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MERGER AND ACQUISITIONS - Estimated Fair Values of Major Assets Acquired and Liabilities Assumed (Detail) $ in Millions | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 01, 2017 USD ($) | Dec. 28, 2019 USD ($) | Dec. 29, 2018 USD ($) | Dec. 30, 2017 USD ($) Acquisition | Feb. 01, 2020 USD ($) | Jan. 03, 2020 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |
Business Acquisition, Pro Forma Revenue |  | $ 14,524.6 | $ 14,448.6 |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  | 685.4 | 524.6 | $ 2,583.5 |  |
Indefinite-Lived Trade Names |  | $ 2,186.0 | $ 2,199.0 |  |  |
Document Period End Date |  | Dec. 28, 2019 |  |  |  |
Number of businesses acquired during the period |  | 5 | 6 | 4 |  |
Series of Individually Immaterial Business Acquisitions in 2019 [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  | $ 40.8 |  |  |  |
Fair Value, Net Asset (Liability) |  | 19.1 |  |  |  |
Craftsman [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Fair Value, Net Asset (Liability) |  | 482.6 |  |  |  |
Business Combination, Consideration Transferred |  | $ 568.2 |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 17 years |  |  |  |
Business Acquisition, Goodwill, Expected Tax Deductible Amount |  | $ 442.7 |  |  |  |
Equipment Solution Attachments Group (IES) [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  | 653.5 |  |  |  |
Fair Value, Net Asset (Liability) |  | $ 344.7 |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 14 years |  |  |  |
Business Acquisition, Goodwill, Expected Tax Deductible Amount |  | $ 2.4 |  |  |  |
Acquisition |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  | $ 104.5 | $ 182.9 |  |
Fair Value, Net Asset (Liability) |  |  | 38.1 | 88.1 |  |
Nelson Fasteners [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  | 424.2 |  |  |  |
Fair Value, Net Asset (Liability) |  | 211.8 |  |  |  |
Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired | $ 1,860.0 |  |  |  |  |
Business Combination, Consideration Transferred |  | $ 1,858.0 |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 15 years |  |  |  |
Business Acquisition, Goodwill, Expected Tax Deductible Amount |  | $ 15.7 |  |  |  |
intangible assets [Member] | Craftsman [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 418.0 |  |  |  |
intangible assets [Member] | Equipment Solution Attachments Group (IES) [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 328.0 |  |  |  |
intangible assets [Member] | Acquisition |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 35.5 |  | 54.4 |  |
intangible assets [Member] | Nelson Fasteners [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 167.0 |  |  |  |
Cash [Member] | Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets |  | 20.0 |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net |  | 826.2 |  |  |  |
Accounts Receivable [Member] | Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets |  | 19.7 |  |  |  |
Inventories [Member] | Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets |  | 195.5 |  |  |  |
Prepaid Expenses and Other Current Assets [Member] | Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets |  | 27.1 |  |  |  |
Property, Plant and Equipment [Member] | Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 112.4 |  |  |  |
Trade names | Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 283.0 |  |  |  |
Customer relationships | Series of Individually Immaterial Business Acquisitions in 2019 [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 8.8 |  |  |  |
Customer relationships | Equipment Solution Attachments Group (IES) [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 304.0 |  |  |  |
Customer relationships | Acquisition |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  |  | 32.0 | 51.4 |  |
Customer relationships | Nelson Fasteners [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 149.0 |  |  |  |
Customer relationships | Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 548.0 |  |  |  |
Other Assets [Member] | Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 8.8 |  |  |  |
Accounts Payable [Member] | Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities |  | 70.3 |  |  |  |
Other Liabilities [Member] | Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities |  | 7.9 |  |  |  |
Accrued expense | Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities |  | 40.7 |  |  |  |
Deferred Income Tax Charge [Member] | Equipment Solution Attachments Group (IES) [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities |  | 78.3 |  |  |  |
Deferred Income Tax Charge [Member] | Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities |  | 269.4 |  |  |  |
Goodwill [Member] | Series of Individually Immaterial Business Acquisitions in 2019 [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 21.7 |  |  |  |
Goodwill [Member] | Craftsman [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 747.1 |  |  |  |
Goodwill [Member] | Equipment Solution Attachments Group (IES) [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 308.8 |  |  |  |
Goodwill [Member] | Acquisition |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  |  | $ 66.4 | $ 94.8 |  |
Goodwill [Member] | Nelson Fasteners [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | 216.9 |  |  |  |
Goodwill [Member] | Newell Tools [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  | $ 1,031.8 |  |  |  |
Minimum | Series of Individually Immaterial Business Acquisitions in 2019 [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 8 years |  |  |  |
Minimum | Acquisition |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 10 years |  | 10 years |  |
Minimum | Nelson Fasteners [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 12 years |  |  |  |
Maximum [Member] | Series of Individually Immaterial Business Acquisitions in 2019 [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 10 years |  |  |  |
Maximum [Member] | Acquisition |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 14 years |  | 15 years |  |
Maximum [Member] | Nelson Fasteners [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 15 years |  |  |  |
Equipment Solution Attachments Group (IES) [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Fair Value, Net Asset (Liability) |  | $ 77.9 |  |  |  |
Nelson Fasteners [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Fair Value, Net Asset (Liability) |  | 64.2 |  |  |  |
Craftsman [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Indefinite-Lived Trade Names |  | 396.0 |  |  |  |
Fair Value, Net Asset (Liability) |  | 40.2 |  |  |  |
Acquisition |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Fair Value, Net Asset (Liability) |  | $ 6.0 |  | $ 35.3 |  |
Subsequent Event [Member] | Consolidated Aerospace Manufacturing (CAM) [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Consideration Payable |  |  |  |  |  | $ 1,500.0
Business Combination, Contingent Consideration, Liability |  |  |  |  |  | $ 200.0
Forecast [Member] | Craftsman [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Consideration Payable |  |  |  |  | $ 234.0 |

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