XML 101 R91.htm IDEA: XBRL DOCUMENT
v3.21.2

Troubled Debt Restructurings Modifications (Detail) - INR (₨) ₨ in Millions | 12 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2021
Retail Loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
TDR modifications carrying value |  |  | ₨ 0.0
Retail Loans | Retail Business Banking |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
TDR modifications carrying value | [1] | ₨ 964.1 |
Balance of Principal Forgiven | [1] | 0.0 |
Net P&L impact | [1],[2] | 43.1 |
Commercial vehicle and construction equipment finance |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
TDR modifications carrying value |  | 0.0 |
Balance of Principal Forgiven |  | 0.0 |
Net P&L impact | [2] | 0.0 |
Wholesale loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
TDR modifications carrying value |  | 0.0 |
Balance of Principal Forgiven |  | 0.0 |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Principal Payments | Retail Loans | Retail Business Banking |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
TDR modifications carrying value | [3] | 0.0 |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Principal Payments | Commercial vehicle and construction equipment finance |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
TDR modifications carrying value | [3] | 0.0 |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Principal Payments | Wholesale loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
TDR modifications carrying value | [3] | 0.0 |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Interest Payments | Retail Loans | Retail Business Banking |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
TDR modifications carrying value | [1],[4] | 964.1 |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Interest Payments | Commercial vehicle and construction equipment finance |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
TDR modifications carrying value | [4] | 0.0 |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Interest Payments | Wholesale loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
TDR modifications carrying value | [4] | 0.0 |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Principal and Interest Payments | Retail Loans | Retail Business Banking |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
TDR modifications carrying value |  | 0.0 |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Principal and Interest Payments | Commercial vehicle and construction equipment finance |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
TDR modifications carrying value |  | 0.0 |
Financing Receivable Troubled Debt Restructurings Changes in Amount of Principal and Interest Payments | Wholesale loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
TDR modifications carrying value |  | ₨ 0.0 |
[1] | TDR modification during the year ended March 31, 2020 comprised of 13 cases.
[2] | Balances reflect charge-offs and/or allowance for credit losses and/or income not recognized/deferred.
[3] | TDRs involving changes in the amount of principal payment may include principal forgiveness or deferral of periodic and/or final principal payments.
[4] | TDRs involving changes in the amount of interest payments may involve a reduction in interest rate.

X
- Definition Amount of increase (decrease) in allowance for credit loss on financing receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of financing receivable modified as troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reflects the amount of the write-down related to a troubled debt restructuring. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hdb_RetailBusinessBankingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=hdb_CommercialVehicleAndConstructionEquipmentFinanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=hdb_FinancingReceivableTroubledDebtRestructuringsChangesInAmountOfPrincipalPaymentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=hdb_FinancingReceivableTroubledDebtRestructuringsChangesInAmountOfInterestPaymentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=hdb_FinancingReceivableTroubledDebtRestructuringsChangesInAmountOfPrincipalAndInterestPaymentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |