Contingencies (Tables)

6 Months Ended

Mar. 31, 2022

Commitments and Contingencies Disclosure [Abstract]

Schedule of Environmental Reserves

The following are the components of the Superfund and non-Superfund environmental reserves (in millions):

	Superfund Sites		Non-Superfund Sites		Total
Beginning Balance at September 30, 2021	$	9	$	4	$	13
Payments and other	(1)		—		(1)
Accruals	—		—		—
Ending Balance at March 31, 2022	$	8	$	4	$	12