Income Taxes (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Oct. 01, 2021	Oct. 02, 2020	Sep. 27, 2019
Income Taxes [Line Items]
United States tax rate	21.00%	21.00%	24.60%
Foreign tax rate difference	$ (155,200)	$ (86,600)	$ (115,300)
Income tax holiday	September 30, 2030
Impact of tax holiday	$ 99,500	$ 63,100	$ 32,800
Impact of tax holiday on diluted earnings per share (in dollars per share)	$ 0.60	$ 0.37	$ 0.19
Valuation Allowance, Amount	$ 150,000	$ 137,400
Tax benefit to recognize if valuation allowance is reversed	150,000
Future taxable income needed to utilize deferred tax assets	351,700
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	12,600	8,300
Total unrecognized tax benefits that would impact the effective tax rate	35,900
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	(11,600)	4,600	$ 6,000
Previously unrecognized tax benefits related to the expiration of the statute of limitations	25,500
Decreases relating to settlements with taxing authorities	13,600
Accrued interest or penalties related to unrecognized tax benefit	4,500	16,100
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount	0	200	8,100
EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncomeAmount	69,000	35,900	54,300
EffectiveIncomeTaxRateReconciliationForeignDerivedIntangibleIncome	(79,700)	(41,200)	(41,500)
Provision for income taxes	100,400	$ 76,900	$ 107,400
Internal Revenue Service (IRS)
Income Taxes [Line Items]
Provision for income taxes	(34,800)
Foreign Tax Authority [Member]
Income Taxes [Line Items]
Valuation Allowance, Amount	19,800
State and Local Jurisdiction [Member] \| General Business Tax Credit Carryforward
Income Taxes [Line Items]
Valuation Allowance, Amount	126,900
State and Local Jurisdiction [Member] \| Capital Loss Carryforward
Income Taxes [Line Items]
Valuation Allowance, Amount	$ 3,300
UNITED STATES
Income Taxes [Line Items]
Open tax year	2018
CALIFORNIA
Income Taxes [Line Items]
Open tax year	1999
CANADA
Income Taxes [Line Items]
Open tax year	2014
MEXICO
Income Taxes [Line Items]
Open tax year	2015
JAPAN
Income Taxes [Line Items]
Open tax year	2014
SINGAPORE
Income Taxes [Line Items]
Open tax year	2015

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The amount of income taxes from which a reporting entity is exempt or for which it will receive a reduction in income taxes as a result of the income tax holiday granted by the taxing jurisdiction.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).

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Tax year that remains open to examination under enacted tax laws, in CCYY format.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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

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