Receivables - Rollforward of Allowances for Doubtful Accounts for Finance and Contract Receivables (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Receivables [Abstract]
Finance receivables, Allowance for doubtful accounts, Beginning of year	$ 50.5	$ 39.9	$ 48.6	$ 38.2
Finance receivables, Provision	12.8	10.3	25.8	19.6
Finance receivables, Charge-offs	(12.5)	(9.2)	(25.4)	(18.8)
Finance receivables, Recoveries	1.7	1.7	3.4	3.6
Finance receivables, Currency Translation		(0.1)	0.1
Finance receivables, Allowance for doubtful accounts, End of period	52.5	42.6	52.5	42.6
Contract receivables, Allowance for doubtful accounts, Beginning of year	4.7	4.6	3.9	4.4
Contract receivables, Provision	0.6	0.2	1.9	0.6
Contract receivables, Charge-offs	(0.6)	(0.3)	(1.2)	(0.7)
Contract receivables, Recoveries		0.1	0.1	0.2
Contract receivables, Currency Translation	0.1	(0.1)	0.1
Contract receivables, Allowance for doubtful accounts, End of period	$ 4.8	$ 4.5	$ 4.8	$ 4.5