Other Expense (Tables)

3 Months Ended

Mar. 31, 2014

Other Income and Expenses [Abstract]

Schedule of other expense

Items included in other expense consist of:

	Three Months Ended March 31,
(millions of dollars)	2014			2013
Restructuring expense	$	39.5		$	—
Program termination agreement	—			11.3
Retirement related obligations	—			5.9
Other income	(0.7		)	(0.3		)
Other expense	$	38.8		$	16.9