Segment Information - Schedule of Components of Adjusted OIBDA to Operating Income (Details) - USD ($) $ in Millions	3 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Segment Reporting [Abstract]
Operating income	$ 214	$ 354
Amortization expense	57	55
Depreciation expense	29	26
Restructuring and impairments	27	0
Transformation initiative costs	17	19
Net gain on divestitures	0	(17)
Non-cash stock-based compensation and other related costs	19	14
Adjusted OIBDA	$ 363	$ 451

Amount of expense for allocation of cost of intangible asset over its useful life directly used in production of good and rendering of service.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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The net result for the period of deducting operating expenses from operating revenues.

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Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation.

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Income loss from continuing operations before income taxes depreciation and amortization.

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Non-Cash Stock-Based Compensation and Other Related Costs

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Transformation Initiatives And Other Related Costs

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