Finance Receivables and Loans, Net (Finance Receivables and Loans Redefaulted During the Period) (Details) $ in Millions	12 Months Ended
Dec. 31, 2022 USD ($) loan	Dec. 31, 2021 USD ($) loan
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan	9,689	9,300
Amortized cost	$ 146	$ 119
Charge-off amount	$ 95	$ 61
Consumer
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan	9,688	9,300
Amortized cost	$ 145	$ 119
Charge-off amount	$ 64	$ 61
Consumer \| Automotive
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan	9,227	9,295
Amortized cost	$ 143	$ 119
Charge-off amount	$ 64	$ 61
Consumer \| Consumer mortgage
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan	4	5
Amortized cost	$ 2	$ 0
Charge-off amount	$ 0	$ 0
Consumer \| Mortgage Finance
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan	4	1
Amortized cost	$ 2	$ 0
Charge-off amount	$ 0	$ 0
Consumer \| Mortgage — Legacy
Accounts, Notes, Loans and Financing Receivable
Number of loans \| loan		4
Amortized cost		$ 0
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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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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Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
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+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
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