Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite Lived Intangible Assets [Line Items]
Estimated amortization charged to income, 2016	$ 373
Estimated amortization charged to income, 2017	365
Estimated amortization charged to income, 2018	357
Estimated amortization charged to income, 2019	341
Estimated amortization charged to income, 2020	319
Amortization expense	$ 354	$ 344	$ 330
Customer Relationships | Minimum
Finite Lived Intangible Assets [Line Items]
Amortization period	18 years
Customer Relationships | Maximum
Finite Lived Intangible Assets [Line Items]
Amortization period	28 years
Technology/Technical Know-How | Minimum
Finite Lived Intangible Assets [Line Items]
Amortization period	10 years
Technology/Technical Know-How | Maximum
Finite Lived Intangible Assets [Line Items]
Amortization period	18 years
Tradenames | Minimum
Finite Lived Intangible Assets [Line Items]
Amortization period	15 years
Tradenames | Maximum
Finite Lived Intangible Assets [Line Items]
Amortization period	30 years