v3.25.1
Investments AFS Securities by Major Type (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2024
Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]        
Amortized cost of AFS [1] $ 20,336 $ 20,274    
Allowance for Credit Losses (30) (30) $ (26) $ (31)
Gross Unrealized Gains 111 97    
Gross Unrealized Losses (24) (29)    
Fair Value of AFS Securities 20,393 20,312    
Available-for-Sale, Accrued Interest, after Allowance for Credit Loss $ 93 92    
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Interest Receivable      
US Treasury Notes        
Debt Securities, Available-for-sale [Line Items]        
Amortized cost of AFS $ 6,451 6,506    
Allowance for Credit Losses 0 0    
Gross Unrealized Gains 3 4    
Gross Unrealized Losses (1) 0    
Fair Value of AFS Securities 6,453 6,510    
State housing agency obligations        
Debt Securities, Available-for-sale [Line Items]        
Amortized cost of AFS 11      
Allowance for Credit Losses 0      
Gross Unrealized Gains 0      
Gross Unrealized Losses 0      
Fair Value of AFS Securities 11      
PLRMBS        
Debt Securities, Available-for-sale [Line Items]        
Amortized cost of AFS 961 978    
Allowance for Credit Losses (30) (30)    
Gross Unrealized Gains 31 31    
Gross Unrealized Losses (20) (22)    
Fair Value of AFS Securities 942 957    
Mortgage Backed Securities        
Debt Securities, Available-for-sale [Line Items]        
Amortized cost of AFS [1] 13,874 13,768    
Allowance for Credit Losses (30) (30)    
Gross Unrealized Gains 108 93    
Gross Unrealized Losses (23) (29)    
Fair Value of AFS Securities 13,929 13,802    
Multifamily | MBS - GSEs        
Debt Securities, Available-for-sale [Line Items]        
Amortized cost of AFS 12,913 12,790    
Allowance for Credit Losses 0 0    
Gross Unrealized Gains 77 62    
Gross Unrealized Losses (3) (7)    
Fair Value of AFS Securities $ 12,987 $ 12,845    
[1] Amortized cost includes unpaid principal balance, unamortized premiums and discounts, net charge-offs, and valuation adjustments for hedging activities, and excludes accrued interest receivable of $93 million and $92 million at March 31, 2025, and December 31, 2024, respectively.