Earnings (Loss) Per Common Share (Narrative) (Details) (North America [Member], USD $)	0 Months Ended	3 Months Ended
	Nov. 30, 2006	Mar. 29, 2013	Dec. 31, 2012
0.875% Convertible Notes Due 2013 [Member]
Debt Instrument [Line Items]
Interest rate	0.875%	0.875%	0.875%
Weighted average conversion price per share		$ 50.36
Strike price of warrants, per share	$ 76.00	$ 76.00
Subordinated Convertible Notes Due 2029 [Member]
Debt Instrument [Line Items]
Weighted average conversion price per share		$ 36.75