Share Plans (Schedule of the Valuation Assumptions Used in the Conversion) (Details) - $ / shares			12 Months Ended
Jun. 28, 2013	Jun. 27, 2013	Sep. 25, 2015	Sep. 26, 2014	Jun. 27, 2014	Sep. 27, 2013
Weighted Average Assumptions
Expected share price volatility	32.00%	26.00%	29.00%	32.00%
Risk-free interest rate	0.99%	0.99%	1.72%	1.96%
Expected annual dividend per share	0.00%	1.65%	0.00%	0.00%
Expected life of options (in years)	3 years 9 months 18 days	3 years 9 months 18 days	5 years 4 months	5 years 6 months
Fair value per option		$ 18.04	$ 30.08	$ 17.38	$ 16.51
Share options outstanding		1,745,258	2,786,443	3,526,789	2,399,822	2,760,231

No definition available.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(iii)

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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-Publisher FASB

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

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-Topic 718

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-Subparagraph (c)(1)(i)-(ii)

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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-Name Accounting Standards Codification

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-Section S99

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-Subparagraph (SAB TOPIC 14.D.2)

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section D

-Subsection 2

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