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Supplemental Disclosures (Supplemental Operating and Financing Cash Flow Items) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Operating: |  |
Contingent consideration payments | $ 0 | $ (1)
Acquisition/disposition related net charges for adjustments | 10 | 0
Adjustments and payments related to contingent consideration | 10 | (1)
Financing: |  |
Contingent purchase consideration | (4) | (10)
Deferred purchase consideration related to prior years' acquisitions | (12) | (27)
Payments of deferred and contingent consideration for acquisitions | (16) | (37)
Receipt of contingent consideration related to prior year dispositions | $ 3 | $ 5

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