Income Tax (Tables)

6 Months Ended

Mar. 31, 2024

Income Tax Disclosure [Abstract]

Effective Tax Rate

Effective Tax Rate

	Three Months Ended March 31						Six Months Ended March 31
	2024			2023			2024			2023
	(Dollars in millions)
(Provision) benefit for income taxes	$	(47	)	$	(29	)	$	(81	)	$	(49	)
Effective tax rate		33	%		26	%		34	%		25	%