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Derivatives - Schedule of Pretax Effects of Derivative Financial Instruments Designated or Previously Designated as Effective Hedges (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gain/(Loss) Recognized in OCI (effective portion) | $ (15.7) | $ 22.4 | $ (38.9)
Gain/(Loss) Reclassified from AOCL to Income | 7.0 | (42.7) | (8.3)
Interest rate swaps |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gain/(Loss) Recognized in OCI (effective portion) | 0.0 | 0.0 | 0.0
Gain/(Loss) Reclassified from AOCL to Income | (8.0) | (26.6) | (8.2)
Foreign currency contracts |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gain/(Loss) Recognized in OCI (effective portion) | (15.5) | 24.1 | (33.1)
Gain/(Loss) Reclassified from AOCL to Income | 15.1 | (13.0) | 6.8
Commodity contracts |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gain/(Loss) Recognized in OCI (effective portion) | (0.2) | 0.0 | 0.0
Gain/(Loss) Reclassified from AOCL to Income | (0.1) | 0.0 | 0.0
Cross-currency Swaps |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Gain/(Loss) Recognized in OCI (effective portion) | 0.0 | (1.7) | (5.8)
Gain/(Loss) Reclassified from AOCL to Income | $ 0.0 | $ (3.1) | $ (6.9)

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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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 and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109978405&loc=d3e80720-113993 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580 + Details
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