Statements of Consolidated Income (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Statement [Abstract]
Net sales	$ 2,366,556	$ 2,167,168
Cost of goods sold	1,300,655	1,204,317
Gross profit	1,065,901	962,851
Percent to net sales	45.00%	44.40%
Selling, general and administrative expenses	884,088	778,679
Percent to net sales	37.40%	35.90%
Other general (income) expense - net	(572)	3,947
Interest expense	16,394	15,311
Interest and net investment income	(589)	(749)
Other expense (income) - net	503	(2,721)
Income before income taxes	166,077	168,384
Income taxes	50,620	52,199
Net income	115,457	116,185
Net income per common share:
Basic (in dollars per share)	$ 1.16	$ 1.13
Diluted (in dollars per share)	$ 1.14	$ 1.11
Average shares outstanding - basic (in shares)	98,833,210	101,961,059
Average shares and equivalents outstanding - diluted (in shares)	100,858,881	104,256,263
Comprehensive income	$ 107,254	$ 117,588