EQUITY METHOD INVESTMENT AND NOTE RECEIVABLE - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	May 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Schedule of Equity Method Investments [Line Items]
Loss on Copeland equity method investment		$ 59	$ 0	$ 95	$ 0
Income tax benefit		(149)	(134)	(156)	(232)
Interest income		33	$ 18	73	$ 38
Copeland
Schedule of Equity Method Investments [Line Items]
Loss on Copeland equity method investment		59		95
Income tax benefit		$ 13		$ 22
Loss from equity method investment (in dollars per share)		$ 0.08		$ 0.12
Equity method investment		$ 1,036		$ 1,036
Notes receivable		2,155		2,155
Copeland | Related Party
Schedule of Equity Method Investments [Line Items]
Interest income		$ 31		$ 62
Copeland
Schedule of Equity Method Investments [Line Items]
Noncontrolling interest, ownership percentage by parent	40.00%
Copeland
Schedule of Equity Method Investments [Line Items]
Proceeds from divestiture	$ 9,700
Notes receivable, consideration	$ 2,250