DERIVATIVES - Schedule of Fair Value Hedges (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Derivative	$ 57	$ 15	$ 100	$ 47
Hedge of interest rate risk \| Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative	(6)	(5)	(32)	5
Hedged Item	7	4	31	(5)
Hedge Ineffectiveness	$ 1	$ (1)	$ (1)	$ 0

Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 25
-Section 50
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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
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The net gain (loss) recognized in earnings during the period due to the ineffectiveness on interest rate fair value hedges.

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