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Note 19 - Reportable Segments (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Note 19 - Reportable Segments (Details) [Line Items]        
Restructuring Costs and Asset Impairment Charges (in Dollars)     $ 51  
Tax Adjustments, Settlements, and Unusual Provisions (in Dollars)       (54)
Other Segments [Member]
        
Note 19 - Reportable Segments (Details) [Line Items]        
Tax Adjustments, Settlements, and Unusual Provisions (in Dollars)       (54)
Display Technologies [Member]
        
Note 19 - Reportable Segments (Details) [Line Items]        
Restructuring Costs and Asset Impairment Charges (in Dollars) 3   42  
Number of Customers Individually Accounting for 10% or More of Each Segment's Sales 3   3  
Percent of Total Segment Sales 60.00%   61.00%  
Optical Communications [Member]
        
Note 19 - Reportable Segments (Details) [Line Items]        
Restructuring Costs and Asset Impairment Charges (in Dollars)     12  
Number of Customers Individually Accounting for 10% or More of Each Segment's Sales 1   1  
Percent of Total Segment Sales 13.00%   10.00%  
Environmental Technologies [Member]
        
Note 19 - Reportable Segments (Details) [Line Items]        
Number of Customers Individually Accounting for 10% or More of Each Segment's Sales 3   3  
Percent of Total Segment Sales 89.00%   88.00%  
Specialty Materials [Member]
        
Note 19 - Reportable Segments (Details) [Line Items]        
Number of Customers Individually Accounting for 10% or More of Each Segment's Sales 3   3  
Percent of Total Segment Sales 50.00%   48.00%  
Life Sciences [Member]
        
Note 19 - Reportable Segments (Details) [Line Items]        
Number of Customers Individually Accounting for 10% or More of Each Segment's Sales 2   2  
Percent of Total Segment Sales 47.00%   45.00%  
Dow Corning Corporation [Member] | Energy Tax Credit [Member]
        
Note 19 - Reportable Segments (Details) [Line Items]        
Income Tax Credits and Adjustments (in Dollars) 8      
Dow Corning Corporation [Member] | Foreign Tax Credit [Member]
        
Note 19 - Reportable Segments (Details) [Line Items]        
Income Tax Credits and Adjustments (in Dollars) 38      
Dow Corning Corporation [Member] | Equity Investment [Member]
        
Note 19 - Reportable Segments (Details) [Line Items]        
Restructuring Costs and Asset Impairment Charges (in Dollars)       11
Dow Corning Corporation [Member]
        
Note 19 - Reportable Segments (Details) [Line Items]        
Derivative, Loss on Derivative (in Dollars) 8      
Derivative, Gain on Derivative (in Dollars)   16 29 16
Gain (Loss) on Contract Termination (in Dollars)   30   30
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount (in Dollars)   $ 4   $ 4
Minimum [Member]
        
Note 19 - Reportable Segments (Details) [Line Items]        
Number of Material Formulations     150