SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)		1 Months Ended	12 Months Ended
	Jun. 06, 2024	Aug. 31, 2024	Sep. 30, 2025	Sep. 30, 2024	May 31, 2023
Summary Of Accounting Policies [Line Items]
Percentage of revenue from percentage-of-completion accounting method			10.00%
Percentage of revenue from multiple deliverable arrangements			15.00%
Collateral balance posted			$ 0
Collateral held from counterparties			0
Undistributed earnings of non-U.S. subsidiaries			$ 5,300,000,000
Minimum
Summary Of Accounting Policies [Line Items]
Warranty period (in years)			1 year
Maximum
Summary Of Accounting Policies [Line Items]
Warranty period (in years)			2 years
General duration of hedge positions is equal to or less than (in years)			2 years
Product warranty expense, percent of sales, less than			0.50%
Copeland
Summary Of Accounting Policies [Line Items]
Proceeds from sale of equity method investments	$ 1,500,000,000	$ 1,500,000,000
Proceeds from sale of notes receivable		$ 1,900,000,000
Copeland
Summary Of Accounting Policies [Line Items]
Noncontrolling interest, ownership percentage by parent	40.00%		40.00%	40.00%	40.00%