Other Income Expense (Tables)

12 Months Ended

Dec. 31, 2011

Other Income and Expenses [Abstract]

Schedule of Other Nonoperating Income (Expense)

	Year Ended December 31,
(millions of dollars)	2011			2010			2009
Loss from disposal activities	$	21.5		$	—		$	—
Patent infringement settlement, net of legal costs incurred	(29.1		)	—			—
Environmental litigation settlement	—			28.0			—
BERU - Eichenauer equity investment gain	—			(8.0		)	—
Other	(0.5		)	2.4			(0.1		)
Total other (income) expense	$	(8.1	)	$	22.4		$	(0.1	)