Venezuelan Operations (Details) (USD $) In Millions, unless otherwise specified					3 Months Ended		9 Months Ended			12 Months Ended			3 Months Ended		9 Months Ended							3 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended				9 Months Ended
	Sep. 26, 2014	Dec. 31, 2013	Feb. 13, 2013	Feb. 12, 2013	Sep. 26, 2014 VENEZUELA [Member]	Sep. 27, 2013 VENEZUELA [Member]	Sep. 26, 2014 VENEZUELA [Member]		Sep. 27, 2013 VENEZUELA [Member]	Dec. 31, 2013 VENEZUELA [Member]	Sep. 26, 2014 VENEZUELA [Member] Accounts Receivable [Member]	Dec. 31, 2013 VENEZUELA [Member] Accounts Receivable [Member]	Sep. 26, 2014 VENEZUELA [Member] BsF Denominated Monetary Items [Member]	Sep. 27, 2013 VENEZUELA [Member] BsF Denominated Monetary Items [Member]	Sep. 26, 2014 VENEZUELA [Member] BsF Denominated Monetary Items [Member]	Sep. 27, 2013 VENEZUELA [Member] BsF Denominated Monetary Items [Member]	Dec. 31, 2013 VENEZUELA [Member] BsF Denominated Monetary Items [Member]	Sep. 26, 2014 VENEZUELA [Member] BsF Denominated Monetary Items [Member] Cash [Member]	Dec. 31, 2013 VENEZUELA [Member] BsF Denominated Monetary Items [Member] Cash [Member]	Sep. 26, 2014 VENEZUELA [Member] BsF Denominated Monetary Items [Member] Accounts Payable [Member]	Dec. 31, 2013 VENEZUELA [Member] BsF Denominated Monetary Items [Member] Accounts Payable [Member]	Sep. 27, 2013 VENEZUELA [Member] U.S. Dollar Denominated Monetary Items [Member]	Sep. 27, 2013 VENEZUELA [Member] U.S. Dollar Denominated Monetary Items [Member]	Sep. 26, 2014 VENEZUELA [Member] U.S. Dollar Denominated Monetary Items [Member]	Dec. 31, 2013 VENEZUELA [Member] U.S. Dollar Denominated Monetary Items [Member]	Sep. 26, 2014 VENEZUELA [Member] Rate of 6.30 BsF per U.S. Dollar [Member]	Sep. 26, 2014 VENEZUELA [Member] Rate of 6.30 BsF per U.S. Dollar [Member]	Sep. 26, 2014 VENEZUELA [Member] Rate of 4.30 BsF per U.S. Dollar [Member]	Sep. 26, 2014 SICAD 1 Rate [Member] pound	Mar. 28, 2014 SICAD 1 Rate [Member]	Sep. 26, 2014 SICAD 1 Rate [Member] VENEZUELA [Member]	Sep. 26, 2014 SICAD 2 Rate [Member]
Schedule of International Operations [Line Items]
Foreign currency exchange rate, translation	6.30		6.30	4.30																									12.0	10.8		50
Loss due to currency devaluation							$ 83.1		$ 40.9	$ 40.9																					$ 83.1
Payment of copper imports, approved amount																										0.5	4.9	0.8
Pending liabilities																								44.3	37.6
Awarded amount																													15.2
Copper pounds purchased																													4,400,000
Foreign currency transaction, pre-tax charge that could be applied																																80
Maximum percent of profit margin that may be allowed due to price controls							30.00%	[1]
Assets	4,022.3	4,578.9			199.0		199.0			367.0	21.0	40.0	134.0		134.0		238.0	106.0	194.0
Liabilities	3,211.7	3,182.1			75.0		75.0			103.0										30.0	65.0
Percent of revenue					2.00%	4.00%	2.00%		4.00%					100.00%	100.00%	99.00%
Percent of operating income (loss)					1.00%	45.00%	16.00%		30.00%
Percent of cost of goods sold													56.00%	44.00%	52.00%	41.00%
Pending liabilities, less than 90 days																								4.1
Pending liabilities, grater than 90 days																								40.2
Intercompany payables and accounts payable settled																						13.0	55.9
Pending liabilities, less than 30 days																									22.4
Pending liabilities, less than 180 days																									15.1
Pending liabilities, grater than 180 days																									$ 0.1

[1] Outstanding unvested share-based payment awards that contain rights to non-forfeitable dividends are considered participating securities in undistributed earnings in the calculation above.