Related Party Transactions - Transactions (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
Finance receivables, net of fees	$ 84,637	$ 74,514
Revolving credit facilities \| Line of Credit \| Cruise, LLC
Related Party Transaction [Line Items]
Cruise receivables	353	113
Related Party
Related Party Transaction [Line Items]
Finance receivables, net of fees	508	469
Taxes payable	384	8
Leased vehicle subvention earned	1,537	1,916	$ 2,702
Commercial Finance Receivables
Related Party Transaction [Line Items]
Finance receivables, net of fees	14,216	11,254
Commercial Finance Receivables \| Related Party
Related Party Transaction [Line Items]
Finance receivables, net of fees	164	187
Commercial loan funding payable	55	105
Interest subvention earned	108	63	28
Retail Finance Receivables
Related Party Transaction [Line Items]
Finance receivables, net of fees	70,421	63,260
Retail Finance Receivables \| Related Party
Related Party Transaction [Line Items]
Interest subvention earned	$ 1,126	$ 921	$ 792

Related Party, Leased Vehicle Income Earned

No definition available.

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- Definition

Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

+ References

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- Definition

Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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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

Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes.

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