Receivables - Components of Finance and Contract Receivables Beyond One Year (Detail) - USD ($) $ in Millions	Jan. 02, 2021	Dec. 28, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Finance and contract receivables, before allowance for credit losses, non-current	$ 1,570.1	$ 1,509.9
Allowances for credit losses:
Allowance for finance and contract receivables, non-current	(59.1)	(46.3)
Total long-term finance and contract receivables – net	1,511.0	1,463.6
Financing Receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
Finance and contract receivables, before allowance for credit losses, non-current	1,188.7	1,145.7
Allowances for credit losses:
Allowance for finance and contract receivables, non-current	(52.4)	(42.2)
Total long-term finance and contract receivables – net	1,136.3	1,103.5
Financing Receivables | Installment Receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
Finance and contract receivables, before allowance for credit losses, non-current	1,173.1	1,106.0
Allowances for credit losses:
Allowance for finance and contract receivables, non-current	(52.1)	(41.6)
Financing Receivables | Finance and Contract Leases
Financing Receivable, Allowance for Credit Loss [Line Items]
Finance and contract receivables, before allowance for credit losses, non-current	15.6	39.7
Unearned finance charges, non-current	2.5	8.2
Allowances for credit losses:
Allowance for finance and contract receivables, non-current	(0.3)	(0.6)
Contract Receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
Finance and contract receivables, before allowance for credit losses, non-current	381.4	364.2
Allowances for credit losses:
Allowance for finance and contract receivables, non-current	(6.7)	(4.1)
Total long-term finance and contract receivables – net	374.7	360.1
Contract Receivables | Installment Receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
Finance and contract receivables, before allowance for credit losses, non-current	199.7	195.5
Allowances for credit losses:
Allowance for finance and contract receivables, non-current	(3.1)	(1.8)
Contract Receivables | Finance and Contract Leases
Financing Receivable, Allowance for Credit Loss [Line Items]
Finance and contract receivables, before allowance for credit losses, non-current	181.7	168.7
Unearned finance charges, non-current	30.2	29.4
Allowances for credit losses:
Allowance for finance and contract receivables, non-current	$ (3.6)	$ (2.3)