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Goodwill (Tables)
 6 Months Ended
Sep. 30, 2019
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, 2019.
(in millions)
 
GBS
 
GIS
 
Total
Goodwill, gross
 
$
5,300

 
$
5,068

 
$
10,368

Accumulated impairment losses
 
(701
)
 
(2,061
)
 
(2,762
)
Balance as of March 31, 2019, net
 
$
4,599

 
$
3,007

 
$
7,606


 
 
 
 
 
 
Acquisitions
 
1,202

 
—

 
1,202

Foreign currency translation
 
(72
)
 
(65
)
 
(137
)
Impairment losses
 
(2,625
)
 
(262
)
 
(2,887
)
 
 
 
 
 
 
 
Goodwill, gross
 
6,430

 
5,003

 
11,433

Accumulated impairment losses
 
(3,326
)
 
(2,323
)
 
(5,649
)
Balance as of September 30, 2019, net
 
$
3,104

 
$
2,680

 
$
5,784