Income Taxes	9 Months Ended
Income Taxes	Dec. 28, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Swiss Tax Reform In May 2019, a public referendum was held in Switzerland that approved the Federal Act on Tax Reform and AHV Financing (the "Swiss Tax Act"), which became effective January 1, 2020. The Swiss Tax Act eliminates certain preferential tax items at both the federal and cantonal levels for multinational companies, and provides the cantons with parameters for establishing local tax rates and regulations. The Swiss Tax Act also provides transitional provisions, one of which allows eligible companies to increase the tax basis of certain assets based on the value generated by their business in previous years, and to amortize such adjustment as a tax deduction over a transitional period. During the second quarter of Fiscal 2020, the Swiss Tax Act was enacted into law, resulting in an immaterial adjustment associated with the revaluation of the Company's Swiss deferred tax assets and liabilities and estimated annual effective tax rate. Subsequently, as a result of additional information received from the tax authorities and analyses performed related to the transitional provision noted above, the Company recorded a one-time income tax benefit and corresponding deferred tax asset of $134.1 million during the third quarter of Fiscal 2020. This one-time benefit decreased the Company's effective tax rate by 5,820 basis points and 2,180 basis points during the three-month and nine-month periods ended December 28, 2019, respectively. Effective Tax Rate The Company's effective tax rate, which is calculated by dividing each fiscal period's income tax benefit (provision) by pretax income, was (45.1%) and (3.2%) during the three-month and nine-month periods ended December 28, 2019, respectively, and 39.8% and 27.0% during the three-month and nine-month periods ended December 29, 2018, respectively. The negative effective tax rates for the three-month and nine-month periods ended December 28, 2019 were lower than the U.S. federal statutory income tax rate of 21% primarily due to the one-time income tax benefit recorded in connection with Swiss tax reform, as previously discussed, lower income tax reserves largely associated with the settlement of certain international income tax audits, and the favorable impact of tax benefits associated with provision to tax return adjustments. The effective tax rates for the three-month and nine-month periods ended December 29, 2018 were higher than the U.S. federal statutory income tax rate of 21% primarily due to net unfavorable TCJA-related measurement period adjustments, as discussed below. During the second quarter of Fiscal 2019, the Company recorded a TCJA measurement period adjustment as a result of the issuance of new interpretive guidance related to stock-based compensation for certain executives, whereby it recorded an income tax benefit and corresponding deferred tax asset of $4.7 million. Subsequently, during the third quarter of Fiscal 2019, the Company completed its analyses and recorded its final measurement period adjustments, whereby it recorded incremental charges of $32.3 million within its income tax provision, substantially all of which related to the mandatory transition tax. These measurement period adjustments increased the Company's effective tax rate by 1,610 basis points and 500 basis points during the three-month and nine-month periods ended December 29, 2018, respectively. Refer to Note 10 of the Fiscal 2019 10-K for further discussion regarding the TCJA. Uncertain Income Tax Benefits The Company classifies interest and penalties related to unrecognized tax benefits as part of its income tax provision. The total amount of unrecognized tax benefits, including interest and penalties, was $70.6 million and $78.8 million as of December 28, 2019 and March 30, 2019, respectively, and is included within non-current liability for unrecognized tax benefits in the consolidated balance sheets. The total amount of unrecognized tax benefits that, if recognized, would affect the Company's effective tax rate was $60.2 million and $70.7 million as of December 28, 2019 and March 30, 2019, respectively. Future Changes in Unrecognized Tax Benefits The total amount of unrecognized tax benefits relating to the Company's tax positions is subject to change based on future events including, but not limited to, settlements of ongoing tax audits and assessments and the expiration of applicable statutes of limitations. Although the outcomes and timing of such events are highly uncertain, the Company does not anticipate that the balance of gross unrecognized tax benefits, excluding interest and penalties, will change significantly during the next twelve months. However, changes in the occurrence, expected outcomes, and timing of such events could cause the Company's current estimate to change materially in the future. The Company files a consolidated U.S. federal income tax return, as well as tax returns in various state, local, and foreign jurisdictions. The Company is generally no longer subject to examinations by the relevant tax authorities for years prior to its fiscal year ended March 30, 2013.