Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Statement of Cash Flows [Abstract]
Cash and cash equivalents at beginning of year	$ 2,489,768	$ 477,239
Cash flows from operating activities:
Net income	47,149us-gaap_ProfitLoss	64,235us-gaap_ProfitLoss
Adjustments to reconcile net income to cash flows from operating activities:
Depreciation and amortization	63,986	27,809
Write-offs associated with restructuring and other	0	3,000
Stock-based compensation	4,912us-gaap_ShareBasedCompensation	3,402us-gaap_ShareBasedCompensation
Excess tax benefits realized from stock-based compensation arrangements	(23)	(586)
Equity in net income of unconsolidated investments (net of tax)	(10,392)	(8,901)
Dividends received from unconsolidated investments and nonmarketable securities	3,048	3,085
Pension and postretirement (benefit) expense	(1,458)	16,669
Pension and postretirement contributions	(5,986)	(2,540)
Unrealized gain on investments in marketable securities	(462)us-gaap_UnrealizedGainLossOnInvestments	(635)us-gaap_UnrealizedGainLossOnInvestments
Deferred income taxes	(32,845)	4,139
Working capital changes	28,881	39,826
Other, net	(51,019)us-gaap_OtherNoncashIncomeExpense	(330)us-gaap_OtherNoncashIncomeExpense
Net cash provided by operating activities	45,791	149,173
Cash flows from investing activities:
Acquisition of Rockwood, net of cash acquired	(2,051,645)	0
Acquisition of remaining interest in Shanghai Chemetall, net of cash acquired	(45,550)	0
Capital expenditures	(56,741)	(23,667)
Decrease in restricted cash	57,550	0
Sales of marketable securities, net	1,557	2,151
Proceeds from repayment of advance to joint venture	2,156	0
Net cash used in investing activities	(2,092,673)	(21,516)
Cash flows from financing activities:
Repayments of long-term debt	(1,326,263)us-gaap_RepaymentsOfLongTermDebt	(101)us-gaap_RepaymentsOfLongTermDebt
Proceeds from borrowings of long-term debt	1,000,000	0
Other borrowings (repayments), net	167,571	(8,434)
Dividends paid to shareholders	(21,730)us-gaap_PaymentsOfDividendsCommonStock	(19,582)us-gaap_PaymentsOfDividendsCommonStock
Repurchases of common stock	0	(50,000)
Proceeds from exercise of stock options	90	1,255
Excess tax benefits realized from stock-based compensation arrangements	23	586
Withholding taxes paid on stock-based compensation award distributions	(1,174)	(2,968)
Debt financing costs	(1,164)us-gaap_PaymentsOfFinancingCosts	(1,370)us-gaap_PaymentsOfFinancingCosts
Net cash used in financing activities	(182,647)	(80,614)
Net effect of foreign exchange on cash and cash equivalents	1,182	(239)
(Decrease) increase in cash and cash equivalents	(2,228,347)	46,804
Cash and cash equivalents at end of period	$ 261,421	$ 524,043

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-SubTopic 10

-Section 50

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-Subparagraph (a),(c)

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-SubTopic 10

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

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-Glossary Financing Activities

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of investments, not including unrealized gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, held at each balance sheet date and included in earnings for the period.

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