Consolidated Statement of Income (Unaudited) (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Consolidated Income Statement Parenthetical [Abstract]
Provision for (Benefit from) Income Taxes on Income (Loss) from Discontinued Operations	$ (4.9)	$ 0.3	$ (7.2)	$ 3.7
Provision for (Benefit From) Income Taxes on Gain (Loss) on Disposal of Discontinued Operations	$ (23.3)	$ 191.2	$ (23.1)	$ 190.9