Consolidated Balance Sheet (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 991,159	$ 891,403
Trade accounts receivable (less allowances of $62,515 and $60,236)	3,880,991	4,465,329
Inventory	3,180,233	2,942,164
Other current assets	348,293	319,506
Total current assets	8,400,676	8,618,402
Property and equipment, net	337,798	323,261
Intangible assets, net	71,107	73,330
Other assets	118,465	131,523
Total assets	8,928,046	9,146,516
Current liabilities:
Accounts payable	4,625,686	4,893,437
Accrued expenses	394,484	524,010
Short-term debt and current maturities of long-term debt	88,286	92,428
Total current liabilities	5,108,456	5,509,875
Long-term debt, less current maturities	300,000	300,000
Other liabilities	83,345	63,864
Total liabilities	5,491,801	5,873,739
Commitments and contingencies (Note 12)
Stockholders' equity:
Preferred Stock, $0.01 par value, 25,000 shares authorized; no shares issued and outstanding
Additional paid-in capital	1,335,482	1,316,596
Treasury stock, 35,350 and 35,643 shares in 2012 and 2011, respectively	(598,934)	(604,331)
Retained earnings	2,534,968	2,444,995
Accumulated other comprehensive income	162,855	113,666
Total stockholders' equity	3,436,245	3,272,777
Total liabilities and stockholders' equity	8,928,046	9,146,516
Common Class A [Member]
Stockholders' equity:
Common Stock	1,874	1,851
Common Class B [Member]
Stockholders' equity:
Common Stock