Condensed Statements of Consolidated Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
OPERATING ACTIVITIES
Net income	$ 147,128	$ 131,404
Adjustments to reconcile net income to net operating cash:
Depreciation	42,895	42,500
Amortization of intangible assets	5,782	6,905
Stock-based compensation expense	15,765	18,079
Amortization of credit facility and debt issuance costs	6,656	1,083
Provisions for qualified exit costs	1,126	761
Provisions for environmental-related matters	18,029	1,050
Defined benefit pension plans net cost	6,992	1,787
Net increase in postretirement liability	961	(111)
Other	(147)	(3,785)
Change in working capital accounts - net	(298,341)	(254,221)
Costs incurred for environmental-related matters	(5,036)	(2,875)
Costs incurred for qualified exit costs	(2,868)	(1,966)
Other	(18,749)	4,321
Net operating cash	(79,807)	(55,068)
INVESTING ACTIVITIES
Capital expenditures	(51,999)	(42,903)
Proceeds from sale of assets	988	6,677
Increase in other investments	(10,526)	(56)
Net investing cash	(61,537)	(36,282)
FINANCING ACTIVITIES
Net increase in short-term borrowings	85,770	731,733
Payments of long-term debt	0	(96)
Payments for credit facility and debt issuance costs	(41,850)	0
Payments of cash dividends	(77,734)	(62,609)
Proceeds from stock options exercised	19,717	37,494
Income tax effect of stock-based compensation exercises and vesting	24,762	52,632
Treasury stock purchased	0	(614,911)
Other	(16,597)	(33,108)
Net financing cash	(5,932)	111,135
Effect of exchange rate changes on cash	12,080	3,496
Net (decrease) increase in cash and cash equivalents	(135,196)	23,281
Cash and cash equivalents at beginning of year	205,744	40,732
Cash and cash equivalents at end of period	70,548	64,013
Income taxes paid	23,155	16,044
Interest paid	$ 30,552	$ 9,381