Segment and Geographic Data - Net Sales by Geographic Region and Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023
Segment and Geographic Data
Net sales	$ 3,967	$ 4,160	$ 7,798	$ 8,001
Transportation Solutions
Segment and Geographic Data
Net sales	2,384	2,483	4,757	4,742
Industrial Solutions
Segment and Geographic Data
Net sales	1,143	1,191	2,168	2,251
Communications Solutions
Segment and Geographic Data
Net sales	440	486	873	1,008
Total Europe/Middle East/Africa
Segment and Geographic Data
Net sales	1,552	1,667	2,963	2,993
Total Europe/Middle East/Africa | Transportation Solutions
Segment and Geographic Data
Net sales	949	1,046	1,816	1,858
Total Europe/Middle East/Africa | Industrial Solutions
Segment and Geographic Data
Net sales	540	527	1,017	971
Total Europe/Middle East/Africa | Communications Solutions
Segment and Geographic Data
Net sales	63	94	130	164
Total Asia-Pacific
Segment and Geographic Data
Net sales	1,257	1,299	2,636	2,706
Total Asia-Pacific | Transportation Solutions
Segment and Geographic Data
Net sales	886	861	1,898	1,785
Total Asia-Pacific | Industrial Solutions
Segment and Geographic Data
Net sales	154	196	301	385
Total Asia-Pacific | Communications Solutions
Segment and Geographic Data
Net sales	217	242	437	536
Total Americas
Segment and Geographic Data
Net sales	1,158	1,194	2,199	2,302
Total Americas | Transportation Solutions
Segment and Geographic Data
Net sales	549	576	1,043	1,099
Total Americas | Industrial Solutions
Segment and Geographic Data
Net sales	449	468	850	895
Total Americas | Communications Solutions
Segment and Geographic Data
Net sales	$ 160	$ 150	$ 306	$ 308