Finance Receivables and Loans, Net (Schedule of Purchases of Financing Receivables and Loans) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables and loans, significant purchases	$ 6,891	$ 7,247
Fair value, measurements, recurring
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables and loans, significant purchases	12	14
Consumer | Automotive
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables and loans, significant purchases	4,092	2,506
Consumer | Consumer mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables and loans, significant purchases	2,781	3,853
Consumer | Consumer other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables and loans, significant purchases	0	882
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables and loans, significant purchases	$ 18	$ 6