Benefit To Tax Expense Resulting From Reversal of Uncertain Tax Positions from Audit Settlement

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Future Taxable Income to Recognize Deferred Tax Assets

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Income Taxes [Line Items]

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Research and Development Tax Credit

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Tax benefit to recognize if valuation allowance is reversed

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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

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Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.

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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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Per share amount effect of the income tax benefit resulting from the income tax holidays granted by taxing jurisdictions.

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The date on which the special tax status will terminate.

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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 of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY-MM-DD format.

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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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 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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Income Taxes (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Sep. 30, 2016	Oct. 02, 2015	Oct. 03, 2014	Sep. 27, 2013
Income Taxes [Line Items]
United States tax rate	35.00%	35.00%	35.00%
Foreign tax rate difference	$ (164.1)	$ (120.9)	$ (77.3)
Federal research and development tax credit	11.6	11.0
Adjustment to previous tax returns	2.6		0.7	$ 1.9
Decreases relating to settlements with taxing authorities	22.6		20.9
Benefit to tax expense	$ 24.0		20.4
Tax benefits, reduction of foreign income tax expense			$ 4.6
Income tax holiday	Sep. 30, 2020
Impact of tax holiday	$ 30.8	$ 26.6
Impact of tax holiday on diluted earnings per share (in dollars per share)	$ 0.16	$ 0.14
Valuation Allowance, Amount	$ 79.1	$ 65.2
Tax benefit to recognize if valuation allowance is reversed	79.1
Future taxable income needed to utilize deferred tax assets	137.5
Federal net operating loss carry forwards	$ 9.3
Operating loss carryforwards, expiration date	Dec. 31, 2035
Undistributed earnings of foreign subsidiaries	$ 1,676.8
Total unrecognized tax benefits that would impact the effective tax rate	60.8
Previously unrecognized tax benefits related to the expiration of the statute of limitations	0.6
Accrued interest or penalties related to unrecognized tax benefit	1.9
Foreign Tax Authority [Member]
Income Taxes [Line Items]
Valuation Allowance, Amount	15.1
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Valuation Allowance, Amount	64.0
Tax credit carryforward	$ 64.0
UNITED STATES
Income Taxes [Line Items]
Open tax year	1999
CALIFORNIA
Income Taxes [Line Items]
Open tax year	1999
CANADA
Income Taxes [Line Items]
Open tax year	2008
LUXEMBOURG
Income Taxes [Line Items]
Open tax year	2011
MEXICO
Income Taxes [Line Items]
Open tax year	2009
SINGAPORE
Income Taxes [Line Items]
Open tax year	2011