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Goodwill and Intangible Assets, Net - Schedule of Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Jun. 30, 2018 | Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2018
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, beginning balance |  | $ 10,924 | $ 9,358 | $ 10,924 |
Goodwill acquired |  |  | 76 | 442 |
Acquisition accounting, transfers and other adjustments |  |  | 12 | 35 |
Other changes/disposals |  |  | (6) |  |
Goodwill impairment |  |  | (2) | (1,797) | $ (1,738)
Foreign currency translation adjustments, net |  |  | (78) | (246) |
Goodwill, ending balance | $ 9,358 |  | 9,360 | 9,358 | 10,924
U.S. Pharmaceutical and Specialty Solutions |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, beginning balance |  | 4,110 | 4,078 | 4,110 |
Goodwill acquired |  |  | 0 | 17 |
Acquisition accounting, transfers and other adjustments |  |  | 1 | 13 |
Other changes/disposals |  |  | (1) |  |
Goodwill impairment |  |  | 0 | 0 |
Foreign currency translation adjustments, net |  |  | (11) | (62) |
Goodwill, ending balance | 4,078 |  | 4,067 | 4,078 | 4,110
European Pharmaceutical Solutions |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, beginning balance |  | 1,850 | 0 | 1,850 |
Goodwill acquired |  |  | 62 | 52 |
Acquisition accounting, transfers and other adjustments |  |  | 4 | (5) |
Other changes/disposals |  |  | 0 |  |
Goodwill impairment | (1,200) | (570) | 0 | (1,776) | (1,300)
Foreign currency translation adjustments, net |  |  | (3) | (121) |
Goodwill, ending balance | 0 |  | 63 | 0 | 1,850
Medical-Surgical Solutions |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, beginning balance |  | 2,070 | 2,451 | 2,070 |
Goodwill acquired |  |  | 0 | 360 |
Acquisition accounting, transfers and other adjustments |  |  | 7 | 21 |
Other changes/disposals |  |  | (5) |  |
Goodwill impairment |  |  | 0 | 0 |
Foreign currency translation adjustments, net |  |  | 0 | 0 |
Goodwill, ending balance | 2,451 |  | 2,453 | 2,451 | 2,070
Other |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, beginning balance |  | $ 2,894 | 2,829 | 2,894 |
Goodwill acquired |  |  | 14 | 13 |
Acquisition accounting, transfers and other adjustments |  |  | 0 | 6 |
Other changes/disposals |  |  | 0 |  |
Goodwill impairment |  |  | (2) | (21) |
Foreign currency translation adjustments, net |  |  | (64) | (63) |
Goodwill, ending balance | $ 2,829 |  | $ 2,777 | $ 2,829 | $ 2,894

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