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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, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Goodwill [Roll Forward] |  |  |  |
Beginning balance |  |  | $ 10,586 |
Goodwill acquired |  |  | 1,195 |
Acquisition accounting, transfers and other adjustments |  |  | 7 |
Goodwill Impairment Charges | $ (350) | $ (290) | (350) | $ (290)
Amount reclassified to assets held for sale |  |  | (124) |
Foreign currency translation adjustments, net |  |  | 418 |
Ending balance | 11,732 |  | 11,732 |
Distribution Solutions |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning balance |  |  | 10,132 |
Goodwill acquired |  |  | 1,195 |
Acquisition accounting, transfers and other adjustments |  |  | 337 |
Goodwill Impairment Charges |  |  | (350) |
Amount reclassified to assets held for sale |  |  | 0 |
Foreign currency translation adjustments, net |  |  | 418 |
Ending balance | 11,732 |  | 11,732 |
Technology Solutions |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning balance |  |  | 454 |
Goodwill acquired |  |  | 0 |
Acquisition accounting, transfers and other adjustments |  |  | (330) |
Goodwill Impairment Charges |  |  | 0 |
Amount reclassified to assets held for sale |  |  | (124) |
Foreign currency translation adjustments, net |  |  | 0 |
Ending balance | $ 0 |  | $ 0 |

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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=64834752&loc=SL49117168-202975 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + 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 (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits 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 (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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