CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Sales		$ 23,825,261	$ 23,282,020	$ 22,768,674
Costs and expenses:
Cost of sales		20,681,062	20,246,770	19,772,779
Selling, general, and administrative expenses		2,052,863	1,986,249	1,959,749
Depreciation and amortization		159,195	155,754	156,048
Restructuring, integration, and other charges		73,602	68,765	39,841
Trade name impairment charge		0	0	78,000
Total Costs and Expenses		22,966,722	22,457,538	22,006,417
Operating income		858,539	824,482	762,257
Equity in earnings of affiliated companies		7,573	7,037	7,318
Gain on sale of investment		0	2,008	29,743
Loss on prepayment of debt		0	2,943	0
Interest and other financing expense, net		150,715	135,401	115,985
Other expense, net		0	3,000	0
Income before income taxes		715,397	692,183	683,333
Provision for income taxes		190,674	191,697	184,943
Consolidated net income		524,723	500,486	498,390
Noncontrolling interests		1,973	2,760	345
Net income attributable to shareholders		$ 522,750	$ 497,726	$ 498,045
Net income per share:
Basic		$ 5.75	$ 5.26	$ 5.05
Diluted	[1]	$ 5.68	$ 5.20	$ 4.98
Weighted-average shares outstanding:
Basic		90,960	94,608	98,675
Diluted		92,033	95,686	99,947

[1] Stock-based compensation awards for the issuance of 766 shares, 658 shares, and 294 shares for the years ended December 31, 2016, 2015, and 2014, respectively, were excluded from the computation of net income per share on a diluted basis as their effect was anti-dilutive.