CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Revenue	$ 1,622,273	$ 1,715,501
Cost of goods and services	1,033,009	1,088,342
Gross profit	589,264	627,159
Selling and administrative expenses	443,448	434,634
Operating earnings	145,816	192,525
Interest expense, net	31,714	32,037
Other income, net	(13,522)	(4,187)
Earnings before provision for income taxes and discontinued operations	127,624	164,675
Provision for income taxes	28,268	47,485
Earnings from continuing operations	99,356	117,190
Earnings from discontinued operations, net	0	92,320
Net earnings	$ 99,356	$ 209,510
Earnings per share from continuing operations [Abstract]
Earnings from continuing operations (in dollars per basic share)	$ 0.64	$ 0.72
Earnings from continuing operations (in dollars per diluted share)	0.64	0.72
Earnings per share from discontinued operations: [Abstract]
Earnings from discontinued operations, net (in dollars per basic share)	0.00	0.57
Earnings from discontinued operations, net (in dollars per diluted share)	0.00	0.57
Net earnings per share: [Abstract]
Net earnings (in dollars per basic share)	0.64	1.30
Net earnings (in dollars per diluted share)	$ 0.64	$ 1.28
Weighted average shares outstanding: [Abstract]
Weighted average shares outstanding - basic	155,064,000	161,650,000
Weighted average shares outstanding - diluted	156,161,000	163,323,000
Dividends paid per common share (in dollars per share)	$ 0.42	$ 0.40