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Business Combination - Details of PCD of EHDFC (Detail) - Jul. 01, 2023 - eHDFC [Member] ₨ in Millions, $ in Millions | INR (₨) | USD ($)
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Disclosure Of Financing Receivable Purchased With Credit Deterioration [Line Items] |  |
Par value of PCD loans at acquisition | ₨ 116,646.3 | $ 1,365.4
Allowance for credit losses on PCD loans at acquisition | 39,415.2 | 461.4
Fair value of receivables at acquisition | 77,200.4 | 903.7
Non-credit discount/(premium) on PCD loans at acquisition | 30.7 | $ 0.4
Wholesale |  |
Disclosure Of Financing Receivable Purchased With Credit Deterioration [Line Items] |  |
Par value of PCD loans at acquisition | 72,684.7 |
Allowance for credit losses on PCD loans at acquisition | 36,487.3 |
Fair value of receivables at acquisition | 36,197.4 |
Non-credit discount/(premium) on PCD loans at acquisition | 0.0 |
Retail |  |
Disclosure Of Financing Receivable Purchased With Credit Deterioration [Line Items] |  |
Par value of PCD loans at acquisition | 43,961.6 |
Allowance for credit losses on PCD loans at acquisition | 2,927.9 |
Fair value of receivables at acquisition | 41,003.0 |
Non-credit discount/(premium) on PCD loans at acquisition | ₨ 30.7 |

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