v3.26.1
INVESTMENT SECURITIES AND OTHER SECURITIES - Schedule of Amortized Cost, Fair Value, and Gross Unrealized Gains and Losses (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Available-for-sale securities:    
Amortized Cost $ 38,053 $ 28,510
Unrealized Gross Gains 26 66
Unrealized Gross Losses (2,522) (2,444)
Fair Value 35,557 26,132
Held-to-maturity securities:    
Amortized Cost 14,768 15,258
Unrealized Gross Gains 10 25
Unrealized Gross Losses (1,688) (1,647)
Fair Value 13,090 13,636
Other securities, at cost:    
Amortized Cost 1,281 994
Unrealized Gross Gains 0 0
Unrealized Gross Losses 0 0
Fair Value 1,281 994
Accrued interest receivable on AFS securities 126 106
Accrued interest receivable on HTM securities 39 44
Cumulative Amount of Fair Value Hedging Adjustment To Hedged Items 196 177
U.S. Treasury    
Available-for-sale securities:    
Amortized Cost 8,484 4,590
Unrealized Gross Gains 9 45
Unrealized Gross Losses (7) 0
Fair Value 8,486 4,635
Held-to-maturity securities:    
Amortized Cost 2,158 2,349
Unrealized Gross Gains 8 19
Unrealized Gross Losses (3) 0
Fair Value 2,163 2,368
US Treasury and Government    
Available-for-sale securities:    
Amortized Cost 33,122 23,758
Unrealized Gross Gains 22 57
Unrealized Gross Losses (2,389) (2,333)
Fair Value 30,755 21,482
Held-to-maturity securities:    
Amortized Cost 14,767 15,257
Unrealized Gross Gains 10 25
Unrealized Gross Losses (1,688) (1,647)
Fair Value 13,089 13,635
Residential MBS    
Available-for-sale securities:    
Amortized Cost 13,978 11,031
Unrealized Gross Gains 2 3
Unrealized Gross Losses (1,383) (1,365)
Fair Value 12,597 9,669
Held-to-maturity securities:    
Amortized Cost 7,546 7,718
Unrealized Gross Gains 0 1
Unrealized Gross Losses (947) (941)
Fair Value 6,599 6,778
Residential CMO    
Available-for-sale securities:    
Amortized Cost 6,775 5,496
Unrealized Gross Gains 10 9
Unrealized Gross Losses (337) (308)
Fair Value 6,448 5,197
Held-to-maturity securities:    
Amortized Cost 3,772 3,865
Unrealized Gross Gains 2 5
Unrealized Gross Losses (549) (520)
Fair Value 3,225 3,350
Commercial MBS    
Available-for-sale securities:    
Amortized Cost 3,365 2,488
Unrealized Gross Gains 0 0
Unrealized Gross Losses (660) (657)
Fair Value 2,705 1,831
Held-to-maturity securities:    
Amortized Cost 1,249 1,278
Unrealized Gross Gains 0 0
Unrealized Gross Losses (187) (184)
Fair Value 1,062 1,094
Other agencies    
Available-for-sale securities:    
Amortized Cost 520 153
Unrealized Gross Gains 1 0
Unrealized Gross Losses (2) (3)
Fair Value 519 150
Held-to-maturity securities:    
Amortized Cost 42 47
Unrealized Gross Gains 0 0
Unrealized Gross Losses (2) (2)
Fair Value 40 45
Municipal securities    
Available-for-sale securities:    
Amortized Cost 4,436 4,215
Unrealized Gross Gains 4 9
Unrealized Gross Losses (102) (81)
Fair Value 4,338 4,143
Held-to-maturity securities:    
Amortized Cost 1 1
Unrealized Gross Gains 0 0
Unrealized Gross Losses 0 0
Fair Value 1 1
Corporate debt    
Available-for-sale securities:    
Amortized Cost 193 193
Unrealized Gross Gains 0 0
Unrealized Gross Losses (17) (15)
Fair Value 176 178
Asset-backed securities    
Available-for-sale securities:    
Amortized Cost 189 229
Unrealized Gross Gains 0 0
Unrealized Gross Losses (7) (8)
Fair Value 182 221
Private-label CMO    
Available-for-sale securities:    
Amortized Cost 103 105
Unrealized Gross Gains 0 0
Unrealized Gross Losses (7) (7)
Fair Value 96 98
Other securities/sovereign debt    
Available-for-sale securities:    
Amortized Cost 10 10
Unrealized Gross Gains 0 0
Unrealized Gross Losses 0 0
Fair Value 10 10
Non-marketable equity securities: | FRB stock    
Other securities, at cost:    
Amortized Cost 719 616
Unrealized Gross Gains 0 0
Unrealized Gross Losses 0 0
Fair Value 719 616
Non-marketable equity securities: | FHLB stock    
Other securities, at cost:    
Amortized Cost 436 288
Unrealized Gross Gains 0 0
Unrealized Gross Losses 0 0
Fair Value 436 288
Other non-marketable equity securities    
Other securities, at cost:    
Amortized Cost 62 48
Unrealized Gross Gains 0 0
Unrealized Gross Losses 0 0
Fair Value 62 48
Mutual funds    
Other securities, at cost:    
Amortized Cost 29 30
Unrealized Gross Gains 0 0
Unrealized Gross Losses 0 0
Fair Value 29 30
Equity securities    
Other securities, at cost:    
Amortized Cost 35 12
Unrealized Gross Gains 0
Unrealized Gross Losses 0 0
Fair Value $ 35 $ 12