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Depreciation Expense and Capital Expenditure by Segment (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Segment Reporting Information [Line Items]      
Depreciation expense $ 638 $ 647 $ 713
Capital expenditures 1,014 1,224 1,514
Latin America Segment      
Segment Reporting Information [Line Items]      
Depreciation expense 107 92 94
Capital expenditures 226 321 354
Asia Middle East Africa Segment      
Segment Reporting Information [Line Items]      
Depreciation expense 157 161 155
Capital expenditures 280 349 381
Europe Segment      
Segment Reporting Information [Line Items]      
Depreciation expense 239 253 299
Capital expenditures 278 294 517
North America Segment      
Segment Reporting Information [Line Items]      
Depreciation expense 135 141 165
Capital expenditures $ 230 $ 260 $ 262