Product Warranty Obligations (Tables)

12 Months Ended

Sep. 30, 2025

Product Warranties Disclosures [Abstract]

Changes in Product Warranty Obligations

Changes in product warranty obligations were (in millions):

	September 30,
	2025		2024
Beginning balance	$	24	$	18
Warranties recorded at time of sale	20		17
Adjustments to pre-existing warranties	(2)		10
Settlements of warranty claims	(19)		(21)
Ending balance	$	23	$	24