Debt - Additional Information (Detail) $ in Millions	3 Months Ended
Mar. 31, 2019 USD ($)
Debt Instrument [Line Items]
Payment of Current Portion of Long Term Debt	$ 268.2
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, current borrowing capacity	1,250.0
Revolving Credit Facility [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	100.0
Revolving Credit Facility [Member] \| Commercial Paper [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	800.0
New Receivables Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 950.0
Debt Instrument, maturity date	Oct. 01, 2019
Debt Instrument, Basis Spread on Variable Rate	0.80%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.40%
A260 Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.60%
Payment of Current Portion of Long Term Debt	$ 268.0
Senior Exchange Notes due 2021 [Member]
Debt Instrument [Line Items]
Senior notes rate	3.75%
Debt Instrument, face amount	$ 300.0
Deferred gain (loss) on net investment hedge recorded in AOCL, net of tax	$ 3.9

Cumulative translation adjustment for net investment hedge.

No definition available.

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- Definition

The cash outflow associated with the payment of current portion of long term debt.

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

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.

+ Details

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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