Retirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2014

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)	2014						2013						2014			2013
Three Months Ended June 30,	US			Non-US			US			Non-US
Service cost	$	—		$	3.2		$	—		$	3.1		$	0.1		$	0.1
Interest cost	3.1			4.7			2.9			4.0			1.7			1.7
Expected return on plan assets	(4.4		)	(5.4		)	(4.5		)	(2.7		)	—			—
Amortization of unrecognized prior service benefit	(0.2		)	—			(0.2		)	—			(1.6		)	(1.6		)
Amortization of unrecognized loss	1.7			1.3			2.0			1.3			0.6			1.3
Net periodic benefit cost	$	0.2		$	3.8		$	0.2		$	5.7		$	0.8		$	1.5

	Pension benefits												Other post- retirement benefits
(millions of dollars)	2014						2013						2014			2013
Six Months Ended June 30,	US			Non-US			US			Non-US
Service cost	$	—		$	6.5		$	—		$	6.2		$	0.1		$	0.2
Interest cost	6.2			9.3			5.8			8.2			3.4			3.4
Expected return on plan assets	(8.8		)	(10.8		)	(9.1		)	(5.4		)	—			—
Amortization of unrecognized prior service benefit	(0.4		)	—			(0.4		)	—			(3.2		)	(3.2		)
Amortization of unrecognized loss	3.3			2.5			4.1			2.6			1.3			2.5
Net periodic benefit cost	$	0.3		$	7.5		$	0.4		$	11.6		$	1.6		$	2.9