Acquisitions Pro Forma Financial Information (Details) - TFCF - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Sep. 28, 2019	Sep. 29, 2018
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Revenue	$ 78,116	$ 76,318
Business Acquisition, Pro Forma Net Income (Loss)	7,596	13,708
Business Acquisitions Pro Forma Net Income Loss Attributable to Parent	$ 7,284	$ 13,877
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$ 3.72	$ 7.64
Business Acquisition, Pro Forma Earnings Per Share, Basic	$ 3.74	$ 7.68

Business Acquisitions Pro Forma Net Income Loss Attributable to Parent

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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-Publisher FASB
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