Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Millions, except Per Share data	Oct. 01, 2011	Dec. 31, 2010	Oct. 02, 2010
ASSETS
PROPERTY, PLANT AND EQUIPMENT, accumulated depreciation and amortization	$ 597.8	$ 553.1	$ 547.9
EQUITY:
Preferred stock, par value	$ 0.01	$ 0.01	$ 0.01
Preferred stock, shares authorized	1.0	1.0	1.0
Preferred stock, shares issued	0	0	0
Common stock, par value	$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized	200.0	200.0	200.0
Common stock, shares issued	80.9	86.4	158.5
Treasury stock, shares	0	0	71.4