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Stock-Based Compensation (Performance Awards) (Narrative) (Details) (Performance Awards [Member], USD $)
In Millions, except Share data, unless otherwise specified
6 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jul. 02, 2011
Jul. 03, 2010
Jul. 02, 2011
2001 Incentive Stock and Awards Plan [Member]
years
Apr. 02, 2011
Restricted Stock Units [Member]
Jul. 02, 2011
Restricted Stock Units [Member]
Jan. 01, 2011
Restricted Stock Units [Member]
years
Jan. 02, 2010
Restricted Stock Units [Member]
years
Jan. 02, 2010
Restricted Stock Units [Member]
Weighted average contractual term (in years)     3          
Maximum stock percentage to be awarded     100.00%     100.00%    
Performance period for awards granted (in years)           1    
Awards granted vesting period (in years)             2  
Weighted-average grant date fair value granted $ 56.11 [1] $ 41.01            
Shares granted 279,000         169,921   65,819
Units granted vesting date February 2013       February 2012      
Shares vested 3,000     6,133        
Unrecognized compensation cost related to non-vested award     $ 19.8          
Cost expected to be recognized over weighted-average period     2.1          
Share Based Compensation By Share Based Payment Award Equity Instruments Other Than Options Shares Paid Out 0 0            
[1] Weighted-average