Discontinued Operations (Details Textual) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016		Jun. 30, 2017	Jun. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations		$ 7			$ 14
L&W Supply
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales to discontinued operations previously eliminated in consolidation	$ 134	$ 151	[1]	$ 265	$ 296	[1]
Cash inflow from discontinued operation	143			252
Income from discontinued operations	9			9
European Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations	$ 1			$ 1

[1] sales that were sold by L&W to third party customers through June 30, 2016