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As of the balance sheet date, the total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of expected to vest options net of forfeiture rate.

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As of the balance sheet date, the number of shares into which expected to vest stock options net of forfeiture rate can be converted under the option plan.

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

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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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The weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect during the reporting period as a result of the occurrence of a terminating event specified in the contractual agreement of the plan.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The liabilities paid during the accounting period for equity-based compensation.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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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.

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Discloses use of the simplified method to calculate the expected term that stock option awards under the specified plan will exist before being exercised or terminated, the reason and justification for its use, and the periods for which the method was used if it was not used in all periods presented.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Section D
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The estimated measure of the maximum 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.

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The estimated measure of the minimum 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.

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

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

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The range of expected volatilities used and the weighted-average expected volatility for an entity using a valuation technique with different volatilities during the contractual term.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of vested portions of options outstanding and currently exercisable under the option plan as of the balance sheet date.

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The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.

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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.

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The weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated during the reporting period due to noncompliance with plan terms during the reporting period.

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

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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 stock options awarded under the plan during the reporting period.

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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan.

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As of the balance sheet date, the total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of fully vested and expected to vest options that are exercisable.

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The number of exercisable share options (fully vested and expected to vest) that may be converted as of the balance sheet date.

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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SHARE-BASED COMPENSATION Details (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 02, 2011 years	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010	Jan. 01, 2011
Share-based Compensation
Authorized Shares	2,200		2,200		1,300
Fair Value Assumptions
Risk-free interest rate, mimimum			0.05%	1.61%
Risk-free interest rate, maximum			4.84%	0.32%
Weighted-average dividend yield			1.07%	0.95%
Volatility factor, mimimum			0.355%	0.355%
Volatility factor, maximum			0.434%	0.398%
Weighted-average volatility			0.432%	0.396%
Expected term			1.5 years	6.3 years
Forfeiture rate			3.59%	2.70%
Stock Option Plans Activity and Related Information [Roll Forward]
Outstanding beginning of period, Shares	1,817	1,979
Outstanding beginning of period, Weighted-Average Exercise Price	$ 27.95	$ 26.80
Granted, Shares	113	157
Granted, Weighted-Average Exercise Price	$ 43.43	$ 29.03	$ 43.43	$ 29.03
Exercised, Shares	(117)	(140)
Exercised, Weighted Average Exercise Price	$ 26.45	$ 16.99	$ 26.45	$ 16.99
Forfeited, Shares	(9)	(21)
Forfeited, Weighted-Average Exercise Price	$ 36.81	$ 42.33	$ 36.81	$ 42.33
Outstanding end of period, Shares	1,804	1,975	1,804	1,975
Outstanding end of period, Weighted-Average Exercise Price	$ 28.97	$ 27.49	$ 28.97	$ 27.49
Expected to vest after applying forfeiture rate, Shares	1,780	1,943	1,780	1,943
Expected to vest after applying forfeiture rate, Weighted-Average Exercise Price	$ 28.99	$ 27.57	$ 28.99	$ 27.57
Vested and exercisable end of period, Shares	1,255	1,214	1,255	1,214
Vested and exercisable end of period, Weighted-Average Exercise Price	$ 30.05	$ 30.08	$ 30.05	$ 30.08
Summary of Weighted Average Remaining Contractual Term and Aggregate Intrinsic Value
Outstanding end of period, Weighted-Average Remaining Cantractual Term	5.58
Outstanding end of period, Aggregate Intrinsic Value	$ 34,316,000		$ 34,316,000
Expected to vest after applying forfeiture rate, Weighted-Average Remaining Contractual Term	5.54
Expected to vest after applying forfeiture rate, Aggregate Intrinsic Value	33,821,000		33,821,000
Vested and exercisable end of period, Weighted-Average Remaining Contractual Term	4.46
Vested and exercisable end of period, Aggregate Intrinsic Value	22,547,000		22,547,000
Total intrinsic value of options exercised	1,400,000	1,000,000	1,400,000	1,000,000
Total share-based liabilities paid	0		0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Nonvested at beginning of period, Shares	128	72
Nonvested at beginning of period, Weighted-Average Grant Date Fair Value	$ 31.86	$ 40.12
Awarded, Shares	68	101
Awarded, Weighted-Average Grant Data Fair Value	$ 43.40	$ 29.89
Vested, Shares	(3)	(36)
Vested, Weighted-Average Date Fair Value	$ 39.12	$ 40.86
Forfeited, Shares	(20)	0
Forfeited, Weighted-Average Grant Data Fair Value	$ 47.41	$ 48.87	$ 47.41	$ 48.87
Nonvested at end of period, Shares	173	137	173	137
Nonvested at the end of period, Weighted-Average Grant Date Fair Value	$ 34.44	$ 32.58	$ 34.44	$ 32.58
Minimum
Fair Value Assumptions
Dividend yield			0.65%	0.65%
Maximum
Fair Value Assumptions
Dividend yield			1.23%	1.72%
Options
Share-based Compensation
Authorized Shares	1,600		1,600
Summary of Weighted Average Remaining Contractual Term and Aggregate Intrinsic Value
Total unrecognized compensation cost related to nonvested share-based compensation	3,300,000		3,300,000
Total unrecognized compensation cost, reconginzed over a weighted-average period	1.83
Awards
Share-based Compensation
Authorized Shares	600		600
Summary of Weighted Average Remaining Contractual Term and Aggregate Intrinsic Value
Total unrecognized compensation cost related to nonvested share-based compensation	$ 4,200,000		$ 4,200,000
Total unrecognized compensation cost, reconginzed over a weighted-average period	2.62