Finance Receivables and Loans, Net - Schedule of Finance Receivables and Loans Redefaulted During the Period (Details) $ in Millions	12 Months Ended
Dec. 31, 2022 USD ($) loan
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan	9,689
Amortized cost	$ 146
Charge-off amount	$ 95
Consumer
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan	9,688
Amortized cost	$ 145
Charge-off amount	$ 64
Consumer \| Automotive
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan	9,227
Amortized cost	$ 143
Charge-off amount	$ 64
Consumer \| Consumer mortgage
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan	4
Amortized cost	$ 2
Charge-off amount	$ 0
Consumer \| Other
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan	457
Amortized cost	$ 0
Charge-off amount	$ 0
Consumer \| Credit Card
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan	457
Amortized cost	$ 0
Charge-off amount	$ 0
Commercial
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan	1
Amortized cost	$ 1
Charge-off amount	$ 31
Commercial \| Other
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan	1
Amortized cost	$ 1
Charge-off amount	$ 31

Financing Receivables, Troubled Debt Restructuring, Write-down

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