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Derivatives - Cumulative Basis Adjustment for Fair Value Hedges (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
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Location and Fair Value Amount of Derivative Instruments |  |
Hedged Liability, Statement of Financial Position [Extensible Enumeration] | Long-term debt | Long-term debt
Fair value hedges |  |
Location and Fair Value Amount of Derivative Instruments |  |
Carrying Value of the Hedged Liabilities | $ 937 | $ 918
Fair value hedges | Long-term debt |  |
Location and Fair Value Amount of Derivative Instruments |  |
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Value of the Hedged Liabilities | $ (65) | $ (84)

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- Definition Amount of liability hedged in fair value hedging relationship. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4EE -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4EE + 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 -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4EE -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4EE + Details
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- Definition Indicates line item in statement of financial position that includes hedged liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4EE -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4EE + Details
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