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No definition available.

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- Definition

Number of Reporting Units Excluded From Qualitative Assessment

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No definition available.

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- Definition

Reporting Unit, Increase (Decrease) in Measurement Input

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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- Definition

Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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- Definition

Indicates line item in statement of income or comprehensive income that includes impairment of finite-lived intangible asset.

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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- Definition

Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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- Definition

Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit.

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- Definition

Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

+ References

No definition available.

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Goodwill and Other Intangible Assets - Narrative (Details)	3 Months Ended			12 Months Ended
	Sep. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) reportingUnits	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Jul. 31, 2024 USD ($)
Intangible Assets [Line Items]
Reporting units excluded \| reportingUnits				1
Reporting units \| reportingUnits				1
Goodwill	$ 16,725,000,000		$ 16,772,000,000	$ 16,725,000,000	$ 16,772,000,000	$ 16,175,000,000
Goodwill impairment loss		$ 230,000,000		230,000,000	184,000,000
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]	Additional restructuring and related costs
Indefinite-lived trademarks							$ 335,000,000
Amortization of intangible assets				476,000,000	426,000,000	413,000,000
Global Products
Intangible Assets [Line Items]
Impairment of intangible assets, finite-lived	$ 32,000,000
Impairment of intangible assets, indefinite-lived			18,000,000
Building Solutions Asia Pacific
Intangible Assets [Line Items]
Goodwill	1,227,000,000		1,179,000,000	1,227,000,000	1,179,000,000	1,116,000,000
Goodwill impairment loss				0	0
Impairment of intangible assets, finite-lived	13,000,000
Impairment of intangible assets, indefinite-lived			10,000,000
Building Solutions North America
Intangible Assets [Line Items]
Goodwill	9,391,000,000		9,381,000,000	9,391,000,000	9,381,000,000	8,971,000,000
Goodwill impairment loss				0	0
Silent-Aire
Intangible Assets [Line Items]
Goodwill	0		0	0	0
Goodwill impairment loss					184,000,000	75,000,000
North America Retail
Intangible Assets [Line Items]
Goodwill	$ 0		$ 0	$ 0	$ 0
Goodwill impairment loss						$ 235,000,000
Reporting Unit With Quantitative Goodwill Impairment Test
Intangible Assets [Line Items]
Goodwill							$ 214,000,000
Reporting Unit With Quantitative Goodwill Impairment Test \| Measurement Input, Discount Rate
Intangible Assets [Line Items]
Increase (decrease) in measurement input							2.00%
Reporting Unit With Quantitative Goodwill Impairment Test \| Measurement Input, Long-Term Revenue Growth Rate
Intangible Assets [Line Items]
Increase (decrease) in measurement input							2.00%