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FINANCIAL INSTRUMENTS (Balance Sheets) (Details) - Long-term Debt - Fair Value Hedging - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018
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Derivative [Line Items] |  |
Carrying Amount of Hedged Long-Term Debt | $ 1,198 | $ 1,125
Fair value basis adjustments attributable to hedged debt | 11 | (53)
Hedging adjustment on a discontinued relationship | $ 28 | $ 40

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- Definition Amount of cumulative increase (decrease) in fair value of hedged liability in fair value hedge, attributable to hedged risk, remaining after discontinued hedge. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4EE -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109999712-113959 + Details
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