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Goodwill - Schedule of Reporting Units Goodwill Balances (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Goodwill [Line Items] |  |  |
Goodwill | $ 7,046,241 | $ 6,919,109 | $ 6,787,635
Percentage change in operating income used to evaluate fair value of reporting unit for goodwill assessment | 3.00% |  |
Percentage change in discount rate used to evaluate fair value of reporting unit for goodwill assessment | 1.00% |  |
Kidney Care | GERMANY |  |  |
Goodwill [Line Items] |  |  |
Goodwill | $ 298,499 |  |
Carrying amount coverage | 6.60% |  |
Sensitivities, Operating Income | (1.70%) |  |
Sensitivities, Discount rate | (9.40%) |  |

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