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Acquisitions - Narrative (Details) - USD ($) $ in Millions |  |  | 9 Months Ended
--- | --- | --- | ---
Sep. 11, 2023 | Jul. 31, 2023 | Sep. 30, 2023 | Sep. 30, 2022
Schedule of Equity Method Investments [Line Items] |  |  |  |
Payments to acquire businesses, net of cash acquired |  |  | $ 34 | $ 0
Aryeo |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Payments to acquire businesses, net of cash acquired |  | $ 15 |  |
Business acquisition, equity interest issued or issuable, number of shares (in shares) |  | 380,259 |  |
Business combination, consideration transferred, equity interests issued and issuable |  | $ 20 |  |
Business combination, consideration transferred |  | $ 35 |  |
Spruce |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Payments to acquire businesses, net of cash acquired | $ 19 |  |  |

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