Stock Repurchase Programs (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 30, 2011	Dec. 31, 2010	Jan. 01, 2010
Equity, Class of Treasury Stock [Line Items]
Number of stock repurchase programs authorized by the Board of Directors	2
Repurchase of outstanding common stock	$ 5.1	$ 184.2	$ 85.5
$600 Million Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount	600
Cumulative Repurchase of common stock - shares	56.6
Cumulative Repurchase of outstanding common stock	375.4
Shares available to be purchased under stock repurchase program	224.6
Repurchase of outstanding common stock		171.4
Purchase of treasury stock, shares		24.2
Rule 10b5-1 Program [Member]
Equity, Class of Treasury Stock [Line Items]
Cumulative Repurchase of common stock - shares	8.5
Cumulative Repurchase of outstanding common stock	101.3
Repurchase of outstanding common stock	0.6	7.4
Purchase of treasury stock, shares	0.1	0.9
Other Share Repurchases [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of outstanding common stock	$ 4.5	$ 5.4
Purchase of treasury stock, shares	0.9	0.7