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v3.20.1

Segment Information - Revenue by Geographic Area (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Segment Reporting Information [Line Items] |  |
Revenue | $ 7,455 | $ 7,879
Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Revenue | 7,455 | 7,879
Operating Segments | North America |  |
Segment Reporting Information [Line Items] |  |
Revenue | 2,279 | 2,738
Operating Segments | Latin America |  |
Segment Reporting Information [Line Items] |  |
Revenue | 945 | 992
Operating Segments | Europe/CIS/Africa |  |
Segment Reporting Information [Line Items] |  |
Revenue | 1,751 | 1,707
Operating Segments | Middle East & Asia |  |
Segment Reporting Information [Line Items] |  |
Revenue | 2,425 | 2,338
Eliminations & other |  |
Segment Reporting Information [Line Items] |  |
Revenue | $ 55 | $ 104

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