Shareholders' Equity (Summary Of Share-Based Awards) (Details) (Share Based Incentive Awards [Member], USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
Mar. 30, 2013
Share Based Incentive Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding	1,477,235
Number of Shares, Exercisable	591,170
Number of Shares, Outstanding, Wtd. Avg. Exercise Price	$ 54.71
Number of Shares, Exercisable, Wtd. Avg. Exercise Price	$ 42.68
Number of Shares, Outstanding, Wtd. Avg. Remaining Contractual Term (years)	6 years 5 months 19 days
Number of Shares, Exercisable, Wtd. Avg. Remaining Contractual Term (years)	4 years 4 months 21 days
Outstanding Shares, Aggregate Intrinsic Value	$ 39.3
Exercisable Shars, Aggregate Intrinsic Value	$ 23.0

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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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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including 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 of difference between fair value of the underlying shares reserved for issuance and exercise price of fully vested and expected to vest options that are exercisable.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise prices of fully vested and expected to vest options outstanding.

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