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Accumulated Other Comprehensive Income (Loss) | 6 Months Ended
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Jun. 30, 2017
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 June 30, 2017 were as follows (in millions):
| Post- retirement benefit plans |  | Currency translation adjustment |  | Unrealized holding gains on securities |  | Derivatives |  | Deferred Tax Asset Valuation Allowance |  | Total
Attributable to ATI: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, March 31, 2017 | $ | (954.7 | ) |  | $ | (76.6 | ) |  | $ | — |  |  | $ | 0.3 |  |  | $ | (40.4 | ) |  | $ | (1,071.4 | )
OCI before reclassifications |  | — |  |  |  | 4.2 |  |  |  | — |  |  |  | (5.2 | ) |  |  | 1.1 |  |  | 0.1 |
Amounts reclassified from AOCI | (a) | 11.2 |  |  | (b) | — |  |  | (b) | — |  |  | (c) | (0.8 | ) |  |  | (6.3 | ) |  | 4.1 |
Net current-period OCI |  | 11.2 |  |  |  | 4.2 |  |  |  | — |  |  |  | (6.0 | ) |  |  | (5.2 | ) |  | 4.2 |
Balance, June 30, 2017 | $ | (943.5 | ) |  | $ | (72.4 | ) |  | $ | — |  |  | $ | (5.7 | ) |  | $ | (45.6 | ) |  | $ | (1,067.2 | )
Attributable to noncontrolling interests: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, March 31, 2017 | $ | — |  |  | $ | 11.7 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 11.7 |
OCI before reclassifications |  | — |  |  |  | 0.2 |  |  |  | — |  |  |  | — |  |  |  | — |  |  | 0.2 |
Amounts reclassified from AOCI |  | — |  |  | (b) | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  | — |
Net current-period OCI |  | — |  |  |  | 0.2 |  |  |  | — |  |  |  | — |  |  |  | — |  |  | 0.2 |
Balance, June 30, 2017 | $ | — |  |  | $ | 11.9 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 11.9 |
The changes in AOCI by component, net of tax, for the six month period ended June 30, 2017 were as follows (in millions):
| Post- retirement benefit plans |  | Currency translation adjustment |  | Unrealized holding gains on securities |  | Derivatives |  | Deferred Tax Asset Valuation Allowance |  | Total
Attributable to ATI: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2016 | $ | (965.5 | ) |  | $ | (85.0 | ) |  | $ | — |  |  | $ | 2.4 |  |  | $ | (45.6 | ) |  | $ | (1,093.7 | )
OCI before reclassifications |  | — |  |  |  | 12.6 |  |  |  | — |  |  |  | (6.7 | ) |  |  | — |  |  | 5.9 |
Amounts reclassified from AOCI | (a) | 22.0 |  |  | (b) | — |  |  | (b) | — |  |  | (c) | (1.4 | ) |  |  | — |  |  | 20.6 |
Net current-period OCI |  | 22.0 |  |  |  | 12.6 |  |  |  | — |  |  |  | (8.1 | ) |  |  | — |  |  | 26.5 |
Balance, June 30, 2017 | $ | (943.5 | ) |  | $ | (72.4 | ) |  | $ | — |  |  | $ | (5.7 | ) |  | $ | (45.6 | ) |  | $ | (1,067.2 | )
Attributable to noncontrolling interests: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2016 | $ | — |  |  | $ | 9.7 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 9.7 |
OCI before reclassifications |  | — |  |  |  | 2.2 |  |  |  | — |  |  |  | — |  |  |  | — |  |  | 2.2 |
Amounts reclassified from AOCI |  | — |  |  | (b) | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  | — |
Net current-period OCI |  | — |  |  |  | 2.2 |  |  |  | — |  |  |  | — |  |  |  | — |  |  | 2.2 |
Balance, June 30, 2017 | $ | — |  |  | $ | 11.9 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 11.9 |
(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 June 30, 2016 were as follows (in millions):
| Post- retirement benefit plans |  | Currency translation adjustment |  | Unrealized holding gains on securities |  | Derivatives |  | Deferred Tax Asset Valuation Allowance |  | Total
Attributable to ATI: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, March 31, 2016 | $ | (925.1 | ) |  | $ | (51.5 | ) |  | $ | — |  |  | $ | (18.3 | ) |  | $ | — |  |  | $ | (994.9 | )
OCI before reclassifications |  | — |  |  |  | (8.3 | ) |  |  | — |  |  |  | 16.3 |  |  |  | — |  |  | 8.0 |
Amounts reclassified from AOCI | (a) | 11.4 |  |  | (b) | — |  |  | (b) | — |  |  | (c) | 1.8 |  |  |  | — |  |  | 13.2 |
Net current-period OCI |  | 11.4 |  |  |  | (8.3 | ) |  |  | — |  |  |  | 18.1 |  |  |  | — |  |  | 21.2 |
Balance, June 30, 2016 | $ | (913.7 | ) |  | $ | (59.8 | ) |  | $ | — |  |  | $ | (0.2 | ) |  | $ | — |  |  | $ | (973.7 | )
Attributable to noncontrolling interests: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, March 31, 2016 | $ | — |  |  | $ | 17.9 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 17.9 |
