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Acquisition - Purchase Price Allocation (Detail) (USD $) In Millions, unless otherwise specified	Jun. 28, 2013	Jun. 29, 2012	Jun. 28, 2013 Hitachi Global Storage Technologies [Member]	Mar. 08, 2012 Hitachi Global Storage Technologies [Member]
Business Acquisition [Line Items]
Cash and cash equivalents				$ 194
Accounts receivable				1,290
Inventories				721
Other current assets				219
Property, plant and equipment				1,813
Other non-current assets				66
Accounts payable				(841)
Accrued liabilities				(594)
Debt assumed				(585)
Pension and other post-retirement benefit liabilities				(130)
Other liabilities				(102)
Intangible assets				833
Goodwill	1,954	1,975	1,800	1,803
Total				$ 4,687