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Consolidated Statements of Changes in Equity (Parentheticals) - USD ($) $ in Millions | Jun. 30, 2019 | Dec. 31, 2018 | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Equity | $ 18,467 | $ 9,385 | $ 11,106 | $ 11,067
Cumulative translation adjustments |  |  |  |
Equity | 85 |  | 72 |
Additional paid-in capital |  |  |  |
Equity | 283 | 283 | 283 |
Convertible borrowings - equity component |  |  |  |
Equity | $ 38 | $ 38 | $ 38 |

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