Intangible Assets, net (Details) - USD ($) $ in Millions	Dec. 31, 2024	Sep. 30, 2024
Finite-Lived Intangible Assets
Finite-Lived Intangible Assets, Gross	$ 3,751.1	$ 3,521.6
Finite-Lived Intangible Assets, Accumulated Amortization	(1,476.3)	(1,432.5)
Finite-Lived Intangible Assets, Net	2,274.8	2,089.1
Intangible Assets, Net (Excluding Goodwill)
Carrying amount, total	4,546.9	4,578.5
Other intangible assets, net	3,070.6	3,146.0
Indefinite-lived intangible reclassification	$ 243.9
Finite-Lived Intangible Asset, Useful Life	20 years
Trademarks and brands
Indefinite-Lived Intangible Assets (Excluding Goodwill)
Carrying amount	$ 795.8	1,056.9
Customer Relationships
Finite-Lived Intangible Assets
Finite-Lived Intangible Assets, Gross	2,621.3	2,633.3
Finite-Lived Intangible Assets, Accumulated Amortization	(1,114.5)	(1,084.1)
Finite-Lived Intangible Assets, Net	1,506.8	1,549.2
Trademarks and brands
Finite-Lived Intangible Assets
Finite-Lived Intangible Assets, Gross	1,129.8	888.3
Finite-Lived Intangible Assets, Accumulated Amortization	(361.8)	(348.4)
Finite-Lived Intangible Assets, Net	$ 768.0	$ 539.9

The amount of Indefinite-lived intangible assets reclassified as an definite-lived intangible asset

No definition available.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Amount before accumulated amortization of intangible assets, excluding goodwill.

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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