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Additional Capital Disclosures - Additional Information (Detail) | Mar. 31, 2018 | Mar. 31, 2017
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Capital structure [abstract] |  |
Total capital (loans and borrowings and equity) | 22.00% | 21.00%

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- Definition Capital structure + References No definition available. + Details
Name: | wit_CapitalStructureAbstract
Namespace Prefix: | wit_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Debt to capital ratios. + References No definition available. + Details
Name: | wit_DebtToCapitalRatios
Namespace Prefix: | wit_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant