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Business Combinations - Additions, Payments, and Net Changes, as well as Interest Expense Accretion on Estimated Acquisition Earn-Out Payables (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Business Combinations [Abstract] |  |
Beginning balance | $ 249 | $ 252
Additions to estimated acquisition earn-out payables | 9 | 20
Payments for estimated acquisition earn-out payables | (52) | (16)
Subtotal | 206 | 256
Net change in earnings from estimated acquisition earn-out payables: |  |
Change in fair value on estimated acquisition earn-out payables | (4) | (4)
Interest expense accretion | 2 | 2
Net change in earnings from estimated acquisition earn-out payables | (2) | (2)
Foreign currency translation adjustments during the year | (1) | 1
Ending balance | $ 203 | $ 255

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