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DERIVATIVE FINANCIAL INSTRUMENTS - Notional Amount of Derivative Positions (Details) - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
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Disclosure of detailed information about hedging instruments [line items] |  |
Nominal amount of hedging instrument | $ 8,829 | $ 8,904
Foreign exchange contracts |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Nominal amount of hedging instrument | 3,816 | 4,488
Interest rates swaps and other |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Nominal amount of hedging instrument | $ 5,013 | $ 4,416

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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