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Derivative and Credit-Related Financial Instruments (Schedule of the Effects of Fair Value Hedging on the Consolidated Statements of Comprehensive Income (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Effects of fair value hedging on the Consolidated Statements o Comprehensive Income [Line Items] |  |  |  |
Total interest on medium- and long-term debt | $ 106 | $ 26 | $ 273 | $ 47
Swaps - fair value - receive fixed/pay floating | Risk management purposes | Interest rate swap |  |  |  |
Effects of fair value hedging on the Consolidated Statements o Comprehensive Income [Line Items] |  |  |  |
Hedged items | 74 | 28 | 194 | 79
Derivatives designated as hedging instruments | $ 32 | $ (2) | $ 79 | $ (32)

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