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v3.22.2.2

Investment Securities (Summary) (Details) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2022 | Dec. 31, 2021
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Securities available for sale debt securities, amortized cost | $ 50,589.0 | $ 130,798.0
Securities available for sale debt securities, unrealized gains | 236.0 | 1,566.0
Securities available for sale debt securities, unrealized losses | (5,027.0) | (828.0)
Securities available for sale debt securities, fair value | 45,798.0 | 131,536.0
Held to maturity securities, amortized cost | 90,653.0 | 1,426.0
Held-to-maturity securities, unrealized gains | 3.0 | 103.0
Held-to-maturity securities, unrealized losses | (5,468.0) | (7.0)
Held-to-maturity securities, fair value | 85,188.0 | 1,522.0
Accrued interest, held-to-maturity | 211.0 | 5.0
Accrued interest, available-for-sale | 140.0 | 322.0
Debt securities, available-for-sale, allowance for credit loss | 133.0 | 130.0
Debt securities, held-to-maturity, allowance for credit loss | 7.0 | $ 3.0
Net unrealized losses, related to securities transferred at fair value to held to maturity at a point in time | $ 5,400.0 |
Fitch, AAA OR AA Rating | Credit Concentration Risk | Held-to-maturity Securities |  |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Concentration risk, percentage | 99.00% | 86.00%
U.S. Treasury and government agencies |  |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Securities available for sale debt securities, amortized cost | $ 11,093.0 | $ 46,210.0
Securities available for sale debt securities, unrealized gains | 9.0 | 324.0
Securities available for sale debt securities, unrealized losses | (884.0) | (370.0)
Securities available for sale debt securities, fair value | 10,218.0 | 46,164.0
Held to maturity securities, amortized cost | 36,120.0 | 814.0
Held-to-maturity securities, unrealized gains | 1.0 | 76.0
Held-to-maturity securities, unrealized losses | (1,717.0) |
Held-to-maturity securities, fair value | 34,404.0 | 890.0
Residential mortgage-backed | Mortgage-backed Securities Agency |  |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Securities available for sale debt securities, amortized cost | 31,993.0 | 67,326.0
Securities available for sale debt securities, unrealized gains | 4.0 | 695.0
Securities available for sale debt securities, unrealized losses | (3,609.0) | (389.0)
Securities available for sale debt securities, fair value | 28,388.0 | 67,632.0
Held to maturity securities, amortized cost | 42,152.0 |
Held-to-maturity securities, unrealized gains |  |
Held-to-maturity securities, unrealized losses | (3,391.0) |
Held-to-maturity securities, fair value | 38,761.0 |
Residential mortgage-backed | Mortgage-backed Securities Non-agency |  |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Securities available for sale debt securities, amortized cost | 725.0 | 927.0
Securities available for sale debt securities, unrealized gains | 151.0 | 231.0
Securities available for sale debt securities, unrealized losses | (5.0) |
Securities available for sale debt securities, fair value | 871.0 | 1,158.0
Held to maturity securities, amortized cost | 281.0 |
Held-to-maturity securities, unrealized losses | (23.0) |
Held-to-maturity securities, fair value | 258.0 |
Commercial mortgage-backed | Mortgage-backed Securities Agency |  |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Securities available for sale debt securities, amortized cost | 1,930.0 | 1,740.0
Securities available for sale debt securities, unrealized gains | 1.0 | 39.0
Securities available for sale debt securities, unrealized losses | (176.0) | (6.0)
Securities available for sale debt securities, fair value | 1,755.0 | 1,773.0
Held to maturity securities, amortized cost | 663.0 |
Held-to-maturity securities, unrealized losses | (27.0) |
Held-to-maturity securities, fair value | 636.0 |
Commercial mortgage-backed | Mortgage-backed Securities Non-agency |  |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Securities available for sale debt securities, amortized cost | 1,363.0 | 3,423.0
Securities available for sale debt securities, unrealized gains | 1.0 | 31.0
Securities available for sale debt securities, unrealized losses | (61.0) | (18.0)
Securities available for sale debt securities, fair value | 1,303.0 | 3,436.0
Held to maturity securities, amortized cost | 1,746.0 |
Held-to-maturity securities, unrealized gains | 2.0 |
Held-to-maturity securities, unrealized losses | (25.0) |
Held-to-maturity securities, fair value | 1,723.0 |
Asset-backed |  |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Securities available for sale debt securities, amortized cost | 106.0 | 6,380.0
Securities available for sale debt securities, unrealized gains | 27.0 | 60.0
Securities available for sale debt securities, unrealized losses | (1.0) | (31.0)
Securities available for sale debt securities, fair value | 132.0 | 6,409.0
Held to maturity securities, amortized cost | 6,565.0 |
Held-to-maturity securities, unrealized gains |  |
Held-to-maturity securities, unrealized losses | (161.0) |
Held-to-maturity securities, fair value | 6,404.0 |
Other |  |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Securities available for sale debt securities, amortized cost | 3,379.0 | 4,792.0
Securities available for sale debt securities, unrealized gains | 43.0 | 186.0
Securities available for sale debt securities, unrealized losses | (291.0) | (14.0)
Securities available for sale debt securities, fair value | 3,131.0 | 4,964.0
Held to maturity securities, amortized cost | 3,126.0 | 612.0
Held-to-maturity securities, unrealized gains |  | 27.0
Held-to-maturity securities, unrealized losses | (124.0) | (7.0)
Held-to-maturity securities, fair value | $ 3,002.0 | $ 632.0

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