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Other (Income) Expense, Net Other (Income) Expense, Net - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Component of Other Income / Expense of Nonoperating [Line Items] |  |  |
Interest paid |  | $ 387 | $ 356
Healthcare Services Segment |  |  |
Component of Other Income / Expense of Nonoperating [Line Items] |  |  |
Goodwill, Impairment Loss | $ 78 |  | $ 162

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