Acquisitions And Discontinued Operations [Line Items]

No definition available.

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- Definition

Number of businesses 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.

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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

Fair value at acquisition-date of the equity interest in the acquiree held by the acquirer, immediately before the acquisition date for businesses combined in stages.

+ References

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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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- Definition

Reduction in cash due to no longer including the former subsidiary's cash in the consolidated entity's cash.

+ References

+ 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.

+ References

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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
-Publisher FASB
-Name Accounting Standards Codification
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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

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- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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- Definition

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

+ References

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Acquisitions and Divestitures - Additional Information (Detail)		3 Months Ended		6 Months Ended
	Sep. 02, 2016 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2015 USD ($)	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($) Acquisition
Acquisitions And Discontinued Operations [Line Items]
Purchase price, net of cash acquired	$ 19,671,000,000
Cash paid for business acquisition				$ 6,000,000	$ 133,000,000
Goodwill recorded in connection with business acquisitions				51,000,000
Adjustment to purchase price of previous acquisition				37,000,000	0
Reduction in goodwill related to business divestitures				1,261,000,000
Business divestitures				180,000,000	$ 40,000,000
Business Divestitures, Not Specific [Member]
Acquisitions And Discontinued Operations [Line Items]
Business divestitures				$ 52,000,000
Number Of Businesses Divested				1
Proceeds from Divestiture of Businesses				$ 4,000,000
Cash Divested from Deconsolidation				$ 5,000,000
Individually Immaterial Acquisitions
Acquisitions And Discontinued Operations [Line Items]
Number of acquisitions				3	1
Purchase price, net of cash acquired				$ 9,000,000	$ 0
Cash paid for business acquisition				6,000,000	3,000,000
Goodwill recorded in connection with business acquisitions				2,000,000	4,000,000
Buildings Tyco [Member] \| Scott Safety business [Member]
Acquisitions And Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses		$ 2,000,000,000
Buildings Tyco [Member] \| Scott Safety business [Member] \| Minimum [Member]
Acquisitions And Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses		1.8
Buildings Tyco [Member] \| Scott Safety business [Member] \| Maximum [Member]
Acquisitions And Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses		1,900,000,000
Buildings Tyco [Member] \| ADT security business in South Africa [Member]
Acquisitions And Discontinued Operations [Line Items]
Reduction in goodwill related to business divestitures		92,000,000
Proceeds from Divestiture of Businesses		$ 129,000,000
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			$ 170,000,000	37,000,000	133,000,000
Purchase Price of Joint Venture			600,000,000
Cash Acquired from Acquisition			430,000,000
Goodwill recorded in connection with business acquisitions			$ 253,000,000
Building Efficiency Rest of World [Member] \| Individually Immaterial Acquisitions
Acquisitions And Discontinued Operations [Line Items]
Step acquisition, non-cash gain in equity interest in acquiree					$ 4,000,000
Power Solutions
Acquisitions And Discontinued Operations [Line Items]
Goodwill recorded in connection with business acquisitions				0
Reduction in goodwill related to business divestitures				$ 0