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Goodwill (Tables) | 6 Months Ended
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Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Summary of Changes in the Carrying Amount of Goodwill by Segment | The following table summarizes the changes in the carrying amount of goodwill, by segment, as of September 30, 2021.
(in millions) |  | GBS |  | GIS |  | Total
Goodwill, gross |  | $ | 5,131 |  |  | $ | 5,066 |  |  | $ | 10,197 |
Accumulated impairment losses |  | (4,490) |  |  | (5,066) |  |  | (9,556) |
Balance as of March 31, 2021, net |  | $ | 641 |  |  | $ | — |  |  | $ | 641 |
Foreign currency translation |  | (10) |  |  | — |  |  | (10) |
Goodwill, gross |  | 5,121 |  |  | 5,066 |  |  | 10,187 |
Accumulated impairment losses |  | (4,490) |  |  | (5,066) |  |  | (9,556) |
Balance as of September 30, 2021, net |  | $ | 631 |  |  | $ | — |  |  | $ | 631 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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