CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue	$ 1,993,351	$ 1,686,345	$ 3,806,723	$ 3,308,618
Cost of goods and services	1,243,905	1,055,132	2,396,103	2,088,141
Gross profit	749,446	631,213	1,410,620	1,220,477
Selling, general and administrative expenses	484,046	437,411	969,336	880,859
Operating earnings	265,400	193,802	441,284	339,618
Interest Expense	36,932	33,779	73,341	67,097
Interest Income	(2,338)	(1,622)	(4,918)	(3,226)
Gain on sale of businesses	0	(801)	(90,093)	(12,029)
Other expense (income), net	15	(2,053)	191	(4,347)
Earnings before provision for income taxes	230,791	164,499	462,763	292,123
Provision for income taxes	66,733	46,209	126,458	74,477
Net earnings	$ 164,058	$ 118,290	$ 336,305	$ 217,646
Net earnings per share: [Abstract]
Net earnings (in dollars per basic share)	$ 1.05	$ 0.76	$ 2.16	$ 1.40
Net earnings (in dollars per diluted share)	$ 1.04	$ 0.76	$ 2.14	$ 1.39
Weighted average shares outstanding: [Abstract]
Weighted average shares outstanding - basic	155,703,000	155,180,000	155,622,000	155,122,000
Weighted average shares outstanding - diluted	157,513,000	156,595,000	157,457,000	156,414,000
Dividends paid per common share (in dollars per share)	$ 0.44	$ 0.42	$ 0.88	$ 0.84