XML 79 R68.htm IDEA: XBRL DOCUMENT v3.19.2

Summary of Significant Accounting Policies - Additional Information (Detail)
₨ in Millions, $ in Millions

12 Months Ended

Apr. 01, 2018

INR (₨)

Mar. 31, 2019

INR (₨)

Segment

Mar. 31, 2019

USD ($)

Mar. 31, 2018

INR (₨)

Significant Accounting Policies [Line Items]

Percentage of minimum tax benefit likely of being realized upon settlement

50.00%

Reportable segments | Segment

3

Adoption of accounting standards

₨ 0.0

Equity securities, fair value

^[1],[2]

₨ 559.3

Future minimum lease payments

₨ 85,892.8

$ 1,242.0

Financial statements translation rate, Indian rupees (Rs.) equivalence of U.S. $1

69.16

69.16

ASU 2016-01

Significant Accounting Policies [Line Items]

Adoption of accounting standards

₨ 268.0

Cumulative catch-up reclassification from AOCI to retained earnings of an accumulated gross gain

412.0

Equity securities, fair value

₨ 1,267.7

Retail Loans | Personal Loans, Credit Card Receivables, Auto Loans, Commercial Vehicle and Construction Equipment Finance

Significant Accounting Policies [Line Items]

Loans charge off period

180 days

180 days

Retail Loans | Housing loans

Significant Accounting Policies [Line Items]

Loans charge off period

720 days

720 days

Retail Loans | Retail Business Banking

Significant Accounting Policies [Line Items]

Loans charge off period

Customer by customer basis

Minimum

Significant Accounting Policies [Line Items]

Bank voting rights

20.00%

20.00%

Minimum | Retail Loans

Significant Accounting Policies [Line Items]

Loans charge off period

180 days

180 days

Maximum

Significant Accounting Policies [Line Items]

Bank voting rights

50.00%

50.00%

Maximum | Retail Loans

Significant Accounting Policies [Line Items]

Loans charge off period

1083 days

1083 days

[1]	Effective April 1, 2018, the Bank adopted ASU 2016-01 (See note 2(w)(ii) to the Consolidated Financial Statements for additional details).
[2]	Equity securities classified within other assets.

X

- Definition

Loans Charge Off Description

+ References

No definition available.

+ Details

Name:	hdb_LoansChargeOffDescription
Namespace Prefix:	hdb_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Minimum percentage of tax benefit likely of being realized upon settlement.

+ References

No definition available.

+ Details

Name:	hdb_MinimumPercentageOfTaxBenefitLikelyOfBeingRealizedUponSettlement
Namespace Prefix:	hdb_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification Gross

+ References

No definition available.

+ Details

Name:	hdb_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantificationGross
Namespace Prefix:	hdb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Significant Accounting Policies [Line Items]

+ References

No definition available.

+ Details

Name:	hdb_SignificantAccountingPoliciesLineItems
Namespace Prefix:	hdb_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740

+ Details

Name:	us-gaap_EquitySecuritiesFvNi
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Threshold period for when financing receivable is considered past due to write off as uncollectible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919253-210447

+ Details

Name:	us-gaap_FinancingReceivableThresholdPeriodPastDueWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521

+ Details

Name:	us-gaap_ForeignCurrencyExchangeRateTranslation1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the quantification of the effect of adopting the new accounting standard or change in accounting principle expected by the entity to have a significant effect on the entity's financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717

Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 55
-Paragraph 40
-Subparagraph (Note 3)
-URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697

+ Details

Name:	us-gaap_OperatingLeasesFutureMinimumPaymentsDue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201601Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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_PersonalLoansCreditCardFinancingReceivablesAutoLoansCommercialVehicleAndConstructionEquipmentFinanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityLoanMember
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:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: