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Property, Plant and Equipment - Property, Plant and Equipment (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Property, Plant and Equipment [Line Items]    
Gross Cost $ 19,484 $ 19,174
Accumulated Amortization (16,003) (15,254)
Net Cost 3,481 3,920
Land [Member]
    
Property, Plant and Equipment [Line Items]    
Gross Cost 93 86
Net Cost 93 86
Buildings [Member]
    
Property, Plant and Equipment [Line Items]    
Gross Cost 966 955
Accumulated Amortization (395) (363)
Net Cost 571 592
Facilities & leasehold improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Gross Cost 3,151 3,086
Accumulated Amortization (2,649) (2,479)
Net Cost 502 607
Machinery and equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Gross Cost 14,553 14,320
Accumulated Amortization (12,363) (11,828)
Net Cost 2,190 2,492
Computer and R&D equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Gross Cost 504 508
Accumulated Amortization (451) (444)
Net Cost 53 64
Other tangible assets [Member]
    
Property, Plant and Equipment [Line Items]    
Gross Cost 165 169
Accumulated Amortization (145) (140)
Net Cost 20 29
Construction in progress [Member]
    
Property, Plant and Equipment [Line Items]    
Gross Cost 52 50
Net Cost $ 52 $ 50