Acquisitions And Joint Ventures (Schedule of Recognized Identified Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jan. 14, 2013	Jan. 02, 2013
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Line Items]
Goodwill	$ 3,335	$ 3,773	$ 3,987
Olmuksan Joint Venture [Member]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Line Items]
Cash and equivalents					$ 5
Receivables					72
Inventory					31
Other current assets					2
Property, plant, and equipment					106
Investments					11
Assets					227
Notes payable and current maturities of long-term debt					17
Accounts payable					27
Deferred tax liabilities noncurrent					4
Postretirement and postemployment benefit obligation					6
Liabilities					54
Noncontrolling interest					18
Net assets acquired less noncontrolling interest					$ 155
Orsa IP [Member]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Line Items]
Cash and equivalents				$ 16
Receivables				5
Inventory				27
Property, plant, and equipment				290
Goodwill				260
Intangible assets, other than goodwill				110
Other long-term assets				2
Assets				710
Accounts payable				68
Deferred tax liabilities noncurrent				37
Liabilities				105
Noncontrolling interest				134
Net assets acquired less noncontrolling interest				$ 471