Share Plans (Schedule of Fair Value Assumptions for Performance Share Unit) (Details) - Performance Shares	12 Months Ended
Sep. 25, 2015	Sep. 26, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected stock price volatility	27.00%	28.00%
Peer group stock price volatility	32.00%	33.00%
Correlation of returns	14.00%	17.00%

Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

Name:	us-gaap_FairValueAssumptionsExpectedVolatilityRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration