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Commitments - Commitments (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Recorded Unconditional Purchase Obligation [Line Items]  
Operating leases, Total $ 277
Operating leases, 2013 71
Operating leases, 2014 46
Operating leases, 2015 36
Operating leases, 2016 27
Operating leases, 2017 24
Operating leases, Thereafter 73
Purchase obligations, Total 521
Purchase obligations, 2013 414
Purchase obligations, 2014 67
Purchase obligations, 2015 40
Purchase obligations, 2016   
Purchase obligations, 2017   
Purchase obligations, Thereafter   
Other obligations, Total 344
Other obligations, 2013 122
Other obligations, 2014 72
Other obligations, 2015 52
Other obligations, 2016 42
Other obligations, 2017 37
Other obligations, Thereafter 19
Company's commitments, Total 1,142
Company's commitments, 2013 607
Company's commitments, 2014 185
Company's commitments, 2015 128
Company's commitments, 2016 69
Company's commitments, 2017 61
Company's commitments, Thereafter 92
Equipment Purchase [Member]
  
Recorded Unconditional Purchase Obligation [Line Items]  
Purchase obligations, Total 175
Purchase obligations, 2013 175
Purchase obligations, 2014   
Purchase obligations, 2015   
Purchase obligations, 2016   
Purchase obligations, 2017   
Purchase obligations, Thereafter   
Foundry Purchase [Member]
  
Recorded Unconditional Purchase Obligation [Line Items]  
Purchase obligations, Total 127
Purchase obligations, 2013 127
Purchase obligations, 2014   
Purchase obligations, 2015   
Purchase obligations, 2016   
Purchase obligations, 2017   
Purchase obligations, Thereafter   
Software, technology licenses and design [Member]
  
Recorded Unconditional Purchase Obligation [Line Items]  
Purchase obligations, Total 219
Purchase obligations, 2013 112
Purchase obligations, 2014 67
Purchase obligations, 2015 40
Purchase obligations, 2016   
Purchase obligations, 2017   
Purchase obligations, Thereafter