CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Revenue	$ 1,758,628	$ 1,962,636	$ 3,474,129	$ 3,765,206
Cost of goods and services	1,104,060	1,194,537	2,192,402	2,289,247
Gross profit	654,568	768,099	1,281,727	1,475,959
Selling and administrative expenses	402,695	438,824	837,329	872,228
Operating earnings	251,873	329,275	444,398	603,731
Interest expense, net	31,988	31,961	64,025	64,616
Other (income) expense, net	(1,256)	(6,233)	(5,443)	(6,042)
Earnings before provision for income taxes and discontinued operations	221,141	303,547	385,816	545,157
Provision for income taxes	65,507	92,966	112,992	164,535
Earnings from continuing operations	155,634	210,581	272,824	380,622
Earnings (loss) from discontinued operations, net	176,762	3,378	269,082	(6,525)
Net earnings	$ 332,396	$ 213,959	$ 541,906	$ 374,097
Earnings per share from continuing operations [Abstract]
Earnings from continuing operations (in dollars per basic share)	$ 0.98	$ 1.26	$ 1.70	$ 2.26
Earnings from continuing operations (in dollars per diluted share)	0.97	1.25	1.69	2.23
Earnings per share from discontinued operations: [Abstract]
Earnings (loss) from discontinued operations, net (in dollars per basic share)	1.11	0.02	1.68	(0.04)
Earnings (loss) from discontinued operations, net (in dollars per diluted share)	1.10	0.02	1.66	(0.04)
Net earnings per share: [Abstract]
Net earnings (in dollars per basic share)	2.10	1.29	3.38	2.23
Net earnings (in dollars per diluted share)	2.07	1.27	3.35	2.19
Dividends paid per common share (in dollars per share)	$ 0.40	$ 0.375	$ 0.80	$ 0.75