Acquisitions And Discontinued Operations [Line Items]

No definition available.

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- Definition

Number of Joint Ventures Divested

+ References

No definition available.

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- Definition

The purchase price associated with the formation of a joint venture.

+ References

No definition available.

+ Details

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- Definition

The sales price associated with business divestitures.

+ References

No definition available.

+ Details

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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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

In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.

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- Definition

The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

+ References

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Period Type:	duration

- Definition

Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

+ References

+ Details

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- Definition

Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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- Definition

Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment.

+ References

No definition available.

+ Details

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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 increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the 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

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 number of businesses acquired by the entity during the period.

+ References

No definition available.

+ Details

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- Definition

The net cash inflow or outflow associated with the aggregate amount of adjustment to the purchase price of a previous acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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- Definition

The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group.

+ References

+ Details

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- Definition

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

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- Definition

The cash inflow from the sale of an investment interest in a joint venture that the reporting entity has not previously accounted for using consolidation or the equity method of accounting.

+ References

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Acquisitions and Divestitures - Additional Information (Detail) $ in Millions	3 Months Ended					9 Months Ended		12 Months Ended
	Jun. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)
Acquisitions And Discontinued Operations [Line Items]
Cash paid for business acquisition	$ 0			$ 0		$ 133	$ 22
Goodwill recorded in connection with business acquisitions			$ 0			265
Fair value adjustment of equity investment	0			0		4	0
Reduction in goodwill related to business divestitures			7			3
Proceeds from Divestiture of Businesses, Net of Cash Divested	14			0		54	141
Gain on divestitures	14			0		14	200
Business Divestitures, Not Specific [Member]
Acquisitions And Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses, Net of Cash Divested						$ 40
Global Workplace Solutions
Acquisitions And Discontinued Operations [Line Items]
Income from discontinued operations before income taxes				$ 14			$ 283
Individually Immaterial Acquisitions
Acquisitions And Discontinued Operations [Line Items]
Number of acquisitions						1	3
Purchase price, net of cash acquired						$ 3	$ 47
Cash paid for business acquisition						0	18
Goodwill recorded in connection with business acquisitions						5	9
Air Distribution Technologies, Inc.
Acquisitions And Discontinued Operations [Line Items]
Adjustment to purchase price of previous acquisition							$ 4
Goodwill adjustment related to previous acquisition								$ 34
Building Efficiency Asia
Acquisitions And Discontinued Operations [Line Items]
Goodwill recorded in connection with business acquisitions			0			260
Reduction in goodwill related to business divestitures			0			0
Building Efficiency Asia \| Hitachi Joint Venture [Member]
Acquisitions And Discontinued Operations [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired		60.00%
Payments to Acquire Interest in Joint Venture		$ 133
Purchase Price of Joint Venture		563
Cash Acquired from Acquisition		$ 430
Goodwill recorded in connection with business acquisitions						260
Global Workplace Solutions \| Brookfield Johnson Controls
Acquisitions And Discontinued Operations [Line Items]
Number Of Joint Ventures Divested					2		2
Reduction in goodwill related to business divestitures					$ 20
Proceeds from Divestiture of Interest in Joint Venture					141
Income from discontinued operations before income taxes					200		$ 200
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax					$ 127
Building Efficiency Rest of World [Member]
Acquisitions And Discontinued Operations [Line Items]
Goodwill recorded in connection with business acquisitions			0			5
Reduction in goodwill related to business divestitures			0			0
Building Efficiency Rest of World [Member] \| Individually Immaterial Acquisitions
Acquisitions And Discontinued Operations [Line Items]
Fair value adjustment of equity investment						4
Building Efficiency Systems and Service North America
Acquisitions And Discontinued Operations [Line Items]
Goodwill recorded in connection with business acquisitions			0			0
Sales price of divestiture	16
Reduction in goodwill related to business divestitures	3		0			3
Proceeds from Divestiture of Businesses, Net of Cash Divested	14
Gain on divestitures	$ 14
Power Solutions
Acquisitions And Discontinued Operations [Line Items]
Goodwill recorded in connection with business acquisitions			0			0
Reduction in goodwill related to business divestitures			0			0
Building Efficiency Products North America
Acquisitions And Discontinued Operations [Line Items]
Goodwill recorded in connection with business acquisitions			0			0
Reduction in goodwill related to business divestitures			$ 3			$ 0
Building Efficiency Products North America \| Air Distribution Technologies, Inc.
Acquisitions And Discontinued Operations [Line Items]
Goodwill recorded in connection with business acquisitions									$ 837