CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Revenue	$ 6,794,342	$ 6,956,311	$ 7,752,728
Cost of goods and services	4,322,373	4,388,167	4,778,479
Gross profit	2,471,969	2,568,144	2,974,249
Selling, general and administrative expenses	1,757,523	1,647,382	1,758,765
Operating earnings	714,446	920,762	1,215,484
Interest expense	136,401	131,676	131,689
Interest income	(6,759)	(4,419)	(4,510)
Other income, net	(7,930)	(7,105)	(5,902)
Gain on sale of businesses	(96,598)	0	0
Earnings before provision for income taxes and discontinued operations	689,332	800,610	1,094,207
Provision for income taxes	180,440	204,729	316,067
Earnings from continuing operations	508,892	595,881	778,140
Earnings (losses) from discontinued operations, net	0	273,948	(2,905)
Net earnings	$ 508,892	$ 869,829	$ 775,235
Earnings per share from continuing operations [Abstract]
Earnings from continuing operations (in dollars per basic share)	$ 3.28	$ 3.78	$ 4.67
Earnings from continuing operations (in dollars per diluted share)	3.25	3.74	4.61
Earnings per share from discontinued operations [Abstract]
Earnings (loss) from discontinued operations, net (in dollars per basic share)	0.00	1.74	(0.02)
Earnings (loss) from discontinued operations, net (in dollars per diluted share)	0.00	1.72	(0.02)
Net earnings per share [Abstract]
Net earnings (in dollars per basic share)	3.28	5.52	4.65
Net earnings (in dollars per diluted share)	$ 3.25	$ 5.46	$ 4.59
Weighted average shares outstanding - basic (in shares)	155,231,000	157,619,000	166,692,000
Weighted average shares outstanding - diluted (in shares)	156,636,000	159,172,000	168,842,000
Dividends paid per common share (in dollars per share)	$ 1.72	$ 1.64	$ 1.55