Long-term and Short-term Debt (Tables)

12 Months Ended

Sep. 30, 2025

Debt Disclosure [Abstract]

Schedule of Debt

Long-term debt consists of (in millions):

	September 30,
	2025		2024
2.875% notes, payable in March 2025	$	—	$	302
6.70% debentures, payable in January 2028	250		250
3.50% notes, payable in March 2029	425		425
1.75% notes, payable in August 2031	450		450
6.25% debentures, payable in December 2037	250		250
4.20% notes, payable in March 2049	575		575
2.80% notes, payable in August 2061	450		450
5.20% debentures, payable in January 2098	200		200
Sensia loans from SLB, payable in October 2026	42		—
Unamortized discount, capitalized lease obligations and other	(26)		(34)
Total debt	2,616		2,868
Less: Current portion	(2)		(307)
Long-term debt	$	2,614	$	2,561

Schedule of Fair Value of Long-term Debt

The following table presents the carrying amounts and estimated fair values of Long-term debt in the Consolidated Balance Sheet (in millions):

	September 30, 2025				September 30, 2024
	Carrying Value		Fair Value		Carrying Value		Fair Value
Current portion of long-term debt	$	2	$	2	$	307	$	305
Long-term debt	2,614		2,350		2,561		2,334