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v3.22.2.2

Accumulated Other Comprehensive (Loss) Income - Schedule of Pretax and After-tax Components of Other Comprehensive Income (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
AOCI activity before reclassification, net amount |  |  | $ (747.0) | $ (33.0)
Amounts reclassified from AOCI |  |  | 8.0 | (11.0)
Gross Unrealized | $ (346.0) | $ (13.0) | (973.0) | (57.0)
Income Taxes | 82.0 | 3.0 | 234.0 | 13.0
Other comprehensive loss, net of tax | (264.0) | (10.0) | (739.0) | (44.0)
Defined benefit pension items |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
AOCI activity before reclassification, gross amount | 0.0 | 0.0 | 0.0 | 0.0
AOCI activity before reclassification, tax | 0.0 | 0.0 | 0.0 | 0.0
AOCI activity before reclassification, net amount | 0.0 | 0.0 | 0.0 | 0.0
Amounts reclassified from AOCI |  |  | 7.0 | 16.0
Gross Unrealized | 2.0 | 7.0 | 9.0 | 20.0
Income Taxes | 0.0 | (1.0) | (2.0) | (4.0)
Other comprehensive loss, net of tax | 2.0 | 6.0 | 7.0 | 16.0
Defined benefit pension items | Other noninterest expense |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Reclassification out of AOCI, gross amount | 2.0 | 7.0 | 9.0 | 20.0
Reclassification out of AOCI, tax | 0.0 | (1.0) | (2.0) | (4.0)
Amounts reclassified from AOCI | 2.0 | 6.0 | 7.0 | 16.0
Unrealized loss on securities available for sale |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
AOCI activity before reclassification, gross amount | (348.0) | (11.0) |  |
AOCI activity before reclassification, tax | 82.0 | 3.0 |  |
AOCI activity before reclassification, net amount | (266.0) | (8.0) |  |
Gross Unrealized | (348.0) | (19.0) |  |
Income Taxes | 82.0 | 4.0 |  |
Other comprehensive loss, net of tax | (266.0) | (15.0) |  |
Unrealized loss on securities available for sale | Realized gain on sales of investment securities available for sale, net |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Reclassification out of AOCI, gross amount | 0.0 | (8.0) |  |
Reclassification out of AOCI, tax | 0.0 | 1.0 |  |
Amounts reclassified from AOCI | 0.0 | (7.0) |  |
Unrealized loss on securities available for sale transferred to securities held to maturity |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
AOCI activity before reclassification, gross amount | 0.0 | 0.0 | 0.0 | 0.0
AOCI activity before reclassification, tax | 0.0 | 0.0 | 0.0 | 0.0
AOCI activity before reclassification, net amount | 0.0 | 0.0 | 0.0 | 0.0
Amounts reclassified from AOCI |  |  | 1.0 | (1.0)
Gross Unrealized | 0.0 | (1.0) | 1.0 | (1.0)
Income Taxes | 0.0 | 0.0 | 0.0 | 0.0
Other comprehensive loss, net of tax | 0.0 | (1.0) | 1.0 | (1.0)
Unrealized loss on securities available for sale transferred to securities held to maturity | Interest on investment securities |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Reclassification out of AOCI, gross amount | 0.0 | (1.0) | 1.0 | (1.0)
Reclassification out of AOCI, tax | 0.0 | 0.0 | 0.0 | 0.0
Amounts reclassified from AOCI | $ 0.0 | $ (1.0) | 1.0 | (1.0)
Unrealized (loss) gain on securities available for sale |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
AOCI activity before reclassification, gross amount |  |  | (983.0) | (43.0)
AOCI activity before reclassification, tax |  |  | 236.0 | 10.0
AOCI activity before reclassification, net amount |  |  | (747.0) | (33.0)
Amounts reclassified from AOCI |  |  | 0.0 | (26.0)
Gross Unrealized |  |  | (983.0) | (76.0)
Income Taxes |  |  | 236.0 | 17.0
Other comprehensive loss, net of tax |  |  | (747.0) | (59.0)
Unrealized (loss) gain on securities available for sale | Realized gain on sales of investment securities available for sale, net |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Reclassification out of AOCI, gross amount |  |  | 0.0 | (33.0)
Reclassification out of AOCI, tax |  |  | 0.0 | 7.0
Amounts reclassified from AOCI |  |  | $ 0.0 | $ (26.0)

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