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Accumulated Other Comprehensive Income (Loss) | 12 Months Ended
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Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Comprehensive Income (Loss) Note [Text Block] | ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The following tables present changes in the accumulated balances for each component of other comprehensive income (loss), including current period other comprehensive income and reclassifications out of accumulated other comprehensive income (loss):
(in millions) | Investment Securities |  | Defined Benefit Plans |  | Derivative Investments |  | Foreign Currency Translation |  | Total
Balance at December 31, 2021 | $ | 1.1 |  |  | $ | (34.8) |  |  | $ | 66.1 |  |  | $ | 21.1 |  |  | $ | 53.5 |
Other comprehensive income before reclassifications and income tax benefit (expense) | (2.7) |  |  | 14.9 |  |  | — |  |  | (195.4) |  |  | (183.2) |
Amounts reclassified from accumulated other comprehensive income | — |  |  | 1.2 |  |  | (1.9) |  |  | — |  |  | (0.7) |
Income tax benefit (expense) | 0.7 |  |  | (4.1) |  |  | 0.5 |  |  | — |  |  | (2.9) |
Net current period other comprehensive income | (2.0) |  |  | 12.0 |  |  | (1.4) |  |  | (195.4) |  |  | (186.8) |
Balance at December 31, 2022 | $ | (0.9) |  |  | $ | (22.8) |  |  | $ | 64.7 |  |  | $ | (174.3) |  |  | $ | (133.3) |
(in millions) | Investment Securities |  | Defined Benefit Plans |  | Derivative Investments |  | Foreign Currency Translation |  | Total
Balance at December 31, 2020 | $ | 1.6 |  |  | $ | (57.1) |  |  | $ | 67.0 |  |  | $ | 123.4 |  |  | $ | 134.9 |
Other comprehensive income before reclassifications and income tax benefit (expense) | (1.0) |  |  | 25.5 |  |  | — |  |  | (62.0) |  |  | (37.5) |
Amounts reclassified from accumulated other comprehensive income | 0.3 |  |  | 4.4 |  |  | (1.2) |  |  | (40.3) |  |  | (36.8) |
Income tax benefit (expense) | 0.2 |  |  | (7.6) |  |  | 0.3 |  |  | — |  |  | (7.1) |
Net current period other comprehensive income | (0.5) |  |  | 22.3 |  |  | (0.9) |  |  | (102.3) |  |  | (81.4) |
Balance at December 31, 2021 | $ | 1.1 |  |  | $ | (34.8) |  |  | $ | 66.1 |  |  | $ | 21.1 |  |  | $ | 53.5 |
(in millions) | Investment Securities |  | Defined Benefit Plans |  | Derivative Investments |  | Foreign Currency Translation |  | Total
Balance at December 31, 2019 | $ | 0.8 |  |  | $ | (55.1) |  |  | $ | 69.0 |  |  | $ | (11.3) |  |  | $ | 3.4 |
Other comprehensive income before reclassifications and income tax benefit (expense) | 1.1 |  |  | (7.4) |  |  | — |  |  | 134.3 |  |  | 128.0 |
Amounts reclassified from accumulated other comprehensive income | — |  |  | 4.7 |  |  | (2.7) |  |  | 0.4 |  |  | 2.4 |
Income tax benefit (expense) | (0.3) |  |  | 0.7 |  |  | 0.7 |  |  | — |  |  | 1.1 |
Net current period other comprehensive income | 0.8 |  |  | (2.0) |  |  | (2.0) |  |  | 134.7 |  |  | 131.5 |
Balance at December 31, 2020 | $ | 1.6 |  |  | $ | (57.1) |  |  | $ | 67.0 |  |  | $ | 123.4 |  |  | $ | 134.9 |

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI https://asc.fasb.org/topic&trid=2134417 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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