Employee Separation / Asset Related Charges, Net (2017 Restructuring Program schedule) (Details) - 2017 Restructuring Program [Member] $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($)		Jun. 30, 2017 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 160		$ 312
Restructuring reserve, payments			(5)
Restructuring reserve, asset write-offs			(279)
Restructuring Reserve	28		28
Severance and Related Benefit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			33
Restructuring reserve, payments			(5)
Restructuring reserve, asset write-offs			0
Restructuring Reserve	28		28
Asset Related Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	160		279	[1]
Restructuring reserve, payments			0	[1]
Restructuring reserve, asset write-offs			(279)	[1]
Restructuring Reserve	0	[1]	0	[1]
Electronics & Communications [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	1		6
Industrial Biosciences [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0		6
Nutrition & Health [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0		2
Performance Materials [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	2		13
Protection Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	157		281
Corporate Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 0		$ 4

[1] Includes accelerated depreciation related to site closure. Charge for accelerated depreciation represents the difference between the depreciation expense to be recognized over the revised useful life of the site, based upon the anticipated date the site will be closed and depreciation expense as determined utilizing the useful life prior to the restructuring action.