Earnings (Loss) Per Common Share (Narrative) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		0 Months Ended	3 Months Ended		3 Months Ended			3 Months Ended
	Mar. 30, 2012	Apr. 01, 2011	Nov. 30, 2006 North America [Member] 0.875% Convertible Notes Due 2013 [Member]	Mar. 30, 2012 North America [Member] 0.875% Convertible Notes Due 2013 [Member]	Dec. 31, 2011 North America [Member] 0.875% Convertible Notes Due 2013 [Member]	Mar. 30, 2012 North America [Member] 1.00% Senior Convertible Notes Due 2012 [Member]	Dec. 31, 2011 North America [Member] 1.00% Senior Convertible Notes Due 2012 [Member]	Dec. 15, 2009 North America [Member] 1.00% Senior Convertible Notes Due 2012 [Member]	Mar. 30, 2012 North America [Member] Subordinated Convertible Notes Due 2029 [Member]	Apr. 01, 2011 North America [Member] Subordinated Convertible Notes Due 2029 [Member]
Debt Instrument [Line Items]
Interest rate			0.875%	0.875%	0.875%	1.00%	1.00%	1.00%
Weighted average conversion price per share				$ 50.36		$ 83.93			$ 36.75	$ 40.42
Strike price of warrants, per share			$ 76.00	$ 76.00
Average stock considered as issuable under the treasury	0	1.1