v3.4.0.3

Accumulated Other Comprehensive Income (Loss) and Other Comprehensive Income (Loss) - Schedule of Components of Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2016 | Mar. 31, 2015
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] |  |
Other comprehensive income (loss), before income taxes | $ 28.7 | $ (35.0)
Total tax (benefit) for the period | 3.4 | (3.6)
Other comprehensive income (loss), net of tax | 25.3 | (31.4)
Other comprehensive income (loss), before income taxes |  | 5.1
Other comprehensive income (loss), before income taxes | (0.1) | 3.9
Other comprehensive loss, before income taxes | (0.1) | 9.0
Total tax expense for the period |  | 3.4
Other comprehensive loss, net of tax | (0.1) | 5.6
Amortization of actuarial loss and prior service credit | (2.4) | (1.6)
Other pension and OPEB plan adjustments | 0.2 | 0.4
Other comprehensive income (loss), before income taxes | (2.2) | (1.2)
Total tax benefit for the period | (0.8) | (0.5)
Other comprehensive income (loss), net of tax | (1.4) | (0.7)
Other comprehensive income (loss), before income taxes | 26.4 | (27.2)
Total tax expense (benefit) for the period | 2.6 | (0.7)
Other comprehensive income (loss), net of tax | $ 23.8 | $ (26.5)

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- Definition Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges stemming from equity interest in other comprehensive income loss of investee. + References No definition available. + Details
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- Definition Amount before tax of reclassification adjustment from accumulated other comprehensive income (loss) for actuarial gain (loss) and prior service cost (credit) related to pension and other postretirement benefit plans. + References No definition available. + Details
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- Definition Amount of tax expense (benefit), after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e640-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669646-108580 + Details
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