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Debt - Summary of Debt - Senior Unsecured Notes (Details) - USD ($)		1 Months Ended
	Oct. 01, 2020	Aug. 31, 2021	Sep. 30, 2021	Jun. 24, 2021	Dec. 31, 2020	Feb. 28, 2020
Debt
Total debt outstanding			$ 5,368,526,000		$ 3,547,400,000
Debt issuance costs			(50,528,000)		(51,309,000)
Term Loan Facility, discount			(8,793,000)		(9,591,000)
Redemption Price (as a percentage of principal)		100.00%
Debt face amount	$ 1,600,000
CPA Global
Debt
Cash	$ 2,078,084,000
Revolving Credit Facility
Debt
Total debt outstanding			$ 0		$ 0
Interest Rate			0.00%		0.00%
Term Loan Facility
Debt
Total debt outstanding			$ 2,825,950,000		$ 2,847,400,000
Interest Rate			3.598%		3.626%
DRG Acquisition - Term Loan
Debt
Total debt outstanding						$ 360,000
Senior Unsecured Notes 2029
Debt
Total debt outstanding				$ 1,000,000,000
Interest Rate				4.875%