Financing - Summary of Debt (Detail) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total principal amount of debt	$ 9,709.0	$ 9,628.0
Less: Original issue discount, net of amortization	(17.0)	(20.3)
Less: Debt issuance costs, net of amortization	(83.2)	(97.2)
Less: Current portion	(32.0)	(32.0)
Total long-term debt	9,576.8	9,478.5
7.125% Senior Notes Due July 2028 [Member]
Debt Instrument [Line Items]
Senior notes	700.0	700.0
5.00% Senior Notes Due March 2027 [Member]
Debt Instrument [Line Items]
Senior notes	750.0	750.0
8.25% Senior Notes Due 2027 [Member]
Debt Instrument [Line Items]
Senior notes	1,000.0	1,000.0
6.00% Senior Notes Due June 2025 [Member]
Debt Instrument [Line Items]
Senior notes	1,300.0	1,300.0
4.75% Senior Secured Notes Due September 2029 [Member]
Debt Instrument [Line Items]
Senior secured notes	1,250.0	1,250.0
6.00% Senior Secured Notes Due 2026 [Member]
Debt Instrument [Line Items]
Senior secured notes	1,500.0	1,500.0
Senior Secured Term Loan Due April 2026 [Member]
Debt Instrument [Line Items]
Senior secured notes	3,104.0	3,128.0
Senior Secured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Senior secured revolving credit facility	$ 105.0	$ 0.0

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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Amount, after accumulated amortization, of debt discount (premium).

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

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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