ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Accumulated other comprehensive income [Roll Forward]
Stockholders' equity, beginning balance			$ 26,598
Other comprehensive income (loss), net of tax	$ (142)	$ 77	16	$ 418
Stockholders' equity, ending balance	26,688	26,413	26,688	26,413
Accumulated other comprehensive income (loss)
Accumulated other comprehensive income [Roll Forward]
Stockholders' equity, beginning balance	(1,097)	(1,148)	(1,253)	(1,485)
Stockholders' equity, ending balance	(1,237)	(1,072)	(1,237)	(1,072)
Foreign currency translation
Accumulated other comprehensive income [Roll Forward]
Stockholders' equity, beginning balance	(834)	(918)	(1,012)	(1,265)
Other comprehensive income (loss), net of tax	(122)	(10)	33	337
Reclassification of (gain) loss on sale of business	0	95	23	95
Stockholders' equity, ending balance	(956)	(833)	(956)	(833)
Other comprehensive income (loss), tax	(6)	3	6	35
Pension and postretirement
Accumulated other comprehensive income [Roll Forward]
Stockholders' equity, beginning balance	(271)	(255)	(247)	(222)
Other comprehensive income (loss), net of tax	(12)	(12)	(36)	(45)
Reclassification of (gain) loss on sale of business	0	22	0	22
Stockholders' equity, ending balance	(283)	(245)	(283)	(245)
Other comprehensive income (loss), tax	2	6	6	13
Cash flow hedges
Accumulated other comprehensive income [Roll Forward]
Stockholders' equity, beginning balance	8	25	6	2
Other comprehensive income (loss), net of tax	(4)	7	3	34
Reclassification of (gain) loss on sale of business	0	(19)	0	(19)
Reclassification of realized (gains) losses to sales and cost of sales, net of tax of $1, $1, $3 and $2, respectively	(2)	(7)	(7)	(11)
Stockholders' equity, ending balance	2	6	2	6
Other comprehensive income (loss), tax	1	(2)	(1)	(11)
Reclassification of (gains) losses to sales and cost of sales, tax	$ 1	$ 1	$ 2	$ 3