Long-Term Debt (Convertible Notes) (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified							0 Months Ended			0 Months Ended	2 Months Ended	3 Months Ended
	Jul. 22, 2011 0.875% Convertible Notes Due 2013 [Member]	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]	Dec. 15, 2009 North America [Member] Subordinated Convertible Notes Due 2029 [Member]	Mar. 29, 2013 North America [Member] Subordinated Convertible Notes Due 2029 [Member]	Dec. 31, 2012 North America [Member] Subordinated Convertible Notes Due 2029 [Member]	Nov. 30, 2006 North America [Member] 0.875% Convertible Notes Due 2013 [Member]	Dec. 31, 2006 North America [Member] 0.875% Convertible Notes Due 2013 [Member]	Mar. 29, 2013 North America [Member] 0.875% Convertible Notes Due 2013 [Member]	Dec. 31, 2012 North America [Member] 0.875% Convertible Notes Due 2013 [Member]
Debt Instrument [Line Items]
Capitalized deferred finance costs		$ 11.8
Debt principal amount	355.0					600.0	429.5			355.0
Nonconvertible debt borrowing rate on debt instrument issuance date							12.50%			7.35%
Liability component of convertible notes		600.0	[1]	600.0	[1]		162.9	429.5	429.5	230.9		355.0	355.0
Debt discount							266.6	262.6	263.0	124.1		15.0	20.4
Debt issuance fees and expenses							14.5
Interest rate		5.75%	[1]	5.75%	[1]	5.75%				0.875%		0.875%	0.875%
Debt instrument original issuance date										Nov. 30, 2006
Conversion price per share										$ 50.36
Common stock covered under note hedges										7,048,880
Strike price of warrants, per share										$ 76.00		$ 76.00
Premium over the closing price of the companys shares of common stock included in strick price										92.40%
Payments of outstanding debt including accrued interest, under Company's amended credit facility											87.8
Payments for cost of note hedges											124.5
Payments of issuance costs and expenses of related to notes											9.4
Proceeds from issuance of warrants											80.4
Net increase in cash from receipt of the funds from convertible notes and related payments used for general corporate purposes including acquisitions											$ 213.7

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