Employee Stock and Benefit Plans (Stock Option Transactions) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
Oct. 03, 2021	Sep. 27, 2020	Sep. 29, 2019
Shares Subject to Options
Outstanding, September 29, 2019, Shares Subject to Options	9.2
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	0.0
Exercised, Shares Subject to Options	(4.0)
Expired/forfeited, Shares Subject to Options	0.0
Outstanding, September 27, 2020, Shares Subject to Options	5.2	9.2
Exercisable, September 27, 2020, Shares Subject to Options	4.4
Vested and expected to vest, September 27, 2020, Shares Subject to Options	5.2
Weighted Average Exercise Price per Share
Outstanding, September 29, 2019, Weighted Average Exercise Price per Share Beginning Balance	$ 53.06
Granted, Weighted Average Exercise Price per Share	110.46	$ 56.33	$ 67.33
Exercised, Weighted Average Exercise Price per Share	51.31
Expired/forfeited, Weighted Average Exercise Price per Share	56.69
Outstanding, September 27, 2020, Weighted Average Exercise Price per Share Ending Balance	54.58	$ 53.06
Exercisable at September 27, 2020, Weighted Average Exercise Price per Share	53.06
Vested and expected to vest, September 27, 2020, Weighted Average Exercise Price per Share	$ 54.57
Additional Disclosures
Outstanding, Weighted Average Remaining Contractual Life (Years)	4 years 6 months	5 years 4 months 24 days
Exercisable, September 27, 2020, Weighted Average Remaining Contractual Life (Years)	4 years 1 month 6 days
Vested and expected to vest, September 27, 2020, Weighted Average Remaining Contractual Life (Years)	4 years 6 months
Aggregate Intrinsic Value
Outstanding, Aggregate Intrinsic Value	$ 303	$ 286
Exercisable, September 27, 2020, Aggregate Intrinsic Value	261
Vested and expected to vest, September 27, 2020, Aggregate Intrinsic Value	$ 302

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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