Commitments and Contingencies (Details) $ in Millions											3 Months Ended		12 Months Ended
	Sep. 02, 2016 claim	Oct. 21, 2015 claim	Oct. 21, 2014 plaintiff	Sep. 18, 2014 plaintiff	Sep. 17, 2012 plaintiff	Jun. 01, 2012 plaintiff claim subsidiary	Jan. 02, 2009 plaintiff subsidiary	Jun. 27, 2008 claim	Oct. 14, 2004 plaintiff subsidiary	Sep. 25, 2003 USD ($)	Sep. 27, 2002 USD ($)	Sep. 28, 2001 USD ($)	Dec. 29, 2017 USD ($)	Dec. 30, 2016 USD ($)	Jan. 01, 2016 USD ($) claim	Dec. 31, 1980 subsidiary	Sep. 28, 2018 USD ($)	Mar. 15, 2018 claim
DBCP Litigation
Commitments and Contingencies Disclosure [Line Items]
Number of defendants | subsidiary						1
Number of plaintiffs | plaintiff			2,600			3,000
Claims dismissed				6	229			1,329
New claims filed | claim						8
Number of claims appealed	229	6	57
Number of pending claims | claim																		285
Costa Rican Residents | DBCP Litigation
Commitments and Contingencies Disclosure [Line Items]
Number of defendants | subsidiary							3		2
Number of plaintiffs | plaintiff							461		2,600
Kunia Well Site
Commitments and Contingencies Disclosure [Line Items]
Number of plaintiffs | subsidiary																1
Accrual for environmental loss contingencies, period increase (decrease)											$ 7.0	$ 15.0	$ 0.4	$ 0.4	$ (0.8)
Kunia Well Site cleanup operation, accrual for the expected future clean-up costs											$ 26.1	$ 19.1
Accrual for environmental loss contingencies, term										10 years
Kunia Well Site cleanup operation, undiscounted estimated remediation costs associated with the cleanup																	$ 13.7
Accrual for environmental loss contingencies, undiscounted, due within one year																	0.3
Accrual for environmental loss contingencies, undiscounted, due in second year																	1.1
Accrual for environmental loss contingencies, undiscounted, due in third year																	1.1
Accrual for environmental loss contingencies, undiscounted, due in fourth year																	1.1
Accrual for environmental loss contingencies, undiscounted, due in fifth year																	0.9
Kunia Well Site | Other long-term liabilities
Commitments and Contingencies Disclosure [Line Items]
Kunia Well Site cleanup operation, accrual for the expected future clean-up costs																	13.4
Kunia Well Site | Accounts payable and accrued expenses
Commitments and Contingencies Disclosure [Line Items]
Kunia Well Site cleanup operation, accrual for the expected future clean-up costs																	0.3
Kunia Well Site | Minimum
Commitments and Contingencies Disclosure [Line Items]
Kunia Well Site cleanup operation, accrual for the expected future clean-up costs										$ 12.9
Kunia Well Site cleanup operation, undiscounted estimated remediation costs associated with the cleanup																	13.7
Kunia Well Site | Maximum
Commitments and Contingencies Disclosure [Line Items]
Kunia Well Site cleanup operation, accrual for the expected future clean-up costs										$ 25.4
Kunia Well Site cleanup operation, undiscounted estimated remediation costs associated with the cleanup																	$ 28.7
Costa Rica | DBCP Litigation
Commitments and Contingencies Disclosure [Line Items]
New claims filed | claim															2
Panama and Ecuador | DBCP Litigation
Commitments and Contingencies Disclosure [Line Items]
Number of pending claims | claim																		2