Condensed Statements of Consolidated Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
OPERATING ACTIVITIES
Net income	$ 115,457	$ 116,185
Adjustments to reconcile net income to net operating cash:
Depreciation	41,408	38,892
Amortization of intangible assets	7,552	7,664
Stock-based compensation expense	15,858	11,906
Provisions for qualified exit costs	2,897	155
Provisions for environmental-related matters	(434)	323
Defined benefit pension plans net cost	1,813	4,987
Net increase in postretirement liability	1,485	900
Other	2,747	5,165
Change in working capital accounts - net	(257,041)	(269,219)
Costs incurred for environmental-related matters	(3,384)	(4,792)
Costs incurred for qualified exit costs	(529)	(4,186)
Other	(10,948)	889
Net operating cash	(83,119)	(91,131)
INVESTING ACTIVITIES
Capital expenditures	(29,364)	(31,232)
(Payments for) proceeds from sale of assets	(332)	991
Increase in other investments	(15,373)	(17,768)
Net investing cash	(45,069)	(48,009)
FINANCING ACTIVITIES
Net (decrease) increase in short-term borrowings	(8,932)	668
Payments of long-term debt	(680)	(270)
Payments of cash dividends	(55,090)	(51,745)
Proceeds from stock options exercised	48,657	20,734
Income tax effect of stock-based compensation exercises and vesting	39,896	23,635
Treasury stock purchased	(256,391)	(81,438)
Other	(21,766)	(18,989)
Net financing cash	(254,306)	(107,405)
Effect of exchange rate changes on cash	4,070	(2,115)
Net decrease in cash and cash equivalents	(378,424)	(248,660)
Cash and cash equivalents at beginning of year	744,889	862,590
Cash and cash equivalents at end of period	366,465	613,930
Income taxes paid	13,028	13,007
Interest paid	$ 10,359	$ 8,590