v3.26.1
Fair Value Measurements - Schedule of Investments in Unrealized Loss Position (Details) - Securitization residual assets
$ in Millions
Mar. 31, 2026
USD ($)
security
Dec. 31, 2025
USD ($)
security
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Debt Securities, Available-for-Sale, Unrealized Loss Position $ 40 $ 31
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer 188 188
Unrealized Losses    
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss 2 1
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss $ 53 $ 51
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Number of Positions [Abstract]    
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security 10 8
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security 85 87