Reserves for Credit Losses - Key Variables (Details)	Dec. 31, 2025	Dec. 31, 2024
U.S. Unemployment Rate | Fourth quarter of 2025
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input	0.04
U.S. Unemployment Rate | Minimum | Fourth quarter of 2025
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input		0.03
U.S. Unemployment Rate | Minimum | First quarter of 2026
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input	0.04	0.03
U.S. Unemployment Rate | Minimum | Fourth quarter of 2026
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input	0.04	0.03
U.S. Unemployment Rate | Minimum | Fourth quarter of 2027
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input	0.04	0.03
U.S. Unemployment Rate | Maximum | Fourth quarter of 2025
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input		0.08
U.S. Unemployment Rate | Maximum | First quarter of 2026
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input	0.06	0.08
U.S. Unemployment Rate | Maximum | Fourth quarter of 2026
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input	0.08	0.07
U.S. Unemployment Rate | Maximum | Fourth quarter of 2027
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input	0.08	0.06
U.S. GDP Growth (Contraction) | Fourth quarter of 2027
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input	0.02
U.S. GDP Growth (Contraction) | Minimum | Fourth quarter of 2025
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input		0.01
U.S. GDP Growth (Contraction) | Minimum | First quarter of 2026
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input	(0.03)	0.01
U.S. GDP Growth (Contraction) | Minimum | Fourth quarter of 2026
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input	0.005	0.02
U.S. GDP Growth (Contraction) | Minimum | Fourth quarter of 2027
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input		0.02
U.S. GDP Growth (Contraction) | Maximum | Fourth quarter of 2025
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input	0.005	0.03
U.S. GDP Growth (Contraction) | Maximum | First quarter of 2026
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input	0.05	0.03
U.S. GDP Growth (Contraction) | Maximum | Fourth quarter of 2026
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input	0.03
U.S. GDP Growth (Contraction) | Maximum | Fourth quarter of 2027
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, reserves for credit losses, measurement input		0.04