Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Apr. 01, 2018

Goodwill and Other Intangible Assets [Abstract]

Acquired intangible assets subject to amortization

Intangible assets subject to amortization as of April 1, 2018 and December 31, 2017 were as follows:

	Weighted Average Useful Life (Years)		Apr. 1, 2018				Dec. 31, 2017
			Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
			(millions of dollars)
Tradenames		34	$	199.8	$	22.1	$	199.8	$	20.7
Technology		12		18.8		5.2		18.8		4.8
Patents and trademarks		17		6.4		5.3		6.4		5.3
Customer relationships		30		4.5		2.4		4.5		2.2
		28	$	229.5	$	35.0	$	229.5	$	33.0