Disposal Groups and Discontinued Operations - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Jan. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
No consideration received from divestiture of disposal group					$ 0
Gain on derecognition of noncontrolling interest		$ 5
Proceeds from sale of business			$ 9
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Credit to other comprehensive loss related to disposal group		10
Accumulated Defined Benefit Plans Adjustment Attributable to Noncontrolling Interest [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Credit to other comprehensive loss related to disposal group		1
Operations In Venezuela [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal group held for sale				$ 80
Gain on derecognition of noncontrolling interest		$ 5
Structural Products [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business			9
Charge to other expense within discontinued operations			$ 1