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

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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.

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Amount, after accumulated amortization, of debt discount.

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Amount, after accumulated amortization, of debt premium.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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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.

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Debt - Long-term Debt Footnote (Detail) - Acquisition Corp.	Dec. 31, 2019 USD ($)	Dec. 31, 2019 EUR (€)	Sep. 30, 2019 USD ($)	Sep. 30, 2019 EUR (€)	Apr. 30, 2019 EUR (€)	Oct. 09, 2018 USD ($)	Oct. 09, 2018 EUR (€)
Debt Instrument [Line Items]
Face or principal amount of debt instrument	$ 3,010,000,000.000		$ 2,998,000,000
Unamortized discount	3,000,000		3,000,000
Unamortized deferred financing costs	27,000,000		29,000,000
Unamortized premium	8,000,000		8,000,000
Senior Term Loan Facility due 2023
Debt Instrument [Line Items]
Face or principal amount of debt instrument	1,326,000,000		1,326,000,000
Unamortized discount	3,000,000		3,000,000
Unamortized deferred financing costs	9,000,000		10,000,000
5.000% Senior Secured Notes due 2023
Debt Instrument [Line Items]
Face or principal amount of debt instrument	300,000,000		300,000,000
Unamortized deferred financing costs	2,000,000		2,000,000
4.125% Senior Secured Notes due 2024
Debt Instrument [Line Items]
Face or principal amount of debt instrument	345,000,000	€ 311,000,000	340,000,000	€ 311,000,000
Unamortized deferred financing costs	3,000,000		4,000,000
4.875% Senior Secured Notes due 2024
Debt Instrument [Line Items]
Face or principal amount of debt instrument	220,000,000		220,000,000			$ 30,000,000
Unamortized deferred financing costs	2,000,000		2,000,000
3.625% Senior Secured Notes due 2026
Debt Instrument [Line Items]
Face or principal amount of debt instrument	494,000,000	€ 445,000,000	487,000,000	€ 445,000,000	€ 195,000,000		€ 250,000,000
Unamortized deferred financing costs	7,000,000
Unamortized premium	8,000,000
5.500% Senior Notes due 2026
Debt Instrument [Line Items]
Face or principal amount of debt instrument	325,000,000		325,000,000
Unamortized deferred financing costs	4,000,000		4,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Commitments under revolving credit facility	180,000,000		180,000,000
Letters of credit outstanding	13,000,000
Revolving credit facility outstanding	$ 0		$ 0