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

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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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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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

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Topic 470
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-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629

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- Definition

Debt instrument maturity year.

+ References

No definition available.

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Debt - October 2016 Refinancing Transactions - Additional Information (Detail) € in Millions, $ in Millions		3 Months Ended
	Oct. 18, 2016 USD ($)	Dec. 31, 2016 USD ($)	Oct. 18, 2016 EUR (€)	Sep. 30, 2016 USD ($)
Debt Instrument [Line Items]
Face or principal amount of debt instrument		$ 2,798		$ 2,815
Loss on extinguishment of debt		$ (32)
October 2016 Refinancing Transactions
Debt Instrument [Line Items]
Loss on extinguishment of debt	$ (31)
October 2016 Refinancing Transactions \| 4.125% Senior Secured Notes due 2024
Debt Instrument [Line Items]
Face or principal amount of debt instrument \| €			€ 345
Due date of Senior Secured Notes	2024
Interest rate	4.125%		4.125%
October 2016 Refinancing Transactions \| 4.875% Senior Secured Notes due 2024
Debt Instrument [Line Items]
Face or principal amount of debt instrument	$ 250
Due date of Senior Secured Notes	2024
Interest rate	4.875%		4.875%
October 2016 Refinancing Transactions \| 6.000% Senior Secured Notes due 2021
Debt Instrument [Line Items]
Due date of Senior Secured Notes	2021
Interest rate	6.00%		6.00%
October 2016 Refinancing Transactions \| 6.250% Senior Secured Notes due 2021
Debt Instrument [Line Items]
Due date of Senior Secured Notes	2021
Interest rate	6.25%		6.25%