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v3.22.2.2

Stockholders' equity (Tables) | 12 Months Ended
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Dec. 31, 2021
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | Accumulated other comprehensive loss is as follows:
|  | Total |  |  | Translation Adjustments |  |  | Postretirement Plans |
Balance at December 31, 2018 |  | $ | (4,084.8 | ) |  | $ | (896.7 | ) |  | $ | (3,188.1 | )
Other comprehensive income before reclassifications |  |  | 136.8 |  |  |  | 23.8 |  |  |  | 113.0 |
Amounts reclassified from accumulated other comprehensive loss |  |  | (140.6 | ) |  |  | — |  |  |  | (140.6 | )
Current period other comprehensive (loss) income |  |  | (3.8 | ) |  |  | 23.8 |  |  |  | (27.6 | )
Balance at December 31, 2019 |  |  | (4,088.6 | ) |  |  | (872.9 | ) |  |  | (3,215.7 | )
Other comprehensive income before reclassifications |  |  | 489.4 |  |  |  | 78.6 |  |  |  | 410.8 |
Amounts reclassified from accumulated other comprehensive loss |  |  | (340.3 | ) |  |  | (32.3 | ) |  |  | (308.0 | )
Current period other comprehensive income |  |  | 149.1 |  |  |  | 46.3 |  |  |  | 102.8 |
Balance at December 31, 2020 |  |  | (3,939.5 | ) |  |  | (826.6 | ) |  |  | (3,112.9 | )
Other comprehensive income (loss) before reclassifications |  |  | 58.6 |  |  |  | (43.6 | ) |  |  | 102.2 |
Amounts reclassified from accumulated other comprehensive loss |  |  | 616.8 |  |  |  | 4.0 |  |  |  | 612.8 |
Current period other comprehensive income (loss) |  |  | 675.4 |  |  |  | (39.6 | ) |  |  | 715.0 |
Balance at December 31, 2021 |  | $ | (3,264.1 | ) |  | $ | (866.2 | ) |  | $ | (2,397.9 | )
Schedule of Amounts Reclassified Out of Accumulated Other Comprehensive Income (Loss) | Amounts reclassified out of accumulated other comprehensive loss are as follows:
Year ended December 31, |  | 2021 |  |  | 2020 |  |  | 2019 |
Translation Adjustments: |  |  |  |  |  |  |  |  |  |  |  |
Adjustment for substantial completion of liquidation of foreign subsidiaries (i) |  | $ | 4.0 |  |  | $ | (32.3 | ) |  | $ | — |
Postretirement Plans: |  |  |  |  |  |  |  |  |  |  |  |
Amortization of prior service cost (ii) |  |  | (6.2 | ) |  |  | 5.9 |  |  |  | 5.9 |
Amortization of actuarial losses (ii) |  |  | 178.9 |  |  |  | (177.3 | ) |  |  | (149.7 | )
Settlement loss (ii) |  |  | 499.4 |  |  |  | (142.1 | ) |  |  | (1.1 | )
Total before tax |  |  | 676.1 |  |  |  | (345.8 | ) |  |  | (144.9 | )
Income tax benefit |  |  | (59.3 | ) |  |  | 5.5 |  |  |  | 4.3 |
Total reclassifications for the period |  | $ | 616.8 |  |  | $ | (340.3 | ) |  | $ | (140.6 | )
(i) | Reported in other (expense), net in the consolidated statements of income (loss)
(ii) | Included in net periodic postretirement cost (see Note 18, “Employee plans”)
Schedule of Changes in Common Stock and Treasury Stock | The following table summarizes the changes in shares of common stock and treasury stock:
|  | Common Stock |  |  | Treasury Stock |
Balance at December 31, 2018 |  |  | 54.2 |  |  |  | 3.1 |
Debt exchange |  |  | 10.6 |  |  |  | — |
Stock-based compensation |  |  | 1.1 |  |  |  | 0.4 |
Balance at December 31, 2019 |  |  | 65.9 |  |  |  | 3.5 |
Stock-based compensation |  |  | 0.9 |  |  |  | 0.3 |
Balance at December 31, 2020 |  |  | 66.8 |  |  |  | 3.8 |
Debt exchange |  |  | 4.6 |  |  |  | 1.2 |
Stock-based compensation |  |  | 1.1 |  |  |  | 0.3 |
Balance at December 31, 2021 |  |  | 72.5 |  |  |  | 5.3 |

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