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v3.23.3

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | Dec. 31, 2021
Stockholders' Equity Attributable to Parent | $ 2,361.3 |  | $ 2,361.3 |  |  | $ 2,670.6 |  |
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax |  |  |  |  | $ (38.0) | (37.2) |  | $ (52.1)
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax |  |  |  |  | 2.7 | 2.8 |  | (1.9)
AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax | 241.1 | $ (849.7) | 241.1 | $ (849.7) | 194.4 |  | $ 11.4 |
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member] |  |  |  |  |  |  |  |
Stockholders' Equity Attributable to Parent | (3.4) | (4.7) | (3.4) | (4.7) | (2.3) | (2.2) | (4.1) | (3.7)
OCI, before Reclassifications, Net of Tax, Attributable to Parent | (0.9) | (0.6) | 0.5 | (1.0) |  |  |  |
Reclassification from AOCI, Current Period, Tax | 0.1 | 0.0 | 0.5 | 0.0 |  |  |  |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | (0.2) | 0.0 | (1.7) | 0.0 |  |  |  |
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent | 0.8 | 0.2 | 0.4 | 0.3 |  |  |  |
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | (1.1) | (0.6) | (1.2) | (1.0) |  |  |  |
Accumulated Other Comprehensive Loss |  |  |  |  |  |  |  |
Stockholders' Equity Attributable to Parent | (473.4) | (573.8) | (473.4) | (573.8) | (480.8) | (514.9) | (509.4) | (401.6)
OCI, before Reclassifications, Net of Tax, Attributable to Parent | (46.4) | (48.3) | (16.3) | (154.8) |  |  |  |
Reclassification from AOCI, Current Period, Tax | (14.2) |  | (15.3) | 4.5 |  |  |  |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | 53.8 | (16.1) | 57.8 | (17.4) |  |  |  |
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent | (2.5) | 17.2 | (10.8) | 45.8 |  |  |  |
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | 7.4 | (64.4) | 41.5 | (172.2) |  |  |  |
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |  |  |  |  |  |
Stockholders' Equity Attributable to Parent | 10.5 | (52.3) | 10.5 | (52.3) |  |  | 52.2 |
OCI, before Reclassifications, Net of Tax, Attributable to Parent | (5.4) | 0.0 |  | 0.0 |  |  |  |
Reclassification from AOCI, Current Period, Tax | (14.4) | 0.0 | (14.1) | 0.0 |  |  |  |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | 53.9 | (0.1) | 53.1 | (0.2) |  |  |  |
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent | (12.6) | 0.1 | (12.6) | 0.1 |  |  |  |
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | 48.5 | (0.1) | 47.7 | (0.2) |  |  |  |
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] |  |  |  |  |  |  |  |
Stockholders' Equity Attributable to Parent | 2.7 | 2.8 | 2.7 | 2.8 |  |  | 2.8 |
OCI, before Reclassifications, Net of Tax, Attributable to Parent | 0.0 | 0.0 | 0.0 | 4.7 |  |  |  |
Reclassification from AOCI, Current Period, Tax | 0.0 | 0.0 | 0.0 | 0.0 |  |  |  |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | 0.0 | 0.0 | (0.1) | 0.0 |  |  |  |
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent | 0.0 | 0.0 | 0.0 | (1.2) |  |  |  |
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | 0.0 | 0.0 | (0.1) | 4.7 |  |  |  |
AOCI, Gain (Loss), Debt Securities, Available-for-sale, with Allowance for Credit Loss, Parent |  |  |  |  |  |  |  |
Stockholders' Equity Attributable to Parent | (896.2) | (792.4) | (896.2) | (792.4) | $ (637.6) | $ (719.4) | $ (467.3) | $ 505.8
OCI, before Reclassifications, Net of Tax, Attributable to Parent | (258.7) | (309.1) | (183.3) | (1,281.0) |  |  |  |
Reclassification from AOCI, Current Period, Tax | 0.1 |  | (1.7) | 4.5 |  |  |  |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | 0.1 | (16.0) | 6.5 | (17.2) |  |  |  |
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent | 67.5 | 86.4 | 47.1 | 345.0 |  |  |  |
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | (258.6) | (325.1) | (176.8) | (1,298.2) |  |  |  |
AOCI, Liability for Future Policy Benefit, Parent |  |  |  |  |  |  |  |
Stockholders' Equity Attributable to Parent | 413.0 | 272.8 | 413.0 | 272.8 |  |  |  |
OCI, before Reclassifications, Net of Tax, Attributable to Parent | 218.6 | 261.4 | 171.9 | 1,122.5 |  |  |  |
Reclassification from AOCI, Current Period, Tax | 0.0 | 0.0 | 0.0 | 0.0 |  |  |  |
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | 0.0 | 0.0 |  | 0.0 |  |  |  |
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent | (58.2) | (69.5) | (45.7) | (298.4) |  |  |  |
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | $ 218.6 | $ 261.4 | $ 171.9 | $ 1,122.5 |  |  |  |

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