Quarterly Financial Data Quarterly Financial Information Table (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2013		Sep. 28, 2013		Jun. 29, 2013		Mar. 30, 2013		Dec. 31, 2012		Sep. 29, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Quarterly Financial Data [Abstract]
Sales	$ 6,153,360		$ 5,048,211		$ 5,306,085		$ 4,849,629		$ 5,402,705		$ 4,962,331		$ 5,150,563		$ 4,889,529		$ 21,357,285		$ 20,405,128		$ 21,390,264
Gross Profit	787,625		671,660		689,572		642,072		706,844		662,719		687,144		680,579
Net income attributable to shareholders	$ 134,831	[1]	$ 96,779	[2]	$ 89,935	[3]	$ 77,875	[4]	$ 174,704	[5]	$ 103,617	[6]	$ 114,383	[7]	$ 113,628	[8]	$ 399,420		$ 506,332		$ 598,810
Basic	$ 1.34	[1],[9]	$ 0.96	[2],[9]	$ 0.87	[3],[9]	$ 0.74	[4],[9]	$ 1.64	[5]	$ 0.96	[6]	$ 1.04	[7]	$ 1.01	[8]	$ 3.89		$ 4.64		$ 5.25
Diluted	$ 1.32	[1],[9]	$ 0.95	[2],[9]	$ 0.86	[3],[9]	$ 0.72	[4],[9]	$ 1.62	[5]	$ 0.94	[6]	$ 1.02	[7]	$ 1.00	[8]	$ 3.85	[10]	$ 4.56	[10]	$ 5.17	[10]

[1] restructuring, integration, and other charges ($13,341 net of related taxes or $.13 per share on both a basic and diluted basis)

[2] restructuring, integration, and other charges ($16,077 net of related taxes or $.16 per share on both a basic and diluted basis).

[3] restructuring, integration, and other charges ($20,688 net of related taxes or $.20 per share on both a basic and diluted basis). Also included is an increase in the provision for income taxes ($5,362 net of related taxes or $.05 per share on both a basic and diluted basis) and interest expense ($939 net of related taxes or $.01 per share on both a basic and diluted basis) related to the settlement of certain international tax matters.

[4] Includes amortization expense related to identifiable intangible assets ($7,116 net of related taxes or $.07 per share on both a basic and diluted basis), restructuring, integration, and other charges ($15,495 net of related taxes or $.15 and $.14 per share on a basic and diluted basis, respectively), and a loss on prepayment of debt ($2,627 net of related taxes or $.02 per share on both a basic and diluted basis).

[5] restructuring, integration, and other charges ($6,320 net of related taxes or $.06 per share on both a basic and diluted basis), and a gain on the settlement of a legal matter ($48,623 net of related taxes or $.46 and $.45 per share on a basic and diluted basis, respectively).

[6] Includes amortization expense related to identifiable intangible assets ($7,145 net of related taxes or $.07 per share on both a basic and diluted basis) and restructuring, integration, and other charges ($8,576 net of related taxes or $.08 per share on both a basic and diluted basis).

[7] Includes amortization expense related to identifiable intangible assets ($7,360 net of related taxes or $.07 per share on both a basic and diluted basis) and restructuring, integration, and other charges ($9,702 net of related taxes or $.09 per share on both a basic and diluted basis).

[8] restructuring, integration, and other charges ($6,141 net of related taxes or $.05 per share on both a basic and diluted basis).

[9] Quarterly net income per share is calculated using the weighted-average shares outstanding during each quarterly period, while net income per share for the full year is calculated using the weighted-average shares outstanding during the year. Therefore, the sum of the net income per share for each of the four quarters may not equal the net income per share for the full year.

[10] Stock-based compensation awards for the issuance of 874 shares, 1,424 shares, and 1,051 shares for the years ended December 31, 2013, 2012, and 2011, respectively, were excluded from the computation of net income per share on a diluted basis as their effect was anti-dilutive.