Summary of Significant Accounting Policies (Adjustments in Consolidated Statement of Operations) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jul. 01, 2011	Apr. 01, 2011	Dec. 31, 2010	Oct. 01, 2010	Jul. 02, 2010	Apr. 02, 2010	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cost of sales									$ 5,259.0	[1]	$ 4,319.2	[1]	$ 3,879.4	[1]
Operating income									230.1	[1]	214.1	[1]	166.2	[1]
Income tax provision									(42.7)	[1]	(46.7)	[1]	(35.8)	[1]
Net income including noncontrolling interest									67.1	[1]	69.1	[1]	47.7	[1]
Net income attributable to Company common shareholders	0.6	(2.1)	33.2	34.0	32.9	16.0	21.8	(9.3)	65.7	[1],[2]	61.4	[1],[2]	39.5	[1],[2]
Earnings per common share - basic	$ 0.01	$ (0.04)	$ 0.64	$ 0.65	$ 0.63	$ 0.31	$ 0.42	$ (0.18)	$ 1.27	[1],[3]	$ 1.18	[1],[3]	$ 0.76	[1],[3]
Earnings per common share - assuming dilution	$ 0.01	$ (0.04)	$ 0.61	$ 0.63	$ 0.62	$ 0.30	$ 0.41	$ (0.18)	$ 1.23	[1]	$ 1.16	[1]	$ 0.75	[1]
As Originally Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cost of sales													3,801.6
Operating income													244.0
Income tax provision													(61.5)
Net income including noncontrolling interest													99.8
Net income attributable to Company common shareholders													91.6
Earnings per common share - basic													$ 1.76
Earnings per common share - assuming dilution													$ 1.74
Adjustments [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cost of sales													77.8
Operating income													(77.8)
Income tax provision													25.7
Net income including noncontrolling interest													(52.1)
Net income attributable to Company common shareholders													$ (52.1)
Earnings per common share - basic													$ (1.00)
Earnings per common share - assuming dilution													$ (0.99)

[1] See Note 22 -Restatement of Consolidated Financial Statements

[2] Numerator

[3] Under the two class method, Earnings per share — basic reflects undistributed earnings per share for both common stock and unvested share-based payment awards (restricted stock).