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Debt - Narrative (Details) - USD ($)	Aug. 13, 2020	Dec. 31, 2021	Dec. 01, 2021	Oct. 15, 2021	Dec. 31, 2020	Apr. 21, 2020
Debt Instrument [Line Items]
2022		$ 102,700,000
Long-term debt, aggregate principal amount		6,904,500,000			$ 3,954,400,000
Sirius Computer Solutions, Inc.
Debt Instrument [Line Items]
Debt acquired		160,000,000	$ 170,100,000
Senior notes due 2026
Debt Instrument [Line Items]
Debt instrument, aggregate principal amount			$ 1,000,000,000
Interest rate, stated percentage			2.67%
Long-term debt, aggregate principal amount			$ 1,000,000,000
Senior notes due 2028
Debt Instrument [Line Items]
Debt instrument, aggregate principal amount			$ 500,000,000
Interest rate, stated percentage			3.276%
Long-term debt, aggregate principal amount			$ 500,000,000.0
Senior notes due 2031
Debt Instrument [Line Items]
Debt instrument, aggregate principal amount			$ 1,000,000,000
Interest rate, stated percentage			3.569%
Long-term debt, aggregate principal amount			$ 1,000,000,000
Senior Notes due September 2025
Debt Instrument [Line Items]
Interest rate, stated percentage	5.00%
Long-term debt, aggregate principal amount	$ 600,000,000
Percentage of principal amount redeemed	103.75%
Senior unsecured revolving loan facility
Debt Instrument [Line Items]
Additional borrowing capacity		1,000,000,000
Undrawn letters of credit		1,000,000
Long-term debt, term			5 years
Long-term debt, aggregate principal amount		316,400,000			$ 0
Borrowing capacity of the Revolving Loan			$ 1,600,000,000
Senior unsecured revolving loan facility | Accounts Payable, Inventory Financing
Debt Instrument [Line Items]
Amount owed under Revolving loan financing agreement		296,000,000
Senior unsecured term loan facility
Debt Instrument [Line Items]
2022		9,000,000
2023 and thereafter		18,000,000
Long-term debt, term			5 years
Interest Rate					0.00%
Long-term debt, aggregate principal amount		$ 1,420,000,000			$ 0
Borrowing capacity of the Revolving Loan			$ 1,400,000,000
Bridge Loan | Senior Unsecured 364 Day Bridge Loan Facility
Debt Instrument [Line Items]
Debt instrument, aggregate principal amount				$ 2,500,000,000
Long-term debt, term				364 days
Bridge Loan | Senior notes due 2026
Debt Instrument [Line Items]
Interest Rate			2.67%
Bridge Loan | Senior notes due 2028
Debt Instrument [Line Items]
Interest Rate			3.276%
Bridge Loan | Senior notes due 2031
Debt Instrument [Line Items]
Interest Rate			3.569%
Unsecured Debt | Senior notes due 2025
Debt Instrument [Line Items]
Debt instrument, aggregate principal amount						$ 600,000,000
Interest rate, stated percentage						4.125%
Unsecured Debt | Senior notes due 2029
Debt Instrument [Line Items]
Debt instrument, aggregate principal amount	$ 700,000,000
Interest rate, stated percentage	3.25%

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