Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Narrative) (Details)

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Earnings Per Share (Narrative) (Details)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Apr. 02, 2011
Stock Options [Member]
   
Earnings Per Share [Line Items]    
Stock options excluded from computation of earnings per share 0.9 1.0
Performance-Based [Member] | Restricted Stock Units (RSUs) [Member]
   
Earnings Per Share [Line Items]    
Stock options excluded from computation of earnings per share 0.4 0.3