Restructuring Activities and Related Impairments (Schedule Of Restructuring Reserve By Type Of Cost) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Oct. 02, 2020	Sep. 27, 2019	Oct. 02, 2020	Sep. 27, 2019
Restructuring Cost and Reserve [Line Items]
Costs incurred	$ 27.7	$ 1.9	$ 99.9	$ 8.7
Cost of sales
Restructuring Cost and Reserve [Line Items]
Costs incurred	8.6	0.4	35.3	2.2
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Costs incurred	$ 19.1	$ 1.5	$ 64.6	$ 6.5

Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration