Reconciliation of GAAP to Non-GAAP Gross Margin                             
                                                                            
(Millions except percentages)                      Q3-16    Q2-16    Q3-15  
                                                  -------  -------  ------- 
GAAP Gross Margin                                 $    59  $   319  $   239 
GAAP Gross Margin %                                     5%      31%      23%
  Charge related to the sixth amendment to the                              
   WSA with GF                                        340        -        - 
Non-GAAP Gross Margin                             $   399  $   319  $   239 
Non-GAAP Gross Margin %                                31%      31%      23%
                                                                            
                                                                            
Reconciliation of GAAP to Non-GAAP Operating Expenses                       
                                                                            
(Millions)                                         Q3-16    Q2-16    Q3-15  
                                                  -------  -------  ------- 
GAAP operating expenses                           $   376  $   353  $   397 
  Restructuring and other special charges, net          -       (7)      48 
  Stock-based compensation                             23       18       13 
                                                  -------  -------  ------- 
Non-GAAP operating expenses                       $   353  $   342  $   336 
                                                  -------  -------  ------- 
                                                                            
                                                                            
Reconciliation of GAAP Operating loss to Non-GAAP Operating Income (loss)   
                                                                            
(Millions)                                         Q3-16    Q2-16    Q3-15  
                                                                                                  -------    -------    -------  
GAAP  operating  loss                                                              $    (293)  $        (8)  $    (158)
    Charge  related  to  the  sixth  amendment  to  the                                                            
      WSA  with  GF                                                                                340                -                -  
    Restructuring  and  other  special  charges,  net                    -              (7)            48  
    Stock-based  compensation                                                          23              18              13  
                                                                                                    -------    -------    -------  
Non-GAAP  operating  income  (loss)                                    $        70    $          3    $      (97)
                                                                                                    -------    -------    -------  
                                                                                                                                                        
                                                                                                                                                        
Reconciliation  of  GAAP  to  Non-GAAP  Net  Income  (Loss)/Income  (Loss)  per            
  Share                                                                                                                                            
                                                                                                                                                        
(Millions  except  per  share                                                                                                    
  amounts)                                                  Q3-16                      Q2-16                      Q3-15          
                                                          --------------    --------------    --------------  
GAAP  net  income  (loss)                                                                                                            
  /income  (loss)  per  share        $  (406)  $(0.50)  $      69    $  0.08    $  (197)  $(0.25)
    Charge  related  to  the                                                                                                          
      sixth  amendment  to  the                                                                                                      
      WSA  with  GF                                    340        0.39              -              -              -              -  
    Loss  on  debt  redemption                61        0.07              -              -              -              -  
    Non-cash  interest  expense                                                                                                  
      related  to  convertible                                                                                                      
      debt                                                      1              -              -              -              -              -  
    Restructuring  and  other                                                                                                      
      special  charges,  net                      -              -            (7)    (0.01)          48        0.06  
    Stock-based  compensation              23        0.03            18        0.02            13        0.02  
    Gain  on  sale  of  85%  of                                                                                                        
      ATMP  JV                                                4              -        (150)    (0.19)            -              -  
    Equity  in  income  (loss)  of                                                                                                
      ATMP  JV                                                5        0.01              3              -              -              -  
    Tax  provision  (benefit)                                                                                                      
      related  to  sale  of  85%  of                                                                                                
      ATMP  JV                                              (1)            -            27        0.03              -              -  
                                                          ------    ------    ------    ------    ------    ------  
Non-GAAP  net  income  (loss)/                                                                                                  
  income  (loss)  per  share          $      27    $  0.03    $    (40)  $(0.05)  $  (136)  $(0.17)
                                                          ------    ------    ------    ------    ------    ------