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Goodwill and Intangible Assets, Net - Schedule of Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2015
Goodwill [Roll Forward] |  |  |
Goodwill, beginning balance | $ 9,786 | $ 9,817 |
Goodwill acquired | 2,858 | 21 |
Acquisition accounting, transfers and other adjustments | (145) | 8 |
Impairment | (290) | 0 | $ 0
Amount reclassified to assets held for sale | (165) |  |
Goodwill disposed | (1,108) | (86) |
Foreign currency translation adjustments, net | (350) | 26 |
Goodwill, ending balance | 10,586 | 9,786 | 9,817
Distribution Solutions |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, beginning balance | 7,987 | 7,994 |
Goodwill acquired | 2,836 | 21 |
Acquisition accounting, transfers and other adjustments | (146) | 8 |
Impairment | 0 |  |
Amount reclassified to assets held for sale | (165) |  |
Goodwill disposed | (30) | (59) |
Foreign currency translation adjustments, net | (350) | 23 |
Goodwill, ending balance | 10,132 | 7,987 | 7,994
Technology Solutions |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, beginning balance | 1,799 | 1,823 |
Goodwill acquired | 22 | 0 |
Acquisition accounting, transfers and other adjustments | 1 | 0 |
Impairment | (290) |  |
Amount reclassified to assets held for sale | 0 |  |
Goodwill disposed | (1,078) | (27) |
Foreign currency translation adjustments, net | 0 | 3 |
Goodwill, ending balance | $ 454 | $ 1,799 | $ 1,823

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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 increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the 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 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e961-128460 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition The increase (decrease) during the period in book value of long-lived assets that the reporting entity plans to sell within one year (or one business cycle). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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