XML 59 R48.htm IDEA: XBRL DOCUMENT v3.24.2.u1

Goodwill and Intangible Assets - Additional Information (Details) $ in Millions	9 Months Ended
	Jun. 30, 2024 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Write off of intangible assets	$ 35

X

- References

No definition available.

+ Details

Name:	us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Intangible Assets, Writeoffs

+ References

No definition available.

+ Details

Name:	wmg_IntangibleAssetsWriteoffs
Namespace Prefix:	wmg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration