Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The increase (decrease) during the reporting period in the account that represents the temporary difference that results from Income or Loss that is recognized for accounting purposes but not for tax purposes and vice versa.

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Amount of unrecognized tax benefits.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	Jan. 01, 2018	Mar. 29, 2019	Mar. 30, 2018	Mar. 29, 2019	Mar. 30, 2018	Sep. 28, 2018	Sep. 29, 2017
Income Tax Contingency [Line Items]
Federal tax rate	21.00%		35.00%
Provision for income taxes		$ 36,427	$ 22,432	$ 12,323	$ 172,137
Unrecognized tax benefits, gross		105,200		105,200			$ 102,000
Unrecognized tax benefits if recognized, would affect our effective tax rate		$ 66,900		$ 66,900			$ 96,900
Effective tax rate (as a percent)		33.10%	25.60%	6.70%	93.40%
Impact Of Tax Cuts And Jobs Act [Member]
Income Tax Contingency [Line Items]
Provision for income taxes						$ 121,400
Impact Of Tax Cuts And Jobs Act, Repatriation Transition Tax [Member]
Income Tax Contingency [Line Items]
Increase (Decrease) in Deferred Income Taxes		$ 35,000