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Accumulated Other Comprehensive Loss (AOCL) (Tables) | 12 Months Ended
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Dec. 31, 2021
Additional financial information disclosures [Abstract] |
Components of Accumulated Other Comprehensive Loss |
Components of AOCL | 2021 |  | 2020
Defined benefit plan liabilities | $ | (86.7) |  |  | $ | (123.7) |
Unrealized gain (loss) on financial instruments | 1.9 |  |  | 2.1 |
Other comprehensive loss before income tax effect | (84.8) |  |  | (121.6) |
Income tax effect(1) | 2.5 |  |  | 2.8 |
Accumulated other comprehensive loss | $ | (82.3) |  |  | $ | (118.8) |
(1)The allocation of the income tax effect to the components of other comprehensive loss is as follows:
| 2021 |  | 2020
Defined benefit plan liabilities | $ | 2.9 |  |  | $ | 3.2 |
Unrealized loss on financial instruments | (0.4) |  |  | (0.4) |
The following table summarizes the changes in the accumulated balances for each component of AOCL:
| Defined benefit plan and other postretirement liabilities |  | Unrealized gain (loss) on financial instruments |  | Total, net of tax
Balance, December 31, 2018 | $ | (100.7) |  |  | $ | 2.0 |  |  | $ | (98.7) |
Impact of ASU 2018-02* | (1.3) |  |  | — |  |  | (1.3) |
Other comprehensive (loss) before reclassifications | (12.7) |  |  | — |  |  | (12.7) |
Net amount reclassified to net income (loss) | 3.0 |  |  | (0.1) |  |  | 2.9 |
Balance, December 31, 2019 | (111.7) |  |  | 1.9 |  |  | (109.8) |
Other comprehensive (loss) before reclassifications | (13.5) |  |  | — |  |  | (13.5) |
Net amount reclassified to net income (loss) | 4.6 |  |  | (0.1) |  |  | 4.5 |
Balance, December 31, 2020 | (120.6) |  |  | 1.8 |  |  | (118.8) |
Other comprehensive (loss) before reclassifications | 31.6 |  |  | — |  | 31.6 |
Net amount reclassified to net income (loss) | 5.0 |  |  | (0.1) |  | 4.9 |
Balance, December 31, 2021 | $ | (84.0) |  |  | $ | 1.7 |  |  | $ | (82.3) |
*ASU 2018-02. See Note 14. Income Taxes for further information regarding our adoption of ASU 2018-02.
Reclassification out of AOCI | Reclassifications out of AOCL were included in the consolidated statements of operations as follows:
AOCL Components |  | Location |  | 2021 |  | 2020 |  | 2019
Defined benefit plan and other postretirement liabilities |  | Cost of goods sold |  | $ | 26.8 |  |  | $ | (4.7) |  |  | $ | (3.2) |
|  | Selling, general and administrative expenses |  | 2.9 |  |  | (2.0) |  |  | (4.4) |
|  | Other operating expense, net |  | 7.3 |  |  | (1.1) |  |  | (1.0) |
|  | Income tax expense |  | (0.4) |  |  | (1.1) |  |  | (1.1) |
|  | Net of tax |  | $ | 36.6 |  |  | $ | (8.9) |  |  | $ | (9.7) |
Gain (loss) on financial instruments |  | Cost of goods sold |  | $ | (0.1) |  |  | $ | (0.2) |  |  | $ | (0.2) |
|  | Income tax benefit |  | 0.0 |  |  | 0.1 |  |  | 0.1 |
|  | Net of tax |  | $ | (0.1) |  |  | $ | (0.1) |  |  | $ | (0.1) |

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