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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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- Definition

Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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This element represents the cash inflow during the period from the sale of a component of the entity.

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Acquisitions and Divestitures - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2020
Acquisitions And Divestitures [Line Items]
Cash paid for business acquisition		$ 707	$ 59
Goodwill, Acquired During Period		273
Business divestitures, net of cash divested		19	0
Goodwill, Written off Related to Sale of Business Unit		7
Building Solutions EMEA/LA
Acquisitions And Divestitures [Line Items]
Goodwill, Acquired During Period		21
Goodwill, Written off Related to Sale of Business Unit		0
Building Solutions Asia Pacific
Acquisitions And Divestitures [Line Items]
Goodwill, Acquired During Period		0
Goodwill, Written off Related to Sale of Business Unit		7
Global Products
Acquisitions And Divestitures [Line Items]
Goodwill, Acquired During Period		235
Goodwill, Written off Related to Sale of Business Unit		0
Building Solutions North America
Acquisitions And Divestitures [Line Items]
Goodwill, Acquired During Period		17
Goodwill, Written off Related to Sale of Business Unit		0
Business Divestitures, Not Specific \| Building Solutions Asia Pacific
Acquisitions And Divestitures [Line Items]
Proceeds from Divestiture of Businesses	$ 27	27
Business divestitures, net of cash divested		19
Goodwill, Written off Related to Sale of Business Unit		7
Silent-Aire
Acquisitions And Divestitures [Line Items]
Purchase price, net of cash acquired	751
Cash paid for business acquisition	661
Business Combination, Contingent Consideration, Liability	90	90
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	250	250
Silent-Aire \| Global Products
Acquisitions And Divestitures [Line Items]
Goodwill, Acquired During Period	$ 235
Individually Immaterial Acquisitions
Acquisitions And Divestitures [Line Items]
Purchase price, net of cash acquired		58	63
Cash paid for business acquisition		46	59
Individually Immaterial Acquisitions \| Building Solutions EMEA/LA
Acquisitions And Divestitures [Line Items]
Goodwill, Acquired During Period		21	23
Individually Immaterial Acquisitions \| Global Products
Acquisitions And Divestitures [Line Items]
Goodwill, Acquired During Period			$ 19
Individually Immaterial Acquisitions \| Building Solutions North America
Acquisitions And Divestitures [Line Items]
Goodwill, Acquired During Period		$ 17