Supplemental Balance Sheet Information Supplemental Balance Sheet (Prepaids and Other Current Assets) (Details) - USD ($) $ in Millions	Sep. 29, 2019	Sep. 30, 2018
Prepaid Expenses and Other Current Assets [Line Items]
Income Taxes Receivable, Current	$ 141.1	$ 955.4
Other Prepaid Expense, Current	347.1	507.4
Total prepaid expenses and current assets	$ 488.2	$ 1,462.8

[Line Items] for Prepaid Expenses and Other Current Assets [Table]

No definition available.

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Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

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Amount of asset related to consideration paid in advance for other costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

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