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Litigation and Contingencies Environmental Remediation Obligation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Accrual for Environmental Loss Contingencies [Roll Forward]
Remediation liability at beginning of the year	$ 22.6	$ 31.1
Changes in estimate	112.9	4.8
Amounts paid	(11.1)	(13.3)
Remediation liability at the end of the year	$ 124.4	$ 22.6

X

- Definition

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

+ References

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-Publisher FASB
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X

- Definition

Amount of cash outflow to settle environmental loss contingencies.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

The charge against earnings in the period for known or estimated future costs arising from requirements to perform environmental remediation activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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