Commitments and Contingent Liabilities (Imprelis) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Product Liability Contingency [Line Items]
Insurance program limits	$ 50	$ 50
Imprelis [Member]
Product Liability Contingency [Line Items]
Plaintiffs' attorney fees paid as part of settlement				$ 7
Loss Contingency				425
Litigation claims, net				352
Insurance recoveries		185	$ 210	73
Agriculture [Member] | Imprelis [Member]
Product Liability Contingency [Line Items]
Loss contingency accrual, period decrease	130	130
Loss Contingency				425
Insurance recoveries			$ 210	$ 73
Accrual balance	$ 41	$ 41