Income Taxes - Total Amounts of Unrecognized Tax Benefits (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 28, 2013	Jun. 29, 2012	Jul. 01, 2011
Income Tax Disclosure [Abstract]
Unrecognized tax benefit at beginning of period	$ 280	$ 245	$ 230
Gross increases related to current year tax positions	29	14	24
Gross increases related to prior year tax positions	10		5
Gross decreases related to prior year tax positions	(8)		(11)
Settlements	(64)	(18)	(2)
Lapse of statute of limitations	(7)		(1)
HGST acquisition		39
Unrecognized tax benefit at end of period	$ 240	$ 280	$ 245