Finance Receivables and Loans, Net (Commercial Concentration Risk) (Details) - Commercial - Commercial real estate - Geographic Concentration Risk - Financing Receivable	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total commercial criticized finance receivables and loans	100.00%	100.00%
Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total commercial criticized finance receivables and loans	17.90%	16.40%
Texas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total commercial criticized finance receivables and loans	14.90%	13.90%
California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total commercial criticized finance receivables and loans	8.40%	8.30%
New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total commercial criticized finance receivables and loans	6.30%	3.80%
North Carolina
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total commercial criticized finance receivables and loans	5.30%	5.80%
Michigan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total commercial criticized finance receivables and loans	4.20%	5.80%
Ohio
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total commercial criticized finance receivables and loans	4.20%	3.40%
Georgia
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total commercial criticized finance receivables and loans	3.10%	3.30%
Utah
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total commercial criticized finance receivables and loans	2.90%	3.00%
Illinois
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total commercial criticized finance receivables and loans	2.70%	2.90%
Other United States
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total commercial criticized finance receivables and loans	30.10%	33.40%