Environmental (Schedule of Environmental Remediation Reserves) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Environmental Remediation Obligations [Abstract]
Demerger obligations (Note 24)	$ 25ce_DemergerObligations	$ 27ce_DemergerObligations
Divestiture obligations (Note 24)	21ce_DivestitureObligations	21ce_DivestitureObligations
Active sites	23ce_ActiveSites	32ce_ActiveSites
US Superfund sites	12ce_UsSuperfundSites	13ce_UsSuperfundSites
Other environmental remediation reserves	3	4
Total	$ 84	$ 97

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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