Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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The addition or reduction in the number of reserved shares that could potentially be issued under the option plan attributable to reasons other than grants, exercises, forfeitures, and expirations during the reporting period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest options outstanding.

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average price at which grantees could acquire or could have acquired the underlying shares with respect to any other type of change in shares reserved for issuance.

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Number of share options (or share units) exercised during the current period.

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Share Plans (Schedule of Share Option Activity) (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	12 Months Ended
	Jun. 28, 2013	Sep. 26, 2014	Sep. 27, 2013	Jun. 27, 2013
Share Option Activity [Roll Forward]
Beginning balance		2,760,231		1,745,258
Granted		675,921
Converted from Questcor Acquisition		1,292,736
Exercised		(878,330)
Expired/Forfeited		(323,769)
Ending balance	2,399,822	3,526,789		1,745,258
Share options vested and unvested expected to vest		3,362,751
Share options exerciseable	550,097	832,680
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted-average exercise price, outstanding share options	$ 35.94	$ 36.84	$ 37.30
Weighted-average exercise price, granted share options		$ 52.63
Weighted-average exercise price, converted from Questcor acquisition, share options		$ 25.08
Weighted-average exercise price, exercised share options		$ 30.96
Weighted-average exercise price, expired and forfeited share options		$ 41.83
Weighted-average exercise price, vested and unvested expected to vest share options		$ 36.27
Weighted-average exercise price, exercisable share options	$ 30.94	$ 31.32
Weighted-average remaining contractual term, outstanding share options	8 years 0 months 0 days	6 years 4 months 24 days
Weighted-average remaining contractual term, vested and unvested expected to vest share options		6 years 6 months
Weighted-average remaining contractual term, exercisable share options	5 years 11 months 0 days	4 years 8 months 12 days
Aggregate intrinsic value, outstanding share options	$ 22.9	$ 187.5
Aggregate intrinsic value, vested and unvested expected to vest share options		180.7
Aggregate intrinsic value, exercisable share options	$ 8.0	$ 48.8