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Accumulated Other Comprehensive Income (Loss) | 3 Months Ended
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Mar. 31, 2016
Equity [Abstract] |
Accumulated Other Comprehensive Income (Loss) | Accumulated Other Comprehensive Income (Loss) The changes in accumulated other comprehensive income (loss) (AOCI) by component, net of tax, for the three month period ended March 31, 2016 were as follows (in millions):
| Post- retirement benefit plans |  | Currency translation adjustment |  | Unrealized holding gains on securities |  | Derivatives |  | Total
Attributable to ATI: |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2015 | $ | (951.2 | ) |  | $ | (47.6 | ) |  | $ | — |  |  | $ | (15.7 | ) |  | $ | (1,014.5 | )
OCI before reclassifications |  | 13.9 |  |  |  | (3.9 | ) |  |  | — |  |  |  | (5.7 | ) |  | 4.3 |
Amounts reclassified from AOCI | (a) | 12.2 |  |  | (b) | — |  |  | (b) | — |  |  | (c) | 3.1 |  |  | 15.3 |
Net current-period OCI |  | 26.1 |  |  |  | (3.9 | ) |  |  | — |  |  |  | (2.6 | ) |  | 19.6 |
Balance, March 31, 2016 | $ | (925.1 | ) |  | $ | (51.5 | ) |  | $ | — |  |  | $ | (18.3 | ) |  | $ | (994.9 | )
Attributable to noncontrolling interests: |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2015 | $ | — |  |  | $ | 19.4 |  |  | $ | — |  |  | $ | — |  |  | $ | 19.4 |
OCI before reclassifications |  | — |  |  |  | (1.5 | ) |  |  | — |  |  |  | — |  |  | (1.5 | )
Amounts reclassified from AOCI |  | — |  |  | (b) | — |  |  |  | — |  |  |  | — |  |  | — |
Net current-period OCI |  | — |  |  |  | (1.5 | ) |  |  | — |  |  |  | — |  |  | (1.5 | )
Balance, March 31, 2016 | $ | — |  |  | $ | 17.9 |  |  | $ | — |  |  | $ | — |  |  | $ | 17.9 |
(a) | Amounts were included in net periodic benefit cost for pension and other postretirement benefit plans (see Note 7).
(b) | No amounts were reclassified to earnings.
(c) | Amounts related to the effective portion of the derivatives are included in cost of goods sold in the period or periods the hedged item affects earnings. Amounts related to the ineffective portion of the derivatives are presented in selling and administrative expenses on the consolidated statement of operations (see Note 5).
The changes in AOCI by component, net of tax, for the three month period ended March 31, 2015 were as follows (in millions):
| Post- retirement benefit plans |  | Currency translation adjustment |  | Unrealized holding gains on securities |  | Derivatives |  | Total
Attributable to ATI: |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2014 | $ | (931.5 | ) |  | $ | (16.2 | ) |  | $ | — |  |  | $ | 16.3 |  |  | $ | (931.4 | )
OCI before reclassifications |  | — |  |  |  | (21.6 | ) |  |  | — |  |  |  | 11.4 |  |  | (10.2 | )
Amounts reclassified from AOCI | (a) | 12.5 |  |  | (b) | — |  |  | (b) | — |  |  | (c) | (1.7 | ) |  | 10.8 |
Net current-period OCI |  | 12.5 |  |  |  | (21.6 | ) |  |  | — |  |  |  | 9.7 |  |  | 0.6 |
Balance, March 31, 2015 | $ | (919.0 | ) |  | $ | (37.8 | ) |  | $ | — |  |  | $ | 26.0 |  |  | $ | (930.8 | )
Attributable to noncontrolling interests: |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2014 | $ | — |  |  | $ | 25.0 |  |  | $ | — |  |  | $ | — |  |  | $ | 25.0 |
OCI before reclassifications |  | — |  |  |  | (0.2 | ) |  |  | — |  |  |  | — |  |  | (0.2 | )
Amounts reclassified from AOCI |  | — |  |  | (b) | — |  |  |  | — |  |  |  | — |  |  | — |
Net current-period OCI |  | — |  |  |  | (0.2 | ) |  |  | — |  |  |  | — |  |  | $ | (0.2 | )
Balance, March 31, 2015 | $ | — |  |  | $ | 24.8 |  |  | $ | — |  |  | $ | — |  |  | $ | 24.8 |
(a) | Amounts were included in net periodic benefit cost for pension and other postretirement benefit plans (see Note 7).
(b) | No amounts were reclassified to earnings.
(c) | Amounts related to the effective portion of the derivatives are included in cost of goods sold in the period or periods the hedged item affects earnings. Amounts related to the ineffective portion of the derivatives are presented in selling and administrative expenses on the consolidated statement of operations (see Note 5).
Reclassifications out of AOCI for the three month periods ended March 31, 2016 and 2015 were as follows:
|  | Amount reclassified from AOCI |
Details about AOCI Components (In millions) |  | Three months ended March 31, 2016 |  | Three months ended March 31, 2015 |  | Affected line item in the statements of operations
Postretirement benefit plans |  |  |  |  |  |
Prior service (cost) credit |  | $ | (0.9 | ) |  | $ | (1.5 | ) | (a) |
Actuarial losses |  | (18.7 | ) |  | (18.7 | ) | (a) |
|  | (19.6 | ) |  | (20.2 | ) | (c) | Total before tax
|  | (7.4 | ) |  | (7.7 | ) |  | Tax benefit
|  | $ | (12.2 | ) |  | $ | (12.5 | ) |  | Net of tax
Derivatives |  |  |  |  |  |
Nickel and other raw material contracts |  | $ | (6.3 | ) |  | $ | (3.6 | ) | (b) |
Natural gas contracts |  | (6.3 | ) |  | (3.9 | ) | (b) |
Electricity contracts |  | — |  |  | (0.2 | ) | (b) |
Foreign exchange contracts |  | 7.6 |  |  | 10.4 |  | (b) |
|  | (5.0 | ) |  | 2.7 |  | (c) | Total before tax
|  | (1.9 | ) |  | 1.0 |  |  | Tax provision (benefit)
|  | $ | (3.1 | ) |  | $ | 1.7 |  |  | Net of tax
(a) | Amounts are included in the computation of pension and other postretirement benefit expense, which is reported in both cost of goods sold and selling and administrative expenses. For additional information, see Note 7.
(b) | Amounts related to the effective portion of the derivatives are included in cost of goods sold in the period or periods the hedged item affects earnings. Amounts related to the ineffective portion of the derivatives are presented in selling and administrative expenses on the consolidated statement of operations (see Note 5).
(c) | For pretax items, positive amounts are income and negative amounts are expense in terms of the impact to net income. Tax effects are presented in conformity with ATI’s presentation in the consolidated statements of operations.

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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at fiscal year-end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, and unrealized gains and losses on certain investments in debt and equity securities as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge + References No definition available. + Details
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