FINANCIAL INSTRUMENTS - Pretax Effect of Cash Flow Hedge Accounting (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 03, 2021	Mar. 28, 2020
Derivative [Line Items]
Cost of sales	$ 2,632.8	$ 2,106.3
Interest expense	47.5	59.7
Cost of sales \| Foreign Exchange Contracts
Derivative [Line Items]
Hedged Items	3.8	(2.3)
Gain (loss) reclassified from OCI into Income	(3.8)	2.3
Cost of sales \| Interest Rate Swap
Derivative [Line Items]
Gain (loss) reclassified from OCI into Income	0.0	0.0
Interest expense \| Foreign Exchange Contracts
Derivative [Line Items]
Hedged Items	0.0	0.0
Gain (loss) reclassified from OCI into Income	0.0	0.0
Interest expense \| Interest Rate Swap
Derivative [Line Items]
Gain (loss) reclassified from OCI into Income	$ (1.1)	$ (4.5)

Derivative, Hedged Item, Gain (Loss) Effect on Income Statement

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- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

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- Definition

Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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