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Supplemental Disclosures (Supplemental Operating and Financing Cash Flow Items) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Operating: |  |  |
Contingent consideration payments | $ (49) | $ (48) | $ (41)
Prior year dispositions cash received | 19 | 0 | 0
Acquisition/disposition related net charges for adjustments | 57 | 26 | 68
Adjustments and payments related to contingent consideration | 27 | (22) | 27
Financing: |  |  |
Contingent purchase consideration | (28) | (54) | (22)
Deferred purchase consideration related to prior years' acquisitions | (89) | (68) | (43)
Payments of deferred and contingent consideration for acquisitions | (117) | (122) | (65)
Receipt of contingent consideration related to prior year dispositions | $ 71 | $ 0 | $ 0

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