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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 | 6 Months Ended
--- | --- | ---
Sep. 30, 2018 | Jun. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Goodwill [Roll Forward] |  |  |  |  |
Beginning balance |  | $ 10,924 |  | $ 10,924 |
Goodwill acquired |  |  |  | 402 |
Goodwill impairment charges | $ 0 | (570) | $ (350) | (570) | $ (350)
Acquisition accounting, transfers and other adjustments |  |  |  | 35 |
Foreign currency translation adjustments, net |  |  |  | (164) |
Ending balance | 10,627 |  |  | 10,627 |
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 |  |  |  | (40) |
Ending balance | 4,083 |  |  | 4,083 |
European Pharmaceutical Solutions |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Beginning balance |  | 1,850 |  | 1,850 |
Goodwill acquired |  |  |  | 37 |
Goodwill impairment charges |  | (570) |  | (570) |
Acquisition accounting, transfers and other adjustments |  |  |  | 1 |
Foreign currency translation adjustments, net |  |  |  | (108) |
Ending balance | 1,210 |  |  | 1,210 |
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 |  |  |  | 15 |
Foreign currency translation adjustments, net |  |  |  | 0 |
Ending balance | 2,445 |  |  | 2,445 |
Other |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Beginning balance |  | $ 2,894 |  | 2,894 |
Goodwill acquired |  |  |  | 5 |
Goodwill impairment charges |  |  |  | 0 |
Acquisition accounting, transfers and other adjustments |  |  |  | 6 |
Foreign currency translation adjustments, net |  |  |  | (16) |
Ending balance | $ 2,889 |  |  | $ 2,889 |

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
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