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Commitments And Contingencies (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended 6 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Mar. 31, 2010
Jun. 30, 2011
Jun. 30, 2010
Dec. 31, 2010
Jun. 30, 2011
Corning Inc. [Member]
Dec. 31, 2007
Corning Inc. [Member]
Jun. 30, 2011
Corning Inc. [Member]
Asbestos Litigation [Member]
Jun. 30, 2011
Corning Inc. [Member]
PPG Industries, Inc. [Member]
Mar. 31, 2011
Corning Inc. [Member]
PPG Industries, Inc. [Member]
Jun. 30, 2011
Contingent Guarantees [Member]
Dec. 31, 2010
Contingent Guarantees [Member]
Jun. 30, 2011
Environmental Cleanup and Related Litigation [Member]
Dec. 31, 2010
Environmental Cleanup and Related Litigation [Member]
Jun. 30, 2011
Asbestos Litigation [Member]
Pittsburgh Corning Corporation [Member]
Jun. 30, 2011
Pittsburgh Corning Corporation [Member]
Apr. 16, 2000
Pittsburgh Corning Corporation [Member]
Commitments And Contingencies [Line Items]                                    
Percent ownership in PCC             50.00% 50.00%   50.00% 50.00%           0.00%  
Number of pending claims                 38,700                 11,800
Number of pending cases                 10,300                  
Loss contingency estimated claims period, years       20                            
Estimated product liability $ 644     $ 644   $ 633                        
Asbestos Litgation charge 5 5   10 7                          
Asbestos settlement credit charge 5 5 (54) 10 (47)                          
Contingencies 324     324   408                        
Notional value of contingent guarantees                       187 230          
Product warranty liability accrual 25     25   24                        
Number of hazardous waste sites 18     18                            
Accrual for contingent loss                           30 30      
Payment for product liability under settlement agreement - within one year                               100    
Payment for product liability under settlement agreement - year two                               50    
Payment for product liability under settlement agreement - year three                               50    
Payment for product liability under settlement agreement - year four                               50    
Payment for product liability under settlement agreement - year five                               50    
Payment for product liability under settlement agreement - year six                               50    
Further modification to amended PCC plan, initial payment                               30    
Further modification to amended PCC, second and fourth payments                               15    
Additional accrual for non-PCC asbestos claims                 $ 150