Intangible Assets - Schedule of Intangible Assets by Major Class (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Intangible Assets By Major Class [Line Items]
Gross Book Value	$ 6,477	$ 6,305
Accumulated Amortization	1,739	1,596
Net Book Value	4,738	4,709
Technology/Technical Know-How
Intangible Assets By Major Class [Line Items]
Gross Book Value	1,960	1,960
Accumulated Amortization	650	597
Net Book Value	1,310	1,363
Tradenames
Intangible Assets By Major Class [Line Items]
Gross Book Value	1,646	1,647
Accumulated Amortization	290	257
Net Book Value	1,356	1,390
Customer Relationships
Intangible Assets By Major Class [Line Items]
Gross Book Value	2,441	2,263
Accumulated Amortization	464	407
Net Book Value	1,977	1,856
Other
Intangible Assets By Major Class [Line Items]
Gross Book Value	430	435
Accumulated Amortization	335	335
Net Book Value	$ 95	$ 100