CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Revenue	$ 1,825,345	$ 1,747,403	$ 5,360,808	$ 5,183,168
Cost of goods and services	1,151,857	1,100,883	3,391,185	3,268,583
Gross profit	673,488	646,520	1,969,623	1,914,585
Selling, General and Administrative Expense	390,775	426,445	1,195,875	1,290,246
Loss on assets held for sale	0	0	(46,946)	0
Operating earnings	282,713	220,075	726,802	624,339
Interest Expense	31,410	31,192	94,972	98,957
Interest Income	(1,263)	(2,060)	(3,098)	(6,680)
Other income, net	(5,364)	(2,073)	(11,059)	(6,641)
Earnings before provision for income taxes	257,930	193,016	645,987	538,703
Provision for income taxes	51,924	35,711	136,191	105,533
Earnings from continuing operations	206,006	157,305	509,796	433,170
Loss from discontinued operations	0	0	0	(4,472)
Net earnings	$ 206,006	$ 157,305	$ 509,796	$ 428,698
Earnings per share from continuing operations
Earnings from continuing operations (in dollars per basic share)	$ 1.42	$ 1.07	$ 3.51	$ 2.87
Earnings from continuing operations (in dollars per diluted share)	1.40	1.05	3.47	2.82
Earnings (loss) per share from discontinued operations:
Earnings (loss) per share from discontinued operations (in dollars per basic share)	0	0	0	(0.03)
Earnings (loss) per share from discontinued operations (in dollars per diluted share)	0	0	0	(0.03)
Net earnings per share:
Net earnings (in dollars per basic share)	1.42	1.07	3.51	2.84
Net earnings (in dollars per diluted share)	$ 1.40	$ 1.05	$ 3.47	$ 2.79
Weighted average shares outstanding:
Weighted average shares outstanding - basic	145,372,000	147,344,000	145,276,000	151,177,000
Weighted average shares outstanding - diluted	147,051,000	149,457,000	147,053,000	153,429,000