Total Equity (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	Sep. 28, 2012	Dec. 31, 2011
Class of Stock [Line Items]
Common stock authorized, shares	200,000,000
Preferred stock authorized, shares	25,000,000
Market value of mutual fund investments, nonvested and subsequently vested stock and restricted stock in the rabbi trust	$ 37.1	$ 31.9
Amounts payable to the plan participants classified as other liabilities	19.5	16.9
Fair Value, Measurements, Recurring [Member]
Class of Stock [Line Items]
Market value of the assets held by the rabbi trust classified as other non-current assets	17.4	15.2
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Class of Stock [Line Items]
Market value of the assets held by the rabbi trust classified as other non-current assets	$ 17.4	$ 15.2