MERGER AND ACQUISITIONS - Estimated Fair Values of Major Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017
Business Acquisition [Line Items]
Goodwill	$ 8,956.7	$ 8,776.1
Nelson Fasteners [Member]
Business Acquisition [Line Items]
Fair Value, Net Asset (Liability)	210.6
Newell Tools [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 1,858.0
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
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 | 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 | 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] | Newell Tools [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities	269.4
Goodwill [Member] | Nelson Fasteners [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets	219.5
Goodwill [Member] | Newell Tools [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets	$ 1,031.8
Maximum [Member] | Nelson Fasteners [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Craftsman [Member]
Business Acquisition [Line Items]
Fair Value, Net Asset (Liability)	$ 40.2
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Fair Value, Net Asset (Liability)	$ 13.0	$ 35.3