Increase Decrease In Deferred Tax Asset

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- Definition

Increase Decrease In Retained Earnings.

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No definition available.

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Loans Charge Off Description

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- Definition

Significant Accounting Policies [Line Items]

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No definition available.

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- Definition

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

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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)
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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.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 14
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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section S99
-Paragraph 1
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-Topic 830
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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
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- 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.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599

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The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership.

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Summary of Significant Accounting Policies - Additional Information (Detail) ₨ in Millions		12 Months Ended
	Apr. 01, 2020 INR (₨)	Mar. 31, 2021 Segment	Mar. 31, 2020
Significant Accounting Policies [Line Items]
Reportable segments \| Segment		3
Financial statements translation rate, Indian rupees (Rs.) equivalence of U.S. $1		73.14
Impact of ASC 326 Adoption
Significant Accounting Policies [Line Items]
Increase decrease in retained earnings	₨ 62,480.4
Increase decrease in deferred tax asset	21,016.0
Loans and leases receivable, gross	₨ 83,496.4
Retail Loans \| Personal Loans, Credit Card Receivables, Auto Loans, Commercial Vehicle and Construction Equipment Finance
Significant Accounting Policies [Line Items]
Loans charge off period			150 days
Retail Loans \| Housing loans
Significant Accounting Policies [Line Items]
Loans charge off period			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%
Minimum \| Retail Loans
Significant Accounting Policies [Line Items]
Loans charge off period			150 days
Maximum
Significant Accounting Policies [Line Items]
Bank voting rights		50.00%
Maximum \| Retail Loans
Significant Accounting Policies [Line Items]
Loans charge off period			1083 days
HDFC Group [Member] \| Minimum
Significant Accounting Policies [Line Items]
Percentage of voting rights in which bank consolidates subsidiary		50.00%