Condensed Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Condensed Consolidated Statements of Income [Abstract]
Net sales	$ 3,184,984	$ 2,847,186	$ 6,159,182	$ 5,449,301
Cost of goods sold	2,268,870	2,024,876	4,394,274	3,866,516
Gross profit	916,114	822,310	1,764,908	1,582,785
Operating expenses:
Selling, administrative & other expenses	651,635	598,331	1,285,904	1,174,548
Depreciation and amortization	22,928	23,186	45,473	45,329
Total operating expenses	674,563	621,517	1,331,377	1,219,877
Income before income taxes	241,551	200,793	433,531	362,908
Income taxes	89,739	76,326	155,204	137,832
Net income	$ 151,812	$ 124,467	$ 278,327	$ 225,076
Basic net income per common share	$ 0.97	$ 0.79	$ 1.77	$ 1.42
Diluted net income per common share	$ 0.96	$ 0.78	$ 1.76	$ 1.42
Dividends declared per common share	$ 0.45	$ 0.41	$ 0.90	$ 0.82
Weighted average common shares outstanding	157,248	158,260	157,439	158,514
Dilutive effect of stock options and non-vested restricted stock awards	995	402	988	403
Weighted average common shares outstanding - assuming dilution	158,243	158,662	158,427	158,917