Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Sep. 30, 2023
Definite-lived intangible assets
Gross Carrying Amount	$ 5,584	$ 5,511
Accumulated Amortization	(2,882)	(2,737)
Net	2,702	2,774
Indefinite-lived intangible assets
Gross Carrying Amount	7,717	7,625
Net	4,835	4,888
Trademarks/trade names
Definite-lived intangible assets
Accumulated Amortization	0	0
Indefinite-lived intangible assets
Gross Carrying Amount	2,133	2,114
Technology
Definite-lived intangible assets
Gross Carrying Amount	1,587	1,575
Accumulated Amortization	(849)	(806)
Net	738	769
Customer relationships
Definite-lived intangible assets
Gross Carrying Amount	3,076	3,047
Accumulated Amortization	(1,571)	(1,496)
Net	1,505	1,551
Miscellaneous
Definite-lived intangible assets
Gross Carrying Amount	921	889
Accumulated Amortization	(462)	(435)
Net	$ 459	$ 454

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

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