Business Segment Information - Schedule of Depreciation and Amortization for Reportable Segments and Corporate (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Segment Reporting Information [Line Items]
Amortization of acquisition-related intangible assets	$ 29	$ 36	$ 61	$ 71
Total	79	81	158	159
Operating Segments
Segment Reporting Information [Line Items]
Total	50	45	97	88
Operating Segments \| Intelligent Devices
Segment Reporting Information [Line Items]
Total	20	14	37	32
Operating Segments \| Software & Control
Segment Reporting Information [Line Items]
Total	19	19	39	33
Operating Segments \| Lifecycle Services
Segment Reporting Information [Line Items]
Total	10	11	19	21
Corporate
Segment Reporting Information [Line Items]
Total	$ 1	$ 1	$ 2	$ 2

- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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