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Income Taxes - Valuation Allowances (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Beginning of year | $ 141.5 | $ 128.1 | $ 118.3
Expiring tax credits | (0.2) | (0.7) | (0.4)
Acquisitions and dispositions | 0.0 | (0.8) | 4.9
Changes in judgment about deferred tax assets(a) | (46.1) | 8.8 | (2.4)
Income from continuing operations | 173.5 | 103.1 | 16.8
Other comprehensive income (loss) | 201.0 | 89.5 | (16.2)
Foreign currency exchange effects | (2.6) | (1.1) | (0.1)
End of year | 77.3 | 141.5 | 128.1
Valuation Allowance of Deferred Tax Assets |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Income from continuing operations | (1.4) | 7.4 | 8.1
Other comprehensive income (loss) | $ (13.9) | $ (0.2) | $ (0.3)

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- Definition The amount of increase or decrease in valuation allowances attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency. + References No definition available. + Details
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