(4.8		)
Amortization of unrecognized loss	6.2			3.9			6.1			0.9			3.7			5.2
Net periodic benefit cost	$	0.6		$	17.4		$	2.2		$	13.7		$	4.3		$	8.4