v3.25.1
Investments Classification of Held-to-Maturity Securities (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Schedule of Held-to-maturity Securities [Line Items]    
Held-to-maturity (HTM) securities (fair values of $1,436 and $1,469, respectively) [1] $ 1,454 $ 1,489
Gross Unrecognized Holding Gain [2] 2 2
Gross Unrecognized Holding Loss [2] (20) (22)
Fair value of held-to-maturity securities 1,436 1,469
HTM accrued interest, after allowance for credit loss 5  
Other US Obligations    
Schedule of Held-to-maturity Securities [Line Items]    
Held-to-maturity (HTM) securities (fair values of $1,436 and $1,469, respectively) 25 29
Gross Unrecognized Holding Gain 0 0
Gross Unrecognized Holding Loss (1) (1)
Fair value of held-to-maturity securities 24 28
MBS - GSEs    
Schedule of Held-to-maturity Securities [Line Items]    
Held-to-maturity (HTM) securities (fair values of $1,436 and $1,469, respectively) [1] 1,333 1,359
Gross Unrecognized Holding Gain [2] 2 2
Gross Unrecognized Holding Loss [2] (14) (15)
Fair value of held-to-maturity securities 1,321 1,346
PLRMBS    
Schedule of Held-to-maturity Securities [Line Items]    
Held-to-maturity (HTM) securities (fair values of $1,436 and $1,469, respectively) [1] 96 101
Gross Unrecognized Holding Gain [2] 0 0
Gross Unrecognized Holding Loss [2] (5) (6)
Fair value of held-to-maturity securities 91 95
Single Family [Member] | MBS - GSEs    
Schedule of Held-to-maturity Securities [Line Items]    
Held-to-maturity (HTM) securities (fair values of $1,436 and $1,469, respectively) [1] 470 495
Gross Unrecognized Holding Gain [2] 2 2
Gross Unrecognized Holding Loss [2] (11) (13)
Fair value of held-to-maturity securities 461 484
Multifamily | MBS - GSEs    
Schedule of Held-to-maturity Securities [Line Items]    
Held-to-maturity (HTM) securities (fair values of $1,436 and $1,469, respectively) [1] 863 864
Gross Unrecognized Holding Gain [2] 0 0
Gross Unrecognized Holding Loss [2] (3) (2)
Fair value of held-to-maturity securities $ 860 $ 862
[1] Amortized cost includes unpaid principal balance, unamortized premiums and discounts, and net charge-offs, and excludes accrued interest receivable of $5 million at March 31, 2025, and December 31, 2024.
[2] Gross unrecognized holding gains/(losses) represent the difference between estimated fair value and net carrying value