DISCONTINUED OPERATIONS - Financial Results (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		$ 1,245		$ 2,358
Cost of sales		782		1,513
SG&A		127		277
Gain on sale of business		(3)		(2,783)
Other deductions, net		35		79
Earnings before income taxes		304		3,272
Income taxes	$ 0	39	$ 0	1,005
Earnings, net of tax	$ 0	265	$ 0	2,267
Climate Technologies
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		1,245		2,309	$ 5,000
Cost of sales		782		1,484
SG&A		127		269
Gain on sale of business		0		0
Other deductions, net		35		67
Earnings before income taxes		301		489
Income taxes		39		352
Earnings, net of tax		262		137
ISE
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		0		49
Cost of sales		0		29
SG&A		0		8
Gain on sale of business		(3)		(2,783)
Other deductions, net		0		12
Earnings before income taxes		3		2,783
Income taxes		0		653
Earnings, net of tax		$ 3		$ 2,130