Litigation and Contingencies Environmental Remediation (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 29, 2018	Dec. 30, 2017
Environmental Remediation Obligations [Abstract]
Environmental Remediation Expense	$ 4.8	$ 31.1
Environmental remediation accrual	22.6
Environmental remediation accrual, current	11.5
Environmental remediation accrual, noncurrent	$ 11.1

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

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