Supplementary Data (Schedule Of Restructuring Expense) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Dec. 31, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
Restructuring expense	$ 0us-gaap_RestructuringCosts	$ 0us-gaap_RestructuringCosts	$ 0us-gaap_RestructuringCosts	$ 0us-gaap_RestructuringCosts	$ (0.4)us-gaap_RestructuringCosts	$ 0.6us-gaap_RestructuringCosts	$ (5.3)us-gaap_RestructuringCosts	$ 2.9us-gaap_RestructuringCosts

Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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