Commitments and Contingent Liabilities (Litigation) (Narrative) (Details) (USD $) In Millions, unless otherwise specified		12 Months Ended		3 Months Ended	9 Months Ended	12 Months Ended			3 Months Ended		1 Months Ended
	Sep. 30, 2013 PFOA Matters [Member]	Dec. 31, 2004 PFOA Matters: Drinking Water Actions [Member] resident	Jan. 31, 2012 PFOA Matters: Drinking Water Actions [Member]	Sep. 30, 2013 PFOA Matters: Additional Actions [Member]	Sep. 30, 2013 PFOA Matters: Additional Actions [Member]	Dec. 31, 2012 Monsanto Patent Dispute [Member]	Sep. 30, 2013 Monsanto Fixed Royalty Payments 2014 - 2017 [Member]	Sep. 30, 2013 Monsanto per Unit Royalty Payments 2018 - 2023 [Member]	Sep. 30, 2013 Titanium Dioxide Antitrust Litigation [Member]	Feb. 01, 2010 Titanium Dioxide Antitrust Litigation [Member]	Jul. 31, 2005 Payment for Plaintiffs Attorney Fees [Member] PFOA Matters: Drinking Water Actions [Member]	Jul. 31, 2005 Payment to fund community health project [Member] PFOA Matters: Drinking Water Actions [Member]	Sep. 30, 2013 Funding for medical monitoring program [Member] PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, at carrying value	$ 15
Binding settlement agreement, class size		80,000
Settlement payments											23	70
Loss contingency, potential additional loss													235
Escrow deposit			1
Lawsuits alleging personal injury				45	45
Lawsuits alleging wrongful death				2	2
Increase in lawsuits				1	21
Jury awarded damages						1,000
Payments under license agreements							802	950
Lawsuits alleging antitrust violations										2
Loss Contingency									$ 72