CONTINGENCIES - Additional Information (Detail) $ in Millions	3 Months Ended	12 Months Ended
	Apr. 01, 2017 USD ($)	Dec. 29, 2018 USD ($) sites	Jun. 30, 2018 USD ($)	Dec. 30, 2017 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Superfund Sites | sites		28
Reserve for environmental remediation costs		$ 58.1		$ 22.5
Reserve for environmental loss contingencies, EPA funded amount		$ 12.4
Environmental remediation. Period construction of treatment facility to be maintained		30 years
Undiscounted environmental liability expected to be paid 2013		$ 2.5
Accrual for Environmental Loss Contingencies, Undiscounted, Second Year		3.0
Undiscounted environmental liability expected to be paid in 2015		3.0
Undiscounted environmental liability expected to be paid in 2016		3.0
Undiscounted environmental liability expected to be paid in 2017		3.0
Undiscounted environmental liability expected to be paid thereafter		35.3
Leased Sites
Commitments and Contingencies Disclosure [Line Items]
Discounted environmental liability		39.4
Undiscounted environmental liability		49.8
Property, Plant and Equipment, Other Types
Commitments and Contingencies Disclosure [Line Items]
Environmental Remediation Expense	$ 17.1
Reserve for environmental remediation costs		246.6		$ 176.1
Reserve for environmental remediation costs, current		58.1
Reserve for environmental remediation costs, noncurrent		188.5
Reserve for environmental loss contingencies, obligation after EPA funding		234.2
Centredale Site [Member]
Commitments and Contingencies Disclosure [Line Items]
Reserve for environmental remediation costs			$ 77.7
Environmental Exit Costs, Anticipated Cost		$ 145.2
Minimum
Commitments and Contingencies Disclosure [Line Items]
Environmental liability discount rate		2.30%
Minimum | Property, Plant and Equipment, Other Types
Commitments and Contingencies Disclosure [Line Items]
Environmental Exit Costs, Anticipated Cost		$ 214.0
Maximum [Member]
Commitments and Contingencies Disclosure [Line Items]
Environmental liability discount rate		3.30%
Maximum [Member] | Property, Plant and Equipment, Other Types
Commitments and Contingencies Disclosure [Line Items]
Environmental Exit Costs, Anticipated Cost		$ 344.3
Cargo and Freight [Member]
Commitments and Contingencies Disclosure [Line Items]
Loss Contingency Accrual		$ 50.8