Revenue Recognition - Disaggregation of Revenue by Operating Segment and by Geographic Region (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Disaggregation of Revenue [Line Items]
Sales	$ 2,105	$ 1,881
North America
Disaggregation of Revenue [Line Items]
Sales	1,339	1,150
Europe, Middle East, and Africa
Disaggregation of Revenue [Line Items]
Sales	372	332
Asia Pacific
Disaggregation of Revenue [Line Items]
Sales	255	251
Latin America
Disaggregation of Revenue [Line Items]
Sales	139	148
Intelligent Devices
Disaggregation of Revenue [Line Items]
Sales	953	806
Intelligent Devices | North America
Disaggregation of Revenue [Line Items]
Sales	650	519
Intelligent Devices | Europe, Middle East, and Africa
Disaggregation of Revenue [Line Items]
Sales	141	135
Intelligent Devices | Asia Pacific
Disaggregation of Revenue [Line Items]
Sales	96	86
Intelligent Devices | Latin America
Disaggregation of Revenue [Line Items]
Sales	66	66
Software & Control
Disaggregation of Revenue [Line Items]
Sales	629	529
Software & Control | North America
Disaggregation of Revenue [Line Items]
Sales	430	365
Software & Control | Europe, Middle East, and Africa
Disaggregation of Revenue [Line Items]
Sales	91	73
Software & Control | Asia Pacific
Disaggregation of Revenue [Line Items]
Sales	66	55
Software & Control | Latin America
Disaggregation of Revenue [Line Items]
Sales	42	36
Lifecycle Services
Disaggregation of Revenue [Line Items]
Sales	523	546
Lifecycle Services | North America
Disaggregation of Revenue [Line Items]
Sales	259	266
Lifecycle Services | Europe, Middle East, and Africa
Disaggregation of Revenue [Line Items]
Sales	140	124
Lifecycle Services | Asia Pacific
Disaggregation of Revenue [Line Items]
Sales	93	110
Lifecycle Services | Latin America
Disaggregation of Revenue [Line Items]
Sales	$ 31	$ 46