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Stock Compensation Plans (Details) - Stock Option & Stock Appreciation Rights [Member] - $ / shares	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 26, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning	$ 74.48	$ 66.80	$ 63.19
Granted
Exercised	50.15	50.77	29.15
Forfeited/Expired	84.57	51.12	70.58
Outstanding at end	48.94	$ 74.48	$ 66.80
Exercisable at end	48.76
Expected to vest	$ 51.46
Share-based Compensation Arrangement by Share-based Payment Award, Outstanding [Roll Forward]
Outstanding at beginning	2,737,000	4,061,000	4,731,000
Granted
Exercised	(397,000)	(716,000)	(474,000)
Forfeited/Expired	(1,948,000)	(608,000)	(196,000)
Outstanding at end	392,000	2,737,000	4,061,000
Exercisable at end	365,000
Expected to vest	27,000

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- Definition

The number of shares into which fully or partially vested stock options outstanding and SAR 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 stock options outstanding and SAR and currently exercisable under the stock option plan and SAR.

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- Definition

For presentations that combine terminations, the number of shares under stock options and SAR 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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- Definition

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

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- Definition

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

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

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- Definition

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

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

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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 and SAR can be converted under the option plan.

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

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

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

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