Divestitures Divestitures- Discontinued Operations (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jun. 30, 2016		Jun. 30, 2015	Jun. 30, 2016		Jun. 30, 2015	Dec. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) income from discontinued operations (net of tax)		$ (398,340)		$ 10,122	$ (381,028)		$ 8,024
Goodwill		1,400,000			1,400,000			$ 1,500,000
Other intangibles, net of amortization		1,300,000			1,300,000			1,400,000
Chemetall Surface Treatment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		218,355		213,195	426,542		405,286
Cost of goods sold		120,448		124,660	233,771		249,669
Operating expenses, net		69,595		64,448	132,448		121,256
Interest and financing expenses	[1]	(9,911)		(12,583)	(20,048)		(26,029)
Other income, net		(832)		(906)	(1,770)		(2,335)
Income before income taxes		19,233		12,410	42,045		10,667
Income tax expense	[2]	417,573		2,288	423,073		2,643
(Loss) income from discontinued operations (net of tax)		(398,340)		$ 10,122	(381,028)		8,024
Current assets		252,941			252,941			237,447
Net property, plant and equipment		161,846			161,846			163,643
Goodwill		1,441,460			1,441,460			1,433,259
Other intangibles, net of amortization		1,315,990			1,315,990			1,349,179
All other noncurrent assets		24,775			24,775			25,374
Assets held for sale		3,197,012	[3]		3,197,012	[3]		3,208,902
Current liabilities		145,269			145,269			200,892
Deferred income taxes		346,989			346,989			351,465
All other noncurrent liabilities		108,463			108,463			112,742
Liabilities held for sale		$ 600,721			600,721			$ 665,099
Depreciation and amortization					35,194		37,307
Capital expenditures					$ 10,371		$ 7,790

[1] Interest and financing expenses includes the allocation of interest expense not directly attributable to other operations as well as interest expense related to debt to be assumed by the buyer. The allocation of interest expense to discontinued operations was based on the ratio of net assets held for sale to the sum of total net assets plus consolidated debt.

[2] Income tax expense for the three-month and six-month periods ended June 30, 2016 includes a discrete non-cash charge of $381.5 million due to a change in the Company’s assertion over book and tax basis differences related to a U.S. entity being sold, as well as a discrete non-cash charge of $35.2 million related to a change in the Company’s assertion over reinvestment of foreign undistributed earnings. The associated liability of $416.7 million has been recorded in Deferred tax liabilities on the condensed consolidated balance sheets as of June 30, 2016. Upon completion of the sale, the buyer will not assume these outside basis differences, thus the liability is ultimately the responsibility of the Company, and as such, this amount is not recorded as a Liability held for sale. The sale is expected to close in the fourth quarter of 2016, at which time, any difference between the sales price and the proportionate carrying value of the interests being sold would be recognized.

[3] Excludes approximately $3.0 million of Assets held for sale as of June 30, 2016 related to a small group of assets at an idled site.