v3.25.4
Derivatives and Hedge Accounting - Narrative (Details) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Credit derivatives:      
Derivative Asset, Statement of Financial Position [Extensible Enumeration] Other assets Other assets  
Derivative Liability, Statement of Financial Position [Extensible Enumeration] Other liabilities Other liabilities  
Reclassification into interest expense $ 28,000,000 $ 28,000,000 $ 28,000,000
Amounts to be reclassified in the next 30 years $ 118,000,000    
Maximum duration of hedging relationship 30 years    
Amounts to be reclassified in the next twelve months $ 28,000,000    
Amounts excluded from the assessment of hedge effectiveness that are recognized into earnings 0    
Foreign currency translation gain (loss) adjustment related to net investment hedge relationships 173,000,000 (218,000,000)  
Currency Swap      
Credit derivatives:      
Foreign currency translation gain (loss) adjustment related to net investment hedge relationships (8,000,000) 6,000,000 $ (3,000,000)
Net Investment Income      
Credit derivatives:      
Foreign currency translation gain (loss) adjustment related to net investment hedge relationships (49,000,000) (41,000,000)  
Nonrelated Party      
Credit derivatives:      
Collateral posted 1,200,000,000 1,400,000,000  
Collateral obtained from third parties for derivative transactions 4,000,000,000 2,700,000,000  
Related Party      
Credit derivatives:      
Collateral posted 0 0  
Collateral obtained from third parties for derivative transactions $ 0 $ 21,000,000