Long-Term Debt (Schedule Of Long-Term-Debt) (Details) (USD $) In Millions, unless otherwise specified			3 Months Ended		12 Months Ended			3 Months Ended	12 Months Ended			3 Months Ended	12 Months Ended			3 Months Ended		12 Months Ended													3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended
	Mar. 29, 2013	Dec. 31, 2012	Mar. 29, 2013 North America [Member] 5.75% Senior Notes due 2022 [Member]		Dec. 31, 2012 North America [Member] 5.75% Senior Notes due 2022 [Member]		Sep. 25, 2012 North America [Member] 5.75% Senior Notes due 2022 [Member]	Mar. 29, 2013 North America [Member] Subordinated Convertible Notes Due 2029 [Member]	Dec. 31, 2011 North America [Member] Subordinated Convertible Notes Due 2029 [Member]	Dec. 31, 2012 North America [Member] Subordinated Convertible Notes Due 2029 [Member]	Dec. 15, 2009 North America [Member] Subordinated Convertible Notes Due 2029 [Member]	Mar. 29, 2013 North America [Member] 0.875% Convertible Notes Due 2013 [Member]	Dec. 31, 2011 North America [Member] 0.875% Convertible Notes Due 2013 [Member]	Dec. 31, 2012 North America [Member] 0.875% Convertible Notes Due 2013 [Member]	Nov. 30, 2006 North America [Member] 0.875% Convertible Notes Due 2013 [Member]	Mar. 29, 2013 North America [Member] Senior Floating Rate Notes Due 2015 [Member]		Dec. 31, 2011 North America [Member] Senior Floating Rate Notes Due 2015 [Member]	Dec. 31, 2012 North America [Member] Senior Floating Rate Notes Due 2015 [Member]		Mar. 29, 2013 North America [Member] Other Debt [Member]	Dec. 31, 2012 North America [Member] Other Debt [Member]	Mar. 29, 2013 North America [Member] Asset Based Revolving Credit Facility [Member]	Dec. 31, 2012 North America [Member] Asset Based Revolving Credit Facility [Member]	Mar. 29, 2013 Europe and Mediterranean [Member] Other Debt [Member]	Dec. 31, 2012 Europe and Mediterranean [Member] Other Debt [Member]	Mar. 29, 2013 Europe and Mediterranean [Member] Spanish Term Loan [Member]		Dec. 31, 2012 Europe and Mediterranean [Member] Spanish Term Loan [Member]		Mar. 29, 2013 Europe and Mediterranean [Member] Uncommitted Accounts Receivable Facilities [Member]	Dec. 31, 2011 Europe and Mediterranean [Member] Uncommitted Accounts Receivable Facilities [Member]	Dec. 31, 2012 Europe and Mediterranean [Member] Uncommitted Accounts Receivable Facilities [Member]	Mar. 29, 2013 Europe and Mediterranean [Member] Credit Facilities [Member]	Dec. 31, 2011 Europe and Mediterranean [Member] Credit Facilities [Member]	Dec. 31, 2012 Europe and Mediterranean [Member] Credit Facilities [Member]	Mar. 29, 2013 Rest of World [Member] Credit Facilities [Member]	Dec. 31, 2011 Rest of World [Member] Credit Facilities [Member]	Dec. 31, 2012 Rest of World [Member] Credit Facilities [Member]
Debt Instrument [Line Items]
Face value			$ 600.0	[1]	$ 600.0	[1]		$ 429.5		$ 429.5	$ 162.9	$ 355.0		$ 355.0	$ 230.9	$ 125.0	[2]		$ 125.0	[2]
Debt discount								(262.6)		(263.0)	(266.6)	(15.0)		(20.4)	(124.1)
Total debt	1,548.0	1,450.1						166.9		166.5		340.0		334.6							9.0	9.0	0	0	20.3	11.7	8.4	[3]	14.6	[3]	14.6		4.0	24.3		14.7	239.5		170.0
Less current maturities	611.3	511.2
Long-term debt	$ 936.7	$ 938.9
Interest rate			5.75%	[1]	5.75%	[1]	5.75%					0.875%		0.875%	0.875%	2.70%	[2]		2.70%	[2]				1.50%
Maturity date			October 2022	[1]	October 2022	[1]		November 2029	November 2029			November 2013	November 2013			July 2015		July 2015													Various	Various		Various	Various		Various	Various

[1] Jointly and severally guaranteed by the Company's wholly owned U.S. subsidiaries.

[2] Jointly and severally guaranteed by the Company's wholly-owned U.S. subsidiaries.

[3] The terms of the Spanish Term Loans are as follows:(in millions)OriginalAmountIssuance DateMaturity DateInterest RateLoan and Interest PayableInterestRate Swap (2)Term Loan 1€20.0Feb 2008Feb 2013Euribor +0.5%Semi-annual: Aug & Feb4.20%Term Loan 2€10.0Apr 2008Apr 2013Euribor +0.75%Semi-annual: Apr & Oct4.58%Term Loan 3€21.0Jun 2008Jun 2013Euribor +0.75%Quarterly: Mar, Jun, Sept & Dec4.48%Term Loan 4€15.0Sep 2009Aug 2014Euribor +2.0%Quarterly: Mar, Jun, Sept & DecPrincipal payments: Feb & Aug1.54%