Goodwill and Intangible Assets - Goodwill (Details) - Manufacturing group - USD ($) $ in Millions	12 Months Ended
Dec. 30, 2023	Dec. 31, 2022
Changes in the carrying amount of goodwill
Beginning Balance	$ 2,283	$ 2,149
Acquisitions		146
Foreign currency translation	12	(12)
Ending Balance	2,295	2,283
Textron Aviation
Changes in the carrying amount of goodwill
Beginning Balance	633	631
Acquisitions		3
Foreign currency translation	0	(1)
Ending Balance	633	633
Bell
Changes in the carrying amount of goodwill
Beginning Balance	37	35
Acquisitions		2
Foreign currency translation	0	0
Ending Balance	37	37
Textron Systems
Changes in the carrying amount of goodwill
Beginning Balance	1,010	1,010
Acquisitions		0
Foreign currency translation	0	0
Ending Balance	1,010	1,010
Industrial
Changes in the carrying amount of goodwill
Beginning Balance	465	473
Acquisitions		0
Foreign currency translation	5	(8)
Ending Balance	470	465
Textron eAviation
Changes in the carrying amount of goodwill
Beginning Balance	138	0
Acquisitions		141
Foreign currency translation	7	(3)
Ending Balance	$ 145	$ 138

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