Income Taxes	3 Months Ended
Dec. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes In accordance with ASC 740, Income Taxes (ASC 740), each interim period is considered integral to the annual period, and tax expense is measured using an estimated annual effective tax rate. An entity is required to record income tax expense each quarter based on its annual effective tax rate estimated for the full fiscal year and use that rate to provide for income taxes on a current year-to-date basis, adjusted for discrete taxable events that occur during the interim period. The Company’s effective tax rate for the three months ended December 30, 2017 was (324.5)% compared to 25.5% for the corresponding period in the prior year. The benefit recorded in the current quarter is primarily due to the impact of the Tax Cuts and Jobs Act (the "Act") enacted on December 22, 2017. As a result of this law, US corporations are subject to lower income tax rates, and the Company is required to remeasure its US net deferred tax liabilities at a lower rate, resulting in a net benefit of $355.2 million recorded in the provision for income taxes. Partially offsetting this benefit, the Company recorded a charge of $26.0 million for transition taxes related to the deemed repatriation of foreign earnings. For the current quarter, in addition to the items noted, the effective tax rate was lower than the statutory tax rate primarily due to the impact of earnings in jurisdictions subject to lower tax rates, and the domestic production activities deduction benefit. For the three months ended December 31, 2016, the effective tax rate was lower than the statutory tax rate primarily due to the tax benefit from restricted stock units upon vesting, earnings in jurisdictions subject to lower tax rates, and the domestic production activities deduction benefit. US Tax Reform The Act reduces the US federal corporate income tax rate from 35% to 21%, requires companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred, and creates new taxes on certain foreign sourced earnings. At December 30, 2017, the Company has not completed its accounting for the tax effects of enactment of the Act; however, as described below, the Company has made a reasonable estimate of the effects on its existing deferred tax balances and the one-time transition tax, and recognized a provisional net benefit of $329.2 million, which is included in income tax expense. On December 22, 2017, the SEC issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act (“SAB 118”) directing SEC registrants to consider the impact of the US legislation as “provisional” when it does not have the necessary information available, prepared or analyzed (including computations) in reasonable detail to complete its accounting for the change in tax law. In accordance with SAB 118, the additional estimated net income tax benefit of $329.2 million represents the Company’s best estimate based on its interpretation of the US legislation as the Company is still accumulating data to finalize the underlying calculations, or in certain cases, the US Treasury is expected to issue further guidance on the application of certain provisions of the US legislation. In the three months ended December 30, 2017, the Company revised its estimated annual effective rate to reflect a change in the federal statutory income tax rate from 35% to 21%. The rate change is administratively effective at the beginning of the Company’s fiscal year, using a blended rate for the annual period. The Company's blended statutory income tax rate for fiscal 2018 is 24.5%. Deferred tax assets and liabilities: The Company re-measured certain deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which is 24.5% for fiscal 2018 reversals and 21% for post-fiscal 2018 reversals. However, the Company is still analyzing certain aspects of the Act and refining its calculations, which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts. The provisional net benefit amount recorded related to the re-measurement of the Company’s deferred tax balance was $355.2 million. Foreign tax effects: The one-time transition tax is based on the Company’s total post-1986 earnings and profits (E&P) which were previously deferred from US income taxes. The Company recorded a provisional amount for its one-time transition tax liability related to the deemed repatriation of the earnings of its foreign subsidiaries, resulting in an increase in income tax expense of $26.0 million. The Company has not yet finalized its calculation of the total post-1986 foreign E&P for these foreign subsidiaries. Further, the transition tax is based in part on the amount of those earnings held in cash and other specified assets. This amount may change when the Company finalizes the calculation of its post-1986 foreign E&P previously deferred from US federal taxation and finalizes the amounts held in cash or other specified assets. No additional income taxes have been provided for any remaining undistributed foreign earnings not subject to the transition tax and any additional outside basis difference inherent in these entities as these amounts continue to be indefinitely reinvested in foreign operations. The Company continues to evaluate this assertion in its ongoing analysis of the effects of tax reform on the Company's strategic initiatives. The Company believes that determining the amount of unrecognized deferred tax liability related to any remaining undistributed foreign earnings not subject to the transition tax and additional outside basis difference in these entities (i.e., basis difference in excess of that subject to the one time transition tax) is not practicable. Further, starting in fiscal 2019, the Act subjects a US shareholder of a controlled foreign corporation to current tax on “global intangible low-taxed income” (GILTI) and establishes a tax on certain payments from corporations subject to US tax to related foreign persons, also referred to as base erosion and anti-abuse tax (BEAT). Because of the complexity of the new international tax provisions not applicable to the Company until fiscal 2019, the Company is continuing to evaluate these provisions of the Act and the application of ASC 740. Non-Income Tax Matters The Company is subject to tax examinations for value added, sales-based, payroll and other non-income tax items. A number of these examinations are ongoing in various jurisdictions. The Company takes certain non-income tax positions in the jurisdictions in which it operates pursuant to ASC 450. In the normal course of business, the Company's positions and conclusions related to its non-income tax positions could be challenged, resulting in assessments by governmental authorities. In January 2018, the Company settled an ongoing state tax audit for approximately $11.0 million, resulting in a reversal of $4.0 million recorded to general and administrative expenses in the first quarter of fiscal 2018.

