Employee Separation / Asset Related Charges, Net Employee Separation / Asset Related Charges, Net (Asset Impairments) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Impaired Long-Lived Assets Held and Used [Line Items]
Asset impairment charges	$ 275
Nonrecurring fair value measurement	150
Performance Chemicals [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Asset impairment charges	33
Electronics and Communications [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Asset impairment charges	150
Performance Materials [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Asset impairment charges	$ 92