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Goodwill and Intangible Assets, Net - Schedule of Changes in the Carrying Amount of Goodwill and Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2018 | Jun. 30, 2018 | Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017
Goodwill [Roll Forward] |  |  |  |  |
Beginning balance |  | $ 10,924 |  | $ 10,924 |
Goodwill acquired |  |  |  | 424 |
Goodwill impairment charges | $ (21) |  | $ 0 | (591) | $ (350)
Acquisition accounting, transfers and other adjustments |  |  |  | 31 |
Foreign currency translation adjustments, net |  |  |  | (269) |
Ending balance | 10,519 |  |  | 10,519 |
U.S. Pharmaceutical and Specialty Solutions |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Beginning balance |  | 4,110 |  | 4,110 |
Goodwill acquired |  |  |  | 0 |
Goodwill impairment charges |  |  |  | 0 |
Acquisition accounting, transfers and other adjustments |  |  |  | 13 |
Foreign currency translation adjustments, net |  |  |  | (49) |
Ending balance | 4,074 |  |  | 4,074 |
European Pharmaceutical Solutions |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Beginning balance |  | 1,850 |  | 1,850 |
Goodwill acquired |  |  |  | 52 |
Goodwill impairment charges |  | (570) |  | (570) |
Acquisition accounting, transfers and other adjustments |  |  |  | (4) |
Foreign currency translation adjustments, net |  |  |  | (135) |
Ending balance | 1,193 |  |  | 1,193 |
Medical-Surgical Solutions |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Beginning balance |  | 2,070 |  | 2,070 |
Goodwill acquired |  |  |  | 360 |
Goodwill impairment charges |  |  |  | 0 |
Acquisition accounting, transfers and other adjustments |  |  |  | 16 |
Foreign currency translation adjustments, net |  |  |  | 0 |
Ending balance | 2,446 |  |  | 2,446 |
Other |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Beginning balance |  | $ 2,894 |  | 2,894 |
Goodwill acquired |  |  |  | 12 |
Goodwill impairment charges |  |  |  | (21) |
Acquisition accounting, transfers and other adjustments |  |  |  | 6 |
Foreign currency translation adjustments, net |  |  |  | (85) |
Ending balance | $ 2,806 |  |  | $ 2,806 |

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