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Derivative Financial Instruments - Mark-to-Market Impact of Derivatives on Statements of Income (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Derivative Instruments Gain Loss [Line Items] |  |  |  |  |
Mark-to-market gains (losses) recognized |  | $ (5) | $ 14 | $ (30) | $ 46
Interest Expense and Derivative Instruments Hedging Activities [Member] |  |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |  |
Mark-to-market gains (losses) recognized |  | (1) | 19 | (32) | 51
Designated as Hedging Instrument [Member] | Fair Value [Member] |  |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |  |
Mark-to-market gains (losses) recognized | [1],[2] | 4 | 5 | (2) | 5
Designated as Hedging Instrument [Member] | Fair Value [Member] | Interest Rate Swaps [Member] |  |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |  |
Gains (losses) recognized in net income on derivatives |  | 51 | 6 | 109 | (48)
Gains (losses) recognized in net income on hedged items |  | (55) | (8) | (116) | 50
Net fair value hedge ineffectiveness gains (losses) |  | (4) | (2) | (7) | 2
Designated as Hedging Instrument [Member] | Fair Value [Member] | Cross-Currency Interest Rate Swaps [Member] |  |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |  |
Gains (losses) recognized in net income on derivatives |  | 115 | 1 | 169 | (33)
Gains (losses) recognized in net income on hedged items |  | (107) | 6 | (164) | 36
Net fair value hedge ineffectiveness gains (losses) |  | 8 | 7 | 5 | 3
Designated as Hedging Instrument [Member] | Cash Flow [Member] |  |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |  |
Mark-to-market gains (losses) recognized | [2] | 0 | 0 | 0 | 0
Trading [Member] |  |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |  |
Mark-to-market gains (losses) recognized | [3] | (5) | 14 | (30) | 46
Trading [Member] | Interest Rate Swaps [Member] |  |  |  |  |
Derivative Instruments Gain Loss [Line Items] |  |  |  |  |
Mark-to-market gains (losses) recognized |  | $ (5) | $ 14 | $ (30) | $ 46
[1] | Recorded in interest expense in the consolidated statements of income.
[2] | The accrued interest income (expense) on fair value hedges and cash flow hedges is recorded in interest expense and is excluded from this table
[3] | Recorded in “gains (losses) on derivative and hedging activities, net” in the consolidated statements of income

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- Definition Gains losses recognized in net income on derivatives. + References No definition available. + Details
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- Definition Net fair value hedge ineffectiveness gains losses. + References No definition available. + Details
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- Definition Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 182 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-182 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476148/220-40-50-21 + Details
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- Definition Line items represent financial concepts included in a table. 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