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Share-Based Payments Compensation Expense (Details) (Options and SOSARs, USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Options and SOSARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense (in dollars)	$ 11.1	$ 4.8
Tax benefit (in dollars)	(3.4)	(1.5)
After-tax compensation expense (in dollars)	$ 7.7	$ 3.3

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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