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Summary of Asset Impairment and Exit Costs (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Impaired Assets to be Disposed of by Method Other than Sale [Line Items]      
Non-cash property, plant and equipment write-downs $ 334 $ 446 $ 345
2014-2018 Restructuring Program      
Impaired Assets to be Disposed of by Method Other than Sale [Line Items]      
Non-cash property, plant and equipment write-downs 206 301 264
2014-2018 Restructuring Program | Latin America Segment      
Impaired Assets to be Disposed of by Method Other than Sale [Line Items]      
Non-cash property, plant and equipment write-downs 36 22 46
2014-2018 Restructuring Program | Asia Middle East Africa Segment      
Impaired Assets to be Disposed of by Method Other than Sale [Line Items]      
Non-cash property, plant and equipment write-downs 81 44 88
2014-2018 Restructuring Program | Europe Segment      
Impaired Assets to be Disposed of by Method Other than Sale [Line Items]      
Non-cash property, plant and equipment write-downs 58 122 65
2014-2018 Restructuring Program | North America Segment      
Impaired Assets to be Disposed of by Method Other than Sale [Line Items]      
Non-cash property, plant and equipment write-downs 30 111 65
2014-2018 Restructuring Program | Corporate Segment      
Impaired Assets to be Disposed of by Method Other than Sale [Line Items]      
Non-cash property, plant and equipment write-downs $ 1 $ 2 $ 0