Annual report pursuant to Section 13 and 15(d)

Earnings Per Share (Narrative) (Details)

v2.4.0.6
Earnings Per Share (Narrative) (Details)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Jan. 01, 2011
Jan. 02, 2010
Stock Options [Member]
     
Earnings Per Share [Line Items]      
Stock options excluded from computations of earnings per share 0.5 1.9 4.1
Performance-Based [Member] | Restricted Stock Units (RSUs) [Member]
     
Earnings Per Share [Line Items]      
Stock options excluded from computations of earnings per share 0.5 0.5 0.5