Cash and Investments

Cash and the fair values of our available-for-sale investments, which approximated amortized costs, were as follows:



As of	September 3, 2015								August 28, 2014
	Cash and Equivalents		Short-term Investments		Long-term Marketable Investments⁽³⁾		Total Fair Value		Cash and Equivalents		Short-term Investments		Long-term Marketable Investments⁽³⁾		Total Fair Value
Cash	$	1,684	$	—	$	—	$	1,684	$	2,445	$	—	$	—	$	2,445
Level 1⁽¹⁾
Money market funds	168		—		—		168		1,281		—		—		1,281
Marketable equity securities	—		—		—		—		—		—		1		1
	168		—		—		168		1,281		—		1		1,282
Level 2⁽²⁾
Corporate bonds	2		616		1,261		1,879		—		154		407		561
Government securities	58		391		254		703		—		136		284		420
Asset-backed securities	—		8		575		583		—		1		127		128
Certificates of deposit	311		28		23		362		402		8		—		410
Commercial paper	64		191		—		255		22		85		—		107
	435		1,234		2,113		3,782		424		384		818		1,626
	$	2,287	$	1,234	$	2,113	$	5,634	$	4,150	$	384	$	819	$	5,353


⁽¹⁾	The fair value of Level 1 securities is measured based on quoted prices in active markets for identical assets.

⁽²⁾

The fair value of Level 2 securities is measured using information obtained from pricing services, which obtain quoted market prices for similar instruments, non-binding market consensus prices that are corroborated by observable market data, or various other methodologies, to determine the appropriate value at the measurement date. We perform supplemental analysis to validate information obtained from these pricing services. As of September 3, 2015, no adjustments were made to such pricing information.


⁽³⁾	The maturities of our long-term marketable securities generally range from one to four years.

Proceeds from sales of available-for-sale securities for 2015, 2014, and 2013 were $1.49 billion, $355 million, and $526 million, respectively. Gross realized gains and losses from sales of available-for-sale securities were not significant for any period presented. As of September 3, 2015, none of our available-for-sale securities had been in a loss position for longer than 12 months.