CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Consolidated Statements of Income
Sales	$ 13,327,563	$ 11,604,493	$ 10,149,985
Cost of goods sold, including warehouse and distribution expenses	6,307,614	5,518,801	4,755,294
Gross profit	7,019,949	6,085,692	5,394,691
Selling, general and administrative expenses	4,102,781	3,666,356	3,473,965
Operating income	2,917,168	2,419,336	1,920,726
Other income (expense):
Interest expense	(144,768)	(161,126)	(139,975)
Interest income	1,971	2,491	2,545
Other, net	7,543	5,704	7,033
Total other expense	(135,254)	(152,931)	(130,397)
Income before income taxes	2,781,914	2,266,405	1,790,329
Provision for income taxes	617,229	514,103	399,287
Net income	$ 2,164,685	$ 1,752,302	$ 1,391,042
Earnings per share-basic:
Earnings per share	$ 31.39	$ 23.74	$ 18.07
Weighted-average common shares outstanding - basic	68,967	73,817	76,985
Earnings per share-assuming dilution:
Earnings per share	$ 31.10	$ 23.53	$ 17.88
Weighted-average common shares outstanding - assuming dilution	69,611	74,462	77,788