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DERIVATIVE FINANCIAL INSTRUMENTS - Notional Amount of Derivative Positions (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
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.

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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

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