Debt - Component of Debt (Detail) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Other indebtedness	$ 0.6	$ 0.8
Unamortized original issue discount and debt issuance costs	(46.3)	(50.3)
Debt	7,039.0	7,079.6
Less: current portion of long-term debt	129.4	55.7
Long-term debt	6,909.6	7,023.9
Secured Debt [Member] \| Senior Secured Credit Facilities [Member]
Debt Instrument [Line Items]
Debt Instrument Carrying Amount	5,009.7	5,129.1
Secured Debt [Member] \| Senior Secured Credit Facilities Revolving Portion [Member]
Debt Instrument [Line Items]
Debt Instrument Carrying Amount	75.0	0.0
Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument Carrying Amount	2,000.0
Senior Notes [Member] \| 5.5% Senior Notes due 2027 [Member]
Debt Instrument [Line Items]
Debt Instrument Carrying Amount	$ 2,000.0	$ 2,000.0

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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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

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Amount of unamortized debt discount (premium) and debt issuance costs.

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- Definition

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

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

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.

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Amount of long-term debt classified as other.

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