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Earnings Per Share and Certain Related Information - Share Repurchases (Details) - 2019 and 2020 Share Repurchase Program $ / shares in Units, $ in Millions	3 Months Ended
	Jan. 01, 2021 USD ($) $ / shares shares
Class of Stock [Line Items]
Amount authorized to be repurchased | $	$ 2,000
Average Price Per Share (in dollars per share) | $ / shares	$ 98.81
Shares Repurchased	251,001
Total Shares Retired	251,001

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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.

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Amount of stock repurchase plan authorized.

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Number of shares that have been repurchased and retired during the period.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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