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Debt - Term Loan Facility (Details) - USD ($)	1 Months Ended
Debt - Term Loan Facility (Details) - USD ($)	Mar. 31, 2019	Mar. 31, 2020	Dec. 31, 2019
Incremental Loan Facility
Debt Instrument [Line Items]
Proceeds from issuance of debt	$ 500,000,000
Debt issued as a percentage of par value		99.50%
Annual effective interest rate		4.19%
Term Loan Facility
Debt Instrument [Line Items]
Annual effective interest rate		3.61%
Term Loan Facility
Debt Instrument [Line Items]
Long-term debt, principal balance		$ 2,003,000,000	$ 2,003,000,000