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Financial Instruments, Derivatives and Hedging Activities - Additional information - CF hedges (Details) - Cash Flow Hedging - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Hedging relationships |  |  |  |
Amount of Gains (Losses) Recognized in OCI | $ (17) | $ (2) | $ (16) | $ (1)
Gain (loss) reclassified from accumulated OCI into earnings | 3 | (2) | (3) | (5)
Commodity Contracts |  |  |  |
Hedging relationships |  |  |  |
Amount of Gains (Losses) Recognized in OCI | (20) | (5) | (20) | (2)
Commodity Contracts | Cost of sales |  |  |  |
Hedging relationships |  |  |  |
Gain (loss) reclassified from accumulated OCI into earnings | 2 | (2) | (1) | (5)
Foreign Currency Contracts |  |  |  |
Hedging relationships |  |  |  |
Amount of Gains (Losses) Recognized in OCI | 3 | $ 3 | 4 | 1
Foreign Currency Contracts | Cost of sales |  |  |  |
Hedging relationships |  |  |  |
Gain (loss) reclassified from accumulated OCI into earnings |  |  | 1 | (1)
Foreign Currency Contracts | Net sales/Cost of sales |  |  |  |
Hedging relationships |  |  |  |
Gain (loss) reclassified from accumulated OCI into earnings | $ 1 |  | (1) | 1
Interest Rate Contracts | Financing costs, net |  |  |  |
Hedging relationships |  |  |  |
Gain (loss) reclassified from accumulated OCI into earnings |  |  | $ (1) | $ (1)

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