Discontinued Operations (Details) $ in Millions		12 Months Ended
	Mar. 10, 2015 USD ($) Plant	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Loss from discontinued operations		$ 4	$ 23	$ 18
Disposed Venezuelan subsidiaries
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Expropriated plants | Plant	2
Disposed Venezuelan subsidiaries | Minimum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Litigation Settlement, Amount	$ 455
Disposed Venezuelan subsidiaries | Discontinued Operations, Disposed of by Means Other than Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Loss from discontinued operations		$ 4	$ 23	$ 18