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Derivatives and Hedging Activities (Details Textual) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Derivative [Line Items] |  |  |  |  |
Margin on interest rate swaps | $ 137 |  | $ 137 |  | $ 8
Carrying values of hedged liabilities | 9,200 |  | 9,200 |  | 7,800
Cumulative amount of fair value hedging adjustment | (250) |  | (250) |  | (236)
Net increase (decrease) in interest expense on long term debt and other | 47 | $ 3 | 130 | $ (88) |
Fair Value Hedging | Fixed-Rate Debt Obligations |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Fixed-rate debt obligations designated in fair value hedging relationships | 9,500 |  | 9,500 |  | 8,100
Net Investment Hedges |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional amount of derivatives | 13,100 |  | 13,100 |  | 12,500
Gains (losses) on net investment hedges, net of taxes | 244 | 520 | (261) | 728 |
Reclassifications out of AOCI | 0 | 0 | 0 | 0 |
Foreign Exchange Contract | Not Designated as Hedging Instrument |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional amount of derivatives | 22,300 |  | 22,300 |  | 21,700
Foreign Exchange Contract | Not Designated as Hedging Instrument | Other Expense |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Gains in changes in fair value of derivatives not designated as hedges | 26 | 23 | 56 | 10 |
Equity Linked Embedded Derivative | Not Designated as Hedging Instrument |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional amount of derivatives | 78 |  | 78 |  | $ 78
Equity Linked Embedded Derivative | Not Designated as Hedging Instrument | Noninterest Income |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Losses on embedded derivative | $ 12 | $ 0 | $ 12 | $ 4 |

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- Definition Gain (Loss) in Changes of Fair Value of Derivatives Not Designated as Hedges + References No definition available. + Details
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- Definition Amount posted as initial margin for centrally cleared interest rate swaps which is not netted against the derivative balances. + References No definition available. + Details
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- Definition Represents the amount of a net increase (decrease) to interest expense on long-term debt and other, primarily related to the net settlements on the Company's fair value hedges. + References No definition available. + Details
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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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480237/815-40-50-5 + 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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- Definition Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 15 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//815-15/tableOfContent + Details
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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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