Goodwill and Other Intangible Assets—Net - Schedule of Goodwill (Details) $ in Millions	9 Months Ended
Sep. 30, 2026 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 18,054
Acquisitions	494
Divestitures	(949)
Currency Translation Adjustment	(38)
Goodwill, ending balance	17,561
Operating Segments \| Building Automation
Goodwill [Roll Forward]
Goodwill, beginning balance	6,439
Acquisitions	0
Divestitures	0
Currency Translation Adjustment	(33)
Goodwill, ending balance	6,406
Operating Segments \| Process Automation and Technology
Goodwill [Roll Forward]
Goodwill, beginning balance	7,140
Acquisitions	485
Divestitures	0
Currency Translation Adjustment	(4)
Goodwill, ending balance	7,621
Operating Segments \| Industrial Automation
Goodwill [Roll Forward]
Goodwill, beginning balance	3,526
Acquisitions	9
Divestitures	0
Currency Translation Adjustment	(1)
Goodwill, ending balance	3,534
Corporate
Goodwill [Roll Forward]
Goodwill, beginning balance	949
Acquisitions	0
Divestitures	(949)
Currency Translation Adjustment	0
Goodwill, ending balance	$ 0

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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