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Unsecured Borrowings - Schedule of Unsecured Borrowings (Detail) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
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Debt Disclosure [Abstract] |  |
Unsecured short-term borrowings | $ 72,385 | $ 69,709
Unsecured long-term borrowings | 276,914 | 242,634
Total | $ 349,299 | $ 312,343

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- Definition Carrying value as of the balance sheet date of unsecured short-term borrowings (with maturities due within one year) including the current portion of unsecured long-term borrowings. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Represents the aggregate of total long-term debt, including current maturities and short-term debt. + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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