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, 2011		Oct. 01, 2011		Jul. 02, 2011		Apr. 02, 2011		Dec. 31, 2010		Oct. 02, 2010		Jul. 03, 2010		Apr. 03, 2010		Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Quarterly Financial Data [Abstract]
Sales	$ 5,440,473		$ 5,186,857		$ 5,539,931		$ 5,223,003		$ 5,238,162		$ 4,657,841		$ 4,613,307		$ 4,235,366		$ 21,390,264		$ 18,744,676		$ 14,684,101
Gross Profit	744,809		711,139		770,147		722,508		683,404		608,794		588,476		537,933
Net income attributable to shareholders	$ 174,088	[1]	$ 132,216	[2]	$ 156,197	[3]	$ 136,309	[4]	$ 157,889	[5]	$ 118,502	[6]	$ 116,193	[7]	$ 87,046	[8]	$ 598,810		$ 479,630		$ 123,512
Basic	$ 1.55	[1],[9]	$ 1.17	[2],[9]	$ 1.35	[3],[9]	$ 1.18	[4],[9]	$ 1.37	[5]	$ 1.01	[6]	$ 0.97	[7]	$ 0.72	[8]	$ 5.25		$ 4.06		$ 1.03
Diluted	$ 1.53	[1],[9]	$ 1.15	[2],[9]	$ 1.33	[3],[9]	$ 1.16	[4],[9]	$ 1.34	[5]	$ 1	[6]	$ 0.96	[7]	$ 0.71	[8]	$ 5.17	[10]	$ 4.01	[10]	$ 1.03	[10]

[1] Includes restructuring, integration, and other charges ($11,223 net of related taxes or $.10 per share on both a basic and diluted basis), an adjustment to the gain on bargain purchase recorded in the first quarter of 2011 ($410 net of related taxes), a loss on prepayment of debt ($549 net of related taxes), and a net reduction in the provision for income taxes ($28,928 net of related taxes or $.26 and $.25 per share on a basic and diluted basis, respectively) principally due to a reversal of valuation allowance on certain international deferred tax assets.

[2] Includes restructuring, integration, and other charges ($6,048 net of related taxes or $.05 per share on both a basic and diluted basis).

[3] Includes restructuring, integration, and other charges ($3,584 net of related taxes or $.03 per share on both a basic and diluted basis).

[4] Includes restructuring, integration, and other charges ($7,199 net of related taxes or $.06 per share on both a basic and diluted basis), a charge related to the settlement of a legal matter ($3,609 net of related taxes or $.03 per share on both a basic and diluted basis), and a gain on bargain purchase ($1,078 net of related taxes or $.01 per share on both a basic and diluted basis).

[5] Includes restructuring, integration, and other charges ($5,459 net of related taxes or $.05 per share on both a basic and diluted basis), as well as a net reduction of the provision for income taxes ($9,404 net of related taxes or $.08 per share on both a basic and diluted basis) and a reduction of interest expense ($2,312 net of related taxes or $.02 per share on both a basic and diluted basis) primarily related to the settlement of certain income tax matters covering multiple years.

[6] Includes restructuring, integration, and other charges ($9,506 net of related taxes or $.08 per share on both a basic and diluted basis).

[7] Includes restructuring, integration, and other charges ($4,095 net of related taxes or $.03 per share on both a basic and diluted basis) and a loss on prepayment of debt ($964 net of related taxes or $.01 per share on both a basic and diluted basis).

[8] Includes restructuring, integration, and other charges ($5,545 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 number of shares outstanding during each quarterly period, while net income per share for the full year is calculated using the weighted average number of 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 1,051 shares, 3,257 shares, and 3,851 shares for the years ended December 31, 2011, 2010, and 2009, respectively, were excluded from the computation of net income per share on a diluted basis as their effect is anti-dilutive.