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Subsequent Event (Detail) - Subsequent Event - Amendment to Fourth Amendment	Oct. 31, 2017 USD ($)
Subsequent Event [Line Items]
Senior secured revolving credit facility	$ 1,810,000,000
Excess of Eurocurrency Rate Applicable to Domestic Borrowings Only | Minimum
Subsequent Event [Line Items]
Debt instrument basis spread on variable rate	1.125%
Excess of Eurocurrency Rate Applicable to Domestic Borrowings Only | Maximum
Subsequent Event [Line Items]
Debt instrument basis spread on variable rate	2.00%
Excess of Base Rate Domestic Borrowings Only | Minimum
Subsequent Event [Line Items]
Debt instrument basis spread on variable rate	0.125%
Excess of Base Rate Domestic Borrowings Only | Maximum
Subsequent Event [Line Items]
Debt instrument basis spread on variable rate	1.00%
Excess of Euro Currency Rate of Credit Agreement for Foreign Borrowings | Minimum
Subsequent Event [Line Items]
Debt instrument basis spread on variable rate	1.125%
Excess of Euro Currency Rate of Credit Agreement for Foreign Borrowings | Maximum
Subsequent Event [Line Items]
Debt instrument basis spread on variable rate	2.00%
Standby Letters of Credit | Minimum
Subsequent Event [Line Items]
Debt instrument basis spread on variable rate	1.125%
Standby Letters of Credit | Maximum
Subsequent Event [Line Items]
Debt instrument basis spread on variable rate	2.00%
Performance Letters of Credit | Minimum
Subsequent Event [Line Items]
Debt instrument basis spread on variable rate	0.675%
Performance Letters of Credit | Maximum
Subsequent Event [Line Items]
Debt instrument basis spread on variable rate	1.15%

X

- 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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X

- 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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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