Environmental (Schedule of Environmental Remediation Reserves) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Environmental Remediation Obligations [Abstract]
Demerger obligations (Note 17)	$ 27	$ 27
Divestiture obligations (Note 17)	22	21
Active sites	27	32
US Superfund sites	12	13
Other environmental remediation reserves	3	4
Total	$ 91	$ 97