Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 30, 2018

Accounting Policies [Abstract]

Property and Equipment at Cost and Depreciable Useful Lives

Cost and estimated useful lives of property and equipment by function are as follows:

Category	2018		2017		Life
	(In millions of dollars)
Land	$	3.8	$	3.8		—
Work in process	12.2		5.3			—
Buildings and improvements	65.3		64.9		15	to	45 years
Computer hardware and software	153.3		154.2		3	to	12 years
Equipment, furniture and fixtures	34.6		37.9			5	years
Leasehold improvements	25.5		25.7		The lesser of the life of the lease or 5 years.
Total property and equipment	$	294.7	$	291.8