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Impairment of Long-Lived Assets (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Impairment of Long Lived Assets [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  |  |  | $ 70 | $ 80
2017 Restructuring Plan |  |  |  |  |  |  |
Impairment of Long Lived Assets [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges | $ 31 | $ 23 | $ 15 |  |  | 69 |
2017 Restructuring Plan | Buildings Tyco [Member] |  |  |  |  |  |  |
Impairment of Long Lived Assets [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  |  |  | 27 |
2017 Restructuring Plan | Corporate Segment |  |  |  |  |  |  |
Impairment of Long Lived Assets [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  |  |  | 17 |
2017 Restructuring Plan | Building Efficiency Systems and Service North America |  |  |  |  |  |  |
Impairment of Long Lived Assets [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  |  |  | 1 |
2017 Restructuring Plan | Power Solutions |  |  |  |  |  |  |
Impairment of Long Lived Assets [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  |  |  | 4 |
2017 Restructuring Plan | Building Efficiency Products North America [Member] |  |  |  |  |  |  |
Impairment of Long Lived Assets [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  |  |  | $ 20 |
2016 Restructuring Plan [Member] |  |  |  |  |  |  |
Impairment of Long Lived Assets [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  | $ 50 | $ 15 |  | 65
2016 Restructuring Plan [Member] | Corporate Segment |  |  |  |  |  |  |
Impairment of Long Lived Assets [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  |  |  |  | 50
2016 Restructuring Plan [Member] | Building Efficiency Asia |  |  |  |  |  |  |
Impairment of Long Lived Assets [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  |  |  |  | 4
2016 Restructuring Plan [Member] | Building Efficiency Products North America [Member] |  |  |  |  |  |  |
Impairment of Long Lived Assets [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  |  |  |  | 8
2016 Restructuring Plan [Member] | Building Efficiency Rest of World [Member] |  |  |  |  |  |  |
Impairment of Long Lived Assets [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  |  |  |  | 3
Discontinued Operations | 2016 Restructuring Plan [Member] | Adient |  |  |  |  |  |  |
Impairment of Long Lived Assets [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  |  |  |  | $ 15

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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