Commitments and Contingencies Level 4 (Details) - Environmental Liabilities (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014 sites	Dec. 31, 2013 sites
Accrued Environmental Loss Contingencies, Current	$ 14	$ 14
Estimated Litigation Liability, Current	7	7
Environmental Institution of Parana IAP [Member]
Liability	18
Geismar, LA [Member]
Discount rate assumed to record at present value	3.00%
Undiscounted Liability Expected to be Paid	next 24 years
Accrual for Environmental Loss Contingencies, Gross	20
Accrual for Environmental Loss Contingencies, Undiscounted, Due Ratably over the Next Five Years	6
Liability	15	16
Range of Reasonably Possible Costs - Low	10
Range of Reasonably Possible Costs - High	22
Number of Sites	1	1
Superfund and Offsite Landfills - allocated share: Less than 1% [Member]
Liability	1	1
Range of Reasonably Possible Costs - Low	1
Range of Reasonably Possible Costs - High	1
Number of Sites	15	16
Superfund and Offsite Landfills - allocated share: Equal to or Greater than 1% [Member]
Liability	7	8
Range of Reasonably Possible Costs - Low	5
Range of Reasonably Possible Costs - High	14
Number of Sites	12	12
Currently-Owned [Member]
Accrual for Environmental Loss Contingencies, Undiscounted, Due Ratably over the Next Five Years	5
Liability	11	8
Range of Reasonably Possible Costs - Low	8
Range of Reasonably Possible Costs - High	18
Number of Sites	13	12
Formerly-Owned - Remediation [Member]
Liability	18	8
Range of Reasonably Possible Costs - Low	16
Range of Reasonably Possible Costs - High	28
Number of Sites	12	11
Formerly-Owned - Monitoring Only [Member]
Liability	1	1
Range of Reasonably Possible Costs - Low	0
Range of Reasonably Possible Costs - High	$ 1
Number of Sites	4	4