Financial Instruments (Tables)

6 Months Ended

Mar. 31, 2022

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Fair Value of Financial Instruments

Fair values of financial instruments are summarized as follows (in millions):

	March 31, 2022				September 30, 2021
	Carrying Value		Fair Value		Carrying Value		Fair Value
Cash and cash equivalents	$	115	$	115	$	101	$	101
Short-term debt	114		114		19		19
Long-term debt	1,025		1,083		1,008		1,082
Foreign exchange forward contracts (other assets)	1		1		1		1

Schedule of Offsetting Assets

The following table reflects the offsetting of derivative assets (in millions):

	March 31, 2022			September 30, 2021
	Gross Amounts Recognized	Gross Amounts Offset	Net Amounts Reported	Gross Amounts Recognized	Gross Amounts Offset	Net Amounts Reported
Derivative Assets
Foreign exchange forward contracts	1	—	1	1	—	1

Schedule of Fair Value of Financial Instruments by Valuation Hierarchy

Fair value of financial instruments by the valuation hierarchy at March 31, 2022 is as follows (in millions):

	Level 1		Level 2		Level 3
Cash and cash equivalents	$	115	$	—	$	—
Short-term debt	—		95		19
Long-term debt	—		945		138
Foreign exchange forward contracts (other assets)	—		1		—

Fair value of financial instruments by the valuation hierarchy at September 30, 2021 is as follows (in millions):

	Level 1		Level 2		Level 3
Cash and cash equivalents	$	101	$	—	$	—
Short-term debt	—		—		19
Long-term debt	—		937		145
Foreign exchange forward contracts (other assets)	—		1		—