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Commitments (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
The Company's commitments      
Operating leases, Total $ 381    
Operating leases, 2012 111    
Operating leases, 2013 63    
Operating leases, 2014 41    
Operating leases, 2015 36    
Operating leases, 2016 32    
Operating leases, Thereafter 98    
Other obligations, Total 452    
Other obligations, 2012 223    
Other obligations, 2013 81    
Other obligations, 2014 47    
Other obligations, 2015 30    
Other obligations, 2016 26    
Other obligations, Thereafter 45    
Company's commitments, Total 1,310    
Company's commitments, 2012 766    
Company's commitments, 2013 176    
Company's commitments, 2014 97    
Company's commitments, 2015 69    
Company's commitments, 2016 58    
Company's commitments, Thereafter 144    
Recorded Unconditional Purchase Obligation [Line Items]      
Purchase obligations, Total 477    
Purchase obligations, 2011 432    
Purchase obligations, 2012 32    
Purchase obligations, 2013 9    
Purchase obligations, 2014 3    
Purchase obligations, 2015 0    
Purchase obligations, Thereafter 1    
Commitments (Textual) [Abstract]      
Operating lease expenses 135 135 174
Equipment purchase [Member]
      
Recorded Unconditional Purchase Obligation [Line Items]      
Purchase obligations, Total 208    
Purchase obligations, 2011 208    
Purchase obligations, 2012 0    
Purchase obligations, 2013 0    
Purchase obligations, 2014 0    
Purchase obligations, 2015 0    
Purchase obligations, Thereafter 0    
Foundry purchase [Member]
      
Recorded Unconditional Purchase Obligation [Line Items]      
Purchase obligations, Total 119    
Purchase obligations, 2011 119    
Purchase obligations, 2012 0    
Purchase obligations, 2013 0    
Purchase obligations, 2014 0    
Purchase obligations, 2015 0    
Purchase obligations, Thereafter 0    
Software, technology licenses and design [Member]
      
Recorded Unconditional Purchase Obligation [Line Items]      
Purchase obligations, Total 150    
Purchase obligations, 2011 105    
Purchase obligations, 2012 32    
Purchase obligations, 2013 9    
Purchase obligations, 2014 3    
Purchase obligations, 2015 0    
Purchase obligations, Thereafter $ 1