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EMPLOYEE BENEFIT PLANS - Asset Allocations by Asset Category and Level of Valuation Inputs with in Fair Value Hierarchy (Detail) - Defined Benefit Pension - USD ($) $ in Millions | Jan. 02, 2021 | Dec. 28, 2019
--- | --- | ---
Fair Value, Measurements, Recurring |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | $ 2,421.1 | $ 2,197.0
Defined Benefit Plan, Cash and Cash Equivalents | Fair Value, Measurements, Recurring |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 83.2 | 35.8
US Treasury and Government | Fair Value, Measurements, Recurring |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 821.6 | 741.6
Defined Benefit Plan, Equity Securities, Non-US | Fair Value, Measurements, Recurring |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 234.1 | 259.4
Defined Benefit Plan, Equity Securities, US | Fair Value, Measurements, Recurring |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 329.4 | 321.4
Corporate Debt Securities | Fair Value, Measurements, Recurring |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 867.6 | 751.5
Insurance contracts | Fair Value, Measurements, Recurring |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 41.7 | 39.0
Defined Benefit Plan, Other Assets | Fair Value, Measurements, Recurring |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 43.5 | 48.3
Level 1 |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 511.7 | 494.5
Level 1 | Defined Benefit Plan, Cash and Cash Equivalents |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 69.0 | 16.1
Level 1 | US Treasury and Government |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 285.8 | 271.5
Level 1 | Defined Benefit Plan, Equity Securities, Non-US |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 65.7 | 95.8
Level 1 | Defined Benefit Plan, Equity Securities, US |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 91.2 | 111.1
Level 1 | Corporate Debt Securities |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 0.0 | 0.0
Level 1 | Insurance contracts |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 0.0 | 0.0
Level 1 | Defined Benefit Plan, Other Assets |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 0.0 | 0.0
Level 2 |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 1,909.4 | 1,702.5
Level 2 | Defined Benefit Plan, Cash and Cash Equivalents |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 14.2 | 19.7
Level 2 | US Treasury and Government |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 535.8 | 470.1
Level 2 | Defined Benefit Plan, Equity Securities, Non-US |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 168.4 | 163.6
Level 2 | Defined Benefit Plan, Equity Securities, US |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 238.2 | 210.3
Level 2 | Corporate Debt Securities |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 867.6 | 751.5
Level 2 | Insurance contracts |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | 41.7 | 39.0
Level 2 | Defined Benefit Plan, Other Assets |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |
Fair value of plan assets | $ 43.5 | $ 48.3

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