Litigation and Contingencies Environmental Remediation (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 30, 2019	Mar. 31, 2018
Accrual for Environmental Loss Contingencies [Roll Forward]
Remediation liability at beginning of the year	$ 22.6	$ 31.1
Changes in estimate	0.0	0.9
Amounts paid	(2.3)	(2.8)
Remediation liability at the end of the quarter	20.3	$ 29.2
Environmental remediation accrual, current	9.2
Environmental remediation accrual, noncurrent	$ 11.1

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

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Amount of expense (reversal of expense) which increases (decreases) the accrual for environmental loss contingencies from revisions in estimates to existing obligations. Excludes changes related to business acquisitions, divestitures, or currency movement.

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Amount of cash outflow to settle 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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