Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or 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 (e)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

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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.

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No definition available.

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Derivatives - Additional Information (Detail) - USD ($)	3 Months Ended
Derivatives - Additional Information (Detail) - USD ($)	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Derivative [Line Items]
Cash flow hedge gain (loss) to be reclassified within twelve months	$ 16,000,000
Other Expense, Net [Member]
Derivative [Line Items]
Derivative instruments not designated as hedging instruments, expense (income), net	9,500,000	$ 21,600,000
4.70% Senior Notes Due 2020 [Member]
Derivative [Line Items]
Debt Instrument, face amount	$ 277,000,000
Debt Instrument, interest rate, stated percentage	4.70%		4.70%
4.00% Senior Notes Due 2024 [Member]
Derivative [Line Items]
Debt Instrument, face amount	$ 250,000,000
Debt Instrument, interest rate, stated percentage	4.00%		4.00%
Interest Rate Swaps [Member]
Derivative [Line Items]
Derivative, notional amount	$ 527,000,000
Cross-currency Swaps [Member]
Derivative [Line Items]
Derivative, notional amount	166,000,000
Foreign Currency Contracts [Member]
Derivative [Line Items]
Derivative, notional amount	396,000,000
Foreign Currency Contracts [Member] \| Derivatives Not Designated as Effective Hedges [Member]
Derivative [Line Items]
Derivative, notional amount	$ 1,500,000,000