Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.1
INVESTMENT SECURITIES AND OTHER SECURITIES INVESTMENT SECURITIES AND OTHER SECURITIES - Continuous Unrealized Loss Position (Details) - USD ($)
$ in Millions
Mar. 31, 2019
Dec. 31, 2018
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 676 $ 2,254
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 8 35
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 9,513 9,679
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 200 324
Debt Securities, Available-for-sale, Unrealized Loss Position 10,189 11,933
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 208 359
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 6 141
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 2
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 7,079 7,711
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (172) (279)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value 7,085 7,852
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss 172 281
Collateralized Mortgage Obligations [Member]    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 27 425
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 3
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 5,287 5,943
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 108 198
Debt Securities, Available-for-sale, Unrealized Loss Position 5,314 6,368
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 108 201
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 0 12
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 1,283 2,004
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (23) (47)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value 1,283 2,016
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss 23 47
Residential Mortgage Backed Securities [Member]    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 0 259
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 6
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 537 319
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 5 9
Debt Securities, Available-for-sale, Unrealized Loss Position 537 578
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 5 15
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 0 16
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 1,464 1,457
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (15) (42)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value 1,464 1,473
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss 15 42
Commercial Mortgage Backed Securities [Member]    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 0 10
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 1,553 1,573
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 53 58
Debt Securities, Available-for-sale, Unrealized Loss Position 1,553 1,583
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 53 58
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 0 0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 4,049 4,041
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (130) (186)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value 4,049 4,041
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss 130 186
Other Federal Agencies [Member]    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 0 0
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 116 124
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 1 2
Debt Securities, Available-for-sale, Unrealized Loss Position 116 124
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 1 2
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 6 113
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 2
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 279 205
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (4) (4)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value 285 318
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss 4 6
US Government-sponsored Enterprises Debt Securities [Member]    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 27 694
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 9
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 7,493 7,959
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 167 267
Debt Securities, Available-for-sale, Unrealized Loss Position 7,520 8,653
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 167 276
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 6 141
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 2
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 7,075 7,707
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (172) (279)
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value 7,081 7,848
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss 172 281
Municipal securities    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months 593 1,425
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 7 24
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 1,867 1,602
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 31 54
Debt Securities, Available-for-sale, Unrealized Loss Position 2,460 3,027
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 38 78
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 0 0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 0
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 4 4
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0 0
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value 4 4
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss 0 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 56 95
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 1 2
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 153 117
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 2 2
Debt Securities, Available-for-sale, Unrealized Loss Position 209 212
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss $ 3 4
Corporate Debt Securities [Member]    
Investment securities and other securities disclosure [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months   40
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss   0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer   1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss   (1)
Debt Securities, Available-for-sale, Unrealized Loss Position   41
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss   $ (1)