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Investments (Tables)
 6 Months Ended
Jun. 30, 2012
Schedule of Equity Method Investments [Line Items]  
Equity Method Investments
 
Ownership
interest (1)
  
June 30,
2012
  
December 31,
2011
Affiliated companies accounted for by the equity method
              
Samsung Corning Precision Materials Co., Ltd.
50%
  
$
3,259
  
$
3,315
Dow Corning Corporation
50%
    
1,256
    
1,160
All other
20-50%
    
352
    
248
       
4,867
    
4,723
Other investments
      
3
    
3
Total
    
$
4,870
  
$
4,726

(1)
Amounts reflect Corning's direct ownership interests in the respective affiliated companies.  Corning does not control any of these entities.
Related Party Information For Investments In Affiliates
 
Three months ended
June 30,
  
Six months ended
June 30,
 
2012
  
2011
  
2012
  
2011
Related Party Transactions:
                      
Corning sales to affiliated companies
$
6
  
$
6
  
$
13
  
$
12
Corning purchases from affiliated companies
$
50
  
$
19
  
$
68
  
$
56
Corning transfers of assets, at cost, to affiliated companies
$
25
  
$
27
  
$
40
  
$
61
Dividends received from affiliated companies
$
3
  
$
69
  
$
521
  
$
389
Royalty income from affiliated companies
$
22
  
$
66
  
$
44
  
$
127
Corning services to affiliates
$
6
  
$
13
  
$
16
  
$
21
Samsung Corning Precision Materials Co., Ltd. [Member]
  
Schedule of Equity Method Investments [Line Items]  
Affiliate Results Of Operations
 
Three months ended
June 30,
  
Six months ended
June 30,
 
2012
  
2011
  
2012
  
2011
                       
Statement of Operations:
                      
Net sales
$
785
  
$
1,209
  
$
1,569
  
$
2,350
Gross profit
$
540
  
$
892
  
$
1,064
  
$
1,747
Net income attributable to Samsung Corning Precision
$
402
  
$
638
  
$
773
  
$
1,248
Corning's equity in earnings of Samsung Corning Precision
$
193
  
$
325
  
$
376
  
$
624
                       
Related Party Transactions:
                      
Corning purchases from Samsung Corning Precision
$
42
  
$
11
  
$
52
  
$
41
Dividends received from Samsung Corning Precision
            
$
518
  
$
205
Royalty income from Samsung Corning Precision
$
21
  
$
64
  
$
43
  
$
125
Corning transfers of machinery and equipment to Samsung Corning Precision at cost (1)
$
25
  
$
27
  
$
40
  
$
61

(1)
Corning purchases machinery and equipment on behalf of Samsung Corning Precision to support its capital expansion initiatives.  The machinery and equipment are transferred to Samsung Corning Precision at our cost basis.
Dow Corning Corporation [Member]
  
Schedule of Equity Method Investments [Line Items]  
Affiliate Results Of Operations
 
Three months ended
June 30,
  
Six months ended
June 30
 
2012
  
2011
  
2012
  
2011
                       
Statement of Operations:
                      
Net sales
$
1,571
  
$
1,668
  
$
3,093
  
$
3,247
Gross profit
$
395
  
$
533
  
$
732
  
$
1,072
Net income attributable to Dow Corning
$
121
  
$
191
  
$
192
  
$
370
Corning's equity in earnings of Dow Corning
$
61
  
$
95
  
$
96
  
$
186
                       
Related Party Transactions:
                      
Corning purchases from Dow Corning
$
6
  
$
6
  
$
12
  
$
12
Dividends received from Dow Corning
      
$
65
        
$
180