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Accumulated Other Comprehensive Loss (Parenthetical) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Accumulated Other Comprehensive Loss [Abstract] |  |  |
Unrealized gains (losses) on derivative instruments, tax | $ 0 | $ 0 | $ (0.3)
Unrecognized actuarial net losses, tax | $ 43.8 | $ 26.0 | $ 34.9

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- Definition Tax effect on the total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. + References No definition available. + Details
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- Definition Tax effect on accumulated change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's deferred hedging gains or losses. + References No definition available. + Details
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- Details
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