Acquisitions - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Apr. 01, 2017	Dec. 30, 2017	Mar. 01, 2032	Feb. 01, 2032	Feb. 01, 2020
Business Acquisition [Line Items]
Business Acquisition, Goodwill, Expected Tax Deductible Amount	$ 15.7
Document Period End Date	Mar. 31, 2018
Goodwill	$ 8,850.9		$ 8,776.1
Purchase price for acquisitions	1.2	$ 2,435.4
Fair Value, Net Asset (Liability)	482.6
Inventories, net	2,350.3		2,018.4
Industrial Segment
Business Acquisition [Line Items]
Goodwill	2,141.4		2,132.0
Nelson Fasteners [Member]
Business Acquisition [Line Items]
Business Combination, Consideration To Be Transferred	435.0
Newell Tools [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 1,858.0
Purchase price for acquisitions		$ 1,860.0
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Newell Tools [Member]
Business Acquisition [Line Items]
Business Acquisition, Goodwill, Expected Tax Deductible Amount			442.7
Total Consideration Paid for Acquisition	$ 916.2
Business Combination, Consideration Transferred	$ 568.2
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	17 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue	$ 293.0
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Purchase price for acquisitions			182.9
Fair Value, Net Asset (Liability)			$ 91.8
Scenario, Forecast [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Percent of Sales, Liability, Noncurrent				3.00%
Business Combination, Contingent Consideration, Liability, Noncurrent					$ 114.0
Scenario, Forecast [Member] | Subsequent Event [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Payable						$ 234.0
Minimum [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			10 years
Minimum [Member] | Scenario, Forecast [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Percent of Sales, Liability, Noncurrent					2.50%
Maximum [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			15 years
Maximum [Member] | Scenario, Forecast [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Percent of Sales, Liability, Noncurrent					3.50%
Goodwill [Member] | Newell Tools [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets	1,031.8
Goodwill [Member] | Newell Tools [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets	726.6
Goodwill [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets			$ 91.1
Customer Relationships [Member] | Newell Tools [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets	$ 548.0
Customer Relationships [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets			57.6
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Fair Value, Net Asset (Liability)			$ 37.9