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Summary of Significant Accounting Policies - Narrative (Details) - Discontinued Operations, Disposed of by Sale € in Millions, $ in Millions | Apr. 01, 2021 EUR (€) | Apr. 01, 2021 USD ($) | Oct. 01, 2020 USD ($)
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HPS Business |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Transaction consideration | € 468 | $ 551 |
HHS Business |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Transaction consideration |  |  | $ 5,000

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