Major Class of Identifiable Acquired Intangible Assets and Estimated Period of Amortisation (Detail) - Jul. 01, 2023 ₨ in Millions, $ in Millions	INR (₨)	USD ($)
Finite-Lived Intangible Assets [Line Items]
Total	₨ 1,434,818.1	$ 17,216.4
Brand [Member] \| Relief from royalty method [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	₨ 750,758.2	9,008.4
Valuation Methodology	Relief from royalty method
Investment management contract [Member] \| Multi-period excess earnings method [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	₨ 369,785.6	4,437.1
Valuation Methodology	Multi-period excess earnings method
Value of business acquired [Member] \| Refer below [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	₨ 221,738.5	2,660.6
Valuation Methodology	Refer below
Distribution network [Member] \| Multi-period excess earnings method [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	₨ 59,543.2	714.5
Useful lives (in years)	17 years
Valuation Methodology	Multi-period excess earnings method
Customer relationship [Member] \| Multi-period excess earnings method [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	₨ 29,874.9	358.4
Useful lives (in years)	17 years
Valuation Methodology	Multi-period excess earnings method
Transferable development rights [Member] \| Comparison method [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	₨ 3,117.7	$ 37.4
Useful lives (in years)	8 years
Valuation Methodology	Comparison method

Finite and indefinite lived intangible assets at fair value.

No definition available.

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- Definition

Finite lived intangible assets description of valuation methodology.

+ References

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Indefinite lived intangible assets description of valuation methodology.

+ References

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- Definition

Weighted average period before the next renewal or extension (both explicit and implicit) for intangible assets that have been renewed or extended, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-SubTopic 30
-Topic 350
-Publisher FASB
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- Definition

Fair value portion of assets, excluding financial assets, that lack physical substance, having a limited useful life.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 926
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483154/926-20-50-5

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- Definition

Fair value portion of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit.

+ References

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