Receivables - Aging of Finance and Contract Receivables (Detail) - USD ($) $ in Millions	Mar. 28, 2020	Dec. 28, 2019
Finance Receivables
Financing Receivable, Past Due [Line Items]
Past due	$ 50.2	$ 53.1
Total Not Past Due	1,635.2	1,642.4
Total	1,685.4	1,695.5
Greater Than 90 Days Past Due and Accruing	16.4	17.2
Finance Receivables | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	18.0	19.7
Finance Receivables | 60-90 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	11.5	12.0
Finance Receivables | Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	20.7	21.4
Contract Receivables
Financing Receivable, Past Due [Line Items]
Past due	4.1	3.9
Total Not Past Due	452.1	462.5
Total	456.2	466.4
Greater Than 90 Days Past Due and Accruing	0.4	0.5
Contract Receivables | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	1.8	1.5
Contract Receivables | 60-90 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	0.9	0.9
Contract Receivables | Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	$ 1.4	$ 1.5