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Derivatives and Hedging Activities - Narrative (Detail) - USD ($) | 6 Months Ended |
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Jun. 30, 2020 | Dec. 31, 2019
Designated as hedging instruments: | Cross Currency Interest Rate Contract |  |
Derivative [Line Items] |  |
Derivative, notional amount | $ 1,597,000,000.0 | $ 750,000,000.0
Not designated as hedging instruments | Foreign currency forward contracts |  |
Derivative [Line Items] |  |
Derivative, notional amount | 3,600,000,000 | 2,500,000,000
Net investment hedges | Designated as hedging instruments: |  |
Derivative [Line Items] |  |
Derivative, notional amount | 3,465,700,000 | 4,078,700,000
Cash flow hedges | Foreign currency forward and option contracts (included component) |  |
Derivative [Line Items] |  |
Derivative, notional amount | 984,800,000 | 824,800,000
Net loss to be reclassified within the next 12 months | (20,100,000) | (16,300,000)
Cash flow hedges | Interest rate locks |  |
Derivative [Line Items] |  |
Derivative, notional amount | 618,000,000.0 | $ 0
Net loss to be reclassified within the next 12 months | 3,000,000.0 |
Derivative, notional aggregate amount settled | $ 1,250,000,000 |

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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
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