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Segment and Geographic Data - Net Sales by Geographic Region and 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
Net sales	$ 3,412	$ 3,562	$ 6,759	$ 6,898
Transportation Solutions
Segment and Geographic Data
Net sales	1,971	2,134	3,957	4,166
Industrial Solutions
Segment and Geographic Data
Net sales	1,007	972	1,935	1,854
Communications Solutions
Segment and Geographic Data
Net sales	434	456	867	878
EMEA
Segment and Geographic Data
Net sales	1,276	1,425	2,447	2,643
EMEA | Transportation Solutions
Segment and Geographic Data
Net sales	824	934	1,580	1,742
EMEA | Industrial Solutions
Segment and Geographic Data
Net sales	382	410	732	754
EMEA | Communications Solutions
Segment and Geographic Data
Net sales	70	81	135	147
Asia-Pacific
Segment and Geographic Data
Net sales	1,070	1,182	2,243	2,402
Asia-Pacific | Transportation Solutions
Segment and Geographic Data
Net sales	674	756	1,438	1,561
Asia-Pacific | Industrial Solutions
Segment and Geographic Data
Net sales	155	164	310	327
Asia-Pacific | Communications Solutions
Segment and Geographic Data
Net sales	241	262	495	514
Americas
Segment and Geographic Data
Net sales	1,066	955	2,069	1,853
Americas | Transportation Solutions
Segment and Geographic Data
Net sales	473	444	939	863
Americas | Industrial Solutions
Segment and Geographic Data
Net sales	470	398	893	773
Americas | Communications Solutions
Segment and Geographic Data
Net sales	$ 123	$ 113	$ 237	$ 217

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
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-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

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