OCI before reclassifications |  | — |  |  |  | (1.5 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  | (1.5 | )
Amounts reclassified from AOCI |  | — |  |  | (b) | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  | — |
Net current-period OCI |  | — |  |  |  | (1.5 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  | $ | (1.5 | )
Balance, June 30, 2016 | $ | — |  |  | $ | 16.4 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 16.4 |
The changes in AOCI by component, net of tax, for the six month period ended June 30, 2016 were as follows (in millions):
| Post- retirement benefit plans |  | Currency translation adjustment |  | Unrealized holding gains on securities |  | Derivatives |  | Deferred Tax Asset Valuation Allowance |  | Total
Attributable to ATI: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2015 | $ | (951.2 | ) |  | $ | (47.6 | ) |  | $ | — |  |  | $ | (15.7 | ) |  | $ | — |  |  | $ | (1,014.5 | )
OCI before reclassifications |  | 13.9 |  |  |  | (12.2 | ) |  |  | — |  |  |  | 10.6 |  |  |  | — |  |  | 12.3 |
Amounts reclassified from AOCI | (a) | 23.6 |  |  | (b) | — |  |  | (b) | — |  |  | (c) | 4.9 |  |  |  | — |  |  | 28.5 |
Net current-period OCI |  | 37.5 |  |  |  | (12.2 | ) |  |  | — |  |  |  | 15.5 |  |  |  | — |  |  | 40.8 |
Balance, June 30, 2016 | $ | (913.7 | ) |  | $ | (59.8 | ) |  | $ | — |  |  | $ | (0.2 | ) |  | $ | — |  |  | $ | (973.7 | )
Attributable to noncontrolling interests: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, December 31, 2015 | $ | — |  |  | $ | 19.4 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 19.4 |
OCI before reclassifications |  | — |  |  |  | (3.0 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  | (3.0 | )
Amounts reclassified from AOCI |  | — |  |  | (b) | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  | — |
Net current-period OCI |  | — |  |  |  | (3.0 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  | $ | (3.0 | )
Balance, June 30, 2016 | $ | — |  |  | $ | 16.4 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 16.4 |
(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).
Other comprehensive income (loss) amounts (OCI) reported above by category are net of applicable income tax expense (benefit) for each year presented. Income tax expense (benefit) on OCI items is recorded as a change in a deferred tax asset or liability. Amounts recognized in OCI in 2017 include the impact of any deferred tax asset valuation allowances, when applicable, resulting from the Company’s three year cumulative loss position. Foreign currency translation adjustments, including those pertaining to noncontrolling interests, are generally not adjusted for income taxes as they relate to indefinite investments in non-U.S. subsidiaries. Reclassifications out of AOCI for the three and six month periods ended June 30, 2017 and 2016 were as follows:
| Amount reclassified from AOCI |
Details about AOCI Components (In millions) | Three months ended June 30, 2017 |  | Three months ended June 30, 2016 |  | Six months ended June 30, 2017 |  | Six months ended June 30, 2016 |  | Affected line item in the statements of operations
Postretirement benefit plans |  |  |  |  |  |  |  |  |
Prior service (cost) credit | $ | 0.4 |  |  | $ | 0.5 |  | (a) | $ | 0.8 |  |  | $ | (0.4 | ) | (a) |
Actuarial losses | (18.0 | ) |  | (18.8 | ) | (a) | (35.8 | ) |  | (37.5 | ) | (a) |
| (17.6 | ) |  | (18.3 | ) | (c) | (35.0 | ) |  | (37.9 | ) | (c) | Total before tax
| (6.4 | ) |  | (6.9 | ) |  | (13.0 | ) |  | (14.3 | ) |  | Tax provision (benefit) (d)
| $ | (11.2 | ) |  | $ | (11.4 | ) |  | $ | (22.0 | ) |  | $ | (23.6 | ) |  | Net of tax
Derivatives |  |  |  |  |  |  |  |  |
Nickel and other raw material contracts | $ | (1.6 | ) |  | $ | (6.1 | ) | (b) | $ | (2.5 | ) |  | $ | (12.4 | ) | (b) |
Natural gas contracts | (1.1 | ) |  | (4.7 | ) | (b) | (3.4 | ) |  | (11.0 | ) | (b) |
Foreign exchange contracts | 4.1 |  |  | 7.9 |  | (b) | 8.2 |  |  | 15.5 |  | (b) |
| 1.4 |  |  | (2.9 | ) | (c) | 2.3 |  |  | (7.9 | ) | (c) | Total before tax
| 0.6 |  |  | (1.1 | ) |  | 0.9 |  |  | (3.0 | ) |  | Tax provision (benefit) (d)
| $ | 0.8 |  |  | $ | (1.8 | ) |  | $ | 1.4 |  |  | $ | (4.9 | ) |  | 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.
(d) | These amounts exclude the impact of any deferred tax asset valuation allowance, when applicable.

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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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