Income Taxes

In accordance with ASC 740, Income Taxes (ASC 740), each interim period is considered integral to the annual period, and tax expense is measured using an estimated annual effective tax rate. An entity is required to record income tax expense each quarter based on its annual effective tax rate estimated for the full fiscal year and use that rate to provide for income taxes on a current year-to-date basis, adjusted for discrete taxable events that occur during the interim period.

The Company’s effective tax rate for the three months ended December 30, 2017 was (324.5)% compared to 25.5% for the corresponding period in the prior year. The benefit recorded in the current quarter is primarily due to the impact of the Tax Cuts and Jobs Act (the "Act") enacted on December 22, 2017. As a result of this law, US corporations are subject to lower income tax rates, and the Company is required to remeasure its US net deferred tax liabilities at a lower rate, resulting in a net benefit of $355.2 million recorded in the provision for income taxes. Partially offsetting this benefit, the Company recorded a charge of $26.0 million for transition taxes related to the deemed repatriation of foreign earnings. For the current quarter, in addition to the items noted, the effective tax rate was lower than the statutory tax rate primarily due to the impact of earnings in jurisdictions subject to lower tax rates, and the domestic production activities deduction benefit. For the three months ended December 31, 2016, the effective tax rate was lower than the statutory tax rate primarily due to the tax benefit from restricted stock units upon vesting, earnings in jurisdictions subject to lower tax rates, and the domestic production activities deduction benefit.

US Tax Reform

The Act reduces the US federal corporate income tax rate from 35% to 21%, requires companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred, and creates new taxes on certain foreign sourced earnings.

At December 30, 2017, the Company has not completed its accounting for the tax effects of enactment of the Act; however, as described below, the Company has made a reasonable estimate of the effects on its existing deferred tax balances and the one-time transition tax, and recognized a provisional net benefit of $329.2 million, which is included in income tax expense.

On December 22, 2017, the SEC issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act (“SAB 118”) directing SEC registrants to consider the impact of the US legislation as “provisional” when it does not have the necessary information available, prepared or analyzed (including computations) in reasonable detail to complete its accounting for the change in tax law. In accordance with SAB 118, the additional estimated net income tax benefit of $329.2 million represents the Company’s best estimate based on its interpretation of the US legislation as the Company is still accumulating data to finalize the underlying calculations, or in certain cases, the US Treasury is expected to issue further guidance on the application of certain provisions of the US legislation.

In the three months ended December 30, 2017, the Company revised its estimated annual effective rate to reflect a change in the federal statutory income tax rate from 35% to 21%. The rate change is administratively effective at the beginning of the Company’s fiscal year, using a blended rate for the annual period. The Company's blended statutory income tax rate for fiscal 2018 is 24.5%.

Deferred tax assets and liabilities: The Company re-measured certain deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which is 24.5% for fiscal 2018 reversals and 21% for post-fiscal 2018 reversals. However, the Company is still analyzing certain aspects of the Act and refining its calculations, which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts. The provisional net benefit amount recorded related to the re-measurement of the Company’s deferred tax balance was $355.2 million.

Foreign tax effects: The one-time transition tax is based on the Company’s total post-1986 earnings and profits (E&P) which were previously deferred from US income taxes. The Company recorded a provisional amount for its one-time transition tax liability related to the deemed repatriation of the earnings of its foreign subsidiaries, resulting in an increase in income tax expense of $26.0 million. The Company has not yet finalized its calculation of the total post-1986 foreign E&P for these foreign subsidiaries. Further, the transition tax is based in part on the amount of those earnings held in cash and other specified assets. This amount may change when the Company finalizes the calculation of its post-1986 foreign E&P previously deferred from US federal taxation and finalizes the amounts held in cash or other specified assets. No additional income taxes have been provided for any remaining undistributed foreign earnings not subject to the transition tax and any additional outside basis difference inherent in these entities as these amounts continue to be indefinitely reinvested in foreign operations. The Company continues to evaluate this assertion in its ongoing analysis of the effects of tax reform on the Company's strategic initiatives. The Company believes that determining the amount of unrecognized deferred tax liability related to any remaining undistributed foreign earnings not subject to the transition tax and additional outside basis difference in these entities (i.e., basis difference in excess of that subject to the one time transition tax) is not practicable.

Further, starting in fiscal 2019, the Act subjects a US shareholder of a controlled foreign corporation to current tax on “global intangible low-taxed income” (GILTI) and establishes a tax on certain payments from corporations subject to US tax to related foreign persons, also referred to as base erosion and anti-abuse tax (BEAT).

Because of the complexity of the new international tax provisions not applicable to the Company until fiscal 2019, the Company is continuing to evaluate these provisions of the Act and the application of ASC 740.

Non-Income Tax Matters

The Company is subject to tax examinations for value added, sales-based, payroll and other non-income tax items. A number of these examinations are ongoing in various jurisdictions. The Company takes certain non-income tax positions in the jurisdictions in which it operates pursuant to ASC 450. In the normal course of business, the Company's positions and conclusions related to its non-income tax positions could be challenged, resulting in assessments by governmental authorities.

In January 2018, the Company settled an ongoing state tax audit for approximately $11.0 million, resulting in a reversal of $4.0 million recorded to general and administrative expenses in the first quarter of fiscal 2018.