Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2020

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class

The Company's intangible assets consist of the following for the periods indicated:

(In millions)	Technology and Patents		Customer Relationships and Other Intangibles		Trademarks and Trade Names		Total
Balance as of March 31, 2020
Finite-lived intangible assets:
Cost	$	960	$	2,150	$	42	$	3,152
Accumulated amortization	(394)		(355)		(16)		(765)
Finite-lived intangible assets, net	566		1,795		26		2,387
Indefinite-lived intangible assets:
Cost	—		—		333		333
Accumulated impairment	—		—		—		—
Indefinite-lived intangible assets, net	—		—		333		333
Intangible assets, net	$	566	$	1,795	$	359	$	2,720
Balance as of September 30, 2019
Finite-lived intangible assets:
Cost	$	960	$	2,154	$	42	$	3,156
Accumulated amortization	(308)		(279)		(11)		(598)
Finite-lived intangible assets, net	652		1,875		31		2,558
Indefinite-lived intangible assets:
Cost	2		—		333		335
Accumulated amortization	(2)		—		—		(2)
Indefinite-lived intangible assets, net	—		—		333		333
Intangible assets, net	$	652	$	1,875	$	364	$	2,891