v2.4.0.6
Goodwill and intangible assets (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Finite-lived intangible assets:    
Gross carrying amount $ 6,400 $ 5,446
Accumulated amortization (3,934) (3,537)
Intangible assets, net 2,466 1,909
Indefinite-lived intangible assets:    
Indefinite-lived intangible assets 1,502 675
Identifiable intangible assets 7,902 6,121
Accumulated amortization (3,934) (3,537)
Identifiable intangible assets, net 3,968 2,584
Acquired product technology rights - Developed product technology [Member]
    
Finite-lived intangible assets:    
Gross carrying amount 2,872 2,872
Accumulated amortization (2,003) (1,811)
Intangible assets, net 869 1,061
Acquired product technology rights - Core technology [Member]
    
Finite-lived intangible assets:    
Gross carrying amount 1,348 1,348
Accumulated amortization (940) (850)
Intangible assets, net 408 498
Acquired product technology rights - Trade name [Member]
    
Finite-lived intangible assets:    
Gross carrying amount 190 190
Accumulated amortization (133) (120)
Intangible assets, net 57 70
Acquired Research and Development technology rights [Member]
    
Finite-lived intangible assets:    
Gross carrying amount 1,094 350
Accumulated amortization (381) (350)
Intangible assets, net 713 0
Other acquired intangible assets [Member]
    
Finite-lived intangible assets:    
Gross carrying amount 896 686
Accumulated amortization (477) (406)
Intangible assets, net 419 280
In-Process Research and Development [Member]
    
Indefinite-lived intangible assets:    
Indefinite-lived intangible assets 1,346 675
Contract Assets [Member]
    
Indefinite-lived intangible assets:    
Indefinite-lived intangible assets $ 156 $ 0