Finance Receivables and Loans, Net (Schedule of Purchases of Financing Receivables and Loans) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total purchases of finance receivables and loans	$ 985	$ 767
Consumer | Automotive
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total purchases of finance receivables and loans	981	758
Consumer | Consumer mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total purchases of finance receivables and loans	4	2
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total purchases of finance receivables and loans	$ 0	$ 7