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Derivatives - Schedule of Pretax Effects of Derivative Financial Instruments Designated or Previously Designated as Effective Hedges (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain/(Loss) Recognized in OCI (effective portion) | $ (13.2) | $ (4.4) | $ (37.4) | $ (110.1)
Gain/(Loss) Reclassified from AOCI to Income | (3.2) | (6.0) | (0.1) | (32.6)
Interest Rate Swaps [Member] | Interest Expense, Net [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain/(Loss) Recognized in OCI (effective portion) |  |  |  | (88.1)
Gain/(Loss) Reclassified from AOCI to Income | (2.1) | (2.4) | (6.2) | (5.1)
Foreign Currency Contracts [Member] | Sales and Cost of Sales [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain/(Loss) Recognized in OCI (effective portion) | (12.8) | (0.7) | (35.8) | 7.3
Gain/(Loss) Reclassified from AOCI to Income | (0.4) | 1.6 | 12.4 | 2.1
Cross-currency Swaps [Member] | Other Income (Expense), Net [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain/(Loss) Recognized in OCI (effective portion) | (0.4) | (3.7) | (1.6) | (29.3)
Gain/(Loss) Reclassified from AOCI to Income | $ (0.7) | $ (5.2) | $ (6.3) | $ (29.6)

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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624177-113959 + Details
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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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