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Accumulated Other Comprehensive Income (Loss) (Tables)
12 Months Ended
Dec. 31, 2019
Equity [Abstract]  
Accumulated other comprehensive income (loss)
The following table shows the change in components for accumulated other comprehensive loss (in millions):



 Foreign Currency Translation Gain (Loss)Unrealized Loss on Derivative InstrumentsPost-Retirement Benefit Plans Total
Balance at December 31, 2017
$(10.5)$(15.5)$(83.6)$(109.6)
Change in component(47.5)12.9 2.1 (32.5)
Reclassification adjustments into earnings (1)— (7.4)9.9 2.5 
Income tax effect— (1.0)(4.6)(5.6)
     Reclassification adjustments into retained earnings (2)
— (3.0)(16.4)(19.4)
Balance at December 31, 2018
(58.0)(14.0)(92.6)(164.6)
Change in component(10.1)17.4 1.5 8.8 
Reclassification adjustments into earnings (1)— (11.8)7.6 (4.2)
Income tax effect— (1.7)(1.9)(3.6)
Balance at December 31, 2019
(68.1)(10.1)(85.4)(163.6)
Change in component24.4 (20.4)(3.8)0.2 
Reclassification adjustments into earnings (1)— 14.9 12.1 27.0 
Income tax effect— 1.0 (2.1)(1.1)
Balance at December 31, 2020
$(43.7)$(14.6)$(79.2)$(137.5)
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(1) See "Note 10. Fair Value Disclosure" and "Note 12. Pension and Other Post-Retirement Benefits" for impacts of the reclassification adjustments on the statement of comprehensive income.
(2)     In 2018, we adopted ASU 2018-02, Income Statement Reporting - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which permits reclassification of certain stranded tax effects related to the Tax Act from Accumulated Other Comprehensive Income to Retained Earnings.