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Goodwill and Intangible Assets - Changes in Goodwill for Each Reportable Segment (Detail) $ in Millions	3 Months Ended
	Dec. 31, 2023 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 1,993
Acquisitions	3
Other adjustments	19
Ending balance	2,015
Recorded Music
Goodwill [Roll Forward]
Beginning balance	1,529
Acquisitions	3
Other adjustments	19
Ending balance	1,551
Music Publishing
Goodwill [Roll Forward]
Beginning balance	464
Acquisitions	0
Other adjustments	0
Ending balance	$ 464

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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X

- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
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X

- Definition

Amount of increase (decrease), classified as other, of an asset representing the future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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X

- Details

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