Segment Information - Schedule of Components of Adjusted OIBDA to Operating Income (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting [Abstract]
Operating income	$ 119	$ 124	$ 473	$ 389
Amortization expense	57	61	112	124
Depreciation expense	26	22	52	43
Restructuring and impairments	95	41	95	41
Transformation initiatives and other related costs	19	14	38	26
Executive transition costs	0	3	0	3
Net loss (gain) on divestitures	(14)	0	(31)	(41)
Non-cash stock-based compensation and other related costs	10	21	24	36
Adjusted OIBDA	$ 312	$ 286	$ 763	$ 621

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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Executive Transition Costs

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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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