Environmental (Schedule of Environmental Remediation Reserves) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Environmental Remediation Obligations [Abstract]
Demerger obligations (Note 16)	$ 24ce_DemergerObligations	$ 25ce_DemergerObligations
Divestiture obligations (Note 16)	19ce_DivestitureObligations	21ce_DivestitureObligations
Active sites	22ce_ActiveSites	23ce_ActiveSites
US Superfund sites	11ce_UsSuperfundSites	12ce_UsSuperfundSites
Other environmental remediation reserves	2	3
Total	$ 78	$ 84

Total costs accrued as of the balance sheet date for environmental loss contingencies.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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