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Equity (Schedule of Share Repurchases) (Details) - Class A [Member] - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Oct. 02, 2021 | Oct. 03, 2020 | Sep. 28, 2019
Class of Stock [Line Items] |  |  |
Shares | 0.9 | 2.5 | 3.7
Dollars | $ 67 | $ 207 | $ 252
Share Repurchase Program [Member] |  |  |
Class of Stock [Line Items] |  |  |
Shares | 0.0 | 1.8 | 2.3
Dollars | $ 0 | $ 150 | $ 150
To fund certain obligations under equity compensation plans [Member] |  |  |
Class of Stock [Line Items] |  |  |
Shares | 0.9 | 0.7 | 1.4
Dollars | $ 67 | $ 57 | $ 102

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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details
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