Other Expense, Net (Tables)

12 Months Ended

Dec. 31, 2014

Other Income and Expenses [Abstract]

Schedule of Other Nonoperating Income (Expense)

	Year Ended December 31,
(millions of dollars)	2014			2013			2012
Restructuring expense	$	90.8		$	39.8		$	27.4
Intangible asset impairment	10.3			12.5			—
Pension settlement	3.1			—			—
Program termination agreement	—			11.3			—
Retirement related obligations	—			5.9			17.3
Loss from disposal activities	—			—			39.7
Other	(10.4		)	(6.9		)	0.3
Other expense, net	$	93.8		$	62.6		$	84.7