Securitization Activities - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Assets securitized in a non-cash exchange for loans and investments	$ 762	$ 364	$ 369
Retained Interests	6,458	5,848
Notional amount related to other continuing involvement	4,130	2,780
Seller financing related to loans sold	340	2,120
Loans sold	425	4,440
Proceeds from collection of finance receivables	596	2,850	$ 1,000
Outstanding Principal Amount	192,909	138,739
Retained interest	6,370	5,780
Corporate debt and other asset-backed
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Retained Interests	511	493
Outstanding Principal Amount	13,904	12,059
Corporate debt and other asset-backed \| Installment
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Outstanding Principal Amount	1,180	1,320
Derivatives And Commitments
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Retained Interests	1,480	847
Other retained interests
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Retained interest	$ 506	$ 491
Weighted average life (years)	4 years 1 month 6 days	5 years
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of Other than 10 or 20 Percent Adverse Change in Other Assumption	$ 511	$ 493

Notional amount related to Other Continuing Involvement.

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- Definition

Seller Financing Receivable

+ References

No definition available.

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- Definition

Weighted average life of securitized assets regardless of when the transfer occurred, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 20
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-Section 50
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- Definition

Amount of beneficial interest received as consideration for transferring noncash financial asset. Includes, but is not limited to, trade receivable in securitization transaction.

+ References

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- Definition

Principal amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets.

+ References

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- Definition

Amount of decrease in financing receivable from sale. Excludes net investment in lease.

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- Definition

The carrying amount (fair value) as of the balance sheet date of the transferor's interests in transferred financial assets (typically securitized receivables, generally not involved in the collection of principal) following transfer of significant portions of such financial instruments to other parties. Such interests could be ancillary cash flows and interest-only strips.

+ References

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- Definition

The cash inflow associated with the collection of receivables arising from the financing of goods and services.

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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.

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- Definition

Fair value portion of interest continued to be held by a transferor after transferring financial assets to a third party.

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The hypothetical financial impact of a specified adverse percentage change in a specified other assumption on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities).

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