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Income Taxes (Narratives) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2018	Dec. 29, 2017
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Tax benefit from revaluation of net deferred tax liabilities	$ 56.5
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Provisional Undistributed Accumulated Earnings Of Foreign Subsidiary		$ 147.5
Provisional income tax expense	14.7	$ 14.7
Reasonably possible reduction within next 12 months	0.9
Unrecognized tax benefit	$ 5.3

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Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Liability, Provisional Income Tax (Expense) Benefit

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Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit)

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The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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