Fair Value (Tables)

6 Months Ended

Jan. 26, 2013

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis as of January 26, 2013 and July 28, 2012 were as follows (in millions):

	JANUARY 26, 2013 FAIR VALUE MEASUREMENTS								JULY 28, 2012 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	$	4,513	$	—	$	—	$	4,513	$	2,506	$	—	$	—	$	2,506
Available-for-sale investments:
U.S. government securities	—		25,177		—		25,177		—		24,241		—		24,241
U.S. government agency securities	—		3,790		—		3,790		—		5,388		—		5,388
Non-U.S. government and agency securities	—		1,336		—		1,336		—		1,638		—		1,638
Corporate debt securities	—		7,118		—		7,118		—		6,030		—		6,030
Publicly traded equity securities	2,108		—		—		2,108		1,620		—		—		1,620
Derivative assets	—		244		—		244		—		263		1		264
Total	$	6,621	$	37,665	$	—	$	44,286	$	4,126	$	37,560	$	1	$	41,687
Liabilities:
Derivative liabilities	$	—	$	57	$	—	$	57	$	—	$	42	$	—	$	42
Total	$	—	$	57	$	—	$	57	$	—	$	42	$	—	$	42

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

The following table presents a reconciliation of all assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the six months ended January 28, 2012 (in millions):

	Asset-Backed Securities			Derivative Assets			Total
Balance at July 30, 2011	$	121		$	2		$	123
Total gains and losses (realized and unrealized):
Included in other income (loss), net	3			—			3
Included in other comprehensive income (loss)	(3		)	—			(3		)
Sales and maturities	(14		)	(1		)	(15		)
Transfer into Level 2	(107		)	—			(107		)
Balance at January 28, 2012	$	—		$	1		$	1

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis

The following table presents the Company’s financial instruments and nonfinancial assets that were measured at fair value on a nonrecurring basis during the indicated periods and the related recognized gains and losses for the periods (in millions):

	January 26, 2013
	Net Carrying Value as of End of Period		Total Losses for the Three Months Ended			Total Losses for the Six Months Ended
Investments in privately held companies	$	60	$	(8	)	$	(18	)

	January 28, 2012
	Net Carrying Value as of End of Period		Total Gains (Losses) for the Three Months Ended			Total Gains (Losses) for the Six Months Ended
Investments in privately held companies	$	6	$	(1	)	$	(2	)
Property held for sale	$	39	(27		)	(116		)
Gains on assets no longer held at period end			14			14
Total losses for nonrecurring measurements			$	(14	)	$	(104	)