Income Taxes Components (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Components of Income From Continuing Operations Before Income Taxes [Abstract]
Income from Continuing Operations Before Provision for Income Taxes	$ 318.4	$ 254.8	$ 629.5	$ 554.3
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Provision for Income Taxes	26.0	37.7	56.3	89.7
Excess income tax benefits from stock-based compensation plans recognized in equity			$ 6.0	$ 13.8