OTHER DEDUCTIONS, NET (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Other Income and Expenses [Abstract]
Amortization of intangibles (intellectual property and customer relationships)	$ 229	$ 273	$ 457	$ 547
Restructuring costs	21	30	32	113
Acquisition/divestiture fees and related costs	144	5	157	85
Foreign currency transaction (gains) losses	41	17	42	51
Loss on divestiture of business	0	39	0
Other	(17)	(34)	(42)	(54)
Total	$ 418	$ 330	$ 646	$ 781