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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 | 6 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Goodwill [Roll Forward] |  |  |  |
Beginning balance |  |  | $ 9,360 |
Goodwill acquired |  |  | 1 |
Acquisition accounting, transfers and other adjustments |  |  | 2 |
Goodwill impairment charges | $ (69) | $ 0 | (69) | $ 0
Foreign currency translation adjustments, net |  |  | 120 |
Ending balance | 9,414 |  | 9,414 |
U.S. Pharmaceutical |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning balance |  |  | 3,924 |
Goodwill acquired |  |  | 0 |
Acquisition accounting, transfers and other adjustments |  |  | 0 |
Goodwill impairment charges |  |  | 0 |
Foreign currency translation adjustments, net |  |  | 39 |
Ending balance | 3,963 |  | 3,963 |
International |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning balance |  |  | 1,443 |
Goodwill acquired |  |  | 1 |
Acquisition accounting, transfers and other adjustments |  |  | 0 |
Goodwill impairment charges | (69) |  | (69) |
Foreign currency translation adjustments, net |  |  | 81 |
Ending balance | 1,456 |  | 1,456 |
Medical-Surgical Solutions |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning balance |  |  | 2,453 |
Goodwill acquired |  |  | 0 |
Acquisition accounting, transfers and other adjustments |  |  | 0 |
Goodwill impairment charges |  |  | 0 |
Foreign currency translation adjustments, net |  |  | 0 |
Ending balance | 2,453 |  | 2,453 |
Prescription Technology Solutions |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning balance |  |  | 1,540 |
Goodwill acquired |  |  | 0 |
Acquisition accounting, transfers and other adjustments |  |  | 2 |
Goodwill impairment charges |  |  | 0 |
Foreign currency translation adjustments, net |  |  | 0 |
Ending balance | $ 1,542 |  | $ 1,542 |

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