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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 835
-SubTopic 30
-Section 45
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-Topic 835
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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.

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
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- Definition

Redemption deposit.

+ References

No definition available.

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Debt - Tender Offer and Notes Redemption - Additional Information (Detail) - USD ($)	1 Months Ended		3 Months Ended		9 Months Ended
	Apr. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2018	Mar. 14, 2018
Debt Instrument [Line Items]
Loss on extinguishment of debt			$ 4,000,000	$ 7,000,000	$ 7,000,000	$ 31,000,000
Acquisition Corp.
Debt Instrument [Line Items]
Face or principal amount of debt instrument			$ 3,030,000,000		$ 3,030,000,000		$ 2,851,000,000
6.750% Senior Notes due 2022
Debt Instrument [Line Items]
Interest rate								6.75%
Face or principal amount of debt instrument								$ 523,000,000
Loss on extinguishment of debt	$ 5,000,000	$ 23,000,000
6.750% Senior Notes due 2022 \| Acquisition Corp.
Debt Instrument [Line Items]
Face or principal amount of debt instrument								112,000,000
Redemption deposit								$ 119,000,000