| Fiscal period | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 |
|---|
| Period End Date | 12/31/2021 | 12/31/2020 | 12/31/2019 | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 | 12/31/2014 | 12/31/2013 | 12/31/2012 |
|---|
| Sales | 2,799.80 | 2,982.10 | 4,122.50 | 4,046.60 | 3,525.10 | 3,134.60 | 3,719.60 | 4,223.40 | 4,043.50 | 4,666.90 |
| Total Revenues | 2,799.80 | 2,982.10 | 4,122.50 | 4,046.60 | 3,525.10 | 3,134.60 | 3,719.60 | 4,223.40 | 4,043.50 | 4,666.90 |
| Cost of sales | 2,466.60 | 2,689.30 | 3,484.50 | 3,416.30 | 3,028.10 | 2,911.80 | 3,659.30 | 3,844.80 | 3,790.90 | 4,041.40 |
| Gross profit (loss) | 333.20 | 292.80 | 638.00 | 630.30 | 497.00 | 222.80 | 60.30 | 378.60 | -- | -- |
| Impairment of goodwill | -- | 287.00 | -- | -- | 114.40 | -- | 126.60 | -- | -- | -- |
| Selling and administrative expenses | 226.90 | 201.00 | 267.20 | 268.20 | 248.00 | 240.80 | 238.80 | 272.50 | 276.40 | 321.60 |
| Restructuring Costs | (11.30) | 1,107.50 | 4.50 | -- | -- | 523.80 | 64.30 | -- | 67.50 | -- |
| Operating Income (Loss) | 117.60 | (1,302.70) | 366.30 | 362.10 | 134.60 | (541.80) | (369.40) | 106.10 | -- | -- |
| Interest expense, net | 96.90 | 94.40 | 99.00 | 101.00 | 133.80 | 124.00 | 110.20 | 108.70 | 65.20 | 71.60 |
| Other income (expense) | 18.20 | (1.20) | 64.40 | 20.50 | 4.00 | 2.40 | 1.60 | 4.10 | 1.70 | -- |
| Debt extinguishment costs | (65.50) | (21.50) | (21.60) | -- | (37.00) | -- | -- | -- | -- | -- |
| Nonoperating retirement benefit expense | 37.20 | (62.10) | (73.60) | (33.90) | (54.30) | (70.60) | -- | -- | -- | -- |
| Income before income tax provision | 10.60 | (1,481.90) | 236.50 | 247.70 | (86.50) | (734.00) | (478.00) | 1.50 | (154.80) | 232.30 |
| Current- Foreign | -- | -- | -- | -- | -- | -- | -- | -- | -- | 9.00 |
| Current: Federal | -- | -- | -- | -- | -- | -- | -- | -- | -- | 82.30 |
| Current: State | -- | -- | -- | -- | -- | -- | -- | -- | -- | 8.70 |
| Deferred: Federal | -- | -- | -- | -- | -- | -- | -- | -- | -- | (27.60) |
| Deferred: State | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0.10 |
| Deferred: Foreign | -- | -- | -- | -- | -- | -- | -- | -- | -- | (0.10) |
| Income tax provision (benefit) | 26.80 | 77.70 | (28.50) | 11.00 | (6.80) | (106.90) | (112.10) | (8.70) | (63.60) | 72.40 |
| INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE EXTRAORDINARY GAINS | (16.20) | (1,559.60) | 265.00 | 236.70 | -- | -- | -- | 10.20 | (91.20) | 159.90 |
| Income from discontinued operations, net of income taxes | -- | -- | -- | -- | -- | -- | -- | (0.60) | 252.80 | 7.90 |
| Net Income (loss) before cumulative effect of change in accounting principle | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Extraordinary gains on sales of operations, net of income taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative effect of change in accounting principle,net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Consolidated Net Income (Loss) | (16.20) | (1,559.60) | 265.00 | 236.70 | (79.70) | (627.10) | (365.90) | 9.60 | 161.60 | 167.80 |
| Less: Net income (loss)attributable to noncontrolling interests | 22.00 | 13.00 | 12.50 | 14.30 | 12.20 | 13.80 | 12.00 | 12.20 | 7.60 | 9.40 |
| Net income attributable to ATI | (38.20) | (1,572.60) | 252.50 | 222.40 | (91.90) | (640.90) | (377.90) | (2.60) | 154.00 | 158.40 |
| Net income available to ATI (For diluted net income per common share ) | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (loss) from continuing operations | -- | -- | -- | -- | -- | -- | -- | (0.02) | (0.93) | 1.42 |
| EPS (Basic) : Discontinued operations | -- | -- | -- | -- | -- | -- | -- | (0.01) | 2.37 | 0.07 |
| Cumulative effect of change in accounting principle- Basic | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Extraordinary gains on sales of operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Earnings Per Share (Basic) | (0.30) | (12.43) | 2.01 | 1.78 | (0.83) | (5.97) | (3.53) | (0.03) | 1.44 | 1.49 |
| Income (loss) from continuing operations | -- | -- | -- | -- | -- | -- | -- | (0.02) | (0.93) | 1.36 |
| EPS (Diluted) : Discontinued operations | -- | -- | -- | -- | -- | -- | -- | -- | 2.37 | 0.07 |
| Cumulative effect of change in accounting principle- Diluted | -- | -- | -- | -- | -- | -- | -- | (0.01) | -- | -- |
| Extraordinary gains on sales of operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Earnings Per Share (Diluted) | (0.30) | (12.43) | 1.81 | 1.61 | (0.83) | (5.97) | (3.53) | (0.03) | 1.44 | 1.43 |
| Weighted Average Shares Outstanding (Basic) | 127.10 | 126.50 | 125.80 | 125.20 | 110.10 | 107.30 | 107.30 | 107.10 | 106.80 | 106.10 |
| Weighted Average Shares Outstanding (Diluted) | 127.10 | 126.50 | 146.50 | 145.90 | 110.10 | 107.30 | 107.30 | 107.10 | 106.80 | 116.60 |