Receivables - Components of Current Finance and Contract Receivables (Detail) - USD ($) $ in Millions	Dec. 29, 2018	Dec. 30, 2017
Receivables [Abstract]
Finance receivables	$ 538.1	$ 523.1
Contract receivables	99.5	98.1
Total finance and contract receivables, current	637.6	621.2
Allowances For Doubtful Accounts [Abstract]
Allowances for doubtful accounts, finance receivables	(19.6)	(17.7)
Allowances for doubtful accounts, contract receivables	(1.2)	(1.3)
Total allowances for doubtful accounts, finance and contract receivables, current	(20.8)	(19.0)
Total current finance and contract receivables – net	616.8	602.2
Finance receivables – net	518.5	505.4
Contract receivables – net	$ 98.3	$ 96.8

An amount representing an agreement for an unconditional promise by the maker to pay the Company (holder) a definite sum of money within one year from the balance sheet date (or the normal operating cycle, whichever is longer), net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section 45
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant