Segment and Geographic Data - Net Sales by Geographic Region and Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 29, 2023	Dec. 30, 2022
Segment and Geographic Data
Net sales	$ 3,831	$ 3,841
Transportation Solutions
Segment and Geographic Data
Net sales	2,373	2,259
Industrial Solutions
Segment and Geographic Data
Net sales	1,025	1,060
Communications Solutions
Segment and Geographic Data
Net sales	433	522
Total Europe/Middle East/Africa
Segment and Geographic Data
Net sales	1,411	1,326
Total Europe/Middle East/Africa | Transportation Solutions
Segment and Geographic Data
Net sales	867	812
Total Europe/Middle East/Africa | Industrial Solutions
Segment and Geographic Data
Net sales	477	444
Total Europe/Middle East/Africa | Communications Solutions
Segment and Geographic Data
Net sales	67	70
Total Asia-Pacific
Segment and Geographic Data
Net sales	1,379	1,407
Total Asia-Pacific | Transportation Solutions
Segment and Geographic Data
Net sales	1,012	924
Total Asia-Pacific | Industrial Solutions
Segment and Geographic Data
Net sales	147	189
Total Asia-Pacific | Communications Solutions
Segment and Geographic Data
Net sales	220	294
Total Americas
Segment and Geographic Data
Net sales	1,041	1,108
Total Americas | Transportation Solutions
Segment and Geographic Data
Net sales	494	523
Total Americas | Industrial Solutions
Segment and Geographic Data
Net sales	401	427
Total Americas | Communications Solutions
Segment and Geographic Data
Net sales	$ 146	$ 158