Long-Term Debt and Revolving Credit Arrangements - Components of Debt (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 9,388	$ 7,914
Less: unamortized discount and issuance costs	(85)	(327)
Less: current portion of long-term debt	(27)	(27)
Total long-term debt	9,276	7,560
Secured Loans \| 2016 Senior Secured Term Loan
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 0	1,101
Effective Interest Rates	0.00%
Secured Loans \| 2018 Senior Secured Term Loan
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 0	1,463
Effective Interest Rates	0.00%
Secured Loans \| 2025 Refinanced Term Loan
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 1,448	0
Effective Interest Rates	3.80%
Secured Loans \| 2027 Refinanced Term Loan
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 1,090	0
Effective Interest Rates	3.80%
Senior Note \| 2025 Senior Note
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 1,000	1,000
Effective Interest Rates	7.70%
Senior Note \| 2026 Senior Note
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 1,500	1,500
Effective Interest Rates	8.10%
Senior Note \| 2027 Senior Note
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 1,200	1,200
Effective Interest Rates	7.70%
Senior Note \| 2028 Senior Note
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 500	500
Effective Interest Rates	7.00%
Senior Note \| 2029 Senior Note
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 1,500	0
Effective Interest Rates	4.70%
Convertible Notes \| 2025 Convertible Note
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 1,150	$ 1,150
Effective Interest Rates	0.20%

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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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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

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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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