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v3.3.1.900

Selected Quarterly Financial Data (Unaudited) - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Dec. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Unusual Or Infrequent Item [Line Items] |  |  |  |  |  |
NRV charge | $ 51.2 | $ 76.0 |  | $ 131.5 | $ (25.0) | $ 35.0
NRV charge net of tax | 32.0 | 49.5 |  |  |  |
Deferred tax asset valuation allowance charge |  | $ (63.9) |  | (68.4) |  |
Restructuring charges |  |  |  | 64.3 | 0.0 | 67.5
Impairment of goodwill |  |  |  | 126.6 | $ 0.0 | 0.0
Asset Impairment Charges | 54.5 |  |  |  |  | 55.1
Impairment of Long-Lived Assets Held-for-use, After Tax | 34.1 |  |  |  |  |
Restructuring costs net of tax |  |  |  | $ 41.6 |  | 41.2
Severance and termination benefit costs |  |  |  |  |  | $ 8.2
Other Postretirement Benefits [Member] |  |  |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |  |  |
Settlements and curtailments gains |  |  | $ 25.5 |  |  |
Settlements and curtailments gains net of tax |  |  | $ 18.4 |  |  |
Flat Rolled Products [Member] |  |  |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |  |  |
Impairment of goodwill | 126.6 |  |  |  |  |
Impairment of goodwill net of tax | 79.2 |  |  |  |  |
High Performance Materials & Components and Corporate [Member] |  |  |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |  |  |
Severance and termination benefit costs | 6.3 |  |  |  |  |
Severance and termination benefit costs net of tax | 3.9 |  |  |  |  |
Facility Idling Costs [Member] |  |  |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |  |  |
Restructuring costs | 3.5 |  |  |  |  |
Restructuring costs net of tax | 2.2 |  |  |  |  |
Inventory Valuation Reserve [Member] | Non-PQ grade titanium sponge [Member] |  |  |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |  |  |
Lower of cost or market charges | (25.4) |  |  |  |  |
Lower of cost or market charges net of tax | $ 15.9 |  |  |  |  |

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