Income Taxes	9 Months Ended
Mar. 29, 2013
Income Tax Disclosure [Abstract]
Income Taxes	6. Income Taxes The Company’s income tax provision for the three months ended March 29, 2013 was $15 million as compared to $55 million in the prior-year period. The Company’s income tax provision for the nine months ended March 29, 2013 was $207 million as compared to $88 million in the prior-year period. The Company’s income tax provision for both the three and nine months ended March 29, 2013 reflects a tax benefit of $34 million as a result of the retroactive extension of the U.S. Federal research and experimentation tax credit (“R&D credit”) that was signed into law on January 2, 2013 as part of the American Taxpayer Relief Act of 2012. The R&D credit, which had previously expired on December 31, 2011, was extended through December 31, 2013. The differences between the effective tax rate and the U.S. Federal statutory rate are primarily due to tax holidays in Malaysia, the Philippines, Singapore and Thailand that expire at various dates from 2014 through 2025, the current year generation of income tax credits and the effect of California Proposition 39 which was passed in November 2012. On November 6, 2012, California voters approved California Proposition 39, which affects California state income tax apportionment for most multi-state taxpayers for tax years beginning on or after January 1, 2013. This proposition reduces the Company’s future income apportioned to California, making it less likely for the Company to realize certain California deferred tax assets. As a result, the Company recorded an $88 million charge in the nine months ended March 29, 2013 to reduce its previously recognized California deferred tax assets as of December 28, 2012. In the three months ended March 29, 2013, the Company recorded a net increase of $6 million in its liability for unrecognized tax benefits. In the nine months ended March 29, 2013, the Company recorded a net increase of $2 million in its liability for unrecognized tax benefits. As of March 29, 2013, the Company had a recorded liability for unrecognized tax benefits of approximately $282 million. Interest and penalties recognized on such amounts were not material to the condensed consolidated financial statements during the three and nine months ended March 29, 2013. The Internal Revenue Service (“IRS”) has completed its field examination of the federal income tax returns for fiscal years 2006 and 2007 for the Company. The Company has received Revenue Agent Reports (“RARs”) from the IRS that seek adjustments to income before income taxes of approximately $970 million in connection with unresolved issues related primarily to transfer pricing and certain other intercompany transactions. The Company disagrees with the proposed adjustments. In May 2011, the Company filed a protest with the IRS Appeals Office regarding the proposed adjustments. Meetings with the Appeals Office began in February 2012. In January 2012, the IRS commenced an examination of the Company’s fiscal years 2008 and 2009 and of the 2007 fiscal period ended September 5, 2007 of Komag, Incorporated (“Komag”), which was acquired by the Company on September 5, 2007. In February 2013, the IRS commenced an examination of calendar years 2010 and 2011 of HGST, which was acquired by the Company on March 8, 2012. The Company believes that adequate provision has been made for any adjustments that may result from tax audits. However, the outcome of tax audits cannot be predicted with certainty. If any issues addressed in the Company’s tax audits are resolved in a manner not consistent with management’s expectations, the Company could be required to adjust its provision for income taxes in the period such resolution occurs. As of March 29, 2013, the Company believes that it is reasonably possible the liability for unrecognized tax benefits will decrease by $54 million within the next twelve months. Any significant change in the amount of the Company’s liability for unrecognized tax benefits would most likely result from additional information or settlements relating to the examination of the Company’s tax returns.

6. Income Taxes

The Company’s income tax provision for the three months ended March 29, 2013 was $15 million as compared to $55 million in the prior-year period. The Company’s income tax provision for the nine months ended March 29, 2013 was $207 million as compared to $88 million in the prior-year period. The Company’s income tax provision for both the three and nine months ended March 29, 2013 reflects a tax benefit of $34 million as a result of the retroactive extension of the U.S. Federal research and experimentation tax credit (“R&D credit”) that was signed into law on January 2, 2013 as part of the American Taxpayer Relief Act of 2012. The R&D credit, which had previously expired on December 31, 2011, was extended through December 31, 2013. The differences between the effective tax rate and the U.S. Federal statutory rate are primarily due to tax holidays in Malaysia, the Philippines, Singapore and Thailand that expire at various dates from 2014 through 2025, the current year generation of income tax credits and the effect of California Proposition 39 which was passed in November 2012.

On November 6, 2012, California voters approved California Proposition 39, which affects California state income tax apportionment for most multi-state taxpayers for tax years beginning on or after January 1, 2013. This proposition reduces the Company’s future income apportioned to California, making it less likely for the Company to realize certain California deferred tax assets. As a result, the Company recorded an $88 million charge in the nine months ended March 29, 2013 to reduce its previously recognized California deferred tax assets as of December 28, 2012.

In the three months ended March 29, 2013, the Company recorded a net increase of $6 million in its liability for unrecognized tax benefits. In the nine months ended March 29, 2013, the Company recorded a net increase of $2 million in its liability for unrecognized tax benefits. As of March 29, 2013, the Company had a recorded liability for unrecognized tax benefits of approximately $282 million. Interest and penalties recognized on such amounts were not material to the condensed consolidated financial statements during the three and nine months ended March 29, 2013.

The Internal Revenue Service (“IRS”) has completed its field examination of the federal income tax returns for fiscal years 2006 and 2007 for the Company. The Company has received Revenue Agent Reports (“RARs”) from the IRS that seek adjustments to income before income taxes of approximately $970 million in connection with unresolved issues related primarily to transfer pricing and certain other intercompany transactions. The Company disagrees with the proposed adjustments. In May 2011, the Company filed a protest with the IRS Appeals Office regarding the proposed adjustments. Meetings with the Appeals Office began in February 2012. In January 2012, the IRS commenced an examination of the Company’s fiscal years 2008 and 2009 and of the 2007 fiscal period ended September 5, 2007 of Komag, Incorporated (“Komag”), which was acquired by the Company on September 5, 2007. In February 2013, the IRS commenced an examination of calendar years 2010 and 2011 of HGST, which was acquired by the Company on March 8, 2012.

The Company believes that adequate provision has been made for any adjustments that may result from tax audits. However, the outcome of tax audits cannot be predicted with certainty. If any issues addressed in the Company’s tax audits are resolved in a manner not consistent with management’s expectations, the Company could be required to adjust its provision for income taxes in the period such resolution occurs. As of March 29, 2013, the Company believes that it is reasonably possible the liability for unrecognized tax benefits will decrease by $54 million within the next twelve months. Any significant change in the amount of the Company’s liability for unrecognized tax benefits would most likely result from additional information or settlements relating to the examination of the Company’s tax returns.