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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
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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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