CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Revenue	$ 1,748,256	$ 1,825,345	$ 4,903,370	$ 5,360,808
Cost of goods and services	1,089,527	1,151,857	3,080,800	3,391,185
Gross profit	658,729	673,488	1,822,570	1,969,623
Selling, General and Administrative Expense	381,831	390,775	1,135,512	1,195,875
Loss on assets held for sale	0	0	0	46,946
Operating earnings	276,898	282,713	687,058	726,802
Interest Expense	27,724	31,410	83,703	94,972
Interest Income	(960)	(1,263)	(2,871)	(3,098)
Gain on sale of businesses	557	0	(5,213)	0
Other income, net	(1,420)	(5,364)	(9,887)	(11,059)
Provision for income taxes	50,697	51,924	119,981	136,191
Net earnings	$ 200,300	$ 206,006	$ 501,345	$ 509,796
Net earnings per share:
Net earnings (in dollars per basic share)	$ 1.39	$ 1.42	$ 3.48	$ 3.51
Net earnings (in dollars per diluted share)	$ 1.38	$ 1.40	$ 3.45	$ 3.47
Weighted average shares outstanding:
Weighted average shares outstanding - basic	144,032,000	145,372,000	144,082,000	145,276,000
Weighted average shares outstanding - diluted	145,289,000	147,051,000	145,313,000	147,053,000
Earnings before provision for income taxes	$ 250,997	$ 257,930	$ 621,326	$ 645,987