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Derivative And Credit-Related Financial Instruments (Schedule Of Weighted Average Maturity And Interest Rates On Risk Management Fair Value Swaps) (Details) - Interest rate swap - Fair value swaps - receive fixed/pay floating - Risk management purposes - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Fair value hedge, cumulative increase (decrease) |  | $ (66) | $ (124)
Discounted fair value hedge, cumulative increase (decrease) |  | 3 | 4
Long-term Debt |  |  |
Carrying value of hedged items | [1] | $ 7,084 | $ 3,024
Time to maturity (in years) |  | 3 years 6 months | 3 years 10 months 24 days
Receive rate |  | 3.67% | 3.52%
Pay rate | [2] | 5.22% | 4.90%
[1] | Included $(66) million and $(124) million of cumulative hedging adjustments at March 31, 2023 and December 31, 2022, respectively, which included $3 million and $4 million, respectively, of hedging adjustment on a discontinued hedging relationship.
[2] | Floating rates paid on receive fixed swaps designated as fair value hedges are based on one-month LIBOR or SOFR rates in effect at March 31, 2023 and December 31, 2022. Derivative contracts with maturity dates beyond the LIBOR cessation date will fall back to the daily SOFR with a spread adjustment.

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- Definition Average fixed interest rate related to the group of interest rate derivatives. + References No definition available. + Details
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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 https://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959 + Details
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- Definition Amount of cumulative increase (decrease) in fair value of hedged liability in fair value hedge, attributable to hedged risk. + 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 (b) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959 + Details
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