OTHER FINANCIAL INFORMATION - Schedule of Depreciation and Amortization components (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Other Financial Information [Abstract]
Depreciation expense	$ 83	$ 79	$ 166	$ 158
Amortization of intangibles (includes $49, $49, $98 and $99 reported in Cost of Sales, respectively)	278	322	556	645
Amortization of capitalized software	23	23	45	43
Total	384	424	767	846
Amortization of intangibles in cost of sales	$ 49	$ 49	$ 99	$ 98