Derivatives and Hedging Activities - Narrative (Detail) - USD ($)	6 Months Ended
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

Derivative, Notional Amount, Amount Settled

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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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

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- Definition

The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121549185&loc=d3e80748-113994

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