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Acquisitions and Divestitures (Details) - Silent Aire Acquisition - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Jun. 30, 2021 | Sep. 30, 2020
Acquisitions And Divestitures [Line Items] |  |
Goodwill | $ 18,445 | $ 17,932
Global Products |  |
Acquisitions And Divestitures [Line Items] |  |
Goodwill | 5,886 | $ 5,579
Silent-Aire |  |
Acquisitions And Divestitures [Line Items] |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents | 5 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables | 141 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory | 61 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | 3 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | 33 |
Goodwill | 235 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | 499 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets | 83 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | 1,060 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable | 62 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accrued Compensation and Benefits | 5 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue | 32 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | 10 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other | 195 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | 304 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 756 |
Silent-Aire | Trademarks/trade names |  |
Acquisitions And Divestitures [Line Items] |  |
Indefinite-lived Intangible Assets | 77 |
Silent-Aire | Customer Relationships |  |
Acquisitions And Divestitures [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 275 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 19 years |
Silent-Aire | Technology-Based Intangible Assets |  |
Acquisitions And Divestitures [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 126 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 13 years |
Silent-Aire | Miscellaneous |  |
Acquisitions And Divestitures [Line Items] |  |
Finite-lived Intangible Assets Acquired | $ 21 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 1 year |

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