CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Income Statement [Abstract]
Revenue	$ 1,715,501us-gaap_SalesRevenueNet	$ 1,802,570us-gaap_SalesRevenueNet
Cost of goods and services	1,088,342us-gaap_CostOfGoodsAndServicesSold	1,094,710us-gaap_CostOfGoodsAndServicesSold
Gross profit	627,159us-gaap_GrossProfit	707,860us-gaap_GrossProfit
Selling and administrative expenses	434,634	433,404
Operating earnings	192,525us-gaap_OperatingIncomeLoss	274,456us-gaap_OperatingIncomeLoss
Interest expense, net	32,037us-gaap_InterestRevenueExpenseNet	32,655us-gaap_InterestRevenueExpenseNet
Other (income) expense, net	(4,187)us-gaap_OtherNonoperatingIncomeExpense	191us-gaap_OtherNonoperatingIncomeExpense
Earnings before provision for income taxes and discontinued operations	164,675	241,610
Provision for income taxes	47,485us-gaap_IncomeTaxExpenseBenefit	71,569us-gaap_IncomeTaxExpenseBenefit
Earnings from continuing operations	117,190	170,041
Earnings (loss) from discontinued operations, net	92,320	(9,903)
Net earnings	$ 209,510us-gaap_NetIncomeLoss	$ 160,138us-gaap_NetIncomeLoss
Earnings per share from continuing operations [Abstract]
Earnings from continuing operations (in dollars per basic share)	$ 0.72	$ 1.00
Earnings from continuing operations (in dollars per diluted share)	$ 0.72	$ 0.99
Earnings per share from discontinued operations: [Abstract]
Earnings (loss) from discontinued operations, net (in dollars per basic share)	$ 0.57	$ (0.06)
Earnings (loss) from discontinued operations, net (in dollars per diluted share)	$ 0.57	$ (0.06)
Net earnings per share: [Abstract]
Net earnings (in dollars per basic share)	$ 1.30us-gaap_EarningsPerShareBasic	$ 0.94us-gaap_EarningsPerShareBasic
Net earnings (in dollars per diluted share)	$ 1.28us-gaap_EarningsPerShareDiluted	$ 0.93us-gaap_EarningsPerShareDiluted
Dividends paid per common share (in dollars per share)	$ 0.40	$ 0.375

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