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Derivative Instruments (Effect Of Fair Value Hedge Relationships On Income Statement) (Details) - Interest Swap Contracts [Member] - Fair Value Hedging [Member] - Interest Expense [Member] - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 30, 2022 | Sep. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) recognized in Income | $ 1 | $ 1
Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) recognized in Income | $ (1) | $ (1)

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 + Details
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