Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating activities
Net income	$ 687,240	$ 705,672	$ 711,286
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	147,487	141,675	148,313
Excess tax benefits from share-based compensation	(12,021)	(7,024)	(17,766)
Gain on sale of property, plant, and equipment	(15,237)	(3,189)	(3,719)
Deferred income taxes	33,226	35,544	54,319
Share-based compensation	19,719	17,717	16,239
Changes in operating assets and liabilities:
Trade accounts receivable, net	(53,544)	1,974	(225,178)
Merchandise inventories, net	(64,214)	(21,821)	(100,820)
Trade accounts payable	240,717	331,419	292,257
Other short-term assets and liabilities	37,271	967	15,616
Other long-term assets and liabilities	(74,566)	(43,561)	(100,402)
Changes in operating assets and liabilities	258,838	453,701	78,859
Net cash provided by operating activities	946,078	1,159,373	790,145
Investing activities
Purchases of property, plant and equipment	(160,643)	(109,544)	(107,681)
Proceeds from sale of property, plant, and equipment	28,811	8,618	8,866
Acquisition of businesses and other investing activities	(462,167)	(162,701)	(287,900)
Net cash used in investing activities	(593,999)	(263,627)	(386,715)
Financing activities
Proceeds from debt	4,350,000	3,862,224	2,727,924
Payments on debt	(4,100,000)	(4,005,191)	(2,735,862)
Share-based awards exercised, net of taxes paid	(16,147)	(9,572)	(22,051)
Excess tax benefits from share-based compensation	12,021	7,024	17,766
Dividends paid	(386,863)	(368,284)	(347,271)
Purchase of stock	(181,417)	(292,275)	(95,946)
Net cash used in financing activities	(322,406)	(806,074)	(455,440)
Effect of exchange rate changes on cash	1,575	(15,771)	(7,153)
Net increase (decrease) in cash and cash equivalents	31,248	73,901	(59,163)
Cash and cash equivalents at beginning of year	211,631	137,730	196,893
Cash and cash equivalents at end of year	242,879	211,631	137,730
Supplemental disclosures of cash flow information
Income taxes	374,865	352,153	408,604
Interest	$ 19,043	$ 23,687	$ 25,155