Separation and Merger Transaction (Details) (USD $)	3 Months Ended	12 Months Ended			24 Months Ended			1 Months Ended	3 Months Ended	12 Months Ended				12 Months Ended			3 Months Ended
	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 28, 2015	Jan. 31, 2014	Jan. 28, 2013	Jul. 19, 2012 Commodity Chemicals Segment	Mar. 31, 2013 Commodity Chemicals Segment	Dec. 31, 2013 Commodity Chemicals Segment	Dec. 31, 2012 Commodity Chemicals Segment	Dec. 31, 2011 Commodity Chemicals Segment	Sep. 28, 2012 Commodity Chemicals Segment	Dec. 31, 2013 Commodity Chemicals Segment	Dec. 31, 2012 Commodity Chemicals Segment	Dec. 31, 2011 Commodity Chemicals Segment	Mar. 31, 2013 Pensions Defined Contribution Pension Commodity Chemicals Segment
Separation And Merger Transaction [Line Items]
Common stock available for distribution in exchange							35,249,104
Final exchange ratio							3.2562
Treasury Stock, Shares, Acquired	10,825,227	10,825,227
Percent Reduction in number of Common Shares Outstanding						7.00%
Increase in treasury stock as a result of tender offer, noncash financing activity		$ 1,561,000,000
Disposal Group, Including Discontinued Operation, Revenue										108,000,000	1,688,000,000	1,732,000,000
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax										0	345,000,000	376,000,000
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax														2,192,000,000	0	0
Discontinued Operation, Tax Effect of Discontinued Operation														(5,000,000)	117,000,000	126,000,000
Income from discontinued operations, net of tax		2,197,000,000	228,000,000	250,000,000										2,197,000,000	228,000,000	250,000,000
Less: net income attributable to noncontrolling interests		122,000,000	123,000,000	117,000,000										0	(13,000,000)	(13,000,000)
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax										2,197,000,000	215,000,000	237,000,000
Proceeds from separation of business		1,730,000,000						900,000,000	67,000,000
Cash Divested from Deconsolidation									27,000,000
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	2,200,000,000
Value of shares to be received in new company after separation of business													1,800,000,000
Transaction expenses related to separation and merger transaction									14,000,000	21,000,000
Discontinued operations, Net costs incurred in separation transaction									2,000,000
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments																	(33,000,000)
Contract term					24
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents			29,000,000
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net			245,000,000
Disposal Group, Including Discontinued Operation, Inventory			76,000,000
Disposal Group, Including Discontinued Operation, Other Current Assets			23,000,000
Disposal Group, Including Discontinued Operation, Property, Plant, and Equipment, Net			380,000,000
Disposal Group, Including Discontinued Operation, Goodwill			6,000,000
Disposal Group, Including Discontinued Operation, Other Noncurrent Assets			29,000,000
Assets of Disposal Group, Including Discontinued Operation			788,000,000
Disposal Group, Including Discontinued Operation, Accounts Payable			(100,000,000)
Disposal Group, Including Discontinued Operation, Other Current Liabilities			(91,000,000)
Disposal Group, Including Discontinued Operation, Pension Plan Benefit Obligation			(233,000,000)
Disposal group, including discontinued operations, environmental contingencies			(31,000,000)
Liabilities of Disposal Group, Including Discontinued Operation, Noncurrent			(59,000,000)
Disposal group, including discontinued operations, noncontrolling interest			(18,000,000)
Disposal group, including discontinued operations, Net Assets attributable to parent			$ 256,000,000