v2.3.0.15

Segment and Geographical Area Information, Textuals (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2011 | Sep. 30, 2010 | Sep. 30, 2011 | Sep. 30, 2010
Segment Reporting Information [Line Items] |  |  |  |
Charges relating to LTI programs and certain short-term incentive plans |  | $ 0.6 |  | $ 2.4
Non-cash LIFO benefits (charges) | 7.1 | 2.0 | (12.8) | (6.2)
Unrealized (losses) gains on derivatives | (12.7) | 10.9 | (19.8) | (7.1)
Metal related gains(losses) on internal hedging activities | 2.3 | (0.8) | 11.6 | (2.7)
Fabricated Products [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Environmental expenses included in operating results | 0.1 | 13.1 | 0.6 | 13.5
Unrealized (losses) gains on derivatives | (2.0) | (2.4) | (0.6) | (5.2)
All Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Unrealized (losses) gains on derivatives | $ (14.8) | $ 17.1 | $ (21.4) | $ 1.1
Anglesey Aluminum Limited [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Ownership holding in Anglesey | 49.00% |  | 49.00% |

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