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Segment and Geographic Data - Operating Income by Segment (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 29, 2019 | Mar. 30, 2018 | Mar. 29, 2019 | Mar. 30, 2018
Segment and Geographic Data |  |  |  |
Operating income | $ 530 | $ 621 | $ 1,014 | $ 1,207
Transportation Solutions |  |  |  |
Segment and Geographic Data |  |  |  |
Operating income | 316 | 427 | 648 | 844
Industrial Solutions |  |  |  |
Segment and Geographic Data |  |  |  |
Operating income | 137 | 125 | 237 | 227
Communications Solutions |  |  |  |
Segment and Geographic Data |  |  |  |
Operating income | $ 77 | $ 69 | $ 129 | $ 136

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