Financing Receivables - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Jun. 29, 2019	Sep. 28, 2019	Sep. 29, 2018	Dec. 29, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Capital Leases, Future Minimum Payments Receivable	$ 204.4		$ 204.4
Capital Leases, Future Minimum Payments Receivable, Next Twelve Months	76.4		76.4
Capital Leases, Future Minimum Payments, Receivable in Two Years	59.6		59.6
Capital Leases, Future Minimum Payments, Receivable in Three Years	38.5		38.5
Capital Leases, Future Minimum Payments, Receivable in Four Years	19.3		19.3
Capital Leases, Future Minimum Payments, Receivable in Five Years	9.1		9.1
Capital Leases, Future Minimum Payments, Receivable Thereafter	1.5		1.5
Long-term Debt	3,911.9		3,911.9		$ 3,822.3
Sales-type Lease, Revenue	20.8		62.3
Lessor, Operating Lease, Payments to be Received	61.2		61.2
Lessor, Operating Lease, Payments to be Received, Next Rolling Twelve Months	$ 59.3		$ 59.3
Document Period End Date			Sep. 28, 2019
Deferred Revenue, Revenue Recognized			$ 81.2	$ 76.5
Number of Days Before Considered Past Due or Delinquent	90 days		90 days
Cash Investment Purchaser Allowed to Have in Transferors Receivables	$ 110.0		$ 110.0
Net receivables derecognized	73.1		73.1		100.1
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale, Gain (Loss) on Sale	0.8		2.8
Proceeds from transfers of receivables to the purchaser	107.2		329.7
Payment to the Purchaser	113.1		356.7
Deferred Revenue	211.7		211.7		202.0
Deferred Revenue, Current	104.1		104.1		98.6
Accounts Receivable, before Allowance for Credit Loss, Current	1,724.7		1,724.7		1,437.1
Financing Receivable, before Allowance for Credit Loss, Current	136.2		136.2
Other Receivables, Gross, Current	161.8		161.8		122.7
Trade Accounts And Notes Receivable Gross Current	2,022.7		2,022.7		1,709.8
Accounts Receivable, Allowance for Credit Loss, Current	(120.1)		(120.1)		(102.0)
Accounts and Financing Receivable, after Allowance for Credit Loss, Current	1,902.6		1,902.6		1,607.8
Financial Guarantee Insurance Contracts, Premium Received over Contract Period, Unearned Premium Revenue				$ 1,158.0
Lessor, Operating Lease, Payments to be Received, Two Years	1.4		1.4
Lessor, Operating Lease, Payments to be Received, Three Years	0.4		0.4
Lessor, Operating Lease, Payments to be Received, Four Years	0.1		0.1
Operating Leases, Income Statement, Lease Revenue	42.3		116.2
Sales-type Lease, Lease Income	8.2		24.7
Operating Leases, Future Minimum Payments Receivable, in Five Years	0.0		0.0
Operating Leases, Future Minimum Payments Receivable, Thereafter	0.0		0.0
Notes Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, before Allowance for Credit Loss, Current					150.0
Gross receivables sold
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfer of Financial Assets Accounted for as Sale, Amount Derecognized	418.8		1,278.9
Net receivables sold
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfer of Financial Assets Accounted for as Sale, Amount Derecognized		$ 296.3	956.6
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payment to the Purchaser, servicing fees	0.2		0.7
Other Assets [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Long-term trade financing receivables	142.3		142.3		$ 153.7
Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, before Allowance for Credit Loss, Current	76.4		76.4
Lease Agreements [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Revenue (Expense), Net	2.7		9.2
Other Income	$ 65.8		$ 187.7