CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 385,504	$ 513,075
Receivables, net	1,347,514	1,137,223
Inventories, net	1,191,095	835,804
Prepaid and other current assets	137,596	133,085
Total current assets	3,061,709	2,619,187
Property, plant and equipment, net	957,310	897,326
Goodwill	4,558,822	4,072,542
Intangible assets, net	1,359,522	1,083,772
Other assets and deferred charges	466,264	479,247
Total assets	10,403,627	9,152,074
Current liabilities:
Notes payable	105,702	0
Accounts payable	1,073,568	853,942
Accrued compensation and employee benefits	302,978	239,750
Deferred revenue	227,549	184,845
Accrued insurance	101,448	98,954
Other accrued expenses	347,097	343,637
Federal and other income taxes	91,999	17,670
Total current liabilities	2,250,341	1,738,798
Long-term debt	3,018,714	3,108,829
Deferred income taxes	364,117	298,423
Noncurrent income tax payable	48,385	49,937
Other liabilities	532,542	570,314
Stockholders' equity:
Preferred stock - $100 par value; 100,000 shares authorized; none issued	0	0
Common stock - $1 par value; 500,000,000 shares authorized; 259,457,233 and 258,981,638 shares issued at December 31, 2021 and 2020	259,457	258,982
Additional paid-in capital	857,636	868,882
Retained earnings	9,445,245	8,608,284
Accumulated other comprehensive loss	(154,052)	(153,254)
Treasury stock, at cost: 115,411,548 and 115,228,597 shares at December 31, 2021 and 2020	(6,218,758)	(6,197,121)
Total stockholders' equity	4,189,528	3,385,773
Total liabilities and stockholders' equity	$ 10,403,627	$ 9,152,074