Quarterly report pursuant to Section 13 or 15(d)

INVESTMENT SECURITIES AND OTHER SECURITIES - Continuous Unrealized Loss Position (Details)

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INVESTMENT SECURITIES AND OTHER SECURITIES - Continuous Unrealized Loss Position (Details) - USD ($)
$ in Millions
Sep. 30, 2024
Dec. 31, 2023
Available-for-sale securities:    
Less than 12 months, fair value $ 1,389 $ 1,375
Less than 12 months, gross unrealized losses (9) (28)
12 months or longer, fair value 20,311 20,381
12 months or longer, gross unrealized losses (2,793) (3,317)
Total, fair value 21,700 21,756
Total, gross unrealized losses (2,802) (3,345)
Held-to-maturity securities:    
Less than 12 months, fair value 554 156
Less than 12 months, gross unrealized losses (1) (1)
12 months or longer, fair value 12,325 13,030
12 months or longer, gross unrealized losses (1,750) (2,038)
Total held-to-maturity securities 12,879 13,186
Total, gross unrealized losses (1,751) (2,039)
U.S. Treasury    
Available-for-sale securities:    
Less than 12 months, fair value 885  
Less than 12 months, gross unrealized losses (2)  
12 months or longer, fair value 0  
12 months or longer, gross unrealized losses 0  
Total, fair value 885  
Total, gross unrealized losses (2)  
Held-to-maturity securities:    
Less than 12 months, fair value 554  
Less than 12 months, gross unrealized losses (1)  
12 months or longer, fair value 0  
12 months or longer, gross unrealized losses 0  
Total held-to-maturity securities 554  
Total, gross unrealized losses (1)  
Total U.S. Treasury, federal agency, and other agency securities    
Available-for-sale securities:    
Less than 12 months, fair value 885 750
Less than 12 months, gross unrealized losses (2) (9)
12 months or longer, fair value 15,340 15,462
12 months or longer, gross unrealized losses (2,493) (2,890)
Total, fair value 16,225 16,212
Total, gross unrealized losses (2,495) (2,899)
Held-to-maturity securities:    
Less than 12 months, fair value 554 156
Less than 12 months, gross unrealized losses (1) (1)
12 months or longer, fair value 12,324 13,030
12 months or longer, gross unrealized losses (1,749) (2,038)
Total held-to-maturity securities 12,878 13,186
Total, gross unrealized losses (1,750) (2,039)
Residential CMO    
Available-for-sale securities:    
Less than 12 months, fair value 0 543
Less than 12 months, gross unrealized losses 0 (7)
12 months or longer, fair value 2,977 2,641
12 months or longer, gross unrealized losses (341) (401)
Total, fair value 2,977 3,184
Total, gross unrealized losses (341) (408)
Held-to-maturity securities:    
Less than 12 months, fair value 0 156
Less than 12 months, gross unrealized losses 0 (1)
12 months or longer, fair value 3,366 3,542
12 months or longer, gross unrealized losses (570) (663)
Total held-to-maturity securities 3,366 3,698
Total, gross unrealized losses (570) (664)
Residential MBS    
Available-for-sale securities:    
Less than 12 months, fair value 0 207
Less than 12 months, gross unrealized losses 0 (2)
12 months or longer, fair value 10,422 10,913
12 months or longer, gross unrealized losses (1,497) (1,774)
Total, fair value 10,422 11,120
Total, gross unrealized losses (1,497) (1,776)
Held-to-maturity securities:    
Less than 12 months, fair value 0 0
Less than 12 months, gross unrealized losses 0 0
12 months or longer, fair value 7,646 8,108
12 months or longer, gross unrealized losses (983) (1,145)
Total held-to-maturity securities 7,646 8,108
Total, gross unrealized losses (983) (1,145)
Commercial MBS    
Available-for-sale securities:    
Less than 12 months, fair value 0 0
Less than 12 months, gross unrealized losses 0 0
12 months or longer, fair value 1,870 1,827
12 months or longer, gross unrealized losses (651) (709)
Total, fair value 1,870 1,827
Total, gross unrealized losses (651) (709)
Held-to-maturity securities:    
Less than 12 months, fair value 0 0
Less than 12 months, gross unrealized losses 0 0
12 months or longer, fair value 1,236 1,285
12 months or longer, gross unrealized losses (192) (224)
Total held-to-maturity securities 1,236 1,285
Total, gross unrealized losses (192) (224)
Other agencies    
Available-for-sale securities:    
Less than 12 months, fair value 0 0
Less than 12 months, gross unrealized losses 0 0
12 months or longer, fair value 71 81
12 months or longer, gross unrealized losses (4) (6)
Total, fair value 71 81
Total, gross unrealized losses (4) (6)
Held-to-maturity securities:    
Less than 12 months, fair value 0 0
Less than 12 months, gross unrealized losses 0 0
12 months or longer, fair value 76 95
12 months or longer, gross unrealized losses (4) (6)
Total held-to-maturity securities 76 95
Total, gross unrealized losses (4) (6)
Municipal securities    
Available-for-sale securities:    
Less than 12 months, fair value 504 625
Less than 12 months, gross unrealized losses (7) (19)
12 months or longer, fair value 2,536 2,496
12 months or longer, gross unrealized losses (105) (146)
Total, fair value 3,040 3,121
Total, gross unrealized losses (112) (165)
Held-to-maturity securities:    
Less than 12 months, fair value 0  
Less than 12 months, gross unrealized losses 0  
12 months or longer, fair value 1  
12 months or longer, gross unrealized losses (1)  
Total held-to-maturity securities 1  
Total, gross unrealized losses (1)  
Private-label CMO    
Available-for-sale securities:    
Less than 12 months, fair value 0 0
Less than 12 months, gross unrealized losses 0 0
12 months or longer, fair value 92 99
12 months or longer, gross unrealized losses (8) (12)
Total, fair value 92 99
Total, gross unrealized losses (8) (12)
Asset-backed securities    
Available-for-sale securities:    
Less than 12 months, fair value 0 0
Less than 12 months, gross unrealized losses 0 0
12 months or longer, fair value 272 281
12 months or longer, gross unrealized losses (17) (31)
Total, fair value 272 281
Total, gross unrealized losses (17) (31)
Corporate debt    
Available-for-sale securities:    
Less than 12 months, fair value 0 0
Less than 12 months, gross unrealized losses 0 0
12 months or longer, fair value 2,071 2,043
12 months or longer, gross unrealized losses (170) (238)
Total, fair value 2,071 2,043
Total, gross unrealized losses $ (170) $ (238)