Quarterly report [Sections 13 or 15(d)]

Securities - Debt Securities (Details)

v3.25.1
Securities - Debt Securities (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2025
Dec. 31, 2024
Available-for-sale debt securities    
Amortized Cost $ 379,224 $ 349,928
Gross Unrealized Gains 449 364
Gross Unrealized Losses (3,424) (3,860)
Fair Value 376,249 346,432
Other Debt Securities, Carried at Fair Value:    
Amortized Cost 12,306 12,352
Gross Unrealized Gains 114 59
Gross Unrealized Losses (110) (236)
Fair Value 12,310 12,175
Debt securities carried at fair value:    
Amortized Cost 391,530 362,280
Gross Unrealized Gains 563 423
Gross Unrealized Losses (3,534) (4,096)
Fair Value 388,559 358,607
Held-to-maturity debt securities    
Amortized Cost 550,756 558,713
Gross Unrealized Gains 2 1
Gross Unrealized Losses (96,350) (108,166)
Fair Value 454,408 450,548
Debt securities:    
Amortized Cost 942,286 920,993
Gross Unrealized Gains 565 424
Gross Unrealized Losses (99,884) (112,262)
Fair Value 842,967 809,155
Securities, pledged as collateral $ 189,700 $ 184,600
Stockholders' Equity, Total | Investment Concentration Risk | Fannie Mae    
Debt securities:    
Concentration risk (more than) 10.00% 10.00%
Stockholders' Equity, Total | Investment Concentration Risk | Freddie Mac    
Debt securities:    
Concentration risk (more than) 10.00% 10.00%
FNMA    
Debt securities carried at fair value:    
Amortized Cost $ 259,300 $ 260,900
Fair Value 213,100 209,600
FHLMC    
Debt securities carried at fair value:    
Amortized Cost 167,000 169,000
Fair Value 137,700 136,500
Mortgage-backed securities    
Available-for-sale debt securities    
Amortized Cost 83,004 78,619
Gross Unrealized Gains 192 175
Gross Unrealized Losses (2,163) (2,387)
Fair Value 81,033 76,407
Debt securities carried at fair value:    
Fair Value 81,293  
Agency    
Available-for-sale debt securities    
Amortized Cost 31,974 32,781
Gross Unrealized Gains 42 35
Gross Unrealized Losses (1,448) (1,614)
Fair Value 30,568 31,202
Debt securities carried at fair value:    
Fair Value 30,568  
Held-to-maturity debt securities    
Amortized Cost 422,326 430,135
Gross Unrealized Gains 0 0
Gross Unrealized Losses (79,614) (88,458)
Fair Value 342,712 341,677
Agency-collateralized mortgage obligations    
Available-for-sale debt securities    
Amortized Cost 20,718 19,519
Gross Unrealized Gains 13 17
Gross Unrealized Losses (198) (218)
Fair Value 20,533 19,318
Debt securities carried at fair value:    
Fair Value 20,533  
Commercial    
Available-for-sale debt securities    
Amortized Cost 30,030 26,032
Gross Unrealized Gains 85 73
Gross Unrealized Losses (465) (503)
Fair Value 29,650 25,602
Debt securities carried at fair value:    
Fair Value 29,662  
Non-agency residential    
Available-for-sale debt securities    
Amortized Cost 282 287
Gross Unrealized Gains 52 50
Gross Unrealized Losses (52) (52)
Fair Value 282 $ 285
Debt securities carried at fair value:    
Fair Value $ 530  
Non-agency residential | Prime    
Debt securities:    
Available-for-sale securities, percent held by rating 26.00% 25.00%
Non-agency residential | Subprime    
Debt securities:    
Available-for-sale securities, percent held by rating 74.00% 75.00%
U.S. Treasury and government agencies    
Available-for-sale debt securities    
Amortized Cost $ 260,631 $ 235,582
Gross Unrealized Gains 213 150
Gross Unrealized Losses (999) (1,153)
Fair Value 259,845 234,579
Debt securities carried at fair value:    
Fair Value 263,334  
Held-to-maturity debt securities    
Amortized Cost 121,708 121,696
Gross Unrealized Gains 0 0
Gross Unrealized Losses (15,826) (18,661)
Fair Value 105,882 103,035
Non-U.S. securities    
Available-for-sale debt securities    
Amortized Cost 23,956 22,453
Gross Unrealized Gains 26 20
Gross Unrealized Losses (18) (42)
Fair Value 23,964 22,431
Debt securities carried at fair value:    
Fair Value 32,522  
Other taxable securities    
Available-for-sale debt securities    
Amortized Cost 3,032 4,646
Gross Unrealized Gains 3 2
Gross Unrealized Losses (38) (45)
Fair Value 2,997 4,603
Debt securities carried at fair value:    
Fair Value 3,000  
Held-to-maturity debt securities    
Amortized Cost 6,722 6,882
Gross Unrealized Gains 2 1
Gross Unrealized Losses (910) (1,047)
Fair Value 5,814 5,836
Tax-exempt securities    
Available-for-sale debt securities    
Amortized Cost 8,601 8,628
Gross Unrealized Gains 15 17
Gross Unrealized Losses (206) (233)
Fair Value 8,410 $ 8,412
Debt securities carried at fair value:    
Fair Value $ 8,410