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Litigation and Contingencies Environmental Remediation (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019
Environmental Exit Cost [Line Items]
Site Contingency, Recovery from Third Party of Environmental Remediation Cost	$ 55.0
Accrual for Environmental Loss Contingencies [Roll Forward]
Remediation liability at beginning of the year	124.4	$ 22.6
Changes in estimate	0.0	0.0
Amounts paid	(17.7)	(5.3)
Remediation liability at the end of the quarter	106.7	$ 17.3
Environmental remediation accrual, current	34.5
Environmental remediation accrual, noncurrent	$ 72.2

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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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