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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) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2023 | Dec. 31, 2022
Schedule of Weighted Average Maturity And Interest Rates On Risk Management Interest Rate Swaps [Line Items] |  |
Notional/contract amount | $ 81,200 | $ 67,665
Risk management purposes |  |
Schedule of Weighted Average Maturity And Interest Rates On Risk Management Interest Rate Swaps [Line Items] |  |
Notional/contract amount | 39,183 | 30,142
Interest rate swap | Fair value swaps - receive fixed/pay floating | Risk management purposes |  |
Schedule of Weighted Average Maturity And Interest Rates On Risk Management Interest Rate Swaps [Line Items] |  |
Fair value hedge, cumulative increase (decrease) | (188) | (124)
Discounted fair value hedge, cumulative increase (decrease) | 3 | 4
Notional/contract amount | 1,800 |
Interest rate swap | Fair value swaps - receive fixed/pay floating | Risk management purposes | Long-term Debt |  |
Schedule of Weighted Average Maturity And Interest Rates On Risk Management Interest Rate Swaps [Line Items] |  |
Carrying value of hedged items | $ 6,111 | $ 3,024
Time to maturity (in years) | 2 years 9 months 18 days | 3 years 10 months 24 days
Receive rate | 3.67% | 3.52%
Pay rate | 5.39% | 4.90%

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- Definition Schedule of Weighted Average Maturity And Interest Rates On Risk Management Interest Rate Swaps + References No definition available. + Details
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- Definition Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A + Details
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