Intangible Assets (Details) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Gross book value and accumulated amortization of intangible assets
Gross Book Value	$ 5,821	$ 5,865
Accumulated Amortization	894	703
Net Book Value	4,927	5,162
Technology/Technical Know-How [Member]
Gross book value and accumulated amortization of intangible assets
Gross Book Value	1,835	1,846
Accumulated Amortization	303	215
Net Book Value	1,532	1,631
Tradenames [Member]
Gross book value and accumulated amortization of intangible assets
Gross Book Value	1,671	1,678
Accumulated Amortization	107	61
Net Book Value	1,564	1,617
Customer Relationships [Member]
Gross book value and accumulated amortization of intangible assets
Gross Book Value	1,954	1,963
Accumulated Amortization	185	129
Net Book Value	1,769	1,834
Other [Member]
Gross book value and accumulated amortization of intangible assets
Gross Book Value	361	378
Accumulated Amortization	299	298
Net Book Value	$ 62	$ 80