v3.26.3
Securitizations and Variable Interest Entities - Schedule of Cost and Fair Value of Securities (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Variable Interest Entity [Line Items]    
Amortized Cost $ 560 $ 492
Fair Value 557 486
Variable Interest Entity, Not Primary Beneficiary    
Variable Interest Entity [Line Items]    
Fair Value 557 486
Rated notes | Variable Interest Entity, Not Primary Beneficiary    
Variable Interest Entity [Line Items]    
Amortized Cost 429 376
Fair Value 426 378
Certificates and other assets | Variable Interest Entity, Not Primary Beneficiary    
Variable Interest Entity [Line Items]    
Amortized Cost 131 116
Fair Value $ 131 $ 108