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FINANCIAL INSTRUMENTS (Balance Sheets) (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Derivative [Line Items] |  |
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Long-Term Debt | $ (53) |
Hedging adjustment on a discontinued relationship | 40 | $ 56
Long-term Debt [Member] | Fair Value Hedging [Member] |  |
Derivative [Line Items] |  |
Carrying Amount of Hedged Long-Term Debt | 1,125 | 1,132
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Long-Term Debt | $ (53) | $ (33)

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- Definition Amount as of the balance sheet date of the unamortized adjustment to the carrying value of an interest-bearing hedged item made under an effective fair value hedge that is amortized upon discontinuation of the fair value hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 35 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=82917030&loc=d3e75592-113984 + Details
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- Definition Amount of the hedged item as of the balance sheet date related to the derivative. For example, the hedged balance on a debt instrument. + References No definition available. + Details
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