Debt - Summary of Debt Obligations (Detail) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2021	Dec. 31, 2020
Line of Credit Facility [Line Items]
Total debt obligations	$ 1,491	$ 1,443
Less: unamortized deferred financing costs	(21)	(28)
Total debt, net of deferred financing costs	1,470	1,415
Less: short-term and current portion of long-term debt	(1)	(18)
Long-term debt	1,469	1,397
2019 Term Loan [Member]
Line of Credit Facility [Line Items]
Total debt obligations	$ 1,140
Term Loan Facility [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Maturity Date	Oct. 01, 2024
Total debt obligations	$ 0	0
Term Loan Facility [Member] \| 2019 Term Loan [Member]
Line of Credit Facility [Line Items]
Maturity Date	Oct. 01, 2026
Total debt obligations	$ 1,140	1,188
Term Loan Facility [Member] \| 2020 Term Loan [Member]
Line of Credit Facility [Line Items]
Maturity Date	Oct. 01, 2026
Total debt obligations		250
Senior Notes [Member]
Line of Credit Facility [Line Items]
Maturity Date	Jul. 15, 2029
Total debt obligations	$ 350
Other Obligations [Member]
Line of Credit Facility [Line Items]
Total debt obligations	$ 1	$ 5

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

No definition available.

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- Definition

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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- Definition

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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- Definition

Date the credit facility terminates, in YYYY-MM-DD format.

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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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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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