DERIVATIVE FINANCIAL INSTRUMENTS - Detail Pre-tax Amounts Reclassified from Accumulated Other Comprehensive Loss into Earnings for Active Derivative Financial Instruments (Detail) - USD ($) $ in Millions		9 Months Ended	12 Months Ended
		Sep. 28, 2019	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017	Jan. 03, 2020
Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Hedging Activities Effect Net Of Tax			$ (97.3)	$ (63.3)
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months			7.4
Gain (Loss) reclassified from OCI to income (Effective Portion)			13.1	15.4	$ (4.7)
Cash Flow Hedging [Member] | Interest Rate Contracts | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) recorded in OCI			40.5	(33.1)	8.4
Gain (Loss) reclassified from OCI to income (Effective Portion)			16.2	15.3	0.0
Gain (Loss) recognized in income (Ineffective Portion)			0.0	0.0	0.0
Cash Flow Hedging [Member] | Interest Rate Contracts | Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) reclassified from OCI to income (Effective Portion)			0.0	0.0
Cash Flow Hedging [Member] | Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) recorded in OCI			16.7	(35.9)	66.6
Gain (Loss) recognized in income (Ineffective Portion)	[1]		0.0	0.0	0.0
Cash Flow Hedging [Member] | Foreign Exchange Contracts | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) reclassified from OCI to income (Effective Portion)			0.0	0.0
Cash Flow Hedging [Member] | Foreign Exchange Contracts | Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) reclassified from OCI to income (Effective Portion)			6.5	17.9	$ 8.4
Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) reclassified from OCI to income (Effective Portion)		$ (1.0)
Cash Flow Hedging [Member] | Interest Rate Swap [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) reclassified from OCI to income (Effective Portion)			$ 16.2	$ 15.3
Subsequent Event [Member] | Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Hedging Activities Effect Net Of Tax						$ 20.5

[1]

2017 (Millions of Dollars)   Gain (Loss)  Recorded in OCI   Classification of Gain (Loss) Reclassified from OCI to Income   Gain (Loss) Reclassified from OCI to Income (Effective Portion)   Gain (Loss) Recognized in Income (Ineffective Portion*) Interest Rate Contracts   $ (8.4 )   Interest expense   $ —
  $ —
Foreign Exchange Contracts   $ (66.6 )   Cost of sales   $ 8.4
  $ —
* Includes ineffective portion and amount excluded from effectiveness testing on derivatives.
A summary of the pre-tax effect of cash flow hedge accounting on the Consolidated Statements of Operations for 2019 and 2018 is as follows:   2019   2018 (Millions of dollars) Cost of Sales   Interest Expense   Cost of Sales   Interest Expense Total amount in the Consolidated Statements of Operations in which the effects of the cash flow hedges are recorded $ 9,636.7
  $ 284.3
  $ 9,131.3
  $ 277.9
Gain (loss) on cash flow hedging relationships:
 
        Foreign Exchange Contracts:
 
        Hedged Items $ 6.5
  $ —
  $ 17.9
  $ —
Gain (loss) reclassified from OCI into Income $ (6.5 )   $ —
  $ (17.9 )   $ —
Interest Rate Swap Agreements:
 
        Gain (loss) reclassified from OCI into Income ¹ $ —
  $ (16.2 )   $ —
  $ (15.3 ) ¹ Inclusive of the gain/loss amortization on terminated derivative financial instruments.