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
Mar. 31, 2023
Dec. 31, 2022
Available-for-sale securities:    
Less than 12 months, fair value $ 3,511 $ 8,944
Less than 12 months, gross unrealized losses (248) (1,062)
12 months or longer, fair value 19,419 13,763
12 months or longer, gross unrealized losses (3,197) (2,756)
Total, fair value 22,930 22,707
Total, gross unrealized losses (3,445) (3,818)
Held-to-maturity securities:    
Less than 12 months, fair value 1,762 7,178
Less than 12 months, gross unrealized losses (79) (863)
12 months or longer, fair value 12,658 7,241
12 months or longer, gross unrealized losses (1,967) (1,439)
Total held-to-maturity securities 14,420 14,419
Total, gross unrealized losses (2,046) (2,302)
Residential CMO    
Available-for-sale securities:    
Less than 12 months, fair value 1,241 2,096
Less than 12 months, gross unrealized losses (71) (224)
12 months or longer, fair value 1,808 818
12 months or longer, gross unrealized losses (298) (198)
Total, fair value 3,049 2,914
Total, gross unrealized losses (369) (422)
Held-to-maturity securities:    
Less than 12 months, fair value 254 1,702
Less than 12 months, gross unrealized losses (5) (238)
12 months or longer, fair value 3,830 2,283
12 months or longer, gross unrealized losses (629) (476)
Total held-to-maturity securities 4,084 3,985
Total, gross unrealized losses (634) (714)
Residential MBS    
Available-for-sale securities:    
Less than 12 months, fair value 555 2,455
Less than 12 months, gross unrealized losses (31) (286)
12 months or longer, fair value 11,285 9,490
12 months or longer, gross unrealized losses (1,839) (1,804)
Total, fair value 11,840 11,945
Total, gross unrealized losses (1,870) (2,090)
Held-to-maturity securities:    
Less than 12 months, fair value 1,456 4,151
Less than 12 months, gross unrealized losses (72) (462)
12 months or longer, fair value 7,341 4,711
12 months or longer, gross unrealized losses (1,127) (913)
Total held-to-maturity securities 8,797 8,862
Total, gross unrealized losses (1,199) (1,375)
Commercial MBS    
Available-for-sale securities:    
Less than 12 months, fair value 526 1,090
Less than 12 months, gross unrealized losses (77) (249)
12 months or longer, fair value 1,441 863
12 months or longer, gross unrealized losses (511) (363)
Total, fair value 1,967 1,953
Total, gross unrealized losses (588) (612)
Held-to-maturity securities:    
Less than 12 months, fair value 52 1,201
Less than 12 months, gross unrealized losses (2) (154)
12 months or longer, fair value 1,371 247
12 months or longer, gross unrealized losses (205) (50)
Total held-to-maturity securities 1,423 1,448
Total, gross unrealized losses (207) (204)
Other agencies    
Available-for-sale securities:    
Less than 12 months, fair value 22 40
Less than 12 months, gross unrealized losses 0 (1)
12 months or longer, fair value 71 56
12 months or longer, gross unrealized losses (8) (8)
Total, fair value 93 96
Total, gross unrealized losses (8) (9)
Held-to-maturity securities:    
Less than 12 months, fair value 0 124
Less than 12 months, gross unrealized losses 0 (9)
12 months or longer, fair value 116 0
12 months or longer, gross unrealized losses (6) 0
Total held-to-maturity securities 116 124
Total, gross unrealized losses (6) (9)
Total U.S. Treasury, federal agency, and other agency securities    
Available-for-sale securities:    
Less than 12 months, fair value 2,344 5,681
Less than 12 months, gross unrealized losses (179) (760)
12 months or longer, fair value 14,605 11,227
12 months or longer, gross unrealized losses (2,656) (2,373)
Total, fair value 16,949 16,908
Total, gross unrealized losses (2,835) (3,133)
Held-to-maturity securities:    
Less than 12 months, fair value 1,762 7,178
Less than 12 months, gross unrealized losses (79) (863)
12 months or longer, fair value 12,658 7,241
12 months or longer, gross unrealized losses (1,967) (1,439)
Total held-to-maturity securities 14,420 14,419
Total, gross unrealized losses (2,046) (2,302)
Municipal securities    
Available-for-sale securities:    
Less than 12 months, fair value 1,019 2,298
Less than 12 months, gross unrealized losses (60) (174)
12 months or longer, fair value 2,212 807
12 months or longer, gross unrealized losses (174) (64)
Total, fair value 3,231 3,105
Total, gross unrealized losses (234) (238)
Private-label CMO    
Available-for-sale securities:    
Less than 12 months, fair value 37 64
Less than 12 months, gross unrealized losses (3) (13)
12 months or longer, fair value 72 43
12 months or longer, gross unrealized losses (10) (5)
Total, fair value 109 107
Total, gross unrealized losses (13) (18)
Asset-backed securities    
Available-for-sale securities:    
Less than 12 months, fair value 36 174
Less than 12 months, gross unrealized losses (2) (10)
12 months or longer, fair value 340 199
12 months or longer, gross unrealized losses (36) (34)
Total, fair value 376 373
Total, gross unrealized losses (38) (44)
Corporate debt    
Available-for-sale securities:    
Less than 12 months, fair value 75 727
Less than 12 months, gross unrealized losses (4) (105)
12 months or longer, fair value 2,190 1,487
12 months or longer, gross unrealized losses (321) (280)
Total, fair value 2,265 2,214
Total, gross unrealized losses $ (325) $ (385)