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Acquisitions and Divestitures - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 31, 2018 | Mar. 31, 2020 | Mar. 31, 2019 | Jun. 30, 2019
Acquisitions And Discontinued Operations [Line Items] |  |  |  |
Purchase price, net of cash acquired | $ 13 | $ 61 |  |
Cash paid for business acquisition |  | 58 | $ 13 |
Goodwill, Acquired During Period |  | 39 |  |
Business divestitures, net of cash divested |  | 0 | 6 |
Power Solutions |  |  |  |
Acquisitions And Discontinued Operations [Line Items] |  |  |  |
Proceeds from Divestiture of Businesses |  |  |  | $ 13,200
Business Divestitures, Not Specific [Member] |  |  |  |
Acquisitions And Discontinued Operations [Line Items] |  |  |  |
Proceeds from Divestiture of Businesses |  |  | 18 |
Business divestitures, net of cash divested |  |  | 6 |
Global Products | Individually Immaterial Acquisitions |  |  |  |
Acquisitions And Discontinued Operations [Line Items] |  |  |  |
Goodwill, Acquired During Period | $ 9 | 19 |  |
Building Solutions EMEA/LA |  |  |  |
Acquisitions And Discontinued Operations [Line Items] |  |  |  |
Goodwill, Written off Related to Sale of Business Unit |  |  | $ 1 |
Building Solutions EMEA/LA | Individually Immaterial Acquisitions |  |  |  |
Acquisitions And Discontinued Operations [Line Items] |  |  |  |
Goodwill, Acquired During Period |  | $ 20 |  |

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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + 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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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