Fair Value (Tables)

6 Months Ended

Jan. 24, 2015

Fair Value Disclosures [Abstract]

Assets And Liabilities Measured At Fair Value On A Recurring Basis

Assets and liabilities measured at fair value on a recurring basis as of January 24, 2015 and July 26, 2014 were as follows (in millions):

	JANUARY 24, 2015 FAIR VALUE MEASUREMENTS								JULY 26, 2014 FAIR VALUE MEASUREMENTS
	Level 1		Level 2		Level 3		Total Balance		Level 1		Level 2		Level 3		Total Balance
Assets:
Cash equivalents:
Money market funds	$	2,977	$	—	$	—	$	2,977	$	4,935	$	—	$	—	$	4,935
Corporate debt securities	—		67		—		67		—		—		—		—
Available-for-sale investments:
U.S. government securities	—		30,354		—		30,354		—		31,734		—		31,734
U.S. government agency securities	—		2,326		—		2,326		—		1,063		—		1,063
Non-U.S. government and agency securities	—		1,109		—		1,109		—		861		—		861
Corporate debt securities	—		11,213		—		11,213		—		9,159		—		9,159
U.S. agency mortgage-backed securities	—		1,375		—		1,375		—		579		—		579
Publicly traded equity securities	1,848		—		—		1,848		1,952		—		—		1,952
Derivative assets	—		288		—		288		—		158		2		160
Total	$	4,825	$	46,732	$	—	$	51,557	$	6,887	$	43,554	$	2	$	50,443
Liabilities:
Derivative liabilities	$	—	$	162	$	—	$	162	$	—	$	67	$	—	$	67
Total	$	—	$	162	$	—	$	162	$	—	$	67	$	—	$	67