Restatement of Consolidated Financial Statements (Schedule Of Consolidated Statements Of Operations and Comprehensive Income (Loss)) (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
Cost of sales									$ 5,259.0	[1]	$ 4,319.2	[1]	$ 3,879.4	[1]
Gross profit	122.7	151.7	170.3	163.0	143.6	123.2	142.8	136.1	607.7	[1]	545.7	[1]	505.8	[1]
Operating income									230.1	[1]	214.1	[1]	166.2	[1]
Income before income taxes									106.9	[1]	114.4	[1]	82.6	[1]
Income tax benefit (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]
Comprehensive income									(51.6)	[1]	79.8	[1]	200.4	[1]
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]
Errors Relating to Accounting for Inventory [Member] | As Previously Reported [Member]
Cost of sales									5,241.1		4,310.9		3,865.7
Gross profit									625.6		554.0		519.5
Operating income									248.0		222.4		179.9
Income before income taxes									124.8		122.7		96.3
Income tax benefit (provision)									(42.5)		(47.2)		(32.7)
Net income including noncontrolling interest									85.2		76.9		64.5
Net income attributable to Company common shareholders									83.8		69.2		56.3
Comprehensive income									(39.4)		89.4		219.9
Earnings per common share - basic									$ 1.61		$ 1.33		$ 1.08
Earnings per common share - assuming dilution									$ 1.57		$ 1.31		$ 1.07
Errors Relating to Accounting for Inventory [Member] | Effect of Restatement [Member]
Cost of sales									17.9		8.3		13.7
Gross profit									(17.9)		(8.3)		(13.7)
Operating income									(17.9)		(8.3)		(13.7)
Income before income taxes									(17.9)		(8.3)		(13.7)
Income tax benefit (provision)									(0.2)		0.5		(3.1)
Net income including noncontrolling interest									(18.1)		(7.8)		(16.8)
Net income attributable to Company common shareholders									(18.1)		(7.8)		(16.8)
Comprehensive income									$ (12.2)		$ (9.6)		$ (19.5)
Earnings per common share - basic									$ (0.34)		$ (0.15)		$ (0.32)
Earnings per common share - assuming dilution									$ (0.34)		$ (0.15)		$ (0.32)

[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).