v3.25.4

Acquisitions and Dispositions (Details) - USD ($) $ in Millions					12 Months Ended
	Oct. 06, 2025	Jul. 21, 2025	Oct. 31, 2024	Mar. 29, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Business Combination [Line Items]
Pre-tax gain on sale of business					$ 0	$ 415	$ 0
Actuation and Flight Control Business \| Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Collins Aerospace
Business Combination [Line Items]
Proceeds from sale of business		$ 1,800
Cash received from sale of business, net of cash transferred, that is attributable to continuing service agreements		1,600
Pre-tax gain on sale of business		$ 200
Simmonds Precision Products Business \| Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Collins Aerospace
Business Combination [Line Items]
Proceeds from sale of business	$ 800
Pre-tax gain on sale of business	$ 100
Cybersecurity, Intelligence and Services Business \| Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Raytheon
Business Combination [Line Items]
Pre-tax gain on sale of business				$ 400
Cash proceeds from sale of business				$ 1,300
Collins Goodrich Hoist & Winch Business \| Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Collins Aerospace
Business Combination [Line Items]
Pre-tax gain on sale of business			$ 100
Cash proceeds from sale of business			$ 500

Disposal Group, Including Discontinued Operation, Consideration, Net Of Cash Transferred, Attributable To Continuing Service Agreements

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