Intangible Assets - Schedule of Intangible Assets by Major Class (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Finite Lived Intangible Assets [Line Items]
Gross Book Value	$ 6,491	$ 6,299
Accumulated Amortization	1,922	1,645
Net Book Value	4,569	4,654
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross Book Value	2,489	2,531
Accumulated Amortization	645	523
Net Book Value	1,844	2,008
Technology/Technical Know-How
Finite Lived Intangible Assets [Line Items]
Gross Book Value	1,864	1,747
Accumulated Amortization	653	535
Net Book Value	1,211	1,212
Tradenames
Finite Lived Intangible Assets [Line Items]
Gross Book Value	1,625	1,641
Accumulated Amortization	367	319
Net Book Value	1,258	1,322
Other
Finite Lived Intangible Assets [Line Items]
Gross Book Value	513	380
Accumulated Amortization	257	268
Net Book Value	$ 256	$ 112