Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 29, 2019

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	2019		2018		Life
	(In millions of dollars)
Land	$	—	$	3.8		—
Work in process	2.7		12.2			—
Buildings and improvements	13.0		65.3		15	to	40 years
Computer hardware and software	153.1		153.3		3	to	12 years
Equipment, furniture and fixtures	34.1		34.6			5	years
Leasehold improvements	22.9		25.5		The lesser of the life of the lease or 5 years.
Total property and equipment	$	225.8	$	294.7