Acquisitions - Additional Information (Detail) $ in Millions	3 Months Ended				6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 28, 2019 USD ($)	Jun. 29, 2019 USD ($)	Sep. 29, 2018 USD ($)	Jul. 01, 2017 USD ($)	Jun. 29, 2019 USD ($)	Sep. 28, 2019 USD ($)	Sep. 29, 2018 USD ($)	Dec. 29, 2018 USD ($)	Feb. 01, 2032 USD ($)
Business Acquisition [Line Items]
Net Sales	$ 3,633.1		$ 3,494.8			$ 10,728.0	$ 10,347.7
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	231.1		248.3			758.9	711.8
Goodwill	9,160.0					9,160.0		$ 8,956.7
Purchase price for acquisitions	6.2		$ 15.1			682.2	$ 521.9
Inventories, net	2,743.5					2,743.5		2,373.5
Business Combination, Contingent Consideration, Liability, Noncurrent	190.2					$ 190.2		169.2
Document Period End Date						Sep. 28, 2019
Industrial Segment
Business Acquisition [Line Items]
Goodwill	$ 2,000.6					$ 2,000.6		1,679.7
Equipment Solution Attachments Group (IES) [Member]
Business Acquisition [Line Items]
Business Acquisition, Goodwill, Expected Tax Deductible Amount		$ 2.4			$ 2.4
Purchase price for acquisitions					653.5
Fair Value, Net Asset (Liability)		$ 341.3			341.3
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		14 years
Nelson Fasteners [Member]
Business Acquisition [Line Items]
Purchase price for acquisitions				$ 424.2
Fair Value, Net Asset (Liability)		$ 211.8			211.8
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Purchase price for acquisitions					35.2			104.5
Fair Value, Net Asset (Liability)		$ 17.0			$ 17.0			$ 38.1
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					10 years
Number of Businesses Acquired					4			6
Forecast [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration, Liability, Noncurrent									$ 134.5
Minimum [Member] | Nelson Fasteners [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		12 years
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] | Forecast [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Percent of Sales, Liability, Noncurrent									2.50%
Maximum [Member] | Nelson Fasteners [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		15 years
Maximum [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life								14 years
Maximum [Member] | Forecast [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Percent of Sales, Liability, Noncurrent									3.50%
Goodwill [Member] | Equipment Solution Attachments Group (IES) [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets		$ 312.2			$ 312.2
Goodwill [Member] | Nelson Fasteners [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets		216.9			216.9
Goodwill [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets		18.2			18.2			$ 66.4
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		87.1			87.1
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			328.0
intangible assets [Member] | Nelson Fasteners [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets		167.0			167.0
intangible assets [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets								35.5
Customer Relationships [Member] | Equipment Solution Attachments Group (IES) [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets		304.0			304.0
Customer Relationships [Member] | Nelson Fasteners [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets		149.0			149.0
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		5.9			5.9			32.0
Equipment Solution Attachments Group (IES) [Member]
Business Acquisition [Line Items]
Fair Value, Net Asset (Liability)		81.0			81.0
Nelson Fasteners [Member]
Business Acquisition [Line Items]
Fair Value, Net Asset (Liability)		64.2			64.2
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Fair Value, Net Asset (Liability)		$ 6.1			$ 6.1			$ 13.4