Annual report pursuant to Section 13 and 15(d)

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

v3.20.4
INVESTMENT SECURITIES AND OTHER SECURITIES - Continuous Unrealized Loss Position (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 2,432 $ 3,323
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (22) (21)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 490 2,041
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (12) (30)
Debt Securities, Available-for-sale, Unrealized Loss Position 2,922 5,364
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (34) (51)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value   678
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss   (1)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value   112
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss   (2)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value   790
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss   (3)
Residential CMO    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 302 1,206
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (5) (10)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 0 519
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 (8)
Debt Securities, Available-for-sale, Unrealized Loss Position 302 1,725
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (5) (18)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value   218
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss   (1)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value   112
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss   (2)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value   330
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss   (3)
Residential MBS    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 1,633 1,169
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (5) (3)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 0 9
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 0
Debt Securities, Available-for-sale, Unrealized Loss Position 1,633 1,178
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (5) (3)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value   317
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss   0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value   0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss   0
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value   317
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss   0
Commercial MBS    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 321 472
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (9) (2)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 0 272
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 (2)
Debt Securities, Available-for-sale, Unrealized Loss Position 321 744
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (9) (4)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value   81
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss   0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value   0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss   0
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value   81
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss   0
Other agencies    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 0 86
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 (1)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 0 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 0
Debt Securities, Available-for-sale, Unrealized Loss Position 0 86
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 0 (1)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value   58
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss   0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value   0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss   0
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value   58
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss   0
Total U.S. Treasury, federal agency and other agency securities    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 2,256 2,933
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (19) (16)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 0 800
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 (10)
Debt Securities, Available-for-sale, Unrealized Loss Position 2,256 3,733
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (19) (26)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value   674
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss   (1)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value   112
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss   (2)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value   786
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss   (3)
Municipal securities    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 110 273
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (3) (4)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 490 1,204
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (12) (19)
Debt Securities, Available-for-sale, Unrealized Loss Position 600 1,477
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (15) (23)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value   4
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss   0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value   0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss   0
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value   4
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss   0
Asset-backed Securities [Member]    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 15 116
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 (1)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 0 37
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 (1)
Debt Securities, Available-for-sale, Unrealized Loss Position 15 153
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 0 (2)
Corporate debt    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 51 1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 0 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 0
Debt Securities, Available-for-sale, Unrealized Loss Position 51 1
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss $ 0 $ 0